EYC FTS34, Operation Manual

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9
Thermo Air Velocity Transmitter
Air Velocity
V. Inspection and maintenance
1. Maintenance
Since this product is inspected and calibrated for high accuracy at the factory before
shipment, no calibration on the installation site is necessary when this product is
installed. For inspection and maintenance follow the instructions below：

Periodic inspection
Periodically inspect this product for its sensing accuracy, and clean the cover. Set the
period between inspections based on atmospheric dust and other contaminants in the
installation environment.
2. Troubleshooting

Sensor maintenance
Do not damage sensor surface during the maintenance process.

Troubleshooting
If any problem occurs during operation, refer to the table below for appropriate
solutions.
Problem Cleck items Soluations

No output

Unstable output

Disconnected wiring

Loose wiring

Power supply voltage

Sensor damages

Re-perform wiring

Crew on terminal tightly or replace wires

Replace the sensor

Slow response to
output

Errow in output

Moisture /condensation on the
product

Check installed location

Check installed angle

Check dust and contamination
on the sensor

Remove the sensor and filter. Dry
power-off state sensor in clean air
seasoning

Refer to the section

Align measurement head with flow
direction

Cleaning the filter

Changing the filter

Calibrate

Replace the sensor