461960

User's Guide RPM Controller / Monitor Model 461960 Introduction Congratulations on your purchase of the Extech 461960 RPM Controller/Monitor. This meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. Features ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ Professional Tachometer ( RPM, m/min., ft/min. ) monitor and controller. Build in control relay and alarm relay. Alarm Relay will close when the measured value reaches the high or low alarm value. Control Relay will close when the measured value reaches the control value. Hysteresis value setting for control and alarm function. Set the number of input pulses per revolution. Settable roller diameter for the surface speed ( m/min., ft/min. ) function. Works in conjunction with the optional proximity or photo sensor. Large easy to read red LED display. RS232 computer interface for use with optional software. Microprocessor circuit ensures high accuracy and provides special functions and features. Standard 96 X 48 mm DIN case. Optional data acquisition software. Warranty EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and workmanship for one year from date of shipment (a six month limited warranty applies to sensors and cables). If it should become necessary to return the instrument for service during or beyond the warranty period, contact the Customer Service Department at (781) 890-7440 ext. 210 for authorization or visit our website www.extech.com for contact information. A Return Authorization (RA) number must be issued before any product is returned to Extech. The sender is responsible for shipping charges, freight, insurance and proper packaging to prevent damage in transit. This warranty does not apply to defects resulting from action of the user such as misuse, improper wiring, operation outside of specification, improper maintenance or repair, or unauthorized modification. Extech specifically disclaims any implied warranties or merchantability or fitness for a specific purpose and will not be liable for any direct, indirect, incidental or consequential damages. Extech's total liability is limited to repair or replacement of the product. The warranty set forth above is inclusive and no other warranty, whether written or oral, is expressed or implied. 2 461960 V1.1 8/07 Safety International Safety Symbols Caution : Risk of electric shock ! This symbol, adjacent to a terminal, indicates that, under normal use, hazardous voltages may be present Caution : Risk of electric shock ! This symbol, adjacent to another symbol or terminal, indicates the user must refer to the manual for further information. Equipment protected throughout by Double Insulation or Reinforced Insulation. Safety Procedures ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ Do not use fingers or any tool to touch the Wire Terminals. Do not exceed 0.5A relay contact load. The instrument contains no user serviceable parts and should not be opened by the user. Repair or service should be done by a qualified technician only. Always apply the correct ACV power voltage Cleaning - Only use the dry cloth to clean the plastic case ! Operating conditions Comply with EN61010. Transient overvoltage at Mains Supply 2500V. Pollution Degree 2. Altitude up to 2000 meters. Indoor use. Relative humidity 80% max. 3 461960 V1.1 8/07 Meter Description 1. 2. 3. 4. 5. 6. 7. 8. 9. Display PV ( process value ) indicator SV ( set value ) indicator Set Button ▼ Button ▲ Button Function Button Control relay indicator Alarm relay indicator 10. RPM indicator 11. ft/min indicator 12. m/min indicator 13. Wire terminals 14. Case holder 15. RS232 terminal Terminal connections Do not input an over voltage to the AC input terminals 1. 2. 3. 4. Input the ACV power (90 to 260 ACV) to T1, T2. Connect the "Control Relay" output from T3, T4. Connect the "Alarm Relay" output from T5, T6. 3) Connect the proximity or photo sensor to the input terminal T8, T9, T10. T8 is DC 12 V power supply terminal. T9 is the ground ( - ) terminal. T10 is the pulse input terminal. 4 461960 V1.1 8/07 Operation RPM measurement 1. 2. 3. 4. Apply power to the meter. Press the “Function Button" once until the "RPM” and the "PV" indicators are on. The display will indicate the RPM value. The RPM value equals : Total input signal (pulse) per min. Number of pulses per revolution Example: If the total signal (pulse) input per minute is 5,124, the number of pulses per revolution is set to 1, the RPM value will be; 5,124/1 = 5,124 Surface speed ( m/min., ft/min. ) measurement 1. 2. 3. 4. 5. Apply power to the meter Press the "Function” button once until the "m/min” indicator is on. The display will show the m/min. value. Press the "Function” button once until the "ft/min” indicator is on. The display will show the ft/min. value. Under the surface speed measurement, the "PV” indicator will also light. To calculate m/min: Total input signal ( pulse ) per min. x roller diameter ( cm ) x 3.14 Number of pulses per revolution ÷ 100 Example: If the total input signal (pulse) per minute is 501, the number of pulses per revolution is set to 1, the roller diameter is 10 cm the m/min. value will be; 501/1 x 10 x 3.14/100 = 157.3 6. To calculate ft/min: Total input signal ( pulse ) per min. x roller diameter ( cm ) x 3.14 Number of pulses per revolution ÷ 30.48 Example: If the total input signal (pulse) per minute is 501, the number of pulses per revolution is set to 1, the roller diameter is 10 cm the ft/min. value will be; 501/1 x 10 x 3.14/30.48 = 516.1 5 461960 V1.1 8/07 1st layer setting procedures CtSP LoLt HILt Control value setting Low limit value setting High limit value setting Control Value Setting 1. 2. Press the "Set” button" once, the display will show " CtSP ", the meter is now ready for the " Control value " setting. Use the "▼” button and the "▲” to adjust the desired "Control value". Note: When adjusting the value, the "SV” indicator will light. Low Limit Value Setting 1. 2. Press the "Set” button" twice, the display will show " LoLt ", the meter is now ready for the " Low Limit value " setting. Use the "▼” button and the "▲” to adjust the desired "Low limit value ". Note: When adjusting the value, the "SV” indicator will light. High Limit Value Setting 1. 2. After setting the "Low Limit" value, press the "Set” button twice, the display will show "HILt", the meter is now ready for the humidity "High Limit" value setting. Use the "▼” button and the "▲” to adjust the desired "High limit value ". Note: When adjusting the value, the "SV” indicator will light. 1st layer setting considerations; 1. Under the normal display, if the "Function” button is set to the "RPM function" and the "RPM” indicator is on, then the 1st layer setting procedures will ready for the "RPM" function. Under the normal display, if the " Function” button is set to the "m/min. function", and the "m/mi” indicator is on, then the 1st layer setting procedures will ready for "m/min." function. 3) Under the normal display, if the "Function” button is set to the "ft/min. function" and the "ft/min” indicator " is on, then the 1st layer setting procedures will ready for "ft/min." function. 2. 3. 6 461960 V1.1 8/07 2nd layer setting procedures PULS dIA CtHy ALHy Pulse no. per revolution setting Roller diameter value setting Control Hysteresis value setting Alarm Hysteresis value setting Pulse no. per revolution setting 1. 2. Press the "Set” button continuously for at least two seconds, the display will show "PULS", now the meter is ready for the "Pulse no. per revolution" setting. Use the "▼” button and the "▲” button to adjust the desired "Pulse no. per revolution". Note: When adjusting the value, the "SV” indicator will light. Roller diameter value setting 1. 2. After setting the "Pulse no. per revolution", press the " Set” button twice, the display will show dIA ", now the meter is ready for the "Roller diameter value" setting. Use the "▼” button and the "▲” button to adjust the "Roller diameter value" in the unit of cm. Note: When adjusting the value, the "SV” indicator will light. Control Hysteresis value setting 1. 2. After setting the "Roller diameter value", press the "Set” button twice, the display will show “CtHy", now the meter is ready for the "Control Hysteresis value" setting. Use the "▼” button and the "▲” button to adjust the desired Hysteresis value". Note: When adjusting the value, the "SV” indicator will light. Example: Control value : 500, Control Hysteresis value : 5 The state of the control relay will stay On for measured values up to 500. The control relay will turn Off when the measured value goes down to 495. 7 461960 V1.1 8/07 Alarm Hysteresis value setting 1. After selecting the "Control Hysteresis value" , press the "Set” button twice, the display will show " ALHy ", the meter is now ready for the "Alarm Hysteresis” value setting. Use the "▼” button and the "▲” button to adjust the desired Alarm Hysteresis value. 2. Note: When adjusting the value, the "SV” indicator will light. Example : High limit value : 100, Low limit value : 20, Alarm Hysteresis value : 5 1. 2. The alarm relay will be On when measuring value up to 100. The alarm relay will turn Off again when measuring value down to 95. The alarm relay will be On when measuring value down to 20. The alarm relay will turn Off when measuring value up to 25. SYSTEM RESET Power on the meter. Use two fingers to press the "Set” button and "Function” button continuously for more than 5 seconds until the display show the text "rSt". Release the buttons. "rSt" will flash 2 times and the display will then to the normal screen. The meter system will be reset, all the calibration data will be cleared and the meter's internal functions will return to the default values. 8 461960 V1.1 8/07 Specifications General Specifications Display Unit 4 digits red LED, digit size : 14 mm. RPM RPM m/min ( meter per min. ) Surface speed ft/min ( feet per min. ) Custom chip of microprocessor LSI circuit. Approx. 1 second. * Input : one pulse per revolution, ≥ 60 RPM Two relays: Relay 1; Control relay, Relay 2; Alarm relay Max Load: 0.5 ACA/250 ACV 0.5 DCA/24 DCV Note: Do not apply a load current that exceeds 0.5A. Large currents will damage the relay and also void the warranty. Control value setting. Alarm high limit value setting. Alarm low limit value setting. Pulse no. of each revolution. Roller diameter value setting. Hysteresis value setting. * Setting for RPM, m/min., ft/min. Pulse, Quartz crystal DC 12 V, 50 mA max. RS 232 PC serial interface. 32 to 122°F (0 to 50 °C). Less than 80% R.H. 90 to 260 ACV, 50/60 Hz. Approx. 4.7 VA/AC 110V. Approx. 5.3 VA/AC 220V. 384 g/ 0.84 LB. DIN size : 96 x 48 mm. Depth : 110 mm. Proximity sensor, 461955. * Photo sensor, 461957. Data Acquisition software, 407001A Circuit Sampling Time Relay Output Setting Value Input Signal Time base Sensor Power Supply Data Output Operating Temperature Operating Humidity Power Supply Power Consumption Weight Dimension Optional Accessories Electrical Specifications (23±5 °C) Range Photo Tachometer : 10 to 99,999 RPM Surface Speed ( m/min. ) :0.05 to 9,999 m/min. Surface Speed ( ft/min. ) :0.2 to 32,805 ft/min. Accuracy ± ( 0.1 % + 1 digit ). Resolution RPM 0.1 RPM < 1,000 RPM 1 RPM 1,000 to 9,999 RPM 10 RPM 10,000 to 99,999 RPM m/min. 0.01 m/min.