Analog Output Overrange Behavior - GMP252

GMP252 User Guide

Document code
M211897EN
Revision
D
Language
English (United States)
Product
GMP252
Document type
User guide

The analog output of the probe has a defined behavior when the values measured by the probe are outside the scaled analog output range. At first, the output is clipped when the measurement exceeds a set limit (the measurement continues, but the output does not change from the clipped value).

When the measurement exceeds the second limit (error limit), the analog output switches to the error state defined for the output.

The table below lists the clipping and error limits and default error state outputs for the analog voltage and current outputs.

Table 1. Analog Output Overrange Clipping and Error Limits
Output Voltage / Current Clipping Limit Error Limit Default Error State Output
0 ... 5 V >5 % >10 % 0 V
0 ... 10 V >1 % >10 % 0 V
0 ... 20 mA >5 % >10 % 23 mA
4 ... 20 mA >5 % >10 % 2 mA

The same clipping and error limits are applied when the measured value drops back to the scaled range: at first the output returns to the clipped value from the error state, and then to normal output.

Clipping and error state limits differ for 0 ... 10 V and 0 ... 5 V outputs. For 0 ... 10 V output the limits are 1 % and 10 %, and for 0 ... 5 V output the limits are 5 % and 10 %.
When setting the error output voltage (amode command), note that the probe's maximum voltage output is 10.325 V.