RESISTANCE MEASUREMENT WITH BUZZER
Ensure circuit is not live by taking a voltage measurement
Set rotary switch to
)))
range. Insert red test lead in
V
Ω
and
black lead in
COM
. Connect the red and black leads to the circuit
to be measured and press the
TEST
button. The measured
resistance will be displayed, and if the resistance is below 30
Ω,
the
buzzer will sound. If
OL
is displayed this indicates the resistance
being measured is greater than the resistance range of the tester.
The buzzer can be toggled off and on by pressing the
)))
key.
RESISTANCE MEASUREMENT
Ensure circuit is not live by taking a voltage measurement
Set rotary switch to
K
Ω
range. Insert red test lead in
V
Ω
, and
black lead in
COM
.Connect the red and black leads to the circuit to
be measured and press the
TEST
button. The measured
resistance will be displayed. If
OL
is displayed this means the
resistance being measured is greater than the resistance range of
the tester.
INSULATION RESISTANCE MEASUREMENT (M
Ω
)
For safety reasons, please adhere to the following procedure for
Insulation Resistance Measurement:
Ensure that the
TEST
button is unlatched and is released. Turn the
rotary switch to select the voltage to be applied - 250V, 500V or
1000V DC. Insert red test lead in
V
Ω
, and black lead in
COM
.
Connect the black and red test leads to the circuit to be measured.
Note:
If a voltage higher than 30V is present on the circuit under
test, the buzzer sounds and the high voltage indicator (
) blinks
in the upper-right corner of the display. In this event, remove the
test leads from the circuit under test and proceed with caution to
investigate the source of the voltage on the circuit under test.
4. MAINTENANCE
4.1 Calibration
To maintain the integrity of measurements made using your
instrument, Martindale Electric recommends that it is returned at
least once a year to an approved Calibration Laboratory for
recalibration and certification.
Martindale Electric is pleased to offer you this service. Please
contact our Service Department for details.
E: service@martindale-electric.co.uk
T: 01923 650660
4.2 Cleaning
The unit may be cleaned using a soft dry cloth. Do not use
moisture, abrasives, solvents, or detergents, which can be
conductive.
4.3 Repair & Service
There are no user serviceable parts in this unit other than those
that may be described in section 3. Return to Martindale Electric if
faulty. Our service department will quote promptly to repair any
fault that occurs outside the guarantee period.
Before the unit is returned, please ensure that you have checked the:
- batteries
- fuses
- leads
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