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Differential pressure transmitter 403
The pressure transmitters of Type 403 are designed for condensing boiler optimization in gas-fired heating appliances. All materials used are resistant to fuel gas. In combination with the pressure transmitters of Type401, an electronic air-gas compound can be realized.
- Specifically developed for condensing boiler optimization
- Very dimensionally stable due to a special membrane geometry
- Highly sensitive and long-term stable due to ideal dimensioning
- Best reproducibility even in the lower pressure range (< 20 Pascal)
Differential pressure transmitter 403
Product feature
Pressure measuring range
0 ... 8 mbar (Relative and difference)
Response time
<10 ms
Load change
<10 Hz
Sensor weight
45 g (without accessories)
Field of application
Media
Air; Neutral gases; Flammable gases
Medium temperature
0 ... 70 °C
Permissible overload on one side
100 mbar (for a short time at room temperature)
Bursting pressure
200 mbar
Leakage rate
<5 cm³/h (Air, at nominal pressure)
Ambient condition
Ambient temperature
0 ... 70 °C
Storage temperature
-40 ... 70 °C
Material
Housing
Polycarbonate (PC)
Membrane
NBR with fuel gas approval
Measuring element
Ceramic Al2O3
Electrical data
Output pressure
0,5 ... 4,5 V
Supply voltage
10,4 ... 18 VDC
Permissible load
>15 kOhm (against GND)
Current consumption
<8 mA
Inverse-polarity protection
Mechanically guaranteed
IP protection class
IP 00
Protection class
3
Electrical connection
RAST 2.5 connector (3-pole)
Installation guide
Installation orientation
Pressure connections downwards (Membrane horizontal (recommendation)); Pressure connections on the side, signal approx. 0.13 mbar lower than effective pressure. (Membrane vertical (by arrangement))
Assembly
Snap-on mounting for sheet thicknesses from 1 to 2 mm; Mounting bracket type A / type B
Approval
EC type examination certificate
CE-0085BP0459 (DVGW) in accordance with DIN EN 1854
Gas Appliances Directive
2016/426/EG
Differential pressure transmitter 403
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EN-GB
Data sheet 403
Data Sheet
PDF
FR
EN-GB
DE
Operating Instruction 401 403
Operating Instruction
PDF
DE
403 Baumusterprüfbescheinigung Gas DVGW
403 Type examination certificate gas DVGW
Certificate
PDF