2. Edit reference 
temperature 
Use the Left/Right key to move the 
cursor, and use the Up/Down key to 
change the value. 
Default: 23.00 
Press the Enter key to confirm the 
value, or the Exit key to cancel. The 
display goes back to the previous 
menu. 
Select Temperature Sensor Type 
 
The GDM-8261A supports a number of  thermocouple 
types as well as 2 or 4 wire RTD. It is important to 
specify the type of  temperature sensor used.   
1. Open sensor 
selection menu 
Press the Shift key, then the TEMP 
(Sensor) key. The sensor selection 
menu appears on the display. 
Press the Left and Right arrow keys 
to highlight the 2WRTD or 4WRTD 
sensor type. Press the down key to 
go to the next menu level. 
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