DET2/3
10
Operation
Operation
Before each use of the instrument, visually inspect the instrument case, test leads, stakes and connectors to
confirm their condition is good, with no damaged or broken insulation.
Power on / off
Rotate the mode switch away from
Off
to a mode to power up and activate the instrument
Rotate the mode switch to
Off
to power down the instrument.
Auto off
The instrument switches
Off
after a period of inactivity (user adjustable) (see General set-up (page 12)).
To start the instrument again rotate the mode switch to
Off
and then select a mode.
Power options
Internal battery
Mains supply: The instrument charges using the dc adapter, which will work at voltages between 100 and
240 V ac. You may continue to use the instrument while the internal battery is charging.
(See Battery charge (page 38)).
Green LED: On charge
Amber LED: External power On
12 V dc supply: Operate the instrument while connected to a 12 V dc supply. See 12 V supply (page 38).
See also Specifications (page 39).
Earth test options
Output voltage
The maximum output voltage of the instrument is ±50 V. This can be reduced to ±15 V for operation in situations
which require it. The most appropriate output voltage should be selected by the user based on local safety
procedures.
To change the output voltage
Press
15/50V
after the measurement mode is selected. The display will show the selected output voltage.
Test frequency
The instrument can either scan the usable frequency range to identify the test frequency with the lowest noise,
or the frequency set be manually set, as required.
Auto
: Press
Hz
. The instrument searches for the best frequency
Manual
: Press
to set a frequency between 10 Hz and 200 Hz
Noise filter
Press
(noise filter) to give additional noise rejection on the input signal in order to produce more stable
results, this will also extend the test duration.
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sales@calcert.com
1.800.544.2843
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