7
Gossen Metrawatt GmbH
METRACELL BT PRO
6
Operation
6.1
Power Supply (rechargeable batteries)
Battery Operation
The battery tester is operated with rechargeable NiMH batteries.
Pre-charged batteries are shipped loose. You have already
inserted the batteries during initial startup (
condensed oper-
ating instructions).
Operating time is approximately 10 hours when the batteries are
fully charged. A warning is generated when battery voltage drops
to below 4.8 V. The battery tester can be operated for approxi-
mately 1 more hour after this warning is generated.
Attention!
!
Leaking batteries can damage the device.
Check the batteries at short, regular intervals and after long
periods of storage.
Charging Process
It takes about 3½ hours to charge the batteries.
Attention!
!
Damage to the batteries or the instrument.
When charging, use only:
- The included rechargeable batteries or the
batteries specified in the technical data
- The included charger
Always connect the battery charger to the
battery tester before connecting the charger
to the electrical outlet.
Note
Do not switch the battery tester on during charging. The
battery tester may not be operated during charging and is
switched off automatically after 3 seconds.
The battery tester is switched off.
4 NiMH batteries are inserted
(see section on “Replacing the Batteries”
7 for information
on inserting batteries).
All measurement cables and accessories must be removed
from the battery tester.
1. Insert the charger’s connector plug into the battery tester’s
2. Connect the charger to the 230 V mains outlet.
The batteries in the battery tester are charged.
3. Wait until the charging process has been completed.
It takes about 3½ hours to fully charge the batteries.
4. Unplug the charger from the electrical outlet.
5. Remove the connector plug from the battery tester’s charging
socket.
The batteries are charged. The battery tester can now be
used.
Replacing the Batteries
You can replace the batteries if necessary.
Attention!
!
Risk of injury due to contact with dangerous voltages.
Only use the battery tester when the battery compartment
cover is inserted and firmly screwed into place.
Required tools: Philips screwdriver
The battery tester must be switched off.
All measurement cables and accessories must be removed
from the battery tester.
1. Remove the holster from the battery tester: Press against the
bottom of the holster at the front and push it back and off of
the battery tester. As soon as the lower part of the battery tes-
ter is exposed, pull the instrument completely out of the hol-
ster.
2. Place the battery tester face down on a stable surface.
3. Loosen and remove the screw from the battery compartment
cover.
4. Unlock and remove the battery compartment cover.
5. Remove any batteries from the battery compartment.
6. Insert 4 approved rechargeable batteries into the battery com-
partment, making sure that the plus and minus poles match up
with the provided polarity symbols.
Attention!
!
Only the included batteries or those specified in the techni-
cal data (
6) may be inserted and used.
7. Place the battery compartment cover onto the battery com-
partment and press it until it audibly clicks into place.
8. Secure the battery compartment cover with the screw.
9. Pull the holster back over the battery tester: Observe the cut-
outs in the holster for the front panel and the connections.
Push the battery tester into the holster at the top first as far as
it will go. Then press on the front at the bottom until the battery
tester is fully reinserted into the holster.
The batteries have now been inserted. The battery tester can
be used.
6.2
Switching the Instrument On/Off
Switching the Instrument On
1. Press and hold the
Function
key for approximately 2 seconds.
The initial display appears with the instrument’s designation
and version, as well as date and time (
2. Press any key.
The
main menu
appears at the display. The battery tester can
now be used.
Switching the Battery Tester Off
Normally, the battery tester is switched off manually. If the battery
tester has not been used for more than 10 minutes, it’s switched
off automatically.
1. Select
POWER OFF
in the
main menu
with the help of the
▼
key.
2. Press the
OK
key.
The display goes blank. The battery tester has been switched
off.
Note
The battery tester can also be switched off by pressing the
Function
key. The key must be pressed and held for approx-
imately 10 seconds to this end.
However, it’s preferable to switch the instrument off using
the
SWITCH OFF
function.