MEX2 - MEX3 - MEM3

Product catalog summary

Main Features
Industrial pressure gauges MEX2, MEX3, and MEM3 are designed for use with corrosive gases and liquids. They are compliant with Class 1.6 according to EN 837-1 and have Lloyd's Register approval. The gauges are available with options for liquid filling to handle pulsations or vibrations and can be made with case material 1.4404 (316L) for aggressive environments. Applications include food & beverage, laboratory & medical, oil & gas, water & wastewater, energy, transportation, and machinery sectors.

Technical Specifications
The nominal sizes are 50 mm for MEX2 and 63 mm for MEX3/MEM3. The measurement range for MEX2/MEX3 is from -1 to 1000 bar, and for MEM3, it is from -1 to 400 bar. Pressure limitations are 75% of full scale for steady pressure, 65% for fluctuating pressure, and 100% for short time. The accuracy is Class 1.6, with a protection rating of IP 65. The process connection and Bourdon tube for MEX are made of stainless steel 1.4404, while MEM uses Monel 400. The case is stainless steel 1.4301, with an option for 1.4404.

Options and Accessories
Available options include ATEX certification, adjustable friction pointer, laminated safety glass, polycarbonate window, and restrictor screw. Additional certifications like material certificate 3.1 EN10204 and calibration certificate EN837-1 are available. The bezel ring and movement are made of stainless steel, with an instrument glass window and elastomer gasket. The dial is white aluminum with a black plastic pointer.

Temperature and Safety
The ambient temperature range is -20 to +70°C, and the medium temperature range is -40 to +200°C for non-filled versions. Liquid-filled versions have specific ordering details. The case temperature should not exceed +70°C. The thermal drift is ±0.4% F.S. per 10 K, with safety S1 according to EN837-1.

Dimensions and Mounting
Dimensions for NS 50 and NS 63 are provided, with specific measurements for various mounting types. The weight of the gauges varies between 0.100 kg and 0.180 kg depending on the size and whether they are filled or unfilled.

Ordering Details
Ordering involves selecting the model, nominal size, type of mounting, process connection, liquid filling, and unit of measurement/pressure ranges. Options can be added for specific requirements. An example order is provided for clarity.

Catalog excerpts

SBourdon Baumer Group MEX2 - MEX3 - MEM3 Industrial Pressure Gauges Main Features ■ For corrosive gasses and liquids ■ Class 1.6 according to EN 837-1 ■ Wetted parts Stainless steel (MEX) or Monel (MEM) ■ Lloyd's Register approval ■ Food & Beverage ■ Laboratory & Medical ■ Oil & Gas / Chemical ■ Water & Waste water ■ Option : liquid-filled for applications with pulsations or vibrations ■ Option : case material 1.4404 (316L) for aggressive atmosphere ■ Energy ■ Transportation & Logistics ■ Machinery Technical Data Nominal size MEX2 : 50 mm Pressure limitation Steady: 75% of full scale value Fluctuating : 65% of full scale value Short time : 100% of full scale value Accuracy Class 1.6 (according EN837-1) Protection rating IP 65 (EN 60529) Process Connection MEX : Stainless steel 1.4404 (AISI 316L) Bourdon tube MEX : Stainless steel 1.4404 (AISI 316L) Case Stainless steel 1.4301 (AISI 304) Option : stainless steel 1.4404 (AISI 316L) Bezel ring Stainless steel 1.4301 (AISI 304) Option : stainless steel 1.4404 (AISI 316L) Movement Stainless steel Window Instrument glass Window gasket Elastomer Dial Aluminium, white Pointer Plastic, black For liquid filled version see ordering details. The case temperature must not exceed +70°C Storage: -40...+70°C Thermal drift ± 0.4% F.S. /10 K (reference : 20°C) (with window polycarbonate or laminated safety ATEX M2GDc-IM2c (Including window laminated safety glass) Adjustable friction pointer Window laminated safety glass Window polycarbonate Restrictor screw 0 0.3 Lloyd’s Register approval Accuracy class 1 (1.6 bar < P < 1000 bar) Code 0679 Code 0751 Code 0753 Code 0769 Code 0827 Code 0841 To be ordered separately Material certificate 3.1 EN10204 CodeQ1229 Calibration certificate EN837-1 Code Q1070 (5 points raising and 5 points falling) 2012-10-30 Design and specifications subject to change without notice www.bourdon-instruments.com Data sheet A21.22 Pag

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SBourdon Baumer Group MEX2 - MEX3 - MEM3 Industrial Pressure Gauges Dimensions - Types of mounting G (23)* Panel cut-outs for types B and G NS 50 = 0 53.5 mm / NS 63 = 0 65.5 mm 'Type of mounting according to EN837-1 in brackets 2012-10-30 Design and specifications subject to change without notice www.bourdon-instruments.com Data sheet A21.22 Page 2/3

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SBourdon Baumer Group Model All stainless steel pressure gauge Pressure gauge with monel Bourdon tube (1) Nominal size 50 mm (2) 63 mm Type of mounting Stainless steel case and bezel ring 1.4301 (AISI 304) Bottom connection, 3 back lugs fixing A Back connection, front flange, 3 mounting holes B Back connection with clamp G Stainless steel case and bezel ring 1.4404 (AISI 316L) Bottom connection, 3 back lugs fixing 1 Back connection, front flange, 3 mounting holes 2 Back connection with clamp 7 Unit of measurement / Pressure ranges (3) bar ► Bxx Options to be added behind the / (see example below)...

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MEX2 - MEX3 - MEM3

MEX2 - MEX3 - MEM3

Catalog excerpts

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