EX PROOF HEAT TRACING EQUIPMENT

BSTW II Safety Temperature Monitor And BTB II BSTB II Limiter 25 A Fail-Safe

BSTW II temperature monitors and BTB II/BSTB II temperature limiters are ON/OFF thermostats in Ex e certified polyester enclosures. In addition to the use of conventional power cables, BSTW II and BTB II/BSTW II are approved for the direct connection of self-limiting BARTEC heating circuits in the enclosure terminals. A verification of thermal safety and a further approval by any third party authority is not necessary. The benefit to the customer is obvious. Any directly connected self-limiting heating circuit considerably reduces the number of junction boxes and installation cost. BSTW II and BTB II/BSTB II monitor ambient temperatures as well as different surface temperatures. In accordance with EN 60079-30-1, BTB II and BSTB II fail-safe temperature limiters are designed to switch off and remain switched off when the preset limit temperature is reached. The restart lockout requires manual resetting directly at the device.

Application Areas:

• Industrial furnaces
• Heating systems
• Plastic processing machines
• Food processing equipment
• Chemical processes
• Laboratory equipment
• Power plants
• HVAC systems
• Extruder Heating
• Hot press applications.

FUNCTION

Any change in temperature in the sensor causes a change in the volume in the liquid-filled measuring system, which in turn results in a movement of the diaphragm membrane, which is connected to a transmission mechanism, and this opens a microswitch. If the sensor temperature exceeds the set value, the contacts 1 and 2 remain continuously open. The contacts in the BTB II/BSTB II remain continuously open until there is a manual intervention.

FEATURES

• Direct connection of self-limiting heating tapes by means of BARTEC’s cold-applied technology reduces wiring and materials
• Switching voltage up to 400 V and 2 M20 x 1.5 boreholes as standard for an enhanced operation of EKL heating circuits
• Safety cut-out temperature -45 °C or -55 °C for reliable operation, even in very cold conditions
• Minimum operating temperature -55 °C for all standard variants for use all over the world without restrictions
• Wide regulating range from -20 °C to +500 °C, depending on the switch insert

BSTW II

Fail-safe safety temperature monitor.

• Falling calibration to maintain the temperature during the process
• Turns on and off automatically whenever the temperature exceeds or drops below the setpoint value

BTB II

Fail-safe temperature limiter.

• Rising calibration to limit temperature during the process
• Switches off and remains switched off once the limit temperatures are reached

BSTB II

Fail-safe safety temperature limiter.

• The BSTB II functions in the same manner as the BTB II temperature limiter, whereby the setting range is limited here to 0 °C to 130 °C or 130 °C to 190 °C based on the temperature classes T3 and T4.

Pt100 M Resistance Thermometer

• Fast response time
• Flexible connection cable for easy installation
• Compact dimensions, compact design

This Pt100 Ex sheathed resistance thermometer has been particularly designed for use in potentially explosive areas. As it meets the requirements of the Ex m type of protection, intrinsically safe circuits can be dispensed with. Thanks to the pliable part of the resistance thermometer, the device is excellently suitable for application areas requiring a high degree of flexibility and replaceability (e.g. chemical and power plants)

Structure The resistance thermometer is made of a 3 mm mineral insulated cable with different lengths. This light mineral insulated cable is filled with magnesium oxide. The pliable part of the resistance thermometer starts after 50 mm. Via a transition gland, the connection to a flexible supply cable is created.

Function Metals increase the electrical resistance with rising temperatures. The platinum element of the resistance thermometer has a resistance of 100 Ω at 0 °C. This characteristic is used for this type of resistance thermometers to get an image of the temperature. The resistance changes of the Pt100 Ex are converted into a temperature value and displayed by a control unit.

Application Areas:

• Industrial furnaces and dryers
• Chemical processes
• Food processing
• Pharmaceutical production
• Power plants
• HVAC systems
• Laboratories
• Plastic processing machines
• Metal processing
• Automotive industry
• Greenhouse and agricultural applications
• Extruder Heating
• Hot press applications.

DTL III Ex Digital Safety Temperature Limiter

• ATEX approved limite
• Optimised for trace heating applications (with service contact
• In conjunction with Pt100 Ex, it can be used for monitoring temperature in explosionprotected heating circuit

The DTL III Ex digital temperature limiter, which is adapted to (trace) heating applications, serves to monitor heating and heating circuits. The device is installed in the non-hazardous area. The heating or heating circuits can be installed both in media-protected and also in hazardous areas. Thanks to their integrated power supply unit with wide-range voltage, the devices can be used almost everywhere in the world

Function If the temperature at the Pt100 exceeds the set limit value, the DTL III Ex permanently interrupts the normally closed 16 A switch contact. This situation is detected by a volt-free alarm contact (change-over contact) and passes on the signal to the control panel. After a temperature drop of 5 K below the limit set point, or after a fault has been remedied, the limiter can be re-activated by means of a re-set button on the device itself or via a remote re-set control. The DTL will also interrupt the switch contact in the event of a sensor open or short circuit. Process reliability is increased by additional monitoring functions such as supply voltage monitoring, pre-alarm, measuring circuit monitoring for sensor break, interruption and short-circuit as well as undershooting/overshooting of the measuring range. A multi-stage password management is available for effective parameter protection. When doing service work on the heating circuit, the load output can be turned off by means of a digital input and the temperature alarms can be disabled. Using the programming interface, the device parameters can be read out with a programming key and transmitted to other devices.

Structure The DTL III Ex is integrated in a latch-on enclosure for TS 35 mounting rails. The alarm relay is produced as a change-over contact and the limit relay as a normally open contact. The voltage is supplied to the control device through an integrated power supply unit with wide-range voltage. The electrical connection is established with terminal screws operating on the screw cage clamp principle, ensuring a safe connection that is gentle on conductors.

Application Areas:

• Oil and gas industry (refineries, platforms)
• Chemical industry (chemical plants)
• Mining
• Paint industry
• Flour and sugar factories
• High temperature furnaces (in hazardous areas)
• Heat treatment plants (in hazardous areas)
• Hazardous material storage
• Extruder Heating (in hazardous areas)
• Hot press applications (in hazardous areas)
• Heating cable applications (in hazardous areas)
• Sensor connections (in hazardous areas)

DPC CodeKey Programming Key For DPC III And DPC

• Easy programming of DPC devices
• Operation independent of voltage supply
• SMART converter function USB/RS485

The DPC CodeKey makes it easier to set parameters for the DPC device family. Once a reference device has been successfully programmed, the operating parameters are available in a device-memory read-out. The parameters filed in the CodeKey can be copied into other devices any number of times. This reduces the programming work to a minimum. In addition, the CodeKey can be used as an interface converter between the USB and RS485.

Mode of Operation A DIP switch can be used to select the device function required. The DPCfront and DPC III have at the side or under the display cover a 5-pin interface into which the CodeKey is inserted. The transmission is started at the press of a button. Once done, a status LED flashes. Voltage is supplied to the CodeKey through the interface.

Application Areas:

• Industrial furnaces and drying systems
• Plastic processing machines
• Food processing equipment
• Chemical processes
• Laboratory equipment
• Heat treatment plants
• Power plants
• HVAC systems
• Extruder Heating
• Hot press applications
• Rapid configuration of multiple DPC control devices
• Mass production and calibration in factory environments
• Maintenance and repair of DPC control devices
• Secure storage of programming parameters.

PLEXO TCS Connection System

The PLEXO TCS connection system can be used for BARTEC self limiting heating tapes. This modular connection technology allows an easy and reliable assembly of supply connections, splicing and remote end terminations. PLEXO TCS is plugged and built up with a patented sealing and clamping technology. Maintenance work and later modifications on the heating circuit can be done quick and flexible. The strands from the heating tape or the supply cable are fixed in place securely by spring-loaded terminals in the internal clamping technology. 

Features:

• Cross-section of connection cable up to 4 mm2
• Operating temperature range from -60 °C to +180 °C
• Integrated strain relief; high electrical and mechanical safety
• Quick and easy installation, with standard tools
• System approval with BARTEC self-limiting heating tapes

Explosion Protection:

Ex Protection Type

• PLEXO TCS with heating tape
• II 2G Ex e IIC T5 Gb
• II 2D Ex tb IIIC T95 °C Db

Certification

• PLEXO TCS with heating tape
• BVS 13 ATEX E 040 X
• IECEx BVS 13.0048X
• TC RU C-DE.ГБ06.B.00230

PSBL-System

• KEMA 08 ATEX 0112 X
• IECEx KEM 09.0085X
• TC RU C-DE.ГБ06.B.00230

Application:

• BARTEC Self-Limiting Heating Tape Connections
• Supply Connections
• Splicing Connections
• Remote-End Terminations
• Industrial Heating Systems
• Process Heating Applications
• Freeze Protection Systems
• Pipeline Heating Systems
• Tank Heating Systems

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.

DPC Front Digital Programmable Temperature Control Device Family

• Universal power supply
• Sensor monitoring
• Can be used in conjunction with Pt100 Ex, for temperature regulation in explosion-protected heating circuits

The DPCfront temperature control device series con-sists of three standardised temperature control de-vices that are adapted to the (trace) heating applications. Having two 7-segment displays, the operator can read both set- and measured temperature at first sight. By pressing a single button, the controllers power output is displayed, allowing an evaluate of the heating circuits quality. The control devices can act as ON/OFF or PID control devices. If desired, the autotuning function will automatically determine the optimum (PID) adjusting parameters for the control path. In all models the regulation can be switched off for maintenance work by pressing a single button. On account of the widerange voltage input the devices can be used almost everywhere in the world.

Application Areas:

• Industrial furnaces and dryers
• Plastic processing machines (extruders, injection machines)
• Food processing equipment
• Chemical processes
• Laboratory equipment
• Power plants
• HVAC systems
• Extruder Heating
• Hot press applications
• Heat treatment plants
• Packaging machines
• Cooling systems
• Ceramic kilns
• Incubators
• Medical equipment

Assembly

The control device is mounted into the front panel. The compact dimensions of the front (48 x 48 mm) allow a space-saving control cabinet design. The electrical connection is set up through terminal screws on the rear

Function

Temperature alterations in the sensor are evaluated in the DPCfront and shown as temperature readings on the top LED display. If the reading falls short of or exceeds the temperature value that can be seen in the bottom LED display, the output being used will automatically switch itself on or off to set the manipulated variable to the required value. To monitor the temperature, a high & low alarm function is pre-programmed. The devices detect malfunctioning at the sensor and in the control circuit and report these as faults. Each type of alarm is signalled as a group alarm via a relay

DPC Front Standard Temperature Control Device

• Pre-defined parameters for two-position control
• Can also be used as PID control devices
• Easy Setup

Basic control device that can be used in the factory setting as ON/OFF control device with two relay outputs for regulation and alarm signalling for normal applications. Due to the factory basic setting only the setpoint and the alarm value(s) need to be set. The Easy Start-up function makes this extremely user-friendly. As an alternative, the same device can also be used as a control device with PID control characteristics and an external semi-conductor relay.

Application Areas:

• Industrial furnaces and dryers
• Plastic processing machines (extruders, injection machines)
• Food processing equipment
• Chemical processes
• Laboratory equipment
• Power plants
• HVAC systems
• Extruder Heating
• Hot press applications
• Heat treatment plants
• Packaging machines
• Cooling systems
• Ceramic kilns
• Incubators
• Medical equipment
• Simple heating and cooling applications

DPC Front Komfort Temperature Control Device

• Process-value feedback by 4 to 20 mA analog output
• Logic output for SSR
• Universal measuring input
• Very good measuring accuracy

The DPC front Komfort temperature control device is designed with extra convenient features. In the factory setting it works as a PID Control device with a logic output and a relay output. As an alternative, the same device can also be used as a ON/OFF controller. For regulation the device uses a logic output for solid state relays. The relay output is used for alarm signalling. The high and low alarm function, sensor monitoring and heating circuit monitoring offer additional safety for the temperature regulation. When using the device with the factory setting, a simple setup with just a few buttons is used to start operation for the first time. It is only necessary to set the setpoint, analog output limits, low alarm, and if required, high alarm.

Application Areas:

• Residential heating systems (underfloor heating, radiators)
• Office heating and cooling systems
• Hotel rooms
• Hospitals and clinics
• Schools and educational institutions
• Greenhouse and garden heating systems
• SPA and wellness centers
• Extruder Heating
• Hot press applications.

DPC Front Monitor Temperature Control Device

•  Process-value feedback by 4 to 20 mA analog output
• Logic output for SSR
• Universal measuring input
• Modbus RTU
• Very good measuring accuracy

The DPCfront Monitor temperature control device is designed as a control device with special functions: heating current monitoring, external setpoint switching and communication through RS 485. It works in the factory setting as a PID control device with a logic output and a relay output. As an alternative, the same device can also be used as a ON/OFF control device. The device is used to regulate a logic output for solid state relays. The relay output is used for alarm signalling. In addition a digital input can be used to choose between different setpoints. The high and low alarm function, sensor monitoring, heating circuit monitoring and heating current monitoring offer additional safety for temperature regulation. When using the device with the factory setting, a simple setup is used for putting into operation for the first time. For example the setpoint, analog output limits, heating currents, low alarm, and if desired, the high alarm must be set.

Application Areas:

• Industrial process monitoring
• Laboratory environments
• Cold storage rooms
• Pharmaceutical and food storage
• Data centers
• Greenhouse and agricultural applications
• HVAC system monitoring
• Furnace and drying system monitoring
• Extruder Heating monitoring
• Hot press applications monitoring.