Omega OS523E, OS53xE-CF, OS532E, OS524E, OS533E User Manual

OS530LE, OS532E, OS53xE-CF,

OS533E, OS534E, OS530HRE,

OS523E, OS524E OMEGASCOPE

®

Handheld Infrared Thermometer

Shown with
Built-in Distance
Measuring Option
and Digital Video
Camera Attachment

TM

omega.com

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For latest product manuals:

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User’s Guide

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®

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Unpacking Instructions

n4

Notes

Unpacking Instructions

Remove the Packing List and verify that you have received all
equipment, including the following (quantities in parentheses):

• OS530/OS520 Series Handheld Infrared Thermometer (1)

• AA Size Lithium Batteries (4)

• Soft Cover Carrying Case (1)

• Analog Cable (1)

• RS232 Cable (only for OS533E, OS534E, OS523E, OS524E)

• CD Software (only for OS533E, OS534E, OS523E, OS524E)

• Quick Start Manual (1)

Accessories

If you have any questions about the shipment, please call Customer
Service at:

1-800-622-2378 or 203-359-1660. We can also be reached on the
Internet at:

omega.com
e-mail: [e-mail]

When you receive the shipment, inspect the container and equipment
for signs of damage. Note any evidence of rough handling in transit.
Immediately report any damage to the shipping agent.

The carrier will not honor damage claims unless all shipping
material is saved for inspection. After examining and removing
contents, save packing material and carton in the event
reshipment is necessary.

Model No. Description

UNI-ADAP-9V 100-240 Vac adapter, 9 Vdc @1.7A
OS520-RCC Hard Carrying Case, Standard
OS520-SC-RCC Hard Carrying Case, Large
88013K Surface Probe, K Type T/C, up to 815°C (1500°F)
88001K Surface Probe, K Type T/C, up to 482°C (900°F)
CAL-3-IR NIST Traceable Calibration
SC-520 Sighting Scope
HH-DM Distance Measuring Meter
DV-CAM Digital/Video Camera

NOTE

i

ii

TABLE OF

CONTENTS

Page

Unpacking Instructions i
Chapter 1 General Description 1-1

1.1 Introduction 1-1

1.2 Parts of the Thermometer 1-5

1.2.1 Front of the Thermometer 1-5

1.2.2 Rear of the Thermometer 1-7

Chapter 2 Using the Handheld Infrared Thermometer 2-1

2.1 How to Power the Thermometer 2-1

2.1.1 Battery Operation 2-1

2.1.2 AC Power Operation 2-1

2.2 Operating the Thermometer 2-2

2.2.1 Measurement Techniques 2-6

2.3 Real Time Mode (Active Operation) 2-8

2.3.1 Adjusting Emissivity 2-11

2.3.2 Using the LOCK Function 2-11

2.3.3 Using the Trigger Function 2-11

2.3.4 Using the Distance Function 2-12

2.3.5 Laser Sighting Status 2-15

2.3.6 Calculating Temperature Values 2-15

2.3.7 Changing the Temperature from °F to °C (or vice versa) 2-16

2.3.8 Turning on the Display Backlighting 2-16

2.3.9 Thermocouple Input (OS532E, OS533E, OS534E) 2-16

2.3.10 Using the Alarm Functions 2-17

2.3.11 Using Ambient Target Temperature Compensation 2-19
(OS533E, OS534E, OS523E, OS524E)

2.3.12 PC Interface Software (OS533E, OS534E, OS523E, OS524E) 2-20

2.3.13 PC Interface Commands 2-25

2.3.14 Storing Temperature Data on Command 2-27
(OS533E, OS534E, OS523E, OS524E)

2.3.15 Logging Temperature Data in Real Time 2-28
(OS533E, OS534E, OS523E, OS524E)

2.3.16 Erasing the Temperature Data from Memory 2-29

2.4 Recall Mode (Passive Operation) 2-30

2.4.1 Reviewing the Last Parameters 2-32

2.4.2 Reviewing Previously Stored Temperature Data 2-32
(OS534E, OS523E, OS524E)

Chapter 3 Laser Sighting 3-1

3.1 Warnings and Cautions 3-1

3.2 Description 3-2

3.3 Operating the Laser Sighting 3-3

3.4 Laser Sighting Status 3-3

Chapter 4 Sighting Scope 4-1

4.2 Installing and Operating the Sighting Scope 4-1

OS530E/OS520E Series

Handheld Infrared Thermometer

iii

iv

Chapter 5 Digital Video Camera 5-1

5.1 Camera Parts 5-1

5.2 Battery Installation 5-1

5.3 Turning Camera ON/OFF 5-1

5.4 Menu Selection 5-1

Chapter 6 Maintenance 6-1

6.1 Replacing the Batteries 6-1

6.2 Cleaning the Lens 6-2

6.3 Calibrating the Thermometer 6-2

6.4 Servicing the Laser Sighting 6-2

Chapter 7 Troubleshooting Guide 7-1
Chapter 8 Specifications 8-1
Chapter 9 Glossary of Key Strokes 9-1

Appendix A How Infrared Thermometry Works A-1
Appendix B Emissivity Values B-1
Appendix C Determining an Unknown Emissivity C-1
Index I-1

TABLE OF

CONTENTS

1-1

General Description

1

1.1 Introduction

The OS530E/OS520E series Handheld Infrared (IR) Thermometers
provide non-contact temperature measurements up to 4500°F. They
offer effective solutions for many non-contact temperature
applications, including the following:

• Predictive Maintenance: Tracking temperature shifts which
indicate pending failure in solenoid valves.

• Energy Auditing: Locating wall insulation voids to reduce
building heating costs.

• Food Processing: Taking accurate temperature readings without
direct contact with the food or packaging material.

The IR thermometer provides information at a glance — the custom
backlit dual digital LCD displays both current and minimum,
maximum, average or differential temperatures. This versatile
instrument provides:

• Measurable target distances from 5 inches to approximately 100
feet

• Emissivity adjustable from 0.1 to 1.00 in 0.01 steps provides ease
of use when measuring a variety of surfaces.

• Built-in Laser sighting in Circle & Dot configurations.

• Thermocouple input available.

• Distance Measurement available, either field mountable or built­in.

• Digital/Video Camera Option available

• An electronic trigger lock feature set via the keypad allows
continuous temperature measurement up to 10 times per second.

• Audible and visual alarms. The high and low alarm points
are set via the keypad.

• 1 mV per degree (°F or °C) analog output, which allows
interfacing with data acquisition equipment (including
chart recorders, dataloggers and computers). OS524E provides 0.5
mV/Deg.

• Last temperature recall (Hold).

• Backlit display useful in low ambient light conditions.

• Powers from 4 AA size batteries or an ac adapter.

• RS232 serial communication to a PC or printer. This allows
downloading data for further analysis.

• Ambient target temperature compensation. This provides more
accuracy for measuring low emissivity targets.

• Record up to 800 temperature data points. Review the recorded
data on the thermometer LCD, as well as downloading the data
to a PC.

General Description

1

1-2

The thermometer is easy to use:

• Units have standard “V” groove aiming sights.

• Integral tripod mount permits hands-free operation, if necessary.

• Temperature readings are switchable from °F to °C via the keypad.

• Parameters, such as target material emissivity and alarm setpoints, can
be set and remain in memory until reset.

This instrument has a rugged and functional design, including:

• Sealed keypad display.

• Convenient trigger operation.

• Soft carrying case and wrist strap, for safety and ease of carrying.

• Rubber boot around the lens and the display.

Table 1-1. OS530 Series Handheld Infrared Thermometer Features

Features

OS530LE OS532E OS533E OS534E

Accuracy* ±1% rdg ±1% rdg ±1% rdg ±1% rdg
Range -10 to 1000°F -10 to 1000°F -10 to 1000°F -10 to 1600°F

-23 to 538°C -23 to 538°C -23 to 538°C -23 to 871°C
Emissivity adjustable adjustable adjustable adjustable
Backlit Dual Display standard standard standard standard
Distance to Spot

Size Ratio 10:1 10:1 20:1 30:1
Differential Temperature standard standard standard standard
Min/Max Temperature standard standard standard standard
Average Temperature standard standard standard standard
High Alarm standard standard standard standard
Thermocouple Input — standard standard standard
Audible Alarm

& Indicator standard standard standard standard
Analog Output 1mV/deg 1mV/deg 1mV/deg 1mV/deg
Built-in Laser Sighting dot/circle dot/circle dot/circle dot/circle
Trigger Lock standard standard standard standard
Last Temperature Recall standard standard standard standard
Low Alarm — — standard standard
Ambient Target

Temperature — — standard standard

Compensation

RS232 Interface — — standard standard
Data Storage — — — standard
Distance Measurement Optional
Digital Camera Optional

1-3

General Description

1

Features

OS530HRE OS530LE-CF OS533E-CF OS534E-CF

Accuracy* 3°F (1.7 °C) ±1% rdg ±1% rdg ±1% rdg
Range -22 to 250°F -10 to 1000°F -10 to 1000°F -10 to 1600°F

-30 to 121°C -23 to 538°C -23 to 538°C -23 to 871°C
Emissivity Adjustable Adjustable Adjustable Adjustable
Display Resolution 0.1°For 0.1°C 1°F or 1°C 1°F or 1°C 1°F or 1°C
Backlit Dual std std std std

Display
Field of view 20:1 0.15"@6" 0.15"@6" 0.15"@6"
Differential

Temperature std std std std
Min/Max

Temperature std std std std
Average

Temperature std std std std
High Alarm std std std std
Low Alarm --- --- std std
Audible Buzzer

& Indicator

std std std std

Ambient Target
Temp --- --- std std

Compensation

Analog Output 1 mV/Deg 1 mV/Deg 1 mV/Deg 1 mV/Deg
RS232 Output --- --- std std
Data Storage --- --- --- std
Built-in Laser Dot/Circle Dot Dot Dot

sighting
Trigger Lockstd std std std std
Last Temperature

Recall std std std std
Thermocouple

Input --- --- std std
Distance Optional Not Recommended

Measurement
Digital Optional

Camera

* The temperature accuracy is 1% of Rdg or 2ºC (3ºF) whichever is greater.

General Description

1

1-4

Distance to Spot Size Ratio

OS523E-1 30:1
OS523E-2 60:1
OS523E-3 68:1

** OS523E provides three field of views:

Features OS523E

**

OS524E

Accuracy ±1% rdg ±1% rdg
Range 0 to 2500°F 1000 to 4500°F

(-18 to 1371°C) (538 to 2482°C)
Emissivity adjustable adjustable
Backlit Dual Display standard standard
Distance to Spot Size Ratio varies** 110:1
Differential Temperature standard standard
Min/Max Temperature standard standard
Average Temperature standard standard
High Alarm standard standard
Low Alarm standard standard
Audible Alarm & Indicator standard standard
Ambient Target

standard standard

Temperature Compensation
Analog Output 1 mV/deg 0.5 mV/deg
RS-232 Output standard standard
Thermocouple Input ––– –––
Data Storage standard standard
Built-in Laser Sighting dot/circle dot/circle
Trigger Lock standard standard
Last Temperature Recall standard standard
Distance Measurement Optional
Digital Camera Optional

1.2 Parts of the Thermometer

1.2.1 Front of the Thermometer

Figure 1-1. OS530E/OS520E Series Handheld Infrared Thermometer Front View

The display is shown in more detail in Figure 1-2 and described in Table 1-2.

There are no user-serviceable parts in the thermometer.

Refer to Chapter 3 for Laser Sight information.

“V” Groove

Lens Rubber

Boot

Built-in

Distance Module

(Optional)

Distance

Powe r
Switch

Trigger

Battery

Compartment

Door

Tripod
Mount

Digital/Video
Camera
(Optional)

Display
Rubber
Boot

Backlit
LCD

Wrist
Strap

1-5

General Description

1

General Description

1

1-6

Figure 1-2.

Display and

Keypad View

Table 1-2. Display Details

Key Description

➀

Display Mode displays one of the following:

E (Emissivity) AVG (Average Temperature)
d_F (distance in Feet) HAL (High Alarm Setpoint)

d_M (Distance in Meters) TC (Thermocouple Input)

LSR (Laser either flashing or continuous) LAL (Low Alarm Setpoint)
MAX (Maximum Temperature) AMB (Ambient Target Temp)
MIN (Minimum Temperature) PRN (Send Data to PC)
dIF (Differential Temperature) MEM (Store Individual Temperature Data)
LOG (Log Temperature Data)

➁

Data associated with one of the Display Modes

➂

Backlighting Icon - allows the display to be viewed under low ambient light

➃

Displays the units of measure in either °F or °C

➄

Main display - displays the current temperature

➅

Locks the trigger / Enables or Disables alarms/Resets MAX, MIN, Dif, Avg. Temps

➆

for incrementing data; and is for turning on/off the display backlighting

➇

for decrementing data; and is for changing the units of measure from °F to °C or vice

versa

➈

Function key for scrolling through the display modes

➉

Display Icons

Trigger Lock Low Alarm

Ambient Target Low Battery

High Alarm Data Transfer thru

RS232

Laser Power Indicator LED

F

C

FUNC LOCK

®

F

C

OMEGASCOPE

®

LCK

HAL

LOBAT

ATC

LAL

PRN

°F °C

1

11

10

9

8

7

6

5

4

3

2

1-7

General Description

1

Figure 1-3 shows the various jacks for analog output, thermocouple input
and the ac adapter to the thermometer. The figures also show the location of
the Laser Power Switch, Dot-Circle Switch, and Laser Beam Aperture. More
details are provided in Section 2.2.1.

Figure 1-3. OS530E/OS520E Series Handheld Infrared Thermometer

Various Views

Laser

Dot/Circle

Switch

Laser
Power
Switch

Distance

Power

Switch

Laser Beam
Aperture

Thermocouple Input
Socket (SMP)
(standard on OS532E,
OS533E, OS534E)

ac Adapter Input Jack

Analog Output Jack (1mV/deg)

RS-232 Phone Jack
(standard on OS533E,
OS534E, OS523E, OS524E)

General Description

1

1-8

Notes

2-1

Using the Handheld Infrared Thermometer

2

2.1 How to Power the Thermometer

2.1.1 Battery Operation

Invert the thermometer and install 4 fresh AA size batteries as shown in
Figure 2-1. Make sure the batteries’ polarities are correct, the batteries are
not put in backwards, and are of the same type.

If the icon flashes, the batteries must be
replaced with fresh batteries immediately.

Figure 2-1. Installing the Batteries

2.1.2 ac Power Operation

The thermometer may be operated on ac power using the optional
universal 100/240 Vac adapter. When operating on ac power the batteries
supply backup power in case of ac power failure. The ac adapter input jack
is shown in Figure 1-3.

NOTE

C

F

FU

NC LOC

K

®

A
TC

LC

LAL

K

H

PR

A

L

N

°

L

F

O

°

B

C

A

T

OME

G

A

S

COPE

®

Using the Handheld Infrared Thermometer

2

2-2

2.2 Operating the Thermometer

1a. (Without the Laser Sighting) -Aim the thermometer at the target to

be measured. Use the “V” groove (shown in Figure 1-1) on top of
the thermometer to align the target to the thermometer’s field of
view. Look down the “V” groove with one eye only, in order to
guarantee proper sighting. Pull and hold the trigger.

1b. (With the Laser Sighting) - Set the laser power switch to the

ON position. Aim at the target and pull the trigger. The laser
beam and the red power indicator LED will turn on while the
trigger is pulled. Refer to Chapter 3 for more details on the Laser
Sighting.

2. The field of view of the thermometer should fall within the area
of the target being measured as shown in Figure 2-2. Figures 2-3
through 2-9 show the field of view vs distance for the various
thermometers.

Figure 2-2. Field of View Positions

Figure 2-3. Field of View OS532E, OS530LE

SPOT DIA. * (IN)

SPOT DIA. * (CM)

Field of View

Target

(ACCEPTABLE)

(UNACCEPTABLE)

2-3

Using the Handheld Infrared Thermometer

2

** Measurement distance is from the outside surface of the rubber boot.

4.8"

1.0" @ 0" to 20"

2.5cm @ 51cm

1.2"

1.0"

2.5

6.0

4.0

8.0

10.0

12.2

1601208040

1.0"

1.8"

2.4"

3.0"

3.6"

4.2"

1' 2'

200

8'6'

0**

DISTANCE: SENSOR TO OBJECT (FT)

DISTANCE: SENSOR TO OBJECT (CM)

SPOT DIA.* (IN)SPOT DIA.* (CM)

*SPOT DIAMETER MEASURED

AT 90% ENERGY

D:S = 20:1

4'

244

3' 5' 7'

20"

Figure 2-5 Field of View OS534E, OS523E-1

Figure 2-4 Field of View OS533E, OS530HRE

Using the Handheld Infrared Thermometer

2

2-4

Figure 2-7 Field of View OS523E-2

Figure 2-6 Field of View OS53xE-CF

DISTANCE: SENSOR LENS TO OBJECT (in.)

0

3"

6"

9"12"

15"

SPOT DIA.* (IN)

0.9"

22

0

SPOT DIA.* (MM)

.45"

11.5

*SPOT DIAMETER MEASURED

AT 90% ENERGY

7.6

0'

0.9"@ 0

SPOT DIA.* (IN)

0.9"

30.5

.78"

D:S = 40:1

19.9

38.1

1.9"

.15"

3.9

15.2

DISTANCE: SENSOR LENS TO OBJECT (cm.)

DISTANCE: SENSOR TO OBJECT (FT)

3'

1.0"

.39"

9.9

22.9

5'

1.2"

1.17"

29.9

16'10'

2.9"

26

22mm @ 0

*SPOT DIAMETER MEASURED

AT 90% ENERGY

0

SPOT DIA.* (MM)

1.0 3.01.5

31

DISTANCE: SENSOR TO OBJECT (M)

D:S = 60:1

48

75

5.0

2-5

Using the Handheld Infrared Thermometer

2

Figure 2-8 Field of View OS523E-3

Figure 2-9 Field of View OS524E

DISTANCE: SENSOR TO OBJECT (FT)

0’

3’

16’10’2’ 5’

SPOT DIA.* (IN)

SPOT DIA.* (MM)

.35"@ 24"

.8"

21

9mm @ 610mm

*SPOT DIAMETER MEASURED

0

.9"

AT 90% ENERGY

.61

1.0

DISTANCE: SENSOR TO OBJECT (M)

1.6"

22

42

1.5

DISTANCE: SENSOR TO OBJECT (FT)

0' 16' 82'50'

0.5"@ 0

SPOT DIA.* (IN)

0.9"

1.5"

5.1"

4.0"

101

3.0

7.0"

181

5.0

8.7"

38

13mm @ 0

*SPOT DIAMETER MEASURED

AT 90% ENERGY

0

SPOT DIA.* (MM)

5 15

DISTANCE: SENSOR TO OBJECT (M)

130

D:S = 110:1

221

25

Using the Handheld Infrared Thermometer

2

2-6

3. The target temperature and emissivity are displayed on the LCD.

Determine the emissivity of the target (refer to Appendix B). Press the

key to increment the target emissivity. Press the key to

decrement the target emissivity.

4. Press the key to lock the trigger. The icon will appear

on the display. This allows the thermometer to operate continuously
whether or not the trigger is pulled. To unlock the trigger, press the

key again or pull the trigger twice. The icon is no longer
displayed. When the trigger is pulled, the Laser Sighting as well as the
display backlight will stay on .

5. After completing a temperature measurement, release the trigger.
In order to conserve battery life, the thermometer goes into sleep
mode and the Laser Sighting turns off.

LOCK

LOCK

F

C

2.2.1 Measurement Techniques

You can use the IR Thermometer to collect temperature data in any
one of five different ways:

• Spot Measurement — Measures the temperature of discrete objects

such as motor bearings, engine exhaust manifolds, etc.:

1. Aim at the desired target and pull the trigger.

2. If necessary, adjust the emissivity using the and
keys.

3. Read the temperature.

• Differential Measurement — Measures the temperature differential
between two spots (the maximum and minimum temperatures
viewed)

1. Aim the thermometer at the first spot and pull the trigger. Press
the key to lock the trigger.

2. If necessary, adjust the emissivity.

3. Aim at the second spot.

4. Adjust the emissivity of the second spot if required.

5. To display the differential temperature, press the key until
“dIF” appears on the display.

6. Read the differential temperature from the upper display.

7. Press the key to unlock the trigger.

LOCK

FUNC

LOCK

F

C

2-7

Using the Handheld Infrared Thermometer

2

• Static Surface Scan – Measures the temperature across a static
surface:

1. Aim the thermometer at a starting point and pull the trigger.
Press the key to lock the trigger.

2. If necessary, adjust the emissivity.

3. Slowly move the thermometer so that the line of sight sweeps
across the surface. The thermometer measures the temperature
at each point on the surface.

4. To record the temperature profile across the surface, connect
the IR thermometer to a strip chart recorder. Refer to Figure
2-11 for details. The IR thermometer provides an analog output
of 1mV/degree. (0.5 mV/Deg on OS524E)

5. After all the data has been taken, press the key to unlock
the trigger.

Figure 2-11 Recorder Hookup

• Moving Surface Scan - Measures the Temperature of Points on a

Moving Surface:

1. Mount the thermometer on a camera tripod and aim at a fixed
point on the moving surface.

2. Pull the trigger and press the key to lock the trigger.

3. If necessary, adjust the emissivity. The thermometer is now set
up for measuring the temperature of a moving surface.

4. To record the temperature profile of the moving surface,
connect the IR thermometer to a strip chart recorder. Refer to
Figure 2-11 for details.

5. After all data is taken, press the key to unlock the trigger.

• Fixed Point Monitoring Over Time - Monitors the temperature at
a fixed point over time:

It is recommended that you use the ac adapter for long
term measurement of temperature.

LOCK

LOCK

LOCK

LOCK

NOTE

NOTE
Center hole is the
analog output jack

Analog

Cable

To Strip Chart

Recorder

Using the Handheld Infrared Thermometer

2

2-8

1. Mount the thermometer on a camera tripod and aim at the
target.

2. Connect the analog output of the thermometer to a strip chart
recorder as shown in Figure 2-11.

3. Pull the trigger and press the key to lock the trigger.

4. If necessary, adjust the emissivity.

5. The thermometer is now set up for unattended monitoring of
temperature over time. You can also download the temperature
to a Serial Printer or a PC for further analysis (Models OS533E,
OS534E, OS523E, OS524E).

6. After all data is taken, press the key to unlock the trigger.

2.3 Real Time Mode (Active Operation)

Definition: Real Time Mode is the active operational mode of the
thermometer. In this mode, the thermometer constantly measures
and displays temperature.

Figure 2-12. General Operational Block Diagram

LOCK

LOCK

FUNC

2-9

Using the Handheld Infrared Thermometer

2

Table 2-1. Functional Flow Chart when the Trigger is Pulled (Real Time Mode)

Press to... to...

Press or to...

FUNC

LOCK

F

C

F

C

DISPLAY

MODE:

Press

Display shows:

Emissivity

Go to

Set Emissivity

Current temperature Lock or unlock

Distance (feet or meter)

Go to

Trigger LCK

Current temperature

Laser status

Go to

Set laser to

Current temperature Flashing or On

Maximum temperature

Go to

Press to turn on/off

Current temperature LCD backlight

Minimum temperature

Go to

Current temperature Reset Maximum, Press to change

Differential temp

Go to

Minimum, Diff.

from °F to °C or feet to meter

Current temperature

Average temps and vise versa

Average temperature

Go to

Current temperature

High alarm set point

Go to

Enable/Disable

Set High Alarm set point

Current temperature HAL

Thermocouple temp

Go to

–––––– Turn on LCD Back lite

Current temperature Change °F to °C

Low alarm set point

Go to

Enable/Disable

Set Low Alarm set point

Current temperature LAL

Ambient target temp

Go to

Enable/Disable

Set Ambient Target temp

Current temperature ATC

Data Trans. Interval

Go to

Enable/Disable

Set Data Transmission

Current Temperature PRN interval (Logging)

Memory location

Go to Store temp data –––

Current temperature

Logging

Go to

Turn on/off

–––

Current temperature Logging

Real Time Modes

NOTE: The unit of measure (°F or °C) flashes during Real Time Mode.

OS530LE, OS530HRE

OS532E

OS533E

OS534E, OS523E, OS524E

Figure 2-13. Visual Function Flow Chart

* While in these 7 modes:

Use key to change temperature from °F to °C or vice versa.

Use key to turn on the display backlighting.

*

*

*

*

*

*

*

Using the Handheld Infrared Thermometer

2

2-10

MODE MODEDISPLAY DISPLAY

LCK

LCK

FUNC

☞

LCK

LCK

HAL

FUNC

☞

LCK

(Models OS530LE,

OS530HRE)

FUNC

☞

LCK

☞

LCK

☞

LCK

FUNC

FUNC

FUNC

☞

LCK

LCK

☞

LCK

ATC

☞

LCK

☞

LAL

☞

FUNC

(Model OS532E)

FUNC

FUNC

PRN

FUNC

(Model OS533E)

☞

FUNC

LCK

LCK

FUNC

☞

FUNC

☞

(Models

on

LCK

FUNC

☞

OS534E,
OS523E,
OS524E)

F

C

2-11

Using the Handheld Infrared Thermometer

2

2.3.1 Adjusting Emissivity

Refer to Appendices B and C for information on emissivity.

1. Determine the emissivity of the target.

2. Aim at the target and pull the trigger.

3. If necessary, press the key to increment the target emissivity
or press the key to decrement the target emissivity.

The Emissivity Display Mode (E) appears every time the
trigger is pulled regardless of how the Display Mode was
previously set.

The emissivity setting does not change when the
thermometer is turned off. However, when the batteries are
replaced, the emissivity is reset to 0.95, the default value.

2.3.2 Using the LOCK Function

This function electronically locks the trigger mechanism:

1. Pull the trigger and press the key to lock the trigger in the Emissivity
and Distance Display Mode. The icon will appear on the display.

2. Release the trigger. This allows the thermometer to operate
continuously whether or not the trigger is pulled.

To unlock the trigger function, while in Emissivity and

Distance Display Modes press the key again, and

the icon is no longer displayed.

The key also enables/disables alarm functions, and resets
calculated temperature values (MAX, MIN, dIF, AVG).

2.3.3 Using the Trigger Function

Besides turning on the thermometer by pulling the trigger, you can
lock the trigger electronically by pressing the trigger button twice.
The

icon is displayed. You can unlock the trigger by pressing the

trigger button twice again.

NOTE

NOTE

NOTE

°F

F

C

LOCK

LOCK

LOCK

2.3.4 Using the Distance Function

• There should be a clean, open line of sight from the distance
device to the target, otherwise an erroneous reading will result.

• For accurate distance measurement readings, the surface
must be hard, flat, and reflective to ultrasonic pulse.

• Distance measurement can not be taken through glass, or
off of soft and padded surfaces, or through smoke or fog.

• The distance measurement unit must be held perpendicular
to the target surface.

• The distance measurement unit is designed for indoor use only.

• Accuracy of the distance measurement unit will vary
depending on environmental conditions.

• Do not aim the distance measurement unit at a person.

The thermometer provides distance measurement as an option. This function
is either built-in or field mountable. The field mountable version (HH-DM)
mounts on top of the thermometer and is a stand-alone device. It operates
independently of the thermometer. Model HH-DM operates from a 9Vdc
battery. Press the key to measure distance. Press and hold the key
for about 2 seconds to convert distance from Feet to Meters or vise versa. Press
the same key to turn off the device or it will turn itself off in about 7
minutes.

Figure 2-14. Figure 2-15. Infrared Thermometer With

Model HH-DM Distance Meter Built-in Distance Measurement (-DM)

Using the Handheld Infrared Thermometer

2

2-12

CAUTION

Distance

Power Switch

LCK

C

OFF

OFF

C

Using the Handheld Infrared Thermometer

2

2-13

The built-in version (-DM) is an integal part of the
thermometer, and distance measurment is made using the
thermometer's keypad. Go to the d_F or d_M display
menu. There is a slide power switch on the side of the
distance module housing. Make sure the power switch is
ON. Pull the trigger for about 2 seconds, and the upper
display will show the distance to the target either in Feet or
Meter. Releasing the trigger will turn off the distance
measurement, and distance value will stay on for about 3
seconds. Pressing the key will convert the distance
value from Feet to Meters and vise versa.

Do not operate the built-in distance module and laser sighting at
the same time while operating from the batteries. It places a heavy
load on the batteries.

Figure 2-16. Field of View of Built-in Distance Module

NOTE

LCK

18.0"

2"@ 0

12.0"

5 @ 0

7.0"

5.0"

18

13

30

46

0'

3'

16'10'

D:S = 10:1

5'

5.0

0

1.0 3.01.5

F

C

DISTANCE MODULE TO OBJECT (FT)

BEAM DIA.* (IN)

BEAM DIA.* (CM)

DISTANCE MODULE TO OBJECT (M)

Using the Handheld Infrared Thermometer

2

2-14

Figure 2-17. Field of View of Distance Meter HH-DM

Figure 2-18. Line of Sight of the Infrared Thermometer

vs. Distance Meter and Built-in Module

DISTANCE METER TO OBJECT (FT)

0'

0.5"@ 0

BEAM DIA.* (IN)

3'

10.0"

6.0"

DISTANCE MEASURING

REFERENCE LINE

HH-DM

®

15

1.2 @ 0

5'

16'10'

30.0"

18.0"

D:S = 6.5:1

25

46

76

0

BEAM DIA.* (CM)

1.0 3.01.5

DISTANCE METER TO OBJECT (M)

Distance Meter HH-DM

2" (50 mm)

Distance Meter Line of Sight

Optical Line of Sight

Built-in Distance Module Line of Sight

2" (50 mm)

Built-in distance Module

5.0

2.3.5 Laser Sighting Status

In the LSR display menu, the status of the laser sighting is shown
either as Flashing (FLS) or continuous (on). Pressing the key will
change the status from flashing to continuous and vise versa. There is
a slide laser power switch on the left side of the thermometer's case.
Set the power switch to ON position, and pull the trigger. The laser
beam will turn on (either flashing or continuous depending on the
status) as long as the trigger is pulled. Releasing the trigger will
automatically turn off the laser beam.

2.3.6 Calculating Temperature Values

The thermometer calculates the MAX, MIN, dIF, and AVG
temperatures based on the current temperature.

°F

°F

°F

is the maximum temperature since
the temperature measurement
session starts (pulling the trigger).

is the minimum temperature
since the temperature
measurement session starts.

is the difference between
the MAX and MIN
temperatures.

is the true average temperature since the temperature
measurement session starts. The average temperature under
continuous operation is accurate for a limited period of time
(refer to the specifications). However, the AVG temperature
function can be used indefinitely when the thermometer is
operating intermittently.

Using the Handheld Infrared Thermometer

2

2-15

To clear the “AVG ---” display, press the key to reset or turn off the
thermometer.

Every time the thermometer goes from the sleep mode to the
Real Time mode (by pulling the trigger) or pressing the key
(see Table 2-1) the MAX, MIN, dIF, and AVG values are reset.

“AVG ---” is displayed when either of the following conditions occur:

1. When the average temperature measurement reaches its time

period as stated in the specifications.

2. When the thermometer is trying to measure a target temperature

which is outside of its measuring temperature range. At this time
the corresponding MAX, MIN, dlF parameters shows _ _ _.

NOTE

°F

LOCK

°F

LOCK

LOCK

Using the Handheld Infrared Thermometer

2

2-16

2.3.7 Changing the Temperature from °F to °C (or vice
versa)

During the time the thermometer displays either d_F, d_M, MAX,
MIN, dIF, AVG or thermocouple temperature, press the key to
change all the temperatures from °F to °C or vice versa.

2.3.8 Turning on the Display Backlighting

During the time that the thermometer displays either d_F, d_M,
LSR, MAX, MIN, dIF, AVG, or TC temperatures, press the key
to turn the display backlighting ON/OFF.

2.3.9 Thermocouple Input (OS532E, OS533E, OS534E)

The thermometer accepts thermocouple input. It displays
thermocouple temperature and the target temperature (via
infrared) simultaneously. This function provides an accurate
method of determining an unknown emissivity.

• To Determine an unknown target emissivity

1. Connect a contact thermocouple probe (Type K) to the
thermometer as shown in Figure 1-3.

2. Measure the object temperature using the thermocouple

probe.

3. Aim at the object and measure the temperature via infrared.

4. Press and hold the key until the Emissivity Display

mode (E) appears.

5. Set the emissivity by pressing the or keys until
the temperature reading matches the thermocouple
temperature measurement.

6. The thermometer now displays the correct object

emissivity.
"TC--- is” is displayed when the thermocouple

input is open or out of range (0 to 1600°F).

F

C

LCK

°F

FUNC

F

C

2-17

Using the Handheld Infrared Thermometer

2

2.3.10 Using the Alarm Functions

The thermometer provides audible and visible alarm
indications.

• To set the high alarm value:

1. Pull the trigger. Then press and hold the key until
the High Alarm Display Mode (HAL) appears.

2. Press the key to increment the high alarm value. Press

the key to decrement the high alarm value.

3. Press the key to enable the high alarm function. The

icon appears.

If the temperature exceeds the high alarm setpoint,

you will hear a beep and the icon on the

display flashes.

4. To disable the high alarm, press the key again,
and the icon disappears.

If you are not in High Alarm Display Mode (HAL) when

the high alarm goes off, you must press the key to

get into the High Alarm Display Mode. Then press the

key to disable the high alarm.

LOCK

FUNC

LOCK

LOCK

F

C

FUNC

NOTE

°F

HAL

Using the Handheld Infrared Thermometer

2

2-18

The high alarm setpoint does not change when the
thermometer is turned off. However, when the
batteries are replaced, it is reset to the default value
as follows:

OS530HRE: 250°F
OS530LE, OS532E, OS533E: 1000°F
OS534E: 1600°F
OS523E: 2500°F
OS524E: 4500°F

• To set the low alarm value: (OS533E, OS534E, OS523E,
OS524E):

1. Pull the trigger. Then press and hold the key until
the Low Alarm Display Mode (LAL) appears.

2. Press the key to increment the low alarm value. Press

the key to decrement the low alarm value.

3. Press the key to enable the low alarm function. The

icon appears.

If the temperature drops below the low alarm

setpoint, you will hear a beep and the icon on

the display flashes.

4. To disable the low alarm, press the key again, and
the icon disappears.

If you are not in Low Alarm Display Mode (LAL)
when the low alarm goes off, you must press the
key to get into the Low Alarm Display Mode.Then
press the key to disable the low alarm.

The low alarm setpoint does not change when the
thermometer is turned off. However, when the
batteries are replaced, it is reset to the default value
of -10°F (0° F for OS523E and 1000°F for OS524E).

LOCK

FUNC

LOCK

LOCK

F

C

FUNC

NOTE

NOTE

NOTE

LAL

°F

2-19

Using the Handheld Infrared Thermometer

2

2.3.11 Using Ambient Target Temperature
Compensation
(OS533E, OS534E, OS523E, OS524E)

Use the Ambient Target Temperature Compensation

(AMB) Display Mode when high accuracy readings under both

of these conditions are required:

• The target has a low emissivity.

• The ambient temperature around the target is much
higher than the ambient temperature around the
infrared thermometer.

To set and activate the Ambient Target Temperature
Compensation Mode:

1. Pull the trigger and press the key to lock the
trigger. Set the emissivity to 1.0 (refer to Section 2.3.1).

2. Press and hold the key until the Average Display
Mode (AVG) appears.

3. Slowly move the thermometer so that the line of sight
sweeps across the area surrounding the target. The
thermometer measures the temperature at each point on
the surrounding area.

4. Read the average temperature value from the upper
display and record it here __________.

5. Press and hold the key until the Ambient
Temperature Display Mode (AMB) appears.

6. Set the AMB temperature found in Step 4 by pressing the

key or the key.

7. Press the key to enable the ambient target

temperature compensation. The icon appears

on the display.

To disable this mode, press the key again.

The icon disappears.

LOCK

LOCK

F

C

FUNC

FUNC

LOCK

NOTE

AT C

°F

Using the Handheld Infrared Thermometer

2

2-20

8. Press and hold the key until the Emissivity Display
Mode (E) appears.

9. Change the emissivity to the proper value for the target
being measured (refer to Section 2.3.1).

10. Aim at the target. The target temperature and emissivity
are displayed on the LCD.

11. After all data is taken, press the key to release
this mode

To disable the Ambient Target Temperature

Compensation at a later time, you must press the

key to get into the Ambient Target

Temperature Display Mode. Then press the

key to disable it.

The target ambient temperature does not change
when the thermometer is turned off. However,
when the batteries are replaced, it is reset to the
default value of 75°F.

2.3.12 PC Interface Software (OS533E, OS534E,
OS523E, OS524E)

Software Installation:

In order to install the PC interface software (IRTM), the PC should have the
following minimum requirements:

Operating System: Windows 98SE, 2000, NT4.0, XP

32 MB RAM

Hard disk with a minimum of 20 MB free space

Place the CD into the CDROM drive. Click Start Run… from the start
menu. Click Browse to find setup program from the CD and then click OK
to run setup program. The setup program will guide you through the
installation process.

LOCK

FUNC

LOCK

FUNC

NOTE

°F

ATC

NOTE

2-21

Using the Handheld Infrared Thermometer

2

Sending temperature data to PC in Real Time:

1. From Windows Operation System, Go to Start Program Omega
Infrared Temperature Measurement IRTM then click.

2. Check the RS232 connection between the infrared thermometer and the
PC. Select your serial COM Port number from the Communication Port
Setting menu on the menu bar. Turn on the infrared thermometer by
pulling & locking the trigger. From the program screen, click the Start
button. This initiates data transmission from the thermometer to the PC.

The data will fill in the screen as shown. If no data appears, you need to check
the COM port number or the RS232 connection. Here is a list of data sent:

Current Temperature = 74ºF

Distance=Unknown (Until distance measurement is made)
E=0.95 (Emissivity) HAL=1000ºF

(High alarm set point)

MAX = 85ºF LAL = -10ºF
(Maximum Temperature) (Low alarm set point)

MIN = 72ºF TC = 76ºF
(Minimum Temperature) (Thermocouple temperature)

DIF = 13ºF PRN = 2 second
(Differential Temperature) (Data Transmission interval)

AVG = 73ºF AMB = 75ºF
(Average Temperature) (Target Ambient temperature)

You can also start the data transmission from the thermometer side by
going to the PRN display menu, and pressing the key. The
icon will appear on the LCD and data transmission starts. You can stop the
data transmission from the PC side by clicking the Stop button. You can also
stop the data transmission from the thermometer side by pressing the
key again while in the PRN display menu. The icon will disappear
from the LCD, and data transmission stops.

LOCK

LOCK

Using the Handheld Infrared Thermometer

2

2-22

The transmitted temperature data is the average temperature for
the specified data transmission interval. The data transmission
interval (PRN) can be set any where from 1 to 1999 seconds.

You can save the data into a file by going into the File menu.

Download Stored Temperature data to PC

• Run the IRTM program.

• If you are already in the IRTM program and sending temperature data
from the thermometer to the PC in real time, click the Stop button to stop
data transmission.

• Go to Tool menu, and click on Download stored temperature data.

• A new Download Storage Data Window will pop up, and stored data will
fill in.

• When downloading data is complete, you will hear a beep.

• You can save this data into a file by going to the File menu of this
window. Data can be saved as an Excel, Text or data file format.

• You can also Erase the stored data in the thermometer by going to File
menu, and click on Erase stored data at thermometer.

• You can exit or close this window and go back to the previous window.

Communicating through Hyper terminal

You can get temperature data in real time or download stored data to
Hyper terminal of the PC as follows:

• From Start ➜ Programs ➜ Accessories ➜ Hyper terminal

• Create a name for your communication

• Set the communication settings as follows (In the Properties menu):

- COM port (1,2,3)

- Baud rate (9600)

- Data Bits (8)

- Parity (None)

- Stop bit (1)

- Flow control (None)

If you are sending data in real time, pull & lock the trigger on the
thermometer. Press FUNC key until reaching the PRN display mode. Press
the LOCK key to start data transmission to the PC. The LOCK icon will
appear on the thermometer’s LCD.

If you are downloading stored temperature data, press the FUNC key on
the thermometer to go to the Recall mode until reaching the PRN display
mode. Press the LOCK key to start the data download. When the data
download is complete, you will hear a beep.

NOTE

2-23

Using the Handheld Infrared Thermometer

2

Menu Description

File

Save Data As...

Save the collected temperature data in one of the formats:
Excel File (.xls), Text File (.txt), Data File (.dat)

Exit

View

Show (Hide) Data File

Show or Hide the Data Table on the screen. The data
table shows the last 10 temperature data points.

View All

Show the data table and parameter settings

Shrink All

Hide the data table and parameter settings

Do you want

to save your

temperature data?

Cancel

No

Exit the program
without saving data

Ye s

Save the data then
Exit the program
Go back to Program

Using the Handheld Infrared Thermometer

2

2-24

Tool

Stop Data Transmission to Change Parameters

Stop data transmission to be able to change parameter settings
like E, HAL, LAL, etc. Any change of parameter settings will reflect
on the thermometer's display. When done with parameter settings,
click the Start button to restart data transmission.

Change Temperature Display between °F<-> °C

You can change the temperature display from °F to °C or
vise versa. It gets reflected on the thermometer's display as well.

Reset MAX, MIN, DIF, and AVG Temperatures

Reset the MAX, MIN, DIF, AVG temperatures which will get
reflected on the thermometer's display.

Download stored temperature data

File

Save as
Erase the stored data from thermometer

Ta bl e

Exit

Resume Data Storage

Continue saving temperature data in the table.

Pause Data Storage

Pause saving temperature data in the table.

Clear data

Delete the saved data from the table.

Communication Port Setting

COM1

COM2

COM3

Select an available serial

port on your PC.

COM4

Help

°F <-> °C Calculator

Convert temperature Engineering unit from °F to °C or vise versa.

About IRTM

Shows the software version & copyright information.

2-25

Using the Handheld Infrared Thermometer

2

2.3.13 PC Interface Commands

You can communicate directly from the PC to the infrared thermometer. Here
are the Comm port settings and communication commands from the PC:

Baud rate: 9600
Data: 8 Bits
One Stop Bit
No Parity

All the PC commands to the infrared thermometer are case sensitive and
terminates with a carriage return (CR). You can change parameter settings
from the PC when data transmission is stopped.

Here is a typical data strings from the infrared thermometer to the PC when
the “T” command is activated:

OS534; E:95; MAX:78; MIN:65; DIF:13; AVG:72; DIS:1144; HAL:900; TC:74;
TEF:0;

LAL:20; AMB:125; PRN:5; PRNF:1; IR:73; CF:0; FF:1; LF: 0:

End

Command Description
(ASCII)

IR Get the current infrared temperature from the thermometer
T Start sending Data stings from the thermometer to the PC
P Stop sending data to the PC
S Reset Min, Max, Diff, Avg temperature values on the thermometer
F1 or F0 F1 = Set Engineering unit to °F , F0 = Set Engineering unit to °C
E95 Set Emissivity to 0.95 (Thermometer sends “E:95” back as

confirmation)

H500 Set High Alarm set point (HAL) to 500 (It sends “HAL:500” back as

confirmation)

L20 Set Low Alarm set point (LAL) to 20 (It sends “LAL:20” back as

confirmation)

A125 Set Target ambient temp (AMB) to 125(It sends “AMB:125” back as

confirmation)
t Get the data transmission interval (PRN) from thermometer
t5 Set data transmission interval (PRN) to 5 seconds. Thermometer sends

back “PRN:5” as confirmation.
p Get the data transmission flag from the thermometer.

PRNF:0 means no data transmission (PRN is disabled)

PRNF:1 means data transmission (PRN is enabled)
D0 Start to download stored data from IR thermometer memory
De Erase the data from the IR thermometer memory

Using the Handheld Infrared Thermometer

2

2-26

String Description

E:95; Emissivity is 0.95
MAX:78; Maximum temperature is 78
MIN:65; Minimum temperature is 65
DIF:13; Differential temperature is 13
AVG:72; Average temperature is 72
DIS:1144; Distance is 11.44 feet (always in feet)
HAL:900; High alarm set point (HAL) is 900
TC:74; Thermocouple temperature is 74
TEF:0; Thermocouple temp over-range flag (0: In range, 1: Out of range)
LAL:20; Low alarm set point (LAL) is 20
AMB:125; Target ambient temperature is 125
PRN:5; Data transmission interval is every 5 seconds
PRNF:1; PRN Flag (0: PRN disabled, No data transmission, 1: PRN enabled,

Data communication active)
IR:73; Current Infrared temperature is 73
CF:0; Temperature engineering unit (CF:1 in Degree C, CF:0 in Degree F)
FF:1; Temperature engineering unit (FF:1 in Degree F, FF:0 in Degree C)
LF:0 Temperature over range flag

xxxx0xxx : In Range, Top

xxxxIx xx : Out of Range, Top

xxxxx0xx : In Range, Bottom

xxxxxIxx : Out of Range, Bottom
End End of data string

2-27

Using the Handheld Infrared Thermometer

2

2.3.14 Storing Temperature Data on Command
(OS534E, OS523E, OS524E)

The thermometer can store up to 800 temperature data
points on command. This data is stored in the non-volatile
memory, so removing the batteries will not affect or erase
this data. To store temperature data:

1. Aim at the target and pull the trigger and press the

key to lock the trigger. The icon will appear

on the display.

2. If necessary, press the key to increment the target

emissivity or press the key to decrement the target

emissivity.

3. Press and hold the key until the Memory Display
Mode (MEM) appears.

4. Press the key to store the target temperature at the
memory location indicated. You will hear a beep to
verify that the data is stored. Then the memory location is
incremented by one.

5. After all data is taken, press and hold the key
until the Emissivity Display Mode (E) appears.

6. Press the key to unlock the trigger or pull the
trigger twice at any time.

LOCK

FUNC

LOCK

FUNC

F

C

LOCK

°F

Using the Handheld Infrared Thermometer

2

2-28

2.3.15 Logging Temperature Data in Real Time
(OS523E, OS524E,OS534E)

The thermometer can log temperature data in real time. The
logged data is stored in the non-volatile memory, so
removing the batteries will not affect or erase the data. The
data is logged based on the data recording interval (PRN)
which can be set anywhere from 1 to 1999 seconds. The
thermometer can log up to 800 data points. Therefore, the
logging period can be anywhere from 13 minutes (1 second
recording interval) up to 18.5 days (1999 second recording

interval). To log temperature in real time:

1. Aim at the target and pull the trigger. Press the key
or pull the trigger twice to lock the trigger. The
icon will appear on the display.

2. Press the or keys to adjust the Emissivity
value for the target.

3. Press the key until the display mode
appears.

4. Set the data recording interval (seconds) by pressing the

or keys.

5. Press the key until the LOG display mode appears.

6. Press the key to start logging temperature data in
real time. The display will show LOG on, and the unit starts
logging data based on the recording interval set in the

display menu. Press the key again, and the

unit stops logging data. The display will show LOG off.

7. After logging data, you can turn off the thermometer by
double clicking the trigger button. The icon will
disappear and the unit turns off.

LOCK

LOCK

FUNC

F

C

FUNC

F

C

LOCK

on

LCK

°F

2-29

Using the Handheld Infrared Thermometer

2

2.3.16 Erasing the Temperature Data from Memory

The user can erase all 800 temperature data points in
memory at any time by using the following procedure:

1. Pull the trigger and press the key. The
icon will appear.

2. Press the

key until reaching the MEM or LOG

disply mode.

3. Press the then keys in rapid sequence. The
display shows ERASE on the top and it will beep to
indicate that the stored data is erased.

Erasing the temperature data does not erase or
reset Emissivity, High and Low Alarm setpoints,
printing interval and Ambient Target Temperature
compensation

4. After all data is erased from memory, double click
trigger to unlock the trigger.

LOCK

FUNC

LOCK

NOTE

Using the Handheld Infrared Thermometer

2

2-30

2.4 Recall Mode (Passive Operation)

Definition: Recall Mode is the passive operational mode of
the thermometer. In this mode, you may review the most
recently stored temperature data and parameters.

Figure 2-19. General Operational Block Diagram

In order to get into the Recall Mode of operation,

press

the key only. Do not pull the

trigger; otherwise, you will get into the Real Time (Active)

Mode of operation.

FUNC

NOTE

(Table 2-1)

Pull Trigger

Start

Sleep

Mode

Display Turns Off

Approx. 5 Seconds

(Release

Trigger)

Real Time

Press

FUNC

Display Turns Off in

Approx. 5 Seconds

Mode (Active)

(No keys

pressed)

Recall Mode

(Passive)

(Table 2-2)

2-31

Using the Handheld Infrared Thermometer

2

Table 2-2. Functional Flow Chart (Recall Mode)

Press to... to...

Press or to...

LOCK

F

FUNC

– Disabled

– Changes

temperature

between

°F and °C

Send stored

data to PC

C

F

C

Emissivity

Go to

Last temperature

Distance (feet or meter)

Go to

Last temperature

Laser status

Go to

Last temperature

Maximum temperature

Go to

Last temperature

Minimum temperature

Go to

Last temperature

Differential temp

Go to

Last temperature Disabled

Average temperature

Go to

Last temperature

High alarm set point

Go to

Last temperature

Thermocouple temp

Go to

Last temperature

Low alarm set point

Go to

Last temperature

Ambient target temp

Go to

Last temperature

Data Trans. Interval

Go to

Last temperature

Disabled

Memory location

Go to

Display stored

Set Memory Location

Last temperature temp data

DISPLAY

MODE:

Press

Display shows:

Recall Modes

NOTE: The unit of measure (°F or °C) stays on (does not flash) during Recall Mode.

OS530LE, OS530HRE

OS532E

OS533E

OS534E, OS523E, OS524E

Using the Handheld Infrared Thermometer

2

2-32

2.4.1 Reviewing the Last Parameters

The thermometer stores the last temperature measured in

the real time mode (refer to Table 2-1). This temperature

can be recalled by pressing the key.

- Press the key to review the most recently stored

temperature data and parameters. You may review:

• MAX temperature

• MIN temperature

• dIF temperature

• AVG temperature

• TC temperature

• HAL temperature

• LAL temperature

• AMB temperature

• MEM location

FUNC

FUNC

Calculated values

Set values

2.4.2 Reviewing Previously Stored Temperature Data
(OS534E, OS523E, OS524E)

You can review all 800 stored temperature values on the
thermometer display using the following procedure:

1. Press and hold the key until you see the Memory
Display Mode (MEM) appear.

2. Press the key to increment the memory location or

press the key to decrement the memory location.

The memory location can be from 001 to 800.

3. Press the key. The stored temperature is shown in
the lower portion of the display. If there is no data stored
in a memory location, the display shows “----”.

If no keys are pressed, the thermometer goes into sleep
mode in approximately 5 seconds.

LOCK

F

C

FUNC

NOTE

°F

°F

3-1

Laser Sighting

3

3.1 Warnings and Cautions

You may receive harmful laser radiation exposure if you
do not adhere to the warnings listed below:

• USE OF CONTROLS OR ADJUSTMENTS OR
PERFORMANCE OF PROCEDURES OTHER
THAN THOSE SPECIFIED HERE MAY
RESULT IN HAZARDOUS RADIATION
EXPOSURE.

• DO NOT LOOK AT THE LASER BEAM
COMING OUT OF THE LENS OR VIEW
DIRECTLY WITH OPTICAL INSTRUMENTS ­EYE DAMAGE CAN RESULT.

• USE EXTREME CAUTION WHEN
OPERATING THE LASER SIGHTING.

• NEVER POINT THE LASER BEAM AT A
PERSON.

• DO NOT ATTEMPT TO OPEN THE
THERMOMETER. THERE ARE NO USER
SERVICEABLE PARTS INSIDE.

• KEEP OUT OF REACH OF ALL CHILDREN.

Refer to the inside back cover for product warning label.

CAUTION

Laser Sighting

3

3-2

3.2 Description

The Laser Sighting is built into the thermometer. It provides a visual
indication of the field of view of the thermometer. Aiming at distant
targets (up to 40 feet) becomes much easier by using the Laser
Sighting. It is offered in two different models, laser dot, and laser
dot/circle switchable. The Laser can be set to either flashing or
continous.

OS53x-CF and OS523-3 — Thermometer with built-in Laser Dot
All other models — Thermometer with built-in Laser Dot/Circle Switchable
Figures 3-1 and 3-2 show the side and front view of the thermometer with the

built-in laser sighting.

Figure 3-1. Right Side View

of the Thermometer

Figure 3-2. Left Side View

of the Thermometer

Laser

Dot/Circle

Switch

Laser
Power
Switch

Laser

Beam

Aperture

3-3

Laser Sighting

3

3.3 Operating the Laser Sighting

1. Set the laser power switch to the ON position as shown in
Figure 3-2.

2. Aim at the target and pull the trigger.

3. The laser beam and the red power indicator LED will turn on.
Refer to Figure 3-1 and Figure 3-2.

The laser beam will stay on as long as the trigger is pulled.
If the trigger is locked (the key is previously pressed) or
released, the laser beam will turn off. In order to turn on the
Laser Sighting, pull the trigger again.

4. Depending on the model, the laser dot/circle switch allows the user
to switch between laser dot and laser circle. The laser dot provides
visibility at longer distances.

Figure 3-3 shows the two different laser configurations. The laser
Dot indicates the center of the field of view of the thermometer.
The laser Circle indicates the perimeter of the thermometer’s field
of view.

The visibility of the laser beam depends on the ambient light levels.

3.4 Laser Sighting Status

In the LSR display menu, the status of the laser sighting is shown
either as Flashing (FLS) or continuous (on). Pressing the key will
change the status from flashing to continuous and vise versa. There is
a slide laser power switch on the left side of the thermometer's case.
Set the power switch to ON position, and pull the trigger. The laser
beam will stay on (either flashing or continuous depending on the
status) as long as the trigger is pulled. Releasing the trigger will
automatically turn off the laser beam.

Laser Dot Laser Circle

Figure 3-3. Two Laser Configurations

TM

LOCK

LOCK

The Laser Sighting turns on only when used with the
thermometer. The module does not turn on by itself.

The line of sight of the thermometer does not coincide with that of
the Laser Sighting, as shown in Figure 3-4. The two lines of sight
become less critical when measuring distant targets. For example, at
30 feet from the target and a 3 foot diameter target size, there is a

2.7% offset error with respect to the target size. For close-up targets,
first make sure the target fills the laser circle, then point it with the
center of the beam approximately 1" below the center of the target.
A simple method to make infrared measurements is to scan the laser
beam across the target area vertically and horizontally and recall
measurements of maximum for hot and minimum for cold target
(compared to the background) to obtain the correct temperature.

Figure 3-4 Lines of Sight of the Laser Sighting and Thermometer

Laser Sighting

3

3-4

NOTE

4-1

4.1 Sighting Scope

The Sighting scope is an accessory for the thermometer. It provides a visual
indication of the target being measured. Aiming at distant targets (up to 200
feet) becomes much easier by using the Sighting scope.

4.2 Installing and Operating the Sighting Scope

1. If the sighting scope is already installed on the thermometer,
go onto step 5.

2. The sighting scope comes with a pair of mounting clamps
already attached.

3. Slide the pair of mounting clamps over the ”V“ groove of the
thermometer from back to front as shown in FIG 4-1. DO NOT remove
the protective label from the laser sight power contacts.

4. Using the two mounting screws of the clamp, tighten the sighting scope
to the pair of clamps and the thermometer.

5. Look through the sighting scope at an arm’s length. You will see
a crosshair indicating the center of the target being measured.

6. Aim at the target and pull the trigger.

Since the sighting scope mounts on top of the thermometer, the line of
sight of the thermometer does not coincide with that of the sighting
scope, as shown in Fig. 4-1. The distance between the two lines of sight
(1

11

⁄16") becomes less critical compared to the target size when

measuring distant targets (50 feet and longer).

Sighting Scope

4

Sighting Scope

4

4-2

Pair of Mounting Clamps

Line of sight of

the sighting scope

Line of sight of

the thermometer

1 11/16 (42.8 mm)

Figure 4-1. Installing the Sighting Scope

5-1

Digital Video Camera

5

5.1 Camera Parts

5.2 Battery Installation

Your camera runs on two AA alkaline batteries. High performance batteries
are recommended for this camera for maximum battery life.

5.3 Turning Camera ON/OFF

Press and hold the MENU button for 3 seconds to turn on or off the camera.

5.4 Menu Selection

After turning on the camera, press MENU button to show MENU. To exit
MENU, select on LCD display. See Mode Selecting.

Rotate the wheel (MENU control) up or down to shift between modes.

Press the wheel to select mode.

(1) Shutter

(2) Lens

(3) Focus

(4) Mirror

(5) Microphone

(6) View finder

(7)

LCD display

(8) LED light

(9) Record button

(10) MENU button

(11)

USB port

(12) CF memory card slot

(13) AV-out port

(14) Eject ( CF Card)

(15) Strap-holder

(16) Speaker

(17) Battery cover

(18) Tripod port

(19) LCD power control

(20) Far field focus
(101.6 cm [40"] to infinity)

(21) Close field focus
(40-100 cm [16"-40"])

(1)

(2)
(20)
(3)
(4)

(18)

(21)
(5)

(15)

(16)

(17)

(6)

(7)

(14)

(8)

(9)

(10)

(11)

(12)

(13)

(19)

Digital Video Camera

5

5-2

(1)

(3)

(6)

(7)

(4)

(5)

(2)

(8)

(9)

(10)

Self-Timer

Voice Record

Erase All

Picture Quality

Format CF card

Battery Indicator

Picture Resolution

Playback

A/V out setting

Exit MENU

LCD Preview

Screen Page1

Screen Page2

LCD Preview

LCD Preview

N

For additional information please refer to the Digital Video Camera's manual
available on the accompanying CD.

6-1

Maintenance

6

6.1 Replacing the Batteries

When you change the batteries, all of the set parameters
(i.e. emissivity, high alarm, low alarm, Target Ambient
Temperature) will be reset to the default values. For your
convenience, you may want to write down all of the set
parameters BEFORE replacing the batteries.

The thermometer is powered by 4 standard AA size lithium
batteries. To replace the batteries:

1. Invert the thermometer and open the cover of the battery
compartment.

2. Remove the old batteries.

3. Install 4 fresh AA size (lithium or alkaline) batteries as shown in
Figure 2-1.

4. Close the battery compartment cover.

When the battery power is so low that accurate measurements
are no longer possible, you must replace the batteries
immediately.

You will see and hear the following:

• The icon flashes

• The thermometer beeps intermittently

• The thermometer flashes "_ _ _" in the main display.

Safety Warning

Do not open batteries, dispose of in fire, heat above
100°C (212°F), expose contents to water, recharge, put in
backwards, mix with used or other battery types – may
explode or leak and cause personal injury.

NOTE

NOTE

6

6-2

Maintenance

6.2 Cleaning the Lens

Although all lenses are quite durable, take care to prevent scratching
when cleaning them. To clean the lens:

1. Blow off loose particles, using clean air.

2. Gently brush off remaining particles, using a camel hair brush.
Alternatively, clean any remaining contaminants with a damp, soft,
clean cloth. Be careful not to rub too hard.

Do not use any ammonia or cleaners with ammonia on the lens,
as damage may result. Do not wipe the surface dry, as this may
cause scratching.

6.3 Calibrating the Thermometer

The thermometer can not be calibrated by the user. For precise
calibration of the thermometer, call our Customer Service
Department. It is recommended that the Infrared Thermometer
to be sent to the factory once a year for recalibration.

6.4 Servicing the Laser Sighting

Servicing and maintenance is not required to keep the laser
sighting in proper operating condition. In the event of a
malfunction, the unit should be returned to the manufacturer
for repair.

CAUTION

Troubleshooting Guide

7

THERMOMETER

Problem Solution

The thermometer does 1a. Properly install fresh batteries.
not turn on (No Display)

1b. If operating under ac power, check

that the ac adapter is plugged in
properly to the ac wall outlet and to the
thermometer.

1c. Make sure the batteries make good

contact - remove and reinstall the
batteries.

2. Make sure that the trigger is pulled
completely.

- The icon 1. Properly install fresh batteries.
flashes.

- The thermometer
beeps intermittently.

- The thermometer
flashes in the
Main Display.

7-1

Troubleshooting Guide

7

7-2

Problem Solution

The thermometer is Remove and reinstall the batteries or
“locked up” (the disconnect and reconnect the ac
display is “frozen”). adapter.

The display is either 1. Clean the thermometer lens.
erratic or stays at Refer to Section 4.2.
one reading.

2. Activate the Diagnostic routine of the
thermometer as follows (while looking
at room temp):

a. Pull the trigger and press the key

to lock the trigger.

b. Press the key and key at the

same time.

You can expect to see and hear the following:

• You will see the model and version

number “VER X.X” of the software for
about 1 second.

• You will hear a beep, “TST” is displayed.

• Soon after, all of the segments of the

display including the backlighting will
light up for about 1 second.

• The display will clear and a PAS (pass)

or ERR (error) code may be seen on the
display.
ERR1: Infrared temp reading is >150°F
or < 23°F.
ERR2: Ambient temp >122°F or < 32°F
ERR3: Can not read from EEPROM
memory
EER4: Can not write to EEPROM memory

☞

LOCK

FUNC

LOCK

7-3

Troubleshooting Guide

7

Problem Solution

1. The thermometer has to stabilize
before taking temperature
measurements. It takes up to 30
minutes for the thermometer to
stabilize.

1. The thermometer has to stabilize
before taking temperature
measurements. It takes up to 20
minutes for the thermometer to
stabilize.

No Laser Beam 1. Make sure the trigger is pulled

and the laser power switch is
turned on. (The red power LED
should be lit).

The Laser "line of sight"

does not coincide
with the center of the
target.

☞

The temperature reading
is erratic. The thermometer
has just been moved from
one extreme temperature
to room temperature [0°C
or 50°C (32°F or 122°F)]
or vice versa.

The temperature reading
is erratic. The thermometer
has just been moved from
room temperature
(ambient temperature) to a
temperature 10°C colder
or warmer.

1. The line of sight and the center

of the target are offset by design.
(refer to Figure 3-4 and the
explanation above it for how
to compensate for this).

7-4

Troubleshooting Guide

7

Notes

Specifications

8

(Specifications are for all models except where noted)

THERMOMETER

Measuring OS530HRE, -30°C to 121°C (-22°F to 250°F)
Temperature OS530LE,
Range: OS533E,OS532E: -23°C to 538°C (-10°F to 1000°F)

OS534E -23°C to 871°C (-10°F to 1600°F)
OS523E -18°C to 1371°C (0°F to 2500°F)
OS524E

538°C to 2482°C (1000°F to 4500°F)
±1% of reading or

3°F whichever is greater
(2% Rdg for temp > 2000°F for OS524E)

Field of Vision: OS532E, OS530LE 10:1

OS533E, OS530HRE 20:1
OS534E 30:1
OS53x-CF 0.15"@6"
OS523E-1 30:1
OS523E-2 60:1
OS523E-3 68:1
OS524E 110:1

Repeatability: ± (1% rdg + 1 digit)
Resolution: 1°C or 1°F (0.1°C or °F for OS530HRE)

Response Time: 100 msec
Spectral Response: 8 to 14 microns (2 to 2.5 microns, OS524)
Thermocouple Input: Type K, -18 to 871°C (0 to 1600°F)

(OS532E, OS533E, OS534E only)
Input Connection: SMP Connector
Thermocouple Display

Accuracy @ 24°C (75°F)
Ambient Temperature: ±3°C (±5°F)

Thermocouple Display
Response Time: 2 seconds

Operating Ambient 0°C to 50°C
Temperature: (32°F to 122°F)

Operating Relative
Humidity: 95% or less without condensation

Display: Backlit LCD dual display
Keypad: 4 position, tactile feed-back membrane switch

8-1

Accuracy (24°C or 75°F
Ambient Temperature and
at emissivity of 0.95 or
greater):

Specifications

8

8-2

Average Temperature
Accuracy Time Period 30 days
(under continuous operation):

Emissivity: 0.10 to 1.00 in 0.01 increments,

set via keypad

Calculated Temperature Maximum (MAX), Minimum (MIN),
Values: Average (AVG), Differential (dIF),

Thermocouple (TC)

Ambient Target Set and enabled via keypad
Temperature Compensation:(OS533E, OS534E, OS523E, OS524E)

RS232 Output (for Standard on OS533E, OS534E, OS523E, OS524E
personal computers 9600 bits per second, 8 bits of data,
and serial printers): 1 stop bit, no parity

RS-232 Cable: RJ12 to 9 pin D connector, Female

RJ12 Pin # 9 pin D connector Pin #
3 TX 2 RX

4 RX 3 TX
5 GND 5 GND

Analog Cable: 6 feet long; 2-conductor, 22 AWG

3.5mm male plug

Alarm: Set and enabled via keypad

All models: High alarm standard, with

audible and visual indication

OS533E, OS534E Low alarm standard, with
OS523E, OS524E: audible and visual indication

Data Storage: OS534E, OS523E Up to 800 temperature data

OS524E: points.

Aiming Feature: ”V” groove on top of the thermometer or use Laser

Sighting

Analog Output: 1 mV/°F or 1 mV/°C, set via keypad

(0.5 mV/Deg, OS524E)
Analog Output Accuracy: ±2mV reference to temperature display
Power: 4 AA size 1.5 volt batteries (lithium or alkaline)
Battery Type

Alkaline General brand
Lithium: Eveready Energizer, model number L91 BP-2

Battery Storage –40°C to 50°C (-40°F to 122°F)
Temperature

8-3

Specifications

8

ac adapter: Optional - 100 to 240 Vac. 50-60 Hz, UL, CE,

FCC, CE marketing
Output voltage: 9 Vdc at 1.7 A
Output plug (female): Center positive, coax 2.0/5.5/10mm

Low Battery Indicator: LOBAT icon and intermittent beep
Alkaline Batery Life at 24°C

(75·°F) ambient temperature
Without Laser Sighting 80 Hours, continuous operation
With Laser Sighting 15 Hours, continuous operation
With LCD backlight & no laser 24 Hours, continuous operation
With Built-in Distance Module 50 Hours, continuous operation
With Built-in Distance Moduler active 4 Hours, continuous operation
Lithium

Batery Life at 24°C

(75·°F) ambient temperature
Without Laser Sighting 14 Days, continuous operation
With Laser Sighting 2.5 Days, continuous operation
With LCD backlight & no laser 4 Days, continuous operation
With Built-in Distance Module 8 Days, continuous operation
With Built-in Distance Moduler active 15 Hours, continuous operation
Sighting Scope

Magnification: 1.5x
Tripod Mount:

1

⁄4"-20 UNC
Wrist Strap: Attached to the thermometer case
Soft Carrying Case: Standard
Dimensions: 218.4 x 167.6 x 50.8 mm

(8.6" x 6.6" x 2.0" )

Weight: 0.585 kg (1.3 lbs)

–

+

Specifications

8

8-4

LASER SIGHTING

Wavelength (Color): 630-670 nanometers (red)
Operating Distance:

Laser Dot 2 to 40 ft.
Laser Circle 2 to 15 ft.

Max. Output Optical Power: <1mW at 75°F ambient temperature,

Class II Laser Product
European Classification: Class 2, EN60825-1
Maximum Operating Current: 25mA at 5.5 V
FDA Classification: Complies with 21 CFR Chapter 1, Subchapter J
Beam Diameter: 5 mm
Beam Divergence: <2mrad
Laser Configuration: Dot/Circle switchable except for OS53x-CF

and OS523E-3 models
Laser Status: Flashing or continuous, set via keypad
Operating Temperature: 0°C to 50°C (32°F to 122°F)
Operating Relative Humidity: 95% or less without condensation
Power Switch: Slide switch, ON - OFF
Power Indicator: Red LED
Power: Supplied by the thermometer
Identification Label: Located on the bottom of the thermometer
Warning & Certification Label: Located on the left side of the thermometer

(for the label layout, refer to the inside back cover)

DISTANCE MEASURING (Model HH-DM)

Range: 0.9 to 9 m (3' to 30')
Accuracy: 1% of Rdg or 3 cm (0.1') whichever is greater
Units of Measure: Meter or Feet – switchable via C button
Sensor: Ultrasonic transducer
Power: 9 Volts Battery
Battery Life: 50 hours, continuous
Operating ambient 0 to 40°C

temperature:
Operating relative humidity: 30 to 70% RH
Auto power shut off: Approx. 7 minutes after the last key press

8-5

Specifications

8

DISTANCE MEASURING (Built-in-DM)

Size 133 x 73 x 33mm (5.25" x 2.87" x 1.3")
Weight 170 g Range: 0.9 to 9 m (3' to 30')
Accuracy: 1% of Rdg or 3 cm (0.1') whichever is greater
Units of Measure: Meter or Feet – switchable via keypad
Sensor: Ultrasonic transducer
Power: From infrared thermometer
Battery Life: 4 hours, continuous (Alkaline Battery)

15 hours, continuous (Lithium Battery)

Operating ambient
temperature: 0 to 50°C

Operating relative humidity: Less than 80% RH

DIGITAL VIDEO CAMERA

Display: 1.4" Color LCD
Digit Still Camera:

2M: 1600 x 1200 pixels
SXGA: 1280 x 1024 pixels
VGA: 640 x 480 pixels

PC Camera:

VGA: (640 x 480 pixels)/10 fps

QVGA: (320 x 240 pixels)/24 fps
Digital voice recording: About 4 min/1 MB memory
PC interface: USB port
A/V output: Supports NTSC/PAL TV systems
Internal Memory: 16 MB SDRAM
Memory Card, CF: 32 MB, included
Self Timer: 10 seconds
Power: Two AA size batteries
Size: 68 x 41 x 84 mm (2.7" x 1.6" x 3.3")

Specifications

8

8-6

Notes

Glossary of Key Strokes

9

9-1

Key(s) Key(s) Functions

• Selects one of the following Display
Modes:

E , d-F, d-M, MAX, MIN, dIF, AVG, TC,
HAL, LAL, AMB, PRN, MEM or LOG.

• Locks/unlocks the trigger.

• Enables/disables High & Low Alarm.

• Enables/disables Target Ambient
Temperature Compensation.

• Enables/disables sending data to the
personal computer or serial printer.

• Stores temperature data on command.

• Displays previously stored data.

• Resets Min, Max, AVG values

• Increments the data or value displayed.

• Turns on or off the backlighting (only in
MAX, MIN, dIF, TC or AVG Display
Modes).

• Decrements the data or value displayed.

• Changes the unit of measure from °F to
°C or vice versa (only in MAX, MIN, dIF,
TC or AVG Display Modes).

Press the key & • Allows you to go to the Diagnostic

the key together Routine.

Press the & • Allows you to erase all 800 stored

the keys together temperature data from the memory.

Press and Hold Key • Reset the thermometer. It sets all

Pull the trigger parameters to default values.

Release trigger

Release Key

F

C

F

C

LOCK

LOCK

FUNC

F

C

LOCK

FUNC

Glossary of Key Strokes

9

9-2

Notes

A-1

Appendix: How Infrared Thermometry Works

A

Thermal Radiation

Heat is transferred from all objects via radiation in the form of
electromagnetic waves or by conduction or convection. All objects
having a temperature greater than absolute zero
(-273°C, -459°F, 0 K) radiate energy. The thermal energy radiated
by an object increases as the object gets hotter. Measurement of this
thermal energy allows an infrared thermometer to calculate the
object’s temperature if the emissivity (blackness) is known.
Generally, it is convenient to measure the amount of radiated
energy in the infrared part of an object’s radiation spectrum.

Figure A-1 shows a block diagram of an infrared radiation
thermometer. Energy from the object is focused by the lens onto the
detector. As the detector heats up, it sends out an electrical signal,
which in turn is amplified and sent to the circuitry of the
thermometer. The thermometer software then calculates the
temperature of the object.

Figure A-1. Infrared Thermometer Block Diagram

LENS

AMPLIFIER

THERMOMETER
CIRCUITRY AND

DISPLAY

DETECTOR

OR

SIGNAL OUTPUT TO SERIAL PRINTER

OR PERSONAL COMPUTER

OBJECT

Appendix: How Infrared Thermometry Works

A

A-2

Blackbody

When thermal radiation falls on an object, part of the energy is
transmitted through the object, part is reflected and part is
absorbed. A blackbody is defined as an ideal object that absorbs all
the radiation incident upon it. The best example of a real object that
acts like a blackbody is a small hole drilled deep into a large opaque
cavity. Thermal radiation entering the cavity is internally reflected
and has little chance of escaping the cavity before it is fully
absorbed.

Emissivity is defined as the ratio of energy radiated by an object to
that of the energy radiated by a blackbody. By definition, the
emissivity of a blackbody is 1. Most objects are considered gray
objects with an emissivity between 0 and 1. Various emissivities for
common materials are shown in Appendix B.

Spectral Distribution

Objects radiate energy at
different wavelengths, but
not with constant intensity
at each wavelength. Figure
A-2 shows the energy
radiated by a blackbody at
various temperatures as a
function of wavelength. As
a body is heated, the
intensity of the radiated
energy increases and the
peak of the curve shifts
towards the shorter
wavelength end of the
spectrum. The total area
under a spectral
distribution curve is
proportional to the total
energy radiated by the
blackbody at a given
temperature.

Figure A-2. Blackbody Spectral Distribution

Relative emission from a blackbody versus wavelength.
The area under the curve corresponds to the total ener­gy, and is proportional to the absolute temperature to
the 4th power. The peak of the spectral distribution
curve shifts to shorter wavelengths as the temperature
increases.

A-3

Appendix: How Infrared Thermometry Works

A

Wien’s Displacement Law describes the exact mathematical
relationship between the temperature of a blackbody and the
wavelength of the maximum intensity radiation.

where λ

m

= wavelength measured in microns

T = temperature in Kelvin

Calculating Temperature

The net thermal power radiated by an object has been shown to
depend on its emissivity, its temperature and that of the ambient
temperature around the object. A very useful equation known today
as the Stefan-Boltzmann Law

has been shown both theoretically and

empirically to describe the relationship.

I = thermal power in watts/meter

2

ε = Emissivity
σ = 5.6703 x 10-8watts/meter2x K4(Stefan’s constant)

T = temperature of object in Kelvin
Ta= temperature of ambient surroundings in Kelvin

The infrared thermometer uses this equation directly in calculating
the temperature of an object. The incident power is measured by the
infrared detector. The emissivity of the object is determined by the
user. The ambient temperature is measured by a sensor inside the
thermometer. With all quantities known, the thermometer uses the
Stefan-Bolzmann Law

to calculate and output the temperature of the

object.

λm =

2.898

T

Appendix: How Infrared Thermometry Works

A

A-4

Optics Field of View

Accurate measurement of temperature via infrared means depends
strongly on the size of the object and the distance between the
thermometer and the object. All optical devices (e.g. cameras,
microscopes, infrared thermometers) have an angle of vision,
known as a field of view or FOV, within which they see all objects.
In particular, the thermometer will measure a fixed proportion

of

the energy radiated by all

objects within its FOV. The user must
guarantee that the distance between the thermometer and the object
is defined so that only that object fills the FOV of the instrument.

Referring to Figure A-3, Objects “X” and “Y” are within the FOV of
the thermometer. The measured temperature would fall somewhere
between the actual temperatures of the two objects. In order to
measure the temperature of Object “X” accurately, Object “Y”
would need to be removed. In order to measure the temperature of
Object “Y” accurately, the user would need to move closer to Object
“Y” until it completely filled the FOV of the thermometer.
Alternatively, the user could measure the temperature of Object “Y”
with a thermometer with a smaller FOV.

Figure A-3. Field of View of a Thermometer

The distance-to-spot size ratio (D⁄S) defines the field of view (FOV).
Thus, a

D

⁄S = 10 gives you approximately a 1 foot spot size at a
distance of 10 feet. For accurate spot size values, refer to the Field of
View diagrams shown in Figures 2-4 through 2-6.

SPOT
SIZE

FOV

ANGLE

OBJECT "Y"

DISTANCE

OBJECT "X"

B-1

Appendix: Emissivity Values

B

Table B-1 provides guidelines for estimating the emissivity of various
common materials. Actual emissivity, especially of metals, can vary
greatly depending upon surface finish, oxidation, or the presence of
contaminants. Also, emissivity or infrared radiation for some materials
varies with wavelength and temperature. To determine the exact
emissivities for most applications, follow the procedures in Appendix C.

Table B-1. Emissivity Table

METALS

Material Emissivity (ε)

Aluminum – pure highly polished plate . . . . . . . . . . . . . . . . . . . . 0.04 to 0.06

Aluminum

– heavily oxidized . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.20 to 0.31

Aluminum

– commercial sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.09

Brass

– dull plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.22

Brass

– highly polished, 73.2% Cu, 26.7% Zn . . . . . . . . . . . . . . . . . . . . 0.03

Chromium

– polished . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.08 to 0.36

Copper

– polished . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.05

Copper

– heated at 600°C (1110°F) . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.57

Gold

– pure, highly polished or liquid . . . . . . . . . . . . . . . . . . . . 0.02 to 0.04

Iron and steel (excluding stainless)

– polished iron . . . . . . . . . . . . 0.14 to 0.38

Iron and steel (excluding stainless)

– polished cast iron . . . . . . . . . . . . . . 0.21

Iron and steel (excluding stainless)

– polished wrought iron . . . . . . . . . . . 0.28

Iron and steel (excluding stainless)

– oxidized dull wrought iron . . . . . . . . 0.94

Iron and steel (excluding stainless)

– rusted iron plate . . . . . . . . . . . . . . . 0.69

Iron and steel (excluding stainless)

– polished steel . . . . . . . . . . . . . . . . . 0.07

Iron and steel (excluding stainless)

– polished steel oxidized at

600°C (1110°F) . . . . . . . . . . . . . . . 0.79

Iron and steel (excluding stainless)

– rolled sheet steel . . . . . . . . . . . . . . . 0.66

Iron and steel (excluding stainless)

– rough steel plate . . . . . . . . . 0.94 to 0.97

Lead

– gray and oxidized . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.28

Mercury

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.09 to 0.12

Molybdenum filament

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.10 to 0.20

Nickel

– polished . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.07

Nickel

– oxidized at 649 to1254°C (1200°F to 2290°F) . . . . . . . 0.59 to 0.86

Platinum

– pure polished plate . . . . . . . . . . . . . . . . . . . . . . . . . . 0.05 to 0.10

Platinum

– wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.07 to 0.18

Silver

– pure and polished . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.02 to 0.03

Stainless steel

– polished . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.07

Stainless steel

– Type 301 at 232 to 941°C (450°F to 1725°F) . . . 0.54 to 0.63

Tin

– bright . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.06

Tungsten

– filament . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.39

Zinc

– polished commercial pure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.05

Zinc

– galvanized sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.23

Appendix: Emissivity Values

B

B-2

NONMETALS

Material Emissivity (ε)

Asbestos Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.96

Asphalt, tar, pitch

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.95 to 1.00

Brick

– red and rough . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.93

Brick

– fireclay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.75

Carbon

– filament . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.53

Carbon

– lampblack - rough deposit . . . . . . . . . . . . . . . . . . . . . 0.78 to 0.84

Glass

- Pyrex, lead, soda . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.85 to 0.95

Marble

– polished light gray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.93

Paints, lacquers, and varnishes

– Black matte shellac . . . . . . . . . . . . . . . . 0.91

Paints, lacquers, and varnishes

– aluminum paints . . . . . . . . . . . 0.27 to 0.67

Paints, lacquers, and varnishes

– flat black lacquer . . . . . . . . . . . 0.96 to 0.98

Paints, lacquers, and varnishes

– white enamel varnish . . . . . . . . . . . . . . 0.91

Porcelain

– glazed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.92

Quartz

– opaque . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.68 to 0.92

Roofing Paper

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.91

Tape

– Masking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.95

Water

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.95 to 0.96

Wood

– planed oak . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.90

C-1

Appendix: Determining an Unknown Emissivity

C

In Appendix A, we showed how emissivity is an important
parameter in calculating the temperature of an object via infrared
means. In this section we discuss how to determine a specific
emissivity value. If you know the material of the object, use Table B­1 in Appendix B to look up its approximate emissivity. Most organic
materials such as plastics, cloth, or wood have an emissivity of
about 0.95. For this reason, we use 0.95 as the default emissivity
setting in the OS530 Series Thermometer.

For objects of unknown material or for very precise measurements,
use one of the following methods to determine a specific emissivity
value.

Method 1

1. Measure and record the temperature of the object using a contact
temperature probe such as a thermocouple or RTD.

2. Aim the thermometer at the object.

3. Adjust the emissivity until the temperature reading of the
thermometer equals the temperature measured in Step 1.

Method 2

1. Heat the object (or at least a sample of the object material) on top
of a heating plate to a known temperature. Make sure the
thermometer and the air surrounding the heating plate are at the
same temperature.

2. Measure the temperature of the object material with the
thermometer. Make sure that the object fills the FOV of the
thermometer.

3. Adjust the emissivity until the temperature reading of the
thermometer equals the known temperature of Step 1.

Appendix: Determining an Unknown Emissivity

C

C-2

Method 3

1. Use this method to measure objects at temperatures below 260°C
(500°F).

2. Place a large piece of masking tape on the object (or at least a
sample of the object material). Allow time for the masking tape to
reach the object temperature.

3. Set the emissivity of the thermometer to 0.95. Use the thermometer
to measure and record the temperature of the masking tape - Area
‘A’ in Figure C-1. Make sure that the area of the object covered
with masking tape fills the FOV of the thermometer.

Figure C-1. Determining Emissivity

4. Aim the thermometer at Area ‘B’ as shown in Figure C-1 Make
sure that Area ‘B’ is as close as possible to Area ‘A’.

5. Adjust the emissivity of the thermometer until the temperature
reading equals the temperature found in Step 3.

Area 'A'

Target

Area 'B'

Target

C-3

Appendix - Determining an Unknown Emissivity

C

Method 4

1. Paint a sample of the object material with flat black lacquer paint.

2. Set the emissivity to 0.97 and measure and record the temperature
of the painted portion of the sample material - Area ‘A’ in Figure
C-1. Make sure that the painted area of object material fills the
FOV of the thermometer.

3. Aim the thermometer at another spot on the target - Area ‘B’ in
Figure C-1.

4. Adjust the emissivity of the thermometer until the temperature
reading equals the temperature found in Step 2.

Method 5

1. Use this method where practical to measure objects at
temperatures above 260°C (500°F ).

2. Drill a 35 mm (1.5") diameter hole in a sample of the object
material to a depth of 127 mm (5"). This hole closely resembles a
blackbody (refer to Appendix A).

Figure C-2. Determining Emissivity with a Drilled Hole

3. Set the emissivity to 0.97 and measure and record the temperature
of the hole in the sample material - Area ‘A’ in Figure C-2. Make
sure that the hole fills the FOV of the thermometer.

4. Aim the thermometer at another spot on the target as close as
possible to Area ‘A’ (Area ‘B’ in Figure C-2).

5. Adjust the emissivity of the thermometer until the temperature
reading equals the temperature found in Step 3.

Drilled out

Area 'A' Target

Area 'B' Target

Appendix: Determining an Unknown Emissivity

C

C-4

Notes

I-1

Index

I

A

ac Adapter Input Jack ............. 1-7

Active Operation ...................... 2-9

Aiming Sight “V Groove” 1-2, 1-5

Alarms ........................... 2-16, 2-17

Alkaline Batteries ...... 2-1, 5-1, 6-1

Ambient Target Temperature

Compensation .... 2-18, 2-19, 2-28

Analog Output Jack ................. 1-7

B

Backlighting Icon ...................... 1-5

Battery(s):

Compartment ........ 1-5, 2-1, 6-1

Installing AA size.......... 2-1, 5-1

Life of .................................... 8-3

Blackbody ................ A-2, A-3, C-3

Beeping Sound 2-16, 2-26, 6-1,

7-1, 7-2

C

Carrying Case ........................... 1-2

Chart Recorder Hookup ......... 2-8

Computer:

Parameters:

Speed, Data, Parity,
Stop Bit 2-21, 2-24, 2-26, 2-28,

2-31

Personal, Hookup .............. 2-20

Program (IRTM)

......................... 2-20, 2-21, 2-22

D

Diagnostic Program ......... 7-2, 9-1

Differential Measurement ...... 2-7

Display

Icons:

ATC ........................ 1-6

Backlighting .......... 1-6

HAL ....................... 1-6

LAL ........................ 1-6

LCK ........................ 1-6

LOBAT ...................1-6

PRN ........................ 1-6

Modes:

AMB ....................... 1-6

AVG ....................... 1-6

dIF .......................... 1-6

E ...............................1-6

HAL ....................... 1-6

LAL ........................ 1-6

MAX .......................1-6

MEM ...................... 1-6

MIN ........................ 1-6

PRN ........................ 1-6

Problems ................ 7-1, 7-2, 7-3

Distance

Built-in .......................2-14, 2-15

Meter (HH-DM) .........2-14, 2-15

Field of Views ........... 2-14, 2-15

Digital Video Camera................5-1

E

Emissivities:

Adjusting ............................ 2-12

Definition ............................. A-2

Figuring out Unknown ...... C-1

Values ................................... B-1

Erasing Temperature Data ... 2-28

Error Codes ................ 7-1, 7-2, 7-3

Index

I

I-2

F

Field of View:

Diagrams .................... 2-2 to 2-6

Positions ................................ 2-2

Fixed Point Monitoring over

Time Measurement ................ 2-8

G

Gray Bodies (Objects) ............. A-2

H

High Alarm Value, setting ............

.................................. 2-16, 2-27

I

Icons:

ATC ....................................... 1-6

Backlighting ......................... 1-6

HAL........................................ 1-6

LAL ........................................ 1-6

LCK ........................................ 1-6

LOBAT .................................. 1-6

PRN ....................................... 1-6

Installing

AA Batteries ......................... 2-1

Laser Sight Module ...... 3-3, 3-4

J

Jacks

ac Adapter Input ................. 1-7

Analog Output ..................... 1-7

RS-232 Phone ........................ 1-7

K

Keypad, 4-position .................. 1-6

Keys:

▼ & °F-°C............................... 1-6

FUNC (Function) ................. 1-6

LOCK (Lock) ........................ 1-6

▲ & ❍-● ................................ 1-6

Key Strokes ............................... 9-1

L

Label Layout:

Danger & Certification ............

.....................Inside Back Cover

Laser Sight Module:

Laser Circle ........................... 3-3

Laser Dot .............................. 3-3

Installing onto

Thermometer ...................... 3-4

Line of Sight ......................... 3-4

Power Button ................ 2-2, 3-2

Problems .................... 7-1 to 7-3

Power Indicator LED.... 2-2, 3-3

Removing from

Thermometer .............. 3-4, 3-5

Status ................................... 2-15

Warnings and Cautions ...... 3-1

LCD, Backlit ................... 1-5 to 1-7

Lens Cleaning ........................... 6-2

Lines of Sight of the Module

and Thermometer .................. 3-4

Lithium Batteries ....... 2-1, 6-1, 8-3

Lock Function ......................... 2-12

Low Alarm Value, setting .... 2-17

I-3

Index

I

M

Main Display ............................ 1-4

Modes:

Real Time .............................. 2-8

Recall ........................ 2-23, 2-25

Moving Surface Scan ............... 2-7

O

Optics ........................................ A-4

P

Parameters, reviewing .......... 2-27

PAS Code .................................. 5-2

Passive Operation .................. 2-25

Personal Computer

Hookup ................................. 2-19

Power Contacts:

Cleaning ................................ 4-2

On Laser Sight Module .. 1-4, 4-2

Power Indicator LED ....... 2-2, 3-2

Printer, Serial, Hookup ......... 2-17

R

Real Time Mode Block

Diagram .................................. 2-8

Recall Mode Block Diagram ... 2-26

Replacing AA Batteries ........... 4-1

RS-232 Phone Jack ................... 1-6

Rubber Boot:

Display .................................. 1-4

IR Lens .................................. 1-4

S

Serial Printer Hookup .... 2-8, 2-20

Sleep Mode ..... 2-6, 2-9, 2-15, 2-29

Spectral Distribution .............. A-2

Spot Measurement ................... 2-7

Sighting Scope............................4-1

Static Surface Scan ................... 2-7

Stefan-Boltzmann Law ........... A-3

Storing Temperature Data ............

............ 2-20, 2-26, 2-27

T

Temperature Data:

Erasing .................................2-28

Storing ........................ 2-26, 2-27

Thermal Radiation .................. A-1

Thermometer:

Front View..............................1-5

Various View .........................1-7

Tripod Thread Mount ............. 1-5

V

“V” Groove Aiming Sight 1-5, 4-1

W

Wein’s Displacement Law ..... A-3

Wrist Strap ................................ 1-5

WARRANTY/DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of
25 months from date of purchase on the base unit

and 13 months from date of purchase on Laser Sight Module.

OMEGA Warranty adds an additional one (1) month grace period to the normal product warranty to cover
handling and shipping time. This ensures that OMEGA’s customers receive maximum coverage on each product.

If the unit should malfunction, it must be returned to the factory for evaluation. OMEGA’s Customer Service
Department will issue an Authorized Return (AR) number immediately upon phone or written request. Upon
examination by OMEGA, if the unit is found to be defective it will be repaired or replaced at no charge.
OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser, including but not
limited to mishandling, improper interfacing, operation outside of design limits, improper repair, or unautho­rized modification. This WARRANTY is VOID if the unit shows evidence of having been tampered with or
shows evidence of being damaged as a result of excessive corrosion; or current, heat, moisture or vibration;
improper specification; misapplication; misuse or other operating conditions outside of OMEGA’s control.
Components for which wear is not warranteed, includes, but is not limited to, contact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products. However,
OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any
damages that result from the use of its products in accordance with information provided by
OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by the
company will be as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR
REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF TITLE,
AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies of
purchaser set forth herein are exclusive and the total liability of OMEGA with respect to this order,
whether based on contract, warranty, negligence, indemnification, strict liability or otherwise, shall not
exceed the purchase price of the component upon which liability is based. In no event shall OMEGA be
liable for consequential, incidental or special damages.

CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic
Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical
applications or used on humans. Should any Product(s) be used in or with any nuclear installation or
activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility as
set forth in our basic WARRANTY / DISCLAIMER language, and additionally, purchaser will indemnify
OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the
Product(s) in such a manner.

RETURN REQUESTS / INQUIRIES

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE
RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN (AR)
NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID PROCESSING DELAYS).
The assigned AR number should then be marked on the outside of the return package and on any correspondence.

The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent
breakage in transit.

FOR WARRANTY

RETURNS, please have the fol­lowing information available BEFORE contacting
OMEGA:

1. P.O. number under which the product was

PURCHASED,

2. Model and serial number of the product under

warranty, and

3. Repair instructions and/or specific

problems relative to the product.

FOR NON-WARRANTY REPAIRS,

consult OMEGA for
current repair charges. Have the following informa­tion available BEFORE contacting OMEGA:

1. P.O. number to cover the COST

of the repair,

2. Model and serial number of product, and

3. Repair instructions and/or specific problems

relative to the product.

PATENT NOTICE: U.S. PAT. D357,194; B1 5,368,392; 5,524,984; 5,727,880; 5,465,838; 5,823,678; 5,823,679; 6,123,453;
6,267,500 B1; 6,341,891 B1; 6,377,400 B1; 6,540,398 B2 ; 6,614,830 B1; 6,633,434 B2; 6,659,639; / Canada 2,114,806;
2,116,055; 75811 D OMEGA ENGINEERING, INC./ Czech Republic 25372/ France 2 756 920; 2 767 921; 2,773,213; 0378411
to 0378446; 2 773 213 B1 / Germany M 94 06 478.4; G 94 22 197.9; G 94 22 203.7/ Italy RM940000913/ Japan 988,378/Holland
1007752; 25009-00/ Spain mod. ut. 0133292/ Slovak Republic 24565/ U.K. Registered 2041153; 9726133.3/ EPO 0 644,408 B2;
EP 1 085 307 A1. Other U.S. and Foreign Patents Pending.

OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible.
This affords our customers the latest in technology and engineering.

OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
© Copyright 2007 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied,

reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without
prior written consent of OMEGA ENGINEERING, INC.

AVOID EXPOSURE

LASER RADIATION

IS EMITTED FROM

THIS APERTURE

LASER RADIATION - DO NOT STARE INTO BEAM

OUTPUT <1 mW, WAVELENGTH 630-670 nm
CLASS II (2) LASER PRODUCT, COMPLIES
WITH FDA 21CFR 1040.10 & EN60825-1/11.2001

®

OMEGASCOPE

CAUTION

Label Location - refer to Section 3.2 Warnings and Cautions - refer to Section 3.1

Warning and Certification Label

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