HT F3000U, Руководство пользователя

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NEPTUNE
EN - 17
5.6. MEASUREMENT OF INSULATION RESISTANCE
This function is performed in compliance with standard IEC/EN61557-2 and allows
measuring insulation resistance in electric installations and industrial applications where it
is necessary to carry out duration tests (see § 9.2). The following operating modes are
available:

AUTO the test continues until a stable result is obtained (minimum duration 3s, max
15s) or until key GO/HOLD is pressed. Recommended mode

TMR the test is carried out in a continuous mode for the duration (timer) set, among
the values: 15s, 30s, 1min, 5min, 10min

PI the test is carried out in a continuous mode for the duration (timer) set, among
the values:
1min,10min . If the set time is 1min , the instrument will display the
value of parameter DAR (Dielectric Absorption Ratio) (see § 9.2.2).
1min,10min . If the set time is 10min , the instrument will display the value of
parameter PI (Polarization Index) (see § 9.2.1).
AUTO mode
CAUTION

Check that the circuit being tested is not live and that all possible loads
normally connected to it are disconnected before carrying out insulation
measurement.

We recommend holding the alligator clip respecting the safety area created
by the hand protection.
Fig. 15: Use of the instrument for insulation resistance measurement in AUTO mode
1. Select position M

2. Press key MODE/MXMNPK and select option
“
AUTO
”
3. Press key V
TEST
/LIM to set the test voltage choosing among the values: 50V, 100V,
250V, 500V, 1000VDC. Please note the value in the top part of the display.
4. Press and hold key V
TEST
/LIM (>2s) to set the minimum limit threshold for
measurement. The symbol
“
Set
”
flashes on the display.