Laser Displacement Sensor 3Z4M

Transcription

1 Laser Sensor High Resolution to 1 µ or 5 µ, Gives Precise Linear Output and Displays Distance Distance is displayed in millimeters on controller Ready-to-use linearized output is both -1 to +1 VDC and 4 to 2 ma Sensing distances of 4 mm and 1 mm Color of target has minimal effect on sensing UL/CSA approved, FDA Class IIIb certified Small sensing head Ordering Information LASER DISPLACEMENT SENSOR SYSTEM Sensor heads and controllers are ordered by specifying the appropriate system part number for the desired sensor/controller combination. Each part includes a sensor and controller. Sensing range Resolution Cable length Part number (Sensor head + Controller) with distance display 3 mm to 5 mm 1 µm 5 m -J11-81 (1.18 in to 1.97 in) 1 m -J mm to 13 mm 5 µm 5 m -J (2.76 in to 5.12 in) 1 m -J EXPLANATION OF PART NUMBERS: (Sensor heads and controllers cannot be ordered separately.) System part number Sensor head part number Controller part number -J S1-6 -J1-81 -J S1-7 -J S22-6 -J J S22-7 1

2 Specifications OPERATING CHARACTERISTICS Model (with digital display) -J11- -J1222- Supply voltage 12 VAC, +1%, -15%, 5/6 Hz Current consumption 15 VA Measuring range ±1 mm (.39 in) ± 3 mm (1.18 in) Center distance of measurement (See Notes 1 and 2) 4 mm (1.57 in) 1 mm (3.94 in) Light source Laser diode (wavelength: 78 nm; light output: 5 mw max.) Spot size (See note 2).6 X.3 mm 1. X 2. mm Resolution (See note 3) 1 µm 5 µm Zero point adjustment (for fine tuning to zero) ±.7 mm ± 2 mm Sensitivity selection Switch-selectable between 2 levels, LOW and HIGH Input Remote interlock input External switching impedance: 3 Ω max. Outputs Analog displacement output -1 to +1 V/full scale, 4 to 2 ma/full scale Alarm output One open-collector output (1 ma max. load at 3 VDC); when DARK, BRIGHT, or RANGE is ON, the alarm output is ON. Response speed (See note 4) 1 ms or 2 ms (switch selectable) Ambient operating light intensity 3, lux or less (white light) Ambient temperature Operating to 5 C (32 to 122 F) Storage -25 to 65 C (-13 to 149 F) Displays Data display 3 1/2 digits (with minus sign) 3 digits (with minus sign) Alarm display 3 LED s: DARK, BRIGHT, RANGE Power display Green LED is lit when power is ON Enclosure UL NEMA IEC 144 Sensor- IP5; Controller -No protection Laser protection class FDA Class IIIb, Accession # Approvals UL Recognized, File Number E41515 CSA Certified, File Number LR Note: 1. The reference point of the displacement measurement is the distance from the sensor front surface to the object to be measured. 2. The spot size changes depending on the distance as follows: -S1.4 mm.3 mm.2 mm.8 mm.6 mm.4 mm 3. Rise and fall times (1% to 9%) of analog displacement output when the displacement variable changes stepwise. 1% 9% 3 mm 4 mm Center distance 5 mm Laser Beam Analog displacement output Tr Tf 1.5 mm 1. mm.8 mm -S22 3. mm 2. mm 1.5 mm 7 mm Laser Beam 1 mm Center distance 13 mm 2

3 Engineering Data Objects that reflect diffused light can be measured with high precision. Errors may occur when shiny, reflective objects or transparent objects are measured. Measurements with various types of materials are shown below. (Temperature: 23 ±3 C) White paper Black paper Aluminum Iron sheet Black rubber ABS resin

4 -J1 Colored paper: Green Black rubber Colored paper: Red Colored paper: Black Iron sheet Aluminum plate

5 Nomenclature SENSOR HEAD -S1, -S22 Reference plane Laser emitter Laser emission mark Laser emission Light receiver Mounting screw Cable CONTROLLER (WITH DISPLAY) -J1-81, -J12-85 Data display (LED display), see note POWER switch Laser emission Alarm LEDs Connection for sensor head Sensitivity level selector Response level selector Zero point adjuster Note: J1: 3 1/2-digit data display J12: 3-digit data display Operation FUNCTIONS Item Applicable model Function Data display Displays the position displacement from the center of the measurement in units of mm. -J1 Model Lo Measuring range (± L) -J1 4 mm -1 to 1 mm -J12 1 mm -3 to 3 mm Lo (center distance of measurement) NEAR - + Alarm indication -J1 The RANGE (LED) lights when the object to be measured is outside the measuring range of the displacement meter. The following two LED s light according to the quantity of light incident on the receiver. When the light is too strong, the BRIGHT is ON. When the incident light is too weak, the DARK is ON. RANGE Model Measuring range (± L) -J1 4 mm ± 1 mm -J12 1 mm ± 3 mm Lo- L Lo Lo+ L NEAR Measuring range 5

6 Item Applicable Function model Analog displacement Outputs an analog signal according to the measuring distance. output -J1 Model Measuring range ( L) Voltage output Current output -J1-1 to 1 mm Load impedance: Load impedance: 1 KΩ min. 5 Ω max. -1 V to 1 V 4 to 2 ma -J12-3 to 3 mm Load impedance: Load impedance: 1 KΩ min. 5 Ω max. -1 V to 1 V 4 to 2 ma Analog voltage +1 V NEAR - L -1 V + L Analog displacement Data hold Analog current 2 ma Alarm output OFF Time ON OFF 12 ma - L NEAR 4 ma + L Alarm output When one of the RANGE, BRIGHT, or DARK alarm s light, the alarm output -J1 turns on. The output is an open-collector type (maximum load current: 1 ma: maximum voltage: 3 V). External DC voltage must be provided. Zero point adjustment Minute adjustments can be performed on the zero point of the displayed value (analog -J1 displacement output) with the variable resistor (VR) on the lower side of the front panel. Data display +1 V Data display +1 V -1.7 mm -.7 mm mm +1.7 mm -1 V Measuring range -32 mm -2. mm mm +32 mm -1 V Measuring range min ±.7 mm With J1 min ± 2 mm With J12 6 Response speed selection The averaged time of the analog displacement output can be selected with the -J1 response selector switch on the lower side of the front panel. Sensitivity selection Normally, objects with a high reflection factor, as well as those with an allowable J1 reflection factor can be measured without sensitivity selection. However, when J12 measuring an object which reflects an extremely low quantity of light, use with the SENSITIVITY selector switch on the lower side of the front panel. Remote interlock terminals These terminals are in series with the on/off switch on the controller. A jumper is -J1 provided across terminals 1, 2, and 3 (3 is unused). If a remote interlock is needed, remove the jumper and connect a switch across terminals 1 and 2. Laser emission When power is turned ON, the laser emission lights immediately. -J1

7 Dimensions Unit: mm (inch) SENSORS -S1- Laser emission 2 position (.79) 1 5 (.2) (.39) 11 (.43).5 (.2) Laser 17.3 (.68) emission 5 (1.97) 4 (1.57) 5 (.2) 2 (.79) 18 (.71) Lens Cover 45 (1.77) 55 (2.17) 57 (2.24) Cable grips In-line Connector in Sensor Cable Press-fit joints 8.5 (3.17) Two M4 screw holes 37.5 (1.48) 6.6 dia. +.6 / (3.15) 14.7 (.58) dia. (Cable thickness) Cable strap -S22-.1 (.4).1 (.4) 48 (1.89) 3.7 (.15) 43 (1.69) 1.5 (.41) 5 Two M4 screw holes 18 (.71) Lens Cover Laser emission position 4 (1.57) P= 35.6 ± dia. +.4 / dia. Cable grips 42 (1.65) 2 (.79) 3.7 (.15) 3.7 (.15) P=35.6 ± (.15) Laser emission 1.5 (.41) 8 (3.15) Cable strap CONTROLLERS -J1-81 -J (3.78) 16 (.63) 13 (.51) 176 (6.93) 16 (6.3) 1 (.39) 47 (1.85) 2 (.79) 91 (3.58) 28 (1.1) 7

8 Installation TERMINAL ARRANGEMENT -J1-, -J12- Analog output (4 to 2 ma) Analog output (+1 VDC) Alarm output 12 VAC, 5/6 Hz Remote interlock F.G. OUTPUTS OF DISPLACEMENT METER CONTROLLER Analog Voltage Output Analog Current Output Alarm Output V Load to 2 ma Load 5 4 Load Load impedance must be 1 KΩ or more Load impedance must be 5 Ω or less Load (3 V, 1 ma) Remote Interlock 2 Y Main circuit 1 Input impedance must be 3 Ω or less Precautions SAFETY The laser displacement sensors -J1 and -J12 are classified as Class IIIb laser products by the FDA. Accession number is and is identified as such by the warning label. Looking directly into the beam may cause damage to the eyes. 8

9 LABELS Information labels and a laser radiation warning label are located on the sensor head. When installing the, position the sensor head so these labels can be viewed easily by the operator and maintenance personnel. INSTALLATION Install the sensor head in a location where the laser beam will not enter the operator's eyes directly or from reflection by a mirror surface. Also, mount the operation (LED) in an easily visible position. When installation in a location presents unavoidable exposure, use a screen or another item to guard the laser beam from leaking to the outside. The laser radiation emitted by the is invisible. Avoid eye and body contact with the beam. Do not look directly into the beam. AVOID EXPOSURE Invisible laser radiation is emitted from this aperture LASER RADIATION AVOID DIRECT EXPOSURE TO BEAM LASER DIODE 5 MILLIWATT MAXIMUM OUTPUT CLASS III B LASER TYPE -S1 Tc=25 C, 5 mw T:111µsec ts:55.4µsec f: 8 khz This product complies with 21 CFR 14, 1 and 14,11 OMRON CORPORATION 1 TSUCHIDO-CHO, HANAZONO, UKYO-KU, KYOTO 615 JAPAN MANUFACTURED,1991 A Incorrect: MAINTENANCE Users should not try to carry out repairs or maintenance on the, which contains no serviceable parts. Refer all servicing to OMRON. Never disassemble the unit. Laser beam SENSOR CABLE The sensor cable must not be connected to, nor disconnected from, the when the controller is switched ON. Correct: REMOTE INTERLOCK By removing the jumper across terminals 1 & 2, a remote interlock switch may be connected. The laser will only work when the remote interlock switch is closed and the power switch is ON. Screen NOTE: DIMENSIONS ARE IN MILLIMETERS. To convert millimeters to inches divide by OMRON ELECTRONICS, INC. OMRON CANADA, INC. One East Commerce Drive 885 Milner Avenue Schaumburg, IL 6173 Scarborough, Ontario M1B 5V OMRON Cat. No. GC MSEN3 2/98 Specifications subject to change without notice. Printed in the U.S.A. 9