Hardy HI 1756-nDF - Manual (Page 10)

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Chapter 2
HI 1756 1DF 1 Weigh Scale Channel
HI 1756 2DF 2 Weigh Scale Channels
Update Rate
95(10.5ms) or 145(6.9ms) Updates per Second
Averages
1-255 User-selectable in Single Increments
WAVERSAVER®
User Selectable
OFF
7.50 Hz
3.50 Hz
1.00 Hz (Default)
0.50 Hz
0.25 Hz
Digital Voltmeter (Integrated Technician – Diagnostic Mode Only)
Accuracy ± 2% of full scale
Relay
Two integrated solid state DC or AC relays per weigh scale channel
Default state of relays will be OPEN (Form A - NO).
For resistive loads only. Cannot mix AC and DC relays on same module.
DC Relay
Capable of switching 5 to 30 VDC
Maximum current rating 3A @ 25
o C, 2A @ 40 o C, and 1A @ 60 o C
Minimum load current 2mA
AC Relay
Capable of switching 24-280 (47-63Hz) VAC
Maximum current rating 0.5A @ 60
o C
Minimum load current 70mA
Environmental Requirements
Operating Temperature Range
0 to 60º C (32º F to 140º F)
Temperature Coefficient
Less than 0.005% of full scale per degree C for Cal-LO and Cal-HI reference points
Storage Temperature Range
-40 to 85º C (-40 to 185º F)
Humidity Range
0-90% (non-condensing)
Pending Approvals
UL, CUL, and CE