UEi Test Instruments CD100A - Manual (Page 2)

International Symbols
Operating Instructions
1. Turn the instrument on by rotating the thumwheel downward in a
non-contaminated environment (fresh air).
2. The green power LED will be illuminated when the unit is
turned on. If the battery level is low, the red LED will be steady
and the tic will not be adjustable. The battery will need replacing.
3. Adjust to slow uniform tic rate with the use of the thumbwheel
(approximately two tics per second). This sets the instrument
to the background level. Start your testing by setting the
instrument in fresh air. The red LED indicator will flash in
correspondence with the tic rate. Allow about 10 seconds for
the sensor to stabilize indicated by a steady tic rate. (It may
require up to two minutes to stabilize).
4. The unit responds to gas with a variable audible tic sound.
The audible tic increases in volume when exposed to gases
with 50 parts per million or more. When gas is detected, the tic
rate will increase, rotate the thumbwheel back to the steady tic,
resetting the instrument to this new background level. Move the
instrument into higher concentrations of gas (indicated by
increase tic rate) until the leak is found.
5. The "Tip-Light" is used to see around the area of the leak in
a dark environment.
6. When this instrument is used in noisy environments, look
at the red LED, which flashes more rapidly as the tic rate
increases. The optional earphone can be plugged into the
side of the unit, if there is high background noise or the
operator does not want to disturb other people. This also
disables the speaker.
7. If the tic rate becomes uncontrollable, it may be necessary
to change the sensor.
8. The detector will respond to some leak finding solution (soap),
so use your detector first. If over exposed to some gases, the
detector may take an extended period of time
to return to normal.
CD100A-MAN P. 1
Introduction
The CD100A Combustible Gas Leak Detector is capable of sensing many
combustible, non combustible and toxic gases that include but are not
limited to the following:
Acetone Industrial Solvents
Alcohol Jet Fuel
Ammonia Lacquer Thinners
Benzene Methane
Butane Naphtha
Ethylene Oxide Natural Gas
Gasoline-Petrol Propane
Halon Refrigerants
Hydrogen Sulfide Toluene
NOTE: This leak detector is factory calibrated for methane in air.
WARNING!
This unit should not be used for detection of Carbon Monoxide.
Features include
• Fully adjustable steady tic rate accelerates as the sensor tip
approaches a leak (the adjustment knob is located on the side
of the unit)
• "Tip-Light" in sensor cover used to see around the are of leak
in a dark environment
• Long 18" flexible gooseneck
• Audible and visual leak indicator
• Low battery indicator and separate battery compartment for
easy replacement
• Power On light
• Solid state semiconductor sensor provides instantaneous
detection
• Sensor cover to protect sensor
• Ruggedized protective rubber boot
• Socket for optional earphone
• One year limited warranty
Safety Tips
Before using this detector, read all safety information carefully. In
this manual the word "WARNING" is used to indicate conditions
or actions that may pose physical hazards to the user. The word
"CAUTION" is used to indicate conditions or actions that may
damage this instrument.
WARNING!
Charging or discharging batteries may give off an explosive
gas. Keep away from open flame and sources of ignition from
the battery at all times.