User manual
AHHYTM_E2.2.1
23/23
Innovative Sensor Technology IST AG, Stegrütistrasse 14, CH-9642 Ebnat-Kappel, Switzerland,
Phone: +41 (0) 71 992 01 00 | Fax: +41 (0) 71 992 01 99 | E-mail: info@ist-ag.com | Web: www.ist-ag.com
All mechanical dimensions are valid at 25 °C ambient temperature, if not differently indicated • All data except the mechanical dimensions only have information purposes and are not to be understood as assured characteristics • Technical
changes without previous announcement as well as mistakes reserved • The information on this data sheet was examined carefully and will be accepted as correct; No liability in case of mistakes • Load with extreme values during a longer
period can affect the reliability • The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner • Typing errors and mistakes reserved • Product
specications are subject to change without notice • All rights reserved
Application Note
Humidity Module
HYT
7.2 Description of Operation
After power on, the module shows the following information for 2 seconds:
HYT 271 – Module
www.ist – ag.com
After that it changes to the measurement mode and shows the values of relative humidity and temperature.
Humidity 54,3 %
Temperat 23,7 °C
The following conguration options are available in addition to the measured values:
1. CONFIGURATION
Address 0xHH (0x00 – 0x7F)
2. CONFIGURATION
Corr-Temp. 0.0K (-1,0K – 1,0K)
3. CONFIGURATION
Corr-Humid 0.0% (-1,0% - 1,0%)
Switching between the standard and conguration menus is possible by use of the UP and DOWN buttons.
By pressing the OK button into a conguration menu the software goes into the input mode. This mode is shown
by the cursor and blinking of the last character. In the input mode the function of UP / DOWN will be changed to
+/-. The value can be changed into the limits by pressing the +/- buttons.
The new value is stored by pressing the OK button.
By pressing the ESC button the entered value is rejected and the software leaves the input mode.
8. Additional documents
Document name:
Data sheets: DHHYT271_E DHHYT271_D
DHHYT221_E DHHYT221_D
DHHYT939_E DHHYT939_D
DHHYTLabKit_E DHHYTLabKit_D
DHLCD-Module_E DHLCD-Module_D










