6.1 Pre-selectable limit checks (Go / No-Go option)
An acoustic signal can be generated when the measured value of
resistance falls below an adjustable noGo value.
A separate noGo value can be set for each range of insulation
resistance measurement as well as for Ohms, Continuity ranges.
Refer to the “11. Menu structure” section for how to set the value
for the noGo value.
6.2
Storing the measured resistance value
l
To store the value of resistance press “STORE” key when the
resistance measurement is in progress. This will store the
resistance measured at the instant the key is pressed.
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This way maximum 10 readings per range can be stored.
th
l
After 10 values are stored for the selected range the 11 value when
stored will over-write the first value i.e. at any given point of time
only ten readings per range can be stored.
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The readings are stored in a volatile memory. Therefore when the
instrument is switched off, the readings are lost.
Recalling the stored values
The stored values can be recalled and viewed in the menu
structure.
Refer to the “11. Menu Structure” section for how to view the stored
value.
6.3
Minimum value and Maximum value “MIN/MAX” storage
facility (for all measuring ranges)
With the MIN/MAX function, you can hold the minimum and the
maximum measured value which was applied to the input of the
instrument after activating MIN/MAX. The most important application is
determination of minimum and the maximum value for long term
monitoring of measured quantities.
The function MIN/MAX can be activated in all measuring ranges.
MIN/MAX does not influence analog indication, you can still read the
actual measured value.
Apply the measured quantity to instrument prior to activating MIN/MAX
function.
The MIN/MAX function is switched off when.
1.
Key is pressed for approximately for 1 Sec. OR
2. Then function selector switch is operated OR
3. When the instrument is turned OFF and ON again
9
Function
MIN/MAX
Measured Value
MIN and MAX
Meter reaction
Display
Measured value Digital MIN/MAX
Sound
signal
1. Activate
and store
2. Store
and display
3. Return
to 1.
Reset
short
short
short
short
long
Stored
Stored continued
in background
new MIN and MAX
values are displayed
Same as 1.
Stored values are
not cleared
Cleared
Actual measured value
Stored MIN value
Stored MAX value
Same as 1.
Cleared
MIN/MAX
flash
MIN flash
MAX flash
Same as 1.
Cleared
1x
1x
1x
1x
2x
12
8.
Voltage
Measurement
(V
AC/DC)
You can use this instrument for voltage measurement from 25V to 600V
AC or DC.
*
Keep the function selector switch to “V ” position and
apply the input.
*
The instrument automatically displays whether the input
is AC or DC along with the value of the external voltage.
*
If the value of voltage is < 25V (AC or DC), the display
“025V” flashes. If the value of the voltage is > 600V (AC
or DC), a continuos acoustic signal is generated.
*
When reverse DC is applied it displays “-dc”
Additional features available in Insulation measurement ranges.
1.
Minium and Maximum value “MIN/MAX” storage
Voltage Measurement
9.
Default
Live
Circuit
Warning
When more than 25V (AC or DC) is applied to the terminals the
instrument defaults to voltmeter on all switch positions. In addition the
beeper will sound on all switch position (except the V position).
When external voltage>25 V is present, Insulation Ohm and Continuity
Tests are inhibited.
When external voltage <25 V is present, only the Insulation Tests are
available !!
Note :
The default live circuit warning does not operate
(i) when in STOPWATCH mode.
(ii) when in MENU structure.
+(-)/~
-(+)/~
2 9
2
M
W
50V
100V
250V
500V
1KV
V
Zeta 20
400
100kM
600
10kM
200
1MG
800
1kM
100k
1000
10MG
8
L
L
VAC VDC
CE
Содержание Zeta 20
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