User`s guide
Using N8480 Series Power Sensors 6
N1913/1914A EPM Series Power Meters User’s Guide 155
Procedure
1 Ensure that the power sensor is disconnected from any signal source.
2 Refer to the connection requirements in Table 6- 2 and ensure that the 
sensor is ready for connection to the POWER REF.
3 Check the current reference calibration factor setting by pressing 
,
 ,  . The value is displayed under the channel 
 softkey. 
Does this setting match the value for the sensor? (The power sensor 
reference calibration factor can normally be found above the calibration 
factors table on the power sensor body.)
4 To change the settings, press the channel  . The reference 
calibration factor pop up window is displayed as shown in Figure 6- 5. 
Use the numeric keypad to enter the required value in the Ref Cal Factor 
pop- up menu.
Figure 6-5 Reference calibration factor pop-up window
5 Press 
 to complete the entry.
Now, zero and calibrate the power meter/sensor combination as follows:
6 Press   and the channel   softkey. The Zeroing pop- up is 
displayed. 
7 Connect the power sensor to the POWER REF output.
8 Press   and the channel   softkey to start the calibration 
routine. The Calibrating pop- up is then displayed.
1 of 2
REF CFs
Ref CF
REF CF
%
Zero
Cal










