Spectrum Controls 1769 Series User Manual page 55

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