Setup; Unpacking The Instrument; Operation With Batteries; Operation With Battery Pack - MACHEREY-NAGEL PF-12 Plus Manuel

4. Setup

4.1 Unpacking the instrument

Take the instrument out of the box and check for damage caused during shipment.

4.2 Operation with batteries

The PF-12 Plus photometer runs on 4 AA Mignon batteries (included in delivery). Recharge-
able batteries, e.g. 4 NiMH AA 2500 mAh can be used in the instrument and are available
as accessories (REF 919 221). The charger and rechargeable batteries need to be ordered
separately. The battery status is displayed in the upper part of the display after switching
on the device. When connected to an USB adapter, a "U" is displayed besides the battery
symbol.
When changing batteries, we recommend to always exchange the entire set. The battery
compartment is at the bottom of the instrument. To change the batteries, the cuvette slot has
to be empty.
1. Turn the instrument around and place it on a soft surface.
2. Unscrew the screws of the battery compartment and take off the lid.
3. Insert the 4 batteries in the respective slots. Make sure polarity of batteries and slots
match.
4. Put the lid back on, tighten the screws and turn the instrument around.

4.3 Operation with battery pack

The PF-12 Plus can be equipped with an internal battery pack, which can be charged via the
USB port. The charging status of the internal battery pack is displayed in the upper part of
the display in form of a small battery symbol with an "A". When connected to a USB charger
additionally a "L" is going to be displayed besides the battery symbol, indicating the ongoing
charging process. You can order a power pack separately (REF 919 201) and insert it into
the instrument as follows:
1. Remove the screws of the cover of the battery compartment and lift off the cover.
2. Remove the holder of the AA battery and disconnect the plug connection to the instrument
carefully. Connect the plug of the new power pack to the connection plug of the PF-12
and insert the power pack into the battery compartment. Make sure that connection cable
is not broken or pinched.
3. Position the battery compartment cover on the instrument, tighten the screws and turn
around instrument.
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