Hardware reference guide

I/O Modules
35013379 02 October 2007 537
TC Ranges Choice of:
1.0° C (default)
0.1° C
1.0° F
0.1° F
Millivolt Ranges 100 mV range, 3.05 mV (16 bits)
25 mV range, 0.76 mV (16 bits)
TC Absolute Accuracy (see Note 1)
Types J, K, E, T (see Note 2) +/- 2° C plus +/- 0.1% of reading
Types S, R, B (see Note 3) +/- 4° C plus +/- 0.1% of reading
Millivolt Absolute Accuracy
@ 25° C +/- 20 μV plus +/- 0.1% of reading
Accuracy Drift w /Temperature 0.15 μV / °C plus 0.0015% of reading / °C max
Operating Voltage
Channel to Channel 220 Vac @ 47 ... 63 Hz or 300 Vdc max
Isolation
Channel to Bus 1780 Vac @ 47 ... 63 Hz or 2500 Vdc for 1 minute
Update Time 1 s (all channels)
Fault Detection 8 red LEDs to indicate out of range or broken wire
conditions
Bus Current Required 280 mA
Power Dissipation 1.5 W
External Power Not required for this module
Note:
1. Absolute accuracy includes all errors from the internal CJC, TC – curvature,
offset plus gain, for module temperature of 0 ... 60° C. User supplied TC errors
not included.
2. For Type J and K, add 1.5° C inaccuracy for temperatures below -100° C.
3. Type B cannot be used below 130° C.
4. All TC ranges have an open TC detect and upscale output. This results in a
reading of 7FFFh or 32767 decimal when an open TC is detected.
Specifications
This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com