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
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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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 | . | M | . | 0 | 5 | 0 | 0 | . | T | . | S | . | 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 |
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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 — 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



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