21
QUANTiC RTLC40-S installation guide
RTLC40-S scale specifications
Form
(H × W)
0.4 mm × 8 mm (including adhesive)
Pitch
40 μm
Accuracy
(at 20 °C)
(includes slope and linearity)
RTLC40-S ±15 µm/m calibration traceable to International Standards
RTLC40H-S ±5 µm/m calibration traceable to International Standards
Linearity
RTLC40-S ±5 µm/m achievable with 2 point error correction
RTLC40H-S ±2.5 µm/m achievable with 2 point error correction
Supplied length
20 mm to 10 m
*
(> 10 m available on request)
Material
Hardened and tempered martensitic stainless steel fitted with a self-adhesive backing tape
Mass
12.9 g/m
Coefficient of thermal expansion
(at 20 °C)
10.1 ±0.2 µm/m/°C
Installation temperature
15 °C to 35 °C
Datum fixing
Loctite 435 with A-9585-0028 clamp
Reference mark
Type
Customer selected
IN-TRAC
reference mark, directly embedded into incremental track.
Bi-directional position repeatability
Selection
Single reference mark selection by selector magnet (A-9653-0143) customer positioned.
L ≤ 100 mm
Single reference mark at scale centre
L > 100 mm Reference marks at 50 mm spacing (first reference mark 50 mm from scale end)
Repeatability
Unit of resolution repeatability (bi-directional) across full system rated speed and
temperature ranges
Limit switches
Type
Magnetic actuators; with dimple triggers Q limit, without dimple triggers P limit
(‘RTLC40-S scale installation drawing’, page 4)
Trigger point
The limit output is nominally asserted when the readhead limit switch sensor passes the
limit magnet leading edge, but can trigger up to 3 mm before that edge
Mounting
Customer placed at desired locations
Repeatability
< 0.1 mm
*
For lengths > 2 m
FASTRACK
™
carrier with RTLC40 is recommended. Refer to
QUANTiC
™
RTLC40 / FASTRACK
™
incremental linear encoder system
installation guide
(Renishaw part no. M-9417-9248).