Kobold Resistance Thermometer with Transmitter, MWD
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MWD Resistance Thermometer

Brand: KOBOLD Instruments, Inc
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KOBOLD temperature assemblies comprise a rugged installation fitting made of stainless steel with thread, flange or weld-on process connection, a connection head and a measuring element. 

A Pt100 temperature sensor according to IEC 751, class A, B, 1/3 DIN or 1/10 is fitted in the measuring element.

On request, the measuring element can be removable, thus, allowing to remove the measuring element without interrupting the process as the customized thermowell remains in the installation and seals the process. 

Alternatively these sensors can be designed as single or double resistance thermometers, except the 4-wire version, which can only be built 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.

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Specifications

Brand

Accuracy

  • ≤ ± 0.1 % of Input Span within -10° to 70° C (14° to 158° F)
  • ≤ ± 0.2 % of Input Span with -30° to 80° C (-22° to 176° F)
  • 0.02 % of Span - Pt100 Sensor
  • 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 Block (without Transmitter)
  • -40° to 85° C (-40° to 185° F) - with Transmitter

Applications

  • Chemical & Petrochemical
  • Cooling Circuits
  • Heating Equipment
  • HVac Equipment
  • Industrial Service
  • Machinery Industry

Approvals & Certifications

  • NAMUR NE 89

BSP Connection

  • G 1” Male
  • G 1/2” Male
  • G 1/4” Male
  • G 3/4” Male

Cable Entry

  • M20 Internal Thread

Communication

  • HART
  • PROFIBUS/Fieldbus

Connection Material

  • Aluminum
  • Polypropylene
  • Stainless Steel

Connection Style

  • BUZ, Hinged Cover
  • BUZ-H, High Model Hinged Cover
  • Screw Terminal - BR Screwed Cover, with Chain
  • Screw Terminal - DIN B Cover with Two Screws

Current

  • 75 mA - Load Current

Damping Adjustment

  • 0 to 30 seconds

Delay Time

  • ≤ 5 seconds - Switch

Display

  • 5-Digit, 7-Segment, Digit Height 8 mm
  • LCD Display with Backlight
  • Range: -19,999 to 99,999

Electrical Connectors

  • M20 x 1.5

Electrical Contacts

  • 2 Solid State Relays

Enclosure, Body Material

  • 304L Stainless Steel
  • 316L Stainless Steel
  • AISI 304 Stainless Steel
  • Aluminum
  • Polycarbonate Plastic
  • Polypropylene

Environmental Protection

  • IP10
  • IP54
  • IP65
  • IP67
  • IP68

Filter

  • 0 to 160 μA

Flange Size - 1-1/2” (DN 40)

  • 1-1/2” (DN 40) - PN 10
  • 1-1/2” (DN 40) - PN 16
  • 1-1/2” (DN 40) - PN 40
  • 150# - 1-1/2” (DN 40)
  • 300# - 1-1/2” (DN 40)

Flange Size - 1-1/4” (DN 32)

  • 1-1/4” (DN 32) - PN 16
  • 1-1/4” (DN 32) - PN 10
  • 1-1/4” (DN 32) - PN 40

Flange Size - 1” (DN 25)

  • 1” (DN 25) - PN 10
  • 1” (DN 25) - PN 16
  • 1” (DN 25) - PN 40
  • 150# - 1” (DN 25)
  • 300# - 1” (DN 25)

Flange Size - 1/2” (DN 15)

  • 1/2” (DN 15) - PN 10
  • 1/2” (DN 15) - PN 16
  • 1/2” (DN 15) - PN 40
  • 150# - 1/2” (DN 15)
  • 300# - 1/2 (DN 15)

Flange Size - 2” (DN 50)

  • 150# - 2” (DN 50)
  • 2” (DN 50) - PN 10
  • 2” (DN 50) - PN 16
  • 2” (DN 50) - PN 40
  • 300# - 2” (DN 50)

Flange Size - 3/4” (DN 20)

  • 150# - 3/4” (DN 20)
  • 3/4” (DN 20) - PN 10
  • 3/4” (DN 20) - PN 16
  • 3/4” (DN 20) - PN 40
  • 300# - 3/4” (DN 20)

Input

  • 3.5-23 mA

Input Signal

  • 20.5 mA - Overranging Linear Rise
  • 3.8 mA - Underranging Linear Drop

Isolation

  • 2,000 Vac - Galvanic Isolation

Load

  • Maximum

Materials of Construction

  • 316 Stainless Steel - Protection Tube, Measuring Insert Material
  • Ceramic - Terminal Block

Maximum System Pressure

  • psi: 435 (kPa: 3,000, bar: 30)

Measuring Range

  • -198° to 100° C (-324° to 212° F)
  • -70° to 600° C (-94° to 1,112° F)

NPT Connection

  • 1” NPT Male
  • 1/2” NPT Male
  • 1/4” NPT Male
  • 3/4” NPT Male

Output

  • 4-20 mA

Relay Output

  • 2 Relays

Resolution

  • 0.3 µA

Response Time

  • 1 second

Sensor, Probe Connection

  • 2-Wire
  • 3-Wire
  • 4-Wire

Sensor, Probe Material

  • 316 Stainless Steel

Sensor, Probe Type

  • Pt100 Single or Double (1 x Pt100 or 2 x Pt100) IEC 751

Shock

  • 4 G / 2 to 150 Hz as Per IEC 60068-26

Stability

  • ± 0.1 % of Reading or 0.1° C (0.18° F)

Supply Voltage

  • 60 Vp
  • 7.5-45 Vdc

Temperature Range

  • -198° to 600° C (-324.4° to 1,112° F)

Voltage Drop

  • 20 mA High Bright Backlight (> 40 %): Max.
  • 20 mA Low Bright Backlight (< 40 %): Max.

Documentation

Data Sheets

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