MSI-F Series Magnetostrictive Linear Position Sensor with SSI Output
Flexible, high-accuracy absolute non-contact magnetostrictive position sensor for stroke lengths from 900 up to 20 000 mm.
Position measurement is performed using ring-type position magnets moving along the waveguide without mechanical contact, ensuring wear-free operation and long service life.
The sensor flange is made of high-grade stainless steel, providing excellent durability and suitability for harsh industrial environments.
The MSI-F supports sensor lengths of up to 20 meters. Thanks to the flexible waveguide design, the sensor can be supplied in compact packaging (900 × 900 × 100 mm), allowing safe transportation regardless of the measuring length.
Price on request
Design Features
- Flexible waveguide design
- Absolute linear measurement (output signals proportional to magnet displacement)
- LED status indicator for sensor diagnostics
- Durable non-contact sensing technology
- High accuracy: resolution up to 1 µm
- Measuring length from 900 to 20 000 mm in 1 mm increments
- Linearity < 0.01%
- Repeatability < 0.001%
- PTFE-coated waveguide
Configurator
MSI-F
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MSI-F Series Magnetostrictive 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-F | . | S | . | 0 | 5 | 0 | 0 | . | T | . | D70 | . | S | 1 | B | 2 | 1 | 0 | 0 |
1 | Series: MSI-F - flexible | ||||||||||||||||||
2 | Flange Type: M – M18 × 1.5, rod Ø10 mm S – 3/4”-16 UNF, rod Ø10 mm | ||||||||||||||||||
3 | Measuring Range: 0900...20000 mm, 5 mm step Other lengths available on request | ||||||||||||||||||
4 | Zero Point: T – 50 mm (for lengths < 8000 mm) T2 – 130 mm (for lengths ≥ 8000 mm) | ||||||||||||||||||
5 | Connection: D70 – M16 (7-pin) male connector S32 – M16 (8-pin) male connector D84 – M12 (8-pin) male connector R02 – PVC cable without connector, 2 m; option: R01...R20 (1...20 m) H02 – PUR cable without connector, 2 m; option: H01...H20 (1...20 m) T02 – PTFE cable without connector, 2 m; option: T01...T20 (1...20 m) S02 – Silicone cable without connector, 2 m; option: S01...S20 (1...20 m) W02 – Moisture-resistant cable without connector, 2 m; option: W01...W20 (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 data
OUTPUT PARAMETERS | ||||
Measured quantity | Position | |||
Operating range, L | 900 — 20000 mm, 1 mm step | |||
Movement speed | Any | |||
Update rate | 0.5 ms up to 1200 mm; 1.0 ms up to 2400 mm; 2.0 ms up to 3800 mm; 3.0 ms up to 7600 mm; 6.0 ms up to 16800 mm; 7.0 ms up to 20000 mm | |||
Status diagnostics | LEDs next to the connector | |||
INTERFACE | ||||
Digital Interface | RS 422 | |||
Data Transfer Protocol | SSI – Synchronous Serial Interface Data format: Binary coding or Gray code (24...26 bits) | |||
Number of magnet | 1 | |||
Max cable length | 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 | ||||
Linearity deviation | < ± 0.01 % F.S. (minimum ± 40 µm) | |||
Repeatability | < ± 0.001 % F.S. (minimum ± 2.5 µm) | |||
OPERATING CONDITIONS | ||||
Рабочая температура | -40 °C…+75 °C | |||
Номинальное давление | 350 bar, 600 bar peak (optional 800 bar) | |||
Точка росы, влажность | 90 % rel. humidity, no condensation | |||
Класс защиты | IP67, IP68 at cable outletat cable outlet | |||
MATERIALS | ||||
Sensor electronics housing | Anodized aluminum | |||
Rod | Fluoroplastic / Teflon / PTFE | |||
Flange | Stainless steel 08Х18Н10 / AISI 304 | |||
MOUNTING | ||||
Mounting position | Any. Maximum bending radius of the flexible rod: 250 mm. | |||
Flange parameters | Flange bolt M18 x 1.5 or 3/4" -16 UNF-3A, nut M18 | |||
Position magnet mounting | Spacer and screws made of non-magnetic material | |||
ELECTRICAL CONNECTION | ||||
Operating voltage | +12/24 VDC (-10% / +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 | |||
Connector wiring: cable
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) | |
Connector wiring: D70
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 |
Connector wiring: S32
S32 CONNECTOR PIN ASSIGNMENT | PIN | FUNCTION |
![]() M16 male (view from sensor side) | 1 | Clock (+) |
2 | Data (+) | |
3 | Clock (-) | |
4 | Not connected | |
5 | Data (-) | |
6 | 0 VDC (Power supply) | |
7 | +24 VDC (-15 / +20 %) | |
8 | Not connected |
Connector wiring: D84
PIN CONFIGURATION D84 | PIN | OUTPUT |
M12 male connector (view from cable entry side) | 1 | Clock (+) |
2 | Clock (-) | |
3 | Data (+) | |
4 | Data (-) | |
5 | Not connected | |
6 | Not connected | |
7 | +24 VDC (-15 / +20 %) | |
8 | 0 VDC (Power supply) |
Mounting Recommendations
Flexible Waveguide
A sensor with a flexible waveguide is used in vertically installed hydraulic cylinders, as well as in applications that require non-standard measurements, both in terms of length and motion. The Teflon coating of the waveguide allows the sensor to be used in harsh environments with high levels of contamination.
Position measurements are performed using ring-shaped magnets that move along the sensing rod without physical contact. The sensor with a flexible waveguide can be mounted either inside the hydraulic cylinder or on the equipment using special clamping brackets.
INSTALLATION WITHOUT AUXILIARY TUBE | |||
The minimum bend radius is 250 mm. Exceeding this limit may cause irreversible damage to the sensor waveguide due to stretching and deformation. ![]() | |||
INSTALLATION WITH AUXILIARY TUBE | |||
The sensor flange accommodates the installation of an auxiliary tube with the following dimensions: - Outer Ø 10 mm, inner Ø 8 mm, maximum length 8 meters ![]() - Outer Ø 12.7 mm, inner Ø 8.5 mm, maximum length 20 meters ![]() The auxiliary tube must be made of non-magnetic material. For horizontal installation, clamping brackets must be installed every 500 mm. For ordering the auxiliary tube: Ø 10 mm: order code 100HFXXXXX, where XXXXX = stroke length in mm + 150 mm Ø 12.7 mm: order code 127HFXXXXX, where XXXXX = stroke length in mm + 230 mm Example: For a sensor with a 900 mm stroke length, order code: 100HF01050 For a sensor with an 8500 mm stroke length, order code: 127HF08730 | |||
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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.** |
Более подробно про синхронно-последовательный интерфейс (SSI) можно почитать в данной статье.
Connection example
DEVICE CONNECTION DIAGRAM |
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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, MSI-P, MSI-D, MSI-F, MSI-B. Functions: Zero point programming; Ability to modify all SSI parameters; Sensor functionality diagnostics. |
Scope of delivery: Programmer art. no. MSI-253 135 for SSI linear position sensors (1 pc.); Power supply 220 VAC → 24 VDC (1 pc.); USB cable (1 pc.); Ring-shaped position magnet art. no. MSI-201 542-2 (1 pc.); Connection cable for sensor with D70 connector (1 pc.); Connection cable for sensor with S32 connector (1 pc.); User manual (1 pc.). | |
Status diagnostics
LED DIAGNOSTICS | GREEN | RED | STATUS |
![]() | Off | Off | No power supply or sensor fault |
On | Off | Normal operation | |
On | On | No position magnet or incorrect number of magnets | |
Depends on status | Off | Programming mode, accessible via USB-SSI programmer art. no. MSI-253 135 |
Interchangeability
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