Amend_2_-_Attach_3_-_40_71_13_Magnetic_Flow_Meters_0002.pdf

DIVISION 40 – PROCESS INTEGRATION

SECTION 40 71 13 – MAGNETIC FLOW METERS

Klamath Falls N.F.H. 40 71 13-1 New National Fish Hatchery

PART 1 - GENERAL

1.01 DESCRIPTION OF WORK

A. This work includes the procurement, delivery, and installation of inline magnetic flow meter for permanent installation on above ground well discharge piping. The meter shall utilize autozeroing, bipolar, pulsed DC measuring technique to measure voltage induced by the flow of conductive liquid through a magnetic flux. The voltage shall be linearly proportional to flow velocity from 0 to 33 feet per second and rated for up to 399 gpm.

1.02 RELATED SECTIONS

A. Section 33 10 00 Water Utilities

1.03 SUBMITTALS

A. Furnish complete Product Data, Shop Drawings, Test Reports, Operating Manuals, Record Drawings, Manufacturer’s Certifications, Manufacturer’s Field Reports.

B. Product Data:

1. Dimensional Drawings

2. Materials of Construction

a. Sensor

b. Liner

c. Electrodes

d. Process connection

3. Measurement accuracy

4. Range and range ability

5. Enclosure Rating

6. Classification Rating

7. Power

a. Voltage

b. Wattage

8. Output Options

1.04 QUALITY ASSURANCE

A. Manufacture instruments in facilities certified to the quality standards of the National Institute of Standards and Technology (NIST).

1.05 DELIVERY, STORAGE AND HANDLING

A. Store all instruments in a dedicated structure with space conditioning as required to meet the recommended storage requirements provided by the Manufacturer.

B. Any instruments that are not stored in strict conformance with the Manufacturer’s recommendation shall be replaced.

Klamath Falls N.F.H. 40 71 13-2

1.06 PROJECT OR SITE CONDITIONS

A. Provide instruments suitable for the installed site conditions including, but not limited to, material compatibility, site altitude, process and ambient temperature, and humidity conditions.

1.07 CALIBRATION AND WARRANTY

A. The meter shall have standard one year warranty from date of shipment. If the meter is commissioned by a factory certified technician, the warranty is extended to three years from the date of shipment.

1.08 MAINTENANCE

A. Provide all parts or materials necessary for maintenance and calibration purposes throughout the warranty period. Deliver all of these supplies before project substantial completion.

1.09 LIFECYCLE MANAGEMENT

A. Instrument documentation, like original calibration certificates, manuals and product status information shall be accessible via a web enabled system with a license. The instrument specific information shall be accessed via serial number. When services are provided by an authorized service provider, the service information (ex.

subsequent field calibrations) shall be archived and accessible via this web enabled system.

PART 2 - PRODUCTS

2.01 MANUFACTURER

A. One of the following:

1. Sparling Instruments LLC – FM676

2. Approved Equal

2.02 MANUFACTURED UNITS

A. The flow meter shall be a flanged sensor and transmitter mounted integral to the sensor with ceramic coating.

1. The sensor shall be microprocessor based and possess a method in which to store the sensor calibration and transmitter setup information in non-volatile memory.

2. The sensor shall be the proper size to measure the design flow rate of the piping and measure bi-directional flow as a standard.

3. The sensor shall consist of a stainless steel flow tube with ANSI B16.5 welded carbon steel flanges. The flanges shall be Class 150.

4. The sensor liner and electrode material shall be compatible with the geothermal water. Sensor shall require a minimum conductivity of 5 µS/cm.

5. The sensor tube shall be lined with polyurethane in accordance with NSF-61.

6. The sensor shall house two measuring electrodes, a grounding electrode, and one for physical empty pipe detection. The electrodes shall be made of 316 SS.

Klamath Falls N.F.H. 40 71 13-3

7. Optional 0.2% of rate calibration is available with this sensor design however the flowmeter must be installed with the proper upstream (5 diameters) and downstream (2 diameters) pipe run requirements.

8. The external sensor housing shall enclose the coil assemblies and internal wiring. The materials shall be designed and constructed to prevent moisture ingress and promote corrosion resistance.

9. The sensor shall be rated for NEMA 4X as standard.

B. The transmitter shall be a microprocessor controller mounted to the sensor body.

The transmitter shall operate on DC (8V-36V) via a dedicated power supply as specified. Battery shall be long life (3-5 years) allowing replacement without the need for tools. The transmitter housing will carry a NEMA 4X rating and shall be constructed to prevent moisture ingress and promote corrosion resistance.

1. The transmitter shall allow local programming that can be operated via an optical display without opening the compartment.

2. The transmitter display shall indicate simultaneous flow rate and total (net) with user-selectable engineering units.

3. The transmitter primary output shall be:

a. Vdc pulse with 12.5/25/50/100 ms on-time, 0-60 Hz max into 100 ohm impedance minimum.

4. The transmitter shall internally retain all setup parameters, calibration parameters and accumulated measurements in non-volatile memory in the event of power failure.

2.03 ACCESSORIES

A. Stainless steel tag - labeled to match the contract documents.

B. Provide grounding rings, as per manufacturer’s recommendations, if required.

C. Provide sun shield for outdoor installations as required per the manufacturer’s recommendations.

2.04 SOURCE QUALITY CONTROL & CALIBRATION

A. Electromagnetic flow meters shall be factory calibrated with certified accuracy traceable to NIST per “General Requirements for the Competence of Testing and Calibration Laboratories”

B. Evidence of accreditation must originate from a national verification agency such as

A2LA.

C. Each meter shall ship with a certificate of a 2-point calibration report exceeding stated standard accuracy of 0.5% or 0.2% of rate as specified.

1. An optional calibration for 0.5% or 0.2% flat specification across the measuring range as identified in the manufacturer’s technical documentation.

D. A real-time computer generated printout of the actual calibration data points shall indicate apparent and actual flows. The flow calibration data shall be confirmed by the manufacturer and shipped with the meters to the project site.

Klamath Falls N.F.H. 40 71 13-4

E. The manufacturer shall provide complete documentation covering the traceability of all calibration instruments.

2.05 SAFETY

A. All electrical equipment shall meet the requirements of ANSI/NFPA 70, National Electric Code latest addition.

B. Electrical equipment housing shall conform to NEMA 4X classification.

PART 3 - EXECUTION

3.01 EXAMINATION

A. Examine the complete set of plans, pressures, and temperatures and furnish instruments that are compatible with installed condition.

B. Examine the installation location for the instrument and verify that the instrument will work properly when installed.

3.02 INSTALLATION

A. As shown on installation details and Drawings.

B. As recommended by the manufacturer’s installation and operation manual.

C. Specific attention should be given to the following technical requirements:

1. Verify ground rings (if required) have been installed according to the manufacturer’s recommendations.

3.03 FIELD QUALITY CONTROL

1. Each instrument shall be tested before commissioning and the Refuge Manager shall witness the interface capability in the PLC control system and associated registers.

a. Each instrument shall provide direct programming capability through the PLC

b. Each instrument shall provide direct control of totalizer reset functions through the PLC

c. Each instrument shall be supported with a device profile permitting direct integration in the PLC

2. The Refuge Manager shall witness all instrument verifications in the field.

3. Manufacturers Field Services are available for start-up and commissioning by a Factory field service representative or a manufacturer’s authorized service provider (ASP) – the warranty against manufacturing defects is three years.

a. Manufacturer representative shall verify installation of all installed flow tubes and transmitters.

b. Manufacturer representative shall notify the COR or Refuge Manager in writing of any problems or discrepancies and proposed solutions.

c. Manufacturer representative shall perform field verification at the time of installation for long-term analysis of device linearity, repeatability and electronics health. A comparative report shall be generated for each meter tested.

Klamath Falls N.F.H. 40 71 13-5

d. Manufacturer representative shall generate a configuration report for each meter.

3.04 ADJUSTING

A. Verify factory setup of all instruments in accordance with the Manufacturer’s instructions.

3.05 PROTECTION

1. All instruments shall be fully protected after installation and before commissioning. Replace any instruments damaged before commissioning:

a. The COR and Refuge Manager shall be the sole party responsible for determining the corrective measures

END OF SECTION