TRANSMITTERS
PRESSURE AND DIFFERENTIAL PRESSURE TRANSMITTERS
Discover the selection of pressure transmitters offered by Comhas: reliable devices for measurements differential pressure, on e absolute.
Ideal for industrial systems, HVAC, environmental monitoring, automation and chemical processes, our transmitters combine high precision, robustness and flexibilityComhas offers solutions suitable for both extremely low pressure ranges (even a few Pascals) and high pressures, with ATEX/IECEx certified versions for critical environments.
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Comhas as an official distributor offers a range of transmitters from market leading brands such as Dwyer Instruments e Aplisens accompanied by the offer of a complete selection of branded transmitters Comhas, the result of many years of experience in the measurement instrumentation sector.
Advantages of pressure transmitters offered by Comhas
- Certified precision: Pressure transmitters available with accuracy classes up to ยฑ0,25% or better, to ensure reliable measurements even in sensitive applications.
- Wide range, even for low fields: pressure transmitters starting from very few Pascals up to very high ranges, to adapt to different needs without losing sensitivity.
- Modern outputs and protocols: standard analog signals (4-20 mA, 0-10 V) but also options with digital protocols such as HART.
- Local display and practical adjustments: adjustable zero/span (also digitally), LCD display, remote or local reading options.
- Certifications and environmental robustness: ATEX/IECEx versions, watertight enclosures, resistant materials; also suitable for corrosive liquids or gases, heavy-duty industrial use.
- Compact and integrated solutions: OEM models, miniaturized sensors, integrated versions with other parameters (e.g. status monitor), components that reduce space and installation time.
Trust Comhas to get the ideal pressure or differential pressure transmitter for your needs.
Explore our full range of transmitters now and request a free quote or personalized consultation from our technical team to identify the best solution for your system.
โข NEW Dwyer low field pressure transmitter.
โข 180ยฐ rotatable display for easy reading
โข Programmable LCD display.
โข Measure speed.
โข Accuracy: +/- 1% fs
โข Minimum settable range: 0 โ 25 Pa
- Accuracy ยฑ0.25%, ยฑ0.50%, ยฑ1.0%, ยฑ2.0%
- Device economic e compact suitable for OEM applications
- Process Connection Optional 1/8โ NPT or BSPT
- Usage: Air and compatible non-combustible gases
- Stability: < ยฑ1 % / year FS
โข NEW Dwyer differential pressure transmitter with innovative design
โข Programmable LCD display.
โข Includes a terminal block that allows for quick and easy wiring, reducing installation time
โข 32 adjustable ranges
โข Accuracy: +/- 0,5% FS
โข Min. settable range: 0 โ 15 Pa
- Various fields available starting from 0-30 Pa
- Zero and span digitally adjustable via buttons
- With LCD display - 4-20mA output
โข Analogue local indication.
โข 4-20 mA retransmission.
โข Robust.
โข Display 4,3ห color LCD touchscreen with color status indication: green for good, yellow for warning and red for alarm
โข Monitoring of more parameters. View up to 4 parameters including pressure, relative humidity, temperature, air exchange and/or door status
โข Ideal for measurements of low differential pressure
โข Communications: BACnet MS/TP and Modbusยฎ RTU as standard
โข RSME box e USB-C/USB-A Drive included
โข Display 4,3ห color LCD touchscreen with color status indication: green for good, yellow for warning and red for alarm
โข Monitoring of more parameters. View up to 4 parameters including pressure, relative humidity, temperature, air exchange and/or door status
โข Designed for critical applications a low differential pressure
โข Communications: BACnet MS/TP and Modbusยฎ RTU as standard
โข RSME box e USB-C/USB-A Drive, Calibration certificate included.
- Various fields available starting from 0-60 Pa
- Dismissal 4-20mA + 2 relay SPDT
- With LCD display
โข Zero elevation and programmable filter.
โข Programmable linear or quadratic output.
โข Analog output 4โฆ20mA.
โข Modbus communication
- Pressure range from 0 to 1000 mbar, adjustable
- Output 0 โฆ 10 V or 4 โฆ 20 mA. Other signals on request
- Differential pressure, overpressure and vacuum measurement
- Adjustable ranges: depending on the type between -100 Pa and 1 bar
- Adjustable output signal (only with 3-wire type): 0 โ 10 V; 4 โ 20 mA
- Differential pressure, overpressure and vacuum measurement
โข 3 Instruments in one: pressure gauge, alarms, 4-20mA transmission.
โข Accuracy ยฑ0.25% fs
โข Waterproof case.
โข LCD display.
โข Ranges from 0-1 inch H2O to 0-100 psi.
Differential pressure sensor for ventilation systems, 24V. 8 selectable fields, from -50 to +3500 Pa.
Differential air pressure sensor with regulator function, to ventilation systems.
Freely selectable fields, from -100 to +3500 Pa. Adjustable K-factor for the flow rate calculation.
Differential air pressure sensor with regulator function, to ventilation systems.
Freely selectable fields, from -100 to +3500 Pa. Factor K adjustable for flow rate calculation.
โข Fields from 0 to 10 mBar, up to 0 โ 1000 Bar
โข Dismissal 4-20mA or 0-10V
โข Executions Exia to intrinsic safety (gas and dust) and Exd explosion-proof (approved ATEX e IECEx)
โข Available certificazione naval DNV e SIL 1
โข Now also available version with MODBUS RTU protocol
โข Various electrical process connections
โข Gold-plated diaphragm for hydrogen applications
โข Version with optional local
โข Relative, absolute and vacuum pressure transmitters for liquids, gases and steam.
โข Accuracy 0,1%.
โข Range ability 100:1.
โข Now available the new PZ316 version with fully welded 316 stainless steel body, IP66 execution, stainless steel label fixed to the body.
โข Relative, absolute and vacuum pressure transmitters for liquids, gases and steam.
โข Accuracy 0,1%.
โข Range ability 100:1.
โข Now available the new PZ316 version with fully welded 316 stainless steel body, IP66 execution, stainless steel label fixed to the body.
Ranges up to 600 bar rel.
Absolute and relative pressure
Output signal: 4โฆ.20 mA or 0-10 V
Robust, versatile and high-precision device
For measurements of liquids or gases requiring high precision
Output signal: 4โฆ.20 mA or 0-10 V
โ Output signal 4 โฆ 20 mA + HART protocol
โ ATEX Exia intrinsically safe
โ Static pressure up to 320 bar
โ Accuracy 0.1%
โข Differential pressure transmitter for air or gas.
โข Min range: 0-20 Pa.
โข Max. range: 10 kPa.
โข Output: 4-20 mA + HART protocol
โข Accuracy: ยฑ0,1% fs
โข Zero elevation and programmable filter.
โข LCD display
โข Programmable linear or quadratic output.
โข Analog output 4โฆ20mA.
โข Hart protocol.
โข New APR-2000ALW/G transmitter, for low pressures.
โข Accuracy +/- 0,1%
โข 4-20 mA output + HART
โข SIL2/SIL3 executions available
โข Suitable for liquids or gases.
โข 4 to 20mA, 0 to 20mA or 0 to 5 mA + HART protocol.
โข ATEX intrinsically safe or ATEX explosion-proof versions.
โข PED compliance (97/23/EC).
โข Fully locally programmable.
โข Static pressure: max up to 1000 Bar.
โข Accuracy ยฑ0,075% fs
โข Hastelloy diaphragm.
โข SIL 2 certificate available.
โข DNV naval certificate.
- Exit signal 4โฆ20 mA + HART 5 / HART 7 protocol
- Precision 0,1%
- Safety version SIL2/SIL3
- Intrinsic safety certificate ATEX, IECEx, FM, CSA (FM), INMETRO
- Explosion-proof certificate ATEX, IECEx, FM, CSA (FM), INMETRO
- The fully welded sensor ensures the oil system will remain leak-proof for many years.
- Possibility to configure the measuring range locally
- Digihelicยฎ Differential Pressure Controller ATEX/IECEx Exd Certified
- Settable analog outputs;
- 2 SPDT relays;
- Ideal instrument for pressure, velocity and flow measurement applications
โข Dwyer Transmitter is now available from Comhas in Atex/IECEx Exd execution as a single instrument
โข Monitoring differential pressure, air speed e volumetric flow rate
โข All pressure ranges can be configured as unidirectional or bidirectional, for a total of 32 ranges
โข Optional LCD display
โข Switch type: each setpoint has 1 type C relay (SPDT). Setpoint adjustment via front knobs.
โข Repeatability ยฑ2%
โข The Dwyerยฎ Series 605 pressure gauge/transmitter is now available from Comhas in Atex/IECEX Exd execution as a single instrument
โข Analogue indication of differential pressure
โข 4-20 mA output โ 2 wires
โข Output 4-20mA / 0-10V
โข Accuracy up to +/-0,25%
โข Output 4-20mA / 0-10V
โข Accuracy up to +/-0,25%
โข Low fields up to 25 Pa
โข Output: 4 รท 20 mA, 2 wires.
โข Zero and Span adjustment: ยฑ 1 mA, non-interactive.
