17
- Use
↑
and
↓
keys to select appropriate threshold value. If the displayed result is higher than the set threshold limit, the result will
be accompanied by an error sound signal (after completion of the measurement). No threshold value will be selected and no
sound signal will be activated when «
∗∗∗
Ω
» is selected instead of threshold limit.
- Press Exit key to exit Low resistance threshold selection menu.
■
Timer value + AUTO start option
-
Press Timer key and the menu for selection of timer value is displayed.
A fte r p re s s in g E x it
" M a k e c o n n e c tio n !" m e s s a g e
w ill b e d is p la y e d
Fig.16. Timer value selection menu with auto option
-
Use
↑
and
↓
keys to select appropriate test time value.
-
To activate the measurement automatically when the instrument is connected to the equipment under test press the
Auto key. In this mode a small voltage value is always present on the continuity test terminals. The flow of a small current
across the tested item when the test terminals are connected will activate the measurement. By turning the ROTARY
SWITCH or switching off the instrument the AUTO function is automatically disabled.
STEP 3. Connect test probes to the instrument and to the tested item as shown in the figure below.
U
:
I
:
tes t
tes t
< 1 2V /50 H z
> 0 .1 A , 0 .2 A , 1 0 A , 25 A ~
Fig. 17. Connection of test leads
STEP 4. Press START/STOP key to start the measurement.
STEP 5. Wait for the set time to elapse or press START/STOP key again to stop the measurement.
STEP 6. Save displayed result for documentation purpose (see instruction in chapter 5.2. on how to save displayed result).
NOTE !
Test results can be adversely affected by impedances of additional operating circuits connected in parallel with the tested
device or by transient currents.
4.4. VOLTAGE DROP SCALED TO TEST CURRENT OF 10 A~
CONTINUITY position
How to carry out the measurement
STEP 1. Set rotary switch to CONTINUITY position, press Vdrop key. The following heading is displayed.
