Pressure switch FF 4 Approval acc. to ATEX EN For mining and chemistry

Transcription

1 Approval acc. to ATEX EN 679 Description n... 3 bar with perbunan diaphragm. n bar with plastic plunger and throttle. n Throttle must be removed when using viscous media. 151 mm 7 13 mm a 1 mm,5 mm 5 mm mm,5 mm 77,5 mm Control pressure switch FF - AB DAH FF -, FF -, FF -, FF -, FF mm 151 mm 7 57 mm 1 mm,5 mm mm 5 mm,5 mm 77,5 mm Control pressure switch FF - AC DAH FF -1, FF -3, FF -6, FF -1, FF -5 Types for mining applications Protection class: IM Ex ia IMb, Pressure connector: H (G 3/" Female thread) FF - AB DAH,11...,... 1,9,7,11,5 / 1, FF - AB DAH,...,7... 3,75,15,5 1 / FF - AB DAH,5...,... 7,5,3,5 3 / FF - AB DAH 1...,... 15, / FF -6 AB PAH / 1313 FF -1 AB PAH / FF -5 AB PAH /

2 Approval acc. to ATEX EN 679 Types for chemical applications Protection class: II G Ex ia IIC T6 Gb, Pressure connector: H (G 3/ Female thread) FF - AC DAH,11...,... 1,9,7,11,5 / 1, FF - AC DAH,...,7... 3,75,15,5 1 / FF - AC DAH,5...,... 7,5,3,5 3 / FF - AC DAH 1...,... 15, / FF -3 AC DAH... 3, , / 13 FF -6 AC PAH / 1317 FF -1 AC PAH / 1319 FF -5 AC PAH / 1315 Types for chemical applications Protection class: II G Ex ia IIC T6 Gb, Pressure connector with stainless steel corrugated bellows, Pressure connector: G (G 1/ Female thread) FF-1 AC AAG , ,,5, 1 6 / FF-3 AC AAG , 1, 3,6 3 / 1313 Technical data Resistance to vibration 1 up to 1 Hz g Protection acc. to DIN 5/IEC 59 with rubber grommet IP 5 Protection acc. to DIN 5/IEC 59 with cable glands PG 13.5/M IP 65 Ambient temperature range C Perm. medium temperature (...DAH, PAH) +7 C (...AAG) + C Repeatability < % FS Accessories Order reference Description Weight Part No. (g) Throttles Throttle FF Throttle for series FF- up to Throttle FF Throttle for series FF-1/3/6/1/5 (stainless steel) Glands H 1-11 Steel gauge fitting, G 3/ - G 1/ 1 171

3 Approval acc. to ATEX EN 679 Dimensions M Throttle for FF - up to 3 weight: ~ 3 g Order No.: 111 mm 6 mm Throttle screw for FF -1/3/6/1/5 weight: ~ 3 g(stainless steel) Order No.: 1113 Switch amplifier TS-5 Ex see page 196 Zener barrier MTL 777+ see page 7 Circuit diagram Change-over contact 17

4 Approval acc. to ATEX EN 679 Pressure diagrams Charts show the smallest adjustable differential. Example per figure FF -: If upper setting is at 3.5 bar, lower setting can be adjusted between.7 and 3. bar (see arrows in the drawing). FF - FF - FF - FF -1 FF - FF -3 1,6 1,,,,, 1, 1, ,5 3,5 1,5 1, FF -3 FF Lower switching point bar Lower switching point bar 1

5 Approval acc. to ATEX EN 679 Pressure diagrams FF -1 FF Media compatibility guide Medium name Chemical Formula Stainless steel Perbunan Viton Plastic Acetone CH 3 COCH 3 X Acetylene HC = CH X X X X Air - X X X X Benzene Sulphur-free X X Butane C H 1 X X X X Butyl acetate CH 3 COOC H 9 X Butyl alcohol CH 3 -CH -CH -CH -OH X Carbon dioxide CO X X X X Carbonic acid H CO 3 X X X X Chlorine Cl X Crude oil - X X X X Diesel oil See fuels X X X X Ethyl acetate CH 3 OOOC H 5 X Fuels Diesel oil, X X X X Leaded petrol X X X X Benzene X X Glycerine CH OH-CHOH-CH OH X X X X Glycol CH OH-CH OH X X X X Heating fuel oil See also oils X X X X Hydrogen H X X X Inert gases - X Methanol CH 3 OH X Methyl chloride CH 3 Cl X Natural gas - X X X X Nitrogen N X X X X Oils Mineral X X X X Oils Vagetable X X X Oxygen O X X Ozone - X X Perchlorethylene CCI =CCL X X Petrol All types X X Phenolic acid C 6 H 5 (OH) X Sulphar dioxide SO X d Toluene (Metyl benzene) C 6 H 5 CH 3 X X Trichlorethene CHCI=CCI X X Water Steam / vapor X X X Water Destilled, de-aerated X X X X Water Sea water X X Xylene C 6 H (CH 3 ) X X X = recommended, d = dry 19