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GMC-I Messtechnik GmbH
12
Maintenance
12.1 Self-Test
➭
The self-test is started from the main menu with the Test key.
The test has a duration of several minutes.
The following information is displayed in the two headers:
Type/Cal:
Device type / date of last calibration
Version:
Software version and issue date
Self-tests for items Chksum through LED are performed automatically,
one after the other, and are checked off or marked with a horizontal dash
if they are not passed.
Chksum1/2:
Status display for internal testing (Each test must be
completed with a check mark. If not, the measuring and
test instrument may no longer be used. Please contact our
service center in this case.
Relays:
Each relay is switched twice.
LEDs
:
The U and RCD/FI lamps each blink twice in red, and the
Netz/Mains lamps blinks twice in green and twice in red. The
PE lamp cannot be tested automatically!
As soon as the tests in the left-hand column have been completed, the
following tests must be started manually.
➭
Illum:
Press the Test key twice in order to activate and deactivate dis-
play illumination.
➭
Display:
Press the Test key after each test pattern has been displayed
in order test the display elements.
➭
Keytest:
Perform the key test by pressing each of the softkeys once,
and by pressing the start key once in each of its three positions. The
keys appear filled in at the key pictograph after they have been tested.
Individual tests can be skipped by pressing the Skip key before starting
the respective test. These tests are then identified with a horizontal dash,
as is also the case for tests which have not been passed.
12.2 Battery Operation
When only one solid segment remains in the battery symbol, the batteries
must be replaced, or recharged if rechargeable batteries are used.
Check the batteries at short, regular intervals or after lengthy periods of
storage to make sure no leakage has occurred. If leakage has occurred,
the electrolyte must be carefully and completely removed from the
instrument with a damp cloth before new batteries are installed.
Note
Prior to lengthy periods of rest (e.g. holiday), we recommend
removing the (rechargeable) batteries. This helps to prevent
excessive depletion or leakage of batteries, which, under unfavo-
urable circumstances, may cause damage to the instrument.
Charging the Batteries
Attention!
!
Use only the NA102 battery charger (article no. Z501N) with safe
electrical isolation and a nominal secondary voltage of 9 V DC to
recharge the batteries.
Before connecting the battery charger to the charging socket at
the device, make sure of the following points:
–
Rechargeable batteries have been installed (not normal batteries).
– The instrument has been disconnected from the measuring
circuit at all poles.
– The voltage selector at the charger has been set to 9 V.
