C) Alternating Voltage Detection; D) Direct Voltage Test (1.2 To 35 Vdc) - VOLTCRAFT MS 18-2 Operating Instructions Manual

c) Alternating voltage detection

Direct contact (70 to 250 V alternating voltage)
1
Touch the electric conductor (phase) with the measuring tip (1). If the LED (2) lights up, there is voltage.
During this test the battery compartment lid must not be touched with the finger.
Indirect contact (70 to 500 V alternating voltage)
2
During this test the tip of the tester must not touch the tested line (device) directly.
Please note that the LED (2) only goes out after approx. 0.5 to 2 seconds after removing the device from
the voltage because of the temporary memory function.
Guide the measuring tip of the MS18-2 along an electric cable, electrical outlet or
the device.
If there is voltage, (plug in socket, device switched on, etc.) the LED (2) starts blink-
ing. In this way e.g., interruptions in cables etc. can be detected simply and quickly.
To increase the sensitivity, the battery compartment lid can be touched with the finger.
This test can not be carried out with shielded cables.
To carry out a quick test on electrical outlets, power supply units or PVC insulated
cables hold the MS18-2 on the measuring tip (1) and guide the grip near the device
to be tested.
If there is voltage, the LED (2) will start blinking.

d) Direct voltage test (1.2 to 35 VDC)

With this function the MS18-2 identifies the polarity of direct voltage sources such as batteries, rechargeable batteries,
etc. Touch the pole of the battery to be tested with one finger. Touch the other pole of the battery with the measuring
tip (1) (touch battery compartment lid).
If the LED (2) starts to light up or blink, the pole with which the measuring tip is connected, is the positive pole. If the
LED stays dark, touch the minus pole.
„+" Pole, LED light up or blink
16
„-" Pole, LED dark