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Specifications 

Sensitivity…………….. 50 ppm methane 

Sensor Type…………. Low power semiconductor 

Warm Up Time……….. Approx.60 seconds 

Response Time………. Less than 2sec. (up to 40% 

LEL) 

Duty Cycle…………….. Continuous 

Probe Length………….. 16" 

Power Supply…………. 3”C” cell batteries 

Battery Life……………. 8 hours continuous use, 

typical 

Alarm……………………Visible & Audible at 10% 

LEL for Methane. Can be 

calibrated for other 

concentrations or gases. 

Warranty……………….. 1 year 

 

Operating Conditions 

To ensure accurate readings use it only when 

ambient air is within this range: 

Temperature: 32 to 120°F 

Humidity: 10 to 90% RH (non condensing) 

 

Gasses Detected 

The GAS detects a wide variety of gasses, including 

some toxic gasses, and nuisance vapors. The 

following lists represents only a portion of the more 

common gasses it will detect. 

Summary of Contents for GD-3300

Page 1: ...User s Manual Combustible Gas Leak Detector Model GD 3300...

Page 2: ...le Gas Leak Detector with one hand to detect presence of combustible gases Audible and visual indicators help pinpoint leak source Adjustable tic rate helps eliminate background gas concentration in c...

Page 3: ...ombustible Gas Leak Detector as a result of a service call chances are someone has either smelled a combustible gas leak or someone has reason to believe gas may be leaking While your Combustible Gas...

Page 4: ...ion As a matter of routine ventilate the area you plan to work in Ventilation will help ensure the gas does not accumulate in large volume where it can attain its Lower Explosive Limit LEL LEL Lower E...

Page 5: ...e Switch 6 Earphone Jack 7 Tic Rate Sensitivity Adjustment 8 Probe Clip 9 Hand handle 10 Batteries cover Instructions Switch on the gas leak detector by sliding the ON OFF button and the READY light i...

Page 6: ...be tip detects a combustible gas the tic rate will increase and the instrument sounds a warbling tone while the ALARM light As the concentration of gas increases so does the tic rate If the situation...

Page 7: ...s In order to isolate the source of a leak you may need to move the wheel counter clockwise decreasing the sensitivity as the sensor moves closer Replacing the Batteries Replace your 1 5 volt size R14...

Page 8: ...lly damaged To replace sensor 1 Turn the instrument off 2 Remove the upper tip guard by pressing straight up from the alignment notch that separates the two halves of the tip guard 3 This is a sturdy...

Page 9: ...l Alarm Visible Audible at 10 LEL for Methane Can be calibrated for other concentrations or gases Warranty 1 year Operating Conditions To ensure accurate readings use it only when ambient air is withi...

Page 10: ...o Natural Gas o Propane o Butane o Methane o Acetone o Alcohol o Ammonia o Steam o Carbon Monoxide not to quantify o Gasoline o Jet Fuel o Hydrogen Sulfide o Smoke o Industrial Solvents o Lacquer Thin...

Page 11: ...10...

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