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Teledyne PEM-9004 - Portable emissions analyzer User Manual

Page 27

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Portable Emissions Monitor

Installation

Teledyne

Analytical

Instruments

15

powering up for the first time or after a lengthy period of inactivity (1
week or longer) turn the analyzer on without the probe attached.
Ambient air will be drawn in through the gas in port and used to set a
zero reference for the sensors.

The front panel display will indicate any problems encountered

during the initial calibration. It will also display the battery status using
a series of 10 battery icons. Each filled battery icon indicates 10% of
full charge remaining. For instance, if 7 filled batteries are indicated, the
state of charge of the battery is 70%.

Note: The initial auto calibration with the probe and

thermocouples unattached will cause a temperature sensor
warning. The display will indicate a T-Room Sensor and T-
Gas Sensor failure. This is normal if the thermocouples are
left unattached.

3.4 Battery Power

The PEM-9004 has a 6V NiCad battery installed and is designed to

operate only from battery power. Continuous monitoring (although not
recommended) for up to 36 hours is possible from a single charge. The
analyzer is equipped with a 120V 60 Hz AC battery charger for
recharging the battery. The unit should be OFF when the battery charger
is connected.

CAUTION:

THE ANALYZER IS NOT DESIGNED TO OPERATE IN
MONITOR MODE WITH THE BATTERY CHARGER
CONNECTED. USE ONLY THE 6V NICAD BATTERY
TO POWER THIS INSTRUMENT.

3.4.1 Charging the Battery

When recharging is necessary, turn the instrument OFF and connect

the charger to the instrument at the port labeled CHARGE. Connect the
power end of the charger to 120VAC 60 Hz power source or 220VAC
50/Hz depending on your model.

The service life and capacity of the battery are considerably

affected by the way the instrument is charged and used. In order to make
handling safer, the instrument has a load management unit.

The load management feature is responsible for maintaining the

state of charge of the battery and monitors the temperature of the battery