Omega RDXL4SD User Manual

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User’s Guide

RDXL4SD

4-Channel

Datalogger Thermometer

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MADE IN TAIWAN

Extended Warranty

Program

SM

Servicing North America:

USA: 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:

USA 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 Espan˜ol: 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 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 Engineering, Inc. 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.

TABLE OF

CONTENTS

Section Page

1. Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

3. Front Panel Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3-1 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3-2 Power Button (ESC, Backlight Button) . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3-3 Hold Button (Next Button) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3-4 REC Button(Enter Button) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3-5 Type Button (s Button, L Button) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3-6 Type Button (t Button, R Button). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3-7 SET Button (Time Check Button). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3-8 Logger Button (OFFSET Button, Sampling Time Check Button . . . . 6

3-9 T1, T2, T3, T4 Input Socket (Type K, Type J). . . . . . . . . . . . . . . . . . . . . 6

3-10 PT1 Input Socket (PT100 Ω). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3-11 PT2 Input Socket (PT100 Ω). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3-12 RS-232 Output Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3-13 DC9V Adapter Socket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3-14 Tripod Fix Nut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3-11 PT2 Input Socket (PT100 Ω). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3-12 RS232 Output Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3-13 DC 9V Adapter Socket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3-14 Tripod Fix Nut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3-15 Battery Cover Screws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3-16 Battery Compartment Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3-17 Stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3-18 SD Card Socket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4. Measuring Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4-1 Type K Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4-2 Type J/T/E/R/S Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4-3 PT 100 Ω Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4-4 T1-T2 Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4-5 Data Hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4-6 Data Record (Max/Min Reading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4-7 LCD Backlight ON/OFF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

5. Datalogger. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

5-1 Preparation Before Execute Datalogger Function . . . . . . . . . . . . . . . . 10

5-2 Auto Datalogger (Set Sampling Time ≥ 1 Sec) . . . . . . . . . . . . . . . . . . 11

5-3 Manual Datalogger (Set Sampling Time = 0 Sec). . . . . . . . . . . . . . . . 12

5-4 Auto Datalogger (Set Sampling Time = 0 Sec) . . . . . . . . . . . . . . . . . . 12

5-5 Check Sampling Time Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5-6 SD Card Data Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6. Saving Data from the SD Card to the Computer. . . . . . . . . . . . . . . . . . . . 14

7. Advanced Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

7-1 Set Clock Time (Year/Month/Date, Hour/Minute/Second). . . . . . . . 16

7-2 Decimal Point of SD Card Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

7-3 Auto Power OFF Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

7-4 Set Beeper Sound ON/OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

7-5 Select the Temperature Unit to °C or °F . . . . . . . . . . . . . . . . . . . . . . . . 18

7-6 Set Sampling Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

7-7 SD Memory Card Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

8. Power Supply from DC Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

9. Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

10. RS232 PC Serial Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

11. Offset Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

1. FEATURES

• Type K/J/T/E/R/S, Pt 100 ohm, measurement with 4 channel display.

• Simultaneously shows 4 channel display on the LCD.

• Type K : -100 to 1300 °C.

• Type J : -100 to 1200 °C.

• Pt 100 ohm : -199.9 to 850.0 °C.

• °C/°F, 0.1 degree/1 degree.

• 4 channels ( T1, T2, T3, T4 ), T1-T2.

• Microcomputer circuit provides intelligent function

and high accuracy.

• Offset adjustment for the Type K/J/T/E/R/S measurement.

• Offset adjustment for the Pt 100 measurement.

• Measuring unit can select to or . 

• Real time SD memory card Datalogger, Built-in Clock

and Calendar, real time data recorder, sampling time set
from 1 second to 3600 seconds.

• Manual datalogger is available (set the sampling
time to 0 second), during execute the manual datalogger
function, can be set at different positions (location)
(position 1 to position 99).

• Easy operation, computer is not needed to
setup with software; After execute datalogger just take
the SD card from the meter and plug in the SD card
into a computer. It will down load all the measured
values with the time information ( year/month/date/
hour/minute/second ) to Excel directly; then the user can
make further data or graphic analysis.

• SD card capacity : 1 GB to 16 GB.

• LCD with green light backlight, easy reading.

• Can default auto power off or manual power off.

• Data hold, record max. and min. reading.

• Microcomputer circuit, high accuracy.

• Powered by 6-AA batteries or 9 Vdc adapter.

• RS232/USB PC COMPUTER interface.

• Heavy duty & compact housing case.

1

2. SPECIFICATIONS

2-1 General Specifications

Circuit Custom one-chip of microprocessor LSI

circuit.

Display LCD size: 52 mm x 38 mm

LCD with green backlight ( ON/OFF ).
Channels T1, T2, T3, T4, T1-T2.
Sensor type Type K thermocouple probe.

Type J/T/E/R/S thermocouple probe.

PT 100 ohm probe

*

Cooperate with an 0.00385 alpha
coefficient, meet DIN IEC 751.

Resolution 0.1°C/1°C, 0.1°F/1°F.
Datalogger Auto 1 second to 3600 seconds
Sampling Time

@ Sampling time can set to 1 second,

Setting range

but memory data may loss.

Manual Push the data logger button

once will save data one time.

@ Set the sampling time to

0 second.

@ Manual mode, can also select the

1 to 99 position ( Location ) no.

Memory Card SD memory card. 1 GB to 16 GB.
Advanced * Set clock time ( Year/Month/Date,
setting Hour/Minute/ Second )

* Decimal point of SD card setting

* Auto power OFF management

* Set beep Sound ON/OFF

* Set temperature unit to °C or °F 

* Set sampling time

* SD memory card Format

2

Temperature Automatic temp. compensation for the
Compensation type K/J/T/E/R/S thermometer.
Linear Linear Compensation for the full range.
Compensation
Offset Available for Type K/J/T/E/R/S and
Adjustment Pt 100 ohm.
Probe Input Type K/J/T/E/R/S
Socket 2 pin thermocouple socket.

Pt 100 ohm : Ear phone socket.

Over Indication Show " - - - - ".
Data Hold Freeze the display reading.
Memory Recall Maximum & Minimum value.
Sampling Time Approx. 1 second.
of Display
Data Output RS 232/USB PC computer interface.

* Connect the optional RS232 cable

UPCB-02 will get the RS232 plug.

* Connect the optional USB cable

USB-01 will get the USB plug.

Power off Auto shut off saves battery life or

manual off by push button.
Operating 0 to 50°C.
Temperature
Operating Less than 85% R.H.
Humidity
Power Supply

*

A

6-AA alkaline batteries

*

A

DC 9V adapter input. ( AC/DC power
adapter is optional ).

3

Power Current Normal operation ( w/o SD card save

data and LCD Backlight is OFF) :

Approx. DC 8.5 mA.

When SD card save the data but and

LCD Backlight is OFF) :

Approx. DC 30 mA.

*AIf LCD backlight on, the power

consumption will increase approx.
14 mA.

Weight 489 g/1.08 LB.
Dimension 177 x 68 x 45 mm

(7.0 x 2.7x 1.9 inch)
Accessories *Instruction Manual
Included

Optional
Accessories

* USB cable, USB-01.

* RS232 cable, UPCB-02.

* Data Acquisition software,

SW-U801-WIN.

* AC to DC 9V adapter.

* Hard carrying case, CA-06.

* Soft carrying case, CA-05A.

2-2 Electrical Specifications (23± 5°C)



PT 100 ohm

Resolution Range Accuracy

0.1  -199.9 to 850.0°C  ± ( 0.4 % + 1°C)

0.1  -327.0 to 999.9°F  ± ( 0.4 % + 1.8°F)
1  1000 to 1562°F  ± ( 0.4 % + 2°F)
*

Pt 100 ohm probe TP-101 is the optional accessory.

4

*4 Type K Thermocouples
*6-AA Alkaline Batteries
*2 GB-SD (2 GB SD Card)

Type K/J/T/E/R/S

Sensor Resolution Range Accuracy
Type

T

ype K 0.1°C -50.1 to -100.0°C  ± ( 0.4 % + 1°C )

-50.0 to 999.9°C ± ( 0.4 % + 0.5°C)

1°C 1000 to 1300°C ± ( 0.4 % + 1°C)

0.1°F -58.1 to -148.0°F ± ( 0.4 % + 1.8°F)

-58.0 to 999.9°F ± ( 0.4 % + 1°F)

1°F 1000 to 2372°F ± ( 0.4 % + 2°F)

T

ype J 0.1°C -50.1 to -100.0°C  ± ( 0.4 % + 1°C)

-50.0 to 999.9°C  ± ( 0.4 % + 0.5°C)

1°C 1000 to 1150°C ± ( 0.4 % + 1°C)

0.1°F -58.1 to -148.0°F ± ( 0.4 % + 1.8°F)

-58.0 to 999.9°F ± ( 0.4 % + 1°F)

1°F 1000 to 2102°F ± ( 0.4 % + 2°F)

T

ype T 0.1°C -50.1 to -100.0°C ± ( 0.4 % + 1°C)

-50.0 to 400.0°C  ± ( 0.4 % + 0.5°C)

0.1°F -58.1 to -148.0°F ± ( 0.4 % + 1.8°F)

-58.0 to 752.0°F ± ( 0.4 % + 1°F)

T

ype E 0.1°C -50.1 to -100.0°C ± ( 0.4 % + 1°C)

-50.0 to 900.0°C ± ( 0.4 % + 0.5°C)

0.1°F -58.1 to -148.0°F ± ( 0.4 % + 1.8°F)

-58.0 to 999.9°F ± ( 0.4 % + 1°F)

1°F 1000 to 1652°F ± ( 0.4 % + 2°F)

T

ype R 1°C 0 to 600°C ± ( 0.5 % + 1°C)

601 to 1700°C ± ( 0.5 % + 1°C)

1°F 32 to 1112°F ± ( 0.5 % + 2°F)

1113 to 3092°F ± ( 0.5 % + 2°F)

T

ype S 1°C 0 to 600°C ± ( 0.5 % + 1°C)

601 to 1500°C ± ( 0.5 % + 1°C)

1°F 32 to 1112°F ± ( 0.5 % + 2°F)

1113 to 2732°F ± ( 0.5 % + 2°F)

Remark :

a. Accuracy value is specified for the meter only.
b. Accuracy is tested under the meter's environment temperature

within 23 ± 5°C.

c. Linearity Correction :

Memorize the thermocouple's curve into the intelligent CPU
circuit,

@ Above specification tests under the environment RF Field Strength

less than 3 V/M & frequency less than 30 MHz only.

5

3. FRONT PANEL DESCRIPTION

Fig. 1

3-1 Display.
3-2 Power Button (ESC, Backlight Button)
3-3 Hold Button (Next Button)
3-4 REC Button (Enter Button)
3-5 Type Button (▲ Button, L Button)
3-6 T1-T2 Button (▼ Button, R Button)
3-7 SET Button (Time check Button)
3-8 Logger Button (OFFSET Button, Sampling time check Button)
3-9 T1,T2,T3,T4 input socket ( Type K, Type J )
3-10 PT1 input socket (Pt 100 ohm)
3-11 PT2 input socket (Pt 100 ohm)
3-12 RS-232 output terminal
3-13 DC 9V adapter socket
3-14 Tripod Fix Nut
3-15 Battery Cover Screws
3-16 Battery compartment/Cover
3-17 Stand
3-18 SD card socket

6