Expansion Thermometer - 70

Brand: WIKA Alexander Wiegand SE & Co. KG

This series of thermometers is universally suitable for machine building, refrigeration and air-conditioning industry. Expansion thermometers can be installed in or mounted at nearly all locations.

Versions with capillaries are used in locations which are not easily accessible and where long distances have to be bridged.
Features
  • Case and stem made of stainless steel. 
  • Design per DIN EN 13190. 
  • Different designs of connection and mounting. 
  • With capillary. 
  • With various fixed connections. 

Specifications

Measuring Principle

  • Bourdon Tube system

Nominal Size in mm

  • 63
  • 100
  • 160

Design of Connection

  • 1: Plain Stem (without thread)
  • 2: Male Nut
  • 3: Union Nut
  • 4: Compression Fitting (Sliding on Stem)
  • 5: Union Nut with Fitting
  • 6: Compression Fitting (Sliding on Capillary)

Instrument Version & Type of Mounting

  • B: Instruments with Capillary, centre Back Mount triangular bezel with bracket
  • H: Instruments with Capillary, Lower Mount (Radial) surface Mounting flange
  • M: Instruments with Capillary, Lower Mount (Radial) surface Mounting bracket, Aluminium die Cast
  • V: Instruments with Capillary, Back Mount 1) Panel Mounting flange
  • A: Back Mount 1), fix plain Stem, threaded Connection or thermowell
  • R: Lower Mount (Radial), fix plain Stem, threaded Connection or thermowell
  • S: Back Mount 1), fix plain Stem, threaded Connection or thermowell, swivelling approximately 90 ∢°

Fill Medium Measuring System

  • Xylol or Silicon oil

Accuracy Class

  • Class 2

Rated Operating Ranges & Conditions

  • EN 13190

Capillary Entry

  • Lower or Back

Case

  • Stainless Steel

Bezel Ring

  • Stainless Steel

Connection

  • Stainless Steel 1.4571

Capillary

  • Length to customer Specifications (Max. 10 m), Ø 2 mm
  • Stainless Steel 1.4571, bending radius not less than 6 mm

Stem

  • Ø 8 mm, Stainless Steel 1.4571

Active Length of Sensor

  • Depending on Ø d and scale Range

Dial

  • Aluminium, White, Black Lettering

Pointer

  • Aluminium, Black

Window

  • NS 100, 160: Instrument Glass
  • NS 63: Transparent Plastic

Temperature Limits for Storage & Transport

  • -50° to +70° C (EN 13190) without Liquid damping
  • -20° to +60° C (EN 13190) with food-Compatible Liquid damping
  • 50° to +60° C (EN 13190) with Liquid damping

Ambient Temperature Limit at the Case

  • 0° to 40° C Max. (Others on Request)

Pressure Rating of Stem

  • 25 bar Max., Static

Ingress Protection

  • IP65 per EN 60529 / IEC 529

  • General-purpose temperature measuring instruments for gaseous, liquid and highly-viscous process media in harsh working environments
  • Refrigeration industry
  • Machine building

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