BRUEL & KJAER 1623 - Dry Cells 1,5 V

Fig. 3. 3. Location of the six cells in the battery compartment of the
Type 1623
6. Switch the instrument Off to conserve battery power if it is not to be used immedi-
ately.
Note that the Battery Charger Unit ZG 0113 has a current capability which is about
equal to the current consumption of the 1623 when operating, so that with well-
charged cells, the ZG 0113 will act as an AC Mains power adaptor. (The power supply
slide switch on the rear panel is set to Int. Battery.)
3.2.2. Dry Cells 1,5 V
Ordinary 1,5 V dry cells to IEC R 20 (33 mm x 60 mm high) can also be used. "Long
Life" alkaline cells will give an operating capacity of about 1 2 hours continuous opera-
tion while ordinary cells will give 0,5 to 2 hours.
Never attempt to recharge ordinary or alkaline cells - there is a danger of explosion.
3.2.3. External DC Supply 6 to 15 V
14
A car battery or other DC source of between 6 V and 1 5 V with a power capability of at
least 3,5 W can be used to power the 1623. The source is connected to the 1623 via
the rear panel socket marked EXT. POWER SUPPLY with the connections shown in
Fig.3.4.
+
6 V to 15 V
;;;. 3,5 w
7 Pin DIN
Plug JP 0703 '
+ 6 V to+ 15 V
~--------------------~ov
770303
Fig.3.4. Connections for external power supply. Soldering side of
plug shown