TROUBLESHOOTING
8 - 5
battery installed inside the monitor and displays the type of
battery. The re–chargeable battery includes a temperature
sensor. The temperature sensor reading is also displayed.
4) Adjust LCD Contrast
This display allows the user to adjust the LCD contrast.
Press
[Y/+]
to increase the contrast and
[N/-]
key to
decrease the contrast. The bar graph shows the current LCD
contrast setting. If the display appears blank, press
[Y/+]
key several times should see a more clear display.
5) Display LEL or VOL Raw Reading
This display shows the present raw reading of the LEL or a
combination of LEL/VOL sensor. The top display shows the
mode of the combustible sensor. The bottom line shows the
instantaneous reading of raw counts from the LEL or VOL
sensor. By pressing
[N/-]
key the sensor mode can be
switched from %LEL to %VOL and vice versa. If a standard
LEL sensor is installed, press
[N/-]
key will toggle on and
off the LEL sensor.
6) Show Clock, Battery and Temperature
This display shows the real time clock, battery voltage in raw
count and temperature sensor reading.
7) Sensor Expiration Date
This display shows the expiration date (month and year) of
all the installed sensors in the VRAE monitor. The
expiration date is calculated based on the manufacturing date
and expected life of each sensor which were stored inside
