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TONiC T3x1x readhead installation drawing
Dimensions and tolerances in mm
Reference mark
selector magnet
(dimensions as P limit)
3.7
14.9 ±0.2
P limit magnet
Nominal P limit trigger point
Selected IN-TRAC
Reference mark selector sensor position
R > 20 dynamic bend radius
R > 10 static bend radius
4
Ø 4.25 ±0.25
1.5
4.6
1
Only required for T3010 readheads.
2
Extent of mounting faces.
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.
5
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.
Original instructions
18
31
15 ±1
1
16
3
7.8
10
22
15
29
reference mark
™
6 minimum
3
35
23
11.5
Optical centreline marker
Optical centreline (incremental and reference mark)
Offset 0.7 ±0.5
(Yaw tolerance ±0.4°)
0.25
7.8
Q limit magnet
3
(dimensions as P limit)
Nominal Q lmit tigger point
2 holes M2.5 through, counterbored Ø3 x 2.75
deep from alternative mounting face
P and Q limit switch sensor position
Set-up LED
CAL/AGC LED
2 mounting holes M2.5 through,
counterbored Ø3 x 2.3 deep both sides
(Pitch tolerance ±1°)
0.6
Rideheight 2.1 ±0.15
(Roll tolerance ±0.5°)
0.08
13.5
Recommended mounting faces
Alternative mounting face
5
Forward direction of the readhead
relative to the scale
1.8 ±0.1 RELM20
1.7 ±0.1 RSLM20
2
8.75
2
11
4.25
4.15
10
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23
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