Owner manual

Trusted
TM
Module T8433
Issue 11 Apr 10 PD-T8433 33
6. Specifications
System Supply Voltage Range 20 to 32Vdc
Number of Inputs 20 Channels
I
nput Signal Current Range (with T8833 FTA) 2 to 22 mA minimum useable
range
Safety Accuracy +/- 1% of full scale
(default threshold above which 0x70nn series slice discrepancy faults are raised)
Calibration Accuracy 0.08%
Recommended input channel calibration check interval 2 years
Channel to Channel Crosstalk -60 dB minimum
Resolution 3.9uA (1/256 mA)
Channel to Chassis Isolation
Sustained Working
Maximum Withstanding
±250V dc minimum
±2.5kV dc
Channel to Channel Isolation
Sustained Working
Maximum Withstanding
±250V dc minimum
±2.5kV dc
Insertion Voltage (with T8833 FTA) 10V dc maximum at 20 mA
Isolated Channel Signal Voltages (at field connector)
Power Input Voltage Range
Signal Input Voltage Range (for 0-25 mA)
4.5 to 8V dc
0 to -2.5V dc
Settling Time for 4-20 mA Step 90 ms to within 0.1% (see Note 2)
Frequency Response (3 dB attenuation) 7 Hz (see Note 2)
Sample Update Time 1.0 ms
User Defined Thresholds 4
Circuit Type Fault tolerant, fully triplicated
Fusing None, external if required
Intrinsic Safety External barrier
Sequence of Events
Event Resolution
Time-stamp Accuracy
1ms
±0.5 ms
Power Consumption 15 – 18W