Combustible Gas Detector
Contents
1. ensure the unit is working correctly Now the unit is ready for use If the battery power is in sufficient state but the sensor approaches known leaks without any responses do not use the instrument please return for repair In conjunction with the increased tick rate the leak size indicator will light from bottom to top as combustible gas concentration grows Search the general area of the leak When a detectable compound enters the sensor the tick rate speeds up If you are searching for a heavy leak source please lower the sensitivity in a clear air by turning the adjustable knob until the leak size indicator turns off TO CHARGE BATTERY 1 2 3 R During operation if the power indicator is blinking it is necessary to charge the battery Install the battery into the battery compartment properly cover battery door and fasten screws Turn off the instrument connect the charger into a power socket of 50 60 Hz and insert the plug into the jack on the bottom of the instrument A green charge indicator indicates that the battery power is low and still under charge a new battery needs to be charged for 16 hours before usage When the charge indicator turns from green to orange the battery is fully charged Please take it off the charger Specialty Tools amp Instruments2. Test Equipment 99 Washington Street Depot Melrose MA 02176 Phone 781 665 1400 1 800 517 8431 Toll Free 1 800 517 8431 NGD8800 User s Manual Combustible Gas Detector INTRODUCTION This instrument detects combustible gases It includes a rechargeable battery pack and charger It is an excellent instrument to use to pinpoint combustible gas vapor residue or leaks and verify safety situation of potential hazardous locations SOME APPLICATIONS ARE e Gas lines and pipes Propane gas refill station e Fuel in marine bilges Exhaust and fuel leaks e Liquid or gas fired heating systems e Check manholes for safety Note Although the unit will respond to high levels of Carbon Monoxide it should not be used as a detector for this gas in normal room or working atmospheres It is used to pinpoint a leak as described in the Operating Instructions HOW IT WORKS After the automatic warm up when the sensor of the instrument detects vaporous and gas from combustible compound the LED signal will light up and change with the increasing tick rate to locate the combustible leaks This helps the user to take effective measures or actions to clear potential hazard FEATURES Leak size indication Audial and Visible e Auto fast warm up Adjustable sensitivity Low battery indication Rechargeable battery e Charge protection to prevent overcharge or over current e Double color LED indicates charge state e ON OFF sw
3. itch e Sensing tip e 14 Flexible gooseneck probe unfasten probe knob to readjust rotation Includes Rechargeable battery charger and hard carry case onw gt Figure 1 A Speaker B Charge state indicator c eh size indicator the larger the concentration the more LED will e lit D Sensitivity adjust knob turn clockwise to increase sensitivity turn counter clockwise to decrease sensitivity E Power indicator LED blinking indicates low battery Please turn off the unit and recharge the battery F ON OFF switch G Sensing tip H Flex probe probe knob may be loosened to rotate the probe I Battery compartment unscrew to open battery door and install the battery pack with the contact upwards Close battery door and fasten the screws J Probe knob OPERATION INSTRUCTIONS p po gt a D T 8 Turn the unit off and turn the sensitivity knob fully counter clockwise Turn the unit on in a non contaminated atmosphere with the slide switch the power indicator will light up Power indicator shows the battery power is sufficient it ensures precise detection After the unit is turned on it will auto warm up within 110 seconds a ticking sound will be heard Adjust the sensitivity control until the first leak indicator lights up and the ticking frequency increases Approaching known leak source the leak size indicate lights will increase with the rapid ticking Above steps are necessary to
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