
BSTW II Safety temperature monitor and BTB II limiter
25 A, fail-safe


27-6D.2-52../...0
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
Marking
II 2 G Ex de IIC T6, T5, T4, T3
Ambient temperature
Min.: -55 °C (Standard)
Max.: see data sheet
Description
BSTW II 25-A Ex temperature monitors and BTB II/BSTB II temperature limiters are two-state controllers in Ex e-certified polyester enclosures. In addition to the use of conventional wiring by means of a sheathed cable, the BSTW II and BTB II/BSTW II are suitable and approved for the direct connection of self-limiting BARTEC heating systems in the enclosure. As a result, a verification of thermal safety and a further acceptance test by a capable person is no longer necessary. The benefit for the customer is obvious. The direct connection of self-limiting heating tapes does away with the need for junction boxes and considerably reduces the extent of wiring required. BSTW II and BTB II/BSTB II can monitor the ambient temperature but also the different surface temperatures. In conformance to EN 60079-30-1, the 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 in the device.
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.
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
Technical data *
Protection class | IP 65/EN 60529 |
Structure | Contacts: 1 change-over contact Contact decks 1 – 2: AC 400 V/16 A, AC 230 V/25 A Contact decks 1 – 4: AC 400 V/6.3 A, AC 230 V/6.3 A |
Dimensions | Device for 1 heating circuit: 160 mm x 160 mm x 90 mm Device for 1 to 3 heating circuits: 260 mm x 160 mm x 90 mm Combination unit: 260 mm x 160 mm x 90 mm Double unit: 260 mm x 160 mm x 90 mm Capillary tube Length: 1000 mm; OD sensor line: 1,5 mm; Min. bend radius 5 mm; Sensor bulb diameter: 6 mm |
Material | Sensor material: SS 1.4571 |
Storage temperature | -55 °C to +65 °C |
Connection | Device for 1 heating circuit Terminals: 4 x 6 mm² + 2 PE Heating cable connections: 2 x M20, closed with blind plug Device for 1 to 3 heating circuits Terminals: 8 x 6 mm² + 3 PE Heating cable connections: 3 x M20, closed with blind plug Combination unit Terminals: 6 x 6 mm² + 3 PE Heating cable connections: 2 x M20, closed with blind plug Double unit Terminals: 8 x 6 mm² +3 PE Heating cable connections: 2 x M20, closed with blind plug |
*Refer to the documentation for more detailed information
Products
- Обзор
- Анализаторы и измерительное оборудование
-
- Анализаторы и комплексные решения
-
- Анализаторы BARTEC BENKE
-
- Поточный анализатор фракционного состава (ускоренная дистилляция) rapiDist-4
- Поточный анализатор фракционного состава DPA-4
- Поточный анализатор температуры предельной фильтруемости CFPP-4
- Поточный анализатор температуры вспышки FPA-4
- Поточный анализатор температуры кристаллизации и помутнения FRP-4/CPA-4
- Поточный анализатор температуры застывания PPA-4
- Поточный анализатор давления насыщенных паров RVP-4
- Поточный анализатор вязкости VISC-4
- Поточный анализатор индекса вязкости VI-4
- Поточные анализаторы BARTEC ORB
-
- Поточный анализатор температуры вспышки P-500
- Поточный анализатор содержания солей в сырой нефти модель P-600
- Поточный анализатор давления насыщенных паров по Рейду P-700
- Поточный анализатор температуры кристаллизации P-800LT, низкотемпературный
- Поточный анализатор температуры помутнения P-820LT, низкотемпературный
- Поточный анализатор температуры потери текучести (температуры застывания) P-840/P-840LT
- Комплексные решения
- Системы кондиционирования/HVAC
- Trace Moisture Measurement
- Измерение влажности газа
- Seismic Instrumentation
- Бесконтактное измерение температуры
- Системы измерения и сбора данных для опасных жидкостей
- Measurement and Data Acquisition Systems for Milk
- Автоматизация и мобильные решения
-
- Компьютерные устройства
- Bus Technology
-
- Remote I/O System ANTARES
- MODEX Bus Systems
-
- PROFIBUS Interface 16 x Ex e digital out
- PROFIBUS-Interface 16 x digital out Ex i
- PROFIBUS Interface 16 x digital in Ex e
- PROFIBUS-Interface 16 NAMUR in (16 x digital in Ex i)
- PROFIBUS-Interface 8 x 4 to 20 mA in
- PROFIBUS-Interface 8 x 4 to 20 mA in passive
- PROFIBUS-Interface 8 Transmitter in (8 x 4 to 20 mA, Transmitter in)
- PROFIBUS-Interface 4 x digital out Ex e/8 x digital in Ex i
- PROFIBUS-Interface 4 x digital out Ex i/8 x digital in Ex i
- PROFIBUS Interface 8 x 4 to 20 mA out Ex i/Ex e
- PROFIBUS-Interface 4 x RTD in Ex i
- PROFIBUS-Interface 8 x Relay out Ex e
- PROFIBUS-Interface 8 x Relay out Ex i
- PROFIBUS-Interface 8 x 4 to 20 mA in/4 x 4 to 20 mA in/out
- PROFIBUS-Interface 8 x 4 to 20 mA in/4 x 4 to 20 mA in/out
- PROFIBUS-DP Coupler/PROFIBUS-DP Repeater
- RS485/PROFIBUS LWL T-coupler
- RS485/PROFIBUS LWL Ring-coupler
- RS485/PROFIBUS Optical fibre branch coupler
- PROFIBUS-Interface Terminator
- Control Units MODEX
- Resistive Coupling Element
- Industry Tablets/Tablet PCs
- Touch & Mobile Computers
- Сбор данных
- Смартфоны
- Камеры
- Network Technology
- Electrical Engineering for Mining
- Электродвигатели
- Техника управления и связи
-
- Командные и индикационные приборы ComEx
-
- Actuating Elements
- Модули переключения ComEx с клеммами для крепления на DIN-рейку
-
- Модуль переключения ComEx с клеммами для крепления на DIN-рейку
- Световой модуль ComEx с клеммами для крепления на DIN-рейку
- Световой модуль ComEx Ex i с клеммами для крепления на DIN-рейку
- Кнопка с подсветкой ComEx с клеммами для крепления на DIN-рейку
- Кнопка с подсветкой ComEx Ex i с клеммами для крепления на DIN-рейку
- Потенциометр ComEx с клеммами для крепления на DIN-рейку
- Управляющий выключатель ComEx, встраиваемый модуль, 4-полюсный
- Модуль переключения ComEx, 4-полюсный
- Модули переключения ComEx для локальных станций управления и панелей управления
- ComEx – Принадлежности
- Комплектные приборы ComEx
- Панели управления
- Pressurized Control Panels
- Installation Systems
- Switches
- Cable Entries, Line Bushings
-
- Line bushings
- Line bushings with terminals
- Bushing conductor studs 690, 1000 and 1600 Volt
- Optical fibre bushings
- Electrode line bushing explosion-proof and pressure-sealed
- Bushing explosion-proof and pressure-sealed
- Cable entries
- Flameproof Enclosures
- Flameproof Enclosures
- Flameproof Enclosures
- Bushings and cable entries pressure and vacuum sealed
- Nonthreaded line bushings, pressure and vacuum sealed
- Cable entries, pressure and vacuum sealed
- Cable entries, submersible
- Bushing conductor studs, pressure and vacuum tight
- Electrode line bushings
- Special versions – Stud plate, Line bushings, Prestressed-glass line bushings
- Tab washer
- Lock nut
- Circlip
- Cable Glands
- Signalling Devices
- Lighting Technology
- Электрообогрев