K4105A
side 31
Preparation for Measurement
Battery Voltage Check
T
urn on the instrument. If the display is clear without low battery symbol “
�
” showing,
battery voltage is sufficient. If the display blanks or “
�
” is indicated, replace the batteries
according to section 7 for Battery Replacement.
Connecting Test Probe
Insert the plug of the probe securely into the terminals of the instrument. Loose connection
may result in inaccurate measurements.
Operating Instructions
DANGER
The instrument will produce a maximum voltage of about 50V between terminals E-
C in earth resistance function. Take enough caution to avoid electric shock hazard.
When measuring earth voltage, do not apply voltage greater than 200V between
measuring terminals.
When measuring earth resistance, do not apply voltage between measuring
terminals.
Precise Measurement (with Test Probe M-7095)
1. Test probe connection
Stick the auxiliary earth spikes P and C into the ground deeply. They should be
aligned at an interval of 5-10m from the earthed equipment under test. Connect the
green wire to the earthed equipment under test, the yellow wire to the auxiliary
earth spike P and the red wire to the auxiliary earth spike C from terminals E, P and
C of the instrument in order.
