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Summary of Contents for Digi-Sense 20250-92
- Page 1 User Manual Dual-Input Data Logging Thermometers with NIST-Traceable Calibration Thermocouple Meter, Type J/K/T Input Model 20250-92 Thermistor Meter Model 20250-94 RTD Meter Model 20250-96 THE STANDARD IN PRECISION MEASUREMENT...
- Page 2 Introduction The Digi-Sense Dual-Input Thermometers with Data Logging (20250-92, -94, -96) offer fast response and high accuracy. Advanced features include data logging, USB interface, relative time clock, offset compensation, temperature differential, data Hold, Max/Min/Avg readings, and auto power-off. The instrument is fully tested and calibrated to NIST-traceable standards.
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Page 3: Key Features
Key Features • Large backlit display shows any combination of T1, T2, T1–T2; plus Max, Min, and Avg readings • Relative time clock on Max/Min/Avg provides a time reference for major events • Electronic Offset function allows compensation of probe errors to maximize overall accuracy •... -
Page 4: Meter Description
Meter Description 8. CAL (offset/calibration) 1. Up () button button 2. Down () button 9. Power on/off button 3. MODE (Max/Min/Avg/Dif) 10. LCD button 11. Temperature sensor 4. SET button inputs (2) 5. Backlight button 6. LOG (data logging) button 7. -
Page 5: Display Layout
3. MAX icon 13. T2 input icon 4. MIN icon 5. AVG icon 14. T2 input type (J, K, T; 20250-92 only) 6. DIF icon 15. T1 temperature value 7. User-selectable tempera- ture units (°C or °F) 16. T1 input icon 8. -
Page 6: Setup And Operation
"- - - -". If the temperature being measured is outside the meter’s valid range, the display shows “OL” (overload). Thermocouple Input Function (20250-92 only) 1. Press SET button to enter setup mode. 2. Toggle through the setup options until the T1 or T2 input icon starts to flash. - Page 7 Temperature Units Function 1. Press SET button to enter setup mode. 2. Toggle through the setup options until the temperature unit of measure icon starts to flash. 3. Use the Up () and Down () buttons to select the desired the temperature unit of measure °C/°F. 4.
- Page 8 Average (AVG) Function 1. Two probes must be inserted into channels T1 and T2 for this function to work. 2. Press the MODE button to enter the mode function. 3. Toggle through the mode options by pressing the MODE button to select the AVG icon on the display. 4.
- Page 9 Offset/Calibration Function Using the Offset to Adjust for Probe Errors Use the offset/calibration option to adjust the meter’s readings to compensate for the errors of a specific sensor. The allowable adjustment range is ±9.0°F or ±5.0°C. 1. Plug the probe into the meter’s input connector. 2.
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Page 10: Data Logging Functions
Alarm Function 1. The high and low alarm limits are set in the software only. 2. The meter must be connected to your PC via a USB cable. 3. Click on the Setup icon in the software to adjust the alarm limits for both T1 and T2 channels. - Page 11 Data Logging 1. Press LOG button to start recording data based on the sampling rate set. 2. Pressing the LOG button a second time for 2 seconds will end the recording function. 3. The sampling rate cannot be changed during data recording.
- Page 12 6. In the Data Logger Setting menu, confirm the sampling rate, unit of measure, probe type (20250-92 only), and alarm limits, then select “OK”. 7. See the Help icon within the software for detailed instructions on other software functions.
- Page 13 Software Installation 1. Insert the CD into the PC. 2. Double-click the set up.exe file to launch the software installation program. 3. Follow the installation wizard to complete the installation. 4. If the USB driver needs to be updated or driver error message is received, please go to the folder with driver on the CD to update the driver.
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Page 14: Specifications
Specifications Range Resolution Accuracy Thermocouple meter 20250-92 Type J: –328 to 1832°F (–200 to 1000°C) ±1 of reading + 1.8°F (1°C) 0.1°F (0.1°C) from –148 to Type K: –418 to 2501°F below –148°F (–99.9°C); 1832°F (–99.9 to 999.9°C); (–250 to 1372°C) ±1 of reading + 0.9°F (0.5°C) - Page 15 Note: If you do not intend to use thermometer for a long time, remove the batteries. It is recommended that Digi-Sense products are calibrated annually to ensure proper function and accurate measure- ments; however, your quality system or regulatory body may require more frequent calibrations.
- Page 16 For Product and Ordering Information, Contact: Toll-Free: 1-800-323-4340 Toll-Free: 1-800-358-5525 Phone: 1-847-549-7600 Phone: 1-847-327-2000 Fax: 1-847-247-2929 Fax: 1-847-327-2700 ColeParmer.com/Digi-Sense Davis.com/Digi-Sense 1065DGMAN_20250-92,-94,-96 Manual Part No. 00100-22...
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