tel. : +49 (0)8121 C 2574100 fax: +49 (0)8121 C 2574101 email: info@c y - sensors .com http://www.cy - sensors.com markt schwabener str. 8 d - 85464 finsing germany chenyang technologies gmb h & co. kg hall - effect vane sensor cyhme 301 introduction chenyang automotive shaft position monitoring sensor CYHME301 is designed to work in the conditions of automobile environment. the device is produced in compliance with the inte rnational standard and featur es: modern design, accurateness, endur ance , narrow temperature drifting, s mooth and clean output curve as well as non instantaneous dithering. it is ap plicable to engines with electronic ejection. the main applications are in automobile industry, i.e. as a breakerless trigger in electronic systems, in control engineering, especially in those areas where switches/sensors must operate maintenance - free under harsh environmental conditions, e.g. rpm sensors, limit switches, position sensors, speed measurement s, shaft encoders, scanning of coding disks etc. th e CYHME301 is replacement of the similar products (hkz101, hkz101s, hkz121 ) of siemens . they are compatible in electrical and mechanical properties but with different circuitry principle. cross referenc e (table 1) part number replacement CYHME301 hkz101 hkz101s hkz121 features contactless switch/sensor with open collector output (40ma) static switching/sensing high switching/sensing frequency hermetically sealed with plastic unaffected by dirt, li ght and vibration large temperature and voltage ranges integrated protection of overvoltage etc. th e hall effect vane sensor cyhme 301 is a non - contact sensor/switch, which consists of a monolithic integrated hall effect circuit and a special magnetic circ uit hermetically sealed in a plastic package. the sensor is actuated by a soft - iron vane passing through the air gap be tween magnet and hall sensor. measuring principle the hall effect vane sensor consist of a hall ic and a permanent magnet (smco, ndfeb disc or block), which are hermetica lly sealed in plastic (see the following figures). the sensor is actuated by a soft iron vane that passes through the air gap between the magnet and hall ic. the open collector output is conductive (low) when the vane is outside the air gap (see fig. a)), and blocks (high) when the vane moves into the air gap (see fig. b)) . the output remains high as long as the vane positions in the air gap. this is the so called static function. the output signal shape is in this case i ndependent on the operating frequency.
tel. : +49 (0)8121 C 2574100 fax: +49 (0)8121 C 2574101 email: info@c y - sensors .com http://www.cy - sensors.com markt schwabener str. 8 d - 85464 finsing germany chenyang technologies gmb h & co. kg overvoltage is integrated in the circuit in order to protect again st most of the voltage peaks occurring in automotive and industrial applications. the output stage has a schmitt trigger characteristic. most of electronic circuits can be driven directly thanks to the open collector output current of maximum 40ma. mechanical characteristics the hall effect vane sensor is hermetically sealed in a special plastic package, so that it can also be used under harsh e nvironmental conditions. the package is waterproof, resistant to vibration, gasoline, oil and salt. two tubular rivets are incorporated in the package to mount the sensor on the carrier plate. the sensor has three leads for power supply, output and ground. absolute maximum ratings (table 2) supply voltage 30v reverse battery voltage - 40v output off voltage 40v reverse output voltage - 0.5v output current (at ta=25 c ) 40ma for 5 minutes max operating temperature range - 40 c ~ +150 c fe flux conductors fe vane
tel. : +49 (0)8121 C 2574100 fax: +49 (0)8121 C 2574101 email: info@c y - sensors .com http://www.cy - sensors.com markt schwabener str. 8 d - 85464 finsing germany chenyang technologies gmb h & co. kg electri cal characteristics at vcc supply voltage 4.5v ~ 24v supply current 9ma output saturation voltage(sinking 20ma) 0.4v output leakage current 10ua output rise time 2us output fall time 2us output type npn (oc) mechanical parameters (table 4) part number de(mm) operation distance da(mm) release distance min typ max min typ max cyhme 301 0.85 1.45 2.05 1.54 2.29 3.04 test conditions: vcc = 120.1v , t a = 255 c, h=7.10.2mm, e 1 =e 2 vibration level: at ambient operating t emperature: +90c frequency range: 100hz ~ 500hz amplitude: 100m acceleration: 300m/s 2 vibration in x,y,z direction, 8 hours per direction, 24 hours total e 2 e 1 h
tel. : +49 (0)8121 C 2574100 fax: +49 (0)8121 C 2574101 email: info@c y - sensors .com http://www.cy - sensors.com markt schwabener str. 8 d - 85464 finsing germany chenyang technologies gmb h & co. kg tests the following tests are made according to chinese standards and internat ional standards: 1) shock test: acceleration: 30g, time: 18ms, de and da are within the range defined in table 4 2) vibration test: acceleration: 10g, frequency 10hz - 150hz, continuous vibration, 15times, de and da are within the range defined in ta ble 4 3) low temperature test: - 40c, 24h, the deviations of de and da are within 0.2mm 4) high temperature test: +150c, 48h, the deviations of de and da are within 0.2mm 5) temperature shock test: the deviations of d e and da are within 0.2mm 6) test under humid conditions : temperature 40c, humidity: 90% ~ 95%, 48h, de and da are within the range defined in table 4 7) high voltage test: 800v dc between any two leads 8) steady - load test: under max. load, 13 0c, 240h, the deviations of de and da are within 0.2mm a pplication notes the output of these sensors is sinking current (oc, open collector). a pull - up resistor (1k ~ 10k ) should be connected to the sensor output circuit (between power supply + and output). 60min 60min 3 min - 40c vcc CYHME301 out gnd 1k ~ 10k vcc (red wire) +4.5v ~+24v output s ignal vo (green wire) gnd (black wire) +125c
tel. : +49 (0)8121 C 2574100 fax: +49 (0)8121 C 2574101 email: info@c y - sensors .com http://www.cy - sensors.com markt schwabener str. 8 d - 85464 finsing germany chenyang technologies gmb h & co. kg mounting dimensions (for reference only) the type and length of the leads can be made according to customers requirements the stan dard length of the leads is 150 mm . diameter: ?1.4mm red black green (vcc ) (gnd) (out) ?2.6
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