Digi-Sense 20250-20 User Manual Download Page 6

6

Changing Setup Options 

Use the Setup mode to change offset, sample rate, time, clear data logging 

memory, and sleep mode settings. The thermometer stores the settings in 

its memory.

Option

Menu item

Settings

Offset 

T1, T2, IR, T3, T4

T1, T2, IR, T3, or T4 offset

Sample rate

rAt

Sampling of recording 

Time setting

tiE

Show the time or set the time

Clear data logging memory

CLR

Clear the memory operation

Sleep mode 

SLP

On (sleep mode on) or  

Off (sleep mode off)

Entering or Exiting Setup Mode

When the thermometer is in 

Setup

 mode, the display shows the 

SETUP

 

icon. Press and hold 

Setup

 button for five seconds to enter or exit the 

Setup mode.

Changing a Setup Option

1. Press 

 or 

Rec

/

 button scroll to the Setup option you want to change.

2. Press

 Enter

 button to indicate that you want to change this setting.

3.   Press 

 or 

Rec

/

 button until the setting you want to use appears on the 

display.

4. Press 

Enter

 button to store the new setting into memory. 

Note:

 Setup is disabled in the Max/Min/Avg and Recording modes.

Offset Function

The primary display shows the temperature plus the offset 

and the secondary display shows the offset. You can store 

individual offsets for T1, T2, IR, T3, and T4 (Fig. 1).

Using the Offset to Adjust for Probe Errors

Use the offset option in Setup mode to adjust the ther-

mometer’s readings to compensate for the errors of a  

specific thermocouple and IR temperature. The allowable 

adjustment range is ±9.0°F or ±5.0°C.
1. Plug the thermocouple into the input connector.
2.  Place the thermocouple in a known, stable temperature 

environment (such as an ice dry well calibrator).

3. Allow the readings to stabilize.
4.  In the Setup mode, change the offset until the primary reading matches 

the calibration temperature. (See “Changing Setup Options")

Fig. 1

Summary of Contents for 20250-20

Page 1: ...anual THE STANDARD IN PRECISION MEASUREMENT Professional Thermocouple Thermometer with Four Type K Inputs Data Logging and Optional Infrared Wand with NIST Traceable Calibration Model 20250 20 Enter R...

Page 2: ...contact your instrument supplier immediately 1 Meter 2 Four type K flexible probes 3 USB cable 4 Software 5 Carrying case 6 One 9 V battery 7 User manual 8 NIST traceable calibration report with data...

Page 3: ...4 2 LCD 3 Enter button 4 Up button 5 Rec button 6 C F K button 7 HOLD button 8 DIF T1 T2 T3 T4 button 9 Power on off button 10 MAX MIN button 11 Setup Backlight button 12 IR input Optional infrared wa...

Page 4: ...rared IR TEMP icon requires Optional IR wand sku number 20250 24 7 SETUP mode icon 8 Offset icon 9 Auto power off icon 10 Low battery icon 11 T2 or T4 temperature display 12 MAX MIN AVG icons 13 Secon...

Page 5: ...ton to turn on the backlight Press it again to turn off the backlight Press Setup Backlight button and hold for three seconds to enter or exit the Setup mode See Changing Setup Options 7 Press or Rec...

Page 6: ...t to change this setting 3 Press or Rec button until the setting you want to use appears on the display 4 Press Enter button to store the new setting into memory Note Setup is disabled in the Max Min...

Page 7: ...f no adjust ment is needed press Enter button to exit time setting 2 Set the time The adjust order is year month day hour minute Press C F K button until the value you wish to change is flashing 3 Pre...

Page 8: ...powered off Displaying Temperatures 1 Press C F K button to switch between Celsius C Fahrenheit F and Kelvin K temperature scales 2 Hold or attach the thermocouple s to the measurement location The te...

Page 9: ...with 0 sample points remaining the first value shown will be FULL rather than a number Or if you try to record the REC icon will flash five times and disappear At this point you are no longer able to...

Page 10: ...ta List tab to open the list of measurements recorded Select File icon from the menu bar and save data to desired location on your PC Note Data will be saved in an Excel format that will include all s...

Page 11: ...bove 14 F 10 C 11 F 6 C below 14 F 10 C Auto power off Unit shuts off automatically after 20 minutes to conserve battery life Operating temperature 32 to 122 F 0 to 50 C Storage temperature 14 to 122...

Page 12: ...ery Replacement When the battery power falls low the low battery icon will appear on the screen Replace the 9 V battery in the rear battery compartment by remov ing the cover Ensure that the cover is...

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