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Trafag AG sensors & controls
Data Sheet EXP 900/904/912

Data Sheet EXP 900/904/912

Product catalog summary

Overview: The document is a technical data sheet for the Trafag Ex Pressostat models EXP 900/904/912, designed for use in hazardous environments with gas and dust explosion risks. It highlights the rugged construction, versatile mounting options, and high protection rating (IP66).

Applications: Suitable for environments requiring robust pressure and temperature monitoring, with options for aluminum or stainless steel housing.

Technical Specifications:

Measuring Principle: Bellow
Temperature Range: Media: -40°C to +150°C, Ambient: -50°C to +65°C
Pressure Range: -0.9 to 40 bar
Output Signal: 1 Floating change-over contact (SPDT)
Protection: Ex d e IIC T6 Gb for gas, Ex tb IIIC T80°C Db for dust
Repeatability: ±1.0% FS

Product Variants: The document lists various models with different pressure ranges, overpressure limits, and fixed switching differentials. Dimensions and ordering codes are provided for customization.

Environmental and Mechanical Data:

Protection: IP66
Vibration Resistance: 5-100 Hz with varying specifications
Shock Resistance: 50g/11ms
Mounting: Any position, with a maximum torque of 25 Nm
Weight: Approximately 710 g

Electrical Specifications: Details on microswitch ratings, electrical connections, and approvals are provided, including resistive and inductive load ratings for various voltages.

Additional Information: Links to further documentation, including data sheets and instructions, are provided for more detailed guidance.

Catalog excerpts

Ex Pressostat Swiss based Trafag is a leading international supplier of high quality sensors and monitoring instruments for measurement of pressure and temperature. Rugged aluminium housing, option: housing stainless steel Protection IP66 Any mounting position possible Ex d e IIC T6 Gb Ex tb IIIC T80°C Db Technical Data Measuring principle Media temperature Measuring range Ambient temperature Output signal 1 Floating change-over contact (SPDT) Switching differential Areas with gaz explosion hazards: II 2 G Ex d e IIC T6 Gb Areas with dust explosion hazards: II 2 D Ex tb IIIC T80°C Db Trafag Sensors & Controls Switzerland www.trafag.com [email protected]

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EXP 900/904/912 Ordering information/type code XXX XX XX XXX XX XX Custom build code Without display, with adjusting screw With display and adjusting knob With display and adjusting screw Sensor material Sensor housing material Brass nickel plated Brass nickel plated Brass nickel plated Brass nickel plated Brass nickel plated Thread G1/4" female G1/2" male G1/4" female G1/2" male G1/4" female Sensor material Sensor housing material Brass nickel plated Brass nickel plated Brass nickel plated Brass nickel plated Brass nickel plated Thread G1/2" male G1/4" female G1/2" male G1/4" female G1/2" male...

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Dimension XandYsee data sheet H72271 sensors ^JScontrols

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EXP 900/904/912 Switching differential typ. @ 25°C Measuring range of bellows sensor Microswitch 91 Switching differential (not adjustable) Electrical data switch Rating Resistive Load (Inductive Load) Type 91 Electrical connection

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