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TONiC T4xx1 readhead installation drawing
Dimensions and tolerances in mm
R > 20 dynamic bend radius
3
R > 10 static bend radius
Ø4.25 ±0.25
4
4.6
1
Extent of mounting faces.
2
The recommended thread engagement is 5 mm minimum (7.5 mm including counterbore) and the recommended tightening torque is 0.25 Nm to 0.4 Nm.
3
The dynamic bend radius is not applicable for UHV cables. UHV cables are for static use only.
4
The UHV cable diameter is approximately 3 mm.
Original instructions
Optical centreline (incremental and reference mark)
18
31
16
3
22
29
2 mounting holes M2.5 through, counterbored Ø3 × 2.75
deep from alternative mounting face
6 minimum
Set-up LED
35
CAL/AGC LED
23
2 mounting holes M2.5 through, counterbored Ø3 × 2.3 deep both sides
11.5
Rideheight 2.1 ±0.15
(Yaw tolerance ±0.4°)
7.5
0.25
'A' section - offset 1.75 ±0.5
'B' section - offset 3.25 ±0.5
3
Recommended mounting faces
(Pitch tolerance ±0.5°)
0.6
'Forward' direction of ring
(Roll tolerance ±0.5°)
0.08
1
8.75
13.5
11
1
4.25
Alternative mounting face
4.15
10
2
(increasing count)
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23
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