Omega OS-MINI SERIES Manuale utente

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User’s Guide

with

Optional

Touch

Screen

Display

Miniature Fixed Infrared

Sensor with Optional Touch

Screen Display

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.

Servicing North America:

U.S.A. Omega Engineering, Inc.

Headquarters: 800 Connecticut Ave. Suite 5N01, Norwalk, CT 06854

Toll-Free: 1-800-826-6342 (USA & Canada only)

Customer Service: 1-800-622-2378 (USA & Canada only)

Engineering Service: 1-800-872-9436 (USA & Canada only)

Tel: (203) 359-1660 Fax: (203) 359-7700

e-mail: [email protected]

For Other Locations Visit omega.com/worldwide

omega.com [email protected]

UNRESTRICTED

The OS-Mini and OS-Mini22 are a range of miniature, non-contact infrared temperature sensors with

separate electronics modules.

All OS-Mini 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.

All OS-Mini22 models use a short measurement wavelength for greater accuracy, and improved tolerance

of optical obstructions or errors in emissivity setting, than long-wavelength sensors.

The optional touch screen interface for OS-Mini and OS-Mini22 provides temperature indication, alarms,

sensor configuration and data logging to MicroSD Card. For OS-Mini models specifically, an 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.

Different choices 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.

OS-MINI SPECIFICATIONS

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 to 1.00

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, t90

240 ms (90% response)

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

MECHANICAL

Sensing head

Electronics Module

Construction

Stainless Steel 316

Die-cast Aluminum

Major Dimensions

Ø18 x 45 mm

98(w) x 64(h) x 36(d) mm

Mounting

M16 x 1 mm thread

Two M4 screws for wall mounting (see diagram)

UNRESTRICTED

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

Connections). Conductor size: 28 AWG to 18

AWG

Output Cable Gland

Suitable for cable diameters 3.0 to 6.5 mm

ENVIRONMENTAL

Sensing Head

Electronics Module

(without touch

screen)

Electronics Module

(with touch screen)

Environmental Rating

IP65 (NEMA 4)

–

Ambient Temperature

Range

See table of Model

Numbers

0°C to 60°C

Relative Humidity

Maximum 95%

non-condensing

Maximum 95%

non-condensing

Maximum 95% non-

condensing

CE Marked

Yes

RoHS Compliant

Yes

ELECTROMAGNETIC COMPATIBILITY STANDARDS:

Class

Standard

Description

EMC Directive

EN61326-1:2006

Electrical equipment for measurement, control

and laboratory use –Industrial

- Immunity

IEC 61000-4-2

Electrostatic Discharge Immunity

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

- Emissions

EN 55022A

RF Emissions Class A

EN 55022B

RF Emissions Class B

MODEL NUMBERS

The following combinations of ambient temperature range, optics, measured temperature range, output and

interface are available on OS-MINI sensors:

Series

Sensing Head

Operating

Temperature Range

Field of View

Measurement

Temperature Range

Output and

Interface

OS-MINI

212

152

302

802

MA-R-D C4

C4-R-D

201

HT XT

MA-R-D C4

C4-R-D

UNRESTRICTED

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.

UNRESTRICTED

OS-MINI22 SPECIFICATIONS

GENERAL

MECHANICAL

Sensing head

Electronics Module

Construction

Stainless Steel 316

Die-cast Aluminum

Major Dimensions

Ø18 x 45 mm

98(w) x 64(h) x 36(d) mm

Mounting

M16 x 1 mm thread

Requires two M4 screws for wall mounting (see

diagram)

Temperature Range

PT models: 100°C to 400°C

MT models: 250°C to 1000°C

HT models: 450°C to 2000°C

Maximum Temperature Span (-CRT models)

Full temperature range (up to 1550°C)

Minimum Temperature Span (-CRT models)

100°C

Output

4 to 20 mA or RS485 Modbus (up to 247 sensors

may be installed on a single Modbus network)

Field of View

See table of Model Numbers

Accuracy

± 2°C or 1% of reading, whichever is greater

Repeatability

± 0.5°C or 0.5% of reading, whichever is greater

Emissivity Setting Range

0.10 to 1.00

Emissivity Setting Method

-CB models: via two rotary switches in

electronics module

-BB and -BT models: via RS485

-CRT and -BT models: via touch screen

Response Time, t90

≥ 240 ms (90% response)

Spectral Range

2.0 to 2.6 µm

Supply Voltage

24 V DC ± 5%

Maximum Current Draw

100 mA

Maximum

-CB AND -CRT models: 900 Ω (4 to 29 mA output)

Alarm Relays (-CRT models)

2 x Single Pole Changeover alarm relays rated

24 V DC, 1 A, isolated 500 V DC

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

Connections). Conductor size: 28 AWG to 18

AWG

Output Cable Gland

Suitable for cable diameters 3.0 to 6.5 mm

UNRESTRICTED

ENVIRONMENTAL

Sensing Head

Electronics Module

(without touch screen)

Electronics Module

(with touch screen)

Environmental Rating

IP65 (NEMA 4)

–

Ambient Temperature

Range

0°C to 70°C

0°C to 60°C

Relative Humidity

Maximum 95%

non-condensing

Maximum 95%

non-condensing

Maximum 95% non-

condensing

CE Marked

Yes

RoHS Compliant

Yes

ELECTROMAGNETIC COMPATIBILITY STANDARDS:

The OS-MINI22 series conforms to EMC Directive EN61326-1:2006 (Electrical equipment for

measurement, control and laboratory use –Industrial) as well as industrial standards for electromagnetic

immunity and emissions.

MODEL NUMBERS

Series

Field of View

Measurement Temperature

Range

Output and Interface

OS-MINI22

SN151

CRT

BRT

SN251

SN751

SNCF

MT HT

UNRESTRICTED

OUTPUT, INTERFACE, EMISSIVITY ADJUSTMENT DETAILS

OUTPUT AND INTERFACE (OS-MINI and OS-MINI22)

OS-MINI Model

OS-MINI22 Model

Details

-MA

-CB

4 to 20 mA output, no touch screen

-MA-R-D

-CRT

4 to 20 mA output and two alarm relay outputs, with touch

screen

-C4

-BB

RS485 Modbus output, no touch screen

-C4-R-D

-BRT

RS485 Modbus output and two alarm relay outputs, with touch

screen

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

Series

Sensing Head

Operating

Temperature

Optics

Temperature Range

Output and Interface

OS-MINI

MA 0°C to 60°C

302 30:1

divergent

CT configurable

within the limits:

-20 to 1000 °C

C4-R-D RS485

Modbus output and two

alarm relay outputs, with

touch screen

EXAMPLE: OS-MINI22-SN251-MT-BRT

Series

Field of View

Measurement

Temperature Range

Output and Interface

OS-MINI22

SN251 25:1

divergent optics

MT 250°C to 1000°C

BRT RS485 Modbus output and two

alarm relay outputs, with touch screen

-CB models: Fixed 4 to 20 mA output scale (e.g. -MT: 250°C @ 4 mA, 1000°C @ 20 mA)

-CRT models: 4 to 20 mA output is configurable within this range.

-BB and -BRT models: Digital output, full temperature range

000

200

MEASUREMENT TEMPERATURE RANGE (°C)

UNRESTRICTED

EMISSIVITY ADJUSTMENT (-MA and -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:

1. Set the left switch to the first digit after the decimal point (0.1).

2. 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

0.63

1.00

TOUCH SCREEN (-MA-R-D, -C4-R-D, -CRT AND -BRT 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 color 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” (72mm) resistive touch TFT, 320 x 240

pixels. backlit

Configurable Parameters

Temperature range, temperature units. Emissivity

setting, reflected energy compensation, alarms,

signal processing, Modbus address (-BRT

models), date and time, data logging

Temperature Units

°C or °F

Temperature Resolution

0.1°

Alarm Configuration

Two alarms with adjustable level, individually

configurable as 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

UNRESTRICTED

OS-MINIUSB SPECIFICATIONS

The OS-MINIUSB is a simple, compact infrared temperature sensor with USB communications. It measures

the surface temperature of a variety of materials without contact.

The included software is intuitive and easy to use, and the open Modbus protocol allows users to connect

directly to the sensor using software of their own design.

The sensor’s rugged construction makes it ideal for benchtop, laboratory and education applications.

GENERAL

Accuracy

±1% of reading or ±1ºC whichever is greater

Repeatability

± 0.5% of reading or ± 0.5ºC whichever is greater

Emissivity

0.2 to 1.0

Response Time, t90

125 ms (90% response)

Spectral Range

8 to 14 µm

Supply Voltage

5 V DC (provided by USB)

Supply Current

50 mA max.

VIRTUAL COM PORT

Baud Rate

9600 baud*

Format

8 data bits, no parity, 1 stop bit *

Protocol

Modbus over Serial Line

*Other configurations available upon request

CONFIGURATION

Configuration Method

Via USB using included Windows software or Modbus

Configurable Parameters

Emissivity Setting, Averaging, Reflected Energy Compensation

MECHANICAL

Construction

Stainless Steel

Dimensions

18 mm diameter x 45 mm long (excluding cable gland)

Thread Mounting

M16 x 1 mm pitch

Cable Length

1 m standard, longer cable available to order

Weight with 1 m Cable

85 g

ENVIRONMENTAL

Environmental Rating

IP65

Ambient Temperature

0ºC to 75ºC

Relative Humidity

95% max. non-condensing

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