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6-2  To recall the stored value, follow these procedures.
A. Press the "MEMORY CALL BUTTON"(3-6 Fig. 1) once

to display the last reading.  The symbol " LA " will appear on
the display.  

B. Press the "MEMORY CALL BUTTON"(3-6 Fig. 1) once

again to display the maximum value.  The symbol " UP " will
appear on the display.  

C. Press the "MEMORY CALL BUTTON"(3-6 Fig. 1) once

more to display the maximum value.  The symbol " dn " will
appear on the display.  

7. BATTERY REPLACEMENT

(1) When the battery voltage drops below 4.5V dc, the symbol

 " LO " will appear on the display.  The battery should be
  replaced.

(2) Remove the screw retaining the battery compartment lid,

 and slide the cover away from the instrument. 
 Remove the battery.

(3) Install the new batteries ( 4 x 1.5 V AA/UM-3 ) and

  replace the cover.

8. PATENT & PATENT PENDING

This exclusive TACHOMETER already holds patent in

  USA - 4,823,080, 

  GERMANY - G9015492.4 G8708922.0,

  TAIWAN - 45478, 

6

DT-

2236

Summary of Contents for DT-2236

Page 1: ...DIGITAL PHOTO CONTACT TACHOMETER Model DT 2236 PLEASE READ THIS MANUAL CAREFULLY BEFORE OPERATION 3 Hagavish st Israel 58817 Tel 972 3 5595252 Fax 972 3 5594529 mrc mrclab com MRC 10 15 ...

Page 2: ... 3 FRONT PANEL DESCRIPTIONS 3 4 PHOTO TACHOMETER MEASURING PROCEDURE 4 5 CONTACT TACHOMETER MEASURING PROCEDURE 4 5 1 RPM Measurement 4 5 2 Surface Speed Measurement 5 6 MEMORY CALL BUTTON OPERATION 5 7 BATTERY REPLACEMENT 6 8 PATENT PATENT PENDING 6 ...

Page 3: ... exclusive one chip MICRO PROCESSOR LSI circuit and crystal time base to offer high accuracy measurement fast measuring time The instrument uses durable long lasting components enclosed in a strong light weight ABS plastic housing which assures maintenance free performance for many years The housing has been carefully shaped to fit comfortably in both hands 2 SPECIFICATIONS Display 5 digits 10mm 0...

Page 4: ...cho 1 sec over 6 RPM Photo Tacho 50 to 150 mm 2 to 6 inch typical max Detecting 300mm 12 inch depending upon ambient Distance light Range select Automation Time base Quartz crystal Circuit Exclusive one chip design microprocessor LSI circuit Battery 4 x 1 5V AA UM 3 battery Operation 0 50 蚓 32 122 蚌 Temperature Size 215 x 65 x 38 mm 8 5 x 2 6 x 1 5 inch Weight 300g 0 66 LB including battery Access...

Page 5: ... Fig 1 3 1 Reflective mark 3 2 Signal light beam 3 3 Monitor indicator 3 4 Display 3 5 Measure button 3 6 Memory call button 3 7 Function select switch 3 8 Rotating ring 3 9 Circumferential speed ring 3 10 Battery Compartment 3 ...

Page 6: ...e the MEASURE BUTTON 3 5 Fig 1 when the reading stabilizes about 2 seconds In order to obtain greater accuracy for measurement of less than 50 RPM use 2 or 3 pieces of reflective tape and then divide the reading with the number of pieces used to calculate the final figure 5 CONTACT TACHOMETER MEASURING PROCEDURE 5 1 RPM Measurement A Slide the FUNCTION SWITCH 3 7 Fig 1 to RPM CONTACT position B Pr...

Page 7: ...5 fig 1 and simply attaching surface speed test wheel to the detector Release The MEASURE BUTTON 3 5 Fig 1 When the reading stabilizes 6 MEMORY CALL BUTTON OPERATION 6 1 The minimum maximum and the last final readings are automatically stored during measurement These values can be recalled anytime by pressing the MEMORY CALL BUTTON 3 6 Fig 1 5 ...

Page 8: ...e to display the maximum value The symbol dn will appear on the display 7 BATTERY REPLACEMENT 1 When the battery voltage drops below 4 5V dc the symbol LO will appear on the display The battery should be replaced 2 Remove the screw retaining the battery compartment lid and slide the cover away from the instrument Remove the battery 3 Install the new batteries 4 x 1 5 V AA UM 3 and replace the cove...

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