Velleman DVM68 Notice D'emploi page 10

7.6 Transistor Test
Do not perform transistor measurements on live circuits.
Set the function switch at hFE position.
•
Identify whether the transistor is NPN or PNP type and locate emitter, b
•
Insert leads of the transistor to be tested into proper holes of the testin
•
panel.
LCD display will show the approximate hFE value at the test condition o
•
and Vce 3.2V.
8. Cleaning and maintenance
Do not replace internal parts yourself. Replace damaged or lost acc
ones with the same specifications. Order spare accessories e.g. test
Switch off the meter and remove test leads prior to replacing the ba
WARNING: To avoid electrical shock always disconnect the test le
the housing.
Remark: refer to the warning on the back of the meter
a. General mainenance:
Wipe the device regularly with a moist, lintBfree cloth. Do not use alcoh
•
b. Fuse Replacement
Remove test probes from the circuit under test. Remove the test probe
•
Switch off the multiBmeter.
•
Remove the 3 screws at the back and gently open the meter.
•
Remove the fuse from the fuse holder and replace it with a new fuse of
•
with the same specifications (F300mA/250V, Ø5x20mm – F10A/250V,
Close the meter carefully.
•
c. Battery Replacement
Remove the battery as soon as the "
•
Remove test probes from the circuit under test. Remove all test leads f
•
Switch off the multiBmeter.
•
Remove the 3 screws at the back and gently open the meter.
•
Replace the battery by a new battery of the same type and with the sa
•
(6LR61/6F22 9V alkaline, do not use rechargeable batteries)
Close the meter carefully
•
Notes:
Never open the housing when test leads are connected to the input
o
Do not try to repair or calibrate the meter yourself; contact your de
o
Replace damaged accessories immediately; order them at your loca
o
Do not use the meter when it is damaged.
o
9. Technical specifications
This device is not calibrated when purchased!
Regulations concerning environment of use:
Use this meter only for measurements in CAT I, CAT II and CAT III env
•
Use this meter only in a pollution degree 2 environment (see §5)
•
Max. voltage between terminal and earth
Display
Fuse protection
Power Supply
Ranging method
Polarity indication
25.02.2011
DVM68
" indication appears on the disp
1000V DC or 750V AC
3 ¾ digit LCD, 3260 c
2B3 readings / sec
IA & mA range : F 30
A range : F 10A/250V
9V battery
Auto / Manual
" B " displayed
10
Rev. 01
r, base and collector lead.
sting socket on the front
n of base current 10 IA
accessories by identical
est probes at your dealer.
battery or fuses.
t leads prior to opening
cohol or solvents.
bes from the input jacks.
of the same type and
V, Ø6.3x30mm).
isplay.
from the input jacks.
same specifications
ut jacks.
dealer.
ocal dealer.
nvironments (see §4)
AC rms (sinus)
0 counts max,
300mA/250V
0V
©Velleman nv