The Dräger Polytron® 8900 UGLD transmitter is an early warning area monitor for detecting high-pressure gas leaks in outdoor industrial process environments. Thanks to an ultrasonic acoustic sensor, it responds earlier than conventional gas detectors because it registers the sound of leaking gas instead of measuring the concentration of accumulated gas clouds. As gas escapes, leaks are immediately detected in the surrounding area, regardless of the wind direction.
• Ultrasonic sensor technology – the early warning system for gas leaks
• A perfect complement to your gas detection system
• Delivers results that are easy to understand
• Can even detect gas leaks in loud industrial environments
• Robust design and fully-sealed sensor
For detecting high-pressure gas leaks in outdoor industrial process environments. Thanks to an ultrasonic acoustic sensor, it responds earlier than conventional gas detectors because it registers the sound of leaking gas instead of measuring the concentration of accumulated gas clouds. As gas escapes, leaks are immediately detected in the surrounding area, regardless of the wind direction. Environmental influences such as wind can delay or prevent a gas cloud from being detected by gas sensors. On the contrary, the DrägerPolytron 8900 UGLD is not affected by environmental factors and detects a high-pressure gas leak as soon asgas escapes. Effective early gas leak warnings can prevent unnecessary shutdowns, saving time and money.
Type
Explosion proof / flameproof enclosed transmitter (“d”) or combined with increased safety (“d/e”)
Gases
Flammable and toxic gases such as hydrogen, methane, ethylene, propane, CO2, nitrogen and hydrogen sulphide
Measurement ranges
0-100% equivalent to 55-110 dB; typical alarm setting 10% UGLD signal above background
Display
Back-lit graphic LCD display; 3 status LEDs (green/yellow/red)
Sensor Type
PVCC coated piezoelectric microphone with built-in automatic self-test sound generator
Sensor Performance
Response Time < 3 sec Minimum Pressure > 2 bar (29 psi) Methane
Coverage Radius 6.5ft -65 ft depending on gas type, leak rate and background noise
Frequency Range 18 kHz – 80 kHz
Electrical data
Analogue signal output 4 to 20 mA
Digital signal output HART®
Power supply 10 to 30 V DC, 3-wire
