DAX 420-IR

The DAX 420-IR detector was designed to continuously measure the presence of various gases in the air.
Its operating principle, infrared, gives it its major benefits:
- very long lifetime,
- increased gas detection selectivity,
- immunity to poisons and,
- low maintenance cost.
By connecting it to a Dalemans unit or to any other instrument that can receive a 4..20 mA signal, you will benefit from a highly flexible installation.

MODEL DAX 420-IR
SENSING HEAD Stainless steel 1.4404 (AISI316L)
SINTERED METAL FILTER
JUNCTION BOX Aluminium
DIMENSIONS / WEIGHT 170 x 145 x 90 mm / 1.400 g
SENSOR TYPE / SIGNAL Infrared / 3-wires 4..20mA current loop
ADJUSTMENTS Zero and calibration by internal potentiometers
MEASURING
RANGE*		 BUTANE (C4H10) 0 - 100 % LEL
METHANE (CH4)
PROPANE (C3H8)
CARBON DIOXIDE
(CO2)		 0 - 0.5 % vol., 0 - 1 % vol., 0 - 2 % vol.,
0 - 4% vol.
RESOLUTION

± 0.5 % full scale < 50% LEL

± 1% full scale >50% LEL
RESPONSE TIME (T90) < 30 sec.
EXPECTED OPERATING LIFE SPAN > 5 years
ELECTRICAL CHARACTERISTICS 19 - 30 Vdc / Max. 90 mA
STORAGE TEMPERATURE -20ºC to +50ºC
TEMPERATURE RANGE -20ºC to +50ºC
AMBIENT HUMIDITY 0 - 95 % HR
CABLE CROSS SECTIONAL AREA 0.75 - 2.5 mm2 (solid wires)
MAX. CABLE LENGTH 1.000 m
LOOP RESISTOR 50 - 750 ohms
INGRESS PROTECTION IP 6X (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)
EQUIPMENT GAS GROUPING IIC (methane, propane, ethylene, hydrogen, acetylene)
AMBIENT TEMPERATURE Tamb= -20ºC to +55ºC
CERTIFICATES FTZU 09 ATEX 0182

 

 

Files

DOWNLOAD DATASHEET
DOWNLOAD DATASHEET