THERMOSTAT

Ex-TC-Lt Electronic Temperature Controller

The electronic temperature controller Ex-TC was developed for use in potentially explosive atmospheres. We offer different variants for different purposes, for wall mounting or for fastening onto pipelines. Choose between a temperature controller with alarm relay, a variant with RS 485 interface with Modbus protocol or a controller-limiter combination with alarm relay. The device is able to switch high nominal currents and with its round shape it ensures optimum mechanical safety. The cover closes quickly with a snap lock, making it easy to handle where it is used. All variants are suitable for use with our self-regulating heating cables (ELSR) and resistance heating cables (ELK, ELP).

Applications:

• Potentially explosive areas
• Power plants
• Chemical industry
• Petrochemical industry
• Oil and gas industry
• Pharmaceutical industry
• Plastics industry
• Process technology

Advantages:

• Three function options
• No static charging
• Cover can be closed quickly
• Easy to work with
• High mechanical safety and reliability
• Modular design
• Easy setup and easy operation

Approvals:

• II 2D Ex ib tb IIIC T85°C
• Db II 2G Ex eb ib mb IIC T6 Gb
• IBExU20ATEX1015X
• IECEx IBE 20.0002X
• UKEx CML 21UKEX3952X

Ex-TC-10 - Electronic Temperature Control Device

The electronic temperature controller Ex-TC-10 features a wide setpoint temperature range from 0 °C to +450 °C. The ambient temperature range is between –55 °C and +50 °C. The controller was developed for use in potentially explosive atmospheres. Typical applications include frost protection and temperature maintenance. Choose between a temperature controller with alarm relay, a variant with RS 485 interface with Modbus protocol or a controller-limiter combination with alarm relay. The device is able to switch high nominal currents and ensures optimum mechanical safety. The cover closes quickly, making it easy to handle where it is used. All variants are suitable for use with our self-regulating heating cables (ELSR) and resistance heating cables (ELK), as well as mineral-insulated heating cables (MI).

Applications:

• Potentially explosive areas
• Power plants
• Chemical industry
• Petrochemical industry
• Oil and gas industry
• Pharmaceutical industry
• Plastics industry
• Process technology

Advantages:

• Three function options
• Non-conductive and UV-resistant housing
• Easy setup and easy operation

Approvals:

• II 2D Ex ib tb IIIC T85°C Db
• II 2G Ex eb ib mb IIC T6 Gb
• IBExU20ATEX1015X
• IECEx IBE 20.0002X
• UKEx CML 21UKEX3952X

ELTC/ Type Electronic Temperature Controller

The electronic temperature controller type ELTC/ is designed for use as an ambient thermostat or surface thermostat with remote sensor. Cable glands and terminations are provided for the power connection. The unit is supplied in a weather proof polycarbonate casing for wall mounting, with a transparent (ELTC/05 = grey) cover. The controller should be protected from direct sunlight when used outdoors.
Function:
If the sensed temperature is lower than the adjusted set point, the relay contact closes and the heating switches on. The yellow LED glows while the contact is closed. During sensor discontinuity or sensor short circuit, the heating is switched off!

Applications:

• Industrial heating systems
• Building heating systems
• Warehouse heating systems
• Greenhouse heating systems
• Pipeline heating systems
• Tank heating systems
• Cold room heating systems
• Food processing equipment
• Laboratory equipment
• All industrial and commercial applications requiring temperature control

ELTC/ Type Electronic Temperature Controller

The electronic temperature controller type ELTC/ is designed for use as an ambient thermostat or surface thermostat with remote sensor. Cable glands and terminations are provided for the power connection. The unit is supplied in a weather proof polycarbonate casing for wall mounting, with a transparent (ELTC/05 = grey) cover. The controller should be protected from direct sunlight when used outdoors.
Function:
If the sensed temperature is lower than the adjusted set point, the relay contact closes and the heating switches on. The yellow LED glows while the contact is closed. During sensor discontinuity or sensor short circuit, the heating is switched off!

Applications:

• Industrial heating systems (applications requiring more precise control due to SSR output)
• Plastic injection molding machines
• Ovens and furnaces
• Heat treatment equipment
• Packaging machines
• Laboratory equipment
• Food processing equipment
• Chemical process control
• All industrial and commercial applications requiring precise temperature control

The controller can be configured for various functions in the factory.
The following types of controller are available from the factory:

• 2-position controller (conventional or PID) with hysteresis (normal case)
• PID-controller with PWM (= Pulse-Width-Modulation) output (quasi-continuous)
• PID-continuous controller
• Limiter

Function:
The temperature controller switches the connected heating based on a given set-point. The limiter ensures that the heating is switched off when reaching the over temperature. Further temperature limits can be monitored. If a limit is exceeded or not reached, potential free contacts are switched (K3/K4)

Applications:

• Industrial furnaces and ovens
• Plastic injection molding machines
• Heat treatment equipment
• Food processing equipment
• Chemical process control
• Laboratory equipment
• All industrial applications requiring precise temperature control
• Systems requiring over-temperature protection

Eltherm Ex-box Hazardous Location Temperature Controller

The new eltherm ex-box is a hazardous location temperature controller developed from and by eltherm for customer needs. This product may either be used separately as a controller or limiter or as a controller limiter combination.

Attributes:

• Rugged housing IP 65
• Operation and programming in hazardous area
• Optional hand held controller (ex-control)
• Optional as controller or limiter
• Information transfer with a personal computer
• Fail alarm, high safety
• Switch rating 16A
• Integrated heating circuit monitoring

Applications:

• Petrochemical plants
• Chemical industry
• Pharmaceutical industry
• Food processing plants
• All industrial heating applications located in hazardous areas.

Ex-Box LED

The Ex-Box LED is a temperature controller developed by eltherm for use in hazardous areas, with similar features to the Ex-Box DIS, but with a simpler interface. Essentially, it is a version of the Ex-Box DIS without a personal computer bus card and providing status information via LED indicators.

Applications:

• Petrochemical plants
• Chemical industry
• Pharmaceutical industry
• Food processing plants
• All industrial heating applications located in hazardous areas.

STW II Capillary Tube Thermostat 16 A Fail-Safe

The STW II is a compact ON/OFF type capillary tube thermostat, housed in an Ex e certified polyester enclosure. Heaters, fans, motors and other equipment are energised and de-energised by means of this thermostat when specific temperature ranges are exceeded. This device can also be used to control the temperature in air or on various surfaces.

FUNCTION

Any change in temperature at the sensor bulb causes a change in the volume of fluid in the measuring system, which in turn results in a movement of the diaphragm membrane. This membrane is connected to a mechanical device that activates a microswitch. If the temperature at the sensor bulb exceeds the pre-set value, terminals 1 and 4 are opened. If there is a rupture or break in the sensor tube (leakage), then the switch remains permanently open (fail-safe). If the temperature falls below the minimum setting, the autocontrol opens the circuit but closes again on temperature rise.

APPLICATION EXAMPLE

The STW II thermostat can directly switch temperature-dependent equipment loads (heaters etc.) of up to 16 A. Higher rated currents can be switched by means of a contactor; the STW II switches the contactor coil. If an interlock is installed by means of an additional relay (according to DIN VDE 0116), the STW II can also be used as a limiter.

FEATURES

• Small construction
• Varying temperature ranges can be combined in one enclosure
• Can be mounted directly in Zone 1
• Temperature can be set in Zone 1
• Many variants available

DTW DTB Flame Proof Temperature Monitor Limiter

The flame-proof encapsulated temperature controllers/limiters (DTW/DTB) are designed for (trace)-heating applications in the Ex area. They can be used both for protection against frost and for maintenance temperature applications. Heating units and other operating equipment are switched on and off by means of the temperature controller when the temperature is too high or too low. The DTB temperature limiter is designed with resetting lockout; resetting (restarting) is only possible on the device. Can be used for monitoring temperature in the air or on surfaces.

FUNCTIONS

A change in temperature in the sensor causes a change in volume in the fluid filled in the measuring system, which in turn results in a movement of a membrane, which is connected to transmission mechanics and activates a microswitch. If the sensor temperature exceeds the pre-set level, the contact is actuated. The temperature limiter switches off permanently if the temperature is exceeded. Once the temperature drops, the temperature limiter can be unlocked manually. If there is a break in the measuring system (leakage), the circuit remains open permanently.

APPLICATİON EXAMPLE

DTW and DTB switch temperature-dependent equipment (heating units) of up to 22/16 A directly. Higher switching currents or 3-phase applications are switched by means of a contactor.

• 22 A switching capacity
• Flame-proof enclosure
• ATEX, UL, CSA, FM Approval

Application Areas:

• Oil and Gas Refineries: Temperature monitoring of pipelines and equipment in environments with high temperatures and explosive gases.
• Chemical Industry: Temperature monitoring of reactors and storage tanks for controlling hazardous chemical reactions and preventing overheating.
• Paint and Varnish Production Facilities: Temperature control of ovens and drying chambers in production processes using flammable solvents.
• Flour and Grain Silos: Early detection of temperature increases in storage silos to prevent dust explosion risks.
• Mining: Monitoring the overheating of electrical equipment and conveyor belts in underground mines.
• Power Plants: Continuous temperature monitoring of high-temperature operating equipment such as turbines and boilers.

MTE Mini Termostat

• Compact design
• High switching capacity
• Extremely adaptable to the surrounding conditions
• Protection class IP 65/66

This Mini-thermostat is used to monitor the ambient temperature of heating systems as well as for the control of internal temperatures inside protective transmitter boxes or control and switchgear cabinets. In addition, it can be used for the control (signalling) of too low or too high a temperature or as an alarm contact.

STRUCTURE

A temperature sensor is encapsulated in an explosion-proof metal tube. The standard version features an external M20 thread. You can choose either a version with a cast rubber cord or one that is directly mounted to an Ex terminal box. A special version is also available with a flange fixing.

Application Areas:

• Small ovens
• Laboratory equipment
• Heating and cooling systems
• Food processing equipment
• Plastic processing machines
• 3D printers
• Incubators
• Extruder Heating
• Hot press applications.

KTE-m Cable Thermostat

• Very small construction
• ATEX gas and dust approval
• High switching current
• Wide operating temperature range
• Ready for connection, maintenance-free

The extremely compact BARTEC bimetallic thermostat integrated in a cable is mostly used in hazardous (potentially explosive) areas for applications in which devices are to be protected against frost. This thermostat can be used to regulate internal temperatures of switch and control cabinets, transmitter protection boxes, measuring equipment etc.. It can also be used to monitor (indicate) excessively high or low temperatures or also as an alarm contact. The application assures the greatest possible reliability because of the conformance to the required minimum temperatures

Application Areas:

• Freeze protection of pipelines and tanks
• Control of heating cables
• Cold room heating
• Floor heating
• Industrial process heating
• HVAC systems
• Extruder Heating
• Hot press applications.

STRUCTURE

The thermostat is built into a casting element and can be mounted either over the borehole in the mounting sheet or suspended freely in the air.

FUNCTION

The ambient temperature is measured through the surface of the thermostat. The integrated, explosion-proof bimetallic thermostat switches the connected heating in accordance with this ambient temperature.

KTE-d Cable Thermostat

• Very small construction
• ATEX gas and dust approval
• High switching current
• Wide operating temperature range
• Ready for connection, maintenance-free

The compact BARTEC bimetallic thermostat integrated in a cable is mostly used in hazardous (potentially explosive) areas for applications in which devices are to be protected against frost. This thermostat can be inserted both for the outside temperature monitoring and for the regulation of interior temperatures of switch and control cabinets, transmitter protection boxes, measuring equipment etc. It can also be used to monitor (indicate) excessively high or low temperatures or also as an alarm contact. The application assures the greatest possible reliability because of the conformance to the required minimum temperatures

Application Areas:

• Freeze protection of pipelines and tanks (dual circuit control)
• Control of heating cables (dual circuit control)
• Cold room heating (dual circuit control)
• Floor heating (dual circuit control)
• Industrial process heating (dual circuit control)
• HVAC systems (dual circuit control)
• Extruder Heating (dual circuit control)
• Hot press applications (dual circuit control)
• Redundant heating systems (dual circuit control)

STRUCTURE

The thermostat is built into an aluminum body. The thermostat can be installed either over the mounting hole with M6 thread or with the M20 connecting thread.

FUNCTION

The ambient temperature is measured through the surface of the thermostat. The integrated, explosion-proof bimetallic thermostat switches the connected heating in accordance with this ambient temperature