Fitting The Datum Clamp - Renishaw QUANTiC RTLC40 Installation Manual

Fitting the datum clamp

The datum clamp fixes the RTLC40 scale rigidly to the substrate at the location chosen.
CAUTION: The metrology of the system may be compromised if the datum clamp is not used.
The datum clamp does not need to be fitted adjacent to a reference mark. It can be positioned anywhere along the axis depending upon the customers' requirements.
NOTE: When the reference mark and datum clamp are aligned as shown below, the reference output will be positionally repeatable with respect to the substrate.
Adhesive clamp Mechanical clamp
Use a dispensing tip to apply Loctite 435 between the scale and the FASTRACK so it wicks
Reference mark selector magnet
15 ±1
underneath, adjacent to the user selected datum location, as shown.
IN-TRAC reference mark
NOTE: The drawing shows the scale datum adjacent to the chosen reference mark.
25
Do not place clamp tip over shaded area
Bolted datum clamp
3
12
1
M3 × 6 low head screw, supplied with clamp
2.3
1.7
5 mm minimum
12
thread depth
16
NOTE: Only apply Loctite 435 in these gaps to ensure the best bond. Loctite 435 will wick under
the scale to lock it to the substrate.
1
Additional screws available (pack of 25 A-9584-2047)
18 QUANTiC RTLC40 /FASTRACK incremental linear encoder system
™ ™