7.
Continuity
Testing
and
Resistance
Measurement
Attention !
Be absolutely certain that the device under test
is voltage-free.
7.1
Continuity Testing
*
Verify that device under test is electrically dead.
*
Set the function selector switch to “ ” position.
*
If required null lead resistance by doing Zero adjustment below.
*
Connect the device under test as shown in diagram.
*
The measured resistance value will be displayed on the display.
*
The instrument generates a continuous sound signal if
the measured resistance value is less than the pre-setted
“GoNoGO” value. Default value is 5
W
Refer to the “11. Menu structure” section for how to set the value
for the limit value.
7.2
Low Ohm Measurement (
W
)
*
Verify that device under test is electrically dead.
*
Set the function selector switch to “
W
” position.
*
If required null lead resistance by doing zero adjustment below.
*
Connect the device under test as shown in diagram
*
The measured resistance value will be displayed on the display.
*
The instrument generates a continuous sound signal if the
measured resistance value is less than the pre-setted
“GoNoGO” value. Default value is 0
W
Refer to the “11. Menu structure” section for how to set the
value for the limit value.
7.3
Zero adjustment
When measuring very low resistance values, you can eliminate
resistance of leads and contact resistance by zero adjustment.
*
Connect the test leads to instrument and connect the free ends of
the leads to one another.
*
Wait for reading to stabilize.
*
Briefly press the “TEST” push button. The instrument
acknowledges zero adjustment by a sound signal and
the LCD shows “0.00” (+1digit) and the symbol “ZERO” (17) is
displayed. The resistance measured at the instant the push button
is pressed is used as reference value (0-9.99
W
). It is automatically
deducted from the values measured thereafter.
*
Zero adjustment can be cleared.
Ø
By pressing the “TEST” button once again.
Ø
By switching the instrument off.
Also zero adjustment is cleared when Auto shutOFF operates.
Additional features available in Ohm and Continuity ranges.
1.
Pre-selectable limit checks (Go/Nogo option)
2.
Storing the measured resistance value.
3.
Minimum and Maximum value “MIN/MAX” storage.
11
10
Continuity
Test
-
M
W
50V
100V
250V
500V
1KV
V
+
-
M
W
50V
100V
250V
500V
1KV
V
+
Zeta 20
400
100kM
600
10kM
200
1MG
800
1kM
100k
1000
10MG
8
L
L
Zeta 20
400
100kM
600
10kM
200
1MG
800
1kM
100k
1000
10MG
8
L
L
CE
CE
Summary of Contents for Zeta 20
Page 2: ......
