13
10
Stop
Watch
This function allows you to measure elapsed time up to one hour.
To
use stop-watch
1. Set the function selector switch to Continuity " " position.
2.
Press
“TEST”
key. This will show the stopwatch from
00:00
3.
Press key at any time to
RESET
the stopwatch.
4.
Press key at any time to
START
or
STOP
the stopwatch.
5. To quit stopwatch and go back to basic display, Press
“TEST”
key.
11
Menu
Structure
Structure of command menu for Insulation measurement :
Structure of command menu for Resistance & Continuity measurement
Basic
Display
nnnn
mm:ss
xxxx
OFF/ON
Basic
Display
nnnn
xxxx
xxxx
OFF/ON
Basic
Display
OFF/ON
Structure of command menu for Voltate measurement
Esc
= Confirmation of selected menu
item via ENTER key
= Select next menu item in the
flow direction
= Go back to previous level of
menu
= Backlit off
= Backlit on
= Time
= Recall
= Minutes
= Seconds
= Value for noGo
= Strored value
mm
ss
nnnn
xxxx
OFF
ON
8
5.2.2 Continuous measurement for a pre-selectable time :
In normal course, the insulation test terminates when the test key is
released and the measured insulation resistance value remains on
display for few seconds after the test key is released.
With the
Pre-selectable measurement time
feature, the
insulation test continues for the pre-determined time.
Pre-selectable time : 10 sec-5 min
Refer to the “11. Menu structure” section for how to set the value for
pre-selectable time. Once the time is set it is applicable to all the 5
ranges of Insulation measurement.
n
Select the required value of the time for which the test is
carried out.
n
Briefly Press the TEST key. The insulation resistance test carries
on for the time interval selected.
n
The test terminates automatically after the selected time has
elapsed.
n
The display then flashes the value of measurement at
the end until the Key is pressed.
5.3 Conclusion of measurement and discharging
After the measurement has been completed, any residual voltage is
displayed which may be caused by capacitive circuits. Contact with the
device under test must be maintained. The reduction in voltage can be
directly observed at the LCD.
Do not disconnect the device under test until voltage has dropped
below 25 volts !!
Note : Automatic discharge !
The capacitive circuits are automatically discharged when
TEST button is released following an insulation resistance test.
This auto discharge facility eliminates the need for the user to
discharge the circuit under test manually.
6
Additional Features
Additional features available in Insulation measurement ranges.
1.
Pre-selectable limit checks (Go/Nogo option)
2.
Storing the measured resistance value
3.
Minimum and Maximum value “MIN/MAX” storage
to be
Summary of Contents for Zeta 20
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