Tips on how to handle batteries correctly:
Never leave used dead batteries in the device !
If the device is likely to be unused for a relatively long time, remove the
batteries !
A leaking battery represents a health hazard and may also destroy the de-
vice. Use only leak-proof batteries !
Spent batteries are classified as special waste and must be disposed of in
an environmentally acceptable way. Take spent batteries back to your
dealer or dispose of them in your local battery collection container !
Rechargeable battery operation:
Instead of the standard batteries you can use rechargeable battery packs.
Rechargeable batteries are of lower capacity, 110 mAh, and provide an opera-
ting time of only 16 hours. If sensors or modules also requiring power are con-
nected, this operating time will be accordingly shorter. From our range of ac-
cessories we recommend the 9-volt rechargeable battery pack with a charger
integrated in the connector (order no. ZB 2000-LS).
Tips on how to handle rechargeable batteries correctly :
Rechargeable batteries, when you first receive them, are not charged.
You must first of all charge them to full capacity.
Attempting to recharge NiCd cells that are only partly discharged will not
restore them to full capacity. For this reason use the device until the
rechargeable battery pack is nearly totally discharged and then recharge
it completely. This will significantly prolong the useful life of your rechar-
geable batteries.
Even fully charged batteries not being used or left in storage will slowly
discharge; they should therefore be checked at least once per month and
if necessary recharged in order to ensure that they are not damaged as a
result of critically low discharge.
3.2 External voltage supply
On the right side of the device there is a socket (4) for connecting an external
power supply. In our range of accessories we offer a mains adapter (12 V /
200 mA) (order no. ZB 2290-NA). Or, alternatively, you can use some other
DC power source (7 to 13 V). The power source is connected by means of a
low-voltage connector (NES1 as per DIN 42323, center pin to minus).
If, however, the power supply has to be electrically isolated from the transdu-
cers or if a larger input voltage range is required, then electrically isolated
supply cable ZB 2290-UK must be used. It will then be possible to use the
measuring instrument in a 12-volt or 24-volt on-board supply system.
If a battery is connected, this will, in the event of a voltage drop
below 9 volts, take over as power supply.
ALMEMO
2390-5
13
Power supply
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