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Model UT371/372

OPERATING MANUAL

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Summary of Contents for UT371

Page 1: ...Model UT371 372 OPERATING MANUAL ...

Page 2: ...Unpacking Inspection Safety Information Rules For Safe Operation International Electrical Symbols The Meter Structure Functional Buttons Setup Display Symbols Measurement Operation A RPM Measurement B Counts C Data Transferring and USB Model UT371 372 OPERATING MANUAL 1 ...

Page 3: ...AGE 18 18 19 20 20 20 21 21 22 Specifications A General Specifications B Environmental Requirements Accuracy Specifications A RPM B Counts Maintenance A General Service B Replacing the Battery Model UT371 372 OPERATING MANUAL 2 ...

Page 4: ...carefully to see any missing or damaged part Description English Operating Manual Reflecting Tape USB Interface Cable UT372 only Software UT372 only 1 5V Battery LR6 Overview This Operating Manual covers information on safety and cautions Please read the relevant information carefully and observe all the Warnings and Notes strictly Item 1 2 3 4 5 Qty 1 piece 10 pieces 1piece 1 piece 4 pieces Unpac...

Page 5: ...herwise 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 Safety Information Model U...

Page 6: ...ser directly at eye Replace the battery as soon as the battery indicator appears When the battery is between 4 5V 4 8V the battery indicator appears When the battery is between 4 3V 4 5V battery indicator 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 elect...

Page 7: ... 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 Warning Refer to the Operating Manual Deficiency of Built In Battery Conforms to Standards of European Union Model UT371...

Page 8: ...Figure 1 The Meter Structure see figure 1 Tachometer Light Source LCD Display USB Port UT372 only Housing Functional Buttons Model UT371 372 OPERATING MANUAL 7 ...

Page 9: ...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 l Press this button to choose maximum reading minimum reading average reading zerong Tune l 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 ...

Page 10: ...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 ...

Page 11: ...utton 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 Model UT371 372 OPERATING MANUAL 10 ...

Page 12: ...Display Symbols see figure 2 Figure 2 Model UT371 372 OPERATING MANUAL 11 ...

Page 13: ...e 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 Display of Measurement reading l Number Meaning Model UT371 372 OPERATING MANUAL 12 ...

Page 14: ... HOLD feature is enabled The time will be on again after existing HOLD mode l l A RPM Measurement see figure 3 l Do not point laser directly at eye l When carrying out measurement the distance must be more than 50mm l To avoid hurt yourself or damage to the meter do not let speedy rotary object to touch the Meter Measurement Operation Model UT371 372 OPERATING MANUAL 13 ...

Page 15: ...r test Press ON OFF button the Meter is default to enter the RPM measurement mode Point the Tachometer light source to reflective tape the vertical angle of the reflecting tape is not greater than 30 The LCD displays the RPM reading Note When measuring RPM the LCD displays 0 0000 if there is no signal for continuous 7 seconds When the RPM reading is greater than 99999 the LCD displays OL 1 2 3 4 1...

Page 16: ...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 Model UT371 372 OPERATING MANUAL 15 ...

Page 17: ...ure 5 Press ON OFF button Turn the LED off refer to page 9 point B Then press R C button to select Counts mode The object under count passes through between the Meter and the outside light source the Meter accumulates the counts and displays quantity Note Under the count mode when the quantity is greater than 99999 RPM the Meter displays OL and hold the data Press M M A button zeroing the Counts P...

Page 18: ...Figure 6 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 Model UT371 372 OPERATING MANUAL 17 ...

Page 19: ...y Display l Sampling Rate 5 mini second to 255 mini seconds adjustable l Transducer Tyype Photo Diode and Laser l Measurement Distance 50mm 200mm l Drop Test one meter l Power 4pcs x 1 5V batteries AA l Dimensions 184 x 56 x 34mm l Weight Approximate 100g excluding battery Specifications Model UT371 372 OPERATING MANUAL 18 ...

Page 20: ...2000m l Temperature and humidity Ø Operating 0 o C 30 o C 85 R H 30 o C 40 o C 75 R H 40 o C 50 o C 45 R H Ø Storage 20 o C 60 o C 85 R H l Safety Compliances IEC61010 031 IEC61326 IEC 61010 1 pollution degree 2 l Certification Model UT371 372 OPERATING MANUAL 19 ...

Page 21: ...ity 80 RH Temperature Coefficient 0 1 x accuracy o C Range Resolution Accuracy 10 99 999 r min 100 999 99 r min 1000 9999 9 r min 10000 99999 r min 0 001 r min 0 01 r min 0 1 r min 1 r min 0 04 2 A RPM B Counts Range Resolution Maximum input frequency 0 99999 1 digits 10kHz Pulse Width 5 Model UT371 372 OPERATING MANUAL 20 ...

Page 22: ...o not attempt to open the back housing to avoid damaging to the Meter or affecting accuracy A General Service l Periodically wipe the case with a damp cloth and mild detergent Do not use abrasives or solvents l Turn the Meter power off when it is not in use l Take out the battery when it is not using for a long time l Do not use or store the Meter in a place of humidity high temperature explosive ...

Page 23: ...e Meter s front case down 3 Remove the screw from the battery door and separate the battery door from the case bottom 4 Take out the old battery and replace with 4 x 1 5V battery AA 5 Rejoin the case bottom and the battery compartment and reinstall the screw Model UT371 372 OPERATING MANUAL 22 ...

Page 24: ... END This operating manual is subject to change without notice Model UT371 372 OPERATING MANUAL 23 ...

Page 25: ...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 Model UT371 372 OPERATING MANUAL 24 ...

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