Technical Datasheet Performance Diaphragm Operated Pressure Switches 200 Series • Precision stainless steel mechanism for arduous atmospheres and high humidity. • Set point adjustable over whole range against calibrated scale with tamperproof adjuster. • High Overload capacity (204). • Open diaphragm (208) • Hygiene connection (209). • Weatherproof and Flameproof models EEx d IIC - ATEX. • Safety vented or blow out device as standard. • Hermetically sealed microswitch option. Product applications Perf ormance characteristics Enclosure • IP66 Protection Wetted parts options • 316 Stainless Steel diaphragm with Viton O ring seals. • 316 Stainless Steel diaphragm with Nitrile O ring seals. • Nickel Alloy (Monel) suitable for NACE MR-01-75. The 204 is suitable for a wide range of applications in many Industry sectors: • Oil & Gas • Chemical • Petrochemical • Refining • Power • Food Industry The choice of models available ensures Standard Electrical ratings • Refer to table 6 Process connection that the 204/8/9 is suitable for use in: • Corrosive atmospheres • Resistant to chemical attack • Rc ¼ (BSP), ¼ NPT Internal, ½ NPT Internal & External (204). • Flanges - EN1092-1 (BS4504) PN 16. DN50 & ANSI B16.5 2in 150RF (208). Unit weight • Accuracy • Set point repeatability ± 1% of span at 20 °C / 68 °F ambient. • Scale accuracy ± 3% of full scale. Delta Controls’ range of reliable measurement instruments can be customised to meet individual requirements. For technical advice or to d

Enclosure FINISH All enclosures except Type A are finished in light grey epoxy resin paint. Special finishes to order. INTRINSIC SAFETY Because of the low voltages and currency of I.S. circuits, we recommend using gold and/or sealed contacts. Temperatures in Table 1 refer to limitations for certified enclosures. See TECHNICAL DATA. WEATHERPROOF ENCLOSURES General Purpose The basic enclosure is pressure die-cast in zinc alloy, offering weather protection not less than NEMA 4 + 13/IP66. For Aggressive Atmospheres Investment cast enclosure in austenitic stainless steel with weather protection not...

Electrical Entry Adaptors are available for other popular thread sizes. Enclosures ‘W’ and ‘N’ Standard option code 1(22mm dia) is provided with a nylon 22/20 reducer and fibre washer suitable for a standard M20 cable gland and back nut. Option code 0 elbow adapter is factory fitted. Adapter kits may also be provided retrospectively to fit at site if required. Ask for details. See diagrams for dimensions. Enclosure W & N: Clearance for 20mm (3/4 in) outside dia conduit. Enclosures H & K: M20 x 1.5 ISO thread, dual entry. ‘W’ and ‘N’ SAFETY NOTE If a metal cable gland is site fitted it must either...

Switching Options A much wider variety of switching options can be engineered to customer’s requirements including heavy DC, manual latching, pneumatic output etc. Please consult our engineers for further information. All Models IEC 947-5-1/EN 60947-5-1 Rating UL/CSA Rating (RESISTIVE) §SEE NOTE 5 Amps @ 110/250V AC Light Duty for AC only Designation & Utilization Category Rated operational current Ie (A) at rated operational VA Rating Make Break Ui 5 Amps @ 110/250V AC & AC14 D300 0.6/0.3A @ 120/240V AC 2 Amps @ 30V DC 250V 0.8kV DC13 R300 0.22/0.1A @ 125/250V DC General purpose precision 1...

Options & Treatments Combinations available, apply for details. Code Tropicalisation High humidity environment Marine and Offshore Saline atmosphere or salt spray Ammonia Process (wetted) parts and construction suitable for atmospheric ammonia. Oxygen Service 2: Process (wetted) parts are cleaned for oxygen. Oxygen Service 3: Process and non-process parts are cleaned for use with oxygen. Stainless Steel Pipe Mounting Bracket Permits local 2” pipe work to be utilised for mounting the instrument. Tagging - Variety of tagging methods are available Applies when – no option is required and selection...

Technical Specifications ELECTRICAL CONNECTIONS ACCURACY Set point repeatability + 1% of full scale Terminal Block at 20°C ambient. Cable entry is to a non-pinching block Scale accuracy +3% of full scale. made of a non-hygroscopic thermosetting plastic, suitable for AMBIENT TEMPERATURE RANGE 2 cables up to 2.5mm /14AWG. All models are suitable for operating within a range of ambient temperature Earthing/Grounding from –25 to +60°C (-13 to +140°F). Special build available for temperatures An earthing stud is provided inside all weatherproof enclosures, adjacent to down to -60°C (-76°F) the entry....

CABLE GLAND ASSEMBLY W/N GLAND FIBRE SCREW WASHER In the interest of development and improvement Delta Controls Ltd, reserves the right to amend, without notice, details contained in this publication. No legal liability will be accepted by Delta Controls Ltd for any errors, omissions or amendments. Delta Controls Limited Riverside Business Park, Dogflud Way, Farnham, Surrey GU9 7SS, UK.