WIKA TW61 - Manual (Page 10)

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