3
Read Before Operating
This manual must be carefully read by all individuals who have or will have the responsibility of
using, maintaining, or servicing this product. The product will perform as designed only if it is used,
maintained, and serviced in accordance with the manufacturer’s instructions. The user should
understand how to set the correct parameters and interpret the obtained results.
CAUTION!
To reduce the risk of electric shock, turn the power off before removing the instrument cover.
Disconnect the battery before removing sensor module for service. Never operate the instrument
when the cover is removed. Remove instrument cover and sensor module only in an area known to
be non-hazardous.
Special Notes
When the instrument is taken out of the transport case and turned on for the first time, there
may be some residual organic or inorganic vapor trapped inside the detector chamber. The
initial PID sensor reading may indicate a few ppm. Enter an area known to be free of any
organic vapor and turn on the instrument. After running for several minutes, the residual
vapor in the detector chamber will be cleared and the reading should return to zero.
The battery of the instrument discharges slowly even if it is turned off. If the instrument
has not been charged for one week, the battery voltage may be low. Therefore, it is a good
practice to always charge the instrument before using it. It is also recommended to fully
charge the instrument for at least 10 hours before the first use. Refer to this User Guide’s
section on battery charging for more information on battery charging and replacement.
Do not remove the filter when the instrument is on, otherwise, dust entry will reduce the
accuracy of measurement, shorten the life of the sensor, and possibly damage the sensor.
Benzene filtering tubes can form chromic acid when humid air is drawn through them for
extended periods. Tubes should be used for no more than a 15-minute STEL measurement
because the acid formed can severely damage the instrument if drawn into it by the
sampling pump. The quantities in each box of tubes are under the
de minimus
amounts for
shipment of hazardous materials; however spent tubes should be disposed of according to
local regulations.
