Pressure control for air and water Type CS

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1 MAKING MODERN LIVING POSSIBLE Data sheet Pressure control for air and water Type CS CS controls have a built-in operated, three-pole switch. The contact position of which depends on the in the connector and the range setting and adjustable differential. The controls are fitted with a manual switch that will lock the contact system in the open position independently of the in the system. Pressure controls with relief valve is used in compressed air systems where relief on the compressor piston before start is required. The CS is suited for automatic start and stop of air compressors and water boosters. Features y Pressure ranges 0 bar, y Pressure connection G / or G /, y Contact system 3-pole (TPST) as standard and -pole as accessory, y Adjustable differential, y Relief valve as accessory, y Manual switch to lock the contact system, y Enclosure IP3 or IP, y Special versions with connection made of polyacetal suitable in drinking water applications. Approvals EN EN China Compulsory Certificate, CCC IC.PD.P0.H3.0 / 0B93 A/S (AC-MCI / jmn), 03-08

2 Technical data Specifications A3E3.0 A E Contact load I e U e AC-3 A 0 V AC-3 9 A 600 V D C DC-3/ A 0 V (3 contacts in series) F B Electrical life on rated load operations Mechanical life operations Ambient temperature C Temperature of medium Water 0 70 C Air C Vibration-proof Hz at g Direction A-B 3 Hz Resonance frequency Direction C-D 33 Hz Direction E-F 88 Hz Diaphragm material Hytrel Pressure connector Special Polyacetal, G ½ Others Silumin, G ¼ or G ½ Pressure relief valve (capacity) 000 cm 3 from 0 to bar in 8.8 sec. Grade of enclosure to IEC 9 IP3 or IP Properties according to EN 6097 solid / stranded 0.7. mm Wire dimension flexible, with / without ferrules 0.7. mm flexible, with ferrules 0.. mm Tightening torque max.. NM Rated impulse voltage kv Pollution degree 3 Short circuit protection, fuse A Insulation 600 V IP-index IP3 or IP IC.PD.P0.H3.0 / 0B93 A/S (AC-MCI / jmn), 03-08

3 Ordering Standard switch type CS p e [bar] Min. differential Δp [bar] Max. differential Δp [bar] Max. test p e [bar] Grade of enclosure Pressure connection Code no IP3 G ¼ 03E0066 -pole IP3 G ¼ 03E pole IP G ¼ 03E pole IP3 G ½ 03E pole IP G ½ 03E066 3-pole IP3 G ¼ 03E pole IP G ¼ 03E066 3-pole IP3 G ½ 03E pole IP G ½ 03E pole IP3 G ¼ 03E pole IP G ¼ 03E066 3-pole IP3 G ½ 03E pole IP G ½ 03E066 3-pole Type Preferred version Special versions with Polyacetal connection - suitable for drinking water p e [bar] Min. differential Δp [bar] Max. differential Δp [bar] Max. test p e [bar] Grade of enclosure Pressure connection Code no IP3 G ½ 03E pole IP3 G ½ 03E066 3-pole IP3 G ½ 03E066 3-pole Type Accessories and spare parts Description Three pole contact system (TPST) Pressure relief valve, incl. fixing screw (for 6 mm pipe / hose) Pressure relief valve, incl. fixing screw (for / in. pipe / hose) Two Pg 6 screwed cable entries with gaskets (cable diam. 6. mm) Nipple with 7/6-0 UNF and M0 x int. Code no. 03E E E E E09666 A/S (AC-MCI / jmn), IC.PD.P0.H3.0 / 0B93 3

4 Design / Function. Slide ring. Earth screw 3. Cover screw. Cover. Spindle 6. Toggle arm 7. Snap spring 8. Snap arm 9. Switch housing ass y 0. Self-tapping screw. Manual switch. Base 3. Grubscrew. screw. Pressure pad 6. Spring retainer 7. Compression spring 8. Pressure shoe 9. Diaphragm 0. Flange, G ¼ or G ½. Cap. Differential arm 3. Tension spring. Differential screw. Bracket E The switch is built up of the following main elements: connector, diaphragm, snap system, main spring, differential spring and a 3-pole or one-pole contact system. The stop must be set on the main spring and the difference between start and stop s on the differential spring. Pressure from the controlled system is led, via the connector, to the diaphragm. The diaphragm converts this to a mechanical movement which is transferred by the snap system to the contact system. In this way, the contact system starts or stops a compressor/pump. IC.PD.P0.H3.0 / 0B93 A/S (AC-MCI / jmn), 03-08

5 Setting Δ p 3E3. Note! If the differential is set at a value greater than the stop the plant cannot start. If this is the case, set the differential at a smaller value (towards minus). P All standard versions of CS controls are preset and supplied with springs under minimum compression.. Turn the stop screw () the given number of times towards + (high stop ), see stop graph.. Turn the differential screw () the given number of times towards + (max. differential), see differential nomogram. 3. Start the plant and let it run until the required stop is reached.. Reduce the to the required start. 6. Turn the differential screw () towards minus (smaller differential) until the plant starts. 7. Check that the plant stops and starts at the required s.. Turn the stop screw () towards minus (lower stop ) until the plant stops. graph P e [bar] Ex. 7 0 bar bar 6 bar E7. Turns of P e screw Example A compressor is to be regulated by a CS switch. The start is 3. bar, and the stop bar. The choice should be a CS with a range of 6 bar.. Turn the stop screw () about times. See cut-off graphs.. Turn the differential screw () about. times. See CS 6 nomogram. Take a straight line from bar stop on the nomogram to the differential,. bar and read off the number of turns, i.e... A/S (AC-MCI / jmn), IC.PD.P0.H3.0 / 0B93

6 Mains connection 3-pole -pole a.c. load A3E6.0 6 A3E6.0 -pole d.c. load 3 6 A3E63.0 Contact load I e U e A 0 V AC-3 9 A 600 V DC-3/ A 0 V (3 contacts in series) Dimensions [mm] and weights [kg] E AUT 0 G ¼ G ½ Pg 6 Net weight approx. 0. kg 6 IC.PD.P0.H3.0 / 0B93 A/S (AC-MCI / jmn), 03-08

7 Installation 3E.7 3 Recommended orientation The switches will operate regardless of their orientation. However, to meet the enclosure requirements of IP3 and IP, they must be mounted vertically with the connection downwards. The CS switches are self-supporting (on the connection). Fitting a relief valve. Remove the blanking plug. Fit the relief valve 3. Fit the plastoform screw 3E. d M0 ø / ø in. / in. Fitting screwed cable entries The accessory bag contains two sets of metal gaskets each with different internal diameters. These will give a sufficient cord relief if used correctly with the cable diameter concerned. d > 8. mm d 8. mm 03E093 Δ t Drain hole If because of large temperature variations there is a risk of condensate forming in the switch, a screwdriver can be used to make a drain hole in the enclosure. A3E8. 3E. Differential nomograms Differential Differential Differential [bar] [bar] [bar] [bar] [bar] [bar] Ex No. of turns on Δp screw CS 6 bar...7 3E No. of turns on Δp screw CS bar E No. of turns on Δp screw CS 7 0 bar E. A/S (AC-MCI / jmn), IC.PD.P0.H3.0 / 0B93 7

8 Application examples CS A CS A3E.0 A3E7.0 Example Control of an air compressor with a CS switch. Example Control of a compressor with a CS switch fitted with relief valve. Note the check valve between relief line and reservoir. CS A CS EV A: Motor starter or automatic star-delta switch A3E.0 A A3E.0 Example 3 Control of an air compressor with a CS. An EV0B 3B solenoid valve is recommended where there is need for especially fast relief. Example Control of a centrifugal pump with a CS, via an automatic star-delta switch, motor starter, or similar. A3E6.0 Example Pressure boosting system for domestic circuits. A type CS switch is used to start/stop the pump. 8 IC.PD.P0.H3.0 / 0B93 A/S (AC-MCI / jmn), 03-08

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