PeakTech 1090 Mode D'emploi page 33

Voltage measurement with low internal impedance (P 1090)
This function is particularly useful for testing installations. Due to
the lowered internal impedance.
Capacitive voltage is suppressed. The reading shows the actual
voltage applied. Similarly, measuring phase "L1" on earth wire
"PE" may trigger fault-current circuit breakers (FI or RCI). This
measuring procedure can be used for measurements above 12V.
Always hold the voltage tester by the handles designed for this
purpose. Never touch the device beyond the handle ends.
Hold the two test tips onto the measuring points to be tested.
Press the two push-buttons and simultaneously. The applied
voltage is shown on the LCD display. The Low-Imp LED signals
low impedance measurement.
Caution!
The maximum permitted duty cycle in low impedance operating
mode is 5 seconds for voltage up to 250 V and 3 seconds for
voltages up to 690V. When this time has lapsed, wait for
10 minutes.
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