Pressure switches - Vacuum

Transcription

1 switches 5

2 switches vacuum (electrical output) Cform to the Low Voltae Directive Can be used enclosure accordin to IEC 664 polluti roup III Part numbers and vacuum switches Mountin Actuators Manual override Symbol with Low pressure Pneumatic Pushin cnecti for semiriid mm cnecti tubin (NFE 4900) Tapped BSP via cnector Protecti IEC 529 Permissible fluid: air, inert ases and liquids Adjustment of switchin pressure (* adjusted to 0.) at at 2 s at 4 s at 6 s max. 200 mb max. 250 mb to break Mechanical life (operatis) Ctact ratin (V resistive) Wire crosssecti mm 2 Operatin temperature C Weiht Standard electrical ctact UL and cul approval 5A V A V * 5A V A V Operati Electrical life operated operated (Crouzet microswitch "V4" ref 8 4W2) Electrical output comm normally closed ctact normally open ctact Adjustment of switchin pressure to 8 s Number of cycles Resistive circuit Inductive circuit { L c = 5 ms R a cos q = Mechanical life Standard microswitch 5 A / 220 V Manual override Pneumatic indicator Markin ta Pneumatic sinal Current in Amps For ctinuous vacuum applicatis, please csult us. Other informati On request : Microswitch V4 ref. 8 0 i W2 hih current Microswitch V4 ref. 8 9 i W2 low current 6

3 with screws M screws M with 5A V A V Electrical cnectis A V Dimensis /8 BSP 5A V /8 BSP 0. 5A V switch with cnector Via subbase.4 ± ± 0.2 5A V Via subbase.4 ± ± 0.2 5A V Comm 4 NO ctact 2 NC ctact For M4 screws Pilot sinal lenth 24 mm Pilot sinal

4 Adjustable pressure switches (manostats) (pneumatic output) 00 % pneumatic Also available in ATEX versi for use in potentially explosive atmospheres in accordance with 94/9/EC Directive Part numbers (and adjustment ranes) Adjustment rane Versi Accuracy Symbol mb b 2 8 b mb b 2 8 b % Neative output 0 % Orifice diameter mm Flow at 4 s Nl/min mb b 2 8 b Cnecti subbase paes 54/55 Operatin temperature C Mechanical life operatis Weiht Cnectis Example of pressure threshold adjustment (minireulator manostat) mb 00 mb 20 mb x mb 00 mb 20 mb x 60 Principle of operati The manostats provide an or off output sinal when the input sinal reaches a predetermined pressure threshold. Neative output Output sinal Pilot Output sinal Pilot Switchin Switchin off Switchin Switchin off Dimensis Other informati switches with electrical output request. ATEX versi products are available in the followin catoloues: Pneumatic products for explosive atmospheres or our website 8

5 Adjustable vacuum switches (vacuostat) 00 % pneumatic For vacuum 0, 0,9 Bar Part numbers Symbol Neative output Electrical output Adjustment rane b Flow at 6 s Nl/min mb Cnecti subbase paes 54/55 Operatin temperature C Mechanical life operatis Weiht Cnectis Example of use: handlin (vacuum enerator, vacuum pad, vacuostats) x x x Principle of operati Vacuostats provide an or off output sinal when the input sinal reaches a predetermined pressure threshold. Neative output Output sinal Output sinal Switchin Switchin off Switchin Switchin off Dimensis

6 handlin compents Sur le principe du Venturi Facilement raccordable Also available in ATEX versi for use in potentially explosive atmospheres in accordance with 94/9/EC Directive Part numbers enerators Subbase mountin Pluin Pluin Pushin cnectors for semiriid tubin (NFE 4900) Operatin pressure pad material Weiht Male/Female/Female (MFF) Female/Female/ Female (FFF) 2 8 Ø 4 mm 2 8 Ø 6 mm Detecti of the pressure decrease can be achieved by the use of manostats (see paes 8/9) (mb) Sucti flow (mb) Flow (mb) Sucti flow Flow (mb) (mb) Sucti flow (mb) Flow Supply pressure () Supply pressure () Supply pressure () Dimensis Subbase mountin 8 5 and pushin cnectors Ø 4 mm Pluin ferrule for pushin cnector Ø 4 mm ,7 0,7 Ø 4,5 5,5 29 ±0, pushin cnectors 40 Ø 6 mm 4,5 ±0, ATEX versi products are available in the followin catoloues: Pneumatic products for explosive atmospheres or our website 40