User's Manual

Table Of Contents
QRAE 3 User’s Guide
62
Turning the PGM-25XX/D On
With the instrument turned off, press and hold the [MODE] key for 3 seconds, and then
release. The startup process begins. The instrument performs a set of self-tests, while
displaying information about instrument’s settings, configuration, due dates for
calibration and bump tests, etc.
When the startup completes, the PGM-25XX/D displays its normal measurement screen
with instantaneous readings and other information in a fashion similar to what is shown
in the illustration below (depending on the sensors installed).
Turning the PGM-25XX/D Off
Press and hold [MODE]. A 5-second countdown to shutoff begins. You must hold your
finger on the key for the entire shutoff process.
Alarm Signals
The instrument is equipped with audible, visible, and vibratio n alarms. During its normal
operation, the PGM-25XX/D compares gas concentrations to the programmed alarm
limits for Low, High, TWA and STEL alarms. If the concentration exceeds any of the
preset limits, the loud buzzer, red flashing LED, and vibration alarm are activated
immed iately to warn of the alarm condition. In addition, the PGM-25XX/D alarms if the
battery voltage is low, pump is blocked, etc.
When a low-battery alarm occurs, there may be approximately 20 to 30 minutes of
operating time remaining. However, it is recommended that you promptly change or
charge the battery in a non-hazardous location.