WIKA TW61 Mode D'emploi page 8

2. Design and function
Angular housings (recommended mounting position, see chapter 5 "Commissioning,
■
operation")
For miniature resistance thermometer model TR21-B
EN
1) In the event of replacement, calculate the
probe insertion length, l
l = U + M + 3 mm
1 (TR21-B) 1
For model TR22-B resistance thermometer
8
, as follows:
1
1)
2) In the event of replacement, select a
resistance thermometer measuring insert
model TR11-A.
The corresponding sensor length, l
calculated as follows:
Insertion length U
M (85 mm) + 5 mm pre-load + 10 mm head
dimension
WIKA operating instructions thermowell, model TW61
, is
5
+ neck tube length
1
2)