26
Interface
Type
RS232C, serial, as per DIN 19241
Data transmission Optically with infrared light through the case
Baud rate
8192 bits/s
Ambient conditions
Functional temperature
range
-10
0
C...+
50
0
C
Storage temperature
range
-25
0
C...+70
0
C without batteries
Climatic class
2z/-10/50/70/75 % with ref erence to VDI/VDE 3540
Altitude
up to 2000 m
Mechanical configuration
Protection type
IP 50, for the connection sockets IP 20
according to DIN VDE 0470 Part 1 /EN 60529
Dimensions
84 mm x 195 mm x 35 mm
Weight
350 g approx.,including battery
18. Maintenance
Caution
Disconnect the meter from the measuring circuit before you open it to
replace the battery or the fuse!
18.1. Battery
Prior to initial start-up, or after storage of multimeter, verify that the battery
of multimeter does not leak. Repeat this check in regular short intervals.
If the battery leaks, completely remove the battery electrolyte carefully
with a moist cloth and install a new battery before you operate multimeter
again.
When the symbol "
" (17) appears on the LCD (1) replace the battery
as soon as possible. Measurement can be done, but a reduced measuring
accuracy must be taken into account.
The multimeter operates with a 9 V at cell battery according to IEC 6 F
22 or IEC 6 LR 61 or with a suitable NiCd storage battery.
Response time
Transient response for
step function of the
measured quantity
Response time (after manual range selection)
of analog
indication
V
,
V
~,
A
,
A
~
30W ... 3 MW
30 MW
nF
m
F,
0
C
300 Hz, 3 kHz
30, 100 kHz
% (1 Hz)
% (>10Hz)
Measured quantity/
measuring range
of digital
display
0.7 s
1.5 s
4s
0.7 s
1.5 s
2 s
5 s
1.5 s
max. 1...3 s
max. 2 s
max. 0.7 s
max. 9 s
max. 2.5 s
from 0 to 80 %
of upper range limit
from
oo
to 50 %
of upper range limit
from 0 to 50 %
of upper range limit
3
Repair, replacement of parts:
When opening the meter, live parts may be exposed. Therefore, the
meter must be disconnected from the measuring circuit prior to opening
its case for repair or replacement of parts. If repair cannot be avoided
unless the meter is opened and live, this work must only be performed
by a qualied person who understands the danger involved.
Faults and abnormal stress:
When it is realised that the safe operation is no longer possible, take the
meter out of service and secure it against accidental use.
Safe operation may not be possible,
when the meter shows obvious signs of damage,
when the meter no longer functions correctly,
after prolonged storage under adverse conditions,
due to severe stress during transportation.
3. Switching the multimeter "ON"
Battery
We have already tted your meter with a 9 V at cell battery according to
IEC 6 F 22 or IEC 6 LR 61. It is ready for operation.
Before you use the
meter for the rst time or after storage, refer to Section "18.1 Maintenance-
Battery".
Switching the meter "ON"
Press the "ON/OFF" pushbutton (2).
Switch-"ON" is acknowledged by a sound signal. As long as you
keep the pushbutton pressed, all segments of the liquid crystal display
(LCD) will appear. The LCD is shown on page 1.
After the pushbutton is released, the meter is ready for operation.
Note:
Electric discharges and high-frequency inuence may cause incorrect
information to be displayed and block the measuring process. Reset the
meter by switching it OFF and ON again otherwise, check the battery
connections.
Meaning of the symbols on the device
Warning of a danger point
(Attention, refer to the user
manual)
Earth (ground) terminal.
Double or reinforced insulation
