Hardy Process Solutions HI 1769-WS, Operation And Installation Manual

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HI 1769-WS/HI 1769-2WS WEIGH SCALE MODULE
2-2
Common-Mode
Voltage Range
2.5VDC maximum (with respect to earth ground)
Bus Input Voltage
5 VDC
Bus Current Load
<0.5 Amp at 5 VDC
Bus Power Load
< 5W at 5 VDC
C2 Calibration
Input
Isolation from digital section 1000 VDC minimum.
Cable lengths
500 feet maximum of C2 authorized cable
250 feet maximum of C2 authorized cable (Maximum
of 4 load sensors) with IT Junction box.
Load Cell
Excitation
5 VDC
C2 Calibration
Output
Isolation from digital section 1000 VDC minimum
Environmental
Requirements
Temperature
Coefficient
Less than 0.005% of full scale per degree C for Cal-
LO and Cal-HI reference points
Operating
Temperature
Range
0
o
C to 60
o
C (32
o
F to 140
o
F)
Storage
Temperature
Range
-40
o
C to 85
o
C (-40
o
F to 185
o
F)
Humidity Range
0-95% (non-condensing)
Approvals
CE, UL/CUL, Class I, Division 2 Groups A, B, C, D
Temperature Code T5
Digital Voltmeter
Accuracy 10% of full scale
Resolution
• mV/V 4 digits to the right of the decimal