17. A3_6_Auto Tank Gauge (Morrison Bros. Co - 918DP).pdf

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918DP Clock Gauge Installation, Operation, and Maintenance Instructions

The 918DP Clock Gauge is designed to measure liquid volume in an aboveground storage tank. The gauge mounts on top of the tank and is activated by a float connected to a cable. The 918DP contains two normally open switches to connect to an alarm device that can provide an audible alarm at two desired tank levels that are set during installation.

Failure to follow any or all of the warnings and instructions in this document could result in a hazardous liquid spill, which could result in property damage, environmental contamination, fire, explosion, serious injury or death.

NOTE: The most accurate method to calibrate the tank is with fluid in it. This will take into account variables associated with the float position, the mechanism, and the fluid density. To calibrate a low alarm setting, the tank fluid level must be several inches lower than the desired alarm level setting.

Electrical Switch Ratings 10 watt resistive load, 127VAC-354mA max/ 180VDC-500mA max (Ratings for resistive loads only.)

*Do not use for inductive loads.

Gauge Installation & Calibration

.A WARNINGS

• Fire Hazard - Death or serious injury could result from spilled liquids.

• You must be trained to install or maintain this gauge. Stop now if you have not been trained.

• Any modification to this gauge other than those stated in these installation instructions will void the product warranty,

• This device is intended to be used as an auxiliary warning to the operator of a possible overfill situation and should not be the only system in place to prevent a tank from overfilling. It is the sole responsibility of the operator to continuously prevent any spillage regardless of the situation or status of the gauge.

•-Install in accordance with all applicable local, state, and federal laws.

• For your safety, it is important to follow local, state, federal and/or OSHA rules that apply to work ing inside, above, or around the storage tank and piping area. Use all personal protective equipment required for working in the specific environment.

• Tanks could be under pressure. Vapors could be expelled from tank vents, piping, valves or fittings while performing installation. Vapors could catch fire or cause an explosion. Avoid sparks, open flame, or hot tools when working on gauge.

• Use a dampened cloth when cleaning the clear front cover of the gauge or 918 alarm device to prevent static buildup and discharge.

• In the event of malfunction, contact Morrison Bros. Customer Service.

rev. 09-30-15 Momson Bros. Co. • Dubuque, IA • 800-5534840

918DP-0120PPEVR

Steps

1. Verify contents of box. You should have received the gauge, float, installation instructions, re-order/overfill labels, warning tag, cable tie, and optionally the alarm device. Inspect the items for shipping damage. DO NOT use if damage is found. DO NOT pull and release the cable uncontrollably. This can cause damage to the internal mechanism and render the gauge inoperable. ALWAYS hold onto cable and allow itto move in a slow steady motion.

2. Locate the opening, on the top of the tank, where the gauge is to be installed. If possible, select a location away from the fill port to avoid excessive turbulence that could affect the float. Also make certain that there are no objects inside the tank, near the selected opening, upon which the float and cable could get tangled.

3. Once an opening is selected, measure to the bottom to determine the current liquid level height in the tank.

Record this height in feet and inches as you will need it to set the gauge once it is installed.

4. Apply pipe dope or Teflon tape to the male threads on the gauge. If you have a gauge with female threads, apply the pipe dope or Teflon tape to the male threads of the pipe on the tank. DO NOT get pipe dope on the cable of the gauge.

5. Open the float clip and attach the float clip to the swivel end of the cable. Latch the float clip making sure the float clip is securely closed.

6. Slowly lower the float into the tank. Guide the cable through your fingers letting the cable slide through slowly.

DO NOT allow the float to free fall into the tank as this will cause the cable to come off of the pulley mecha nism and render the gauge inoperable.

7. Once the float is resting on the liquid level (or tank bottom if the tank is empty) thread the gauge into, or onto, the tank fitting. Use a pipe wrench or strap wrench, on the large hex at the bottom of the gauge, to tighten the gauge into, or onto, the tank fitting.

8. Remove the back plate retaining ring and back metal cover from the gauge. Hold the large pulley wheel in place and loosen the thumb nut (Figure 1). Insert a small flat blade screwdriver into the slot on the end of the shaft. Rotate the shaft with the screwdriver, which will move the gauge hand, until the gauge hands indicate the level that you recorded in Step 3. Note: Short hand indicates feet and long hand indicates inches

Shaft a Thumb Nut

Large Pulley Wheel

STANDARD VERSION

Small hand = Feet Large hand = Inches

EXAMPLE:

Clock reads 9:27;

Liquid level is 9 feet,

5.25 inches.

Fig. 2

9. Once you have the hands in the correct position, hold the screwdriver firmly in position and tighten the thumb nut on the shaft.

I 0. Remove the front face retaining ring and remove the clear front cover.

rev. 09-30-15

Momsen Bros. Co. - Dubuque, IA - 80D-553-4s:40 c.• �

11. Setting Alarm Points Option 1: To calibrate an alarm setting to activate when fluid is rising (example--high level):

IMPORTANT: The tank fluid level must be several inc�es lower than the desired alarm level setting.

IMPORTANT: The 918DP alarm switches are normally open. For setting an alarm with fluid rising, alarming device inputs (918AC, 918D, or 918Q) should be set to normally open. See instruction and operations manuals for 918S, 918D, 918Q, and 918AC for proper configuration.

A. Connect desired alarm wire pair {A or B) to an alarming device such as a 918S, 918D, 918Q, or 918AC.

B. Rotate the thumb nut counter-clockwise (when facing rear of gauge, see Figure 4) to the desired alarm set point (see Figure 5). This will raise the float assembly out of the liquid. Be careful to maintain a firm grasp of the thumb nut to prevent free fall of the float.

FIGURE 4: Raising the float with thumb nut to desired alarm

FIGURE 5: Hold thumb nut at desired trip point.

Example- Alarm set point at 9 feet - 0 inches.

trip point.

C. Hold the thumb nut steady {see Figure 4) and face the clock face of the gauge (see figure 5.)

D. While holding the thumbwheel at desired set point, look and listen to determine if the alarm device (918AC, 9 I 80, or 9 I SQ) has already been activated:

• Ifm o If using a 918S, 9180, or 918Q, press test/cancel button at the alarm box.

• Slowly rotate alarm pointer counter-clockwise till alarm state comes on and at that point release alann pointer.

0 If using a 918AC pull the alarm pointer out and rotate counter-clockwise, until alarm state rums off, and slowly keep rotating alarm pointer till alarm state comes on and at that point release alarm pointer.

• lf D.Q o Pull the alarm pointer out and slowly rotate counter-clockwise till alarm state comes on and at that point release alarm pointer.

E. Verify alarm setting:

o Turn thumbwheel clockwise (when facing rear of gauge, see Figure 4) slowly let float drop to clear alarm state.

0 If using a 918S, 9180, or918Q, alarm state must be cleared by pressing test/cancel button.

o Once alarm state is off, rum thumb wheel counter clockwise (when facing rear of gauge, see Figure 4) raising the float raising the float to within 3 inches of set point.

o Then creep up on to set point, alarm state should come on within +/- 1 inch of desired set point.

F. Fine runing alarm setting:

If alarm state is coming on before desired alarm set point.

0 Pull up alarm pointer up and rotate it ever so slightly clockwise and release alarm pointer.

a Verify alarm set point and adjust accordingly, alarm state should come on within +/� 1 inch of desired set point.

• If alarm state is corn in,: on after desired alarm set point.

0 Pull up alarm pointer up and rotate it ever so slightly counter-clockwise and release alarm pointer.

0 Verify alarm set point and adjust accordingly, alarm state should come on within +/- I inch of desired set point.

G. Once set, slowly carefully allow the float to drop.

rev. 09-30-15

Momson Bros. Co. - Dubuque, IA - 800-553-4840

S1BOP-0120PPEVR

11. Setting Alarm Points Continued ...

Option 2: To calibrate an alarm setting to activate when fluid is dropping (example-low level):

IMPORTANT: The tank fluid level must be several inches lower than the desired alarm level setting.

IMPORTANT; The 918DP alarm switches are normally open. For setting an alarm with fluid drop ping, alarming device inputs (918AC, 918D, or 918Q) should be set to normally closed. See instruc tion and operations manuals for 918S, 918D, 918Q, and 918AC for proper configuration.

A. Connect desired alarm wire pair (A or B) to an alarming device such as a 9188, 918D, 918Q, or 918AC.

B. Rotate the thumb nut counter-clockwise (when facing rear of gauge, see Figure 4) to the desired alarm set point (see Figure 5). This will raise the float assembly out of the liquid. Be careful to maintain a firm grasp of the thumb nut to prevent free fall of the float.

FIGURE 4: Raising the float with thumb nut to desired alarm

FIGURE 5: Hold thumb nut at desired trip point.

Example- Alarm set point at 9 feet - 0 inches.

trip point.

C. Hold the thumb nut steady (see Figure 4) and face the clock face of the gauge (see Figure 5.)

D. While holding the thumbwheel at desired set point, look and listen to determine if the alarm device (918AC, 9 l 8D, or 91 SQ) has already been activated:

Ifns, o If using a 9188, 918D, or 918Q, press test/canceled button at the alarm box.

• Slowly rotate alarm pointer clockwise till alarm state comes on and at that point release alarm pointer.

o If using a 918AC pull the alarm pointer out and rotate clockwise, until alarm state turns off and slowly keep rotating alarm pointer till alarm state comes on and at that point release alarm pointer.

lfll.ll o Pull the alarm pointer out and slowly rotate clockwise till alarm state comes on and at that point release alarm pointer.

E. Verify alarm setting:

o Turn thumb wheel counter clockwise (when facing rear of gauge, see Figure 4) raising the float to clear alarm state.

0 If using a 918S, 9 l 8D, or 91 SQ, alarm state must be cleared by pressing test/cancel button.

o Once alarm state is off, slowly turn thumbwheel clockwise (when facing rear of gauge, see Figure 4) dropping the float to within 3 inches of set point.

o o Then creep down on to set point, alarm state should come on within +/- 1 inch of desired set point.

F. Fine tuning alarm setting:

• If alarm state is coming on before desired alarm set point.

0 Pull up alarm pointer up and rotate it ever so slightly counter-clockwise and release alarm pointer.

0 Verify alarm set point and adjust accordingly, alarm state should come on within +/- l inch of desired set point.

• If alarm state is coming on after desired alarm set point.

0 Pull up alarm pointer up and rotate it ever so slightly clockwise and release alarm pointer.

0 Verify alarm set point and adjust accordingly, alarm state should come on within +/� 1 inch of desired set point.

G. Once set, slowly carefully allow the float to drop.

rev. 09-30-15

Momsen Bros. Co. • Dubuque, IA • 800:553-4840

12. Before continuing, check alann points to an alarming device to verify alarm settings.

13. If installing the alann box, leave the gauge front and rear covers removed. If the alarm box will not be installed, or will be installed at a later date, replace the front and rear covers of the gauge.

Alarm Installation and Testing

Refer to 918 Series Alarm Installation, Operation and Maintenance Instructions (918S--0142 PP) for 918S, D, and Q models or (918AC-0142 PP) for the 918AC Series Alarm Devices.

Failure to follow any or all of the warnings and instructions in this document could result in a hazardous liquid spill, which could result in property damage, environmental contamination, fire, explosion, serious injury or death.

Operation

Steps

1. To detennine the height offluid in the tank, read the position of the gauge hands. Interpolate if necessary.

Note: Short hand indicates feet and long hand indicates inches. See Figures 2 and 3 above.

2. The tank manufacturer's chart will be required to translate fluid height into fluid volume.

3. Before a tank fill is initiated, the alarm device should be checked for proper operation and sufficient loudness.

Refer to the Alarm Installation, Operation and Maintenance Instructions (918S--0142 PP) for 918 S, D, and Q models or (918AC-0142 PP) for the 918AC Series Alarm Devices.

4. If the alann sounds while the tank is being filled, immediately halt filling operations.

Maintenance

This gauge should be maintained per applicable codes, or at least once each year.

Refer to 918 Series Alarm Installation, Operation and Maintenance Instructions (918S--0142 PP) for 918S, D, and Q models or (918AC-0142 PP) for the 918AC Series Alarm Devices •

.A WARNINGS

• Fire Hazard - Death or serious injury could result from spilled liquids.

• You must be trained to install or maintain this gauge. Stop now if you have not been trained.

• Any modification to this gauge other than those stated in these installation instructions will void the product warranty.

• This device is intended to be used as an auxiliary warning to the operator of a possible overfill situation and should not be the only system in place to prevent a tank from overfilling. It is the sole responsibility of the operator to continuously prevent any spillage regardless of the situation or status of the gauge.

• Install in accordance with all applicable local, state, and federal laws.

• For your safety, it is important to follow local, state, federal and/or OSHA rules that apply to work ing inside, above, or around the storage tank and piping area. Use all personal protective equipment required for working in the specific environment.

• Tanks could be under pressure. Vapors could be expelled from tank vents, piping, valves or fittings while performing installation. Vapors could catch fire or cause an explosion. Avoid sparks, open flame, or hot tools when working on gauge.

• Use a dampened cloth when cleaning the clear front cover of the gauge or 918 alarm device to prevent static buildup and discharge.

• In the event of malfunction, contact Morrison Bros. Customer Service.

rev. 09-30-15

Momson Bros. Co. - Dubuque, IA - 800:553-4840

Steps

1. Visually inspect the gauge and alarm for damage or excessive wear. If either is found replace the gauge or alarm.

2. If necessary, clean the clear front cover of the gauge or alarm box with a damp cloth.

3. Measure the fluid height and correlate it to the tank manufacturer's volume chart to verify the gauge volume reading. If readings do not match adjust the gauge setting according to the installation instructions.

4. Check alarm points to an alarming device to verify alarm settings. The tank fluid level must be several inches lower than the alarm level setting.

5. Refer to the Alarm Installation, Operation and Maintenance Instructions (918S--0142 PP) for 918 S, D, and Q models or (918AC-0142 PP) for the 918AC Series Alarm Devices.

6. Inspect the warning tag located near the tank fill and off-loading area. If the tag is damaged or difficult to read, contact Morrison Bros. at (800) 553-4840 for a free replacement tag.

Failure to follow any or all of the warnings and instructions in this document could result in a hazardous liquid spill, which could result in property damage, environmental contamination, fire, explosion, serious injury or death.

Optional Ovedill and Reorder Label Installation

NOTE: The template (see Figure 7) is intentionally reversed (mirror image) so the labels may be placed on the inside surface of the clear front cover. Therefore, the lettering of the labels is on the adhesive side and will read correctly once placed.

Steps

1. Template units are shown in feet. It will be necessary to determine the desired overfill and reorder points and convert those into feet in order to use this template.

2. Remove the front face retaining ring and remove the clear front cover.

3. Place the clear cover onto the template aligning the outside edge to the outside circle.

4. Remove indicator label backing and place label on the clear cover as shown on template. Align wider end against inside circle and narrower end pointing toward the level you want to indicate.

5. If both overfill and reorder labels are used, make sure each is pointing to the correct foot reading that pro vides the volumes you desire.

6. Reinstall the clear front cover with the labels on the inside. Make sure indicators are in correct location and wording is readable before putting gauge in service. Replace the front face retaining ring making certain the ring snaps all the way down into the groove. You will need to use pliers to squeeze the ring into the groove.

The retaining ring is correctly squeezed into place if the ends of the retaining ring do not overlap.

WARRANTY: If you believe this gauge has a defect due to material or workmanship, please contact Morrison for a return authorization. All products are thoroughly tested before shipment and meet all applicable performance standards and specifications. Only material found to be defective in manufacture will be replaced or repaired at our discretion. Claims must be made within one year from the date of installation, and Morrison Bros. Co. will not allow claims for labor or consequential damage resulting from purchase, installation or misapplication of the product. The warranty registration information must be provided to the end user.

rev. 09-30-15

Mornson Bros. Co. • Dubuque, IA · 800-553-4840

Fig. 7: Overfill and Reorder Label Template rev. 09-30-15 Momson Bros. Co. - Dubuque, IA • 800:553.ll840

91 SAC Series System Interface Installation, Operation, and Maintenance Instructions

The 918AC Series is designed to provide a visible and audible alann. It is an A.C. powered device intended to be located in an ordinary location. The 918AC Series System Interface is configurable for one to four Intrinsically Safe, normally open or nonnally closed, dry contact inputs and from.zero to four fonn C (SPDT), dry contact outputs. The outputs may be configured as normally disengaged or normally engaged (fail-safe).

Two possible applications are use as an overfill alarm or as an interstitial alarm.

A Failure to follow any or all of the warnings and instructions in this document could result in a hazardous .... liquid spill, which could result in property damage, environmental contamination, fire, explosion, serious injury or death.

A Le fait de ne pas se conformer a I'un ou I'autre des avertissements ou a l'une ou l'autre des directives .... apparaissant dans ce document pourrait donner lieu a des deversements de Iiquides dangereux, lesquels pourraient engendrer des dommages materiels, des risques de contamination environnementale, d'incendie ou d'explosion, des blessures graves ou la mort.

Contents

Specifications Installation and Testing

Mounting Steps to Wire and Configure the System Interface

Input Module{s) Facilities Section of the System Interface Output Module(s) (ifso equipped) Completion

Steps to Configure the 918AC Series System Interface Motherboard Auto-Silence Audible Alarm 'Heartbeat' Function

Steps to Test the 918AC Series System Interface Operation

Use as an Overfill Alarm Use as in Interstitial Alarm

Maintenance Monthly Yearly

DIP Switch Configuration Tables Input Module Output Module Motherboard

Replacement Parts 918AC System Interface Control Drawing B-7767-14 rev.11-20-14

Momsen Bros. Co. - Dubuque, IA - 800-553-4840

918AC.0142 PP

Specifications

Description The 918AC Series System Interface is intended to be located in an Ordinary Location. Its inputs are intrinsically safe for use with Class I, Division I Group D. T4 Hazardous location with either normally open or normally closed dry contacts.

WARNING; This is an intrinsically safe device and must be wired in accordance with National Electrical Code Article 500. This device and its wiring may not share any junction box, conduit, or raceway with any other type circuit 01· wiring. Do not pe,form live maintenance. Do not substitute components with anything other than Morrison Bros. Co. components. Care must be taken lo avoid an ignition ha=ardji-om impact or friction with the enclosure.

AYERIJSSEMENT; Cet appareil intrinsequement securitaire doit etre branche conformement a !'article 500 du code electl'ique national. II se peut que ce dispositif et son cab/age ne partagenl pas de boile de connexion, de conduit ou de canalisation avec 1m autre type de circuit ou de cab/age. Ne mene= pas de travaux de maintenance sous tension. Ne remplace= /es composantes que par des composantes de Morrison Bros. Co.

Assure=-vous d 'el'iter le risque d 'inflammation pouvant decouler d'zm impact 011 de friction avec / 'enceinte.

Entity Parameters for Channel Inputs (Terminal Pl on each Dry Contact Input Module) v oc = 4.935 voe 1 c = 99.697 mA

Output Module Contact Rating 240 VAC Maximum 5 Amps Maximum

System Interface Input Power Nominal Input Voltage: 120/240VAC Maximum Current Draw: 0.0325A Maximum Power Consumption: 1.77W Line Frequency: 50/60Hz

Ca=0.37 µF

Power Supply Protection Fuse Rating: I .QA FA 5x20mm

Operating Temperature -40°F to l 40°F (-40°C to 60°C) to 100% humidity

Enclosure Rating

NEMA4X

Maximum Wiring Distance

La = 1.43 µH P

= 0.123 W

Maximum wiring distance between Alarm and input device is 5000 ft.

rev.11-20-14

Mornson Bros. Co. - Dubuque, IA - 800:553-4840

918AC--0142 PP

Installation and Testing

A Warnings .... • Fire Hazard - Death or serious injury could result from spilled liquids.

• You must be trained to install or maintain this alarm. Stop now if you have not been trained.

• Any modification of this unit beyond what is outlined in this instruction will void product warranty.

• For your safety, it is important to follow local, state, federal and/or OSHA rules that apply to working inside, above, or around the storage tank and piping area. Use all personal protective equipment required for working in the specific environment.

• This device is intended to be used air an auxiliary warning to the operator of an abnonnal condition of the system, such as a possible overfill situation and should not be the only system in place to prevent an unwanted condition, such as preventing a tank from overfilling. It is the sole responsibility of the operator to continuously prevent any spillage regardless of the situation.

• Tanks could be under pressure. Vapors could be expelled from tank vents, piping, valves or fittings while perfonning maintenance. Vapors could catch fire or cause an explosion. Avoid sparks, open flame, or hot tools when working on tank system.

• Use a dampened cloth when cleaning the alarm enclosure to prevent static buildup and discharge.

• In the event of malfunction, contact Morrison Bros. Customer Service.

A Avertissements .... • Risque d'incendie - Un deversement de liquide pourrait entrainer des blessures graves ou la mort.

• Vous devez avoir rec;:u une formation pour installer cette alarme ou en assurer la maintenance. Arretez-vous immediatement si vous n'avez rec;:u aucune formation A cet effet.

• Toutes les modifications apportees A cette unite autres que celles indiquees dans ces directives engendreront l'annulation de la garantie du produit.

• Pour assurer votre securite, ii est important de vous confonner A la reglementation locale, d'Etat, federale ou OSHA regissant !es �avaux A I 'interieur, au-dessus ou autour du reservoir de stockage et de la zone de canalisation. Utilisez tout I 'equipement de protection individuelle exige pour travailler dans l'environnement specifique.

• Cet appareil est destine a etre utilise comme mecanisme avertissant l'operateur d'un etat anormal du systeme tel une situation de rernplissage excessif et ne devrait pas etre le seul systeme en place pour empecher un etat indesirable, par exemple, un reservoir qui se remplit trop. L'operateur a l'entiere responsabilite.de s'assurer continuellement de prevenir tout deversement, quelle que soit la situation.

• Les reservoirs pourraient etre sous pression. Des vapeurs pourraient etre expulsees des conduits d'aeration, des canalisations, des soupapes ou des raccords du reservoir durani la maintenance. Les vapeurs pourraient s'enflammer ou engendrer une explosion. Evitez Jes etincelles, les ftammes nues ou les outils chauds ]ors de travaux menes dans le systeme du reservoir.

• Utilisez un linge humide pour nettoyer l'enceinte de l'alarme afin de prevenir l'accumulation d'electricite statique et Jes decharges.

• En cas de defaillance, communiquez avec le service a la clientele de Morrison Bros.

Note: As defined in Article SOI -Class l Locations ofNFPA 70, this apparatus and its connected wiring are intrinsically safe. Under normal conditions this apparatus and its wiring cannot release sufficient energy to ignite a specific ignitable atmospheric mixture by opening, shorting, or grounding.

rev.11-20-14

Momsen Bros. Co. - Dubuque, IA - 800:553-4840

918AC-0142 PP

WARNING:

Interconnect wiring between the sensor(s) and the System Interface unit must be kept totally isolated and separate from any other wiring. This wiring must not share any junction box, conduit, raceway, or fixtures with circuits other than those defined by NEC as being intrinsically safe for all Class 1 locations.

These inputs are ground referenced and only require "basic insulation."

AVERTISSEMENT:

Le cablage d'interconnexion entre lajauge et !'unite d'alarme doit etre completement isole et distinct du reste du cablage. Le cablage ne doit partager aucune boite de connexion, aucun conduit, aucune canalisation, ni aucun accessoire avec des circuits autres que ceux definis par NEC comme etant intrinsequement securitaires pour tous !es emplacements de classe 1.

Ces entrees sont mises a la terre et ne requierent qu'une « isolation de base».

Location:

The System Interface enclosure is only approved for operation outside of all hazardous locations as defined by the National Electrical Code or NFPA 70.

Mounting rev.11-20-14

To maintain the enclosure's NEMA 4X rating

• Three openings have been provided in the bottom of the NEMA 4X enclosure for connection and wiring. Only use Thomas & Betts Cat. No. H050GR-TB or H050-TB or equivalent W' hubs in these openings.

• Mounting tabs have been provided with the product to mount the enclosure; do not make additional holes in this enclosure.

• Ensure that both cover latches are latched at all times.

Failure to follow these instructions voids any assurance that the enclosure is NEMA 4X.

Mornson Bros. Co. - Dubuque, IA - 800:553-4840

Figure I Basic Layout of the 918AC lmput Module(s)

1. Preparation

a. Open the front cover of the System Interface by releasing the two cover latches and swinging the cover open.

b. Remove and retain the two screws with their flat washers. Remove the metal cover of the intrinsically safe section (see Figure I).

2. Wiring

a. Run two oil and gas resistant wires from each input device to the location where the System

Interface will be mounted. Enter the enclosure through the LEFT bottom opening ONLY. If a junction box is used, do NOT attach the wires of the input device(s) at this time. If the input device is a Normally-Closed contact, connect the two wires together at the device end. If the device is a Normally-Open contact, verify that the two wires are not connected to one another.

b. Connect the two wires from each input device to the two screw terminals for each channel input of the Channel Input Connector (Pl) for each Input Module (see Figure 2 and Figure 3).

--,-1

11 I\ n :\ 1, Strip off about \4 inch (5mm) of insulation from the wire and twist the ends of the wire.

The Channel Input Connector Insert the wire fully into the connector & snug the screw.

rev.11-20·14

Figure 2 Wiring the Channel Input Connector

Momson Bros, Co. - Dubuque, IA - 800:553-4840

c. Verify that they are securely held in the connector by gently tugging on them.

ct. Plug the connector onto the Channel Input pins of the Dry Contact Input Module (see Figure 3).

Figure 3 Plug the Channel Input Connector onto the Channel Input Pins of the Alarm Circuit Board

e. Repeat steps 2 through 2.d for each remaining Input Channel.

3. Configuration

a. For Normally Open Contact Input Devices: If the input device to be connected to a particular Dry

Contact Input Module utilize normally open contacts, verify that the DIP switch on that module, SW!, is in the "ON" position (see Figure 4).

b. For Normally Closed Contact Input Devices: If the input device to be connected to a particular Dry Contact Input Module utilizes normally closed contacts, place the DIP switch on that module, SW!, in the "OFF" position (see Figure 4).

Figure 4 Configuring Input Mode with SWl

4. Completion

a. Inspect all of the wiring to verify that it has been done properly. Correct any discrepancies and re inspect.

b. When the installation has passed inspection, reinstall the cover over the Intrinsically Safe section of the System Interface.

i. Place the cover in place and very loosely install the screws with their flat washers as shown in Figure 5

Figure 5 Installing the I.S. Cover

-------------------------�M-o=rn=s=on�s=r=o,�. �co�.--�o�u=o=uq=u�e.�1A�-�su=a-�s=s�3-4�84.!o rev.11-20-14 918AC-0142 PP

ii. Gently push the cover over to the wall of the enclosure and secure in place with the screws.

iii. Snug the screws down.

IMPORTANT NOTE: Verify that the power is shut off and the appropriate "Lockout!fagout" (LOTO) procedure is being adhered to before attempting any power wiring. This is true for both the Power Input to the System Interface and the devices connected to the Output Modules.

facilities section of the System lntedace .fill.IE;, A circuit breaker m..un be:

• included in this installation

• suitably located and easily reached

• marked as the disconnecting device for the 918AC being installed

1. Preparation

a. Remove the cover over the Facilities section of the System Interface (see Figure 1).

b. Remove and retain the three screws that secure the cover in place.

c. Remove the cover.

2. Wiring

a. Unplug the System Interface power input connector (J401/LNG) from the Motherboard.

b. Wire AC power from a dedicated circuit breaker, to the System Interface connector with the proper wire per the appropriate electrical codes. Wiring shall be in accordance with the National Electric Code and local regulation. Enter the enclosure through the center bottom hole ONLY.

A circuit breaker nuw: be:

rev.11-20-14

• included in this installation

• suitably located and easily reached

• marked as the disconnecting device for the 918AC being installed

c. Be sure to connect input ground to the Intrinsic Safety Grounding Stud on the baseplate of the Figure 9 I 8AC inside the enclosure (see Figure 6).

d. Connect the Intrinsic Safety Grounding Stud to an appropriate ground. Refer to NFPA 70, Article 504 for ground suitability.

Figure 6 Intrinsic Safety Grounding Stud

e. Strip the wire as shown in Figure 2.

f. Insert the wire fully into the power input connector & snug the screw

g. Repeat 2.e through 2.ffor the remaining wires.

i. "L"-+ "Line" or HOT

ii. ''N" -+ "Neutral"

iii. "G" -+ "Ground"

h. Verify that the wires are securely held in the connector by gently tugging on them.

i. Connect the input power to the Motherboard at J401/LNG being sure to pay attention to the polarization of the connector.

j. DO NOT APPLY POWER TO THE SYSTEM INTERFACE.

Momson Bros. Co. - Dubuque, IA - B00-553-4840

91SAC-0142 PP

Output Module(s) (if so equipped)

NOTE: See "Output Module Contact Rating" section of the "Specifications" section of this document (on page 2, above) for the contact rating for the output �odules.

1. Wiring

a. Wiring shall be in accordance with the National Electric Code and local regulation. Enter the enclosure from the right bottom hole only.

b. Strip the wire as shown in Figure2.

c. Insert the wire fully into the connector & snug the screw

d. Repeat 1.b through 1.c above for the remaining wires as required by your application.

i. "C" --+ "COMMON"

ii. ''NO" --+ ''Normally-Open" contacts (C --+ NO only when relay is activated)

iii. "NC"--+ "Normally-Closed" contacts (C--+ NC only when relay is de-activated)

iv. Verify that the wires are securely held in the connector by gently tugging on them.

e. Connect the Output Connector to the Output Module connector, Pl, as shown in Figure 7.

Figure 7 Connecting the Output Connector to the Output Module connector, Pl

f. Repeat 1 through 1.e for each remaining Output Module.

2. Configuration rev.11-20-14

a. Alarm Channel - Configures a Dry Contact Output Module to respond to specific input channels.

Each Output Module may be configured to be activated by one or more input channels in any combination. This is accomplished by setting DIP switch positions one through four of S2 either ON (selecting a channel) or OFF (not selecting a channel).

Momsen Bros. Co. • Dubuque, IA • 800:553-4640

Figure 8 - Output Module Alarm Channel Configuration

i. Locate the four position DIP switch, S2, on the Output Module to be configured (see Figure 8).

ii. Place DIP switch Position One in the "ON" position to configure the output module to respond to Input Channel One or in the "OFF" position to configure the Output Module to not respond to Input Channel one.

iii. Place DIP switch Position Two in the "ON" position to configure the output module to respond to Input Channel Two or in the "OFF" position to configure the Output Module to not respond to Input Channel two.

iv. Place DIP switch Position Three in the "ON" position to configure the output module to respond to Input Channel Three or in the "OFF" position to configure the Output Module to not respond to Input Channel three.

v. Place DIP switch Position Four in the "ON" position to configure the output module to respond to Input Channel Four or in the "OFF" position to configure the Output Module to not respond to Input Channel four.

b. Relay Mode- Configure the Dry Contact Output Module as Normally-Deactivated or Normally Activated (fail-safe)

NOTE: Fail-Safe mode swaps the definition of the relay contact state. Nom1ally-Open (NO) contacts become Normally-Closed (NC) and Normally-Closed (NC) contacts become Normally-Open (NO).

rev.11-20-14

Morrison Bros. Co. - Dubuque, IA - 800-553-4840

Figure 9 - Output Module Mode Configuration

i. Locate the single position DIP switch, S 1, on the Output Module to be configured (see Figure 9).

ii. Place this DIP switch in the "OFF" position if the output is to be configured as Normally Deactivated.

iii. Place this DIP switch in the "ON" position if the output is to be configured as Normally Activated (Failsafe}.

Completion

1. Inspect all of the wiring to verify that it has been done properly. Correct any discrepancies and re-inspect.

2. When the installation has passed inspection, reinstall the cover over the Facilities section of the System

Interface

a. Place the cover in place and install the three screws.

b. Snug the screws down.

rev.11-20-14

· 10 Momson Bros. Co. - Dubuque, IA • 800:553-4840 steps to Configure the 91 BAC Series system Interface Motherboard

Auto-Silence

Select which input channels will automatically silence after a 3 minute timeout period.

Figure 10 - Motherboard Auto-Silence Configuration

I. Locate the four position, Auto-Silence DIP switch, SWlOl, on the Motherboard (see Figure 10).

2. Place DIP switch Position One in the "ON" position to configure the Motherboard to automatically silence an alarm on channel one after timeout. Place DIP switch Position One in the "OFF" position to configure the Motherboard to continuously indicate an alarm on channel one.

3. Place DIP switch Position Two in the "ON" position to configure the Motherboard to automatically silence an alarm on channel two after timeout. Place DIP switch Position Two in the "OFF" position to configure the Motherboard to continuously indicate an alarm on channel two.

4. Place DIP switch Position Three in the "ON" position to configure the Motherboard to automatically silence an alarm on channel three after timeout. Place DIP switch Position Three in the "OFF" position to configure the Motherboard to continuously indicate an alarm on channel three.

5. Place DIP switch Position Four in the "ON" position to configure the Motherboard to automatically silence an alarm on channel four after timeout. Place DIP switch Position Four in the "OFF" position to configure the Motherboard to continuously indicate an alarm on channel four.

rev.11-20-14

Momson Bros. Co. - Dubuque, IA - 800:553-4840

91BAC-0142 PP

Audible Alarm

Select which channels will produce an audible alarm.

Figure 11 M Motherboard Buzzer Configuration

1. Locate the four position, Buzz DIP switch, SW102, on the Motherboard (see Figure 11).

2. Place DIP switch Position One in the "ON" position to configure the Motherboard to provide both an audible and a visual alarm for input channel one. Place DIP switch Position One in the "OFF" position to configure the Motherboard to only provide a visual alann for channel one.

3. Place DIP switch Position Two in the "ON" position to configure the Motherboard to provide both an audible and a visual alann for input channel two. Place DIP switch Position Two in the "OFF" position to configure the Motherboard to only provide a visual alann for channel two.

4. Place DIP switch Position Three in the "ON" position to configure the Motherboard to provide both an audible and a visual alarm for input channel three. Place DIP switch Position Three in the "OFF" position to configure the Motherboard to only provide a visual alann for channel three.

5. Place DIP switch Position Four in the "ON" position to configure the Motherboard to provide both an audible and a visual alarm for input channel four. Place DIP switch Position Four in the "OFF" position to configure the Motherboard to only provide a visual alarm for channel four.

rev.11-20-14

Mornson Bros. Co. - Dubuque, IA • 800:553-4840

'Heartbeat' Function

Enable/disable the heartbeat function.

NOTE: The heartbeat function will periodically flash the indicators on the front cover of the System Interface to show observers that power is on. Any alarm condition present will override the heartbeat function. The heartbeat function is disabled in the factory by default. By enabling the heartbeat function, it will remain active (even after a power cycle) until disabled.

Figure 12 � Motherboard Reset Button

1. Open the front cover of the System Interface by releasing the two cover latches and swinging the cover open.

2. Locate the reset push button on the motherboard.

3. With power applied to the System Interface, press and hold the reset button.

4. On the front cover of the System Interface, press and hold the Silence/Test button.

5. Release the reset button.

6. Once you hear a beep from the System Interface, release the Silence/fest button.

Note: If the beep is followed by a quick flash of the indicators, the heartbeat function was enabled. If the beep was not followed by a quick flash of the indicators the heartbeat function was disabled.

rev.11-20-14

9\BAC-0142 PP

steps to Yest the 91 BAC Series System lntedace I. Determine which of the devices connected to the Output Module(s) need to be disconnected before beginning this test. Remove the cover over the Facilities Section and unplug these Output Channels.

2. Apply power to the System Interface.

3. Press and hold the "Silence(fest" pushbutton on the front panel of the System Interface. All of the indicators on the front panel should blink and the audible enunciator should sound.

4. Release the "Silence/rest" button.

5. Test the connection at the alarm and wiring

a. For Normally Open Contact Inputs:

i. Create an alarm condition:

1. Ifajunction box was used and the wires are not connected to the input device, connect· the two wires together at the input device end for each input device.

2. If a junction box was not used or the 91 SAC input was connected to the input device, activate each input device.

ii. The System Interface should show an alarm until the Test/Cancel button is pushed.

iii. If the input being tested is configured to sound the audible enunciator (buzzer), then the

System Interface should also sound the alarm.

iv. Verify that the Output Module{s) (if they are installed) and the devices they are connected to respond as configured.

NOTE: There is an indicator � on the output module (see Figure 13) that illuminates when the relay is activated. It is only visible when the Facilities section cover is removed (see Figure 13).

v. If the System Interface fails to respond properly, check the connections and retest until results are satisfactory.

vi. Repeat for each channel.

b. For Normally Closed Contact Inputs:

i. Create an alarm condition:

I. If a junction box was used and the wires are not connected to the input device, disconnect the two wires at the input device end for each input device.

2. lfajunction box was not used or the 918AC input was connected to the input device, activate each input device.

ii. The System Interface should show an alarm until the Test/Cancel button is pushed.

iii. If the input being tested is configured to sound the audible enunciator (buzzer), then the

System Interface should also sound the alarm.

iv. Verify that the Output Module(s) (if they are installed) and the devices they are connected to respond as configured.

NOTE: There is an indicator� on the output module {see Figure 13) that illuminates when the relay is activated. It is only visible when the Facilities section cover is removed.

1. If the System Interface fails to respond properly, check the connections and retest until results are satisfactory.

2. Repeat for each channel.

Figure 13 - Location of the Output Board Indicator

6. Connect the wires from the System Interface Unit to the wires of the input device(s) at the junction box for each device, if not already done. Replace the junction box cover(s).

7. It is recommended to simulate an alarm condition and manually trigger the alam1 using input device(s) (Clock Gauge, float switch or other dry contact device). If it does not, check wiring at junction box and verify that the installation procedure was performed correctly. The alarm can be silenced after being activated by pressing the Test/Cancel button.

8. Remove power from the System Interface.

rev.11-20-14

Mornson Bros. Co. - Dubuque, IA - 800-553-4840

91 SAC.0142 PP

DO NOT PROCEED PAST THIS POINT UNTIL ALL TESTS HAVE BEEN PASSED

9. Plug in all Output Connectors to their respective Output Module(s) that were previously disconnected and reinstall the cover over the Facilities Section of the System Interface.

10. Close the enclosure and secure.

11. Power may be applied to the System Interface and the unit put into service.

IMPORTANT: Install the included Warning Tag where it will be visible to the operator filling or unloading the tank that is fitted with this alarm system, if applicable.

Failure to follow any or all of the warnings and instructions in this document could result in a hazardous liquid spill, which could result in property damage, environmental contamination, fire, explosion, serious injury or death.

A Le fait de ne pas se conformer a l'un ou l'autre des avertissements ou a l'une ou l'autre des directives ..... apparaissant dans ce document pourrait donner lieu a des deversements de liquides dangereux, lesquels pourraient engendrer des dommages materiels, des risques de contamination environnementale, d'incendie ou d'explosion, des blessures graves ou la mort.

rev.11-20-14

Momsen Bros. Co. - Dubuque, IA - 800-553-4840

Operation The 918AC Series System Interface may be used in applications where one to four sets of normally open or normally closed dry contacts are available. Two possible applications are use as an overfill alarm or as an interstitial alarm. These two uses are addressed below.

Use as an Overfill Alarm Use with the Morrison Brothers 918 Clock Gauge or other similar input device.

1. Prior to filling a tank,

a. Check for an existing overfill condition by observing the front panel.

i. A blinking channel indicator and no audible alarm tells you that there is an existing, auto silenced alarm on that channel.

ii. A solidly illuminated indicator tells you that there is an existing, manually acknowledged alarm on that channel.

b. Check the overall operation of the System Interface.

i. Press and hold the "Silenc�/fest" button while listening to the Audible Alarm and observing the Channel Alarm Indicator(s).

ii. All of the Visual Enunciators should be slowly blinking

iii. The Audible Enunciator/ Alarm should be loud and strong, sounding about one second on and one second off.

2. If an overfill occurs while filling the tank, the Channel Alarm Indicator associated with the overfill condition will flash and, if configured to do so, the Audible Alarm will sound.

a. The alarm can be acknowledged and silenced by pressing the "Silence/fest" button on the front of the Alarm.

b. If the alarm is not silenced by the operator, and the channel is configured to "Auto-Silence", then the System Interface will continue in the alarm state for no more than the timeout period at which point it will silence itself. The visual indicator on the front panel will continue to blink, showing a new, un-acknowledged alarm.

Use as an Interstitial Alarm

I. Should the contacts associated with an interstitial switch be activated, the System Interface will immediately go into an alarm state; it will illuminate the Channel Alarm Indicator associated with the alarm condition and, if configured to do so, sound the Audible Alarm.

2. If the System Interface is configured to "auto-silence" on the channel associated with the interstitial sensor, and the alarm is not silenced manually by pressing the "Silence/fest" button, the System Interface will continue in this alarm state for no more than its timeout period at which point it will silence itself. The visual indicator on the front panel will continue to blink, showing a new, un-acknowledged alarm.

3. Ifan operator acknowledges the alarm condition by pressing the "Silence/Test'' button, the System Interface will silence the audible enunciator (if configured to sound on this input) and the channel alarm indicator will illuminate continuously until the alarm condition is removed.

4. To check for an alarm state once the Alarm has silenced itself simply observe the front panel. A blinking channel indicator and no audible alarm tells you that there is au existing, auto-silenced alarm on that channel.

A channel indicator which is continuously illuminated indicates that there is an existing, acknowledged (silenced) alarm.

rev.11-20-14

Mornson Bros. Co. - Dubuque, IA - 800-553-4840

Maintenance

Warnings

• Fire Hazard - Death or serious injury could result from spilled liquids.

• You must be trained to install or maintain this alarm. Stop now if you have not been trained.

• Any modification of this unit beyond what is outlined in this instruction will void product warranty.

• For your safety, it is important to follow local, state, federal and/or OSHA rules that apply to working inside, above, or around the storage tank and piping area. Use all personal protective equipment required for working in the specific environment.

• This device is intended to be used as an auxiliary warning to the operator of an abnormal condition of the system, such as a possible overfill situation and should not be the only system in place to prevent an unwanted condition, such as preventing a tank from overfilling. It is the sole responsibility of the operator to continuously prevent any spillage regardless of the situation.

• Tanks could be under pressure. Vapors could be expelled from tank vents, piping, valves or fittings while performing maintenance. Vapors could catch fire or cause an explosion. Avoid sparks, open flame, or hot tools when working on tank system.

• Use a dampened cloth when cleaning the alann enclosure to prevent static buildup and discharge.

• In the event of malfunction, contact Morrison Bros. Customer Service.

Avertissements

• Risque d'incendie - Un deversement de liquide pourrait entrainer des blessures graves ou la mort.

• Vous devez avoir re9u une formation pour installer cette alarme ou en assurer la maintenance. Arretez-vous immediatement si vous n'avez re9u aucune formation a cet effet.

• Toutes les modifications apportees a cette unite autres que celles indiquees dans ces directives engendreront l'annulation de la garantie du produit.

• Pour assurer votre securite, ii est important de vous conformer a la reglementation locale, d'Etat, federale ou OSHA regissant les travaux a l'interieur, au-dessus ou autour du reservoir de stockage et de la zone de canalisation. Utilisez tout l'equipement de protection individuelle exige pour travailler dans l'environnement specifique.

• Cet appareil est destine a etre utilise comme mecanisme avertissant l'operateur d'un etat anormal du systeme tel une situation de remplissage excessif et ne devrait pas etre le seul systeme en place pour empecher un etat indesirable, par exemple, un reservoir qui se remplit trop. L'operateur a l'entiere responsabilite de s'assurer continuellement de prevenir tout deversement, quelle que soit la situation.

• Les reservoirs pourraient etre sous pression. Des vapeurs pourraient etre expulsees des conduits d'aeration, des canalisations, des soupapes ou des raccords du reservoir durant Ia maintenance. Les vapeurs pourraient s'enflammer ou engendrer une explosion. Evitez Jes etincelles, les flammes nues ou les outils chauds tors de travaux menes dans le systeme du reservoir.

• Utilisez un linge humide pour nettoyer l'enceinte de l'alarme afin de prevenir !'accumulation d'electricite statique et les decharges.

• En cas de defaillance, communiquez avec le service a la clientele de Morrison Bros.

There are two scheduled maintenance operations:

MONTHLY: Test the overall operation of the System Interface…