Spectrum Controls 1769sc-IT6I - Manual (Page 55)

Appendix A: Specifications A-3
User’s Manual Pub. 0300244-01 Rev. A
Thermocouple Type B +/- 0.7°C
Thermocouple Type C +/- 0.2°C
Millivolt Inputs +/- 6.0 microvolts
Data formats Eng units, Eng units X10, Scaled for PID, Prop. Counts, Percent of Full Scale
Input Filter 4.17 Hz, 10 Hz, 16.7 Hz, 19.6 Hz, 62 Hz and 470 Hz
Channel Update Time See Module Update Time on page 4-8
Module or Single Channel
Minimum Millivolt input: 8 ms with 470 Hz filter
Thermocouple input: 8 ms with 470 Hz filter, channels 2,3,4,5
Single Channel Max Millivolt input: 246 ms with 4.17 Hz filter
Thermocouple input: 246 ms with 4.17 Hz filter, channels 1, 2, 3, 4
Thermocouple input: 500 ms with 4.17 Hz filter, channels 0,5 during CJC measurement only
Module Max Millivolt inputs only: 246 ms with 4.17 Hz filter
Thermocouple or mixed Thermocouple/Millivolt inputs:
500 ms with 4.17 Hz filter (channels 0 or 5 enabled)
246ms with 4.17Hz filter (channels 0 and 5 disabled)
CJC Update time/intervals CJC update time is 10ms and sampled once every 10 seconds
Open Circuit Detection Time < 1s
Isolation
Channel to Rack 500 VDC Maintained, 710 VDC for 1 minute
Channel to Channel 500 VDC Maintained, 710 VDC for 1 minute
Cable Impedance 25 ohms maximum for specified accuracy
Input Protection Voltage Mode +/- 35VDC continuous
Max Current input is limited due to input impedance
Power Requirements
Internal rack +5V 150 mA maximum (continuous)
Internal rack +24V 35 mA maximum (continuous)
Thermal Dissipation < 2 W
Distance Rating 8
Fusing None