It only has a 30-second warm up and will run for up to 4 hours on its rechargeable batteries. Watch out: when inspecting and testing furnace heat exchangers for leaks, don't forget to look for other flue gas or carbon monoxide leak sources such as shown in our photo at left. Major Credit Cards and PayPal are accepted. When looking for small leaks, a high tic rate must be used. The unit comes with a protective case, rechargeable batteries and battery charger. Order offline: Print an and Mail or Fax your order to us. Galow can be reached by email: or by telephone: 914-474-6613.
What should you do about this gas test reliability problem? The difficulty of making sense of sensitive gas test instrument readings is illustrated by our photographs just above. This permits the user to not only detect that a combustible gas leak is present, but to follow the gas leak concentration to its source. What a great peace of mind to know that when we finally got it to the new house, we could check for gas leaks. When gas is detected, the tic r ate will increase, rotate the thumbwheel back to the steady tic, resetting the instrument to this new background level. Each unit includes its own rechargeable Ni-Cad batteries for years of use.
For example, flue gases that should be heavier than air and should be found accumulating at floor level may in fact be accumulating at ceiling level in a building where they are carried while mixed with other hot or warm combustion air products which rise by natural convection. We have no relationship with advertisers, products, or services discussed at this website. However, as carbon monoxide released from a heating appliance such as a furnace, boiler, or water heater is being produced by gas or possibly fuel oil, kerosene, coal or other bio fuel it is not going to be produced in pure nor isolated form. Recently I moved a large, multi-sectioned stainless steel propane grill from one house to the next. The object is to be sure we are examining air in the test area, not a local emission from a basically harmless sealant or component. The batteries take a couple of hours to fully charge. All feature automatic warm-up, are ideal for a tremendous range of uses, and are invaluable for safety in many applications.
The user can adjust the actual field sensitivity of the instrument using a knob visible at the lower right of the silver control panel in the photograph. I researched this model 8800A over the others and went to the manufacturer website and decide this was the exact model to get. This text may assist readers in understanding these topics. I was only then comfortable knowing that all of the fitting, fasteners, adapters, lines, everything was leak-free. So test instruments work best in the hands of a very experienced building investigator and instrument user. Gas detectors are always calibrated against a gas blend that is certified by the blending laboratory by use of analytical instrumentation for which a Certificate of Analysis is provided.
For example, a leaky heat exchanger in a heating furnace may leak detectable gases into the warm air plenum only until the blower fan comes on. Carson Dunlop Associates' provides extensive home inspection education and report writing material. But it will also respond to other substances that are miscible in air. This detector is simple to operate and works every time. Any suggestions for how I should proceed when I'm being told that everything is fine even when I have a meter reading gas? As the sensing tip is moved into test locations the operator listens for an increase in the tic rate. Gas leaks in any serious quantity will promptly change the tic rate to a continuous siren. Let the instrument stabilize, adjust it for a steady but fairly sensitive beeping tone, then enter the area to be inspected.
It is sensitive enough to detect small leaks at gas shut-off valves and through the aluminum bodies of automatic gas valves in equipment. Your breath will make the instrument respond, even if you're sober - because of its humidity. Move the instrument into higher concentrations of gas indic ated by increase tic rate until the leak is found. Readers should see for additional recommendations. At the opposite end of the building from the law office was a beauty parlor whose chemicals proved to be the odor source. These may include introducing of a tracer gas into heating equipment to test for leaks in a heat exchanger or flue.
The text is intended as a reference guide to help building owners operate and maintain their home effectively. We let the air clear and all was well. . If the instrument responds we don't know just which gas it is responding-to as it is very sensitive to a wide range of hazardous and combustible gases. If the siren sounds before the leak source can be identified, the air in the area is contaminated with heavy concentrations of gas. An screened porch was enclosed by solid walls in its lower half. You may find surprising results.
Opening that screw permits removing of the panel cover to expose the factory's rechargable battery pack. We include reference links to many articles that can help diagnose the source of dangerous carbon monoxide in buildings. That's because once the fan begins not only is building air in the plenum diluted, the pressurization of air around the heat exchanger may change the direction of a combustion gas leak. Galow specializes in residential construction including both new homes and repairs, renovations, and additions. The company includes this instrument usage advice that might help in the case you describe: The audible tic increases in volume when exposed to gases with 50 parts per million or more. Where to Buy the Tif 8800, 8800A, or 8850 Combustible Gas Analyzer or Where to Get Your Instrument Repaired Oct 9, 2011 Anonymous said: where to get it repaired? Ask a Question or Search InspectApedia Try the search box just below, or if you prefer, post a question or comment in the Comments box below and we will respond promptly.