TDP05K Advanced Thermal Dispersion Probe Airflow Measuring System Technical Bulletin
Release Date: 06/2022
Page 16
NOTE: The output value should be between 1 and 20 mA. To align the load resistance with the digital multi-meter, connect the actual process
load or a resistor of similar value to the actual process load (250 ohm/minute). The digital multi-meter should read a minimum value of 4.00
± 0.01 mA as determined in Output 1 Span.
6. If the digital multi-meter reads out of tolerance, press
UP or DOWN
to adjust the output for an acceptable reading. Once the last
digit is entered, the digital multi-meter reflects the adjusted Output 1 offset value.
7. Press
UP or DOWN
in the Output Calibration submenu to scroll to the Output 1 mA Low Span submenu selection.
8. Press
ENTER
. The display indicates the current Output 1 low span value.
9. Press
UP and DOWN
to scroll between 1 and 4 mA to set the low span value.
NOTE: The low span value must be set lower than the high span value.
10. Once the low span is set, press
ENTER
. In the Output Calibration submenu, scroll to the
Output 1 mA High Span
submenu selection
and press ENTER.
11. The display indicates the current Analog Output 1 high span value. Press
UP or DOWN
to set the high span by scrolling between 1
and 20 mA. The high span value must be higher than the low span value.
17. Scroll through the submenu options and make any necessary updates. See Table 10 for a description of the Analog Output Calibration
submenu selection options and their configurable options.
12. Once the high span is set, press
ENTER
to confirm the setting.
13. Set the parameter for Analog Output 1 to its previous value before the calibration process. See Analog Output 1 Parameters for
instructions.
14. Repeat Steps 1 through 13 for Analog Output 2. In Step 5, connect the digital multi-meter across terminals3 and 4.
15. After both outputs are configured and calibrated, if necessary, configure the Design Range Low, Design Range High, Temperature
Range Low, and Temperature Range High submenu selections.
16. In the Operator Menu, press
UP and DOWN
to scroll to the
Analog Output Calibration
submenu. Press
ENTER
.