User`s guide
Using U8480 Series USB Power Sensors 8
N1913A/1914A EPM Series Power Meters User’s Guide User’s Guide 187
Calibrating
The N1913/1914A EPM Series power meters are able to perform 
calibration for the U8480 USB thermocouple sensor via the front panel 
and SCPI. The N1913/1914A EPM Series power meters also support auto 
calibration (Auto Cal) for the U8480 USB thermocouple sensor. Both 
internal (Int) and external (Ext) calibration is supported by the 
N1913/1914A EPM Series power meters. 
Figure 8-6 Calibration type
The Auto Cal state is determined by the state of the calibration type as 
shown in Figure 8- 6. If the calibration type is set to Int, you will be able 
to toggle between On and Off under the Auto Cal state. If the calibration 
type is set to Ext, the Auto Cal state will be set to Off and the softkey will 
be greyed out. 
When calibration is performed via the front panel or SCPI, the following 
message will appear:










