Megger MPRT 8415, Руководство пользователя

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6.4.1 Checking Transducer DC IN
With the MPRT on and warmed up, from Main Menu press the Manual Tests display
button. The screen defaults to a DC IN current measurement in Milliamperes. Apply
appropriate input as indicated by the following Table to the transducer input using Multi-
calibrator. Record readings indicated on TVI. Repeat for all currents listed in the Table 1.
Table 1 Transducer DC IN Milliamperes
DC Milliamperes
Input Applied
Measured
Range Levels Tolerance UUT MIN. MAX.
20 mA
1.0
0.05% 0.9995 1.0005
10.0
0.05% 9.995 10.005
20.0
0.05% 19.990 20.01
Press the DC IN button on the Manual Voltage/Current Screen. The measurement will
change to DC Volts. Input voltage indicated by the following Table. Repeat for all
voltages listed in Table 2.
Table 2 Transducer DC IN Volts
DC Volts
Input
Applied Measured
Range Levels Tolerance UUT MIN. MAX.
10.0V 1.0 0.05% 0.99950 1.00050
5.0
0.05% 4.99750 5.00250
10.0
0.05% 9.99500 10.00500
6.4.2 Checking Battery Simulator
From TVI Main Menu select System Config button. Select Battery Simulator button and
select 24 Volts. Connect the DC Multimeter to the Battery Simulator output terminals. Set
to measure 24 Volts DC. Press the BattSim Off 24 Volt DC Button at the bottom center of
the screen. The button window will change from Green to Red indicating output on.
Repeat for all voltages listed in the TVI Battery Simulator Window.
Table 3 Battery Simulator Outputs
Battery
Simulator Tolerance Measured
UUT MIN. MAX.
24 V 10% 21.6 V 26.4 V
48 V
10%
43.2 V 52.8 V
125 V
10%
112.5 V 137.5 V
250 V
10%
225 V 275 V
.
6.4.3 Checking AC Volts / DC Volts
Connect the appropriate voltage output terminals of the MPRT to the input of the
appropriate DMM or Power Multimeter. From Main Menu press the Manual Tests display
button. Press the Voltage/Current button. Using TVI, select a voltage output channel by
pressing either V1, V2, V3 or V4. Note: The unit is modular and may not have four output
modules installed. For example, selecting V4 when there is not a 4
th
output module will
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