Instructions for Use RAUMEDIC
MPR2 logO
Manufacturer: zwo-400EN
RAUMEDIC AG, Hermann-Staudinger-Strasse 2, 95233 Helmbrechts, Germany Rev. 9 2020-09-22
Page 76 of 99
5 Power supply
5.1 Mains power supply
If the MPR2 is to be operated on mains power, mains adapter, which belongs to the scope of delivery,
shall be used only (RAUMEDIC Art. No. 284007-002 or 284027-001, corresponding with the type plate).
The mains adapter is not protected against moisture, and thus it must not get into contact with liquids.
Please keep in mind that the mains adapter may be connected only to correctly installed and approved
sockets.
5.2 Displays when operating on mains power
The Power On LED [6] is lit when the apparatus is supplied by the external mains adapter. If the
apparatus has been switched on, this display is permanently lit; in addition the display illumination is
switched on permanently, which cannot be switched off with the key. The symbol in the upper
line of the display renders information on the charge condition of the battery: A full bar indicates a charged
battery pack. If the apparatus has been switched off, but the unit is connected to the mains adapter, the
display flashes and signals the charge of the battery.
5.3 Battery operation
The MPR2 has been equipped with a gas-tight and rechargeable battery. In fully charged condition, the
MPR2 can be supplied with power for about four hours (all channels occupied; display lighting off; PHB =
1 s; at 22 °Celsius).The data of the operating period applies for a new and fully charged battery. The
frequent use of the display illumination reduces the operating period due to a larger demand of power. An
aged battery caused by many charging and discharging cycles, for example, reduces the maximum
operating period to be achieved as a matter of principle. The battery is charged in the MPR2 as soon as it
has been connected to the external mains adapter. The battery is protected against overcharging. The
MPR2 has been equipped with a deep-discharging protection system. Approximately half an hour before
the apparatus is switched off automatically, an acoustic alarm is sounded.
If the apparatus is not switched off at the end of the remaining operating time or if no mains adapter is
connected, the apparatus is switched off at the end of the remaining operating time. In this case, a
continuous sound will be released for at least 30 seconds (typically one hour). As soon as the mains adapter
is connected this warning sound will turn off. If no mains operation is possible, switch on the apparatus and
off again after a few seconds. Avoid a longer period of storage in discharged condition.
Please observe the information on the influence of storage as well as the recommendations on
battery maintenance as otherwise the remaining operating period cannot be guaranteed.
5.4 Displays when operating on battery
The Power On LED [6] flashes when the apparatus is supplied by the internal battery. If the apparatus
has been switched on, this display flashes permanently; the display illumination is switched off, but can be
switched on again by pressing the key. The display illumination is switched off automatically after 60
seconds. The symbol in the upper line of the display renders information on the charge condition
of the battery: A full bar indicates a charged battery pack. If the apparatus has been switched off and is not
connected up to the mains adapter, all displays are off.
5.5 Influence of the storage conditions on the battery operation
When the MPR2 is stored, the battery pack is subject to self-discharge, which is compensated by the
software as far as possible. In order to guarantee the residual operating period in battery pack operation,
the battery pack has to be charged completely after storage. Depending on the storage temperature, the
condition prior to storage and the ambient temperature, complete charging will take between five and twenty
hours. Avoid high storage and charging temperatures in order to counter excessive aging of the battery
pack. Ideal conditions may be expected after complete battery maintenance.
This document is for information only
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