3 to 5 mm, adjustable Sensing Supply voltage Output 9 to 5AC, 5/6 Hz 1 to 4DC ma ma, NPN or PNP Capacitive Proximity Sensor Cylindrical Sensor Offers Adjustable Detecting Distance Permits non-contact detection of metallic and non-metallic objects such as glass, wood, water, oil and plastic Allows indirect detection of materials inside non-metallic containers Adjustable detecting distance from 3 to 5 mm Built-in amplifier accepts wide range of supply voltages and switches up to ma Mounting bracket included Ordering Information SENSORS Type Unshielded Nominal detecting distance 3 to 5 mm (.1 to.98 in), adjustable Output type NO NC Part AC switching type (SCR) 5MY1 5MY number DC switching NPN 5ME1 5ME type PNP 5MF1 5MF REPLACEMENT PARTS Description Mounting bracket for (supplied with sensor) Part number Y9E-A34 TYPICAL APPLICATIS Detecting fill level in non-metallic containers Detecting and maintaining level of liquid in storage tanks Milk carton S3D8 sensor controller sensor Reject Upper limit sensor (EK- C5ME1) Foam Ejector Accept Lower limit sensor (EK- C5ME) Plastic or glass tube Beer (frothy liquid) Tank Drain valve Pump 1
Specifications Part number 5M 5MY Sensor type Capacitive Body Size 34 mm (1.34 in) diameter Type Unshielded Supply voltage 1 to 4DC, 1% max. permissible 9 to 5AC, 5/6 Hz ripple peak to peak Current consumption 1 ma max. at 1 VDC 1 ma max. at 1AC 15 ma max. at 4 VDC ma max. at AC Detectable object type Metallic and non-metallic objects Sensitivity Adjustable Effective maximum detecting distance (with standard target) 3 to 5 mm (.1 to.98 in) 5 x 5 x 1 mm (. x. x.4 in) 15% max. of detecting distance Standard target size (grounded mild steel, L x W x H) Differential travel Control AC Type SCR-NO (5MY1) output solidstate SCR-NC (5MY) Max. load ma Min. load 5 ma Max. off-state See Leakage Current Characteristics leakage current graph in Engineering Data Max. on-state V max. voltage drop DC Type NPN-NO open collector with pull-up solidstate NPN-NC open collector with pull-up PNP-NO open collector with pull-down PNP-NC open collector with pull-down Max. load ma Max. on-state See Residual Voltage graph in voltage drop Engineering Data Response frequency 7 Hz 1Hz Circuit protection Output shortcircuit Not provided DC power supply Provided Not provided reverse polarity Weld field immunity Not provided RFI immunity Not provided Indicators Target Present (red LED) Output Operation (red LED) Materials Housing Plastic Sensing face Plastic Cable sheath Plastic Mounting Bracket Y9E-A34 included Connections Prewired Three-conductor cable, m (6.56 ft) length Two-conductor cable, m (6.56 ft) length Weight with cable Approx. g (7. oz.) Enclosure UL 1 ratings NEMA 1, 4, 1, 13 IEC 144 IP67 Approvals UL Listed, File Number E76675 CSA Certified, File Number LR45951 Ambient operating temperature 5 to 7 C ( 13 to 158 F) Vibration 1 to 55 Hz, 1.5 mm (.6 in) double amplitude Shock Approx. 5 G's
OUTPUT CIRCUIT DIAGRAMS AND TIMING CHARTS AC Switching Types 5MY White (Black) Target Present Absent Prox. switch main circuit Black (Blue) Operation indicator NO NC NO NC Operates Releases Operates Releases Note: IEC colors are shown in parentheses. DC Switching Types 5ME The dotted line shows a transistor circuit load. 5MF The dotted line shows a transistor circuit load. Prox. switch main circuit 4.7 KΩ Ω Red (Brown) D D 1 + V Red (Brown) ZD White (Black) Prox. White (Black) switch. Ω main D Ω circuit Tr ZD Black (Blue) 4.7 KΩ Black (Blue) Tr + V Note: IEC colors are shown in parentheses.. Ω D 1 Target Present Absent 5ME1 NO 5ME NC Target Present Absent 5MF1 NO 5MF NC (between red and white) Logic (between white and black) Operation indicator Operates Releases H L (between white and black) Logic (between red and white) Operation indicator Operates Releases H L Engineering Data Operating Range 5MY1 Detecting distance X (mm) StandardX target Detecting 3 head Y 5 15 1 5 Setting distance 5mm mm 15mm 1mm 5mm 5 15 1 5 5 1 15 5 Y (mm) Detecting head 3
Detecting Distance vs. Size and Material of Target 3 Detecting Distances of Common Materials Detecting distance X (mm) 5 15 1 5 Detecting distance X Grounded mild steel t = 1 mm Ungrounded mild steel t = 1 mm Phenolic resin plate t = 6 mm Detecting distance X (mm) 5 15 1 5 1 3 4 5 6 7 8 9 1 Size of target (mm) Grounded mild steel (5 x 5 x 1 mm) Milk (5 ml) Flour Sugar Salt Phenolic resin (5 x 5 x 5 mm) Neoprene rubber (5 x 5 x 5 mm) Glass ( x 5 x 3 mm) Soft wood (16 x 1 x 15 mm) Plastic resin pellets Residual Voltage Characteristics AC switching types 5MY 1AC AC DC switching types 5M 4VDC voltage (V) Residual 1 output (V Residual voltage ).5 output 1 voltage 9 4 VDC 8 15 7.1 6.5 5 1 AC 4 1V (V 1 ) 3 AC 5 V Residual Residual load.1 1 load voltage voltage 1 5 1 5 1 1 5 1 5 1 5 1 15 5 current (ma) current (ma) current (ma) Note: When the current rating of the load is less than 1 ma, false operation may occur. This is normal, and the problem can be cured by installing a bleeder resistor in parallel with the load. Use the formulas given here to calculate the power rating and value of the resistor. Leakage Current Characteristics AC switching types 5MY 3. voltage (V) voltage (V) R < (kω) P > V S = (mw) 1 i R P i V S V S : Power rating of bleeder resistor : current (ma) : Supply voltage (V).5 Leakage current (ma). 1.5 1..5 4 state 8 1 1 14 16 18 4 6 Supply voltage (V)
Dimensions Unit: mm (inch) SENSORS 5M 34 (1.34) dia. (.79) 8 (3.3) 31 (1.) Cap screw for sensitivity adjustment 6 (.4) Operation indicator (LED).15 (.6) Note: Cable may be extended to m (656 ft). Cable: m (6.56 ft.) length MOUNTING BRACKET Y9E-A34 (supplied with sensor) 5. (.) 45 (1.77) 43 (1.69) R.6 (.1) 4 (1.65) 6.3 (.5) Two elliptic holes for bracket mounting (.8) 35 (1.38) 3.5 (.93) 15 (.59) Two M4 sensor clamping screws 55 (.16) Sensor mounting hole proximity sensor 51 (.1) 14 (.55) 45 (1.77) 58 (.8) 3 (1.18) Two 5.5 (.) dia. mounting holes 35 (1.38) 6 (.4) Mounting EFFECTS OF SURROUNDING METALS When mounting the sensor, be sure to provide the minimum distance shown in the diagram. This prevents the sensor from being affected by metallic objects other than the target. Also, when using the supplied mounting bracket, be sure to allow a distance of mm or more between the detecting face and the mounting bracket. To ground (.79) 8 (3.15) mm min. mm min. Detecting face Metal Surrounding conductive object 8 (3.15) mm min. 8 (3.15) mm min. 8 (3.15) mm min. Surrounding conductive object MUTUAL INTERFERENCE To prevent mutual interference, be sure to space the two sensors at a distance greater than that shown in the diagrams. Opposed mounting Parallel mounting 1 (3.94) mm min. 1 (3.94) mm min. 5
SENSITIVITY ADJUSTMENT NO type (5M 1) Remove protective rubber plug to gain access to sensitivity adjustment screw. Use the screwdriver provided with each sensor to turn the sensitivity adjustment screw. ) Place a target in front of the sensor. Turn the sensitivity adjustment screw COUNTERCLOCK- WISE until the sensor turns and the indicator goes out. Note the number of revolutions between and positions Ṡensitivity adjustment 4) Now turn the sensitivity adjustment screw CLOCKWISE to the midpoint between the and points. 1 point 1 Set at midpoint between and points point 1) Remove any targets from in front of the sensor. Turn the sensitivity adjustment screw CLOCKWISE until the sensor turns and the indicator illuminates. Sensitivity adjustment Stop when the sensor turns Stop when the sensor turns 3) If the number of revolutions is greater than one and a half, the sensor will provide stable output. If the number of revolutions is less than one and a half, increase or decrease the distance between the target and the sensing face as necessary to allow at least one and a half revolutions between the and positions. 1 point 5) If the distance between the target and the sensor is not constant, perform the first adjustment operation (#1) when the target is at the closest position to the sensor. Then perform the second adjustment operation (#) when the target is at the farthest position from the sensor. Stable operation if the difference is more than 1.5 turns NC type (5M ) The sensitivity adjustment procedure for NC type proximity sensors is the same as for NO type sensors, with the exception that and operations of the proximity sensor and and points in the adjustment procedure are exactly reversed. USING METAL CDUIT If a high voltage of power line runs near the proximity sensor cable, be sure to wire the sensor cable through a metal conduit to protect the sensor from malfunctioning or damage. SURGE PROTECTI The proximity sensor is provided with a surge suppressor circuit. However, if any large surge generating source (i.e., motor, welding machine, etc.) exists in the vicinity of the proximity sensor, insert a surge suppressor (such as a varistor) into the surge generating source. 6
Application Examples For two-unit control to directly detect a water level, use type 5ME1 and 5ME proximity sensors together as a pair, connected as shown in the examples below. For water supply control by directly detecting the water level A: Water supply valve Out (Reset) 1 VDC 5ME Black Brown Blue 5ME1 Black out (Set) Brown 1 VDC Blue Timing Chart Connect water supply valve "A" to the NO contact of sensor controller S3S-B1-US. 1AC 4AC POWER Set (E1 type) Reset (E type) Output relay For water drainage control by directly detecting the water level 5ME Black Brown Blue Out (Reset) 1 VDC 5ME1 1AC 4AC B: Water drainage valve Timing Chart Connect the drain valve "B" to the NO contact of sensor controller S3S-B1-US. Black Brown Blue Out (Reset) 1 VDC POWER Set (E type) Reset (E1 type) Output relay NOTE: ALL DIMENSIS ARE IN MILLIMETERS. To convert millimeters into inches divide by 5.4. 7
Omron Europe B.V. EMA-ISD, tel:+31 3 568139, fax:+31 3 5681397, http://www.eu.omron.com/ema Cat. No. CEDSAX 3/97 Specifications subject to change without notice. Printed in the U.S.A. 8