MEGATRON Elektronik GmbH & Co. KG ▪ Hermann-Oberth-Strasse 7 ▪ 85640 Putzbrunn / Munich
Tel.: +49 89 46094-0 ▪ www.megatron.de ▪ info@megatron.de
Date: 07/04/2022
Page 1
Specications are subject to change without notice
Multiturn
ETA25 PM
Incremental
(ETI25)
Technical
Data
Drawings
Analogue (ETA25)
PWM
(ETP25)
Redundant
Voltage/Current
Serial (HTS36)
Redundant SER/SPI/SSI
Serial (ETS25)
Redundant SER/SPI/SSI
Contents
General
Accessories
Overview
Multiturn
ETA25KPM
Incremental
(ETI25K)
Technical
data
Drawings
Analogue (ETA25K)
Redundant
Voltage/Current
Serial (ETS25K)
Redundant SER/SPI/SSI
Content General
PWM
(ETP25K)
Accessories
Overview
Hall eect kit encoders with ange mount Family ETx25K
Mechanical engineering
Equipment manufacturing
Speed measurement with low operational
speeds (up to 100 rpm)
Motor commutation
Driverless transport systems
Medical equipment
Special vehicles
High requirements on the lifetime
Requirements of a user dened signal
output function
As panel encoder for manual input
ApplicationsKey features
Ø25 mm housing made of glass bre reinforced
thermoplastic
Magnetic, gradient-based signal evaluation
Digital signal processing
Sealing IP67
Operating temperature range -40 to 85°C
Measurement range up to 360° singleturn, 72000° multiturn
Electrical connection: 0.15 m at ribbon cable, 1 m round
cable, solder holes or clamping terminals
Ex works programmable signal output functions (single turn),
eld-programmable signal output for multiturn version
Mechanical stop and higher torque available for panel
encoder applications
Output variants
Singleturn absolute encoders Analogue voltage or current loop output (12 bit resolution)
Analogue PWM output (12 bit resolution)
Digital outputs SPI (14 bit, also redundant), SER or SSI (12 bit optional with UVW up to 16
pole pairs)
Absolute linearity up to 0.6%
Programmable single or
multiturn absolute encoder
Analogue voltage or current loop output (12 bit resolution), range of 10° to 72000°
Not True-Power-On, max. 200 revolutions (72000°)
Can be used as a eld-programmable single-turn encoder
Incremental encoders 1 to 1024 Impulses per revolution (ppr.)
Outputs TTL, Push-Pull, Open Collector or Linedriver, optional with UVW up to 16 pole pairs
with atribbon cable
with round signal cable
MEGATRON Elektronik GmbH & Co. KG ▪ Hermann-Oberth-Strasse 7 ▪ 85640 Putzbrunn / Munich
Tel.: +49 89 46094-0 ▪ www.megatron.de ▪ info@megatron.de
Date: 07/04/2022
Page 2
Specications are subject to change without notice
Multiturn
ETA25 PM
Incremental
(ETI25)
Technical
Data
Drawings
Analogue (ETA25)
PWM
(ETP25)
Redundant
Voltage/Current
Serial (HTS36)
Redundant SER/SPI/SSI
Serial (ETS25)
Redundant SER/SPI/SSI
Contents
General
Accessories
Overview
Multiturn
ETA25KPM
Incremental
(ETI25K)
Technical
data
Drawings
Analogue (ETA25K)
Redundant
Voltage/Current
Serial (ETS25K)
Redundant SER/SPI/SSI
Content General
PWM
(ETP25K)
Accessories
Overview
Hall eect kit encoders with ange mount Family ETx25K
ETx25K encoders – compact and versatile
The ETx25 series rotary kit encoders are specially designed for applications where the customer wants to
measure the rotation or angular position of externally mounted components. The non-contact rotary encoders in
the Ø25 housing made of glass bre reinforced thermoplastic can be precisely matched to the respective area of
application thanks to their numerous electronic options. Whether as incremental or absolute encoders, they cover
a wide range of applications and, depending on the output electronics, are used in systems, laboratory devices
and medical devices, for example.
ETx25K encoders are among the most versatile encoders on the market. The customer places the supplied
magnet on a component, places the rotary encoder at a dened distance from the magnet and can thus use
the sensor to record the angular position without a mechanical connection between the rotary encoder and the
moving part. Signal processing is digital and based on the magnetic (Hall Eect) acquisition of measured values.
The gradient-based evaluation ensures high interference immunity, e. g. against temperature uctuations and
EMC inuences. This technology leaves the disadvantages of conventional Hall sensors far behind. ETx25
rotary encoders are designed for maximum service life and even outperform the robust optical data acquisition.
The number of defects or failures in rotary encoders of this technological design is practically zero, even after
decades of use.
In addition to a large number of standard options, the modular system of the ETx25K rotary encoder enables
optimal adaptation to the respective application. In addition, the concept also allows prompt customer-specic
adjustments (even in small series) on the basis of a clearly structured price model. Typical modications are, for
example, customer-specic signal output functions, special cable lengths or individually assembled electrical
connection cables.