AB-7050
19
Inspection and Maintenance
Since Neosensor is factory-inspected and -calibrated for high accuracy, no field calibration is necessary when Neosensor is
installed. For inspection and maintenance, follow the instructions below.
Periodic inspection
Periodically inspect Neosensor for its measuring accuracy, and clean the cover. Set the period between inspections based on
how much atmospheric dust and other contaminants are contained in the installation environment.
If Neosensor is installed in an animal holding room or a hospital operating room, cover Neosensor when the room is sterilized.
Troubleshoot
If any problem occurs during operation, refer to the table below for appropriate solutions.
Troubleshooting
Problems Check
points
Solutions
Loose wiring
Disconnected wiring
Re-perform wiring.
Power supply voltage
●
No output
●
Unstable output
Neosensor main unit damages
Replace the Neosensor.
Slow response to output
Moisture/condensation on Neosensor
1. Remove the cover.
2. Disconnect the power.
3. Air-dry the Neosensor in a clean air.
Installation location
Refer to
Installation
section.
Clean the cover.
Calibrate.
Error in output
Dust and contamination on the Neosensor
main unit
Replace the Neosensor.
Calibration
Neosensor is factory-calibrated and does not require field calibration right after installation. However, field-calibrate Neosensor
if a shift in the output due to aged deterioration is found.
For a humidity output error, calibrate the Neosensor with adjustment knobs on the board inside the main unit. Follow the below
instructions for calibration.
●
Two adjustment knobs (VR1 for fine adjustment and VR2 for rough adjustment) are provided.
Turn clockwise to increase the output value and counterclockwise to decrease the output value.
Note that the measuring accuracy specified hereinbefore will not be assured after field-calibration with the adjustment
knobs.
●
Carefully field-calibrate Neosensor so that the heat on your hands do not affect the Neosensor.
Do not allow the heat generated from human body and/or appliances to affect Neosensor while calibrating.
●
Use a reliable calibration instrument for field calibration.
●
Carefully handle the product and check the appropriate environment for field-calibration.
●
Calibrated digital multimeter is recommended to check output value.
Notes:
* Temperature output cannot be calibrated.
* Ask our salesperson if a shift in the output of new Neosensor is found.
Figure 25. Location of the adjustment knobs VR1 and VR2 on the board: Models HTY7043T series and HY7043T series
Fine adjustment knob (VR1)
Temperature sensing element
Rough adjustment knob (VR2)
Humidity sensing element
