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TWL-Exd Resistance Thermometer
Brand: KOBOLD Instruments, Inc
The KOBOLD resistance thermometers comprise a rugged installation fitting made of stainless steel with thread, flange or weld-on connection, a connection head out of aluminium casting and a removable measuring element.
The measuring insert can be replaced without emptying the installation, since the customized thermowell remains in the installation and seals the process.
The instruments are supplied with the ignition protection Exd as a standard and therefore can be installed in relevant hazardous areas. A Pt100 temperature sensor according to IEC 751, category A or B is fitted in the measuring insert as standard.
Depending on customer request the temperature sensor can be carried out as 2-, 3- or 4-wire circuit.
Alternatively these sensors can be designed as single or double resistance thermometers.
Exceptional the 4-wire version, which can only be build with one Pt100 due to lack of space. As an option the resistance thermometers can be supplied with a head transmitter.
Transmitter with a standard 4-20 mA signal, with HART ® protocol or with PROFIBUS ® /Fieldbus ® are there to choose from.
Beside the available resistance thermometers according to DIN-standard, there are customized versions relating to the immersion length, the connection head, the materials, the process connection or the tolerance classes deliverable on request.
Specifications
Brand
Accuracy
- Class A
- Class B
Ambient Temperature Range
- -20° to 70° C (-4° to 158° F) - with LCD Display
- -20° to 80° C (-4° to 176° F) - with LED Display
- -40° to 150° C (-40° to 302° F) - with Ceramic Terminal Base & without Transmitter
- -40° to 85° C (-40° to 185° F) - with Transmitter
Applications
- Air Conditioning Systems
- Apparatus Construction
- Cooling Circuits
- Furnace Draft
- Heating Equipment
- Industrial Service
- Mechanical Engineering
Approvals & Certifications
- ATEX Ex II 2 GD Ex d IIC T6
- ATEX-II 2 GD Ex d IIC T6
BSP Connection
- G 1" Male
- G 1/2" Male
- G 3/4" Male
Cable Entry
- M20 x 1.5
Communication
- HART
- PROFIBUS
Connection Material
- Aluminum
Display
- 4-Digit LCD
- 4-Digit LED
Environmental Protection
- IP54
- IP68
Flange Size - 1-1/2” (DN 40)
- 1-1/2" (DN 40) - PN 100
- 1-1/2" (DN 40) - PN 16
- 1-1/2" (DN 40) - PN 40
- 1-1/2" (DN 40) - PN 6
Flange Size - 1-1/4” (DN 32)
- 1-1/4" (DN 32) - PN 100
- 1-1/4" (DN 32) - PN 16
- 1-1/4" (DN 32) - PN 40
- 1-1/4" (DN 32) - PN 6
Flange Size - 1” (DN 25)
- 1" (DN 25) - PN 100
- 1" (DN 25) - PN 16
- 1" (DN 25) - PN 40
- 1" (DN 25) - PN 6
Flange Size - 1/2” (DN 15)
- 1/2" (DN 15) - PN 16
- 1/2" (DN 15) - PN 40
- 1/2" (DN 15) - PN 6
Flange Size - 2” (DN 50)
- 2" (DN 50) - PN 100
- 2" (DN 50) - PN 16
- 2" (DN 50) - PN 40
- 2" (DN 50) - PN 6
Flange Size - 3/4” (DN 20)
- 3/4" (DN 20) - PN 100
- 3/4" (DN 20) - PN 16
- 3/4" (DN 20) - PN 40
- 3/4" (DN 20) - PN 6
Length
- 16.4 feet (5,000 mm) - Thermowell Length
- 3.28 feet (1,000 mm) - Thermowell Length
- 9.84 feet (3,000 mm) - Thermowell Length
Materials of Construction
- 316L Stainless Steel, 1.4401 - Neckpipe, Thermowell
- Ceramic - Terminal Base
NPT Connection
- 1" NPT Male
- 1/2" NPT Male
- 3/4" NPT Male
Operating Pressure
- psi: 3,626 (kPa: 25,000, bar: 250)
Output
- 4-20 mA
Power Options
- Loop-Powered
Sensor / Probe Connection
- 2-Wire
- 3-Wire
- 4-Wire
Sensor / Probe Material
- 316L Stainless Steel, 1.4401
Sensor / Probe Type
- Pt100
Supply Voltage
- 8-35 Vdc
- 9-32 Vdc
Temperature Range
- -80° to 600° C (-112° to 1,112° F)
Voltage Drop
- LCD: 2.5 V, Max.
- LED: 3.3 V at 4 mA
- LED: 3.7 V at 20 mA