Instrument Operation; Function Selection - METREL MI 3122 Instruction Manual

MI 3122 Smartec Z Line-Loop / RCD

4 Instrument operation

4.1 Function selection

For selecting test function the FUNCTION SELECTOR shall be used.
Keys:
Select test / measurement function:
FUNCTION
SELECTOR
Selects sub-function in selected measurement function.
UP/DOWN
Selects the test parameter to be set or modified.
TAB
Runs selected test / measurement function.
TEST
Stores measured results / recalls stored results.
MEM
Keys in test parameter field:
UP/DOWN
TAB
FUNCTION SELECTOR
MEM
General rule regarding enabling parameters for evaluation of measurement / test result:
OFF
Parameter
ON
See Chapter 5 for more information about the operation of the instrument test functions.
<VOLTAGE TRMS> Voltage and frequency and phase sequence.

<Z-LINE> Line impedance.

<Z-LOOP> Fault loop impedance.

<RCD> RCD testing.

<SETTINGS> General settings.

Changes the selected parameter.
Selects the next measuring parameter.
Toggles between the main functions.
Stores measured results / recalls stored results.
No limit values.
Value(s) – results will be marked as PASS or FAIL in
accordance with selected limit.
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Function selection