DAX 3 F

The DAX 3F detector was designed to continuously measure the presence of various explosive gases in the air and also the presence of solvent vapours, hydrogen and hydrocarbons. Its measurement principle, catalytic combustion, gives it its major benefits: - very short response time, - accuracy and reliability of measurements. By connecting it to a Dalemans unit, you will obtain a very high performance installation. ATEX certified, this detector is especially suitable for the industrial sector, whose applications are located in an explosive atmosphere.

Benefits and advantages of the DAX 3 F

  • Continuous explosive gas detection: Monitors combustible gases such as methane, propane, hydrogen and hydrocarbons, as well as solvent vapours, using catalytic sensor technology.
  • Fast and reliable response: Response time of less than 30 seconds and a measurement range of 0–100% of the Lower Explosive Limit (LEL).
  • ATEX and IECEx certification: Suitable for industrial installations with potentially explosive atmospheres, in accordance with the zones and conditions specified in its certifications.
  • Integration with Dalemans control panels: Allows the detector to be connected to Dalemans gas control panels via a 3 mV Wheatstone bridge signal.
  • Robust construction for industrial environments: Features an AISI 316L stainless steel sensor head, aluminium junction box and IP6X protection rating.
 
MODEL DAX 3F
SENSING HEAD Inox 1.4404 (AISI 316L)
SINTERED METAL FILTER
JUNCTION BOX Aluminio
DIMENSIONS / WEIGHT 170 x 145 x 90 mm / 1400 g
SENSOR TYPE / SIGNAL Catalytic (Pellistor) / 3-wire mV (Wheatstone bridge)
MEASURING RANGE 0 - 100 % LEL
RESOLUTION ±3 % full scale < 60 % LEL ±5 % full scale > 60 % LEL
RESPONSE TIME (T90) < 30 sec.
EXPECTED OPERATING LIFE SPAN > 2 years
SENSOR CHARACTERISTICS* DAL17 DAL21
SUPPLY VOLTAGE 2,00 V 2,00 V
SUPPLY CURRENT 175 mA ± 20 mA 300 mA
POWER CONSUMPTION 0,4 W 0,75 W
STORAGE TEMPERATURE -40 ºC to +80 ºC
OPERATING TEMPERATURE -20 ºC a +55 ºC for T6 temperature class -20 ºC a +70 ºC for T5 y T4 temperature class
AMBIENT HUMIDITY 20 - 90 % HR
INTERMITTENT HUMIDITY 10 - 99 % HR
PRESSURE 90 - 110 kPa
CABLE CROSS SECTIONAL AREA 1,5 - 2,5 mm2 (solid wires)
MAX. CABLE LENGTH Refer to the installation instructions of the control unit
INGRESS PROTECTION IP6X (dust tight)
CABLE ENTRIES 1 x M20 / 6,1 - 11,7 mm (other size upon request)
HAZARDOUS AREAS Zones 1 or 2 (gas) - Zones 21 or 22 (dust)
EQUIPAMENT GAS GROUPING IIC (methane, propane, ethylene, hydrogen, acetylene)
EQUIPAMENT DUST GROUPING IIIC (conductive dust)
STANDARDS EN 60079-0:2009, EN 60079-1:2007, EN 60079-31:2009 IEC 60079-0:2007, IEC 60079-1:2007, IEC 60079-31:2008
APPROVAL (ATEX + IECEX) II 2G Ex db IIC T6 - T4 II 2D Ex tb IIIC Tx ºC
AMBIENT TEMPERATURE Tamb = -20 ºC a +55 ºC for T6 and T85 ºC Tamb = -20 ºC a +75 ºC for T5 and T100 ºC Tamb = -20 ºC a +90 ºC for T4 and T135 ºC
CERTIFICATES FTZU 09 ATEX 0313XIECEx FTZU 10.0007
 

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