Omega Products OS150 USB 2.2 Installation Manual

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User’s Guide

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MADE IN UNITED KINGDOM

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OS150 USB 2.2

IR Temperature Sensors

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ISO 9002 Certified Northbank, Irlam, Manchester

It is the policy of OMEGA Engineering, Inc.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 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.

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OS150 USB 2.2 Series non-contact infrared sensors measure temperatures from 45°C

3.8 (98.0)

4.2 (106.5)

0.6

(15.0)

1.0 (25.0)

M20 x 1mm

36.0 (1000.0)

(standard length)

to 2000°C and provide a linear 0 to 20 or 4 to 20 mA output. The signal is compatible
with almost any indicator, controller, recorder, data logger etc., without the need for
special interfacing or signal conditioning. They are especially suited to low-emissivity
targets such as steel rollers and other metal surfaces, even at low temperatures.

Specification

GENERAL

Temperature Range LT: 45°C* to 300°C (OS151-2USB-LT only)
PT: 100 to 400ºC (OS151-2USB-PT only)
MT: 250°C to 1000°C
HT: 450°C to 2000°C
Output 4 to 20 mA, 0 to 20 mA
(linear with temperature, adjustable via software)

Accuracy* ±1% of reading or ±2°C whichever is greater
Repeatability* ±0.5% of reading or ±0.5°C whichever is greater
Emissivity 0.1 to 1.0, adjustable via software
Response Time ≥ 240 ms (90% response)
Field-of-View 15:1 (OS151-2USB-LT or PT)

25:1 (OS251-2USB-MT or HT)
75:1 (OS751-2USB-MT or HT)
ø7.5mm @ 500mm (OS801-2USB-MT or HT)

Spectral Response 2.0 to 2.4 µm
Supply Voltage 24 V DC (26 V DC max.)
Sensor Voltage 11 V DC min.
Maximum Loop Impedance 900 ohms @ 24 V DC

MECHANICAL

Construction Stainless Steel
Dimensions 25 mm diameter x 106.5 mm
Output Cable Length 1 m (longer cable available to order)
USB Cable Length 1 m
Weight with Output Cable 175 g

ENVIRONMENTAL

Environmental Rating IP65
Ambient Temperature Range 0°C to 70°C
Relative Humidity 95% maximum non-condensing
Electromagnetic Compatibility EN61326-1:2006 Industrial (analogue output only)

EN61326-1:2006 Basic (USB)

* Object temperature > T

(see graph of Minimum Measurable Temperature on page 9)

min

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3

acceSSorieS

Distance: Sensor to object (inches)

Distance: Sensor to object (mm)

15

60

135

0.6

2.4

5.3

0 59.1 118.1

0 1500 3000

Spot Dia.

(inches)

Spot Dia.

(mm)

Spot Dia.

(inches)

Spot Dia.

(mm)

Distance: Sensor to object (inches)

Distance: Sensor to object (mm)

15

100

215

0.6

3.9

8.5

0 59.1

118.1

59.1

118.1

0 1500 3000

0 1500 3000

D:S 25:1D:S 15:1

OS251-2USB

Distance: Sensor to object (inches)

Distance: Sensor to object (mm)

15

20

55

0.6

0.8

2.2

0

Spot Dia.

(inches)

Spot Dia.

(mm)

D:S 75:1

OS751-2USB

OS151-2USB

Spot Dia.

(inches)

Spot Dia.

(mm)

Distance: Sensor to object (inches)

Distance: Sensor to object (mm)

15

7.5
30

0.6

0.3

1.2

0 19.7 39.4

0 500 1000

OS801-2USB

A range of accessories to suit different applications and industrial environments is
available. These may be ordered at any time and added on-site. The accessories
consist of the following parts .
Fixed mounting bracket
Adjustable mounting bracket
Air purge collar
Laser sighting tool

optionS

The following options are available. Options are factory installed and must be ordered
with the OS150 USB 2.2 sensor.
Air/water cooled housing
Certificate of calibration
Longer cable (30 m max.)

opticaL cHart

The optical chart below indicates the nominal target spot diameter at any given
distance from the sensing head and assumes 90% energy.

4

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