Spectrum Controls 2085-IF4XOF4-SC, User Manual

Page: 15 / 68

Chapter 1: Module Overview 1-7
User’s Manual Pub. 0300307-01 Rev. A
Input Specifications
The 2085-IF4XOF4-SC module has the following input specifications:
Table 1-3. Input/Performance/Environmental Requirements
Input Description Specification
Number of Inputs
4 current or voltage inputs. Each channel measures either voltage
or current.
Input ranges
Current:
0 to 20 mA, 4 to 20 mA
Voltage:
0 to 5 V, 0 to 10 V, ±10 V DC
Input over voltage protection
±17 V DC continuous
Protection in current mode Current: 32 mA continuous (approximately 8 V)
Input current resolution 424 nA
Input voltage resolution
Better than 678 uV/bit (with typical resolution of 339.1 uV/bit)
for ranges of 0 to 5 V, 0 to 10 V, ±10 VDC
Current accuracy
(4 and 17 Hz filters)
Error at 25 °C, Max
Error over -20 °C to 65 °C,
Max
0-20 mA ±20 µA ±60 µA
4-20 mA ±20 µA ±60 µA
Repeatability At 25 °C
0-20 mA ±2 µA
Voltage accuracy
(4 and 17 Hz filters)
Error at 25 °C, Max
Error over -20 °C to 65 °C,
Max
0-5 V ±5 mV ±15 mV
0-10 V ±20 mV ±60 mV
±10 V ±20 mV ±60 mV
Repeatability At 25 °C
0-5 V ±500 µV
0-10 V ±2 mV
±10 V ±2 mV
Common mode voltage range ±10 V maximum per channel
Common mode rejection
Greater than 84 dB at 50 Hz and 60 Hz
Normal mode Rejection
4 Hz filter 72 dB (minimum) at 50 Hz and 60 Hz
17 Hz filter 62 dB (minimum) at 50 Hz and 60 Hz
Crosstalk
-70 dB maximum