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GMC-I Messtechnik GmbH
19
Maintenance
19.1
Firmware Revision and Calibration Information
See section 4.6
19.2
Rechargeable Battery Operation and Charging
Check to make sure that no leakage has occurred at recharge-
able batteries at short, regular intervals, or after the instrument
has been in storage for a lengthy period of time.
If battery voltage has fallen below the allowable lower
limit, the pictograph shown at the right appears.
“Low Batt!!!” is also displayed along with a battery symbol. The
instrument does not function if the rechargeable batteries have
been depleted excessively, and no display appears.
Attention!
!
Use the Z502P charger only (available as an accessory)
in order to charge batteries which have already been
inserted into the tester.
Make sure that the following conditions have been fulfilled
before connecting the charger to the charging socket:
– Rechargeable batteries have been installed with
correct polarity (not standard batteries)
– the plug of the charger has been connected with
correct polarity, see also section 19.2.1
– The instrument has been disconnected from the
measuring circuit at all poles
– The instrument must remain off during charging.
If the rechargeable batteries or the battery pack have not been
used or charged for an extended period of time (up to a state of
excessive depletion):
Observe the charging process (which is indicated by LEDs at the
battery charger) and start another charging process if necessary
(disconnect the battery charger from the mains and from the test
instrument for this purpose. Reconnect it afterwards).
19.2.1 Charging Procedure with the Z502P Charger (accessory)
Ð
Insert the correct mains plug for your country into the charger.
Attention!
!
Make sure that rechargeable batteries have been
inserted (not normal batteries). We recommend the use
of rechargeable NiMH batteries (type: eneloop).
Attention!
!
Make sure that all of the rechargeable batteries are
inserted with correct polarity. If just one battery is
inserted with reversed polarity, it will not be recognized
by the instrument and may result in battery leakage.
Ð
Connect the charger to the test instrument with the jack plug,
and then to the 230 V mains with the interchangeable plug.
(The battery charger is only suited for mains operation!)
Attention!
!
Do not switch the test instrument on during charging.
Monitoring of the charging process by the microproces-
sor might otherwise be disturbed, in which case the
charging times specified in the technical data can no lon-
ger be assured.
Ð
Please refer to the operating instructions included with the
charger regarding the meanings of LED displays during the
charging process.
Ð
Do not disconnect the charger from the test instrument until
the green LED (charged/ready) lights up.
19.3
Fuses
If a fuse has blown due to overload, a corresponding error
message appears at the display panel. The instrument’s voltage
measuring ranges are nevertheless still functional.
Replacing Fuses
Attention!
!
Disconnect the device from the measuring circuit at all
poles before opening the fuse compartment lid!
Ð
Loosen the slotted screws at the fuse compartment lid next to
the mains power cable with a screwdriver. The fuses are now
accessible.
Ð
Replacement fuses can be accessed after opening the battery
compartment lid.
Attention!
!
Severe damage to the instrument may occur if incorrect
fuses are used.
Only original fuses from GMC-I Messtechnik GmbH
assure required protection by means of suitable blowing
characteristics (order no. 3-578-189-01).
Short-circuiting of fuse terminals or the repair of fuses is
prohibited, and is life endangering!
The instrument may be damaged if fuses with incorrect
ampere ratings, breaking capacities or blowing
characteristics are used!
Ð
Remove the defective fuse and insert a new one.
Ð
Insert the fuse compartment lid after the fuse has been re-
placed and secure it by turning clockwise.
19.4
Housing
No special maintenance is required for the housing. Keep outside
surfaces clean. Use a slightly dampened cloth for cleaning. In
particular for the protective rubber surfaces, we recommend a
moist, lint-free microfiber cloth. Avoid the use of cleansers,
abrasives or solvents.
Return and Environmentally Sound Disposal
The instrument is a category 9 product (monitoring and control
instrument) in accordance with ElektroG (German electrical and
electronic device law). This device is not subject to the RoHS
directive.
In accordance with WEEE 2002/96/EG and ElektroG, we
identify our electrical and electronic devices (as of Aug. 2005)
with the symbol in accordance with DIN EN 50419 which is
shown at the right. Devices identified with this symbol may not be
disposed of with the trash. Please contact our service department
regarding the return of old devices (see section 21).
If you use batteries or rechargeable batteries in your instrument or
accessories which no longer function properly, they must be duly
disposed of in compliance with the applicable national regula-
tions.
Batteries or rechargeable batteries may contain harmful sub-
stances or heavy metal such as lead (PB), cadmium (CD) or mer-
cury (Hg).
They symbol shown to the right indicates that batteries or
rechargeable batteries may not be disposed of with the
trash, but must be delivered to collection points specially
provided for this purpose.
BAT
Pb Cd Hg
