‎Klein Tools ET120 Gas Leak Detector INSTRUCTION MANUAL

: June 1, 2024
: KLEIN TOOLS

Table of Contents

‎Klein Tools ET120 Gas Leak Detector
GENERAL SPECIFICATIONS
WARNINGS
FEATURE DETAILS
SYMBOLS ON METER
FUNCTION BUTTONS
OPERATING INSTRUCTIONS
MAINTENANCE
FAQs
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‎Klein Tools ET120 Gas Leak Detector

‎Klein Tools-ET120-Gas-Leak-Detector-product

GENERAL SPECIFICATIONS

Klein Tools ET120 is an easy-to-use tester that provides audible and visual alarms in the presence of methane, propane, and butane at concentrations as low as 50 ppm.
Audible Alert: 85 db ticking, modulation proportional to gas concentration
Visual Alert: 5 x red LED, illumination proportional to gas concentration
Range*: 50 to 10,000 ppm
LOW sensitivity* (white light): 1,000 to 10,000 ppm
HIGH sensitivity* (yellow light): 50 to 1,000 ppm
Initial calibration: 50 seconds to zero calibration
Response time (after calibration): 3 seconds
Sensor: Electrochemical
Sensor Life expectancy: 5 to 7 years
Probe: 18″ (457 mm) gooseneck
Batteries: 4x AAA alkaline
Operating Altitude: 6562 ft. (2000 m)
Relative Humidity: <80% non-condensing
Operating Temp: 32° to 122°F (0° to 50°C)
Storage Temp: -4° to 122°F (-20° to 50°C)
Dimensions: 8.11″ x 2.72″ x 1.75″ (206 x 69 x 45 mm)
Weight: 15 oz. (425 g) including batteries
Tripod Mount: 1/4-20 UNC
Drop Protection: 6.6 ft. (2m)
*Based on Methane. Other gasses or mixtures will have different values.
Specifications are subject to change.

WARNINGS

To ensure safe operation and service of the tester, follow these instructions. Failure to observe these warnings can result in severe injury or death. High concentrations of combustible gasses 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.

Read, understand, and follow all instructions to ensure safe operation.
Always turn on the gas detector in an area known to be free of combustible gasses.
Initial calibration should be performed in an area known to be free of combustible gasses. Calibration in an area containing combustible gas will result in incorrect calibration and lower than actual readings. This could result in combustible gasses not being detected.
The combustion gas leak detector is NOT intended as a personal protection device (PPE).
Do NOT replace batteries in an explosive atmosphere.
The combustion gas leak detector is NOT insulated. Avoid contact with areas where energized conductive elements may be present. Shut off power to the area before starting measurements.
Do NOT probe moving machinery that could catch any part of the meter and cause harm to the operator and the meter.
Always wear approved eye protection.

FEATURE DETAILS

‎Klein Tools-ET120-Gas-Leak-Detector-fig.1

Gooseneck
Gooseneck Clip
Sensor Head
Indicator Lights
LOW Alert Light
HIGH Alert Light
Auto-Zero Button
Mute Button
Auto Power-Off Button
LOW Sensitivity Mode Button
HIGH Sensitivity Mode Button
HOLD Button
Power Button
1/4-20 UNC Tripod Mount
Battery Door
Battery Cartridge (inside battery compartment)
NOTE: There are no user-serviceable parts inside the tester.

SYMBOLS ON METER

Warning
Risk of Electric Shock
Explosive Materials
Do NOT probe moving machinery
Wear approved eye protection
Read instructions
Not intended for use as Personal Protective Equipment (PPE)

FUNCTION BUTTONS

AUTO-ZERO BUTTON 7
Press to set zero point in a known clean environment.
MUTE BUTTON 8
Press to mute the audible alarm. Visual indicators will continue to function as normal.
AUTO POWER-OFF (APO) BUTTON 9
Press to enable or disable the Auto Power-Off feature. When enabled, the tester will automatically power off after 10 minutes of inactivity.
LOW BUTTON 10
Press to enter Low Sensitivity mode (1,000 to 10,000 ppm).
HIGH BUTTON 11
Press to enter High Sensitivity mode (50 to 1,000 ppm).
HOLD BUTTON 12
Press to lock the current measurement on the screen. Press again to return to taking active measurements.
POWER BUTTON 13
Press to turn tester on and off.

OPERATING INSTRUCTIONS

In an area where combustible gas is known to be not present, press the power button 13 for 3 seconds. The tester will beep and start a 50-second zero-calibration process while the first indicator light blinks 4. Once complete, all indicator lights 4 will blink for one second, then the HIGH 6 indicator light will illuminate and continue to flash, indicating it is ready to take a measurement.
Start measuring in the High sensitivity mode (50 to 1,000 ppm). To view higher values (1,000 to 10,000 ppm), press the LOW button 10 to enter Low sensitivity mode.
Point sensor 3 towards the area to test. As all indicator lights are illuminated in High sensitivity mode, switch to Low sensitivity mode by pressing the LOW button 10 .
NOTE: This may cause most of the indicator lights to turn off. In Low sensitivity mode, concentration levels are measured in larger intervals than in High sensitivity mode, meaning greater concentration levels are required to illuminate each indicator light.
As you get closer to the source of a leak, the concentration levels detected will increase, as indicated by increasing audible/visual alarms. Move the sensor head in the direction of increasing audible/visual alerts to the source of the leak.
WARNING: High concentrations of combustible gasses 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.

MAINTENANCE

BATTERY REPLACEMENT
When both the LOW alert light 5 and HIGH alert light 6 are illuminated at the same time, the batteries must be replaced.
WARNING: Do NOT replace batteries in an explosive atmosphere.

‎Klein Tools-ET120-Gas-Leak-Detector-fig.2

Loosen the screw and remove battery door 15.
Remove battery cartridge 16 from the battery compartment. Note orientation.
Remove and recycle 4 spent AAA batteries.
Install 4 new AAA batteries into the cartridge, noting proper polarity.
Place the battery cartridge back into the battery compartment, aligning the leads (fits only one way).
Replace the battery door and tighten the screw securely.

SENSOR SERVICING
When ALL lights on testers 4, 5, 6, 7, and 8 are illuminated, sensor 3 has failed and the unit must be serviced. Contact Klein Tools at 1-877-775-5346 or customerservice@kleintools.com for further details. There are no user-serviceable parts inside the tester.

CLEANING

Be sure tester is turned off and wipe with a clean, dry lint-free cloth. Do not use abrasive cleaners or solvents.
STORAGE
Remove the batteries when the tester is not in use for a prolonged period. Do not be exposed to high temperatures or humidity. After a period of storage in extreme conditions exceeding the limits mentioned in the General Specifications section, allow the tester to return to normal operating conditions before using.
WARRANTY
www.kleintools.com/warranty
DISPOSAL / RECYCLE
Do not place equipment and its accessories in the trash. Items must be properly disposed of in accordance with local regulations. Please see www.epa.gov or www.erecycle.org for additional information.
CUSTOMER SERVICE
KLEIN TOOLS, INC.
450 Bond Street Lincolnshire, IL 60069 1-877-775-5346
customerservice@kleintools.com www.kleintools.com

FAQs

What is the detection range of the Klein Tools ET120 Gas Leak Detector?

The Klein Tools ET120 has a detection range of approximately 50 to 10,000 ppm based on methane.

What type of alerts does the Klein Tools ET120 provide when detecting combustible gases?

The Klein Tools ET120 provides both visual alerts using five red LED lights and audible alerts up to 85dB, with the intensity increasing proportionally to the gas concentration.

What is the length of the flexible gooseneck on the Klein Tools ET120?

The Klein Tools ET120 has an 18-inch flexible gooseneck that expands the sensor's reach and can be clipped onto the meter for storage.

What is the auto power-off feature on the Klein Tools ET120?

The Klein Tools ET120 has an auto power-off feature after 10 minutes of non- usage to conserve battery life.

What is the weight of the Klein Tools ET120 Gas Leak Detector?

The Klein Tools ET120 weighs 13.00 oz (380.0 g).

What is the overall length of the Klein Tools ET120?

The overall length of the Klein Tools ET120 is 28.31 (71.9 cm).

What is the overall height of the Klein Tools ET120?

The overall height of the Klein Tools ET120 is 2.75 (7 cm).

What is the overall width of the Klein Tools ET120?

The overall width of the Klein Tools ET120 is 1.78 (4.5 cm).