User Manual - Rev AV    AMETEK Programmable Power 
MX Series    243 
9.10 Option –WHM: Watt Hour Measurement 
9.10.1 General 
This section describes the WHM option available for the MX Series Power Source. 
9.10.2 Specification 
All specifications are the same as the standard MX Power Source specifications in addition to the 
following specifications: 
Watt-hour 
0-6.000KW    0.2%FS +0.1%R  <100 Hz 
   0.5%FS +0.1%R 100-819 Hz 
>6.000KW    Times three of the above specification 
9.10.3 Local Operation 
x  From the Menu screen 2, select the APPLICATIONS SETUP 2 screen. The screen will appear 
as shown in Figure 9-43.  Use the up and down key to position the cursor to the WH METER 
field.  Press the Enter Key. 
 
Figure 9-43: Application Screen 
 
x  The WATT-HOUR METER screen shown in Figure 9-44 has the following fields: 
 
Figure 9-44: Watt-Hour Meter Screen 
1.  START:  This field will activate the watt-hour measurements.  Moving the shuttle clockwise when the 
field is highlighted will activate the watt-hour function and the field will change to STOP as shown in 
Figure . 
2.  ETIME:  This field will accumulate the time in hours, minutes and seconds. 
3.  WATT HR: This field will accumulate the watt-hour in KWH. 
4.  POWER:  This field will report the instantaneous power in KW. 
5.  PK CURR: This field will report the peak current and will hold the maximum reading. 
 
Figure 9-45: WH-Meter Screen with Function Active