Endress+Hauser iTHERM TM411 - Design and Dimensions

iTHERM TM412
20 Endress+Hauser
Mechanical construction
Design, dimensions
All dimensions in mm (in). The design of the thermometer depends on the protection tube version
used:
• Thermometer without protection tube - for installation in an existing protection tube
• Diameter 6.35 mm (¹⁄₄ in)
• Diameter 9.53 mm (³⁄₈ in)
• Diameter 12.7 mm (¹⁄₂ in)
Various dimensions, such as the immersion length U for example, are variable values and are
therefore indicated as items in the following dimensional drawings.
Variable dimensions:
Item Description
E Extension neck length, variable depending on the configuration or predefined for the version with
iTHERM QuickNeck
IL Insert length
L Protection tube length (U+T)
B Protection tube base thickness: predefined, depends on protection tube version (see also the
individual table data)
T Length of protection tube shaft: variable or predefined, depends on protection tube version (see
also the individual table data)
U Immersion length: variable, depending on the configuration
ØID Insert diameter 6 mm (0.24 in), 3 mm (0.12 in) or 6.35 mm (¹⁄₄ in)
Without protection tube
For installation in an existing protection tube (all dimensions in inch)
1
3
4 5
2
IL
ILa
IL
IL
ILa
ILa
ILa
ILa
IL
IL
E=1
E=2.5
E=1.5
E=3.5
E=
0.75
0.32
0.32
0.32
A0034489
1 Thermometer with extension hex nipple, for connection thread ½" NPT
2 Thermometer with extension nipple union nipple (NUN), for connection thread ½" NPT
3 Thermometer with quick-fastening iTHERM QuickNeck, upper part
4 Thermometer with quick-fastening iTHERM QuickNeck complete, for connection thread ½" NPT
5 Thermometer with 1¼" x 18 UNEF thread
IL Insert length
ILa Insert length (without nipple)
E Length of the extension neck available at point of installation (provided one is available)