DV Power RMO100G, Руководство пользователя

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13
RMO100G Getting started
Define a test current through the circuit breaker (here
200A
) and memory position (here
Memory: 012
).
Once these parameters are defined, press
ENTER
to change to the Ready state.
Press the
START
button to run a test. Upon completed test at selected memory location the measured
result will remain registered. It is the current through circuit breaker (difference between total test current
and current through current clamp meter), contact resistance of circuit breaker and the time when test is
performed. When defined test current could not be reached, RMO100G displays maximum possible
reached current.
The accuracy of measured resistance in this menu is lower then accuracy in
Single or Contin menu due
to accuracy of current clamp meter.
Connecting of current clamp meter
Connect cables of the current clamp meter to the appropriate input terminals of device. By pressing the
side button open the current clamp meters jaws and clamp one conductor only. The jaw must be firmly
closed around the conductor. Make sure that conductor is passed through middle of
the hole of current
clamp meter. Make sure that the angle is 90 degrees between central axis of conductor and plane of
hole of current clamp meter. The red LED light continuously indicates that current clamp meter works
correctly. In case that red LED is blinking it is necessary to change the battery. Select current range of
1000A
. The current clamp meter is ready to use .
6.5 Measurement parameters
Accuracy given in the table is valid if the maximum possible current is used.
Range Recommended
Test Current
Nominal
Resistance
Full Range
Display
Resolution Typical accuracy
1 100 A 1
mΩ 999,9 µΩ 0,1 µΩ
± 0,1 % rdg ± 0,1 % FS
2 100 A
10 mΩ 9999 µΩ 1 µΩ
± 0,1 % rdg ± 0,1 % FS
3 50 A - 100 A
50 mΩ 50,00 mΩ 10 µΩ
± 0,1 % rdg ± 0,1 % FS
4 20 A - 50 A
100 mΩ 99,99 mΩ 10 µΩ
± 0,1 % rdg ± 0,1 % FS
5 10 A - 20 A
250 mΩ 250,0 mΩ 0,1 mΩ
± 0,1 % rdg ± 0,1 % FS
6 5 A - 10 A
500 mΩ 500,0 mΩ 0,1 mΩ
± 0,1 % rdg ± 0,1 % FS
7 5 A
1 Ω 999,9 mΩ 0,1 mΩ
± 0,1 % rdg ± 0,1 % FS
6.6 Viewing the Test Results
Once a Single or CC test is finished, RMO100G automatically changes to the Result menu to display the
test results.
For Continuous Test only the last performed test is shown.
Note:
If the defined test current could not be reached, this could be due to a too high contact
resistance of the test object and/or of the current cables.
The test current value displayed here is the maximum test current reached.
The
Result menu is displayed for 12 seconds and automatically goes back to the start menu.
Figure 6-9:
The
Ready state