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PyroMini 2.2 Two-part Pyrometer for High Temperature Targets and Metals

Miniature Infrared Temperature Sensor for Demanding Applications with Optional Touch Screen. 100 to 2000Deg C
Part Number: PyroMini 2.2
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Features

  • Temperature ranges from 100°C to 2000°C
  • Short wavelength measurement for better accuracy on reflective targets such as many metals
  • 4-20 mA or RS485 Modbus outputs
  • Miniature sensing head and configurable electronics module
  • Touch screen interface (optional)
  • Data logging to MicroSD Card (optional)

The PyroMini 2.2 combines the unique interface and output features of the PyroMini with a short-wavelength spectral response. It is ideal for demanding industrial applications where the target temperature is very high, or where the target surface has a low emissivity, for example many types of metal. For example, applications include the following:

Typical Applications

 
Steel industry
Short-wavelength 2.2 μm sensors are better-suited to measuring steel surface temperature than general-purpose 8 to 14 μm models. Contact Calex for advice on measurement locations on annealing lines, furnaces, rolling mills and railway rail manufacturing.

Food Industry
Hot stainless steel surfaces above 100°C can be measured quickly and accurately with the PyroMini 2.2. Applications include burner control in conveyor ovens and dryers.

Paper
Dryer cylinder surface temperatures exceeding 100°C (such as in linerboard manufacturing) may be measured directly with the PyroMini 2.2. See also the PyroUSB 2.2 for temperatures below 100°C (in the manufacture of finer paper types).
 

Features

  • Temperature ranges from 100°C to 2000°C
  • Short wavelength measurement for better accuracy on reflective targets such as many metals
  • 4-20 mA or RS485 Modbus outputs
  • Miniature sensing head and configurable electronics module
  • Touch screen interface (optional)
  • Data logging to MicroSD Card (optional)

The PyroMini 2.2 combines the unique interface and output features of the PyroMini with a short-wavelength spectral response. It is ideal for demanding industrial applications where the target temperature is very high, or where the target surface has a low emissivity, for example many types of metal. For example, applications include the following:

Typical Applications

 
Steel industry
Short-wavelength 2.2 μm sensors are better-suited to measuring steel surface temperature than general-purpose 8 to 14 μm models. Contact Calex for advice on measurement locations on annealing lines, furnaces, rolling mills and railway rail manufacturing.

Food Industry
Hot stainless steel surfaces above 100°C can be measured quickly and accurately with the PyroMini 2.2. Applications include burner control in conveyor ovens and dryers.

Paper
Dryer cylinder surface temperatures exceeding 100°C (such as in linerboard manufacturing) may be measured directly with the PyroMini 2.2. See also the PyroUSB 2.2 for temperatures below 100°C (in the manufacture of finer paper types).
 

Accessories for this instrument listed below

General Specifications

Temperature Range

PT models: 100°C to 400°C
MT models: 250°C to 1000°C
HT models: 450°C to 2000°C

Max. Temperature Span (-CRT models)

Full temperature range (up to 1550°C)

Min. Temperature Span (-CRT models)

100°C

Output

4-20 mA or RS485 Modbus (Up to 247 sensors may be installed on a single Modbus network)

Field of View

Choice of wide-angle or focussed optics (see Field of View Diagrams below)

Accuracy

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

Repeatability

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

Emissivity Setting

Adjustable, 0.10 to 1.00

Emissivity Setting Method

-CB models: via two rotary switches in electronics module 
-BB and -BRT models: via RS485 Modbus
-CRT and -BRT 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

Max. Loop Impedance (-CB and -CRT models)

900 Ω (4-20 mA output)

Alarm Relays (-CRT and -BRT models)

2 x Single Pole Changeover alarm relays, rated 24 V DC, 1 A, isolated 500 V DC

 

Data Logging Specifications

Data Logging Interval

1 to 86,400 seconds (1 day)

MicroSD Card

Max. capacity: 32 GB (not included)

Internal Clock Battery

1 x BR 1225 3V (not included)

Variables Logged

Target temperature, sensing head temperature, electronics module temperature, max, min, average, emissivity setting, reflected energy compensation Temperature, alarm events

File format

.csv

Configurable Parameters

Sample period, number of samples, scheduled start date and time

 

Touch Screen Interface Specifications

Touch Screen Display Format

2.83” (72 mm) 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 configurable

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

 

Field of View Diagrams

Please note: The given measured spot diameter contains 90% of the energy detected by the sensor. For maximum accuracy, we normally recommend the target is at least twice as large as the given measured spot. The sensor may be used at longer distances than shown above. In clean air there is no maximum measurement distance, and the distance does not affect the sensor's measurement accuracy; this is because the sensor is filtered to detect only the wavelengths of IR that are not absorbed by the atmosphere.

 

Mechanical Specifications

Construction (Sensing Head)

Stainless Steel 316

Construction (Electronics Module)

Die Cast Aluminium

Major Dimensions (Sensing Head)

18(dia.) x 45(l) mm (see Installation)

Major Dimensions (Electronics Module)

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

Mounting (Sensing Head)

M16 x 1 mm thread

Mounting (Electronics Module)

Requires two M4 screws for wall mounting (see Installation)

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 Specifications

Sensing Head

Electronics Module (without touch screen)

Electronics Module (with touch screen)

Environmental Rating

IP65 (NEMA 4)

IP65 (NEMA 4)

Ambient Temperature Range

0°C to 70°C

0°C to 60°C

0°C to 60°C

Relative Humidity

Maximum 95% non-condensing

Maximum 95% non-condensing

Maximum 95% non-condensing

CE Marked

Yes

Yes

Yes

RoHS Compliant

Yes

Yes

Yes

 

Electromagnetic Compatibility Standards

The PyroMini 2.2 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.

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