Vaisala HMT100 - Manual (Page 40)

User's Guide ______________________________________________________________________
40 __________________________________________________________________ M210701EN-D
Analog Output Tests
HMT100 has a built-in software function for testing the analog outputs.
To test the outputs, do the following:
1. Make sure the transmitter is not in adjustment mode.
2. Press the 75 % adjustment button (see Figure 13 on page 28).
This sets the output current/voltage level to the middle point of the
selected output range (specified when ordering the product). The
output stays at this level for about 30 seconds after the 75 %
adjustment button has been pressed.
Examples:
If you have specified 4 ... 20 mA analog output range, pressing the 75 %
adjustment button will set the current output at 12.0 mA for about 30
seconds.
For analog output range 0 … 1 V, pressing the 75 % adjustment button
will set the voltage output at 0.5 V for about 30 seconds.