Specifications

Comfort Chek 100/200

Instruction 0019-9321

Release the f

button and perform an Air Calibration as described in

Section 3.7

WARNING! Failure to perform an Air Calibration after reset-

ting the instrument to its factory settings may cause incorrect

gas readings to be displayed.

3.6 Battery Charging

When the ‘BattLow’ message is displayed (refer to Section 2.8), the in-

strument must be recharged using the supplied battery charger.

Important! The battery has a long shelf life, but it is recom-

mended that the battery be recharged once a month if

left unused. Batteries that have not been charged for several

months should be given at least two charge/discharge cycles

before using the instrument.

As with all rechargeable batteries, there are guidelines that should be

observed: The battery should normally be charged at room temperature.

Charging at temperatures below 54 °F (12 °C) should be avoided since

this may cause a false indication of when the battery is charged, and

could also damage the battery.

Before beginning the charging process, ﬁ rst ensure that the instrument

is switched OFF. Next, plug the supplied charger into the appropriate AC

wall socket (an optional 12 VDC charger with cigarette lighter adapter is

also available). Then plug the charger’s output connector into the instru-

ment’s charging socket (Figure 1, Item H).

The word ‘CHARGING’ appears while the battery is being charged.

Charging time is approximately 2 hours.

Note: If the battery is deeply discharged, the display will

remain blank for a few minutes before the battery begins

charging.

Once the battery is fully recharged, the instrument will emit a beeping

tone for 30 seconds and display the word ‘CHARGED’. At this time un-

plug the charger and remove its output connector from the instrument.

CHARGING

>>>>>>>>

CHARGED

