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Differential pressure transmitter 401
The pressure transmitters of Type 401 detect extremely fine air pressure changes and are used for the control and optimization of control loops. Due to ideal dimensioning and homogeneous manufacturing of the 2-component membrane, they are highly sensitive and offer excellent reproducibility even in the range below 20 Pascal.
- 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 401
Product feature
Pressure measuring range
0 ... 8 mbar (Relative and differential)
Response time
<10 ms
Load change
<10 Hz
Sensor weight
45 g
Field of application
Media
Air; Neutral gases
Medium temperature
0 ... 70 °C
Permissible overload on one side
100 mbar (for a short time at room temperature)
Burst pressure
200 mbar
Ambient condition
Ambient temperature
0 ... 70 °C
Storage temperature
-40 ... 70 °C
Material
Housing
Polycarbonate (PC)
Membrane
LSR (Liquid Silicon Rubber)
Measuring element
Ceramic Al2O3
Electrical data
Output
0,5 ... 4,5 V
Power supply
10,4 ... 18 VDC (Power supply up to 28 VDC possible (with increased switch-on drift, see graphic))
Permissible load
>15 kOhm (against GND)
Current consumption
<8 mA (at nominal pressure without load)
Inverse-polarity protection
Mechanically guaranteed
IP protection class
IP 00
Protection class
3
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
Differential pressure transmitter 401
Differential pressure transmitter 401
Download the product-specific technical documents here in the language of your choice or open it in a new window . You can find all product and business-relevant documents on our central download page
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EN-GB
Data Sheet 401
Data Sheet
PDF
DE
Datenblatt 401
Data Sheet 401
Data Sheet
PDF
FR
EN-GB
DE
Operating Instruction 401 403
Operating Instruction
PDF
DE
401 Baumusterprüfbescheinigung Gas DVGW
401 Type examination certificate gas DVGW
Certificate
PDF
Differential pressure transmitter 401
Order number
Accessories
100098
Angle type B
100251
Pressure orifice for pulsating pressures
100295
Angle type A
101817
RAST 2.5 connector
With cable; 110 cm; 3-pole
102976
Fastening screw
for wall thickness 1 - 2 mm; Screw length 6 mm (min. 2 screws required)
104551
Calibration certificate
111668
RAST 2.5 connector
With cable; 30 cm; 3-pole
112282
RAST 2.5 connector
With cable; 150 cm