Vaisala HUMICAP HMW90 SERIES Guide de l'utilisateur télécharger pdf (Page 62)

USER'S GUIDE____________________________________________________________________

60 __________________________________________________________________ M211399EN-B

Repair Maintenance

Repair services are available through Vaisala Service Centers. For

contact information of Vaisala Service Centers, see

www.vaisala.com/servicecenters.

Replacing the HTM10 Module

If you cannot restore the measurement accuracy of the transmitter by

calibration and adjustment, you can replace the HTM10 module inside

the transmitter. HTM10 module is the small separate component board

with the HUMICAP® sensor; see Figure 4 on page 15.

NOTE

User calibration settings (adjustment by trimmers or service port) are

stored in the HTM10 module. If you replace the module, you do not need

to undo the previously applied correction.

CAUTION

Handle the HTM10 module carefully. When reinstalling the transmitter

body to the mounting base, avoid touching the HUMICAP® sensor or

the module.

1. Disconnect the transmitter body from the mounting base.

2. With your fingers, push apart the two plastic holders that hold the

HTM10 module and pull out the module.

1112-028

Figure 22 Replacing the HTM10 Module

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Vaisala HUMICAP HMW90 SERIES Guide de l'utilisateur Page 62