Elgo EMAL Series, Operating Manual

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Technical Data
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6.6 Technical Data Magnetic Tape
The magnetic tape consists of two components:

The actual magnetic tape which carries the position information

A mechanical stainless steel back iron
Magnetic Tape AB20-50-20-2-R-11 and AB20-50-20-2-R-12
Coding absolute, dual track system
Pole pitch 5 mm
Operation temperature installed
−20 °C … +65 °C
(−20°C … +80°C when using without adhesive tape, options „B“ or „D“)
Storage temperature uninstalled
Short-term: −10°C … +60°C
Medium-term: 0°…+40°C
Long-term: +18°C
(−20°C … +80°C when using without adhesive tape, options „B“ or „D“)
Gluing temperature: +18°C … +30°C
Relative humidity max. 95 %, non-condensing
System accuracy in µm at 20°C
(L = measuring length in meters) ±(150 + 20 x L) (standard 010

12)
±(50 + 20 x L) (option F10

12)
Material carrier tape Precision Strip Steel 1.4310 / X10CrNi 18-8 (EN 10088-3)
Double-faced adhesive tape 3M-9088 (observe instructions), others on request
Dimensions 20 mm (±0.3 mm) x 1.8 mm (±0.1 mm)
Length expansion coefficient 
16 x 10
-6
1/K
Thermal length expansion
∆L[m] = L[m] x

[1/K] x ∆

[K]
(L = tape length in meters, ∆  = relative temperature change)
Available measuring lengths
EMAX: max. 10 m
EMAL: max. 20 m
min. 0.2 m
Weight magnetic tape ca. 62 g/m (incl. magnetic tape and cover tape)
Tape imprint ELGO standard, printing color black, digit height >= 5 mm
Influence of external magnets
External magnetic fields must not exceed 64 mT (640 Oe; 52 kA/m) on
the surface of the magnetic tape as this could damage or destroy the code
on the tape.
Protection class IP65