Data Sheet
Pressure transmitters
Type DST P40M
Harsh environment marine application
The P40M pressure transmitter has been
designed specic for pressure monitoring of
marine applications such as Ballast water
treatment systems, Exhaust gas scrubbers,
Desalination and Sea water cooling systems
where high corrosion resistance and longevity
are essential for the continued operation of
auxiliary & propulsion systems onboard the
vessel.
The enclosure of the pressure transmitter is
machined out from a single piece of Titanium
to eliminate any structural weaknesses.
Titanium is exceptionally resistant to a broad
range of acids and alkalis, as well as Sodium
Chloride and polluted waters. Titanium’s
corrosion resistance together with its low
density, high strength and erosion resistance,
make this pressure transmitter ideal for
numerous chemical processing and marine
uses.
The pressure sensing element is made from
ceramic Al2O3 96% which has excellent
chemical immunity and is suitable for nearly all
aggressive media. The pressure transmitter
works following the piezo resistive principle
and the Wheatstone bridge is screen printed
directly on one side of the ceramic diaphragm
by means of Thick Film technology
AI366043639180en-000402
Pressure transmitters, type DST P40M
Features
• Designed for use in corrosive industrial environments such as desalination systems, medical industry, chemical
processing, chlorate containing liquids, hydro-carbon processing, etc.
• Enclosure Titanium grade 2
• Temperature compensated
• Reverse polarity protected
• Gauge (relative)
• Wetted parts: Titanium & Ceramic
• Ceramic Al2O3 96%
• High linearity and low hysteresis value
• RoHS compliance
© Danfoss | Climate Solutions | 2021.06 AI366043639180en-000402 | 2
Accuracy (incl. non-linearity, hysteresis and repeatability)
< ± 1% FS (typ.) @ ambient temperature
Compensated temperature range
Total error band within compensated temperature range
P:10-90%FS > 10 mio cycles
Ambient temperature range
Depending on electrical connection see Electrical connections
Storage temperature range
IEC 60068-2-6
20 g, 25 Hz – 2 kHz
A0: Male
A1: Pg 9
A6: Pg 11
A9: Pg 13.5
Enclosure (IP protection
fullled together with mating connector)
Electrical connection, 4 – 20 mA output (2 wire)
Pin 1: + supply
Pin 2: ÷ supply
Pin 3: not used
Pin 4: Ground connection to sensor house
Pressure transmitters, type DST P40M
Product specication
Technical data
Table 1: Technical specications
Table 2: Pressure range
Electrical connections
Table 3: Electrical connections
© Danfoss | Climate Solutions | 2021.06 AI366043639180en-000402 | 3