Omega Products OS-MINI-HA201-D-MA Installation Manual

User’s Guide

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MADE IN UNITED KINGDOM

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OS-MINI SERIES

Miniature Non-Contact Infrared

Temperature Sensors With

Separate Electronics Modules

OMEGAnet®On-Line Service Internet e-mail

omega.com [e-mail]

Servicing North America:

U.S.A.: OMEGA Engineering, Inc.

ISO 9001 Certified

One Omega Drive, P.O. Box 4047
Stamford, CT 06907-0047 USA
Toll-Free: 1-800-826-6342 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

Canada: 976 Bergar, Laval (Quebec), H7L 5A1 Canada

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

For immediate technical or application assistance:

U.S.A. and Sales Service: 1-800-826-6342/1-800-TC-OMEGA
Canada: Customer Service: 1-800-622-2378 1-800-622-BEST

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

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Mexico/ TEL: [phone] FAX: [phone]
Latin America e-mail: [e-mail]

Servicing Asia:

China: 1698 Yi Shan Road, Unit 102, Min Hang District

Shanghai, China 201103 P.R.C.
Hotline: [phone] 619 0059 e-mail: [e-mail]

Servicing Europe:

Benelux: Toll-Free: 0800 099 3344 TEL: [phone]

FAX: [phone] e-mail: [e-mail]

Czech Frystatska 184, 733 01 Karviná, Czech Republic
Republic: TEL: [phone] FAX: [phone]

e-mail: [e-mail]

France: Toll-Free: 0805 541 038 TEL: [phone]

FAX: [phone] e-mail: [e-mail]

Germany/
Austria:

Daimlerstrasse 26, D-75392 Deckenpfronn, Germany
Toll Free: 0800 832 6342Tel:+ 49 (0) 7056 9398-0
FAX: [phone] e-mail: [e-mail]

United OMEGA Engineering Ltd.
Kingdom: One Omega Drive

ISO 9001 Certified

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

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

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

The OS-Mini Series is a range of miniature non-contact infrared temperature sensors
with separate electronics modules.

All models have an adjustable emissivity setting and are capable of measuring a wide
variety of target materials, including food, paper, textiles, plastics, leather, tobacco,
pharmaceuticals, chemicals, rubber, coal and asphalt.

The optional touch screen interface provides temperature indication, alarms, sensor
configuration and data logging to MicroSD Card. The optional high-temperature
sensing head may be used in ambient temperatures of up to 180°C without cooling.
The low-noise cable on high ambient temperature models is resistant to interference
from movement, so it is ideal for mounting on moving objects such as robot arms.

A choice of optics are available to measure small or large targets at short or long
distances, and there is a choice of 4-20 mA, RS485 Modbus and alarm relay outputs.

SPECIFICATION

GENERAL

Temperature Range See table of Model Numbers
Maximum Temperature Span (-CRT models) 1020°C
Minimum Temperature Span (-CRT models) 100°C
Output 4 to 20 mA or RS485 Modbus
Field of View See table of Model Numbers
Accuracy ± 1°C or 1%, whichever is greater
Repeatability ± 0.5°C or 0.5%, whichever is greater
Emissivity Setting Range 0.20
Emissivity Setting Method MA models: via two rotary switches in electronics
module
C4 models: via RS485
MA-R-D & CR-R-D models: via touch screen
Response Time, t
Spectral Range 8 to 14 µm
Supply Voltage 24 V DC ± 5%
Maximum Current Draw 100 mA
Maximum Loop Impedance -CB and -CRT models: 900 Ω (4 to 20 mA output)
Alarm Relays (-CRT models) 2 x Single Pole Changeover alarm relays rated
24 V DC, 1 A, isolated 500 V DC

240 ms (90% response)

90

to 1.00

MECHANICAL

Sensing head Electronics Module
Construction
Major Dimensions
Mounting

Cable Length (sensing head to electronics module) 1 m (standard), up to 30 m (optional)
Weight with 1 m Cable 390 g (approx)
Cable Connections Removable screw terminal blocks (see

Output Cable Gland Suitable for cable diameters 3.0 to 6.5 mm

2

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Stainless Steel 316 Die-cast Aluminium

Ø18 x 45 mm 98(w) x 64(h) x 36(d) mm

M16 x 1 mm thread Two M4 screws for wall mounting (see

diagram)

Connections). Conductor size: 28 AWG to
18 AWG

ENVIRONMENTAL

Sensing Head Electronics Module

(without touch

Environmental Rating
Ambient Temperature

Range
Relative Humidity

CE Marked
RoHS Compliant

ELECTROMAGNETIC COMPATIBILITY STANDARDS:

Class Standard Description
EMC Directive

- Immunity IEC 61000-4-2

- Emissions

IP65 (NEMA 4) IP65 (NEMA 4) –
See table of Model

Numbers
Maximum 95%

non-condensing
Yes Yes Yes
Yes Yes Yes

EN61326-1:2006 Electrical equipment for measurement,

IEC 61000-4-3 Electromagnetic Field Immunity
IEC 61000-4-4 Burst Immunity
IEC 61000-4-5 Surge Immunity
IEC 61000-4-6 Conducted RF Immunity
EN 55022A RF Emissions Class A
EN 55022B RF Emissions Class B

screen)

0°C to 60°C 0°C to 60°C

Maximum 95%

non-condensing

control and laboratory use – Industrial
Electrostatic Discharge Immunity

Electronics Module

(with touch screen)

Maximum 95%

non-condensing

MODEL NUMBERS

The following combinations of ambient temperature range, optics, measured temperature range,
output and interface are available on OS-MINI sensors:

Series

OS-MINI

Sensing Head

Operating

Temperature Range

MA

HA 201

Field of View

212
152
302
802

Measurement

Temperature

Range

LT

MT

HT
XT

CT

HT
XT

CT

Output and

Interface

MA

MA-R-D

C4

C4-R-D

MA

MA-R-D

C4

C4-R-D

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3

SENSING HEAD OPERATING TEMPERATURE RANGE

-MA 0°C to 60°C

-HA 0°C to 180°C

The high ambient temperature sensing head on -HA models is capable of withstanding
temperatures of up to 180°C without cooling. It is available with 20:1 optics.

There is no need to supply cooling air or water, and the miniature sensing head is much smaller than
bulky, cooled sensors.

FIELD OF VIEW

Distance: Sensor to object (inches)

0 4 8

(inches)

Spot Dia.

0.5

11.9

(mm)

Spot Dia.

0

2.4

61.9

100 200

Distance: Sensor to object (mm)

4.4

111.9

Distance: Sensor to object (inches)

0 19.7 39.4

(inches)

Spot Dia.

(mm)

Spot Dia.

0.5

11.9

0

1.8

45.2

500 1000

Distance: Sensor to object (mm)

212 152

Distance: Sensor to object (inches)

0 19.7 39.4

(inches)

Spot Dia.

0.5

11.9

(mm)

Spot Dia.

0 500 1000

1.1

28.6

Distance: Sensor to object (mm)

302

1.8

D:S 30:1

45.2

Distance: Sensor to object (inches)

0

(inches)

Spot Dia.

0.5

11.9

(mm)

0

Spot Dia.

Distance: Sensor to object (mm)

802

3.9

0.20

5.0

100

MEASUREMENT TEMPERATURE RANGE (°C)

-LT

-MT

-HT

-XT

-CT

-20

0 100

Fixed (e.g. -MT: 0°C @ 4 mA, 250°C @ 20 mA)

MA-R-D models: 4 to 20 mA output configurable within this range
C4-R-D models: Digital output, full temperature range

250 500 1000

Distance: Sensor to object (inches)

3.1

D:S 15:1D:S 2:1

78.6

0 19.7 39.4

(inches)

Spot Dia.

0.5

11.9

(mm)

Spot Dia.

0 500 1000

1.5

36.9

Distance: Sensor to object (mm)

2.5

D:S 20:1

61.9

201

7.9

0.49

12.5

200

Diameter of target

spot measured versus

distance from sensing

head at 90% energy

OUTPUT AND INTERFACE

MA 4 to 20 mA output, no touch screen
MA-R-D 4 to 20 mA output and two alarm relay outputs, with touch screen
C4 RS485 Modbus output, no touch screen
C4-R-D RS485 Modbus output and two alarm relay outputs, with touch screen

4

›

EXAMPLE: OS-MINI 302-CT-C4-R-D

BRT

Series Sensing Head

Operating
Temperature

OS-MINI -MA 0°C to 60°C -302 30:1

Optics Temperature

Range

-CT

divergent

within the limits:

-20 to 1000 °C

Output and

Interface

C4-R-D

Modbus output and two
alarm relay outputs, with
touch screen

RS485

EMISSIVITY ADJUSTMENT (-CB MODELS)

The emissivity setting on OS-MINI with MA output models may be adjusted via two rotary
switches inside the electronics box. To adjust the emissivity setting:

Set the left switch to the first digit after the decimal point (0.1).
Set the right switch to the second digit after the decimal point (0.01).

To enter an emissivity setting of 1.00, set both switches to 0.

The minimum emissivity setting is 0.2. If a lower emissivity setting is selected, the sensor will default
to an emissivity setting of 0.95.

For example:

Left switch Right switch Emissivity setting

6 3 0.63

0 0 1.00

TOUCH SCREEN (MA-R-D and C4-R-D MODELS)

The optional backlit touch screen interface mounted in the lid of the electronics module provides a
large, bright display of the measured temperature, as well as options for full configuration of the
sensor. The graph view shows the history of the measured temperature.

In alarm conditions, the display changes colour to provide an immediate and obvious alarm
indication. Alarm modes and levels can be configured via the touch screen.

TOUCH SCREEN SPECIFICATIONS

Touch Screen Display Format 2.83” (72 mm) resistive touch TFT, 320 x 240 pixels, backlit

Temperature range, temperature units, emissivity setting,

Modbus address (-BRT models), date and time, data logging
Temperature Units
Temperature Resolution 0.1°

HI or LO. Alarm 2 can be set to target temperature or sensing

head internal temperature
Signal Processing Average, peak hold, valley hold, minimum, maximum

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5

USER INTERFACE

Default View

Setting
Temperature
Units

Selecting
Displayed
Temperature

Temperature View

Displays a large indication of the measured temperature. The background
turns bright red when an alarm is activated.

Press “°C” to switch to °F and vice versa. The units are changed throughout
the interface.

Press the temperature display to select which reading is shown:

Filtered Temp

The measured temperature, with averaging and hold processing. This
temperature is output by the sensor on the 4 to 20 mA output (-CB and -CRT
models).

Average Temp

The measured temperature with averaging but without hold processing.

Unltered Temp

The unprocessed measured temperature.
MicroSD Card status.

This icon is displayed when an SD card is inserted, and ashes when data

logging is in progress.

This icon is displayed when scheduled data logging is enabled and has yet
to begin.

List View

Displays a list of the measured temperatures, alarm state and data logging
state.

Filtered Temp: The measured temperature, with averaging and hold
processing.

Unltered Temp: The unprocessed measured temperature.

Average Temp: The Unltered Temperature averaged over the period
specied in “Output Processing”.

Maximum Temp: The highest temperature measured during the hold period,
with averaging.

Minimum Temp: The lowest temperature measured during the hold period,
with averaging.

Sensor Temp: The internal temperature of the sensing head.

Reected Temp: The reected energy compensation temperature, as
specied in “Emissivity and Compensation”.

6

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