DV Power RMO30T, Руководство пользователя

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RMO30T Getting Started
When the test is finished either because selected time has expired or the
STOP
button is pressed,
the RMO30T switches to the Res menu and starts current discharging process. During current
discharging, the discharging LED lights and the alarm beeps.
Discharge is completed when LED discharge and the buzzer are OFF. Also, during that period
“Discharging” message is shown on the display. During discharging process it is not possible to
start another measurement.
Once the test is completed the last measured result will remain registered at a selected memory location
(00-99 memory locations).
Discharge Current
The voltage at the RMO30T output generation is immediately stopped, but current still flows, because of
the inductivity of test objects.
Because of the enormous amount of energy that can be stored in a magnetic field, precautions should
be taken before disconnecting the test leads from the transformer that is under test. Never remove the
leads during the testing process and always allow enough time for the transformer being tested to
completely discharge. Large transformers can require several minutes to discharge.
C A U T I O N
ƒ DO NOT DISCONNECT LEADS BEFORE “DISCHARGING” MESSAGE IS DISAPPEARED
FROM THE DISPLAY.
Note:
Using RMOWin-T5 the results could be stored to a PC, where reading interval results is adjustable.
Results will be shown in a table in Excel format with an option to perform additional edit and graphic
presentation.
Using RMOWin-T5 after the test in order to transfer the results from selected internal memory location to
a PC will allow transfer of the last test result only.
Measurement parameters
Typical accuracy given in the table below is valid if the maximum possible current is used.
Range Test
Current
Nominal
Resistance
Full Range
Display
Resolution
1 30A 1m Ω 999,9µ Ω 0,1µ Ω
2 30A 10m Ω 9,999m Ω 1µ Ω
3 30A 100m Ω 99,99m Ω 10µ Ω
4 30A 250m Ω 250,0m Ω 0,1m Ω
5 30A 750m Ω 750,0m Ω 0,1m Ω
6 20A 1,25 Ω 1,250 Ω 1m Ω
7 10A 2,5 Ω 2,500 Ω 1m Ω
8 5A 5 Ω 5,000m Ω 1m Ω
9 2A 10 Ω 9,999 Ω 1m Ω
10 1A 15 Ω 15,00 Ω 10m Ω
11 500mA 25 Ω 25,00 Ω 10m Ω
12 100mA 100 Ω 99,99 Ω 10m Ω
13 50mA 200 Ω 199,9 Ω 0,1 Ω
14 10mA 1k Ω 999,9 Ω 0,1 Ω
15 5mA 2k Ω 2000 Ω 1 Ω
The highest resolution of the reading is always displayed; resistance range selection is performed
automatically and therefore is not necessary to be set by the operator.
Figure 6-7:
The
Res menu
showing the test results