Uni-Trend UT371 tachometer
Contents
1. 9 oe Model UT371 372 OPERATING MANUAL Number Meaning Unit of Tachometer Unit of Counts Time The battery is low Indicator of Sleep Mode Measurement of RPM and Counts Data Hold is on Display of Maximum reading Display of Minimum reading Display of Average reading USB is on Ia lale la Jo frm ja Display of Measurement reading 12 Model UT371 372 OPERATING MANUAL Measurement Operation A Warning Toreserve battery the USB feature will be automatically off when the Meter is restarted The other setting remains unchanged The Time will be off after the HOLD feature is enabled The time will be on again after existing HOLD mode A RPM Measurement see figure 3 A Warning Do not point laser directly at eye When carrying out measurement the distance must be more than 50mm To avoid hurt yourself or damage the meter do not let speedy rotary object to touch the Meter 13 Model UT371 372 OPERATING MANUAL To carry out RPM measuremnet follow the following procedure 1 Apply a piece of reflecting tape to the object PA under test y 2 Position the Meter a flat place Hold the Meter 50 200mm from the Tachometer light source to the object under test 3 Press ON OFF button the Meter is default to enter the RPM measurement mode Point the Tachometer li2. 5 Then press R C button to select Counts mode 6 The object under count passes through between the Meter and the outside light source the Meter accumulates the counts and displays quantity Note 1 Under the count mode when the quantity is greater than 99999 RPM the Meter displays OL and hold the data 2 Press M M A button zeroing the Counts 3 Press ON OFF to re start Counting 16 Figure 5 Model UT371 372 OPERATING MANUAL C Data Transferring and USB UT372 only see figure 6 Connect the USB interface cable the Meter and the computer as per the figure 6 Figure 6 17 Model UT371 372 OPERATING MANUAL Specifications A General Specifications Display 5 digits LCD display Maximum display 99999 Overloading Display OL Battery Deficiency Display E4 Sampling Rate 5 mini second to 255 mini seconds adjustable Transducer Tyype Photo Diode and Laser Measurement Distance 50mm 200mm Drop Test one meter Power 4pcs x 1 5V batteries AA Dimensions 184 x 56 x 34mm Weight Approximate 100g excluding battery Model UT371 372 OPERATING MANUAL B Environmental Requirements For indoor use only Altitude 2000m Temperature and humidity D Operating 0 C 30 C lt 85 R H 30 C 40 C lt 75 R H 40 C 50 C lt 45 R H Storage 20 C 60 C lt 85 R H Safety Complian
3. LINI T Model UT371 372 OPERATING MANUAL Model UT371 372 OPERATING MANUAL TABLE OF CONTENTS TITLE PAGE Overview ah ee eS 3 Unpacking Inspection 3 Safety Information e Mean 4 Rules For Safe Operation 5 6 7 8 International Electrical Symbols The Meter Structure _ _ _ __ LL LLL Functional Buttons s s SEU aS Display Symbols 11 Measurement Operation 18 A RPM Measurement 13 B Counts 5 15 Data Transternng and USB ee 17 Model UT371 372 OPERATING MANUAL TABLE OF CONTENTS TITLE PAGE Specifications E 18 A General Specifications 18 B Environmental Requirements 19 Accuracy Specifications x 20 A RPM 20 B Counts 20 Maintenance 21 A General Service 21 B Replacing the Battery 22 Model UT371 372 OPERATING MANUAL Overview This Operating Manual covers information on safety and cautions Please read the relevant information c
4. arefully and observe all the Warnings and Notes strictly Model UT371 and UT372 is a stable safe and reliable digital non contact Tachometer This Tachometer can measure RPM and counts RPM range is 10 99999 while counts range is 0 99999 Unpacking Inspection Open the package case and take out the Meter Check the following items carefully to see any missing or damaged part Item Description Qty 1 English Operating Manual 1 piece 2 Reflecting Tape 10 pieces 3 USB Interface Cable UT372 only 1piece 4 Software UT372 only 1 piece 5 1 5V Battery LR6 4 pieces Model UT371 372 OPERATING MANUAL In the event you find any missing or damage please contact your dealer immediately Safety Information This Meter complies with the standards IEC61010 031 IEC61326 in pollution degree 2 Use the Meter only as specified in this operating manual otherwise the protection provided by the Meter may be impaired In this manual a Warning identifies conditions and actions that pose hazards to the user or may damage the Meter or the equipment under test A Note identifies the information that user should pay attention to International electrical symbols used on the Meter and in this Operating Manual are explained on page 6 4 Model UT371 372 OPERATING MANUAL Rules For Safe Operation Before using the Meter inspect the case Do not use the Meter if it is damaged or the case or p
5. art of the case is removed Look for cracks or missing plastic Do not use or store the Meter in an environment of high temperature humidity explosive inflammable and strong magnetic field The performance of the Meter may deteriorate after dampened Do not point laser directly at eye e Replace the battery as soon as the battery indicator EH appears When the battery is between 4 5V 4 8V the battery indicator amp appears When the battery is between 4 3V 4 5V battery indicator fi blinking the Meter will be turned off after 1 minute When opening the battery door must make sure the Meter is power off When servicing the Meter use only the same model number or identical electrical specifications replacement parts The internal circuit of the Meter shall not be altered at will to avoid damage of the Meter and any accident Model UT371 372 OPERATING MANUAL Soft cloth and mild detergent should be used to clean the surface of the Meter when servicing No abrasive and solvent should be used to prevent the surface of the Meter from corrosion damage and accident Turn the Meter off when it is not in use and take out the battery when not using for a long time Constantly check the battery as it may leak when it has been using for some time replace the battery as soon as leaking appears A leaking battery will damage the Meter International Electrical Symbols A Warning Refer to the Op
6. ces IEC61010 031 IEC61326 IEC 61010 1 pollution degree 2 Certification c 19 Accurate Specifications Accuracy reading b digits guarantee for 1 year Operating temperature 23 C 5 C Operating humidity 8096 RH Temperature Coefficient 0 1 x accuracy C Model UT371 372 OPERATING MANUAL A RPM Range Resolution Accuracy 10 99 999 r min 0 001 r min 100 999 99 r min 0 01 r min 0 04 2 1000 9999 9 r min 0 1 r min 10000 99999 r min 1 r min B Counts Range Resolution Maximum input frequency 0 99999 1 digits 10kHz Pulse Width 5 20 Model UT371 372 OPERATING MANUAL MAINTENANCE This section provides basic maintenance information including battery replacement instruction Warning Do not attempt to repair or service your Meter unless you are qualified to do so and have the relevant calibration performance test and service information Do not attempt to open the back housing to avoid damaging to the Meter or affecting accuracy General Service Periodically wipe the case with a damp cloth and mild detergent Do not use abrasives or solvents Turn the Meter power off when it is not in use Take out the battery when it is not using for a long time Do not use or store the Meter in a place of humidity high temperature explosive inflammable and strong magnetic field 21 Model UT371 372 OPERATING MANUAL B Repla
7. cing the Battery see figure 7 1 Press ON OFF to turn the Meter off 2 Turn the Meter s front case down 3 Remove the screw from the battery door and AS Pa separate the battery door from the case bottom X 4 Take out the old battery and replace with 4x a 1 5V battery AA 5 Rejoin the case bottom the battery compartment and reinstall the screw Figure 7 22 Model UT371 372 OPERATING MANUAL END This operating manual is subject to change without notice 23 Model UT371 372 OPERATING MANUAL Copyright 2007 Uni Trend Group Limited All rights reserved Manufacturer Uni Trend Technology Dongguan Limited Dong Fang Da Dao Bei Shan Dong Fang Industrial Development District Hu Men Town Dongguan City Guang Dong Province China Postal Code 523 925 Headquarters Uni Trend Group Limited Rm901 9 F Nanyang Plaza 57 Hung To Road Kwun Tong Kowloon Hong Kong Tel 852 2950 9168 Fax 852 2950 9303 Email info uni trend com http www uni trend com 24
8. ction In the COUNT mode pressing the button will be clear Model UT371 372 OPERATING MANUAL Setup A USB setup Press R C button to select USB feature after turning on the Meter Then press M M A button to setup 0 or 1 0 means turn the USB off 1 means enable the USB feature B LED setup Press R C button to select LED feature after turning on the Meter Then press M M A button to setup 0 or 1 0 means turn the LED laser off 1 means enable the LED laser feature C SR sampling rate setup Press R C button to select SR feature after turning on the Meter Then press M M A button to setup 005 255 Press and hold M M A button to access quick setting D AOFF setup Press R C button to select AOFF feature after turning on the Meter Then press M M A button to setup 0 or 1 0 is disable auto power off feature 1 means enable auto power off feature After enable auto power off feature the Meter will be auto power off after ten minutes 9 Model UT371 372 OPERATING MANUAL if you do not press any button for 10 minutes You could press ON OFF button to turn on the Meter again after the Meter is off E CLK setup Press R C button to select CLK feature after turning on the Meter Then press M M A button to setup 0 or 1 0 is hours and minutes format 1 is minutes and seconds format LINI T Model UT371 372 OPERATING MANUAL Display Symbols see figure 2 BBB BH noo D Figure 2
9. erating Manual ES Deficiency of Built In Battery Ce Conforms to Standards of European Union Model UT371 372 OPERATING MANUAL The Meter Structure see figure 1 D Tachometer Light Source LCD Display 3 USB Port UT372 only Housing B Functional Buttons Figure 1 Model UT371 372 OPERATING MANUAL Functional Buttons Below table indicated for information about the functional button operations Button Operation Performed ON OFF Press once to turn the meter on Press and hold for 1 minute to turn it off When measuring RPM and Counts press once to enter the Hold mode Press it again to exit hold mode R C When measuring RPM and Counts press it to toggle between RPM and Counts feature Press and hold for 1 minute to enter setup feature the LCD displays USB After that each press to step through LED SR AOFF CLK exiting setup feature to enter RPM or Count You could press ON OFF button to exit setup mode and returning to normal measurement mode at any time M M A Press this button to choose maximum reading minimum reading average reading zerong Tune Under Tach measurement mode press M M A button to select MAX MIN AVE and normal value measurement After entering USB LED SR AOFF CLK mode press this button to setup 0 or 1 and time In the RPM or COUNT mode press and hold the button for more than second the relative time will be clear and execute HOLD fun
10. ght source to reflective tape the vertical angle of the reflecting tape is not greater than 30 4 The LCD displays the RPM reading an Note 1 When measuring RPM the LCD displays 0 0000 if there is no signal for continuous 7 seconds 2 When the RPM reading is greater than 99999 the LCD displays OL Figure 3 14 Model UT371 372 OPERATING MANUAL B Counts Self lighted Counts see figure 4 1 Position the Meter on a flat place Hold the Meter 50 200mm and at the vertical angel not greater than 30 from the Tachometer light source to the object under test 2 Press the ON OFF button 3 Press the R C button to select Count mode 4 Point he Tachometer light source to the object under count 5 The LED scans the object under count the Meter accumulates the counts and displays the quantity Note 1 The object under count must be reflective otherwise Counts feature cannot be used Figure 4 15 Model UT371 372 OPERATING MANUAL Receiving Light Source Outside see figure 5 1 Position the Meter on a flat place Hold the Meter 50 200mm and at the vertical angel not greater than AA 30 from the Tachometer light source to the object under i test 4 3 2 1 2 Set up the Meter object under counts and outside light source as figure 5 3 Press ON OFF button 4 Turn the LED off refer to page 9 point
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