Power Supply; Mains Operation; External Dc Voltage Supply; Operation With Rechargeable Battery (Only With Module Es5690-Ap) - Ahlborn ALMEMO 5690-1M Operating Instructions Manual

6.

POWER SUPPLY

Power can be supplied to the instrument in any of the following ways :
Mains adapter 12V/2.5A
Electr. isol. power supply cable, 10 to 30 VDC, 0.25 A
Electr. isol. power supply cable, 10 to 30 VDC, 1.25 A
Rechargeable battery module, NiMH 9.6 V / 1600 mAh (ES 5690-AP)
See product overview, Annex 14 and the following chapters.

6.1 Mains operation

To power the device from the mains use the mains adapter provided, 12 V /
2.5 A (ZB 1212-NAx). The mains adapter must be connected to the DC socket
(2g) and locked by twisting to the right.
If necessary the device can also be grounded via the bare socket (6h) (e.g.
protective ground connector).

6.2 External DC voltage supply

The DC socket (2g) can also be used to connect another DC voltage, 10 to 13
V (minimum 200 mA). For this connection use a cable with 2 banana plugs (ZB
5090-EK). If, however, the power supply has to be electrically isolated from the
transducers or if a larger input voltage range, 10 to 30 V, is required, then elec-
trically isolated supply cable (ZB 3090-UK) must be used (or ZB 3090-UK2
with the rechargeable battery module). It will then be possible to use the
measuring instrument in a 12-volt or 24-volt on-board supply system.
6.3 Operation with rechargeable battery
module ES5690-AP)
For mains-independent operation the system must be equipped with module
AP with eight NiMH rechargeable batteries (9.6 V / 1600 mAh). At a current
consumption of approx. 25 mA this will give an operating time of approx. 60
hours. To prolong the operating time for the purposes of long-term recording
the device can be left in SLEEP mode; (see 10.2.1). When the remaining ca-
pacity of the rechargeable batteries drops to approx. 10%, the ALARM LED in
the display will start flashing; as soon as this happens the batteries must be
recharged. If the batteries are completely discharged the device will switch off
to avoid the risk of critically low discharge. The measured data and time-of-day
will, however, be retained; see 6.6. The NiMH rechargeable batteries can in
fact be recharged at any time and in any charge status using the intelligent
charge circuitry. To charge the batteries the mains adapter,12 V / 2.5 A (ZB
1212-NAx) must be connected to socket DC-A (1a) on the battery module. The
"CHARGE" lamp should then light up indicating that the batteries are being re-
charged. After approx. 3.5 hours the batteries are fully recharged and the LED
goes out again. After a certain period the batteries are recharged again; the
charge circuitry then switches over to trickle charge. The mains adapter can
14
(ZB 1212-NAx)
(ZB 3090-UK)
(ZB 3090-UK2)
(only with