7.2.2 Measurement with interval mode for HRT
The heat run timer must be started the moment
that the heat source is switched off from the test
object.
Press the “Timer” Button on the main screen to
start the timer.
The timer starts running.
The timer can be halted, at any time, by
pressing the button a second time.
Note:
The test current is NOT switched on at
this time.
After starting the timer, disconnect the power
cables or heat source of the test object and
connect the measurement cables of the
instrument.
Measurement results should be obtained as
quickly as possible.
After the measuring cables are attached to the
transformer windings, press “START” to start
the measurement.
The current is applied and the system charges
the transformer winding(s) to be measured.
Instruction Manual Winding Resistance Meter
Type WR100 / WR50 / WR14
Page 81 of 139
