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B873-002 and B875-002 Specifications
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(Original Document)
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B873-002 and B875-002 Specifications
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(Original Document)
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Description
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Analog input
4 - 20 mA, 1 - 5 Vdc
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Number of Channels
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4, (B873-002)
8, (B875-002)
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Operating Range
Voltage/Current
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1 - 5 Vdc / 4 - 20 mA
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Impedance
Voltage
Current
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0.5 MΩ per input
1 MΩ differentially
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Resolution
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12 bit
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Filter
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-3 dB @ 18 Hz
Rolloff -20 dB per decade
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Linearity
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+.05% of full scale @ 25 °C (77 °F)
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Protection
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240 Vac RMS
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Common Mode
Range
Rejection
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0 Vac to 30 Vac RMS
> -86 dB @ 60 Hz
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Isolation
Channel to Channel
Input to Case
Module
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250 Vac RMS
500 Vac RMS for one minute
1500 Vac RMS for one minute
300 Vac RMS continuous
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Accuracy
Overall
At 25 °C (77 °F)
Offset Drift
Gain Drift
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7 mV or 19.7 μA
+/-0.488 mV or +/-1.95 μA @ 1.2207 mV
+/-30 μV or +/-0.12 μA per °C
+/-16.7 μV or +/-0.07 μA per °F
+/-15 ppm per °C
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Repeatability
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Over a twenty-four hour period, with a constant voltage and at a constant operating temperature, the input data value will be within +/-2 counts.
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Power Required
+5 V
+4.3 V
-5 V
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300 mA
300 mA
0 mA
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Data Format
0000
4095
0000 to 4095
4096 to 8191
4096
8192
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Power Up
On diagnostic failure or during failure recovery
Under range - standard
Under range - elevated
Valid - standard range
Valid - elevated range
Over range - standard
Over range - elevated
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Throughput Rates
Update Interval
Out of Range
Terminal Connector
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4 channels 400 ms
8 channels 710 ms
(Including diagnostics)
220 ms for each channel in under or over range condition (Refer to throughput section)
AS-8533-001 (B873-002)
AS-8533-002 (B875-002)
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Reference Type
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B873-002 Mapped as 4 registers input 3x
B875-002 Mapped as 8 registers input 3x
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Input Type
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BIN/BCD
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