EXTECH RHT10 DATA SHEET

User's Guide

Humidity / Temperature Datalogger

Model RHT10

Introduction

Congratulations on your purchase of the Relative Humidity and Temperature Datalogger. This datalogger
measures and stores up to 16,000 relative humidity and 16,000 temperature readings over 0 to 100%RH and -40
to +70°C (-40 to +158°F) measurement ranges. The user ca n easily configure the logging rate, high/low alar m and
start-mode, and download the stored dat a by plugging the module i nto a PC's USB port and runnin g the supplied
PC software. Relative Humidity, Temperature and Dew Point data can then be graphed, printed and exported to
other applications. GPP (grains per pound) data can be viewed using the optional RHT1 0-SW soft ware. The data
logger is supplied with a long-life lithium battery, which can typically allow logging for one year. This meter is
shipped fully tested and calibrated and, with proper use, will provide years of reliable service.

Features

 Memory for 32,000 readings (16,000 temperature and 16,000 humidity readings)
 Dew point indication via supplied Windows
 Grains per pound indication via optional Windows
 Selectable data sampling rate: 2s, 5s, 10s, 30s, 1m, 5m, 10m, 30m, 1hr, 2hr, 3hr, 6hr, 12hr, 24hr
 Status Indication via Red/Yellow LED and Green LED
 USB Interface for Set-up and Data Download
 User-Programmable Alarm Thresholds for Relative Humidity and Temperature
 Long battery life

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Software

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Software (order RHT10-SW)

Description

1. Protective cover

2. USB connector to PC port

3. Start button

4. RH and Temperature sensors

5. Alarm LED (red/yellow)

6. Record LED (green)

7. Mounting clip

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RHT10 V3.2 8/09

Operation

INSTALLING THE GRAPHING SOFTWARE

Install the supplied Windows
drive. If the installation program does not automatically open and provide on-screen prompts, open and browse the
CD-ROM drive, then find and double-click on the SETUP.EXE file included on the program disk. Follow the
on-screen prompts to complete the installation.

Before running the graphing software, please connect the RHT10 to the PC and install the USB Driver software as
described in the next section.

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PC Datalogger Software by placing the supplied program disk in the PC’s CD-ROM

INSTALLING THE USB DRIVER

Plug the RHT10 into an available USB port on the PC. If this is the first
the particular port on the PC, the following screen will appear:

Make sure the program disk is still in the PC CD-ROM drive. Select the ‘recommended’ installation and follow the
on-screen prompts to complete the driver installation. If this is a repeat connection of the RHT10 to the USB port,
the driver installation process will be automatically skipped.

time that the RHT10 has been connected to

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RHT10 V3.2 8/09

RUNNING THE GRAPHING SOFTWARE

With the RHT10 inserted in the PC’s USB port, double-click the Datalogger G raph icon to laun ch the progra m. The
main software screen will appear with the MENU BAR icons described as below.

Note: When the RHT10 is connected to the USB port, the battery inside the device is discharged at a

higher rate than normal. To conserve battery life, do not leave the RHT10 connected to the
USB port for a prolonged period of time

MENU BAR DESCRIPTION

The main menu for the software appears as follows:

From left to right the MENU BAR icons represent DATA DOWNLOAD, LOGGER SETUP, FILE OPEN, FILE
SAVE-AS, FILE PRINT, VIEW ALL, and ZOOM. In addition, the FILE, VIEW, LINK, and HELP pull-down menus
are available here. All of these functions are described in the following paragraphs.

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RHT10 V3.2 8/09