Omega Products RHXL-3SD Installation Manual

omega.com

e-mail: [e-mail]

For latest product manuals:

omegamanual.info

RHXL-3SD

Thermometer-Hygrometer with

Data Logging SD Card

Shop online at

User’s Guide

MADE IN TIAWAN

Servicing North America:

U.S.A.: Omega Engineering, Inc., One Omega Drive, P.O. Box 4047

ISO 9001 Certified Stamford, CT 06907-0047 USA

Toll Free: 1-800-826-6342 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

Canada: 976 Bergar

Laval (Quebec), H7L 5A1 Canada
Toll-Free: 1-800-826-6342 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

For immediate technical or application assistance:

U.S.A. and Canada: Sales Service: 1-800-826-6342/1-800-TC-OMEGA

®

Customer Service: 1-800-622-2378/1-800-622-BEST

®

Engineering Service: 1-800-872-9436/1-800-USA-WHEN

®

Mexico/ En Español: 001 [phone] FAX: [phone]
Latin America: [e-mail] e-mail: [e-mail]

Servicing Europe:

Benelux: Managed by the United Kingdom Office

Toll-Free: 0800 099 3344 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

Czech Republic: Frystatska 184

733 01 Karviná, Czech Republic
Toll-Free: 0800-1-66342 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

France: Managed by the United Kingdom Office

Toll-Free: 0800 466 342 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

Germany/Austria: Daimlerstrasse 26

D-75392 Deckenpfronn, Germany
Toll-Free: 0800 6397678 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

United Kingdom: OMEGA Engineering Ltd.

ISO 9001 Certified One Omega Drive, River Bend Technology Centre, Northbank

Irlam, Manchester M44 5BD United Kingdom
Toll-Free: 0800-488-488 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

OMEGAnet®Online Service Internet e-mail

omega.com [e-mail]

It is the policy of OMEGA Engineering, Inc. to comply with all worldwide safety and EMC/EMI
regulations that apply. OMEGA is constantly pursuing certification of its products to the European New
Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification.

The information contained in this document is believed to be correct, but OMEGA accepts no liability for any
errors it contains, and reserves the right to alter specifications without notice.
WARNING: These products are not designed for use in, and should not be used for, human applications.

1

TABLE OF CONTENTS

Introduction .................................................................................................................................... 2

Key features ................................................................................................................................... 2

Operating instructions .................................................................................................................... 3

What’s in the case .............................................................................................................. 3

Setup .................................................................................................................................. 4

Normal operation ............................................................................................................... 6

Holding and storing measurements .................................................................................... 7

Automatic vs. manual datalogging ..................................................................................... 7

Transferring data from the SD card to a computer ............................................................ 8

Specifications ................................................................................................................................. 9

Maintenance & troubleshooting tips .............................................................................................10

Optional accessories ..................................................................................................................... 10

2

INTRODUCTION

Thank you for purchasing Omega's RHXL3SD Thermometer-Hygrometer with Datalogging SD
Card. Please read this user’s manual carefully and thoroughly before using the instrument.

The RHXL3SD is a general-purpose handheld instrument that can make four kinds of
measurements:

• The temperature and humidity (simultaneously)

• The dew point of ambient air

• The wet-bulb temperature of ambient air

• The temperature of a surface

The instrument comes with a temperature-humidity probe that is used to make the first three
types of measurement. Surface temperature measurements are made using an optional Type K or
Type J thermocouple.

Several features and capabilities enhance the RHXL3SD’s versatility. Among them are
automatic temperature compensation for dew point, wet-bulb and thermocouple measurements;
the ability to hold readings and display maximum and minimum readings; and an automatic
power off function that extends battery life.

Because it is microprocessor-based, the RHXL3SD can make full use of the portability,
reliability and large storage capacities that SD memory cards offer. Measurements can be made
automatically at any sampling rate between one second and one hour. After the instrument time­stamps and stores the measurements on an SD card plugged into it (a process called datalogging),
the user can remove the card and plug it into a laptop or desktop computer either directly or via a
USB card reader. The data logs are stored on the card as files with the .xls extension that can be
opened by Microsoft’s Excel application.

The RHXL3SD has a backlit 2-1/2 inch diagonal display and is powered by six AA Alkaline
batteries or an optional 9-VDC AC adapter.

KEY FEATURES

• Four-function instrument measures temperature/humidity, dew point, wet-bulb

temperature and surface temperature

• Big (2.5-inch diagonal) front-panel green backlit LCD is easy to read

• Displays maximum and minimum readings and holds any reading

• Automatically logs measurements at sampling time settable from one second to one hour

• Also supports manual datalogging and changing of SD card storage location

• Outputs Excel-compatible data logs

• Accepts SD memory cards as large as 16 GB

• Auto power off function

• Powered by six AA batteries or optional 9V AC/DC adapter

3

OPERATING INSTRUCTIONS

What’s in the case

The RHXL3SD comes fully assembled in a soft carrying case along with a temperature-humidity
probe, a 2 GB SD memory card and this user’s manual.

Optional accessories available include:

• Type K and Type J thermocouples

• A 9VDC adapter for a 110VAC power supply

• A hard carrying case

See the Optional Accessories section of this manual for more details.

Figure 1 shows all of the controls and indicators on the front, right side, back, top and bottom of
the RHXL3SD. It also shows the main components of the included temperature-humidity probe.
Familiarize yourself with the positions and functions of these controls, indicators and connectors
before moving on to the setup procedure.

1. The RHXL3SD’s controls and indicators and other physical features

[CALLOUTS FOR FIGURE 1]
3-1 Liquid-crystal display
3-2 POWER/ESC button
3-3 FUNC./HOLD/NEXT button
3-4 REC/ENTER button
3-5 SET ▼ button
3-6 LOGGER ▲ button
3-7 Socket for temperature-humidity probe
3-8 Socket for Type K or J thermocouple thermometer
3-9 SD card socket