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.
| 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
|
|
