www.sensirion.com Version 2.0 – August 2012 1/2
Datasheet Evaluation Kit EK-H5
For SHT2x and SHT7x Humidity and Temperature Sensors
Very simple Evaluation Kit
Applicable to SHT2x and SHT7x series
Viewer Software for download
USB Interface
Set Up of EK-H5
Figure 1 Schematic of Evaluation Kit EK-H5. USB Dongle with
I2C to USB converter. Sensor cable is connected via plug to this
USB dongle. Either SHT7x or SHT21 on PCB may be plugged to
the cable. Viewer software must be downloaded from the
Sensirion web page.
Pin assignment of SHT21 on PCB top view from left to right:
SCL, VDD, VSS, SDA (same as SHT7x).
Material Contents
1 EK-H5 USB Stick: Contains USB to I2C translator
capabilities.
1 Sensor cable of 1m length with plug for connecting
sensors with USB dongle.
1 SHT21 sensor: SMD type, DFN 3-0 packaged
sensors with version 4C sensor chip mounted to small
PCB with connector. Please refer to datasheet SHT21
for more details.
Device Certification
The Evaluation Kit EK-H5 is RoHS and WEEE compliant.
Viewer Software
The viewer software displays relative humidity and
temperature data on two different windows. It allows for
addressing all available resolutions, absolute or relative
timing, free choice of measurement intervals (1 … 1440s),
and choice for displaying °C or °F. The data may be
logged, stored and exported to Excel format.
Viewer Software must be downloaded from the Sensirion
web page. Please find it on www.sensirion.com/ek-h5.
Please note that the USB stick, sensor cable and sensor
must be connected to the computer before starting the
software. No further software driver or any other hardware
is required for running EK-H5.
When starting the viewer software, the right sensor must
be selected in a first window (more sensors are given for
choice). The settings must be chosen and then the
measurement may be started.
Product Summary
The evaluation kit EK-H5 is made for running Sensirion’s
humidity and temperature sensors and display measured
values. It is held very simple: A USB dongle with USB to
I2C translator capabilities connects with a sensor cable
and sensor. With viewer software it is able to
communicate with SHT1x, SHT7x as well as the new
generation SHT2x and display measured values.
The viewer software can be downloaded from the
Sensirion web page and owns some simple data-logger
features.
The main purpose of the evaluation kit is demonstrating
the unique performance of Sensirion’s humidity and
temperature sensors without any own hard or software
design work.
www.sensirion.com Version 2.0 – August 2012 2/2
Revision History
Date
Version
Page(s)
Changes
January 2010
1.0
1 – 2
Initial release
August 2012
2.0
1
Changed hyperlink
Important Notices
Warning, Personal Injury
Do not use this product as safety or emergency stop devices or in
any other application where failure of the product could result in
personal injury. Do not use this product for applications other
than its intended and authorized use. Before installing, handling,
using or servicing this product, please consult the data sheet and
application notes. Failure to comply with these instructions could
result in death or serious injury.
If the Buyer shall purchase or use SENSIRION products for any
unintended or unauthorized application, Buyer shall defend, indemnify
and hold harmless SENSIRION and its officers, employees,
subsidiaries, affiliates and distributors against all claims, costs,
damages and expenses, and reasonable attorney fees arising out of,
directly or indirectly, any claim of personal injury or death associated
with such unintended or unauthorized use, even if SENSIRION shall be
allegedly negligent with respect to the design or the manufacture of the
product.
ESD Precautions
The inherent design of this component causes it to be sensitive to
electrostatic discharge (ESD). To prevent ESD-induced damage and/or
degradation, take customary and statutory ESD precautions when
handling this product.
See application note “ESD, Latchup and EMC” for more information.
Warranty
SENSIRION warrants solely to the original purchaser of this product for
a period of 12 months (one year) from the date of delivery that this
product shall be of the quality, material and workmanship defined in
SENSIRION’s published specifications of the product. Within such
period, if proven to be defective, SENSIRION shall repair and/or
replace this product, in SENSIRION’s discretion, free of charge to the
Buyer, provided that:
notice in writing describing the defects shall be given to
SENSIRION within fourteen (14) days after their appearance;
such defects shall be found, to SENSIRION’s reasonable
satisfaction, to have arisen from SENSIRION’s faulty design,
material, or workmanship;
the defective product shall be returned to SENSIRION’s factory at
the Buyer’s expense; and
the warranty period for any repaired or replaced product shall be
limited to the unexpired portion of the original period.
This warranty does not apply to any equipment which has not been
installed and used within the specifications recommended by
SENSIRION for the intended and proper use of the equipment.
EXCEPT FOR THE WARRANTIES EXPRESSLY SET FORTH
HEREIN, SENSIRION MAKES NO WARRANTIES, EITHER EXPRESS
OR IMPLIED, WITH RESPECT TO THE PRODUCT. ANY AND ALL
WARRANTIES, INCLUDING WITHOUT LIMITATION, WARRANTIES
OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE, ARE EXPRESSLY EXCLUDED AND DECLINED.
SENSIRION is only liable for defects of this product arising under the
conditions of operation provided for in the data sheet and proper use of
the goods. SENSIRION explicitly disclaims all warranties, express or
implied, for any period during which the goods are operated or stored
not in accordance with the technical specifications.
SENSIRION does not assume any liability arising out of any application
or use of any product or circuit and specifically disclaims any and all
liability, including without limitation consequential or incidental
damages. All operating parameters, including without limitation
recommended parameters, must be validated for each customer’s
applications by customer’s technical experts. Recommended
parameters can and do vary in different applications.
SENSIRION reserves the right, without further notice, (i) to change the
product specifications and/or the information in this document and (ii) to
improve reliability, functions and design of this product.
© Copyright 2010 by SENSIRION.
CMOSens® is a trademark of SENSIRION
All rights reserved
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4-23-5, Takanawa, Minato-ku http://www.sensirion.co.jp
Tokyo, Japan
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SENSIRION KOREA Co. Ltd. Phone: +82 31 440 9925~27
#1414, Anyang Construction Tower B/D, Fax: +82 31 440 9927
1112-1, Bisan-dong, Anyang-city info@sensirion.co.kr
Gyeonggi-Province http://www.sensirion.co.kr
South Korea
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Sensirion China Co. Ltd. phone: +86 755 8252 1501
Room 2411, Main Tower fax: +86 755 8252 1580
Jin Zhong Huan Business Building, info@sensirion.com.cn
Futian District, Shenzhen, www.sensirion.com.cn
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Find your local representative at: http://www.sensirion.com/reps
