Flameproof Ultra Low range DP Switches series FP
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This document provides information on FP Ultra Low Range Pressure Difference Switches. The switches have a user adjustable knob to set the switching point in pascals without needing a pressure gauge. They have an IP66 rated die cast aluminum housing and can withstand up to 10 million switching operations. The switches have operating ranges from 20 to 4000 pascals and can be used with air or non-aggressive gases at temperatures up to 80°C. Installation instructions are also provided.
Flameproof Ultra Low range DP Switches series FP
- 1. FP ULTRA LOW RANGE PRESSURE DIFFERENCE SWITCHES Ultra Low Range Pressure Difference Switches with User Adjustable Knob Salient Features Easy to See, Easy to Use! Set Point easily user adjustable with visible scale in Pascal. (no need of pressure gauge) Enclosure Robust Gravity Die Cast Aluminum Long Lasting! 10 6 switching operations Trusted all over! Tested and Proven Technical Specifications Media: Air, non-flammable gases and non-aggressive gases Housing Material: IP 66 Gravity Die Cast Aluminium Protection Category: IP66 with cover. Ranges: 20 Pa to 4000 Pa Maximum Working Pressure: 0.1 bar Electrical Rating: Maximum 1.0A (.4 A) / 250VAC Electrical Connection: Standard Terminal Strip provided Cable Entry: ½” NPT High Pressure and Low Pressure Port: 1/8” BSP(F) Media Temperature: 80°C max. Ambient Temperature: -5°C to 60°C Range Selection Table Range Code (Orion) Adjustment Range for Upper Switching Pressure Pa (mm wg) Switching Differential Set to Pa (mm wg) FP80 20-200 (2.039-20.395) 10 (1.020) FP81 40 - 100 (4.079 - 10.197) 20 (2.039) FP82 40 - 200 (4.0479 - 20.395) 20 (2.039) FP83 50 - 500 (5.099 - 50.987) 20 (2.039) FP85 200 - 1000 (20.395 – 101.974) 100 (10.197) FP86 500 – 2500 (50.987 – 254.935) 150 (15.296) FP87 1000 – 4000 (101.974 – 407.896) 250 (25.494) How to order FP series Low Range Pressure Difference Switches Please specify the Range Code e.g.. FP82 or FP85 as per range selection table.
- 2. NK Instruments Pvt. Ltd.B-501/504, 5th floor, Raunak Arcade, Near THC Hospital, Gokhale Road, Naupada, Thane(W) 400602. Maharashtra INDIA Telefax Nos.: 91-22-25301330 / 31 / 32 E-Mail: sales@nkinstruments.com Web: http://www.nkinstruments.com Skype: nitinkelkarskype Gtalk: nkinstruments2006 Authorised Dealer ULTRA LOW RANGE PRESSURE DIFFERENCE SWITCHES FP INSTALLATION AND OPERATING INSTRUCTIONS Principle of Operation When the effective force generated by the pressure difference in the lower and upper chamber of the pressure capsule exceeds/falls beyond the balancing spring forces, an electrical element is actuated. Mounting The detailed mounting dimensions are shown in Fig. 1. 1) Pressure Switches can be mounted on a plate/inside a panel using Ø7 mounting holes provided. 2) For any other process connection, please use an adaptor. Fig. 1 INSTALLATION DRAWING CABLE ENTRY 1/2" NPT(F) 110.0 145.0 (4.33) (5.71) 26.0 126.0 (1.02) (4.96) Ø7, MOUNTING HOLES, 2 NOS P1 HIGH PRESSURE PORT 1/8" BSPF P2 LOW PRESSURE PORT 1/8" BSPF 50.8 Sq. (2.0) APPROX. DIMENSIONS IN inches P1 = High Pressure Port P2 = Low Pressure Port Note : 1. Use two screws only, for mounting 2. Remove transport protection from P1 and P2 CAUTION : Install pressure switch vertically. Installing it at an angle more than 30° to vertical may result in malfunction. . . . .