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Design and function – WIKA TW61 User Manual

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11593963.03 03/2014 GB/D/F/E

10

WIKA operating instructions thermowell, model TW61

GB

Angular housing (recommended mounting position, see chapter 6 “Commissioning, operation”)

4. Design and function

11528452.01

11575795.02

11610565.01

1) In the event of replacement, calculate

sensor length, A, as follows:

A

TR21-B

= U

1

+ M + 3 mm

For model TR21-B miniature resistance thermometer

For model TR22-B resistance thermometer

Pt100

Output signal

4 ... 20 mA

1)

1) In the event of replacement, select a resistance

thermometer measuring insert model TR22-B.

The corresponding sensor length, A(l

5

), is

calculated as follows:

Insertion length U

1

+ neck tube length M +

5 mm pre-load + 10 mm head dimension

Output signal