Clarke CDM80, Operating Manual

Page: 45 / 52

45
LOGIC TEST
WARNING: RISK OF ELECTROCUTION:-Do not input voltage higher than 100 Vrms
AC. It may damage the inner circuit of the meter or cause electrical shock to the user.
Be careful when testing Logic level to avoid electrc shock.
1. Rotate the probe socket clockwise to extend the probe out the front of the meter.
2. Insert the black test clip in the
COM jack.
3. Set the Mode Selector to the LOGIC range position.
4. Connect the black test clip to the GND (-) of the circuits being measured.