Руководство по эксплуатации Kuhnke DW20S - Сушильный датчик (EN)

Email: sales@impulseautomation.co.uk Website: www.impulseautomation.co.uk Kuhnke Pressure or Vacuum Switch Adjustable High Sensitivity Pressure Wave Switch Technical information Pressure range: 3-30 mbar vacuum or pressure. Max pressure: 100 mbar Temperature range: -15˚C...+70˚C Contact material: Ag - hard silver Contact rating: Max, 1 Amp/220V AC Switching rate: Max. 25Hz Hysterisis: 0.5 mbar if free from vibration. Dimensional drawings Response Sensitivity of the Pressure Level Switch 0,9 1,0 Temperature compensation of the switch is given by the adjusting screw. The highest sensitivity of the switch is obtained when the adjusting screw is fully in.

However, this results in temperature imbalance. The fully out position of the adjusting screw guarantees pressure and temperature balance, but with reduced sensitivity. With an operational setting of 0.2 mm temperature fluctuations of 30°C/20 min. are accomodated. 0,7 0,8 0,5 0,4 0,6 Current amps. 0,3 0,2 Function 0,1 2 6 10 14 30 18 22 26 Impact generates pressure within a rubber profiled tube; this signal is transferred via pneumatic tubing to the pressure wave switch. The internal diaphragm deflects, and the electrical contacts close. By adjusting the contact screw (K) and valve screw (V), the sensitivity of the switch can be altered.

Valve opening = 0,2 mm Pressure p mbar Permissible Contact Load As long as no extremes of ambient temperature are encountered the minimum static pressure in mbar can be determined on the basis of optimum contact opening and current consumption of the connected component. The diagram below indicates a setting of 0.2 mm for the valve needle. 58 1,0 Valve opening Document No: PS001 Revision 2 4 0,8 0,9 0,7 0,6 0,5 Contact gap mm 0,4 0,2 0,3 30 0,1 2 4 6 10 20 8 16 12 14 18 Pressure p mbar M 3 Impulse Automation Limited United Kingdom Company Registration 665193 Information shown in these data sheets are for guidance purposes only, no liability is accepted for any errors or omissions.

The designer or user is solely responsible for the safe and proper use of these parts, assemblies or equipment described. bol Description Switching range Connection Order code Press ure wave switch (DW20S) normally open 3 - 30 mbar Tube with 3mm id 60.006 Contact opening 0,2 0,5 1,0 0,2 0,5 ,0 1 ø3 1/500~ 1/300a-c + S 58 44 2 0, 1 ,0 2,0

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