Diaphragm Type Pressure Switch TETROSWITCH MS1

Product catalog summary

Overview: The TETROSWITCH MS1 is a diaphragm type pressure switch suitable for various applications including chemical, petrochemical, machinery, food, pharmaceutical, and both onshore and offshore environments. It offers setting ranges from 0 to 25 bar.

Technical Characteristics:

Material: Case and cover made from Stainless Steel series 300 with a bayonet type ring.
Protection: Rated IP65 (EN60529/IEC529), NEMA 4.
Electrical Wiring: Internal terminal board with one internal and one external ground terminal.
Sensing Element: Diaphragm with a diameter of 65mm, made from AISI 316 with Viton O-Ring for ranges up to 0±2.5 bar, and Zinc Steel coated with AISI316 for ranges from 0/4 bar to 0/25 bar.
Process Connection: Made from AISI 316 with dimensions of ½”NPTM or GAS; ½” NPTF.
Mounting Options: Direct on tap, wall, or 2” pipe mounting with optional bracket.
Micro Switch: Available with 1 SPDT or 2 independent SPDT with fixed differential or adjustable dead band.
Temperature Limits: Ambient: -30/+90°C, Fluid: -30/+150°C.
Compliance: Constructed according to ATEX directive 94/9/EC for intrinsically safe circuits and PED directive 97/23/EC.

Options and Accessories: Various options include different diaphragm materials (Hastelloy-C, Tantalum, Titan, MONEL 400, AISI316+Teflon), Teflon coated connections, cable glands, mounting brackets, and protections for vacuum and overpressure.

Ordering Information: Specify model, micro switch, setting range, process connection, cable entry, options, and accessories. Example: TETROSWITCH MS1, C, 0/4bar, G05, C01.

Micro Switches (Table A): Different types of contacts are available with varying electric ratings, including silver and gold plated contacts, both in air and sealed in inert gas.

Ranges (Table B): Setting ranges from 0/0.6 to 0/25 bar with corresponding continuous overpressure, proof pressure, and dead band values for 1 and 2 micro switches.

Process Connection and Cable Entry: Various types and codes are available for process connections and cable entries.

Weight and Dimensions: The weight and dimensions vary based on the range settings, with specific measurements provided for 600mbar and over 1 bar settings.

Catalog excerpts

Diaphragm Type Pressure Switch TETROSWITCH MS1-1

Data sheet Date Page DIAPHRAGM TYPE PRESSURE SWITCHES TETROSWITCH MS1 The TETROSWITCH pressure switches series MS1 are suitable for use with chemical, petrochemical, machinery, food, pharmaceutical or onshore and offshore applications. Setting Ranges from 0-25 bar. TECHNICAL CHARACTERISTICS Case and cover : St. St. series 300, bayonet type ring Protection degree : IP65 (EN60529/IEC529), NEMA 4 Electrical wiring : internal terminal board Ground terminal : 1 internal and 1 external Internal parts material : Stainless Steel Blow out: neoprene, upper Sensing element: Diaphragm diameter 65mm Element material : AISI 316+ Viton O-Ring up to range 0±2,5bar Zinc Steel coated with AISI316 for ranges from 0/4bar to 0/25bar Process connection material : AISI 316 Connection dimension: ½”NPTM or GAS ; ½” NPTF Cable entry : ½”NPTF , ½”GASF , M20x1,5 Mounting: direct on tap, wall or 2”pipe mounting (optional bracket) Ranges: see table B at page 2 Micro switch :1 SPDT or 2 independent SPDT with fixed differential or with adjustable dead band according to table A at page 2 Set point adjustment : internal micrometric screw Repeatability : better than 1% f.s. Ambient temperature limit: -30/+90°C Fluid temperature limit: -30/+150°C Thermal drift : ≤ 0,05%/°C Construction acc.to ATEX directive 94/9/EC for intrinsically Safe Circuits (on request) Construction according to PED directive 97/23/EC OPTIONS AND ACCESSORIES DESCRIPTION Case and cover in AISI316 Hastelloy-C diaphragm Tantalum diaphragm Titan diaphragm MONEL 400 diaphragm AISI316+Teflon diaphragm Teflon coated connection Cable gland in PVC MIL specification cable gland Wall mounting bracket 2”pipe mounting bracket Degreasing for O2 service Version for Intr. Safe circuits High temperature version Vacuum protection Overpressure protection Accessories (syphon, valves, chemical seals) HOW TO ORDER Please specify: model, micro switch, setting range, process connection, cable entry, options and accessories Example: TETROSWITCH MS1, C, 0/4bar, G05, C01 _______________________________________________________________________________________________ PCI (Process System Solutions) Ltd, Unit 7 Slaidburn Crescent, Southport, Merseyside, PR9 9YF, UK, Tel: +44 (0) 1704 509090, Fax: +44 (0) 1704 509091, email: [email protected], Website: www.pci-instruments.com (Specifications are subject to change without notice)

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Diaphragm Type Pressure Switch TETROSWITCH MS1-2

Data sheet Date Page TABLE A : MICRO SWITCHES TYPE OF CONTACT In air,Silver contacts splash proof silver contact In air, golden plated contacts Silver contacts, sealed in inert gas Gold plated contacts, sealed in inert gas In air, Silver contacts with adjustable dead band Setting range Dead band 1 micro (1) Dead band 2 micro (1) Continuous overpressure Pressure (bar) Proof pressure for gold plated contacts, values are 3 times Dead band for adjustable dead band micro switch adjustment from 10 to 50% of range PROCESS CONNECTION Type CABLE ENTRY WEIGHT AND DIMENSIONS F = process connection F1 =...

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