Unitronics Vision V130-J Series - Technical Specifications - RTD and Thermocouple Inputs; RTD Input Details and Faults; Thermocouple Input Details and Faults

Vision™PLC+HMI Installation Guide
18
Unitronics
Notes:
4. Conversion times are accumulative and depend on the total number of analog inputs configured.
For example, if only one analog input (fast mode) is configured, the conversion time will be 30ms; however,
if two analog (normal mode) and two RTD inputs are configured, the conversion time will be
100ms + 100ms + 300ms + 300ms = 800ms.
5. The analog value can indicate faults as shown below:
Value: 12-bit
Value: 14-bit
Possible Cause
-1
-1
Deviates slightly below the input range
4096
16384
Deviates slightly above the input range
32767
32767
Deviates greatly above or below the input range
RTD Inputs
RTD Type
PT100
Temperature coefficient 
0.00385/0.00392
Input range
-200 to 600C/-328 to 1100F. 1 to 320Ω.
Isolation
None
Conversion method
Voltage to frequency
Resolution
0.1C/0.1F
Conversion time
300ms minimum per channel. See Note 4 above
Input impedance
>10MΩ
Auxillary current for PT100
150μA typical
Full-scale error
±0.4%
Linearity error
±0.04%
Status indication
Yes. See Note 6
Cable length
Up to 50 meters, shielded
Notes:
6. The analog value can indicate faults as shown below:
Value
Possible Cause
32767
Sensor is not connected to input, or value exceeds permissible range
-32767
Sensor is short-circuited
Thermocouple Inputs
Input range
See Note 7
Isolation
None
Conversion method
Voltage to frequency
Resolution
0.1C/ 0.1F maximum
Conversion time
100ms minimum per channel. See Note 4 above
Input impedance
>10MΩ
Cold junction compensation
Local, automatic
Cold junction compensation error
±1.5C/±2.7F maximum
Absolute maximum rating
±0.6VDC
Full-scale error
±0.4%
Linearity error
±0.04%
Warm-up time
½ hour typically, ±1C/±1.8F repeatability
Status indication
Yes. See Note 6 above