Hach Ultra MET ONE 237AB, User Manual

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13
Section 4 System Start Up
4.1 Power up
Turn on the switch at the back of the MET ONE 237 particle counter (refer to Figure 6 on
page 12 ). The counter will display the main screen when turned on ( Figure 7 on page
15 ). If the
LO BATT
indicator is lit, plug in the AC adaptor to charge the battery. The
counter may be operated during the charging of the battery.
Note: Use the AC adapter provided by the manufacturer to charge the battery or operate the
counter. Other off-the-shelf power modules may have different power, current or polarity which could
damage the counter.