Spectrum Controls 1769 Series User Manual page 54

A-4 Compact™ IO Isolated Thermocouple Module
Input Description
Thermocouple Type
K (-270°C to -170°C)
Thermocouple Type
E (-220°C to 1000°C)
Thermocouple Type
E (-270°C to -220°C)
Thermocouple Types
S and R
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 CJC update time is 10 ms and sampled once every 10 seconds
Open Circuit Detection
Time
Isolation
Channel to Rack
Channel to Channel
Cable Impedance
Power Requirements
Internal rack +5 V
Internal rack +24 V
Thermal Dissipation
Distance Rating
Input Protection
User's Manual Pub. 0300244-02 Rev. A
Engineering Units ×1, Engineering Units ×10, 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
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: 550 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:
550 ms with 4.17 Hz filter (channels 0 or 5 enabled)
246 ms with 4.17 Hz filter (channels 0 and 5 disabled)
Less than 1 s
500 VDC continuous; 710 VDC for 1 minute
500 VDC continuous; 710 VDC for 1 minute
25 ohms maximum for specified accuracy
150 mA maximum (continuous)
35 mA maximum (continuous)
Less than 2 W
8
Voltage Mode ±35 VDC continuous
Value
±2.0 °C
±0.1 °C
±1.0 °C
±0.4 °C
±0.7 °C
±0.2 °C
±6.0 microvolts