Ultrasonic gas detector Polytron®8900 UGLD
Dräger
About This Product
■Features
The Dräger Polytron 8900 UGLD gas detector is an area monitor for early detection and warning of high-pressure gas leaks in outdoor plant equipment and equipment.
By analyzing the sound of gas leaks using an ultrasonic sensor, it is possible to detect gas leaks earlier than with conventional gas detectors that measure the concentration of leaked gas. Additionally, gas leaks within the target area can be detected immediately without being affected by external factors such as wind direction.
■Ultrasonic sensor method - system for early detection of gas leaks
Gas detection systems commonly used to monitor gas leaks in high-pressure gas piping and containers in plants can only detect gas leaks that occur near gas sensors.
Additionally, due to the influence of external environments such as wind, general gas sensors may experience a detection delay or may not detect gas clouds. Dräger's Polytron8900 UGLD is able to detect high-pressure gas-related leaks immediately after a gas leak, without being affected by this external environment.
Efficient early gas leak detection not only avoids unnecessary shutdowns but also reduces time and costs associated with overall plant operations.
■Achieve safety redundancy for gas detection systems
Dräger Polytron 8900 is the latest ultrasonic gas leak detection in the Polytron 8000 series. All gas detectors in this series have a common design and a common user interface.
This common user interface reduces training and maintenance burden for users. The Polytron8900 UGLD's reliable early gas leak detection capabilities make it the ideal instrument for redundant existing flame and gas detection systems.
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Product
Ultrasonic gas detector Polytron®8900 UGLD
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Handling Company
Dräger
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Categories
1 Models of Ultrasonic gas detector Polytron®8900 UGLD
| Product Image | Part Number | Price (excluding tax) | Analog signal output | Certification CE mark | Certification CSA | Certification IECEx | Certification UL | Digital signal output | Display | Environmental conditions | Housing Display housing | Housing Sensor housing | Housing cable insertion port | Housing dimensions Height x Width x Depth | Housing protection class | Housing weight approx. | Measuring range | Power consumption | Power supply | Relay specifications | Sensor performance Detectable range Radius | Sensor performance Frequency band | Sensor performance Minimum pressure | Sensor performance Response time | Sensor type | Target gas | Type |
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Polytron®8900 UGLD |
Available upon quote |
・Normal operation 4~20mA ・Maintenance Constant current 3.4mA or 4mA±1mA 1Hz modulation (adjustable) ・Failure <1.2mA |
・ATEX (European Directive 2014/34/EU) ・Electromagnetic compatibility (European Directive 2014/30/EU) ・Low voltage (European Directive 2014/35/EU) |
・Class I ・Division 1 ・Group A, B, C, D ・Class I ・Zone 1 ・Group IIC ・Temperature class T4 |
・Ex db [ia] IIC T4/T4 Gb ・-40℃≤Ta≤+70℃ ・Ex db eb [ia] IIC T4 Gb ・-40≤Ta≤+70℃ "Ex e" type |
・Class I ・Division 1 ・Group A, B, C, D ・Class I ・Zone 1 ・Group IIC ・Temperature class T4 |
HART® | Backlit graphic LCD display with 3 status LEDs (green/yellow/red) |
・Temperature -40~＋70℃ (with relay) ・Pressure 700~1,300mbar ・Humidity 0~100% R.H. |
Stainless steel SS 316L | Polyamide 6 |
・3/4”NPT X3 for cable gland ・Or M20 X3 |
280x150x130mm |
・NEMA 4X&7 ・IP65/66/67 |
5.0kg |
・0~100% (equivalent to 55~110dB) - Typical alarm threshold is background noise level + 10% ultrasonic sensor signal |
・With relay ・Remote 100mA (24V) |
・10~30V DC ・3-wire system |
・2 alarm relays ・1 point failure relay ・SPDT 5A@230VAC ・5A@30VDC |
・6.5~65 feet (2~20m) Target gas type ・Leak rate ・Due to background noise |
18kHz~80kHz | >2bar (29psi) Methane | <3 seconds | PVCC-coated piezoelectric microphone with automatic self-test sound generator |
·hydrogen ·methane ·ethylene ·propane ・CO2 ·nitrogen ・Flammable and toxic gases such as hydrogen sulfide |
・“Ex d” type with flameproof explosion-proof structure ・Or “Ex de” type combined with increased safety explosion-proof construction |
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