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OPERATION AND USE
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OPERATION AND USE
continued from page 8
CAUTION: Always start any Sensit
®
Gold CGI in a gas
free environment to insure a proper zero.
1. Push the POWER/MUTE BUTTON (A). The following start-
up sequence will be displayed.
a. Product name and model version number
b. System check for proper pump flow and battery strength
c. Date and time
d. Gas type
e. Serial number
f. Warm-up period. Minimum 30 sec., maximum 5 min.
g. Autozero of sensors
h. Work display
2. If the display fails to illuminate or BAT LOW is shown on the
display, replace the batteries. There is room in the carrying case
to keep an extra set.
3. If any sensor is past the intended calibration cycle, CAL DUE
will appear during the start-up sequence. The instrument will
also show which sensor is due for calibration at that time.
4. If after the warm-up period, the instrument determines that a
sensor is inoperable, an ERROR message will flash for that
sensor. Then FAIL will show on the display for the corresponding
sensor.
5. The display will indicate LEL readings by showing an “L” next
to the % symbol. Standard resolution is 0.1% LEL, the equiva-
lent of 50ppm methane.
As an option, the instrument is capable of displaying a range of
0.1% LEL up to increments as high as every 2% LEL. An alter-
native option is to request a PPM display. Resolution for this
option is 1ppm or every 10ppm. An X on the display indicates
that the instrument is not outfitted with that sensor.
6. Prior to use, test the integrity of the sensor cap and tubing.
Use your finger to block the inlet of the sensor cap for 4-5 sec-
onds. The display will read FLOW BLOCKED if all seals are
intact. If this does not occur, change the sensor cap and “O”
rings. A spare sensor cap and “O” rings are supplied with each
instrument. During pump flow block, a beep will occur every 2
seconds until the pump restarts and adequate flow is present.
7. It may be necessary to manually zero the instrument based
on company practices and environmental conditions. Always
zero the instrument in a clean air environment.
8. When testing areas with elevated temperatures such as ap-
pliance vents or flues, always attach the optional hot air probe to
the end of the sensor cap. These connections need only be
finger tight. Failure to use the approved probe can result in dam-
age to the instrument and may void the warranty.
CAUTION: Do not handle the steel portion of any hot
air probe after use as burns may occur!
