Bedienungsanleitung Gossen Metrawatt METRISO C (Seite 26 von 28) (Englisch)

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26 GMC-I Messtechnik GmbH

Ð Illum: Press the Test key twice in order to activate and deactivate

display illumination.

Ð Display: Press the Test key after each test pattern appears in order to

check the display elements.

Ð 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.

13.2 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 unfa-

vourable 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 re-

charge 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.

Connect the NA102 battery charger to the charging socket with the

3.5 mm jack plug. Set the voltage selector switch at the NA102 to 9 V.

Switch the test instrument on.

The test instrument recognizes the fact that a battery charger has been

connected and starts the charging cycle. The 5 segments of the battery

symbol are continuously displayed in a sweeping pattern from left to right

for the entire duration of the charging cycle.

Depleted batteries require a charging cycle of approximately 14 hours. If

the batteries are exhausted to a great enough extent, the test instrument

can no longer be switched on. If this is the case, leave the test instrument

connected to the activated battery charger for about 30 minutes, and then

proceed as described above.

13.3 Changing the Batteries of the Temperature and Humidity Measuring

Adapter Z541A

Separate the bottom part of the housing from the top to change the bat-

teries.

Ð Untighten the screw at the bottom of the housing and remove the

housing lid.

Ð Insert two 1,5 V round cells of type LR1 (size N) in the battery com-

partment according to the indicated polarity symbols.

Ð Replace the housing lid (the opening at the bottom of the housing and

the thread of the screw must be on top of each other) and press the

lid until it engages. Retighten the screw carefully.

13.4 Fuses

If a fuse has blown due to an overload, an appropriate error message

appears at the LCD. However, the instrument’s voltage measuring ranges

are still functional.

Attention!

Disconnect the instrument from the measuring circuit before

opening the cap for replacing the fuse!

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