Gefran IK4A Data Sheet

IK4A (with ONDA technology)

CONTACTLESS MAGNETOSTRICTIVE LINEAR POSITION
TRANSDUCER (ANALOG OUTPUT)

Main characteristics

• ONDA technology

• Optimized mechanical structure

• Strokes from 50 to 4000 mm

• Wide range of connectors for the electrical connection

•

Rod, nipple, exagonal flange AISI 316

• Work temperature: -30°…+75°C

• Resistance to vibrations (DIN IEC68T2/6 12g)

• Power supply 24Vdc ± 20%

• Protection IP67

Contactless linear position transducer with ONDA magnetostrictive
technology.
The analog interface, available with various output ranges in voltage
or in current, guarantees simpler installation and easier adaptation to
existing systems.
The absence of electrical contact on the cursor eliminates all wear
and guarantees almost unlimited life.
The IK4 mechanical structure introduces some innovations for using
in-cylinder, including free rotation of the connector head.

TECHNICAL DATA

Model from 50 to 4000 mm

ELECTRICAL DATA

Output signal 0...10V (A) 4...20mA (E)

Measurements displacement

Position read sampling
time (typical)

From 0,5 ms to 3 ms

(depending on stroke)

Shock test DIN IEC68T2-27 100g - 11ms - single shock

Vibration DIN IEC68T2-6 12g / 10...2000Hz

Displacement speed ≤ 10 m/s

2

Max. acceleration ≤ 100 m/s

displacement

Resolution 16 bit (max noise 5 mVpp)

Cursor Floating separate cursor

Working temperature -30...+75°C

Storage temperature -40...+100°C

Coefficient of temperature ≤ 0,01% F.S./°C

Protection IP67

Operative pressure 350 bar (peak max. 500 bar)

Nominal power supply 24 Vdc ±20% 24 Vdc ±20%

Max. power ripple 1Vpp 1Vpp

Max. consumption 70mA 90mA

Load on output 5kΩ < 500Ω

Max. output noise < 5mVpp < 5mVpp

Max. output value 12V 30mA

Alarm output value 10.5V 21mA

Electrical isolation 500V (*) 500V (*)

Protection against polarity
inversion

Protection against overvoltage Yes Yes

Protection against power supply
on output

(*) Using voltage suppressor 30V 0,4J

ELECTRICAL / MECHANICAL DATA

Model

Sampling
time

Dimensions
Max. (A)

Electrical
stroke

Independent
linearity

Repeatibility mm < 0,01

Hysteresis mm < 0,01

50 100 130 150 200 400 450 500 600 700 750 800 900 1250 1500 1750 2000 2250 2500 2750 3000 3250 3500

225 300 1000 3750 4000

ms

mm

mm

0,5 1 1,5 2 3

Model +178,2 Model +183,2

Model

≤ ± 0,02% FS (min ± 0,060 mm)

0...20mA (G)

Yes Yes

Yes Yes

MECHANICAL DIMENSIONS

Strokes from 50 to 1000 mm

no active

zone

Strokes from 1250 to 4000 mm

no active

zone

no active

Floating magnet

Floating magnet

zone

Installation surface

no active

zone

M4 thread
prof. 6

IK4-A-F/R cable output IK4-A-A/B/C/H connector output

MOUNTING INSIDE A CYLINDER

no active

zone

*

Installation surface

no active

zone

Non-magnetic spacer

Floating magnet

* for stroke up to 1000 mm (included) – over 1000 mm, the non-active zone becomes 60 mm because the tip includes a M4 threaded
hole