|
B875–200 Configurable A/D Input, Specifications
|
|
|
(Original Document)
|
|
B875–200 Configurable A/D Input, Specifications
|
|
|
(Original Document)
|
|
B875-200 Specifications
|
||
|---|---|---|
|
Analog Channels
|
B873-200 in I/O Map
|
Four
|
|
B875-200 in I/O Map
|
Eight
|
|
|
Voltage Range
|
Varies with selected input pack
|
|
|
Current Range
|
||
|
Thermocouple Types
|
||
|
RTD Types
|
||
|
Strain Gauge/Load Cell Types
|
||
|
Input Filter
|
Three pole or more low pass, with -3dB cut-off frequency of 4 Hz, 10% on low-band units, 10 kHz 10% on wide bandwidth units
|
|
|
Input Resistance
|
Current Mode
|
20 Ω
|
|
Voltage Mode
|
Refer to voltage mode table, below
|
|
|
Input Protection Normal Mode
|
All input packs can withstand 240 V RMS without damage, however, the fusible resistor used with the current input packs will be destroyed by overcurrent conditions
|
|
|
Note: Input over range or under range on an input pack will not produce reading errors on adjacent channels in excess of 1 count.
|
||
|
Common Mode
|
Each input pack can withstand 1500 V RMS
|
|
|
Rejection
|
In excess of 140 dB for all input packs except AS–5B40 and AS–5B41 which are 80 dB
|
|
|
Input Isolation
|
Input to OURBUS
|
1500 Vac RMS or 2500 Vdc for 1 minute
|
|
Input to Case
|
1500 Vac RMS or 2500 Vdc for 1 minute
|
|
|
Input to Input
|
1500 Vac RMS or 2500 Vdc for 1 minute
|
|
|
Conversion Resolution
|
12 bits all ranges
|
|
|
Out of Range Data
|
Four counts above and below range
|
|
|
Out of Range Error (flags)
|
Refer to out-of-range error table, below.
|
|
|
Out of Range Error (Flags)
 |
||
|
Input Averaging
|
Options are 0, 2, or 4 samples
|
|
|
Throughput
|
1.7 ms typical for 4 channels, 4 ms for eight channels maximum
|
|
|
Power Required
|
+5 V
|
550 mA
|
|
+4.3 V
|
10 mA
|
|
|
-5 V
|
0 mA
|
|
|
Terminal Connector
|
AS–8535–000
|
|
|
Reference Type
|
Mapped as 8 registers input 3x
|
|
|
Input Type
|
BIN/BCD
|
|
|
Pack Number
|
In Range
|
Power Off and/or Over Range
|
|---|---|---|
|
AS–5B30
|
5 MΩ
|
40 kΩ
|
|
AS–5B31
|
650 kΩ
|
650 kΩ
|
|
AS–5B40
|
200 MΩ
|
40 kΩ
|
|
AS–5B41
|
650 kΩ
|
650 kΩ
|
|
Data Flagged
|
Description
|
|---|---|
|
Not Ready
|
Bit 14 set high (4000 Hex)
|
|
Over Range
|
Bit 15 set high (800x Hex, x=1—4 bits over range)
|
|
Under Range
|
Bits 14 and 15 set high (c00xHex, x=1—4 bits under range)
|
|
Normal Data
|
Bits 14 and 15 are low, normal data range is 0—4095 (0—1FFF Hex)
|
|
Input Pack
|
Calibration Accuracy at 25°C
|
*Accuracy Over Temp 0—60°C
|
Nonlinearity
|
Gain Drift***
|
Offset Drift***
|
|---|---|---|---|---|---|
|
AS–5B30
AS–5B40
Unipolar
|
0.15
|
0.73
|
0.05
|
.007%/°C
|
.008%/°C
|
|
Bipolar
|
0.20
|
0.78
|
0.05
|
.007%/°C
|
.008%/°C
|
|
AS–5B31
AS–5B41
Unipolar
|
0.15
|
0.62
|
0.05
|
.01%/°C
|
.002%/°C
|
|
Bipolar
|
0.20
|
0.67
|
0.05
|
.01%/°C
|
.002%/°C
|
|
AS–5B32
|
0.25
|
0.70
|
0.05
|
.01%/°C
|
.001%/°C
|
|
AS–5B47
|
0.1 1°C**
|
0.4 2°C
|
0.05
|
.007%/°C
|
1 V%/°C typ
|
|
AS–5B38
|
0.15
|
0.80
|
0.05
|
.010%/°C
|
1 V%/°C typ
|
|
AS–5B34
|
0.15
|
2.0
|
0.05
|
.01%/°C
|
.04%/°C
|
|
Unless noted all entries are% of full scale.
|
|||||
|
*Accuracy = Calibration + gain drift + offset + non linearity for the range 0—60°C ambient.
|
|||||
|
**Calibration accuracy for types J, K, T. For types R & S = 4°C. For type B = 6°C.
|
|||||
|
***Both gain and offset drift are from 25°C.
|
|||||
