Load_Cell_Specifications.pdf

LOAD CELLS SPECIFICATIONS

ACCURACY

PARAMETER 1K LBF 5K LBF; 10K LBF 25K LBF; 50K LBF 100K LBF

Static error band % R. O. ±0.02 ±0.03 ±0.03 ±0.03

Non linearity, % R. O. ±0.02 ±0.03 ±0.03 ±0.03

Hysteresis, % R. O. ±0.02 ±0.04 ±0.04 ±0.04

Non-repeatability, % R. O. ±0.005 ±0.005 ±0.005 ±0.005

Creep % reading in 20 min ±0.015 ±0.015 ±0.015 ±0.015

Off-center load sensitivity, % / inch

±0.05 ±0.05 ±0.05 ±0.05

Side Load sensitivity, % ±0.05 ±0.05 ±0.05 ±0.05

Zero balance, % R. O. ±1.0 ±1.0 ±1.0 ±1.0

TEMPERATURE

PARAMETER 1K LBF 5K LBF; 10K LBF 25K LBF; 50K LBF 100K LBF

Range compensated, °F +15 to +115 +15 to +115 +15 to +115 +15 to +115

Range operating, °F -65 to +115 -65 to +115 -65 to +115 -65 to +115

Effect on sensitivity, % Rdg/100 °F

0.08 0.08 0.08 0.08

Effect on Zero, % R.O./100 °F 0.08 0.08 0.08 0.08

ELECTRICAL

Excitation Voltage Recommended, Vdc

10 10 10 10

Input resistance, Ohms 350 +40/-2.5 350 +40/-2.5 350 +40/-2.5 350 +40/-2.5

Output resistance, Ohms 350 ±3.5 350 ±3.5 350 ±3.5 350 ±3.5

Sensitivity (Rated output), mV/V Nominal

2 2 2 2

Insulation reisist, Bridge/Case, Meg Ohms

500@ 50 Vdc 500@ 50 Vdc 500@ 50 Vdc 500@ 50 Vdc

MECHANICAL

Safe overload range, % R.O. 150 150 150 150

Weight, lbs 1.3 3.3 11.1 28.7

Weight w/base, lbs 2.8 6.9 23.6 57.8

Flexure material Aluminum Steel Steel Steel

Load Cell Components

Ball Clips:

5/8” Thread – 18 Ball Clip

1 ¼” Thread – 12 Ball Clip

1 ¾” Thread – 12 Ball Clip

Alignment Plugs:

5/8” Thread – 18 Alignment Plug

1 ¼” Thread – 12 Alignment Plug

1 ¾” Thread – 12 Alignment Plug

Load Ball Adapters:

3/8” Thread Load Ball Adapters

5/8” Thread Load Ball Adapters

7/8” Thread Load Ball Adapters

Load Cell Alignment Block:

Base diameter 5” / Height 1 ½”

Instrument Cases:

Required instrument cases for the load cells must be black in color, constructed using hardened plastic, with foam customized inserts, and waterproof type construction.

One (1) Case shall have the ability to contain one (1) 1K and one (1) 5K Load Cell

One (1) Case shall have the ability to contain one (1) 10K and one (1) 25K Load Cell

One (1) Case shall have the ability to contain one (1) 50K and one (1) 100K Load Cell

One (1) Case shall have the ability to contain one (1) load cell meter, load cell controller and applicable

RS232 communications cable.

Load Cell Meter / Load Cell Controller with RS232 Communications Cable

Transducer Interface

Excitation 5VDC or 10 VDC software/auto selectable

Current Drive 180 mA at 5VDC or 10 VDC

Push Button Shunt Yes

Internal Shunt Resistor 1 standard. Rear panel selectable

Calibration Method Shunt, mV/V, Known Load

Push Button Tare 100% of range--display and analog output

Sensitivity Adjust 1mV/V to 4.5 mV/V

Accuracy 0.01% of full scale +/- 1 digital count

CMRR 115 dB

D/A Analog Output

Full Scale Output +/- 10 VDC nominal +/- 0.5 VDC

Linearity 0.02 % of full scale

Scaling Gain and offset selected by software.

Frequency Response Approx. 15 Hz (plus filtering)

Output Source Any displayed quantity

Output Channels 1 std, 2 optional

Direct Analog Output

Full Scale Output -/+ 8.14 VDC +/- 0.25 VDC

Linearity 0.02 % of full scale

Scaling Fixed with no tare, transducer channel only

Frequency Response Approx. 1.5 kHz

Peak/Hold

Peak/Valley/Hold Digital 1/60 second capture

Digital I/O

Digital Inputs

Interface 4 optically isolated inputs

Function remote tare, peak/valley reset, position reset, print

Digital Outputs

Function 4 independent limits

Quad-Limits Setup Front panel, latching or non-latching set points normally open/closed, enable/disable

Quad-Limits Output 4 isolated solid state switches

Quad-Limits Source Any displayed quantity

Serial Interface

RS-232 Serial Setup/Output Standard

RS-485 Serial Setup/Output

Encoder Position Channel Optional

Encoder Type Quadrature, 4X number of lines

Excitation 12 VDC std., 5 VDC optional

Interface Single ended or differential

Calibration User adjustable counts/inch

Auto Transducer Identification

Auto Identification and Setup Yes, standard

Push Buttons

Smart Push Buttons 6

Adjustments Displayed item, displayed units, tare, peak/valley reset alternate view, print. Alternate functions for programming.

Digital Display

Display Characters 2 lines by 20 characters

Display Update > 4/Sec

Scaling Automatic or manual

Maximum Display Count ± 999,999

Decimal Points. Selection 0 to 5 software selectable.

Display Type Vacuum fluorescent

Resolution 24 bit

Software Filters 8, software selectable

Electrical Characteristics

Power Requirements 110 VAC, 60 Hz, Optional 220VAC, 50 Hz

Power Consumption 12 W (unloaded)

Transducer Excitation Current Shutdown mode when shorted to ground

Absolute Max Transducer Input 30 VDC without damage

Physical Characteristics

Package Size 10.0” X 3.0 “ X 10.5” (W X H X D)

Case Material Aluminum

Mounting Hardware Available

Environmental

Operating Temp 0 C to 50 C

Storage Temp -10 C to 60 C

Relative Humidity 95 % without condensation