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The 984M differential pressure measuring transmitters cover a pressure range from 0...100 Pa to max. 0...250 kPa. To ensure optimum adjustment to the respective pressure-related application, the models are equipped with multiple jumpers.
A new feature is the selectable output signal of 0…10 Volt or 4…20mA, which the user himself can set by means of a jumper on site during the installation.
The new model can also be automatically zeroed quite easily by the user himself. This is done by simply disconnecting the measuring transmitter from the pressure and pressing a button.
The ability to select between two different pressure ranges is already known from the previous model. Version 984M.323104b, for example, allows the user to select between the pressure ranges 0...250 and 0...500 Pascal.
A key advantage offered by the 984M.3x3114b model is the option of equipping it with a 3.5-digit LED display, whose brightly illuminated red figures can also be easily read in difficult conditions.
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The differential pressure transmitters of the 985M series are used for measuring differential pressure, positive pressure and vacuum.
They offer 2 pressure ranges which can alternatively be selected by a jumper. The IP65 body protects the pressure transducer even in difficult environments.
Monitoring gaseous, non-aggressive media. Possible areas of application are:
air-conditioning and clean rooms
building automation
environmental protection
fan and blower control
valve and flap control
filter and blower monitoring
fluid and level monitoring
control of air flows
For optimum adaptation to the pressure application, the
transmitter can be switched between two pressure ranges.
The factory setting is the sensitive range 1, which is selected
by fitting a jumper. Removing the jumper activates the
non-sensitive range 2.
The output signal of the 3-wire version is configurable. The
factory setting is for a 0 ...10 Volt output signal, but this can be
changed to 4 ... 20 mA by removing the jumper. The 2-wire
version is only available with a 4 ... 20 mA output signal.
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DPT Flow provides a new and easy way of measuring a flow rate of a centrifugal fan.
DPT Flow is designed for centrifugal fans, and the flow rate is based on differential pressure value measured directly from the fan.
DPT Flow can be used to display the flow value on-site and to send the out-put value to control system.
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• Ranges from 0/+100 Pa to -2000 mbar/+2000 mbar (according to model)
• Configurable intermediate and centre zero ranges
• Air velocity and airflow functions (optional)
• Simultaneous display of 2 parameters
• 2 outputs 4-20 mA or 0-10 V (4 wires), RS 232, 2 RCR relays 6 A / 230 Vac
• 2 visual (dual color LED) and audible (buzzer) alarms
• Output diagnostics
• ABS IP 65 housing, with or without 2-line backlit display
• Quick and easy mounting using the “1/4 turn” system with wall-mounting plate
Join our distribution network all over the word....Contact us !
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These are the real low pressure switches 930 Climair to monitor air flow, fans or filters starting from 20 Pascal up to 4.000 Pascal. OEM switches for manufacturers of air handling units, or individually packed for the field service and installation business.
The products can be marked on the packing to your company CI with labels.
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Differential Pressure Switch
Pressure Switch PS600The switches can be used in ventilation, air conditioning and in particular for monitoring air ducts, air filters and fans. The switches are suitable for air and non-aggressive gases.
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DPT – Differential Pressure Transmitter for low pressures
The DPT differential pressure transmitter is used for detecting over- and under-pressure and differential pressure. The DPT is suitable for air and non-aggressive gases. Typical applications are monitoring and control of ventilation and air-conditioning, fans and filters.
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The Series 211 Differential Pressure Transmitter can accurately measure positive, negative, or differential pressure and send the corresponding 4-20 mA output signal. The Series 211 Differential Pressure Transmitter is not position sensitive and can be mounted in any orientation without compromising accuracy. It also features a power LED, so you always know when the transmitter is operating. The compact, lightweight design makes installation simple and easy.
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The Series 251 wet/wet differential pressure transmitter utilizes a double diaphragm sensor technology that outperforms standard double sensor products in accuracy, reliability and static operating pressure. This differential pressure sensing technology offers 0.25% accuracy with static operating pressures up to 1000 PSI. The Series 251 features 316 stainless steel construction designed to meet NEMA 4X (IP 65) standards. The transmitter also offers exceptional field flexibi ity with a 5:1 turn down and comes standard with a certificate of calibration.
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With the VEGADIF an effective system for the measurement of differential pressure, level and flow is available.
The instruments are suitable for differential pressure as well as positive and negative gauge pressure.
VEGADIF is the ideal solution for all types of applications in many industries:
- in process control industries
- in chemical industries
- in pollution control.
The measured products can be gaseous, steamy, liquid or even highly viscous.
Product and process wetted materials and construction types ensure reliable use even in aggressive or abrasive products as well as in applications with high hygienic requirements e.g. in the food processing and pharmaceutical industries.
User features
- Spans from 1 mbar to 40 bar
- Nominal pressure up to 420 bar
- Accuracy better than 0,1 %
- Longterm stability better than 0,1 %/12 months
- highly overload resistance silicium sensors
- Continuous self-monitoring
- Quick set-up and easy operation
- Unpressurized adjustment (dry adjustment)
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Yokogawa has more than 45 years' experience in the development, design, and manufacture of pressure sensors and pressure transmitters. The DPharp series of digital pressure transmitters use a differential pressure high accuracy resonance (DPharp) sensor that represents one of the most revolutionary advances in transmitter technology.
EJX Series
The new DPharp EJX transmitters are the latest addition to the DPharp family's EJA series. DPharp EJX transmitters employ a next-generation multi-sensing technology that provides virtually the highest level of performance and precision in the market.
EJA Series
The DPharp EJA series of intelligent differential pressure and pressure transmitters features high performance, durability, and reliability. The pressure detector, the core of the transmitter, uses a silicon resonant sensor that has proven to be highly reliable in the field and offers a complete product lineup.
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Analog and digital indicating units and transmitters for liquid level, differential pressure and flow measurement. Media 6 allows for connection of the dp-cell to your PC in the logistics center.
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MSI sensor interface IC
The MSI integrated interface IC is a multi-channel Sensor interface IC. It generates dynamically to a maximum of 3 Sensor signals by means of current- and voltage- controlled resistance bridges (among other things switch- selectable input sensitivity) and provides subse-quent evaluation systems with A/D- converted signals via digital interface.
Furthermore, the IC enables the equalization of temperature due to an on Chip integrated temperature measurement or loadable reference charts. As well it supplies connected Sensors also with power supply. The IC in particular distinguishes itself besides the on Chip integrated functionality by a high signal solution in the case of simultaneous stability as well as a low power consumption.
The IC is suitable for evaluation of differential Sensor signals, as those that are supplied by pressure Sensors, Hall Sensors and Sensors, that work according to the principle of a resistance bridge (e.g. extension bridges, Piezo or Magneto-resistive Sensors).
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Kavlico P992 and P993 Low Range Differential Pressure Sensors are ideal for Variable Air Volume (VAV) systems, filter pressure monitoring, duct air flow, static pressure monitoring, gaseous leak detection, pneumatic controls, and medical equipment applications. Supplied by a regulated 5 Vdc power supply, the P992 and P993 provide an amplified linear output proportional to differential pressure.
The P992 replaces existing Kavlico models P582, P592, P593, P792, and P892 and can be ordered in any configuration to match those footprints. For many years, those Kavlico products have set the industry standard for low range differential pressure measurements for a wide variety of HVAC applications. Additionally, the P992 and P993 can be specified for PCB mounting with a small footprint. The P993 is specifically configured for control systems that are integrated into damper actuators.
Features:
* Low Power Consumption
* Amplified Output
* Frequency Output Option
* Temperature Compensated
* Multiple Mounting Options
* PC Board Mount
* P592/P593 & P792/P892 Footprint Compatible
* Pressure Ranges from +/-1" H20 through 10" H20
* No Position Sensitivity
* Superior Output Signal Stability
* EMI/RFI & ESD Protection
* Made in USA
* RoHS Compliant
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The ARES Series is a small, low cost pressure transducer which is able to measure pressures as low as 0 to 5 inches of water, 0 to 10 inches of water, 0 to 15 inches of water, and 0 to 1 psi. Sensitivity to extremely low pressures combined with the small physical size make this device ideally suited for applications such as HVAC, medical equipment, and flow monitoring. The GA100 series has a 4V span from 0.50V to 4.50V and the GA200 series has a 3.75V span from 0.25V to 4.00V. The plastic housing design for the ARES Series makes the device very user friendly. The housing is designed to be printed circuit board mountable, requiring no additional hardware. Built into the housing are self-locking pins which insure a secure fit between the housing and the PCB. The pressure ports are 3/16" barbed ports which mate with industry standard 1/8" or 3/16" ID tubing. These ports are mounted 90° to the printed circuit board to allow other boards to be located above the sensor. The ARES Series utilizes a unique sensor circuit design to provide ASIC digital error correction and signal amplification while maintaining an analog signal path. This technique delivers the high level of error correction associated with microprocessor-based circuits, while maintaining a typical bandwidth of >1 kHz generally found only in analog circuits. The result is a pressure sensor that offers the ultimate in low cost and high accuracy, while preserving the fast response and smooth output inherent to silicon sensors.
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Honeywell manufactures a wide range of wet/wet and wet/dry differential pressure sensors. Rugged stainless steel construction with mechanical overload stops can handle the most demanding applications. These units cover ranges from 0.5 psid to 10,000 psid and deliver accuracies up to 0.1%. Outputs include 4-20mA, 0-20mA, 0-5V, 1-10V, 0-2VDC, and ±5VDC. RS-232 and RS-485 digital output is also available. Custom engineering and design solutions available.
Contact us for a copy of our Sensors for Test and Measurement catalog.
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Sensortechnics is a leading manufacturer and distributor of a wide range of sensors and fluid control devices. The product portfolio includes basic pressure sensors, rugged transmitters, submersible level sensors and customised pressure sensing systems from 1 mbar up to 1000 bar as well as liquid level sensors and switches, flow, oxygen and force sensors. Additionally, Sensortechnics offers ultrasonic air bubble, air-in-line, liquid level and fluid monitoring detectors. Fluid control devices include miniature solenoid valves, diaphragm pumps and electronic pressure controllers.
Sensortechnics has more than 25 years of experience in providing highly customised sensing products and in the development of complex integrated fluid control systems for OEM customers worldwide.
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PS 27
Basic sensor for simple applications - mounting on top-hat rails,
very little hysteresis, contact points, IP65 protection class.
The PS 27 differential pressure transducer is a basic sensor for simple applications with very little hysteresis, temperature dependence or zero-point drift.
In addition to differential pressure data, the PS 27 also records positive and negative overpressures, and is suitable for measuring air and all non-aggressive gases. Zero-point calibration can be performed via an external control signal. A jumper is available for selecting the output signal.
A built-in adapter for top-hat rails allows the PS 27 to be mounted on top-hat rails (e.g., in a control cabinet) with no additional accessories required. With the optional switching output, a visual or audible alarm can be triggered whenever values fall above or below a threshold parameter. The PS 27 is a simple, precise pressure transducer for applicati
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PUC 24 Process monitoring device for clean rooms
Sensitive measurement technology
Demands for increased quality in nearly every area of industry have led to more and more processes being conducted under clean-room conditions. Ensuring these conditions means monitoring room pressure, temperature and humidity. The new PUC 24 process monitoring device from halstrup-walcher has been specially designed for just such applications.
In essence, the PUC 24 is a differential pressure transducer that utilizes an inductive measurement principle to provide very high resolution of 0.1 Pa at a retest precision of 0.1%. Cyclical self-calibration of the zero point ensures proper measurement stability. The measurement range of ±100 Pa is freely scalable. Also available are inputs for temperature and humidity sensors; these can be set from 0-10 V or from 0/4-20 mA. All measurement values can be clearly read on a graphic LCD. Additional contact outputs are available for separate alarm signals. The device communicates with the master control module via a Profibus. The housing designed for front-flush installation is particularly innovative. Function keys are integrated into a stainless-steel keypad that forms a single smooth surface along the front of the housing. A mounting frame put in place when setting up the clean room makes the PUC 24 easier to install – four screws are all you need. This solution is the product of practical experience and simplifies more than just installation: the simple mounting system makes it possible to remove units quickly and effortlessly for calibration purposes or when switching units to accommodate changes in the process.
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Differantial Pressure Transducers
Model 8310, 8311, 8313, 8314, 8315, 8316
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These pressure switches are normally used to detect filter clogging. They are available in electrical or visual contact versions.
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Furnace & Water Heater Air Proving Switch
The Mamco / Lefoo LF-31 series switch was designed for the HVAC industry where safety and reliability are essential. This series has also proven to be a viable solution for many pneumatic OEM applications.
Available in vacuum, differential and pressure models, with fine silver or gold cross bar contacts. The LF-31 is capable of detecting pressures, as low as, .05" of water. Factory calibrated units maintain set point tolerances of +/- 10% over a temperature range of -40º F to 185º F due to it's molded silicone diaphragm and the stability of it's glass filled polyester body.
MAMCO offers multiple electrical terminations and mounting options, as well as, bleed holes and three different size orifices. This switch series is not only the leading product in the market offering the highest quality and reliability but is also the most economical.
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DP indicating switch
With more than one million BARTON DPU-based instruments in service around the world today, Cameron's Measurement Systems division is a premier supplier of reliable and accurate chart recorders, indicators, switches and pneumatic controllers. Originally developed in the early 1920s, our differential pressure technology features a welded bellows assembly that increases accuracy while dramatically reducing the effects of wear. To facilitate quick and easy repairs all DPU based instruments are supported with pre-calibrated exchange or repaired sub-module bellows assemblies.
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MultiBoss/DP Differential Pressure Transducer
MultiBoss/DP Differential Pressure Transducer -- Whether you are monitoring inches of water or psi, the MultiBoss/DP does the job. Select a sensing head from one of six available ranges to suit your needs. Absolute, gage or differential pressure-- just specify the type. Powered from 12-30VDC, 4-20ma linear signal, 3-wire hookup, 35ma max current drain. Optional digital meter continuously displays the reading in 1/2" high, easy to read characters.
Housed in a 5x5x4" steel, wall mount enclosure, it has external hose barbs for easy tubing hookup. MSHA classified G, H and L for use in hazardous methane areas of underground coal mines. Compatible intrinsic safety barriers are available, along with all necessary protective regulators and accessories. The MultiBoss/DP is a high quality, US-manufactured product, combining top performance, safety and economy for your benefit.
- Offset: Zero pressure can be set at mid scale to read +/- pressures.
- Output: 4-20mA, linear
- Field switchable: four ranges: approx. 9%, 18%, 50%, 100%.
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Industrial/OEM/ Pressure Transducers (Capacitance/Inductive)
Model 230:
Electrical Output Voltage :
0 to 5 VDC
0 to 10 VDC
Electrical Output Current :
4 to 20 mA
Type of Pressure :
Differential (can be wet both sides)
Applications
- Fuel Cells
- Energy Management Systems
- Pump Speed Control
- Filter Condition Monitoring
- Process Control
- Refrigeration Equipment
- HVAC
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E2405 series differential pressure transmitters are intended for measurement of low absolute, differential or gauge pressure of air or non-corrosive gases. The main application area is the building automation, eg filter control.
- Low absolute, gauge or differential pressure measurement in HVAC applications
- Analog output 4-20 or 0-10 V
- Output scale from 50 Pa to 100 kPa (0,5 mbar to 1 bar)
- RS485 Modbus RTU interface option for direct Fieldbus networking
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P 26
Intelligent differential pressure transducer
with scalable measurement range.
Sensitive measurement technology in innovative housing
Demands for increased quality in nearly every area of industry have subjected pressure gauges to sophisticated demands as well. These include clean room monitoring and the ability to monitor sterile environments in the packaging machines used in products for such industries as foods and pharmaceuticals. The new P 26 differential pressure transducer from halstrup-walcher has been specially designed to meet these demands.
The P 26 is a differential pressure transducer that meets these particularly sophisticated demands. Measurement ranges between 100 Pa and 100 kPa are freely scalable from 10 to 100%, and provide the option of switching to other units of measurement like mmH2O, mmHg, etc. Cyclical self-calibration of the zero point ensures a high level of measurement stability. Two cutoff points are available that can be set freely along the entire measurement range; these allow the user to connect visual or audible alarms that would be triggered any time values fall above or below limits. All measurement values can be clearly read on an optional graphic LCD. The instrument can, if necessary, communicate with a master control unit via an RS 232 interface and can be mounted either on a wall or on top-hat rails.
A hand-held unit can be used as a configurator for the one-time calibration when using more than one of the affordable P 26 pressure transducer without a display.
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Differential pressure transmitter type FDA602D
This measures the differential pressure in liquid and gaseous
media indirectly using two absolute pressure sensors.
This makes it less expensive but more robust with respect to
asymmetrical overload.
The differential pressure range should be at least 5% of the
standard pressure range.
Each side of the sensor incorporates two pressure
connections. The transmitters can thus be used easily and
conveniently in pressure pipes.
It incorporates a high-speed, high-precision microprocessor.
All reproducible errors affecting the pressure sensors, i.e.
involving non-linearity and temperature dependency, can be
completely eliminated by means of mathematical error
compensation.
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Differential Pressure Unit
With more than one million BARTON DPU-based instruments in service around the world today, Cameron's Measurement Systems division is a premier supplier of reliable and accurate chart recorders, indicators, switches and pneumatic controllers. Originally developed in the early 1920s, our differential pressure technology features a welded bellows assembly that increases accuracy while dramatically reducing the effects of wear. To facilitate quick and easy repairs all DPU based instruments are supported with pre-calibrated exchange or repaired sub-module bellows assemblies.
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Honeywell offers a full line of pressure transmitters for a wide variety of industrial applications.
ST 3000 Series 100 - Absolute
Honeywell ST3000 Series 100 absolute pressure transmitters are used in applications in which high accuracy in the vacuum range of pressure is needed to include low-pressure measurement in vacuum distillation columns, where energy savings are directly proportional to the vacuum in the column.
ST 3000 Series 100 - DP
Honeywell’s ST 3000 S100 differential pressure transmitter can be used with any primary flow element to provide proven, repeatable flow measurement, from furnace combustion airflow rate to hydrostatic tank gauging.
ST 3000 Series 900 DP
Honeywell's ST 3000 Series 900 Differential Pressure Transmitters bring proven smart technology to a pressure measurement applications, from furnace combustion airflow rate to hydrostatic tank gauging. It can be used with any primary flow element to provide proven, repeatable flow measurement.
ST 3000 Series 900 Gauge
Honeywell's ST 3000 Series 900 gauge pressure transmitter applications include high-pressure measurement in boilers, fuel feeds and high-pressure reaction vessels in the petrochemical and hydrocarbon recovery industries or in any location where accuracy and reliability are crucial to safe, economical operation.
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