16
SECTION 1, continued
the battery eliminator (Figure 3). For battery operation, remove the
battery compartment cover on the instrument bottom and install the
batteries. Correct battery polarity is shown on the battery holder. The
instrument will not function if the batteries are not installed correctly.
Reinstall the battery compartment cover.
Figure 3 Battery Installation
1.4.3 Using the Battery Eliminator and
Rechargeable Batteries
For operation with the optional battery eliminator, plug the eliminator
jack into the connector on the turbidimeter side. The battery eliminator
may be used with or without the batteries installed. The eliminator will
not charge batteries. Rechargeable batteries may be used in the
instrument, but must be removed for recharging. See HOW TO ORDER
on page 76 for ordering information. To prolong battery life,
the instrument lamp turns on temporarily when the
READ key
is depressed. Batteries are not necessary for battery
eliminator operation.
1.4.4 Calibration
The 2100P Portable Turbidimeter is calibrated with Formazin Primary
Standard at the factory and does not require recalibration before use.
Hach recommends recalibration with formazin once every three
months, or more often as experience dictates. The Gelex Secondary
Standards supplied with the instrument are labelled with general ranges
To Next Page
Loading...
