Electromechanical pressure switches
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1 References : pages / and / page /5 Presentation Functions Pressure switches type XMX and XMA are switches for control circuits, with an adjustable differential. They are used to control the pressure of water and air, up to 5. Equipment fitted to various models Location of setting screw Pressure switches type XMX have an internal setting screw, only accessible after removing the cover. Pressure switches type XMA have an external setting screw, accessible without removing the cover. Case Pressure switches type XMX have a black opaque case. Pressure switches type XMA can have a transparent case or a black opaque case. Setting When setting XMX or XMA pressure switches, adjust the switching point on rising pressure (PH) first and then the switching point on falling pressure (PB). Switching point on rising pressure The switching point on rising pressure (PH) is set by adjusting screw-nut. Switching point on falling pressure The switching point on falling pressure (PB) is set by adjusting screw-nut. / Te
2 References : pages / and / page /5 Characteristics Environment Conforming to standards è, IEC/EN Product certifications Protective treatment UL, CSA (pending) TC Ambient air temperature C Operation : Storage : Fluids controlled Materials Air, fresh water, sea water ( + 7 C) Case : polycarbonate impregnated with Lexan 5R fibre glass (black opaque cover) or polycarbonate impregnated with Lexan fibre glass (transparent cover). Component materials in contact with fluid : chromated zinc alloy (fluid enrty), nitrile covered canvas (diaphragm) Operating position All positions Electric shock protection Class I conforming to IEC 5 Degree of protection IP 5 conforming to IEC/EN 59 Operating rate Operating cycl/min. Repeat accuracy <.5 % Fluid connections /" or x /" BSP (female) conforming to NF E -5, ISO 8 Electrical connections Contact block characteristics Screw terminals. tapped entries for Pg.5 cable gland Rated operational characteristics c AC-5, B (Ue = V, Ie =.5 A ; Ue = V, Ie = A) a DC-, R (Ue = 5 V, Ie =. A) Rated insulation voltage V Ui = 5, conforming to IEC/EN 97- Rated impulse withstand voltage kv U imp = conforming to IEC/EN 97- Contact operation C/O single-pole contact, snap action Terminal referencing Conforming to CENELEC EN 5 Short-circuit protection A cartridge fuse type gg (gi) Cabling Screw clamp terminals. Clamping capacity, min. : x mm, max. : x.5 mm Electrical durability a.c. supply 5/ Hz, Ith = A Inductive circuit, utilisation category AC-5, A/ V : million operating cycles Te /
3 Accessories : page / page /5 For control circuits, type XMX Sizes to 5 (87 to.5 psi). Adjustable differential, for regulation between thresholds. Switches with C/O single-pole contact References, characteristics Pressure switches type XMX (internal setting screw) Adjustable range of switching point (PH) () (.5 87 psi) ( psi) ( psi) (.5 87 psi) ( psi) ( psi) Fluid connection /" BSP (female) x /" BSP (female) References Switches with black opaque cover Fluids controlled : air, fresh water, sea water, from C to + 7 C () XMX-AL5 XMX-AL5 XMX-A5L5 XMX-AL5 XMX-AL5 XMX-A5L5 Weight (kg) Complementary characteristics not shown under general characteristics (page /) Possible Min. at low setting.8 (. psi) (.5 psi). (9. psi).8 (. psi) (.5 psi). (9. psi) differential (subtract from Min. at high setting. (7. psi).7 (. psi).5 (5. psi). (7. psi).7 (. psi).5 (5. psi) PH to give PB) Max. at high setting. (.9 psi) 8. (.8 psi) (9 psi). (.9 psi) 8. (.8 psi) (9 psi) Maximum Per cycle 7.5 (8.7 psi) 5 (7.5 psi).5 (5. psi) 7.5 (8.7 psi) 5 ( 7.5 psi).5 (5. psi) permissible pressure Occasional surge.5 (95.7 psi) 7 (9.5 psi) 5.5 (85. psi).5 (95.7 psi) 7 (9.5 psi) 5.5 (85. psi) Destruction pressure (5 psi) (5 psi) (5 psi) (5 psi) (5 psi) (5 psi) Mechanical durability Cable entry x operating cycles entries tapped for Pg.5 cable gland Pressure switch type Operating curves XMX-Aiiiii 5 Diaphragm XMX-Aiiiii 8 XMX-A5iiiii 5 5 Pressure PH PB,,8,8 Maximum differential Minimum differential,,, 8, Maximum differential Minimum differential () See Component materials of switch in contact with the fluid, page /.,5, 5 5,5 5 Maximum differential Minimum differential Time Adjustable value Connections Other versions / Te Pressure switches with alternative tapped cable entries : ISO, NPT, etc. Please call our Customer information centre on
4 Accessories : page / page /5 For control circuits, type XMA Sizes to 5 (87 to.5 psi). Adjustable differential, for regulation between thresholds. Switches with C/O single-pole contact References, characteristics Pressure switches type XMA (external setting screw) Adjustable range of switching point (PH) () (.5 87 psi) ( psi) ( psi) (.5 87 psi) ( psi) ( psi) Fluid connection /" BSP (female) x /" BSP (female) References Switches with black opaque cover Fluids controlled : air, fresh water, sea water, from C to + 7 C XMA-HL5 XMA-HL5 XMA-H5L5 XMA-HL5 XMA-HL5 XMA-H5L5 Switches with transparent cover Fluids controlled : air, fresh water, sea water, from C to + 7 C XMA-VL5 XMA-VL5 XMA-V5L5 XMA-VL5 XMA-VL5 XMA-V5L5 Weight (kg) Complementary characteristics not shown under general characteristics (page /) Possible Min. at low setting.8 (. psi) (.5 psi). (9. psi).8 (. psi) (.5 psi). (9. psi) differential (subtract from Min. at high setting. (7. psi).7 (. psi).5 (5. psi). (7. psi).7 (. psi).5 (5. psi) PH to give PB) Max. at high setting. (.9 psi) 8. (.8 psi) (9 psi). (.9 psi) 8. (.8 psi) (9 psi) Maximum Per cycle 7.5 (8.7 psi) 5 (7.5 psi).5 (5. psi) 7.5 (8.7 psi) 5 ( 7.5 psi).5 (5. psi) permissible pressure Occasional surge.5 (95.7 psi) 7 (9.5 psi) 5.5 (85. psi).5 (95.7 psi) 7 (9.5 psi) 5.5 (85. psi) Destruction pressure (5 psi) (5 psi) (5 psi) (5 psi) (5 psi) (5 psi) Mechanical durability x operating cycles Cable entry entries tapped for Pg.5 cable gland Pressure switch type Diaphragm Operating curves XMA-iiiiii iiiii XMA-iiiiii iiiii XMA-i5iiiii iiiii Pressure PH PB 5,,8,8 Maximum differential Minimum differential,, 8, Maximum differential Minimum differential () See Component materials of switch in contact with the fluid, page /.,,5, 5 5,5 5 Maximum differential Minimum differential Connections Time Adjustable value Other versions Pressure switches with alternative tapped cable entries : ISO, NPT, etc. Please call our Customer information centre on Te /
5 Accessories and replacement parts page /5 References Description Reference Weight kg Fixing bracket XMA-ZL.5 XMA-ZL XML-ZL Knurled adjustment knob, Ø mm XML-ZL. fits over adjustment screws to facilitate setting Pg.5 plastic With anti pull-out ring DE9-PM.5 cable gland (for cable Ø 9 mm) DE9-PM Without anti pull-out ring DE9-PM.5 (for cable Ø 9 mm) With anti pull-out ring DE9-PM.5 (for cable Ø 9.5 mm) DE9-PM Without anti pull-out ring DE9-PM.5 (for cable Ø 9.5 mm) Description For pressure switch Reference Weight kg Diaphragms Size XMP-Z.5 XMP-Zi Size XMP-Z.5 Size 5 XMP-Z.5 / Te
6 Characteristics : page / References : pages / and / Dimensions XMX-AL5, XMX-AL5 XMA-iL5, XMA-iL5 XMA : 7 XMX-AL5, XMX-AL5 XMA-iL5, XMA-iL5 XMA : 7 (), ,5 r = () A ØA = /" BSP (female) ØA = ØB = ØC = ØD = /" BSP (female) () tapped entries for Pg.5 cable gland () tapped entries for Pg.5 cable gland () Minimum clearance zone for screwing-on pressure switch at point A () Minimum clearance zone for screwing-on pressure switch at point A XMX-A5L5, XMX-A5L5 Fixing bracket XMA-i5L5, XMA-i5L5 XMA-ZL Ø5, Ø,,, ØA,5 = = 57 ØC ØA (), ,5,5 = = 57 r = () D C A B XMA : 7 8,5,5 8 5 ØC () ØA, ,5 D,5 = = 57 r = () C A B XMi-i5L5 : ØA only = /" BSP (female) XMi-i5L5 : ØA = ØB = ØC = ØD = /" BSP (female) () tapped entries for Pg.5 cable gland () Minimum clearance zone for screwing-on pressure switch at point A Te /5
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