INSTUM_01378 Pag. 3/12
1 Introduction
Thermohygrometers DMA867 and DMA875 are instruments to measure environmental
temperature, relative humidity and dew point. The determination of dew point takes place
according to the formulations specified by ISO 7726.
The measuring element is housed inside a radiation shield, available with both natural (DMA875)
and forced (DMA867) ventilation, to achieve measuring conditions equivalent to a Stevenson
shelter.
1.1 Notes about this manual
Document: INSTUM_01378_en - Update on 9 Mar. 2015.
The information contained in this manual may be changed without prior notification. No part of this
manual may be reproduced, neither electronically or mechanically, under any circumstance, without
the prior written permission of LSI LASTEM.
LSI LASTEM reserves the right to carry out changes to this product without timely updating of this
document.
Copyright 2015 LSI LASTEM. All rights reserved.
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