Omega RDXL12SD User Manual

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User’s Guide

MADE IN TAIWAN

RDXL12SD

12-Channel Temperature Recorder

with Excel-Formatted

Data Logging SD Card

U.S.A.:

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.

12-CHANNEL TEMPERATURE

RECORDER WITH EXCEL-FORMATTED

DATA LOGGING SD CARD

USER’S MANUAL

RDXL12SD

Please read this manual carefully and thoroughly before using this product.

TABLE OF CONTENTS

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

What’s in the Case. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Setup Instructions . . . . . . . . . . . . . . . . . . . . . . . . . 6 – 8

Adjusting Thermcouple Offsets. . . . . . . . . . . . . . . . . . 8

Operating Instructions. . . . . . . . . . . . . . . . . . . . . 9 – 12

Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . 9

Holding and Storing Measurements. . . . . . . . . 10

Automatic vs. Manual Data Logging . . . . 10 – 11

Transferring Data from the SD Card

to a Computer . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Maintenance & Troubleshooting Tips . . . . . . . . . . . . 14

2

INTRODUCTION

Thank you for purchasing Omega® RDXL12SD 12-Channel Temperature Recorder with
Excel-formatted Data Logging SD Card. Please read this user’s manual carefully and
thoroughly before using the instrument.

The RDXL12SD is a general-purpose handheld instrument that can measure up to
12 channels of temperature with 0.4% accuracy using any of six different types of
thermocouple. Up to eight channels can be displayed at a time. The instrument also can be
configured to automatically record up to 12 channels during the same period every day—
a function called l

Although thermocouples are not as accurate as other types of thermometers, they more
than make up for this shortcoming with an extended measurement range. For example,
the RDXL12SD can measure and read out temperatures from -148º to 2372ºF
(-100º to 1300ºC) using “K” type thermocouples, and temperatures from -148º to 2102ºF
(-100º to 1100°C) using “J” type thermocouples. “R” and “S” typ
even higher upper limi
a measurement range of -50° to 500°F (-45° to 260°F).

These very wide ranges, plus a fast response time and a low price tag, suit thermocouple
thermometers for a variety of commercial and industrial tasks requiring measurement of
very high and low temperatures. Examples include applications
processing indu
and paper production.

Because it is microprocessor-based, the RDXL12SD 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 time­stamping and
(a process called data logging), the user can remove the card and plug it into to a laptop or
desktop computer either directly or through an SD card reader. The data logs are stored on
the card as files with the .xls extension, which can be opened by Microsoft’s Excel
application.

The RDXL12SD has a backlit 3.9 in. diagonal display and is powered by eight “AA” batteries
or an optional 9-VDC AC ad

oop data recording.

e thermocouples have an

t. The two “K” type thermocouples included with the instrument have

in the food and chemical

stries, HVAC (heating, ventilation and air-conditioning), power generation,

storing the measurements on an SD card plugged into the instrument

apter.

3

KEY FEATURES

• Twelve independent temperature measurement channels

• Displays up to eight channels at a time; one push of a button switches to Channels

9 through 12

• Works with and automatically temperature-compensates for six popular
thermocouple types: K, J, T, E, S and R

• Combining thermocouple types extends potential measurement range to

-148º to 3092ºF (-100º to 1700ºC)

• Can automatically log up
(loop data recording

• Big (3.9 in. 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 data logging and changing of SD card storage location

• Outputs Excel-compatible data

• Accepts SD memory card

• Auto power off function that can be disabled to enable long-term data logging

• Powered by eight “AA” batteries or optional 9V AC/DC adapter

to 12 channels of data every day during same period

)

logs

s of up to 16 GB capacity

WHAT’S IN THE CASE

The RDXL12SD comes fully assembled in a carrying case along with a 2 GB SD memory
card, two general-purpose “K” type thermocouples and this user’s

4

manual.