Omega OS523, OS531, OS530L, OS532, OS53X-CF User Manual

OS531, OS532, OS53x-CF,

OS533, OS534, OS530L, OS530HR

OS523, OS524 OMEGASCOPE

®

Handheld Infrared Thermometer

Shown with
Built-in Laser Sighting

TM

omega.com

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User’s Guide

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Unpacking Instructions

n4

Notes

i

Unpacking Instructions

NOTE

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 OS533, OS534, OS523, OS524)

• CD Software (only for OS533, OS534, OS523, OS524)

• Quick Start Manual (1)

• User’s Guide (1)

Accessories

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

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

OS520-ADAPTER-110V 110 VAC wall Adaptor, 9 VDC @ 200 mA
OS520-ADAPTER-220V 230 VAC wall Adaptor, 9 VDC @ 300 mA
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

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 1-4

1.2.1 Front of the Thermometer 1-4

1.2.2 Rear of the Thermometer 1-6

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 Calculating Temperature Values 2-12

2.3.4 Changing the Temperature from °F to °C (or vice versa) 2-12

2.3.5 Turning on the Display Backlighting 2-12

2.3.6 Thermocouple Input 2-13

2.3.7 Using the Alarm Functions 2-14

2.3.8 Using Ambient Target Temperature Compensation 2-16

2.3.9 Sending Temperature Data to a Series Printer 2.17

2.3.10 Sending Temperature Data to a Personal Computer 2.19

2.3.10.1 Software Installation 2.19

2.3.11 Storing the Temperature Data on Command 2-23

2.3.12 Erasing the Temperature Data form Memory 2.24

2.4 Recall Mode (Passive Operation) 2-25

2.4.1 Reviewing the Last Parameters 2-27

2.4.2 Downloading PReviously Stored Temperature Data 2-27

2.4.3 Reviewing Previously Stored Temperature 2-29

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

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

Chapter 5 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.1 Replacing the Batteries 5-1

5.2 Cleaning the Lens 5-2

5.3 Calibrating the Thermometer 5-2

5.4 Servicing the Laser Sighting 5-2

Chapter 6 Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Chapter 7 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Chapter 8 Glossary of Key Strokes . . . . . . . . . . . . . . . . . . . . . . . 8-1

OS530/OS520 Series

Handheld Infrared Thermometer

iii

TABLE OF

CONTENTS

iv

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 OS530/OS520 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.

• An electronic trigger lock feature set via the keypad allows
continuous temperature measurement up to 4 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). OS524
provides 0.5 mV/Deg.

• Last temperature recall.

• 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 100 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

OS531 OS532 OS533 OS534

Accuracy* ±2% rdg ±1% rdg ±1% rdg ±1% rdg
Range 0 to 750°F 0 to 1000°F 0 to 1000°F 0 to 1600°F

(-18 to 400°C) (-18 to 538°C) (-18 to 538°C) (-18 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

1-3

General Description

1

Features

OS530L OS530HR OS530L-CF OS533-CF OS534-CF

Accuracy* ±1% rdg 3°F (1.7 °C) ±1% rdg ±1% rdg ±1% rdg
Range -18 to 538°C -30 to 121°C -18 to 538°C -18 to 538°C -18 to 871°C

0 to 1000°F -22 to 250°F 0 to 1000°F 0 to 1000°F 0 to 1600°F
Emissivity Adjustable Adjustable Adjustable Adjustable Adjustable
Display Resolution 1°F or 1°C 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 std

Display
Field of view 10:1 20:1 .15"@6" .15"@6" .15"@6"
Differential

Temperature std std std std std
Min/Max

Temperature std std std std std
Average

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

& Indicator

std std std std std

Ambient Target
Temp --- --- --- std std

Compensation

Analog Output 1 mV/Deg 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/Circle Dot Dot Dot

sighting
Trigger Lock std std std std std
Last Temperature

Recall std std std std std
Thermocouple

Input --- --- --- std std

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

greater.

General Description

1

1-4

Distance to Spot Size Ratio

OS523-1 30:1
OS523-2 60:1
OS523-3 68:1

** OS523 provides three field of views:

Features OS523

**

OS524

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 standard standard
Trigger Lock standard standard
Last Temperature Recall standard standard

1.2 Parts of the Thermometer

1.2.1 Front of the Thermometer

Figure 1-1. OS530/OS520 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.

°F

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:

TC (Thermocouple Input)
E (Emissivity) HAL (High Alarm Setpoint)
MAX (Maximum Temperature) LAL (Low Alarm Setpoint)
MIN (Minimum Temperature) AMB (Ambient Target Temp)
dIF (Differential Temperature) PRN (Print Data)
AVG (Average Temperature) MEM (Store 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

➆

▲ for incrementing data; is for turning on/off the backlighting

➇

▼ for decrementing data; 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 Print Data

LAL, AMB, PRN: OS533, OS534, OS523, OS524

TC: OS532, OS533, OS534
MEM: OS534, OS523, OS524

LCK

HAL

LOBAT

ATC

LAL

PRN

°F °C

1

10

9

8

7

6

5

4

3

2

1-7

General Description

1

1.2.2 Rear of the Thermometer

Figure 1-3 shows the various jacks that are used to connect a
recorder or the ac adapter to the thermometer. The figure also shows
the location of the tripod thread mount used for fixed point
monitoring. More details are provided in Section 2.2.1.

Figure 1-3. OS530 Series Handheld Infrared Thermometer Rear View

Laser Beam
Aperture

Laser
Dot/Circle
Switch

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
ac adapter. 120Vac/60 Hz and 220Vac/50 Hz adapters are available.
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

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.

Figure 2-2. OS530/OS520 Series with Built-in Laser Sighting

2. The field of view of the thermometer should fall within the area
of the target being measured. See Figure 2-3. Figures 2-4 through
2-6 show the field of view vs distance for the various thermometers.

Figure 2-3. Field of View Positions

Field of View

Target

(ACCEPTABLE)

(UNACCEPTABLE)

Figure 2-4. Field of View OS531, OS532, OS530L

Figure 2-5 Field of View OS533, OS530HR

2-3

Using the Handheld Infrared Thermometer

2

SPOT DIA. * (IN)

SPOT DIA. * (CM)

** 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"

Using the Handheld Infrared Thermometer

2

2-4

Figure 2-6 Field of View OS534, OS523-1

Figure 2-7 Field of View OS53x-CF

.45"

11.5

3"

SPOT DIA.* (MM)

*SPOT DIAMETER MEASURED

AT 90% ENERGY

7.6

SPOT DIA.* (IN)

DISTANCE: SENSOR LENS TO OBJECT (in.)

DISTANCE: SENSOR LENS TO OBJECT (cm.)

15.2

6"

9" 12"

15"

.15"

.39"

.78"

1.17"

3.9

9.9

19.9

29.9

D:S = 40:1

22.9

30.5

38.1

0.9"

22

0

0

2-5

Using the Handheld Infrared Thermometer

2

Figure 2-8 Field of View OS523-2

Figure 2-9 Field of View OS523-3

2.9"

0.9"@ 0

1.9"

22mm @ 0

1.2"

1.0"

31

26

48

75

0.9"

0'

3'

16'10'

*SPOT DIAMETER MEASURED

AT 90% ENERGY

D:S

=

60:1

5'

5.0

0

1.0 3.01.5

SPOT DIA.* (MM)

SPOT DIA.* (IN)

DISTANCE: SENSOR TO OBJECT (FT)

DISTANCE: SENSOR TO OBJECT (M)

7.0"

.35"@ 24"

1.6"

9mm @ 610mm

.8"

21

42

181

.9"

22

4.0"

101

0’

3’

16’10’2’ 5’

SPOT DIA.* (MM)

*SPOT DIAMETER MEASURED

AT 90% ENERGY

5.0

0

.61

1.5

1.0

3.0

SPOT DIA.* (IN)

DISTANCE: SENSOR TO OBJECT (FT)

DISTANCE: SENSOR TO OBJECT (M)

Using the Handheld Infrared Thermometer

2

2-6

Figure 2-10 Field of View OS524

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. 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.

8.7"

0.5"@ 0

5.1"

13mm @ 0

1.5"

38

130

221

0.9"

0' 16' 82'50'

*SPOT DIAMETER MEASURED

AT 90% ENERGY

D:S

=

110:1

25

0

5 15

DISTANCE: SENSOR TO OBJECT (FT)

SPOT DIA.* (MM)

SPOT DIA.* (IN)

DISTANCE: SENSOR TO OBJECT (M)

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.

• 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
2-7 for details. The IR thermometer provides an analog output
of 1mV/degree. (0.5 mV/Deg on OS524)

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

2-7

Using the Handheld Infrared Thermometer

2

Using the Handheld Infrared Thermometer

2

2-8

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.

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 OS533,
OS534, OS523, OS524).

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

To Strip Chart

Recorder

Analog

Cable

NOTE
Center hole is the
analog output jack

NOTE

2-9

Using the Handheld Infrared Thermometer

2

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

If the trigger is pulled two times in rapid sequence,
it may reset the emissivity, high alarm, low alarm and
target ambient temperature to the default values.

NOTE

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

DISPLAY

MODE:

Press to...

Go to

Go to

Go to

Go to

Go to

Go to

or

Go to

Go to

or

Go to

Go to

Press to...

Print stored data

Display stored

temperature

Press or to...

Set memory location

Display shows:

Last temperature

Emissivity

Last temperature

Maximum temperature

Last temperature

Minimum temperature

Last temperature

Differential temperature

Last temperature

Average temperature

Go to

Last temperature

Thermocouple temperature

Last temperature

High alarm setpoint

Last temperature

Low alarm setpoint

Last temperature

Ambient target temperature

Last temperature

Last/stored temperature

Memory location

Disabled

Disabled

OS531 & OS532

OS530L, OS530HR

OS534, OS523, OS524

Recall Mode

°°

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

OS533

Using the Handheld Infrared Thermometer

2

2-10

Figure 2-13. Visual Function Flow Chart

LCK

LAL

ATC

PRN

HAL

MODE MODEDISPLAY DISPLAY

☞

☞

☞

☞

☞

☞

☞

☞

☞

☞

☞

LCK

LCK

LCK

LCK

LCK

LCK

LCK

LCK

LCK

LCK

(Model OS533)

LCK

(Model OS531, OS532
OS530L, OS530HR)

* While in these 5 modes:

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

Use key to turn on the display backlighting.

*

*

*

*

*

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. 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, press the key again,

and the icon is no longer displayed.

NOTE

NOTE

NOTE

°F

Using the Handheld Infrared Thermometer

2

2-12

2.3.3 Calculating Temperature Values

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

To clear the “AVG ---” display, turn off the thermometer.

Every time the thermometer goes from the sleep mode to the
Real Time mode (by pulling the trigger) the MAX, MIN, dIF,
AVG and TC temperatures are updated.

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

During the time that the thermometer displays either MAX, MIN,
dIF, AVG or thermocouple temperatures, press the key to

change all the temperatures from °F to °C or vice versa.

2.3.5 Turning on the Display Backlighting

During the time that the thermometer displays either MAX, MIN,
dIF, AVG or thermocouple temperatures, press the key to
turn the display backlighting ON/OFF while the
unit is in LOCK mode and trigger is released. In addition, the
display backlight turns on automatically when the trigger is pulled.

°F

°F°F°F

°F

“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.

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.

NOTE

2-13

Using the Handheld Infrared Thermometer

2

2.3.6 Thermocouple Input (OS532, OS533, OS534)

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

LCK

°F

LCK

Using the Handheld Infrared Thermometer

2

2-14

2.3.7 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.

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:

OS530HR: 250°F
OS531: 750°F
OS530L, OS532, OS533: 1000°F
OS534: 1600°F
OS523: 2500°F
OS524: 4500°F

NOTE

NOTE

°F

HAL

2-15

Using the Handheld Infrared Thermometer

2

NOTE

°F

LAL

Using the Handheld Infrared Thermometer

2

2-16

• To set the low alarm value: (OS533, OS534, OS523,
OS524):

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 0°F (1000°F for OS524).

NOTE

2.3.8 Using Ambient Target Temperature Compensation
(OS533, OS534, OS523, OS524)

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.

NOTE

°F

ATC

2-17

Using the Handheld Infrared Thermometer

2

°F

PRN

NOTE

°F

ATC

NOTE

Using the Handheld Infrared Thermometer

2

2-18

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.

2.3.9 Sending Temperature Data to a Serial Printer
(OS533, OS534, OS523, OS524)

The thermometer can transmit temperature data to a Serial
Printer via the RS-232 phone jack and the RS-232 cable.

1. Turn on the Serial Printer and set the following
parameters:

Speed: 4800 BPS One Stop Bit
Data: 8 Bits No Parity

2. Connect the RS-232 cable between the thermometer and
the printer as shown in Figure 2-14.

Figure 2-14. Serial Printer Hookup

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

icon will appear on the display.

4. Press and hold the until the Print Data display

Mode (PRN) appears.

5. Press the key to increment the printing interval. Press

the key to decrement the printing interval. The

printing interval (from 1 to 1999 seconds) is the time

between data points. The default value is 2 seconds.

6. Press the key to start sending data. The

icon appears on the display.

To stop sending data, press the key again, and

the icon disappears.

RS-232

Digital
Cable

NOTE

Bottom hole is

the RS-232 jack

25-pin 'D'

Connector

6-pin

Phone Jack

To th e

Printer

To the

Thermometer

Serial Printer

NOTE

°F

PRN

2-19

Using the Handheld Infrared Thermometer

2

°F

PRN

°F

PRN

Using the Handheld Infrared Thermometer

2

2-20

7. After all data is taken, press the key again and
the. icon disappears.

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

9. Press the key to unlock the trigger.

2.3.10 Sending Temperature Data to a Personal Computer
(OS533, OS534, OS523, OS524)

The thermometer can transmit temperature data to a
Personal Computer via the RS-232 phone jack and the
RS-232 cable.

Figure 2-15. Personal Computer Hookup

2.3.10.1 Software Installation

System Requirements

To run IR_TEMPSOFT you must have an IBM-compatible personal
computer with these minimum specifications:

RS-232

Digital

Cable

NOTE

Bottom hole is

the RS-232 jack

Personal
Computer

25-pin 'D'

Connector

6-pin

Phone Jack

To the

Computer

To the

Thermometer

How to Install IR_TEMPSOFT

Please follow this installation procedure to install
IR_TEMPSOFT:

1. Place the supplied CD disk into your CD-ROM drive.
Make certain that you are not running any other
applications at this time. Running other applications
while trying to install IR_TEMPSOFT may cause
installation errors.

2. The CD will automatically start.

3. Click on Free Software. Then Click on the Software icon.

4. Now you will see a menu of Free software download for

different products.

5. Click on the Infrared Thermometer picture icon. This will

start the installation process.

6. Follow the installation instructions as they appear on
your screen. For example, you will be asked in which
directory would you like to install the IR_TEMPSOFT
program. You may accept the default location provided,
("C:\Program Files\IR_TEMPSOFT\") or specify your
own location.

7. During the process of installation, the installer program
will notify you if it is about to overwrite an existing file
with one that is older. Should this occur, it is advisable to
keep your newer files and do not overwrite them with
the supplied older files.

8. After a successful installation, the installer program will
notify you with a pop-up which states "IR_TEMPSOFT
from Omega Engineering Setup was completed
successfully." Just click on the "OK" button.

If you have any trouble with the installation of this

Operating System: Win95, Win98, Win NT 4.0, Windows 2000
Processor : Pentium Class (Any speed)
Ram: 32 Mega-Bytes
Monitor: VGA, Or Higher Resolution
Video Card: Supports VGA, 256 Color, 800 x 600 Resolution (Minimum)
CommPort: 4800 Baud, 8 Databits, 1 Stop, No Parity.
CD-ROM: Any Speed
Hard Drive: 10 Mega-Bytes Available Space (For Installation Only)

2-21

Using the Handheld Infrared Thermometer

2

Using the Handheld Infrared Thermometer

2

2-22

program please contact technical support at Omega
Engineering Inc.

Connecting the IR-System to the PC

Make certain that your Infrared Thermometer is powered
down before you attempt to make any connections to the
personal computer. Making connections between powered
devices and a powered PC can cause damage to
communications ports, or other electronic circuitry in your
device or computer.

1. With the thermometer device powered down, connect the

enclosed serial communications cable to the device.

2. Connect the other end of the serial cable to the desired

communications port of the personal computer. Usually,
it is located in the back of the unit.

3. Pull the trigger and press the key to turn on the

thermometer. Point the thermometer to your target, and
make certain that you are reading a temperature. Do not
begin to print (send) data at this time.

Starting The IR_TEMPSOFT Software

1. From your desktop, click on the "Start" Button.

2. Locate, and click on the "Programs" selection. A side

menu will appear listing all application programs that
can be run on the computer.

3. Locate and click on the "IR_TEMPSOFT" folder.

4. Click on "IR_TEMPSOFT" to start the program.

Receiving Real-Time Temperature Data

1. After the splash screen is displayed and disappears, you

will be left at the main panel of the program.

2. Here you will select the "Command" menu item from the

main menu bar, which will cause a drop down menu to
appear. Select "Send Data In Real Time" to begin
receiving data.

3. A popup will appear showing a computer searching for

an IR Device with the caption "Scanning CommPort for
IR Transmission". This is normal, as the program is now

2-23

Using the Handheld Infrared Thermometer

2

waiting for the thermometer to transmit data through your
RS-232 port.

4. Begin transmitting data from the thermometer by

pressing and holding the key on the thermometer

until the Print Data Display Mode (PRN) appears.

5. Press the "UP" key to increment the printing interval.

Press the "Down" key to decrement the printing interval.
The printing interval (from 1 to 1999) is the time between
data points. The default value is 2 seconds.

6. Press the key on the thermometer to begin

transmitting data. The "PRN" icon appears on the

thermometer display. You should now see the current

temperature, the downloaded parameters, and the

temperature data being charted.

If instead the "Scanning CommPort for IR Transmission"
popup is still visible, then there is a communications error.
Check the communications cable, and its connection at both
the IR device and computers comm-port. Make certain that
you are connected to your configured comm-port.

From the main menu, click on Help, and select On-Line
Manual. The on-line Manual has more detailed information
regarding all the features of the software.

To stop the data transmission from the thermometer, press

the key and the PRN icon will disappear.

The transmitter temperature data is the average
temperature for every printing interval period.

NOTE

Using the Handheld Infrared Thermometer

2

2-24

2.3.11 Storing the Temperature Data on Command
(OS534, OS523, OS524)

The thermometer can store up to 100 temperature data
points on command. Each set of temperature data is broken
down into the temperature value, emissivity, and high
alarm setpoint for that temperature. This data is stored in
non-volatile memory, so removing the batteries will not
affect 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 increment the memory location or

press the key to decrement the memory location.

The memory location can be from 001 to 100.

5. 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.

You can write over any previously stored
memory locations.

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

7. Press the key to unlock the trigger.

NOTE

°F

2-25

Using the Handheld Infrared Thermometer

2

2.3.12 Erasing the Temperature Data from Memory

The user can erase all 100 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 and keys in rapid sequence.

If the icon disappeared, repeat steps

1 and 2

The display freezes momentarily, and a beep
sounds for about 1 second. Now the memory
is cleared. The thermometer reverts to real
time mode.

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

3. After all data is erased from memory, press the

key to unlock the trigger.

NOTE

NOTE

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 2-16. 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.

Start

Sleep
Mode

Pull Trigger

Real Time

Mode (Active)

Recall Mode

(Passive)

Press

(No keys
pressed)

Display Turns Off in

Approx. 10 Seconds

(Release
Trigger)

Display Turns Off

Immediately

(Table 2-1)

(Table 2-2)

NOTE

Using the Handheld Infrared Thermometer

2

2-26

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

DISPLAY

MODE:

Press to...

Go to

Go to

Go to

Go to

Go to

Go to

or

Go to

Go to

or

Go to

Go to

Press to...

Print stored data

Display stored

temperature

Press or to...

Set memory location

Display shows:

Last temperature

Emissivity

Last temperature

Maximum temperature

Last temperature

Minimum temperature

Last temperature

Differential temperature

Last temperature

Average temperature

Go to

Last temperature

Thermocouple temperature

Last temperature

High alarm setpoint

Last temperature

Low alarm setpoint

Last temperature

Ambient target temperature

Last temperature

Last/stored temperature

Memory location

Disabled

Disabled

OS531 & OS532

OS530L, OS530HR

OS534, OS523, OS524

Recall Mode

°°

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

OS533

2-27

Using the Handheld Infrared Thermometer

2

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

3.6.2 Downloading Previously Stored Temperature Data
(OS534, OS523, OS524)

Up to 100 sets of stored temperature information can be
downloaded to a serial printer or a personal computer. Each set
of temperature information is broken down to the temperature
value, the Emissivity, and the high alarm setpoint for that
temperature.

1a. Turn on the Serial Printer and set the following

parameters:

Speed: 4800 BPS
Data: 8 Bits
One Stop Bit
No Parity

or

1b. Turn on the Personal Computer.

2. Connect the RS-232 cable between the thermometer and
the Serial Printer or Personal Computer as shown in
Figure 2-14 or Figure 2-15.

°F

°F

PRN

Calculated values

Set values

Using the Handheld Infrared Thermometer

2

2-28

°F

PRN

2-29

Using the Handheld Infrared Thermometer

2

3. To download stored temperature data points from the
thermometer, first make certain that it is not in printing
mode. Make sure that the IR_TEMPSOFT is installed
properly as explained in section 2.3.10.

4. On the main menu bar, click on “Command-> Download
Stored Data”. The “Stored Data” window will appear.

5. The “Stored Data Points” window will appear.

6. Click on the “START RECEIVING” button to bring the
program into receive mode. Release the trigger to put the
thermometer into sleep mode.

7. Press and hold the key until you see the Print Display
Mode (PRN) appear.

8. Press the key to start downloading the stored date to
the Personal Computer. The “PRN” icon appears on the

thermometer display. When the stored data is completely

downloaded, you will hear a peep and the “PRN” icon
disappears.

9. When the thermometer completes sending all its memory
content, a pop-up will appear.

10. From the “STORED DATA” window you can save the
display data to a text file or directly export it into a MS
Excel file.

The on-line Manual has more detailed information on all the
features of this software.

2.6.3 Reviewing Previously Stored Temperature Data
(OS534, OS523, OS524)

You can review all 100 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 100.

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 “----”.

4. To review other stored temperatures, repeat Steps 2
and 3.

If no keys are pressed, the thermometer goes into sleep
mode in approximately 10 seconds.

NOTE

°F

Using the Handheld Infrared Thermometer

2

2-30

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.

• KEEP OUT OF REACH OF ALL CHILDREN.

DO NOT ATTEMPT TO OPEN THE LASER SIGHTING.

(There are no user-serviceable parts in the module.)

Refer to the inside back cover for product warning label.

CAUTION

WARNING

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.

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 rear and front view of the thermometer with the

built-in laser sight module.

Laser
Dot/Circle
Switch

Figure 3-1. Rear View

of the Thermometer

Figure 3-2. Front View

of the Thermometer

Warning and

Certification

Label

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 again, 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.

Laser Dot Laser Circle

Figure 3-3. Two Laser Configurations

TM

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“ grove 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

Maintenance

5

5.1 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, the thermometer shuts down and 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

5

Maintenance

5.2 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.

5.3 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.

5.4 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

5-2

Troubleshooting Guide

6

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.

1. Reset the thermometer. It sets all
of the parameters to the default
values and restores calibration. The
procedure is as follows, when the
thermometer is in sleep mode:

a. Press and hold the key.
b. Pull the trigger.
c. Release the trigger.
d. Release the key.
e. The version of the software is

displayed for about 1 second.
The emissivity display mode
immediately follows with the
emissivity of 0.95.

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

- The thermometer
beeps intermittently.

- The thermometer
flashes

““

in the

Main Display.

6-1

Troubleshooting Guide

6

6-2

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 one Refer to Section 4.2.
reading.

2. Activate the Diagnostic Program in
the thermometer as follows:

a. Pull the trigger and press the

key to lock the trigger.

b. Hold down the key and

press the key until
“VER X.X” is displayed.

You can expect to see and hear the
following:

• You will see the version number
“VER X.X” of the software for about
1 second.

• You will hear a beep, “TST” is
displayed and °F flashes.

• 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.

☞

6-3

Troubleshooting Guide

6

Problem Solution

If you see an error code, either
“ERR1”, “ERR2”, or “ERR3”, record
the code and call our Customer
Service Department. Provide
Customer Service with the error
code that is displayed in the upper
left corner of the display. The
Customer Service Department
representative may ask you to return
the thermometer to the factory.

• The display will go back to the
Real Time Mode (Emissivity
Display Mode).

c. After running the diagnostic

program, press the key to
unlock the trigger.

1. The thermometer has to stabilize

before taking temperature
measurements. It takes up to 40
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.

☞

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.

Troubleshooting Guide

6

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).

Problem Solution

The trigger is pulled two times in
rapid sequence. Wait at least 2
seconds between two successive
trigger pulls. You may need to set
the emissivity, low alarm, high
alarm, target ambient temperature
values again.

The thermometer resets
itself unexpectedly.
The emissivity has been
reset to .95. All other
parameters are reset to
the default values.

6-4

Laser Sighting

Problem Solution

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.

Specifications

7

(Specifications are for all models except where noted)

THERMOMETER

Measuring: OS530HR, -22°F to 250°F (-30°C to 121°C)
Temperature OS531: 0°F to 750°F (–18°C to 400°C)
Range: OS530L,

OS533,OS532: 0°F to 1000°F (–18°C to 538°C)
OS534 0°F to 1600°F (–18°C to 871°C)
OS523 0°F to 2500°F (–18°C to 1371°C)
OS524

1000°F to 4500°F (538°C to 2482°C)

OS531: ±2% of reading or

3°F whichever is greater

All others ±1% of reading or

3°F whichever is greater
(2% Rdg for temp > 2000°F for OS524)

Field of Vision: OS531, OS532, OS530L 10:1

OS533, OS530HR 20:1
OS534 30:1
OS53x-CF .15"@6"
OS523-1 30:1
OS523-2 60:1
OS523-3 68:1
OS524 110:1

Repeatability: ± (1% rdg + 1 digit)
Resolution: 1°F or 1°C (0.1°F or °C for OS530HR)

Response Time: 250 msec
Spectral Response: 8 to 14 microns (2 to 2.5 microns, OS524)

(5 to14 microns, OS530L, OS531, OS532)

Thermocouple Input Type K, 0 to 1600°F (-18 to 871°C)

(OS532, OS533, OS534 only)
Input Connection SMP Connector
Thermocouple Display ±5°F (±3°C)

Accuracy @ 75°F (24°C)
Ambient Temperature

Thermocouple Display
Response Time 2 seconds

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

Operating Relative Humidity: 95% or less without condensation
Display: Backlit LCD dual display
Keypad: 4 position, tactile feed-back membrane switch

7-1

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

Specifications

7

7-2

Average Temperature
Accuracy Time Period
(under continuous operation): 111⁄2 days

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: (OS533, OS534, OS523, OS524)

RS232 Output (for Standard on OS533, OS534, OS523, OS524
personal computers 4800 bits per second, 8 bits of data,
and serial printers): 1 stop bit, no parity

RS-232 Cable: RJ12 to 25 pin D connector, Female

RJ12 Pin # 25 pin D connector Pin #
33

57

4 & 5 jumpered
6 & 20 jumpered

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

OS533, OS534 Low alarm standard, with
OS523, OS524: audible and visual indication

Data Storage: OS534,OS523 Up to 100 sets of data

OS524: points on command. Each

set of data consists of the
temperature, the Emissivity
and the high alarm value.

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, OS524)

7-3

Specifications

7

Analog Output Accuracy: ±2mV reference to temperature display
Power: 4 AA size 1.5 volt batteries (lithium or alkaline)
Battery Types

Alkaline: general brand

Lithium: Eveready Energizer, model number L91

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

ac adapter: Optional - available in 120 Vac or 220Vac

Class 2 Transformer, UL & CSA Listed
(Input voltage): 120Vac or 220Vac at 60 or 50 Hz
(Output voltage): 9Vdc at 200 mA
(Output plug [female]): Center positive, coax 2.5/5.5/12mm

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

(75°F) ambient temperature

(Without Laser Sighting): 60 hours (continuous operation)

(With Laser Sighting
Dot or Circle): 6 hours (continuous operation)

(With LCD backlighting and

no Laser Sighting): 17 hours (continuous

operation)

Lithium

Battery Life at 24°C

(75°F) ambient temperature

(Without Laser Sighting): 10 days (continuous operation)
(With Laser Sighting

Dot or Circle): 30 hours (continuous operation)
(With LCD backlighting and

no Laser Sighting): 3 days (continuous operation)

Tripod Mount:

1

⁄4”-20 UNC
Wrist Strap: Attached to the thermometer case
Soft Carrying Case: Standard
Dimensions: 8.6" x 6.6" x 2.0"

(218.4 x 167.6 x 50.8 mm)

Weight: 1.3 lbs (0.585 kg)

–

+

Specifications

7

7-4

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 OS523-3 models
Operating Temperature: 32°F to 122°F (0°C to 50°C)
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)

Glossary of Key Strokes

8

8-1

Key(s) Key(s) Functions

• Selects one of the following Display
Modes:

E , MAX, MIN, dIF, AVG, TC, HAL, LAL,
AMB, PRN or MEM.

• Locks/unlocks the trigger.

• Enables/disables High 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.

• 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 and hold down the

key & then press the • Allows you to go to the Diagnostic

Routine.

key

and keys • Allows you to erase all 100 stored

temperature data from the memory.

Glossary of Key Strokes

8

8-2

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 (-459°F, -273°C,
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

OBJECT

LENS

DETECTOR

OR

SIGNAL OUTPUT TO SERIAL PRINTER

OR PERSONAL COMPUTER

AMPLIFIER

THERMOMETER
CIRCUITRY AND

DISPLAY

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

DISTANCE

FOV

ANGLE

OBJECT "Y"

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 – 0.06

Aluminum

– heavily oxidized . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.20 – 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 – 0.36

Copper

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

Copper

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

Gold

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

Iron and steel (excluding stainless)

– polished iron . . . . . . . . . . . . 0.14 – 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

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

Iron and steel (excluding stainless)

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

Iron and steel (excluding stainless)

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

Lead

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

Mercury

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.09 – 0.12

Molybdenum filament

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.10 – 0.20

Nickel

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

Nickel

– oxidized at 1200°F – 2290°F . . . . . . . . . . . . . . . . . . . . 0.59 – 0.86

Platinum

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

Platinum

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

Silver

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

Stainless steel

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

Stainless steel

– Type 301 at 450°F – 1725°F . . . . . . . . . . . . . . . 0.54 – 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 – 1.00

Brick

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

Brick

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

Carbon

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

Carbon

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

Glass

- Pyrex, lead, soda . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.85 – 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 – 0.67

Paints, lacquers, and varnishes

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

Paints, lacquers, and varnishes

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

Porcelain

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

Quartz

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

Roofing Paper

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

Tape

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

Water

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.95 – 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 500°F
(260°C).

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 500°F (260°C).

2. Drill a 1.5” (35 mm) diameter hole in a sample of the object
material to a depth of 5” (127 mm). 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 ............. 1-6

Active Operation ...................... 2-8

Aiming Sight “V Groove” ....... 1-4

Alarms ........................... 2-14, 2-15

Alkaline Batteries ...... 2-1, 4-1, 6-3

Ambient Target Temperature

Compensation ...................... 2-16

Analog Output Jack ................. 1-6

B

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

Battery(s):

Compartment ................ 1-4, 2-1

Installing AA size ................. 2-1

Life of .................................... 6-3

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

Beeping Sound 2-14, 2-23, 4-1,

5-2, 6-3

C

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

Chart Recorder Hookup ......... 2-7

Computer:

Parameters:

Speed, Data, Parity,

Stop Bit ................... 2-17, 2-27

Personal, Hookup .............. 2-19

Program (IR_TEMPSOFT) ........

....................................2-19, 2-26

D

Diagnostic Program ................. 5-2

Differential Measurement ...... 2-6

Display

Icons:

ATC ........................ 1-5

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

HAL ....................... 1-5

LAL ........................ 1-5

LCK ........................ 1-5

LOBAT ...................1-5

PRN ........................ 1-5

Modes:

AMB ....................... 1-5

AVG ....................... 1-5

dIF .......................... 1-5

E ...............................1-5

HAL ....................... 1-5

LAL ........................ 1-5

MAX .......................1-5

MEM ...................... 1-5

MIN ........................ 1-5

PRN ........................ 1-5

Problems ............................... 5-1

E

Emissivities:

Adjusting ............................ 2-11

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

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

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

Erasing Temperature Data ... 2-24

Error Codes ....................... 5-2, 5-3

Index

I

I-2

F

Field of View:

Diagrams ....................... 2-3, 2-4

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

Fixed Point Monitoring over

Time Measurement ................ 2-7

G

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

H

High Alarm Value, setting ... 2-14

I

Icons:

ATC ....................................... 1-5

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

HAL........................................ 1-5

LAL ........................................ 1-5

LCK ........................................ 1-5

LOBAT .................................. 1-5

PRN ....................................... 1-5

Installing

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

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

J

Jacks

ac Adapter Input ................. 1-6

Analog Output ..................... 1-6

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

K

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

Keys:

▼ & °F-°C ....................... 1-4, 1-5

FUNC (Function) .......... 1-4, 1-5

LOCK (Lock) ................. 1-4, 1-5

▲ & ❍-●......................... 1-4, 1-5

Key Strokes ............................... 7-1

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 ...................... 5-1 - 5-4

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

Removing from

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

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

LCD, Backlit .............................. 1-4

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

Lines of Sight of the Module

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

Lithium Batteries ....... 2-1, 4-1, 6-3

Lock Function ......................... 2-11

Low Alarm Value, setting .... 2-15

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 ........... 2-18

Sleep Mode ....................... 2-5, 2-8,

.............2-12, 2-28, 5-1

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

Spot Measurement ................... 2-6

Static Surface Scan ................... 2-6

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

Storing Temperature Data .... 2-23

T

Temperature Data:

Erasing .................................2-24

Storing ................................. 2-23

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

Thermometer:

Front View..............................1-4

Rear View ..............................1-6

Tripod Thread Mount ...... 1-4, 1-6

V

“V” Groove Aiming Sight ...... 1-4

W

Wein’s Displacement Law ..... A-3

Wrist Strap ................................ 1-4

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 in which wear are not warranted, include but are 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, 6,267,500B1,
6,123,453, 6,341,891B1/Canada 75811 D OMEGA ENGINEERING, INC., 2,116,055, 2,114,806/Czech Republic 25372/France
0378411 to 0378446, 2,767,921, 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/Netherlands 1007752, 25009-00/Spain mod. ut. 133292/Slovak Republic 24565/U.K. Registered
2041153, 9726133.3, EPO 0 644408, EP 1 085 307 A1 Other U.S. and International 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 2006 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

M2891/0903

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