System description
There are three types in the range:
• AutojointtoM8bush(PAAseries)
• Autojointtoautojoint(PEMseries)
• M8threadtoM8bush(PELseries)
2.13.1 Autojoint to M8 bush
These extension bars connect directly to the autojoint of the PH10M or PH10MQ head
and terminate in an M8 bush (see table 6). This permits the use of two-wire touch-
trigger probes.
Table 6 - Autojoint to M8 bush extensions
Extensions Length Material Weight
PAA1 32 mm (1.26 in) Steel 57 g
PAA2 144 mm (5.67 in) Aluminium 85 g
PAA3 300 mm (11.81 in) Aluminium 144 g
The probe is fitted to the extension by hand and tightened by use of the S1 ‘C’ spanner
as shown in figure 12.
Figure 12 - Fitting a TP20 to a PAA1 adaptor
S1 ‘C’ spanner