Vaisala WINDCAP WS425 User's Guide download pdf (Page 182)

User's Guide ______________________________________________________________________

Periodic Maintenance

WMT700 is a very reliable and rugged sensor. Since no moving

or consumable parts are used, no periodic maintenance is

required. WMT700 has been calibrated at the factory, and you are

not required to perform recalibration.

NOTE

Periodic

calibration of WMT700 is not required for technical reasons.

You can use the WM Verifier to test the mechanical integrity of the

device and perform one

-point calibration.

However, some quality management systems may require regular

calibration of the measu

ring instruments.

To fulfill these requirements, Vaisala recommends that you recalibrate

the wind sensor every 24

months. Contact Vaisala Service Center for

more information.

Visual Inspection

Vaisala recommends that you carry out a periodic visual

inspection of the wind sensor to ensure correct operation and

clean the wind sensor if it becomes contaminated. If necessary,

you can also test the operation of WMT700 with an optional

verifier, which is a small echo-free chamber.

If any of the transducers have been bent, twisted or rotated, the

measurement results might not be accurate.

To avoid errors caused by a damaged array, check the following:

- Array has not been hit or bent. All transducers must be parallel

to each other.

- Transducers have not been scraped or touched with sharp

objects. The silicon rubber transducer sleeve must be

undamaged.

Cleaning

Regular cleaning of WMT700 is not required. If the wind sensor

becomes contaminated, you can clean it with a soft cloth

moistened with a mild detergent. Do not use solvents or a

pressure washer to clean WMT700, since they may damage the

silicon rubber transducer sleeve.

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Vaisala WINDCAP WS425 User's Guide Page 182