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

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

  • M20×1.5

Communication

  • HART
  • PROFIBUS

Connection Material

  • Aluminum

Display

  • 4-Digit LCD
  • 4-Digit LED

Environmental Protection

  • IP54
  • IP68

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 - 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 - 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, Maximum
  • LED: 3.3 V at 4 mA
  • LED: 3.7 V at 20 mA

Show More