Release Date: 06/2022
TDP05K Advanced Thermal Dispersion Probe Airflow Measuring System Technical Bulletin
Page 15
Analog Output Calibration
Submenu Selections
Configurable Options
Output 1 mA Offset
Select between ±0 to 2 mA adjustment range.
Output 1 mA Low Span
Select between 1 to 4 mA.
Output 1 mA High Span
Select between 1 to 20 mA. This value must be higher than the low span value of Output 1.
Output 2 mA Offset
Select between ±0 to 2 mA adjustment range.
Output 2 mA Low Span
Select between 1 to 4 mA.
Output 2 mA High Span
Select between 1 to 20 mA. This value must be higher than the low span value of Output 2.
Design Range Low
Selects the low range of output flow spanning.
Design Range High
Selects the maximum range of output flow spanning.
Temperature Range Low
Select between -34.6 to 129.2°F (-37 to 54°C) for low range of output temperature spanning.
Temperature Range High
Select between -34.6 to 129.2°F (-37 to 54°C) for maximum range of output temperature spanning.
Test Output Ch1
Select between 0, 50, and 100% for testing output of Channel 1.
Test Output Ch2
Select between 0, 50, and 100% for testing output of Channel 2.
Table 10: Analog Output Calibration Submenu Selections and Configurable Options
NOTE: By default, the
TDP05K
Airflow Measuring System is factory calibrated.
Calibrating the Analog Output
To calibrate the analog output with the primary probe mounted in its operating location or in a calibration lab:
1. Set the Analog Output 1 parameter to
None
to keep the output from changing with flow or temperature. See Analog Output 1
Parameters for instructions.
2. In the Operator Menu, press
UP or DOWN
to scroll to the Output Calibration submenu.
3. Press
ENTER
. Scroll to the
Output 1 mA
Offset
submenu selection and press
ENTER
.
4. The display indicates the current Analog Output 1 offset.
5. Connect a digital multi-meter set to scale Analog Output 1 across terminals 1 and 2 on the TDP05K Airflow Measuring System. See
Figure 11 for terminal locations.
Figure 11: TDP05K Airflow Measuring System—Terminals 1 and 2