Spectrum Controls 1746sc-INO4vi - Manual (Page 13)

Chapter 1: Overview And Specifications 3
Table 3. Electrical specifications—outputs
Output Current Ranges
(selectable for each channel)
4 to 20 mA
0 to 20 mA
0 to 21 mA
Output Voltage Ranges—INO4vi only
(selectable for each channel)
-10 to +10 Vdc
0 to 10 Vdc
0 to 5 Vdc
1 to 5 Vdc
SLC Communication Formats
(selectable for each channel)
Scaled engineering units
Scaled for PID
Proportional counts
1746-NO4 format
User-defined scale
Output Impedance
Current Outputs Greater than 1 M
Ω
Voltage Outputs—INO4vi only Less than 1.0
Ω
Load Range
Current Outputs 0 to 500
Ω
Voltage Outputs—INO4vi only 1 k
Ω
and greater
Max. Current, Voltage Mode—INI4vi only 10 mA
Output Step Response Time 1 ms (0–95% of full scale)
Channel Update Time (maximum) 33.7 ms for all 4 channels in parallel
Output Resolution 16-bit
Current Outputs 366 nA/count
Voltage Outputs—INO4vi only 320
µ
V/count
Overall Accuracy
Current Outputs 0.08% of full scale @ 25
°
C
0.15% of full scale @ 60
°
C
Voltage Outputs—INO4vi only 0.08% of full scale @ 25
°
C
0.35% of full scale @ 60
°
C
Table 4. Physical specifications
LED Indicators Four green channel status indicators, one for each channel
One green module status indicator
Recommended Cable Belden 8761 (shielded, twisted-pair) or equivalent
Wire Size (maximum) One 12–24 AWG wire per terminal
Terminal Block Removable (supplied)