MPM589 Electronic Pressure Switch Features ■ Stainless steel material for housing and pressure port; ■ Small size, beautiful appearance and easy installation; ■ Good durability, high reliability and long service life; ■ Amplifier circuit driving switch relay; relay value could be set freely between zero and FS; ■ Full metal housing, no moving parts and maintenance-free. Introduction MPM589 Electronic Pressure Switch is applied to collect the pressure changing states in hydraulic pressure or lubrication system, converting pressure signal to electrical signal. The product is mainly used for pressure control of machine tool, metallurgy or hydraulic system of food industry. The electronic pressure switch has two setting potentiometers--one for pressure point adjustment and switch(ON pressure setting) and another for differential pressure adjustment(OFF pressure). The specific operation state is as followed: As the pressure rises to the preset pressure switching point(ON pressure setting), one way switch outputs signal and LED indicator lights. When such output state is maintained until the pressure falls to below returning point(returning point = ON pressure setting-OFF pressure), the switch signal could not output and LED indicator is out. Specification ■Control Range: 0MPa~1MPa...60MPa ■Overpressure: 70MPa ■Pressure Setting: set by trimmer potentiometer-- “pressure setting”(see potentiometer adjustment diagram in “setting methods ”) ■Differential Pressure Setting: set by trimmer potentiometer--“differential pressure setting”(“Pressure setting” value within -1% ~ -10% ) ■Action Display: reaching the preset pressure, LED indicator light on. ■Output: Open joint(insulated by light isolation), Max. Operation voltage: 35V DC, Max. Current: 100mA ■Power Supply:10V~28VDC(including fluctuation),supplied by constant voltage, loss current: <10mA ■Insulation Resistance: >100MQ (50V) ■Response: 1.5ms(without damping) 20ms(with damping) ■Repeatability: around ±0.5% ■Operation Temp.: -20°C~70°C MICRO SENSOR CO.,LTD. - 1 - http://www.microsensor.cn Add: No.18,Yingda Road Baoji,P.R.China, 721006 Tel: 0917-3600739 3

MPM589 Electronic Pressure Switch ■Set-point changes with temperature changing: less than1%/10°C of max. operation pressure. ■Storage Temp.: -40C~105C ■Protection : IP54 (IEC Pub.529) ■Shock: 98m/s2(10Hz—55Hz) X orientation: 2h, Y orientation: 2h, Z orientation: 2h 2 ■Impact: 98m/s ■Weight: around 200g Notes: Trimmer potentiometer rotating angle is 0°~260° Construction Material Housing: Stainless steel 304 Sealed ring: Viton Sensor housing: Stainless steel 1Cr18Ni9Ti Outline Dimension(Unit: mm) Electric Connection Wire Color MICRO SENSOR CO.,LTD. - 2 - http://www.microsensor.cn Add: No.18,Yingda...

MPM589 Electronic Pressure Switch OFF pressure setting-use trimmer capacitor ON pressure setting-use trimmer capacitor (DIFF trimmer capacitor) (ON trimmer capacitor) white— -output green- -output (DIFF trimmer capacitor •The output circuit of pressure switch(internal circuit) • Occasion of direct drive relay > Please choose the relay action below 100mA; > Please connect diode “D” used for absorbing impact voltage in parallel with the relay coil; > Diode “D” is connected between white and green for protection. MICRO SENSOR CO.,LTD. - 3 - http://www.microsensor.cn Add: No.18,Yingda Road...

MPM589 Electronic Pressure Switch MICRO SENSOR CO.,LTD. - 4 - http://www.microsensor.cn Add: No.18,Yingda Road Baoji,P.R.China, 721006 Tel: 0917-3600739 3600832 Fax: 0917-3600755