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Data Logger

  Instruction Manual 

 

 

4.7 Recording Interval Setup : 

1: press and hold “MAX MIN” button and then power on the meter: 
 
 
2: press  “HOLD"(INTV) 

 
 

3: press "REC" 

 or "

°C/°F" 

 to increase or decrease number, 

press “HOLD" (INTV) to adjust next item, then press “HOLD” (INTV)   
to finish. If you want abort during a setup process, press power 
button to cancel.

 

4.8 Relative Operation: 

When one press the “

REL

” button, the meter will memorize the present reading and the difference 

between the new reading and the memorized data will be shown on the display. Press the “

REL

” 

button again to exit the Relative operation. When the meter is under relative operation, 

“ °C/°F ” 

button is disabled. (when you press 

“ °C/°F ” 

button in relative mode, there will be two continuous 

beep) 

4.9 MAX/MIN Operation: 

When one press the "MAX MIN" button the meter will enter the MAX/MIN mode. Under this mode 
the maximum value, minimum value is kept in the memory simultaneously and updated with every 
new data. 
When the MAX symbol is display, the Maximum is shown on the display. 
Press "MAX MIN" again, then the MIN symbol is on the display and also the minimum reading. 
Press "MAX MIN" again, MAX, and MIN will blink together. This means that all these data is 
updated in the memory and the reading is the present temperature. 
One may press "MAX MIN" to circulate the display mode among these options.   
When the meter is under "MAX MIN" operation, “

REL

” and 

“ °C/°F ” 

button are disabled.(when 

you press "

REL

” and 

“ °C/°F ” 

button in "MAX MIN" mode, there will be two continuous beep) 

To exit the MAX/MIN mode, one may press and hold "MAX MIN" for two seconds. 

4.10 Auto Power Off: 

By default, when the meter is powered on, it is under auto power off mode. The meter will power 
itself off after 30 minutes if no key operation and no RS232 communication and no recording.  
combination at power on can disable auto power off.   
One may press and hold “

HOLD

” button and then power on the meter and there will be two 

successive beeps to indicate that auto power off is disabled and the 

         

will not show up.

 

4.11 Low Battery Condition   

When the battery voltage is under proper operation requirement, the            symbol will show on the 
LCD and the battery need to be replaced with new one. 

4.12 Calibration Point: 

 

input Adjust 

VR 

tolerance 

0 °C 

VR1 

± 0.1 °C 

190 °C 

VR2 

± 0.1 °C 

1000 °C 

VR3 

± 1 °C 

1900 °F 

VR4 

± 1 °F 

 

P.S 

Normally, performing offset Calibration with thermal
stabled ice water through VR1 will give a very good
calibration result. 

 

Summary of Contents for 305

Page 1: ...305 Datalogger RS 232 REC POWER UP OPTIONS RANGE 200 C REL HOLD SETUP CLOCK REC INTV C F 328 F 1370 C 2498 F ...

Page 2: ... the Thermocouples 3 4 3 Selecting the Temperature Scale 3 4 4 Data Hold Operation 3 4 5 DataLogger 3 4 6 Clock Setup 3 4 7 Recording Interval Setup 4 4 8 Relative Operation 4 4 9 MAX MIN Operation 4 4 10 Auto Power Off 4 4 11 Low Battery Condition 4 4 12 Calibration Point 4 4 13 Digital Output 5 V Setup ThermoLog Thermo DataLogger RS232 interface software 7 ...

Page 3: ... 400 C 0 5 reading 1 C 400 C 1370 C 0 2 reading 1 C 328 F 200 F 0 5 reading 2 F 200 F 200 F 0 2 reading 2 F 200 F 2498 F 0 3 reading 2 F Note The basic accuracy Specification does not include the error of the probe Please refer to the probe accuracy specification for additional details Sample Rate 2 5 times per second Dimension 184 64 30mm Weight 210g Approx Accessory K Type Bead Probe Battery Car...

Page 4: ...and second y year The Battery is not sufficient for proper operation REC This indicates that the tester is recording If it blinks it indicates the memory is full Button Location K type temperature sensor input connector LCD display ON OFF button Relative readout button Record button MAX MIN function control button HOLD button C F control button Offset calibration screw Digital output connector 11 ...

Page 5: ...eld data is no longer needed one may release the data hold operation by pressing HOLD button again When the meter is under Data Hold operation the REL max min and C F button are disabled when you press REL C F and max min button in HOLD mode there will be two continuous beeps To exit the MAX MIN mode one may press and hold MAX MIN button for two seconds 4 5 DataLogger When one press the REC button...

Page 6: ...Press MAX MIN again MAX and MIN will blink together This means that all these data is updated in the memory and the reading is the present temperature One may press MAX MIN to circulate the display mode among these options When the meter is under MAX MIN operation REL and C F button are disabled when you press REL and C F button in MAX MIN mode there will be two continuous beep To exit the MAX MIN...

Page 7: ...ll return 3 0 5 ASCII 13 Command U Return 32768 bytes Command P Instead of returning all 32768 bytes it only return recorded data Command H Equivalent to one pushing on the HOLD button and no message is returned Command M Equivalent to one pushing on the MAX MIN button and no message is returned Command N Equivalent to one pushing and hold the MAX MIN button for two seconds to exit MAX MIN mode Co...

Page 8: ...full bit7 1 Auto power off enabled 0 Auto power off disabled 4th BYTE first two BCD code of main window value 5th BYTE last two BCD code of main window value 6th BYTE BCD code of month 7th BYTE BCD code of day 8th BYTE BCD code of hours 9th BYTE BCD code of minute 10th BYTE end byte it value is 3 1 nd and 10 th are used to check frame error Appendix Thermo couple probe specification Model Range To...

Page 9: ...lect Run 4 Type A SETUP and choose OK then it will copy ThermoLogg exe executable file and help file to your hard disk default is c program files ThermoLog For other operation instruction please refer to the on line help while executing ThermoLog Main Menu Link Test Open Link Test window to search for thermometer connected to PC When you start the THERMOLINK this window will display first and sear...

Page 10: ...r window the present data from the thermometer will be listed in a scrolling table These data can be stored as a file or the table can be copy to other software such as EXCEL for further analysis Graph Open Real Time Graph window to show the present data in graph Exit Terminates THERMOLOG program Tray Icon When THERMOLOG is running there will be an icon displayed on the Windows Tray area see figur...

Page 11: ...4 F NO 415 Jung Jeng Rd 238 Shu Lin Chien Taipei Taiwan E Mail center centertek com http www centertek com 305 00 CENTER TECHNOLOGY CORP ...

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