Pressure transmitters

Trafag transmitters are used for the sensing of pressure and the transmission of pressure proportional electrical signals.

Pressure transmitters from Trafag for monitoring of pressure in liquids and gases, with a wide range of options to fit most applications. Read more about type approved product for shipbuilding and ATEX under the dedicated product categories.

The pressure transmitters are primarily based on thin-film on steel sensors that offers excellent longterm stability.

Read more about different options

Options
• Various process and electrical connections
• Absolute or relative pressure measurement
• Analogue or bus interface
• With/without electrical switches
• CE, EX or Marine Approvals
• Wide range of material options for sensor and sensor housing

Method of measuring
The sensors used in the pressure transmitters are designed inhouse at Trafag as well as the electronics with an ASIC specially designed for the task. To ensure excellence in quality and performance Trafag has an accredited calibration laboratory inhouse.

Steel sensors
Pressure transmitters with thin-film on steel sensors offer excellent long-term stability and is the given choice for most applications.

Advantages:
• Very good long-term stability
• Resistant to high medium temperatures
• All wetted parts are stainless steel (without additional material)
• Very good overpressure resistance, ideal for nominal pressures up to 2000 bar

Ceramic Sensors
Pressure transmitters with thick-film on cheramic sensors are the option for applications with aggressive media when steel sensors are not compatible.

Advantages:
• Resistant to aggressive media
• Ideal for low pressure ranges
• No filling with liquids behind the membrane
• Excellent cost-performance ratio

Piezoresitive sensors
Piezoresistve sensors are used in pressure transmitters ideal for low pressure or when very small changes in pressure are monitored.

Application: Hydraulics
Accuracy: ±0.5% FS
Measuring range: 0…2.5 to 0…600 Bar
Pressure connection: G1/4” male, et al.
Sensor technology: Thin film on steel
Output: 4…20 mA, 0.5…4.5 V, 0…5V, 1…5 V, 1…6 V, 0…10V, 0.1…10.1 V, 0.5…4.5 VDC ratiometrisk, 1 PNP, 2 PNP

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Application: Hydraulics
Accuracy: ±0.3% FS
Measuring range: 0…0.2 to 0…600 Bar
Pressure connection: G1/4” male, et al.
Sensor technology: Thin film on steel
Output: 4…20 mA, 0.5…4.5 V, 0…5V, 1…5 V, 1…6 V, 0…10V, 0.1…10.1 V, 0.5…4.5 VDC ratiometrisk, 1 PNP, 2 PNP

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Application: Mobile hydraulics
Accuracy: ±0.5%, ±0.3% FS
Measuring range: 0…2.5 to 0…700 bar
Pressure connection: G1/4” male, et al.
Sensor technology: Thin film on steel
Output: CANopen bus protocol

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Application: Mobile hydraulics
Accuracy: ±0.4 % FS
Measuring range: 0…1 to 0…100 bar
Pressure connection: G1/2
Sensor technology: Thin film on steel
Output: 4…20 mA, 0…5 V, 1…6 V, 0…10 V

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Application: Test benches
Accuracy: ±0.15%, ±0.1% FS
Measuring range: 0…2.5 to 0…600 Bar
Pressure connection: G1/4” male, et al.
Sensor technology: Thin film on steel
Output: 4-20 mA, 0…5 VDC, 1…6 VDC, 0…10 VDC, 0.5…4.5 VDC ratiometric

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Application: Measuring and test benches
Accuracy: ±0.3% FS
Measuring range: 0…0.2 to 0…600 Bar
Pressure connection: G1/4” male, et al.
Sensor technology: Thin-film-on-steel
Output: 4…20 mA, 0.5…4.5 V ratiometric, 0…5 VDC

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Application: Test benches
Accuracy: ±0.5%, ±0.3%, ±0.15%, ±0.1% FS
Measuring range: 0…0.2 to 0…600 bar
Pressure connection: G1/4” male, et al.
Sensor technology: Thin film on steel
Output: CANopen bus protocol

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Application: Test benches
Accuracy: ± 0.1, ± 0.05 % FS
Measuring range: 0…0.1 to 0…100 bar
Pressure connection: G1/4
Sensor technology: Piezoresistive
Output: 4…20 mA, 0…5 VDC, 0…10 VDC

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Application: Railway
Accuracy: ±0.3% FS
Measuring range: 0…6 to 0…600 bar
Pressure connection: G1/4” male, 1/4” NPT male, 7/16”-20UNF SAE4 male, et al.
Sensor technology: Thin film on steel
Output: 4…20 mA, 1 PNP, 2 PNP

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Application: Low pressure
Accuracy: ±0.8%, ±0.5%, ±0.3%, ±0.15% FS
Measuring range: 0…0.2 to 0…2.5 bar
Pressure connection: G1/4” male, et al.
Sensor technology: Thin film on steel
Output: 4…20 mA, 0…10 VDC, 0…5 VDC, 0.5…4.5 VDC ratiometric

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Application: Low pressure
Accuracy: ±1.0%, ±0.5%, ±0.3% FS
Measuring range: 0…0.1 – 0…40 bar
Pressure connection: G1/4” male, G1/4” female, NPT 1/4” male, G3/4
Sensor technology: Thick film on ceramic
Output: 4…20 mA, 0…5 VDC, 0…10 VDC, 0.5…4.5 VDC ratiometric

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Application: Aggressive media
Accuracy: ±0.5% FS
Measuring range: 0…1 to 0…400 bar
Pressure connection: G1/4” male, G1/4” female, NPT 1/4” male, G3/4. et al.
Sensor technology: Thick film on ceramic
Output: 4…20 mA, 0…5 VDC, 0…10 VDC, 0.5…4.5 VDC ratiometric

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Application: Aggresive media
Accuracy: ±1.0 %, ±0.5 %, ±0.3 % FS
Measuring range: 0…0.1 to 0…250 bar
Pressure connection: G1/4” male, G1/4” female, G1/2
Sensor technology: Thick film on ceramic
Output: 4…20 mA

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Application: Aggressive media
Accuracy: ±0.5% FS
Measuring range: 0…1 to 0…100 bar
Pressure connection: G1/4” female/male, G1/2
Sensor technology: Thick film on ceramic
Output: 4..20 mA, 0..10 V, 0..5 V, 1..6 VDC, switchable mA or V

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Application: Mobile hydraulics
Accuracy: ±0.5% FS
Measuring range: 0…2.5 to 0…600 bar
Pressure connection: G1/4, et al.
Sensor technology: Thin film on steel
Output: 4..20 mA, 0..10 VDC, 0..5 V, 1..6 VDC, switchable mA or V

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Application: Shipbuilding
Accuracy: ±0.5%, ±0.3% FS
Measuring range: 0…0.2 to 0…700 bar
Pressure connection: G1/4” male, et al.
Sensor technology: Thin film on steel
Output: 4…20 mA, 1 or 2 PNP

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Application: Shipbuilding
Accuracy: ±0.5%, ±0.3% FS
Measuring range: 0…2.5 to 0…600 bar
Pressure connection: G1/4”, G1/2”, R1/4”, et al.
Sensor technology: Thin film on steel
Output: 4…20 mA, 0…10 VDC

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Application: Shipbuilding
Accuracy: ±0.5%, ±0.3% FS
Measuring range: 0…2.5 to 0…2500 bar
Pressure connection: G1/4”, G1/2”, R1/4”, et al.
Sensor technology: Thin film on steel
Output: 4…20 mA, 0.5…4.5 VDC ratiometric

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Application: Shipbuilding
Accuracy: ±0.5%, ±0.3% FS
Measuring range: 0…2.5 to 0…250 bar
Pressure connection: G1/4” female, Flange connection, et al.
Sensor technology: Thin film on steel
Output: 4…20 mA

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Application: ATEX & IECEx
Accuracy: ±0.5 %, ±0.3% FS
Measuring range: 0…0.4 to 0…2000 bar
Pressure connection: G1/4”, G1/2”,1/4” NPT, et al.
Sensor technology: Thin film on steel 
Output: 4…20mA

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Application: ATEX & IECEx
Accuracy: ±0.5%, ±0.3% FS
Measuring range: 0…0.2 till 0…10 bar
Pressure connection: Type 1 f, M 10×1, Type 2 m, M 22×1
Sensor technology: Thick film on ceramic
Output: 4…20 mA

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Application: Shipbuilding, Water treatment, Level of oils and fuels
Accuracy: ±0.5%, ±0.3% FS
Measuring range: 0…0.01 till 0…2 bar
Pressure connection:
Sensor technology: Thick-film-on-ceramic
Output: 4…20 mA

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Application: Shipbuilding
Accuracy: ±0.5%, ±0.25%, ±0.1% FS
Measuring range: 0…0.1 to 0…25 bar
Pressure connection: Open; Closed; G1/4
Sensor technology: Piezoresistive
Output: 4…20 mA, 0…10 VDC

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Application:
Accuracy:
Measuring range: -0.8 … 100 bar
Pressure connection: G1/4” female
Sensor technology:
Output:

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