Data Sheet for Angle Sensors
MEGATRON Elektronik GmbH & Co. KG ▪ Hermann-Oberth-Strasse 7 ▪ 85640 Putzbrunn / Munich
Tel.: +49 89 46094-0 ▪ www.megatron.de ▪ info@megatron.de
Date: 02/23/2022
Page: 1 of 29
3D Hall Rotary Encoder with Sleeve Bearing and Flange Mounting
Family ETx25F
Specications are subject to change without notice
Drawing
Mechanical
Data
Analogue (ETA25F)
(Vollwelle)
PWM Redundant Voltage / Current
Multiturn
ETA25F PM
Incremental
(ETI25F)
Accessory
Serial (ETS25F)
(Vollwelle)
Redundant SER/SPI
Overview
Comparison
General
3D Hall magnetic gradient-based signal capturing
µ Processor controlled digital signal processing
Housing made of glass-bre reinforced thermoplastic
Metal sleeve bearing > 100 million shaft revolutions
Ø6 mm stainless steel shaft
Up to IP55M (IP66S)
Operating temperature range -40..85°C
Measuring range up to 360° singleturn, 72000° multiturn
Electrical connection: 0.15 m at ribbon
cable or 1 m round cable
Programmable
ETx25F Family Key Features:
Analogue singleturn: voltage - also redundant,
current, PWM
Analogue multiturn: voltage
Incremental: AB+index (Z)
up to 1024 ppr (4096 steps)
Digital: SPI - also redundant, SER
Output electronics:
MADE IN GERMANY
Apparatus construction
Angular measurements
Speed measurement
With low operational speeds
[up to 100 rpm]
Simple up to medium environmental requirements
High requirements on the lifetime
Applications with increased vibrations
Requirements to an user dened signal output
function
Applications:
ETx25F rotary encoders with shaft and shaft bearing:
Our ETx25F rotary encoder product family is based exclusively on state-of-the-art 3D Hall gradient-based µ processors with
digital signal processing. ETx25F angle encoders use the well established rotary encoder platform from the hugely popular
ETx25 high-runner rotary encoder family from MEGATRON.
ETx25F rotary encoders dier from angle encoders of the ETx25 family (without F in its product name), by the ange
mounting and by the absence of electrical connections such as clamping connections or solder connections.
The ETx25F rotary encoder concept focuses on applications with simple to medium environmental requirements. With a
service life of >100 million shaft revolutions, thanks to the applied sleeve bearing which is one of the best on the market.
For measuring, the shaft of the ETx25F is normally linked to the application by means of a shaft coupling.
ETx25F rotary encoders are widely resistant to temperature changes, external magnetic elds, shocks and vibrations.
MEGATRON implements customer-specic adaptations in a timely manner starting from small series on the basis of a clearly
structured price model. The signal output function of single-turn rotary encoders with analogue outputs can be programmed
ex works according customer's wishes. Our combined single/multiturn absolute encoder ETA25F PM allows also the
programming of the encoder by the customer to the needs of his application.
Data Sheet for Angle Sensors
MEGATRON Elektronik GmbH & Co. KG ▪ Hermann-Oberth-Strasse 7 ▪ 85640 Putzbrunn / Munich
Tel.: +49 89 46094-0 ▪ www.megatron.de ▪ info@megatron.de
Date: 02/23/2022
Page: 2 of 29
3D Hall Rotary Encoder with Sleeve Bearing and Flange Mounting
Family ETx25F
Specications are subject to change without notice
Drawing
Mechanical
Data
Analogue (ETA25F)
(Vollwelle)
PWM Redundant Voltage / Current
Multiturn
ETA25F PM
Incremental
(ETI25F)
Accessory
Serial (ETS25F)
(Vollwelle)
Redundant SER/SPI
Overview
Comparison
General
Index Page
Information about the ETx25F rotary encoder family:
Quick overview ETx25F series 3/4/5
Technical drawings 6
Mechanical and environmental data, scope of delivery 7
Compliance 8
Options 9
Support 9
Accessory 29
Information about the ETx25F rotary encoder series:
(electrical data, order codes, pin assignments)
Singleturn rotary encoder (measuring range up to 360°):
Analogue output not redundant:
ETA25F voltage/current 10/11
Analogue output redundant:
ETA25F X voltage 12/13/14
Analogue PWM output not redundant:
ETP25F PWM 15/16
Incremental output not redundant:
ETI25F incremental 17/18/19
Digital output not redundant:
ETS25F SER, SPI 20/21
Digital output redundant:
ETS25F X SPI 22/23/24
Multiturn/singleturn rotary encoder, programmable (measuring range up to 72000°):
Analogue output not redundant:
ETA25F PM voltage 25/26/27/28