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Calex ExTemp intrinsically safe infrared temperature sensor, ATEX and IECEx certified

Calex ExTemp intrinsically safe infrared Thermometer with ATEX and IECEx rating makes it suitable for many applications in hazardous areas.
Part Number: ExTemp
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Features

• Temperature range: -20°C to 1000°C

• ATEX and IECEx certified up to Zone 0 (gas) and Zone 20 (dust)

• 4-20 mA output, two-wire, loop-powered

• Supplied with up to 25 m cable

• Cable may be extended even further (subject to safety requirements) - cable runs could extend all the way back to the control room

• Stainless steel 316 housing, ideal for offshore applications

Typical Applications

The ExTemp's IIC T4, IIIC T135°C, ATEX and IECEx rating makes it suitable for many applications in hazardous areas, including:

  • Petrochemical - condition monitoring

    Bearing, gearbox and motor housing surface temperatures in refineries and chemical plants can be monitored without contact, eliminating the need to replace contact probes that are easily damaged by vibration.

  • Petrochemical - liquid storage and processing

    The sensor can be positioned in a Zone 0 environment such as the top of a tank of hazardous liquid or reactor, to measure the surface temperature of the liquid.

  • Paper

    Dust in pulp, paper and packaging plants can create a fire and explosion hazard. The ExTemp intrinsically safe pyrometer can be used for paper web temperature measurement and condition monitoring in ATEX and IECEx classified hazardous areas.

  • Coal conveyors

    The ExTemp's fast 240 ms response time makes it ideal for measuring the surface temperature of coal on conveyors, as well as other bulk materials where there is an explosive dust hazard.

  • Gas cylinder filling

    The surface temperature of cylinders of explosive gases is monitored with the ExTemp as they are filled. The Group IIC, T4 classification makes it suitable for almost all gases including propane, butane, hydrogen and acetylene. The temperature of each cylinder is measured on the filling rig to help detect fault conditions in filling, to calculate the final filled volume (in conjunction with the pressure), to ensure the volume is repeatable, and to improve the filling rate.

  • Automotive painting

    Solvents in automotive painting can create a gas explosion risk. The intrinsically safe ExTemp may be used to monitor the temperature of containers and vessels, the surface temperature of liquids and powders, and the temperature of painted surfaces.

  • Offshore

    The ExTemp's 316 stainless steel housing and intrinsically safe certification makes it well-suited for use on offshore platforms. As well as measuring the temperature of surfaces on the rig, it can be used to measure the temperature of the sea surface.

The ExTemp pyrometer may be used in many more applications than those listed above. For more information on using this sensor in your application, or for help in choosing the most suitable model, please contact OneTemp.

 

Features

• Temperature range: -20°C to 1000°C

• ATEX and IECEx certified up to Zone 0 (gas) and Zone 20 (dust)

• 4-20 mA output, two-wire, loop-powered

• Supplied with up to 25 m cable

• Cable may be extended even further (subject to safety requirements) - cable runs could extend all the way back to the control room

• Stainless steel 316 housing, ideal for offshore applications

Typical Applications

The ExTemp's IIC T4, IIIC T135°C, ATEX and IECEx rating makes it suitable for many applications in hazardous areas, including:

  • Petrochemical - condition monitoring

    Bearing, gearbox and motor housing surface temperatures in refineries and chemical plants can be monitored without contact, eliminating the need to replace contact probes that are easily damaged by vibration.

  • Petrochemical - liquid storage and processing

    The sensor can be positioned in a Zone 0 environment such as the top of a tank of hazardous liquid or reactor, to measure the surface temperature of the liquid.

  • Paper

    Dust in pulp, paper and packaging plants can create a fire and explosion hazard. The ExTemp intrinsically safe pyrometer can be used for paper web temperature measurement and condition monitoring in ATEX and IECEx classified hazardous areas.

  • Coal conveyors

    The ExTemp's fast 240 ms response time makes it ideal for measuring the surface temperature of coal on conveyors, as well as other bulk materials where there is an explosive dust hazard.

  • Gas cylinder filling

    The surface temperature of cylinders of explosive gases is monitored with the ExTemp as they are filled. The Group IIC, T4 classification makes it suitable for almost all gases including propane, butane, hydrogen and acetylene. The temperature of each cylinder is measured on the filling rig to help detect fault conditions in filling, to calculate the final filled volume (in conjunction with the pressure), to ensure the volume is repeatable, and to improve the filling rate.

  • Automotive painting

    Solvents in automotive painting can create a gas explosion risk. The intrinsically safe ExTemp may be used to monitor the temperature of containers and vessels, the surface temperature of liquids and powders, and the temperature of painted surfaces.

  • Offshore

    The ExTemp's 316 stainless steel housing and intrinsically safe certification makes it well-suited for use on offshore platforms. As well as measuring the temperature of surfaces on the rig, it can be used to measure the temperature of the sea surface.

The ExTemp pyrometer may be used in many more applications than those listed above. For more information on using this sensor in your application, or for help in choosing the most suitable model, please contact OneTemp.

 

Hazardous Area Classification

ATEX Classification
Ex II 1GD

IECEx Classification (Gas)
Ex ia IIC T4 Ga

IECEx Classification (Dust)
Ex ia IIIC T135°C IP65 Da

Ambient Temperature Rating
-20°C ≤ Ta ≤ 70°C

Maximum DC Input Voltage
Ui = 28 V

Maximum Input Current
Ii = 93 mA

Maximum Input Power
Pi = 650 mW

Maximum Internal Capacitance
Ci = 8 nF

Maximum Internal Inductance
Li = 0 mH

ATEX Certificate Number
CML 14ATEX2079

IECEx Certificate Number
IECEx CML 14.0032

General Specifications

Temperature Range
Configurable from -20°C to 1000°C via optional USB adapter; pre-set to a choice of ranges between these limits (see Ordering)

Maximum Temperature Span
1000°C

Minimum Temperature Span
100°C

Output
4 to 20 mA

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 (pre-set to 0.95)

Emissivity Setting Method
User configurable via USB interface

Response Time, t90
240 ms (90% response)

Spectral Range
8 to 14 μm

Supply Voltage
12 to 24 V DC ± 5%

Maximum Current Draw
25 mA

Maximum Loop Impedance
See Application Guide (available separately)

Mechanical Specifications

Construction
Stainless Steel 316

Major Dimensions
Ø 20 mm x length 150 mm (see Installation)

Mounting
M20 x 1.5 mm thread, length 46 mm, supplied with two mounting nuts

Cable Length
5 m, 10 m or 25 m as standard (custom lengths are also available)

Weight with 5 m Cable
475 g

Environmental Specifications

Environmental Rating
IP65 (NEMA 4)

Ambient Temperature Range
0°C to 70°C (Operating range)

Relative Humidity
Max. 95% non-condensing

CE Marked
Yes

RoHS Compliant
Yes

Field of View Diagrams

Diagram of 2:1 Optics

Diagram of 15:1 Optics

Diagram of 30:1 Optics

Diagram of Close Focus Optics

Note: The given measured spot size contains 90% of the energy detected by the sensor. We normally recommend the target is at least twice as large as the given measured spot for maximum accuracy.

Sensors may be used at longer distances than the above diagrams show. There is no maximum measurement distance in clean air; this is because Calex sensors detect only the wavelengths of infrared radiation that are not absorbed by the atmosphere.

Electrical Installation

ExTemp Connection Diagram

Note: More information about the electrical installation of the ExTemp, including pin numbering for the MTL 5541 isolator, is available in the data sheet and manual.

Dimensions (mm)

ExTemp dimensions

Note: The cable may be extended even further than the 5 m, 10 m or 25 m standard length by the user, subject to safety requirements. Please contact OneTemp for more information.

Ordering

Accessories for this instrument listed below

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