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The Simrad GDU is an acoustical detector that responds to pressurised gas leaks.
The GDU does not detect specific value s of LEL or ppm rather, it responds to the sound generated by escaping gas at ultrasonic frequencies.
Such signals are generated when leakage occurs at sonic velocity; this requires a driving pressure of at le as t 2 bar.
The detected sound is proportional to the leak rate (mass flow rate). In basic terms, the greater the leak rate (large leak ), the greater the ultrasound emitted. The unit responds instantly to leaks operating over wide dB range by monitoring the characteristic ultrasonic sound pattern of a gas leak (frequencies above hum an hearing).
Back ground noise is blanked out by a threshold set by the control room.
Acoustic gas leak detectors complement traditional gas detection methods used in refineries, gas plant, and offs h ore installations.
No calibration.
Early warning of pressurised leaks
Wide detection range
No maintenance
No field calibration
Standard 4-20 m A output
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The simple to use Model 21-070 Gas Leak Detector is engineered for easy, one hand operation of detecting leaks in GC systems or any pressurized gas system in laboratory or industrial locations. The instrument can be operated with little or not training. Simply turn the instrument on, zero, and point the instrument’s thin pencil-tip probe at the area of interest. The probe is designed to reach difficult and confined locations to pinpoint the exact problem location. An LED display visually indicates leaks. An audible alarm also signals a leak. No messy soap solutions. No system contamination. Response time is less than 2 seconds for all gases. Helium leaks of 1 x 10-5 cc/sec are easily detected, as are other gases such as refrigerant leaks of 1.1 x 10-4 cc/sec.
The Model 21-070 features microprocessor control with computer interfacing (optional), selectable sensitivity settings, as well as flash memory for saving various settings, i.e., alarm mode, alarm set-point, alarm volume, peak hold delay, LED brightness, sensitivity, and pump speed. The 21-070 Mini Gas Leak Detector weighs only 1.05 lbs (476 grams) and has a rechargeable Ni-Cd battery. A charger is also included.
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LumaSense's SF6 Leak Detector offers an unmatched combination of performance and convenience. Based on the company’s Photoacoustic Spectroscopy (PAS) technology, the system offers highly accurate, reliable and stable quantitative gas analysis and detection. The growing environmental requirements and pressures regarding the use of SF6 make LumaSense’s system a coveted tool designed for everyday use.
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The HDP-9900 leak detector is the ideal instrument for detecting leaks in pressurized cables, storage tanks or any closed system that can be pressurized with the tracer gas. The HDP should be used with Helium as a tracer gas. Helium, a Noble gas, is inert and does not react with other elements which make it the ideal tracer media.
Key features
- Sensitivity down to 25 PPM of tracer gas
- Uses Helium as the primary racer gas in pressurized applications
- Rechargeable Ni-MH battery provides 8 hours of continuous operation
- Can be operated in automatic and manual modes
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GasCheck R2pc is designed specifically for the leak detection and measurement of refrigerant and air-conditioning gases including CFC's, HFC's and HCFC's.
The instrument is light weight and handheld enabling the user to locate a leak and to take a direct leak rate measurement in a simple one handed operation.
Robust and reliable, GasCheck R2pc has a choice of display units either as a gas weight loss, gm/yr or as a concentration of gas leakage in air, ppm.
Sourcing a leak is made simple as when a leak is detected above the set alarm level an audible alarm is sounded and an LED flashes leaving the user in no doubt that a leak has been detected.
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The DS2 Docking Station provides the ultimate flexibility for managing your gas monitors wherever you use them. The DS2 gives you all of the benefits of consistent automated calibration, record keeping, battery recharging and instrument diagnostics for your monitors to limit your liabilities and safety hazards. Two way wireless and/or ethernet connectivity enables you to link up to 100 stand-alone Instrument Docking Stations (IDSs) from remote locations anywhere in your facility and relay the data back to one central database for total instrument management. A graphical user interface tool (DSSAC) allows an administrator to view operations on each Docking Station from a network computer, making it easy to track instruments, print reports, set events and change parameters for any location.
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LAND has a range of dust, smoke and particulates monitors which are the most advanced available, using patented measurement technology to give high accuracy.
The analysers (which comprise a transmitter and a reflector) are mounted across the stack, the optical measurement technique uses no moving parts, giving the highest possible reliability with very low maintenance.
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DETECT FUITES makes it possible to immediately locate any gas or air leak .
Checking of the sealing of pipings, taps, connections, valves of drains, without stopping their operation.
Usable for all types of gas and compressed air, including nitrogen and CO2. Warning, not to use on pure oxygen.
Detect even the mini-leaks, as well as the leaks under low pressure (7 mbar).
Higher ergonomics: All way product, usable with a capillary for a better precision of application, or with a diffuser '' broad cone '', to quickly check wider surfaces.
Biodegradable, non flammable, nontoxic and non corrosive product.
JELT DETECT FUITES Aerosol 650 ml Ref. 005501
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Detectors for gas analysis vary almost infinitely in design, materials, and principles of operation. GOW-MAC offers a variety of thermal conductivity detectors, each varying on internal geometry, lead length, tubing length, construction material, and filaments (WX, AuW, Ni). We can assist you in making a wise choice of analytical system and preferred TCD model for work in the plant and laboratory, whether qualitative or quantitative, organic, inorganic or physical chemistry. To better understand what we offer, ask us for our sales brochure SB-10 and SB-13.
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