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B872-100 Specifications
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(Original Document)
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B872-100 Specifications
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(Original Document)
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Description
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Analog output D/A; 4 - 20 mA
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Number of Points
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4
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Operating Range
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4 - 20 mA
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Maximum Loop Supply Voltage
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60 Vdc
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Allowable Resistance Range*
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Minimum
and
Maximum
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Rmin = VLoop** - 30 V 0.02 A
Rmax = VLoop** - 7 V 0.02 A
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*Resistance is the sum of all components, including wiring, in the field side circuit.
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**VLoop equals the voltage of the loop supply (not to exceed 60 Vdc). If voltage is <30 Vdc, then the minimum loop resistance is 0 Ω. Refer to the Calibration Procedure (Method 2)
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Voltage Drop @ 20 mA
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Minimum
Maximum
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7 Vdc
30 Vdc
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Response Time to Within +/_0.1% of Full Range
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35 mS, all four channels
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Valid Data Values
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0 thru 4095, or offset 4096-8191
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Resolution
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1 part in 4096 counts
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Monitor Output Voltage
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Range
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1 to 5 Vdc
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Min Load
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1 MΩ
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Impedance
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470 Ω, typical
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Accuracy***
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Output Errors @ 25 °C (77 °F)
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Overall
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+/-0.1% @ 25 °C absolute
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Nonlinearity
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+/-0.024%
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Differential Nonlinearity
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+/-0.036%
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*** All percentages are of full range.
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Output Isolation
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Output to OURBUS
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1500 Vac or 2500 Vdc for 1 minute
500 Vac or 500 Vdc continuous operation
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Channel to Channel
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1500 Vac or 2500 Vdc for 1 minute
500 Vac or 500 Vdc continuous operation
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Conversion
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Resolution
Update Time
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12-bits (1 part in 4096
The module can accept new data every 1 mS for a 4 channel update)
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Settling Time
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Within +/-0.1%, < 350mS
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Linearity
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0 to 60 °C, +/- 1 LSB maximum
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Differential Nonlinearity
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0 to 60 °C, +/- 1.5 LSB maximum
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Load Inductance
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1 Henry max, with no external diode suppression
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Power Required
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+5 V
+4.3 V
-5 V
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475 mA
5 mA
0 mA
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Terminal Connector
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AS-8535-000
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Reference Type
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Mapped as 4 registers output 4x
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Output Type
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BIN/BCD
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