The Load Cell Source

1-800-899-9988

690 Discovery Dr. N.W.,   Huntsville, AL      35806

National Scales' Summing Junction Box-
Model SJB

Design Features

• Quick load cell signal isolation via switching.
• Independent offset and trim adjustment.
• Quick load cell disconnect.
• Convenient signal test points.
• Switched shunt calibration resistor.
• Expansion / Option port.
• Typical excitation burden is less than 140 microamps@ 10Vdc. excitation.
• Offset adjustment (zero) range is +/- 30 mVdc.
• Typical @ 10Vdc. excitation.
• Signal trim (span) range is from 1% to approximately 50%.
• End to end resistance for excitation is less than 10 milliohms.
• End to end resistance for signal is 1 Kohm.
• Signal loss is less than 200 nanovolts (span disabled).
• Temperature coefficient less than 200 ppm per º C each circuit.

For more information, or special pricing, contact us at
sales@measurespec.com

Applications include:
Process Control, System Integration, Agricultural, Food Processing, Parts Counting, General Industrial Weighing.

• High Impact ABS sealed to IP65 (NEMA 4).
• Light grey color.
• Cover is retained by 1/4 turn captive stainless steel fasteners and sealed by continous neoprene gasket.
• Bulkhead mounting holes(1/4") are located under cover.
• Six nylon IP68 cable glands are installed which accept cable diameters from 5mm to 10mm.
• Other cable gland sizes are available.
• A diecast aluminum version is also avaiable for rough service and EMI/RFI shielding.

Check our Technical Tips for  notes on Summing Junction Box  installation, wiring, etc.

technical information  tech@measurespec.com
pricing information sales@measurespec.com
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