Technical Data Magnetic Tape - ELGO Electronic PMIX Series Operating Manual

4.4

Technical Data Magnetic Tape

With a PMIX system, the magnetic tape is already integrated in the guide cylinder and thus must not be installed.
The magnetic tape consists of two components:
The actual magnetic tape which carries the position information

A mechanical stainless steel back iron

Table 3: Technical Data Magnetic Tape
Magnetic tapes for PMIX
Used type of magnetic tape with LMIX sensor: MB20-50-10-1-R
Operating temperature -20 °C ... +65 °C
Relative humidity max. 95 %, non-condensing
Accuracy at 20° C in mm with LMIX sensor: ± (25 µm + 20 µm x L)
Material carrier tape Precision strip 1.4310 / X10CrNi 18-8 (EN 10088-3)
Double-faced adhesive tape 3M-9088
Length expansion coefficient   16 x 10
Thermal length expansion ∆L[m] = L[m] x [1/K] x ∆[K]
Influence of external magnets External magnetic fields must not exceed 64 mT (640 Oe; 52 kA/m) on
Protection class IP65
4.4.1 Resistance against Chemical Influence
In contact with various substances behaves the magnetic tape (integrated in the guide cylinder) as follows:
Table 4: Resistance against Chemical Influence
Show no or little effect in constant contact after 2-5 years:
formic acid glycerol 93°C
cotton seed oil N-hexane
formaldehyde 40% Iso octane
Show weak to moderate effects in constant contact after approximately 1 year:
acetone gasoline
acetylene steam
ammonia acetic acid 20%
kerosene
Have strong effects when contacting permanently after 1-5 months:
benzene nitric acid 70%
lacquer solvent nitric acid, red, vitriolic
trichloroethylene nitrobenzene
with EMIX sensor: MB20-20-10-1-R
with IZ indicator: MB 20-25-10-1-R
Coding Incremental, single track system
Pole pitch with LMIX sensor: 5 mm
with EMIX sensor: 2 mm
with IZ indicator: 2.5 mm
with EMIX sensor: ± (20 µm + 20 µm x L)
with IZ indicator: ± (25 µm + 20 µm x L)
L = measuring length in meters
-6
(L = tape length in meters, ∆ = relative temperature change)
the surface of the magnetic tape because this could damage or destroy
the code on the tape.
linseed oil
lactic acid
petroleum
acetic acid 30%
acetic acid, pure acetic acid
isopropyl ether
turpentine
carbon tetrachloride
hydrochloric acid 37%, 93°C
1/K
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Technical Data
soy beans oil
oleic acid
sea water
stearic acid 70°C, anhydrous
toluene
tetrahydrofuran
xylene