Figure 10: Aluminium Direct Head Mount Housing Dimensions; Figure 11: Plastic Direct Head Mount Housing Dimensions; Figure 12: Cast Iron Direct Head Mount Housing Dimensions - Honeywell STT25D Operator's Manual

BB section
AA section
(33) (40)
2 x M3
2 x M4
1/2" NPT
(Dimensions in millimeters)
46188452-0XX

Figure 10: Aluminium Direct Head Mount Housing Dimensions

BB section CC section
(85) A
AA section
A
(33)
2 x M4
2 x M4
1/2"
A
NPT
A
46188455-0XX

Figure 11: Plastic Direct Head Mount Housing Dimensions

BB section AA section
( 104)
2 x M4
33 mm
2 x M4
1/2" NPT
46188453 -0XX

Figure 12: Cast Iron Direct Head Mount Housing Dimensions

Smart Temperature Transmitter STT250 – Operator Manual 17