RPP Medium range pressure switches

Transcription

1 RPP Medium range pressure switches ll industrial environments ll fluids One or two thresholds ll stainless steel version for aggressive environments French lectricity Generating Board (F) electronuclear version Marine version onforms to (Low voltage irective N 73/23/ modified by N 93/68/) These pressure switches maintain a constant level of pressure around a preset value, "Regulatory Function", or actuate an alarm or safety circuit when the pressure being monitored reaches a critical level, "Safety Function". Technical ata (20 ) Black Zamac enclosure and blue cover protected Protection IP 65 to NF N standard aptive screws for cover attachment Wall-mounting by removable bracket xternal adjustment screw fitted with an antivibration system locking the set point and the deadband, protected by screwed and sealable caps Internal mechanism of bichromate-treated cadmium-plated steel lectrical connections via internal terminal-block with P N 11 cable gland for cable between 7 and 10.5 mm in diameter Internal earth connection alibrated scale for set point reading Pressure connections: G 1/2, female 1/4 NPT, G 1/4 (171, 172, 173 only) Important : ny pulsating circuit must be fitted with pulsation dampeners. Mechanical vibrations should be reduced by means of antivibration mounts fitted to the pressure switches. Normal operation is between 10 % and 90 % of the selected scale. The deadband values given in the tables (see inside pages) are defined under these conditions. The maximum overpressure values correspond to accidental overpressures of limited duration. Technical specifications : Storage temperature: Reproducibility ± 1% of full scale : microswitch ; ± 2% (other microswitches) SPT microswitches xplosion-proof version x d ll T6: certificate N L..I Intrinsically safe version x ia II T6: certificate N LI 88 B 6081 X. This version must be used only with an intrinsically safe electrical installation xplosion-proof and intrinsically safe versions valid until 30 June 2003 New TX/94/ certification (in progress) Tests certification : French lectricity Generating Board (F) certification of tests HM063/6864 on ZPN 204 SH Page 1

2 Operating range RPP - RPPN - RPPH - RPHN (ZP1) low pressure RPP : standard sensing with treated steel flanges and diaphragm according to (1) or (2). RPPN : standard sensing with lower flange in stainless steel (316 L) and diaphragm in Viton. djustable eadband Fixed eadband Fixed eadband t 10 % t 90 % t 10 % t 90 % t 10 % t 90 % t 10 % t 90 % mbar bar mbar mbar mbar mbar mbar mbar mbar mbar -50 to (1) 2 to to to to Fig 3-2 to (1) 1 to to5 4.5 to to Fig 3-5 to (1) 1.2 to 15 2 to 15 5 to 15 7 to Fig 3-8 to (1) 1.5 to 25 2 to 25 5 to to Fig to (2) 6 to 80 8 to to to Fig 3 0 to (2) 6 to 80 8 to to to Fig 3 0 to (2) 15 to to to to Fig 3 IMN- (1) Viton diaphragm (2) PM diaphragm RPPH : sensing withstanding overpressure with treated steel flanges and PM diaphragm. RPHN : sensing withstanding overpressure with lower flange in stainless steel (316 L) and viton diaphragm. djustable eadband Fixed eadband Fixed eadband t 10 % t 90 % t 10 % t 90 % t 10 % t 90 % t 10 % t 90 % mbar bar mbar mbar mbar mbar mbar mbar mbar mbar IMN- -50 to to to to to Fig 3-2 to to 10 1 to to to Fig 3-5 to to 20 2 to to 20 5 to Fig 3-8 to to to 25 5 to to Fig to to to to to Fig 3 0 to to to to to Fig 3 0 to to to to to Fig 3 0 to to to to to Fig 3 0 to * 20 to to to to Fig 3 0 to * 20 to to to to Fig 3 0 to * 25 to to to to Fig 3 T fluid : T ambient : } RPP/RPPN * G 1/4 female connection RPPH/RPHN These microswitches can be implemented with two simultaneous contacts : SII (2 x SI), GSS (2 x GS), SHH (2 x SH), GSHH (2 x GSH) Warning : in this case, deadbands are multiplied by 1.5 xplosion-proof model : deadbands are multiplied by 1.5 SM version : consult us. Page 2

3 Operating range RPP - RPPN - RPP - RPPX (ZP2) medium pressure RPP : standard sensing with brass base plate, tombac bellow or nickel plated piston. RPPN : stainless steel sensing, stainless steel bellow or nickel plated piston. djustable eadband Fixed eadband Fixed eadband t 10 % t 90 % t 10 % t 90 % t 10 % t 90 % t 10 % t 90 % bar bar mbar mbar mbar mbar mbar mbar mbar mbar IMN- -1 to to to to to Fig 4-1 to to to to to Fig 4 0 to to to to to Fig to to to to to Fig to (1) 200 to to to to Fig to to to to to Fig 4 bar bar bar bar mbar mbar bar bar 5 to to 10 2 to to 10 3 to Fig 4 5 to (3) 2.5 to 15 3 to to to Fig 4 20 to (3) 2.5 to to to to Fig 4-1 to to to to to Fig 4 bar bar bar bar bar bar bar bar 25 to (2) 20 to to to to Fig 4 30 to (2) 20 to to to to Fig 4 60 to (2) to to to to Fig 4 (1) 30 bar in stainless steel version (2) sensing with piston (3) stainless steel version only RPP : sensing withstanding overpressure with bichromate finish galvanized base plate and Perbunan diaphragm (code 201 only). RPPX : sensing withstanding overpressure with stainless steel base and diaphragm. (except code 201) djustable eadband Fixed eadband Fixed eadband t 10 % t 90 % t 10 % t 90 % t 10 % t 90 % t 10 % t 90 % bar bar bar bar bar bar mbar mbar bar bar IMN- -1 to to to to 2 1 to Fig to to to to to Fig to to to to to Fig. 4 5 to to 10 2 to to 10 7 to Fig. 4 5 to to 25 4 to 25 5 to to Fig to to 25 6 to 25 5 to to Fig to to to to to Fig. 4 T fluid : ; (RPP only) T ambient : (all versions) These microswitches can be implemented with two simultaneous contacts : SII (2 x SI), GSS (2 x GS), SHH (2 x SH), GSHH (2 x GSH) Warning : in this case, deadbands are multiplied by 1.5 xplosion-proof model : deadbands are multiplied by 1.5 SM version : consult us. Page 3

4 imensions (mm) Watertight case Fig. 1 xplosion-proof case ifferential adjustement Set point adjustement 3 holes ø 9 equidistants on ø 22 Sealing hole Window for setting scale able gland able 7 to 12 mm dia (not mounted) arth terminal weight of explosion-proof case: 3 kg Fig. 2 RPP / RPPH / RPPN / RPHN (ZP1) low pressure RPP / RPPN weight : 3 kg RPP / RPPN weight : 2.8 kg RPPH / RPHN weight : 10 kg RPPH / RPHN weight : 6.4 kg RPPH / RPHN weight : 7 kg Fig. 3 Page 4

5 imensions (mm) RPP / RPP / RPPN / RPPX (ZP2) medium pressure RPP / RPPN weight : 2.5 kg RPP / RPPN weight : 2.4 kg RPP / RPPN weight : 2 kg RPP weight : 2.4 kg RPPX weight : 2.4 kg 26/flat square G1/2 male Fig. 4 Operating principle flexing, bellows, diaphragm or piston, actuates one or two microswitches by means of levers. The set point and the deadband are set by springs mounted in opposition. ccessories daptator for welded connection in steel ZRM1 or stainless steel ZRMN 1. Ring siphon steel or (ISI 316) stainless steel. hemical seal (no bottom housing version) Isolating valve. Manifold. Pulsation dampener. Page 5

6 Options Uncoded options (have to be listed after the code number) Knurled knob for adjustment of the set point (ZB2) knurled knob for adjustment of the deadband (ZB3). Tropicalization (SI and SII microswitches only). Micro N Gold contact (SI and SII microswitches only). Micro M Blow out disc. Socket connector. MRIN version. ll stainless steel construction for aggressive environments (screws and sensing ). Pneumatic version. lectronuclear model, consult us. Specific connection. leanliness for oxygen service. Ordering etails - RPP Model Pressure switch Type ZP1 ZP ZPH ZPN ZPHN ZP2 ZP ZP ZPN ZPX Microswitch** 1 digit digit 5 digit urrent rating (resistive circuits) SI 1 standard changeover switch (1xSPT) 5/250Vac 0.5/110Vdc SII 2 simultaneous changeover switches (2xSPT) 2 x 5/250Vac 2x0.5/110Vdc SH 1 hermetically sealed changeover switch (1xSPT) 2.5/250Vac 1/110Vdc GSH 1 herm. sealed ultra sensitive changeover switch (1xSPT) 1/250Vac 2/30Vdc GSHH 2 herm. sealed ultra sensiti. changeover switches (2xSPT) 2 x 1/250Vac 2x2/30Vdc GS 1 ultra sensitive changeover switches (1xSPT) 2 /250Vac 1/30Vdc GSS 2 ultra sensitive changeover switches (2xSPT) 2 x 2/250Vac 2x1/30Vdc SM 2 movable changeover switches 2 x 2/250Vac 2x1/30Vdc SHH 2 hermetically changeover switches (2xSPT) 2 x 2.5/250Vac 2x1/110Vdc *SR 1 changeover switch with manual reset opening on rise 5/250Vac 5/30Vdc *SRF 1 changeover switch with manual resest opening on fall 5/250Vac 5/30Vdc RPxx xx x xxx R PP PPH PPN PHN PP PP PPN PPX B V F G W H J ZP1 ZP2 Range in mbar RPP RPPN RPPH RPHN X X X X X X X X X X X X X X X X X X Range in bar RPP RPP RPPX RPPN X X X X X X X X X X X X X X X X X X X X UK/ This data sheet may only be reproduced in full. Protection Standard xplosion proof IS - Intrinsically safe Hydraulic connection G 1/4 female (171, 172, 173 only) G 1/2 male 1/2 NPT male 6 digit 7 digit Y Pressure range codes in table digit xxx * Not possible in xplosion Proof version. ** SPT microswitches only lectronuclear versions : ZPN-M, ZPHN-M, Order under the following commercial references: ZPN-M, ZPHN-M : code = (SHM or HM) Page 6