Drager Polytron IR Fixed Gas Detector - Spec Sheet
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The Dräger Polytron IR is an explosion proof infrared gas detector that can continuously monitor combustible gases and vapors in harsh offshore environments. It uses infrared absorption to detect substances across a broad range and has a stainless steel body with drift-free optics. Two models detect different wavelengths and measurable ranges include 0-20% LEL or 0-100% v/v for methane.
![DRÄGER POLYTRON IR | 03
HART® handheld terminal ABB 691
Convenient operation with control
keys for direct access to submenus.
ST-5763-2004
THE DRÄGER POLYTRON IR OFFERS:
– Library including up to 38 substances
– SIL 2 (safety integrity level) certified
– Configurable measuring range
– Precise measurement
– No moving parts
– Fast, accurate response
– Dirty optics warning
– Long maintenance intervals
– Double compensating, non-focussing
optics (4 beams)
– Hermetically sealed SS 316 body
– Ex-approvals for worldwide use
– Dust-approval for zone 21, 22
– Multidrop capability HART®, 4 to 20
mA, RS 485
TECHNICAL DATA
Type Explosion proof gas detector with infrared sensor technology
Gases and ranges Combustible gases 0 to 5 … 100 %LEL (depending on substance)
and vapors 0 to 350 … ppm (depending on substance)
Methane 0 to 100 %v/v (type 334 only)
Longterm stability (drift) < 2 %LEL (measuring range 0 to 100 %LEL methane) / 2 years
Repeatability < 2 %LEL (measuring range 0 to 100 %LEL methane)
Response time t0…90 < 5 seconds
Output signal analog 4 to 20 mA
Output signals digital HART®, RS 485
Preventive maintenance function 2 mA in case of dirty optics
Fault signal < 1.2 mA
Signals for warning and maintenance configurable
Power supply 15 to 30 VDC, < 5 W, 3-wire
Ambient conditions Temperature – 40 to +65 °C / – 40 to +150 °F (UL variants)
– 40 to +60 °C / – 40 to +140 °F (IECEx variants)
Pressure 700 to 1300 hPa / 23.6 to 32.5 inch Hg
Humidity 0 to 100 %RH, non-condensing
Enclosure IP 66 and IP 67, NEMA 4 and 7
Size 125 mm x 180 mm x 155 mm / 4.9'' x 7.1'' x 6.1'' (W x H x D)
Weight 3.1 kg
Approvals UL, CSA Class 1, Div 1, Groups B, C, D
ATEX II 2G EEx de [ia] IIC T5, II 2D IP 6X T100°C EN 50281-1-1
IECEx Ex de [ia] IIC T5, Ex tD A21 IP6X T100°C
Explosion protection and performance approval
EN 61779-1
EN 61779-4
EN 50271
CE-mark: electromagnetic compatibility (directive 2004/108/EC)
SIL 2 (safety integrity level) certified](https://image.slidesharecdn.com/dragerpolytronirfixedgasdetector-specsheet-141120054207-conversion-gate01/85/Drager-Polytron-IR-Fixed-Gas-Detector-Spec-Sheet-3-320.jpg)
Drager Polytron IR Fixed Gas Detector - Spec Sheet
- 1. The Dräger Polytron IR is an explosion proof infrared gas detector for continuous monitoring of combustible gases and vapors. With its stainless steel body and drift free optics this gas detector is built for harsh offshore environments. Two models working with different wave-lengths cover a broad range of detectable substances. TECHNICAL INNOVATION The model type 340 extends the area of applications for the Dräger Polytron IR product line. The different wavelength of the Dräger Polytron IR type 340 offers detection of alkanes at an even higher sensitivity. The possible monitoring of cyclohexane presents one of various options for gas detection resulting from this innovation. With both transmitter models Dräger Poly-tron IR type 340 and type 334, Dräger defines the status quo of measurement technology for continuous monitoring of ambient air regarding combustible gases and vapors. The Dräger Polytron IR works based on the physical principle of infrared absorption. The innovative double com-pensating and non-focussing optics effec-tively compensates temperature and ageing effects. With its many field proved components it sets the standard for safety relevant measurement requirements. It is approved by certification that the Dräger Polytron IR can be used for SIL 2 (safety integrity level) safety functions. CONFIGURATION Flexible is the configurable measuring range for the Dräger Polytron IR: Type 334 offers 0 to 20 %LEL and up to 100 %LEL, alternatively 0 to 100 %v/v for methane. For the type 340, the full scale is configurable from 5 to 100 %LEL. Configuration is menu guided and easy to perform, using a HART® handheld terminal. CALIBRATION For the easy calibration of the Dräger Polytron IR, one gas needs to be selected from an internal list, and this gas can dif-fer from the gas to be measured. All data will be converted automatically to the substance to be monitored. So, the intricate use of factors for cross sensitivity calibration is no longer necessary. Thus for all Dräger Polytron IR transmitters there is only one calibration gas required, independent of the substance to be monitored. Dräger Polytron IR Fixed gas detector ST-3949-2004 ST-743-2006 Dräger Polytron IR Gas detector for reliable detection of combustible gases and vapors. Tel: +44 (0)191 490 1547 Fax: +44 (0)191 477 5371 Email: northernsales@thorneandderrick.co.uk Website: www.heattracing.co.uk www.thorneanderrick.co.uk
- 2. 02 | DRÄGER POLYTRON IR STAND-BY MODE (PREVENTIVE MAINTENANCE FUNCTION) Using a preventive maintenance function – stand-by mode – the Dräger Polytron IR does not immediately shutdown in case of dirty optics. Prior to providing a beam block fault signal, there will be a warning transmitted to the control system. The measurement continues in the back-ground, and it will be switched back to normal operation when measuring gas concentrations of more than 15 %LEL. Alarming in a hazardous situation and with it the complete safety functionality will be maintained. ST-5762-2004 Body of SS 316 stainless steel Accessories bump test adapter / flowcell Heated optics Connector for handheld terminal Stand-by mode A special warning signal informs about the degree of optics contami-nation.
- 3. DRÄGER POLYTRON IR | 03 HART® handheld terminal ABB 691 Convenient operation with control keys for direct access to submenus. ST-5763-2004 THE DRÄGER POLYTRON IR OFFERS: – Library including up to 38 substances – SIL 2 (safety integrity level) certified – Configurable measuring range – Precise measurement – No moving parts – Fast, accurate response – Dirty optics warning – Long maintenance intervals – Double compensating, non-focussing optics (4 beams) – Hermetically sealed SS 316 body – Ex-approvals for worldwide use – Dust-approval for zone 21, 22 – Multidrop capability HART®, 4 to 20 mA, RS 485 TECHNICAL DATA Type Explosion proof gas detector with infrared sensor technology Gases and ranges Combustible gases 0 to 5 … 100 %LEL (depending on substance) and vapors 0 to 350 … ppm (depending on substance) Methane 0 to 100 %v/v (type 334 only) Longterm stability (drift) < 2 %LEL (measuring range 0 to 100 %LEL methane) / 2 years Repeatability < 2 %LEL (measuring range 0 to 100 %LEL methane) Response time t0…90 < 5 seconds Output signal analog 4 to 20 mA Output signals digital HART®, RS 485 Preventive maintenance function 2 mA in case of dirty optics Fault signal < 1.2 mA Signals for warning and maintenance configurable Power supply 15 to 30 VDC, < 5 W, 3-wire Ambient conditions Temperature – 40 to +65 °C / – 40 to +150 °F (UL variants) – 40 to +60 °C / – 40 to +140 °F (IECEx variants) Pressure 700 to 1300 hPa / 23.6 to 32.5 inch Hg Humidity 0 to 100 %RH, non-condensing Enclosure IP 66 and IP 67, NEMA 4 and 7 Size 125 mm x 180 mm x 155 mm / 4.9'' x 7.1'' x 6.1'' (W x H x D) Weight 3.1 kg Approvals UL, CSA Class 1, Div 1, Groups B, C, D ATEX II 2G EEx de [ia] IIC T5, II 2D IP 6X T100°C EN 50281-1-1 IECEx Ex de [ia] IIC T5, Ex tD A21 IP6X T100°C Explosion protection and performance approval EN 61779-1 EN 61779-4 EN 50271 CE-mark: electromagnetic compatibility (directive 2004/108/EC) SIL 2 (safety integrity level) certified
- 4. 04 | DRÄGER POLYTRON IR ORDER INFORMATION Dräger Polytron IR UL Type 334 68 10 098 Dräger Polytron IR IECEx Type 334 68 11 650 Dräger Polytron IR IECEx Type 334 complete set* 68 11 635 Dräger Polytron IR UL Type 340 68 10 820 Dräger Polytron IR IECEx Type 340 68 11 640 Dräger Polytron IR IECEx Type 340 complete set* 68 11 645 *The complete set contains an EEx e junction box, splash guard and mounting set, already pre-assembled. Accessories Dräger Polytron IR splash guard 68 09 750 Dräger Polytron IR calibration adapter 68 09 780 Dräger Polytron IR flowcell 68 09 450 Dräger Polytron IR gassing adapter 68 09 946 Dräger Polytron IR process cuvette 68 10 780 Dräger PRC 3000, remote control software 83 18 906 Dräger Polytron IR bump test adapter 68 10 985 Dräger Polytron IR insect guard 68 10 162 Dräger Polytron IR hydrophobic filter 68 10 519 Mounting set 68 09 951 HART® handheld terminal ABB 691 (FM approval) 83 17 616 HART® handheld terminal ABB 691 (ATEX approval) 83 17 531 Charger HHT ABB 691 83 17 532 Accu pack HHT ABB 691 83 17 533 Adapter cable HHT ABB 691 83 15 437 HART® is a registered trademark of the HCF, Austin, TX. Tel: +44 (0)191 490 1547 Fax: +44 (0)191 477 5371 Email: northernsales@thorneandderrick.co.uk Website: www.heattracing.co.uk www.thorneanderrick.co.uk