Extech Instruments K.J.E.T. 422324 Instruction Manual
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Extech Instruments K.J.E.T. 422324 Instruction Manual

Extech Instruments K.J.E.T. 422324 Instruction Manual

Printing thermometer
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TYPE - K.J.E.T.
PRINTING THERMOMETER
Model 422324
INSTRUCTION MANUAL

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Summary of Contents for Extech Instruments K.J.E.T. 422324

  • Page 1 TYPE - K.J.E.T. PRINTING THERMOMETER Model 422324 INSTRUCTION MANUAL...

  • Page 2: Table Of Contents

    CONTENTS Title Page SAFETY INFORMATION ............1 II. SPECIFICATIONS ..............2 2-1 General Information............2 2-2 Electrical Specifications ..........4 IV. PRECAUTIONS AND PREPARATIONS FOR MEASUREMENT 10 V. OPERATIONAL GUIDE ............11 INTERVAL PRINTING SETUP........18 VII. BATTERY REPLACEMENT ........... 19 VIII. Calibration and Repair Services ........

  • Page 3: Safety Information

    SAFETY INFORMATION Read the following safety information carefully before attempting to operate or service the meter. Use the meter only as specified in this manual; otherwise, the protection provided by the meter may be impaired. Use caution when working with voltages above 60V or 24V RMS.

  • Page 4: Specifications

    II. SPECIFICATIONS 2-1 General Information Display: 4-1/2 digit LCD LCD illustration (see below) Fig-1 T1-T2 , T2 , T1 Reflects the selected temperature display configuration MAX, MIN, AVG Maximum, Minimum or Average reading display Avg = ½ (Previous reading + Current reading) K , J , E , T Thermocouple types HI ALARM...
  • Page 5 or - Over Range appears. Low battery indicator Sampling Rate 1 reading per second (approx.) Power Six 1.5V ‘AAA’ cells or 9V (500mA) adaptor Battery Life (typ.) 30 hours (interval print set to 60 mins. & beeper off) 70 hours (no printing or beeper) Input protection 60Vdc/24Vrms Operating Temperature and Humidity...

  • Page 6: Electrical Specifications

    Printer Thermo-printing type with 16 characters per line using 38mm width plain thermo-paper. Instant printing: Print on demand (button press) Interval printing: Print at desired interval from 00:00:03 to 23:59:59 2-2 Electrical Specifications ± 5 ℃ ℃ Accuracy (23 , below 80%RH) ±( 0.1% rdg + 0.8℃...
  • Page 7 III. Description of Thermometer Fig-2 1. LCD Displays readings, units, symbols, and decimal points 2. POWER Powers the unit on/off 3. UNIT ( ℃ / ℉ ) Selects the temperature units...
  • Page 8 4. PRINT Prints current measurement (print format shown below): 1 0 : 5 1 : 1 2 1 1 - 0 2 LINE 1 K - 0 0 2 3 . 0 LINE 2 Line 1: (Time) Hour: minute: second, month- day Line 2: Measurement channel, thermocouple type, temp., and unit.
  • Page 9 9. High / Low Alarm output connector Fig-4 Pin 1: GND ( external supply low voltage ) Pin 2: VCC ( external supply high voltage ) Pin 3: SYNC ( external trigger signal ) Pin4 (High Alarm) and pin5 (Low Alarm) signals must be synchronized with pin3.
  • Page 10 Note: voltage VCC to GND is 16V Maximum, 5V Minimum. GND ≦ SYNC ≦ VCC...
  • Page 11 Result : Hi Alarm output reading approx 5V Lo Alarm output reading approx 5V 10. T measurements : Press to select the display method, T 11. MENU ： Press to enter and step through the set-up mode. (Hold down the key to scroll quickly).

  • Page 12: Precautions And Preparations For Measurement

    IV. PRECAUTIONS AND PREPARATIONS FOR MEASUREMENT 1. Before use, examine the device to ensure that no shipping damage has occurred. 2. Save all packing materials. 3. Ensure that the batteries are correctly placed in the case or that the 9V adaptor is correctly connected. 4.

  • Page 13: Operational Guide

    OPERATIONAL GUIDE A. This meter can be operated with batteries or 9V Adaptor, If using batteries, remove the rear cover and install the batteries (observe polarity). If using the 9V Adaptor, ensure that is connected firmly and correctly. Select the desired temperature probe for your application and insert it into the tempture probe socket.
  • Page 14 ℃ / ℉ 3. ALARM UNIT ( Fig-7 4. FIRST THREE DIGITS IN HI ALARM (-399 ～ 399): Fig-8 5. LAST TWO DIGITS IN HI ALARM (00 ～ 99):...
  • Page 15 HOUR OF INTERVAL PRINTING (00 ～ 23): Fig-12 9. MINUTE OF INTERVAL PRINTING (00 ～ 59): Fig-13 10. SECOND OF INTERVAL PRINTING (00 ～ 59): Fig-14 11. HOUR OF START INTERVAL PRINTING TIME (00 ～ 23):...
  • Page 16 13. HOUR OF STOP INTERVAL PRINTING TIME (00 ～ 23) : Fig-17 14. MINUTE OF STOP INTERVAL PRINTING TIME (00 ～ 59): Fig-18 15. FIRST TWO DIGITS OF CALENDAR YEAR (19 ～ 29): Fig-19 16. LAST TWO DIGITS OF CALENDAR YEAR (00 ～ 99): Fig-20 17.
  • Page 17 18. DAY DIGITS OF CALENDAR MONTH-DAY (01 ～ 31): Fig-22 19. HOUR DIGITS OF CALENDAR HOUR-MINUTE (00 ～ 23): Fig-23 20. MINUTE DIGITS OF CALENDAR HOUR-MINUTE (00 ～ 59): Fig-24 21. SECOND DIGITS OF CALENDAR MINUTE-SECOND (00 ～ 59) :...
  • Page 18 If interval printing is enabled in the programming mode, the printer will print as in the examples below: 11 ： 54 ： 00 11-02 INTV ： 00 ： 00 ： 10 First two lines: Line 1: hour:minute:second month-day (start printing time) Line 2: interval printing time hour:minute:second Following two lines: Line 1: hour:minute:second...
  • Page 19 If the print button is held for 2 seconds, the printer will print as follows: 12 ： 58 ： 18 11-02 INTV ： 00 ： 00 ： 10 12 ： 58 ： 28 11-02 K – 0039.5 ℃ 12 ： 58 ： 38 11-02 K –...

  • Page 20: Interval Printing Setup

    VI. INTERVAL PRINTING SETUP 1. SETUP INTERVAL PRINT (with 24 hour maximum interval limit). Enter the Menu mode by pressing the MENU button. Enable interval printing as described on page 11 (fig-5) using the buttons (01 is enable). Use the buttons to scroll through the available editing parameters as described on page 13 (fig-12).

  • Page 21: Battery Replacement

    For periodic calibration, NIST certi cation on most products or repair of any Extech product, call customer service for details on services available. Extech recommends that calibration be performed on an annual basis to ensure calibration integrity.

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