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DAT420_MAN02_EN.docx • V1R1
2
DAT 420
2.
SPECIFICATIONS
MODEL
DAT 420
Material
Sensing head
Sintered metal filter
Junction box
Stainless steel 1.4404 (AISI 316L)
Stainless steel 1.4404 (AISI 316L)
Aluminium
Size / Weight
193 x 145 x 90 mm / 1500 g
Sensor type
Electrochemical
Output signal
2-wire 4..20 mA current loop
End loop resistor
50 - 750 ohms
Adjustments
Zero and calibration by internal potentiometers
Target gases *
Ammonia
Carbon monoxide
Chlorine
Hydrogen sulphide
Nitrogen dioxide
Oxygen
Sulphur dioxide
NH
3
CO
Cl
H
2
S
NO
2
O
2
SO
2
Range
100 ppm - 1,000 ppm - 5,000 ppm
300 ppm - 500 ppm - 1,000 ppm
10 ppm - 50 ppm
50 ppm
20 ppm - 50 ppm
25 %
20 ppm
Resolution
± 1.5 % full scale
Response time (T90)
< 45 sec.
Expected operating life span
> 2 years
Supply voltage
15 - 30 Vdc
Supply current
Max. 30 mA
Storage temperature
-40 °C to +80 °C
Operating conditions
Temperature range
Ambient humidity
Intermittent humidity
Pressure
-10 °C to +40 °C
20 - 90 % HR
10 - 99 % HR
90 - 110 kPa
Cable
2 x 0.5 mm² twisted and shielded pair (max. 1,000 m)
Cable entry
1 x M20 / 6.1 - 11.7 mm (other size available upon request)
Ingress protection
IP6X (dust tight)
Approval
Hazardous areas
Zone 1 or 2 (gas) - Zone 21 or 22 (dust)
Gas group
IIC (methane, propane, ethylene, hydrogen, acetylene)
Marking
II 2G Ex d IIC T6
II 2D Ex tD A21 IP6X T85 °C
Ambient temperature
Tamb = -10 °C to +40 °C
Certificate
FTZU 09 ATEX 0074
Standards
EN 60079-0:2006, EN 60079-1:2007
EN 61241-0:2006, EN 61241-1:2004
* Non-exhaustive list. Other target gases are available upon request. Please contact Dalemans for further information.
Table 1 : Technical specifications
