The DAX 3F-C detector was designed to continuously measure the presence of various explosive gases such as methane, propane and butane in the air.
Its measurement principle, catalytic combustion, gives it its major benefits:
– very short response time,
– accuracy and reliability of measurements.
By connecting it to a Model E or F Dalemans unit, you will have an installation that provides the best value for money.
ATEX certified, this detector is perfectly suited to boiler room applications.
| MODEL |
DAX 3F-C |
| SENSING HEAD |
Stainless steel 1,4404 (AISI 316L) |
| SINTERED METAL FILTER |
| JUNCTION BOX |
Glass-fibre reinforced Polyester |
| DIMENSIONS |
139 x 80 x 55 mm |
| WEIGHT |
640 g |
| SENSOR TYPE |
Catalytic (Pellistor) |
| OUTPUT SIGNAL |
3-wire mV (Wheatstone bridge) |
| MEASURING RANGE |
0 – 100 % LEL |
| RESOLUTION |
± 3 % of measuring range < 60 % LEL
± 5 % of measuring range < 100 % LEL
|
| RESPONSE TIME (T90) |
< 30 sec. |
EXPECTED OPERATING LIFE
SPAN |
> 2 years |
| SENSOR CHARACTERISTICS* |
DAL 50 |
DAL-AC (acetylene) |
| SUPPLY VOLTAGE |
2,50 V ± 0,25 V |
2,00 V ± 0,10 V |
| SUPPLY CURRENT |
170 mA ± 10 mA |
145 – 160 mA |
| POWER CONSUMPTION |
0,5 W |
0,4 W |
|
| STORAGE TEMPERATURE |
-10 ºC to +50 ºC |
| OPERATING CONDITIONS |
|
| TEMPERATURE RANGE |
-10 ºC to +50 ºC |
| 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 (cable diameter 6 – 12 mm) |
| HAZARDOUS AREAS |
Zones 1 or 2 (gas) – Zones 21 or 22 (dust) |
| EQUIPMENT GAS GROUPING |
IIC (methane, propane, ethylene, hydrogen, acetylene) |
| STANDARDS |
EN 60079-0:2006, EN 60079-1:2007, EN 60079-7:2007
EN 61241-0:2006, EN 61241-1:2004
|
| APPROVAL |
II 2G Ex d e IIC T6
II 2D Ex tD A21 IP6X T85 ºC
|
| AMBIENT TEMPERATURE |
Tamb = -10 ºC to +50 ºC |
|
