MSI-GT2/3 Series Linear Position Sensor with SSI Output

The MSI-GT2/3 series is a rod-type, high-precision, absolute, non-contact magnetostrictive linear position sensor with a measuring range from 25 to 3800 mm.
Position measurement is performed using ring-type position magnets that move along the waveguide without physical contact. The sensor flange is made of high-quality stainless steel and designed for long-term operation in demanding industrial environments.

Price on request

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Design features

  • Output signal redundancy:
    • MSI-GT2 – dual redundancy
    • MSI-GT3 – triple redundancy

Due to the sensor head design, the sensor contains 2 or 3 independent sets of electronics and measuring waveguides.

  • Absolute linear measurement (output signals proportional to magnet displacement)
  • High accuracy: resolution up to 1 µm
  • Measuring length from 25 to 3800 mm in 1 mm increments
  • Linearity < 0.01%
  • Repeatability < 0.001%
  • Operating temperature up to 75 °C
  • Protection class IP67

Configurator

MSI-GT

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M

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_

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T

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_

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S

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1

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MSI-GT2/3 Series Linear Position Sensor with SSI Output, order code:

Scope of delivery

THE SCOPE OF SUPPLY INCLUDES:

Linear position sensor

Certificate of Conformity

Manual

Warranty card

Mating connectors and magnets for the sensor must be ordered separately!

Product ordering code

TECHNICAL REQUIREMENTS FOR ORDER PLACEMENT

1

2

3

4

5

6

7

8

9

10

11

MSI-GT2

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M

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0

5

0

0

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T

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S

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S

1

B

1

1

00

1

Series:

MSI-GT2 – two independent channels

MSI-GT3 – three independent channels

2

Flange type:

M – M18 x 1.5, rod Ø 10 mm

3

Measuring range:

0025...3800 mm, 1 mm step

Other lengths available on request

4

Zero point*:

T – 50 mm

5

Connection:

D70 – 7-pin male connector, M16

H02 – PUR cable without connector, 2 m; option: H01...H20 (1...20 m)

6

Output signal:

S - SSI

7

Parallel code length:

1 – 25 bits

2 – 24 bits

3 – 26 bits

8

Coding:

B – Binary

G – Gray code

9

Resolution:

  mm

μ

1 - 0,005

2 - 0,01

3 - 0,05

4 - 0,1

5 - 0,02

6 - 0,002

7 - 0,04

8 - 0,001

 5

 10

 50

 100

 20

 2

 40

 1

10

Version:

1 – Standard

11

Options:

00 – Forward measuring direction, asynchronous mode

01 – Reverse measuring direction, asynchronous mode

02 – Forward measuring direction, synchronous mode

05 – Forward measuring direction, with 26-bit parallel code length:

25 bits = alarm;

26 bits = parity check

16 – Forward measuring direction, synchronous mode, internal linearization

Technical specifications

OUTPUT PARAMETERS

Measured value

Position

Operating range, L

25 — 3800 mm, 5 mm step

Displacement speed

up to 10 m/s

Update rate

0.5 ms up to 1200 mm; 1.0 ms up to 2400 mm;

2.0 ms up to 3800 mm;

INTERFACE

Digital interface

RS 422

Data transfer protocol

8...32 bits

Data length

Binary or Gray code, options: parity and error bit

Data format

Cable length, m: 

Baud rate, Mbit/s: 

<3

 1000

<50

<400

<100

<300

For stable operation, it is recommended to use a cable no longer than 20 meters with a data transmission rate not exceeding 500 kBaud.

POSITION MEASUREMENT ACCURACY

Resolution

1/ 2 / 5 / 10 / 20 / 50 / 100 μm (configurable at the factory)

Linearity

< ± 0.01 % F.S. (minimum ± 40 µm)

Repeatability

< ±0.001% F.S. (minimum ±2.5 µm)

Temperature coefficient

< 15 ppm/°C

Hysteresis

< 4 μm, typically 2 μm

OPERATING CONDITIONS

Operating temperature

-40 °C…+75 °C

Rated pressure

350 bar, 600 bar peak

Humidity

90 % rel. humidity, no condensation

Ingress protection

IP67, IP68 at cable outlet

MATERIALS

Sensor electronics housing

Aluminum, plastic

Sensor rod

Stainless steel ASTM A269-13 / TP304l (10x1.5)

Flange

Stainless steel 08Х18Н10 / AISI 304

MOUNTING

Mounting position

Any. When the sensor is installed horizontally with a measuring range exceeding 1000 mm, its rod must be supported or secured at the end.

Flange parameters

Flange thread M18x1.5

Position magnet mounting

Mounting hardware and screws made of non-magnetic material

ELECTRICAL CONNECTION

Operating voltage

+24 VDC (-15% / +20%)

Reverse polarity protection

up to –30 V DC

Overvoltage protection

up to 36 V DC

Current consumption

50…140 mA (depending on sensor length)

Insulation resistance

500 V DC (between sensor housing and 0 V DC)

STANDARDS, EMC TESTS

Shock test

100 g, single shock according to IEC 60068-2-7

Vibration test

15 g / 10–2000 Hz according to IEC 60068-2-6

EMC tests

GOST R IEC 61326-1-2014

Connection: cable outlet

WIRE

PIN

FUNCTION

D70

S32

Black

1

5

Data (-)

White

2

2

Data (+)

Yellow

3

1

Clock (+)

Green

4

3

Clock (-)

Red

5

7

+24 VDC (-15 / +20 %)

Blue

6

6

0 VDC (Power supply)

For stable operation, it is recommended to use a cable no longer than 35 meters.

Connection: D70 connector

PIN ASSIGNMENT

PIN

FUNCTION

M16 male

(view from sensor side)

1

Data (-)

2

Data (+)

3

Clock (+)

4

Clock (-)

5

+24 VDC (-15 / +20 %)

6

0 VDC (Power supply)

7

Not connected

Interface

SSI PROTOCOL TIMING DIAGRAM

This oscillogram shows a standard SSI transmission.

Channel 1 reads the clock signal "Clock (+)"

Channel 2 reads the binary code "Data (+)"

The interval between two transmissions (Monoflop time) is 16 microseconds. This performance corresponds to Temposonics V series sensors.

As a result, our sensors are compatible with all controllers currently available on the market.**

Connection example

DEVICE CONNECTION DIAGRAM

Setting

When replacing a failed sensor, recalibration of the equipment is required in most cases. This can be done in two ways:

  • If the customer’s machine has a calibration function, after replacing the sensor, the operator assigns the new end positions to the machine’s control system by moving the mechanism in manual mode.
  • Using the MSI-253 135 programmer, the new zero point value can be programmed directly into the sensor. The procedure is similar to the first method, but in this case, the value is assigned to the sensor rather than to the customer’s machine.

MSI-253 135 PROGRAMMER

Description:

USB-SSI programmer for digital sensors of the following series:

MSI-H — rod-type (up to 9 meters);

MSI-P — profile-type (up to 4 meters);

MSI-D — with remote electronics module (up to 5 meters);

MSI-F — flexible type (up to 20 meters);

MSI-B — rod-type (with insertion flange);

MSI-HS — rod-type (IP68).


Functionality:

Zero point programming;

Adjustment of all SSI parameters;

Sensor operational diagnostics.

STANDARD SCOPE OF SUPPLY INCLUDES:

SSI to USB converter, MSI-251 135 (1 pc)

USB cable, type A to type B, length 1.8 m (1 pc)

Power supply unit, 220 VAC to +24 VDC (1 pc)

User manual (1 pc)

Position ring marker, part no. MSI-201 542-2 (1 pc)

Software is available via download link.

OPTIONAL:

Cable (60 cm) with straight M16 connector (female, 7-pin) – for connecting sensors with D70 connection (1 pc)

Cable (60 cm) with straight M16 connector (female, 8-pin) – for connecting sensors with S32 connection (1 pc)

Cable (60 cm) with straight M12 connector (female, 8-pin) – for connecting sensors with D84 connection (1 pc)

Cable (60 cm) with 6 terminal clamps – for connecting sensors with cable outlet (1 pc)

Interchangeability

Temposonics GT vs MSI-GT

Comparison of Temposonics GT and MSI-GT sensorsComparison of Temposonics GT and MSI-GT sensorsComparison of Temposonics GT3 and MSI-GT3 sensors

Downloads

Technical Documentation

v.2.1 – 24.10.25

PDF

11 МБ

11 МБ

01.04.2025

PDF

4 МБ

4 МБ

31.05.2023

PDF

59 КБ

59 КБ

Certificates
Verification

07.04.2024

PDF

5 МБ

5 МБ

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