multicomp pro MP780969 User manual

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Combustible Gas Leak Detector
MP780969
User Manual

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Contents Page
1- Safety Symbols ......................................................................... 3
2- General Safety Rules ................................................................ 3
2-1.Work Area Safety............................................................... 4
2-2.Electrical Safety ................................................................. 4
2-3.Personal Safety.................................................................. 4
2-4.Equipment Use and Care................................................... 4
2-5.Service ............................................................................... 5
3- Specific Safety lnformation........................................................ 5
3-1.Combustible Gas Detector Safety...................................... 5
4- Description, Specifications and Standard Equipment. .............. 6
4-1.Description ......................................................................... 6
4-2.Specifications ..................................................................... 6
4-3.Measurable Gases ............................................................. 7
4-4.Features ............................................................................. 7
4-5.Controls & Display.............................................................. 8
4-6.Standard Equipment. ......................................................... 9
5- Changing/lnstalling Batteries..................................................... 9
6- Pre-Operation lnspection .......................................................... 9
7- Set-Up and Operation ...............................................................10
7-1.0peration ............................................................................10
7-2.Hold Measurement.............................................................12
7-3.Auto Zero ...........................................................................12
7-4.Auto Power Off...................................................................12
8- Maintenance..............................................................................12
8-1.Cleaning .............................................................................12
8-2.Sensor Calibration/Replacement. ......................................12
8-3.Storage...............................................................................12
8-4.Disposal .............................................................................13
8-5.Troubleshooting ................................................................. 13

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1- Safety Symbols
In t his operator's manual and on the product, safety symbols and signal words
are used to communicate important safety information. This section is
provided to improve understanding of these signal words and symbols.
This is the safety alert symbol. It is used to alert you to potential personal
injury hazards. Obey all safety messages that follow this symbol to avoid
possible injury or death.
DANGER
Indicates a hazardous situa tion which, i f not a voided, will result in death or
serious injury.
WARNING
Indicates a hazardous situation which, ifnot avoided, could result in death or
serious injury.
CAUTION
Indicates a hazardous situation which, if not avoided, could result in minor or
moderate injury.
NOTICE
Indicates information that relates to the protection of property.
This symbol means read the operator's manual carefully before using the
equipment. The operator's manual contains important information on the safe
and properoperation of t he equipment.
2- General Safety Rules
Warning
Read all safety warnings and instructions. Failure to follow the warnings and
instructions may result i n electric shock,fire and/or serious injury.

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2-1.Work Area Safety
• Keep your work area clean and well lit. Cluttered or dark areas invite accidents.
• Do not operate equipment in explosive atmospheres, such as in the presence
of flammable liquids, gases or dust. Equipment can create sparks which may
ignite the dust or fumes.
• Keep children and by-standers away while operating equipment. Distractions
can cause you to lose control.
2-2. Electrical Safety
• Avoid body contact with earthed or grounded surfaces such as pipes, radiators,
ranges and refrigerators. There is an increased risk of electrical shock if your
body is earthed or grounded.
• Do not expose equipment to rain or wet conditions. Water entering equipment
will increase the risk of electrical shock.
2-3.Personal Safety
• Stay alert, watch what you are doing and use common sense when operating
equipment. Do not use equipment while you are tired or under the influence of
drugs, alcohol or medication. Amoment of inattention while operating
equipment may result in serious personal injury.
• Use personal protective equipment. Always wear eye protection. Protective
equipment such as dust mask, non-skid safety shoes, hard hat or hearing
protection used for appropriate conditions will reduce personal injuries.
• Do not overreach. Keep proper footing and balance at all times. This enables
better control of the power tool in unexpected situations.
2-4.Equipment Use and Care
• Do not force equipment. Use the correct equipment for you application. The
correct equipment will do the job better and safer at the rate for which it is
designed.
• Do not use equipment if theswitch does not turn it DN and OFF. Any tool that
cannot be controlled with the switch isdangerous and must be repaired.
• Disconnect the batteries from the equipment before making any adjustments,
changing accessories or storing. Such preventive safety measures reduce the
risk of injury.
• Store idle equipment out of the reach of children and do not allow persons
unfamiliar with the equipment or these instructions to operate the equipment.
Equipment can be dangerous in the hands of untrained users.

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• Maintain equipment. Check for misalignment or binding of moving parts,
missing parts, breakage of parts and any other condition that may affect the
equipment's operation. If damaged, have the equipment repaired before use.
Many accidents are caused by poorly maintained equipment
• Use the equipment and accessories in accordance with these instructions,
taking into account the working conditions and the work to be performed. Use
of the equipment for operations different from those intended could result in a
hazardous situation.
• Use only accessories that are recommended by the manufacturer for your
equipment. Accessories that may be suitable for one piece of equipment may
become hazardous when used with other equipment.
• Keep handles dry and clean; free from oil and grease. Allows for better control of
the equipment.
2-5. Service
Have your equipment serviced by a qualified repair person using only identical
replacement parts.This will ensure that the safety of the tool is maintained.
3-Specific Safety Information
Warning
This section contains important safety information that is specific to this tool.
Read these precautions carefully before using the Micro Combustible Gas
Leak Detectorto reduce the risk of fire, explosion orother serious personal injury.
SAVE THESE INSTRUCTIONS!
Keep this manual with the tool for use by the operator.
3-1.Combustible Gas Detector Safety
• High concentrations of combustible gases can cause explosions, fires,
asphyxia and other hazards that could cause serious personal injury or death.
Know the characteristics of the gas you are working with and use proper
precautions to avoid hazardous conditions.
• Always turn on and calibrate the gas detector in an area known to be free of
combustible gases. Calibration in an area containing combustible gas will
result in incorrect calibration and lower than actual readings. This could result in
combustible gases not being detected.

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4-Description, Specifications andStandard Equipment
4-1.Description
The Micro Combustible Gas Leak Detector is a gas leak locating tool that is used
to identify the presence of and isolate the source location of combustible
gases such as methane, propane, butane, ammonia, carbon monoxide
and many others(please see back of manual for a more complete list). E ven
low levels of combustible gas can be detected in seconds.
T he Micro Combustible Gas Leak Detector detects gas concentrations
through the use of an internal sensor. This sensor is heated during operation.
As the heated sensor interacts with gases,the unit immediately indicates to
the user that combustible gases arepresent.
The Micro Combustible Gas Leak Detector indicates the presence of
combustible gases with visual, audio and vibration feedback mechanisms. It can
detect different combustible gas concentration 1-1000 PPM or 0-10000PPM by
setting high and low concentration detection. When the tool senses the
presence of a combustible gas, it will tell the operator by LCD display,
triggering the appropriate audible alert or providing the appropriate vibration alert.
T he Micro Combustible Gas Leak Detectorcomes equipped with an attached
flexible 16" probe hose.
4-2. Specifications
Visual Alert 5 Red LEDs: Gas Measuring Levels; Sensitivity Visual Alert
Audible Alert (85db) Loud Audible Ticking Rate (With Continuous Modulation
Proportional to Gas Level)
Vibration Alert Standard
Sensitivity <50 ppm (methane)
Response Time < 2 Seconds
Range 0-1000 ppm (methane)
Sensitivity Level 5 Levels: 100/400/700/1000/>1000ppm
(methane)(HIGH)
Sensitivity Level 5 Levels: 1000/4000/7000/1000/>10000ppm
(methane)(LOW)
Warm Up Calibration Automatic
Warm Up Time 50 Seconds Max
Operating Buttons Seven: Power ON/OFF, High/Low Sensitivity, Audio Alerts,
Vibration Alerts, Auto Zero, Auto Power Off, Hold
Batteries Polymer Li-Ion Battery
Low Battery Status
Low and High Sensitivity LED Solid
Sensor Connection Plug-In
Expected Sensor Life 5 Years
Probe Flexible 16"/400mm

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4-3. Measurable Gases
Gases Detected
P- Xylene
Ammonia
Hydrogen Sulfide
Natural Gas typically consists of a high percentage of methane and smaller
percentages ofpropane and other gases.
4-4.Features
1-16" Adjustable Probe
2-ReplaceableSensor
3-TRIMode Detection
Methane
Hydrogen
Carbon Monoxide
Propane
Ethylene
Ethane
Hexane
Benzene
Isa- Butane
Ethanol
Acetaldehyde
Formaldehyde
Toluene
Common Mixtures That Would Include or Emit More Than
One Of These Gases
Natural Gas Paint Thinners Industrial Solvents Dry
Cleaning Fluids Gasoline

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4-5.Controls & Display
Figure 1- Micro Combustible Gas Leak Detector
Controls & Display
1. Warm Up Indicator
2. Low Sensitivity Indicator (White)
3. Auto Zero Enable/Disable
4. Vibration Alert Enable/Disable
5. On/Off
6. LED Display
7. High Sensitivity Indicator (Yellow)
8. High/Low Sensitivity Selector
9. Auto Power Off Enable/Disable
10. Hold Enable/Disable
11. Audible Alert Enable/Disable

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4-6. Standard Equipment
• Micro Combustible Gas Leak Detector
• 5V/0.5A Adapter
• Replaceable Gas Sensor
• Operator's Manual
5-Charging / Removing Batteries
Warning
In case of unnecessary danger, it is not allowed to charge or replace batteries in
the concentration of combustible gas. Set up and operate the gas detector
according to these procedures to reduce the risk of fire, explosions and
serious injury and incorrect measurements.
Micro Combustible Gas Leak Detectorhas a built-innon-replaceable battery. If
the battery islow, use the 5V/1A adapter to charge. Please remove the
battery only in case of battery leakage or before long-term storage or
transportation. Do not remove or re-charge batteries while in an area of
combustible gas, in order to reduce the risk of explosion, fire or other serious
injury. It is also prevented from operating during charging.
6- Pre-Operation Inspection
Warning
Before each use, inspect your Micro Combustible Gas Leak Detector and correct
any problems to reduce the risk of injury or incorrect measurements.
• Clean any oil, grease or dirt from equipment. This aids inspection.
• Inspect the Micro Combustible Gas Leak Detector for anybroken, worn,
missing, misaligned or binding parts, or any other condition which may prevent
safe and normal operation.
• Check that the warning labels are present, firmly attached and readable.
• If anyissues are found during the inspection, do not use the Micro
Combustible Gas Leak Detector until ithas been properly serviced.

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• Following the Set-Up and Operation instructions, turn ON and calibrate the
gas detector. Once calibration is complete use a combustible gas source
(such as an unlit lighter), to confirm that the gas detector senses the gas. If
the gas detector does not sense the gas, do not use the unit until ithas been
properly serviced. Remove the gas source and allow several minutes for the
sensor to stabilize prior to use.
7-Set-Upand Operation
Warning
High concentrations of combustible gases can cause explosions, fires, asphyxia
and other hazards that could cause serious personal injury or death. Know the
characteristics of the gas you are working with and use proper precautions to
avoid hazardous conditions.
Always turn on and calibrate the gas detector in an area known to be free of
combustible gases. Calibration in an area containing combustible gas will result
in incorrect calibration and lower than actual readings. This could result in
combustible gases not being detected.
Set up and Operate the gas detector according to these procedures to reduce
the risk of fire, explosions and serious injury and incorrect measurements.
7-1.0peration
Check for an appropriate work area as indicated in the General Safety Section.
Determine the application and confirm that you have the correct equipment. See
the Specifications section for information on sensitivity, gases detected and
other information.
Make sure that allequipment hasbeen properly inspected.
In an area where combustible gases are known to not be present, turn on the
gas detector by pressing and releasing the ON/OFF button for one second. The
gas detector will vibrate, beep, and the first level red light will illuminate to
indicate that the unit isON. The gas detector then starts an approximately 50
second sensor heat up and calibration, during which the first level red light is
blinking.
Once the calibration is complete, for one second, alllevel lights will flash, and if
the audible and vibration alerts are ON, the unit will beep and vibrate. Then
either the high (yellow) or low (white) light will be ON. Ifthe high (yellow) and low
(white) sensitivity lights are ON at the same time, this indicates that the batteries
need to be charged. Ifalldisplay lights are ON, this indicates that the sensor has
failed and that the unit needs to be serviced.

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If the gas detector isleft ONfor more than ten minutes with no activity and
Auto Power Off is enable, it will automatically shut OFF to conserve the
batteries. The Audible Alert and Vibration Alert retain the previous state the
detector was last in and can be turned ON or OFF if desired. Press and
release the Audible Alert button to turn it ON and OFF. The gas detector will
beep once when the Audible Alert isturned ON and OFF. Press and release
the Vibration Alert button to turn it ONand OFF. The gas detector will
vibrate twice when turning the Vibration Alert ON and vibrate once when
turning the Vibration Alert OFF. Enter the area to be monitored. Pay close
attention to the gas level indicators (see Table 1). As gas levels increase,
more red level lights will come on and the frequency of the audible alert
beeping and the vibration alert vibration will increase. See Table 1for
information on methane concentration levels and gas detector feedback.
When the gas detector is turned ON it is in whatever sensitivity state it was
last used. In the low sensitivity setting, the lowest concentration of methane
detected is 100ppm. Switch the sensitivity to the high setting by pressing
the high sensitivity button (H). This will be indicated by the yellow light in the
bottom right of the display. In the high sensitivity setting, the gas detector is
ten times more sensitive, with the lowest concentration of methane
detected at 40 ppm. Sensitivity can be changed at any time by pressing
theHigh Sensitivity (H) or Low Sensitivity (L) buttons.
If locating a leak, use the gas detector to find areas of lower gas
concentration and follow back to the source. In a piping system, trace the
system, stopping at the joints to monitor the gas levels.
When gas detection is complete, turn the gas detector OFF by pressing
the ON/OFF button.
Table 1- Gas Detector Feedback For Methane Concentration Levels
High Sensitivity
White Light ON Yellow Light ON
1...100ppm 1...1000ppm 1cyc/sec
100...400ppm 1000...4000ppm
ON
1.2cyc/secON
700...1000ppm 7000.. 10000ppm
ON
3.25cyc/sec
≥1000ppm ≥10000ppm
ON
4000...7000ppm
=0ppm
400...700ppm
=0ppm
Low Sensitivity
L2
Level Lights
6.25cyc/sec
1.65cyc/sec
OFF
Beeping
Audible Alert
L3 L4 L5L1
ON ON ON ON ON
ON ON ON OFF
OFF
OFF
OFF
OFFOFFOFFOFFOFF
OFF OFF OFF
ON
ON ON
OFF OFF
OFF

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Gas Concentration levels may differ depending on the specific gas detected.
7-2. Hold Measurement
Press and release the Hold button to enable or disable. When Hold is enable,
measurement is stopped and white light and yellow light stop blinking and ON.
When Hold is disable, measurement is running and white light and yellow light is
blinking.
7-3. Auto Zero
Press and release the Auto Zero button to enable or disable. When Auto Zero is
enable, blue light under the Auto Zero button is ON. Enable Auto Zero can
quickly adjust the zero point of sensor, improve the sensitivity and reduce the
interference of unknown gases.
7-4. Auto Power Off
Press and release the Auto Power Off button to enable or disable. When Auto
Zero is enable, blue light under the Auto Zero button is ON. If the gas detector is
left ON for more than ten minutes with no activity and Auto Power Off is enable, it
will automatically shut OFF to conserve the batteries.
8- Maintenance
8-1. Cleaning
Do not immerse the gas detector in water. Wipe off dirt with a damp soft cloth.
Do not use aggressive cleaning agents or solutions. Treat the instrument as you
would a telescope or camera.
8-2. Sensor Calibration/Replacement
The gas detector requires no calibration other than that done at regular start up.
If the sensor should fail, the sensor can be replaced.
8- 3. Storage
The Combustible Gas Detector must be stored in a dry secure area between -
1O'C (14°F) and 6O°C (158°F). Store the tool in a locked area out of the reach of
children and people unfamiliar with the gas detector. Remove the batteries
before any long period of storage or shipping to avoid battery leakage.

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8- 4. Disposal
Parts of the gas detector Combustible Gas Detector contain valuable materials
and can be recycled. There are companies that specialize in recycling that may
be found locally. Dispose of the components in compliance with all applicable
regulations. Contact your local waste management authority for more
information.
8- 5. Troubleshooting
PROBLEM
POSSIBLE REASON
SOLUTION
High (Yellow) and Low
(White) sensitivity lights are
ON at the same time.
The battery is
discharged (unable to
heat the sensor).
The battery is low
and needs to be
charged.
All display lights are
ON at the same time.
The sensor (or the
sensor heater) is
defective.
Shut OFF unit.
Sensor or entire unit
should be replaced.
INFORMATION ON WASTE DISPOSAL FOR CONSUMERS
OF ELECTRICAL & ELECTRONIC EQUIPMENT.
When this product has reached the end of its life it must be treated as
Waste Electrical & Electronic Equipment (WEEE). Any WEEE marked
products must not be mixed with general household waste, but kept
separate for the treatment, recovery and recycling of the materials used.
Contact your local authority for details of recycling schemes in your area.
Made in China
LS12 2QQ
PO Box 13362 Dublin 2