Vaisala HMW60U, HMW60Y User Manual

USER'S GUIDE

Vaisala HUMICAP®Humidity and

Temperature Transmitters

HMW60U/Y

U302EN12

PUBLISHED BY
Vaisala Oyj Phone (int.): [phone]

P.O. Box 26 Fax: [phone]
FIN-00421 Helsinki
Finland

Visit our Internet pages at http://www.vaisala.com/

© Vaisala 2006
No part of this manual may be reproduced in any form or by any means, electronic or

mechanical (including photocopying), nor may its contents be communicated to a third
party without prior written permission of the copyright holder.

The contents are subject to change without prior notice.

Please observe that this manual does not create any legally binding obligations for
Vaisala towards the customer or end user. All legally binding commitments and
agreements are included exclusively in the applicable supply contract or Conditions of
Sale.

HMW60U/Y Transmitters

U302en-1.1 Operating Manual

Contents

1. PRODUCT DESCRIPTION ...................................................................................................1

2. TO BE NOTED WHEN M EASURING HUMIDITY ..................................................................2

3. INSTALLATION....................................................................................................................3

3.1 Selecting the place of installation ..........................................................................3

3.2 Mounting..................................................................................................................3

3.3 Electrical connections.............................................................................................4

4. CALIBRATION .....................................................................................................................5

5. MAINTENANCE....................................................................................................................6



5.1 Replacing the HUMICAP

6. TECHNICAL DATA...............................................................................................................7

180 sensor and the filter ..............................................6

6.1 Relative humidity.....................................................................................................7

6.2 Temperature (Y model only) ...................................................................................7

6.3 General......................................................................................................8

6.4 Electromagnetic com patibility ..................................................................... 8

6.4.1 Emissions..................................................................................................8

6.4.2 Immunity ...................................................................................................8

GUARANTEE ...................................................................................................................... .8

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HMW60U/Y Transmitters
Operating Manual U302en-1.1

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HMW60U/Y Transmitters

U302en-1.1 Operating Manual

1. PRODUCT DESCRIPTION

The HMW60 transmitters are wall mounted truly two-wire transmitters for the
measurement of humidity (HMW60U) and for the measurement of humidity
and temperature (HMW60Y).

The HMW60U/Y transmitters can be mounted directly on the wall. Thye are
easy to install and maintain. One point calibration is easily performed with the
HMI41 indicator and the calibration cable 19116ZZ.

Both transmitter types incorporate the HUMICAP®180 humidity sensor which
uses an operating principle based on changes in the capacitance of a thin
polymer film as it absorbs water molecules. The HMW60Y transmitters
mesure temperature with the reliable Pt 1000 sensor.

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