15
SECTION 2 INSTRUMENT SETUP
2.1 Battery Installation
Power is supplied by four AA-sized alkaline batteries. Typically,
a set of batteries provides approximately six months of operation.
The colorimeter lamp is an LED and is on only long enough for
the measurement sequence to take place (approximately
2 seconds).
The instrument will automatically shut off if no keystrokes are
made for 15 minutes when in normal mode and four hours when
in user-entry mode.
Figure 4 provides an exploded view of the battery installation.
When replacing discharged batteries, always replace the complete
set of four.
Hach recommends using alkaline batteries in this instrument. Do
not use rechargeable Nickel Cadmium (NiCad) batteries.
The battery compartment is accessible from the underside of the
instrument. Make sure the sample cell compartment is empty. Lay
the instrument upside down on a padded surface, and install
batteries as follows:
Note: For performance
reasons, never remove the
battery cover from this
product except when
servicing the batteries.
1. Disconnect the Data Transfer Adapter (if connected) from
the instrument.
2. Loosen the two battery compartment screws and remove the
battery compartment door as shown in Figure 4.
3. Install four AA alkaline batteries in the battery holder as
shown in Figure 4. Match the polarities of the batteries with
the polarity markings in the battery compartment.
4. Replace the battery compartment cover, tighten the screws,
and return the instrument to the upright position.
DANGER
Use of nickel-cadmium
batteries under a fault
condition creates a
potential fire hazard.
PELIGRO
La utilización de pilas de níquel-cadmio en condiciones de falla crea
el riesgo de incendio.
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