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  1. Detection - Measurement
  2. Position, Speed and Acceleration Measurements
  3. Absolute rotary encoder
  4. SENTOP by Shanghai Sibo M&E Co., Ltd.

Absolute rotary encoder EAM50A
magnetic12-bit14-bit

Absolute rotary encoder - EAM50A - SENTOP by Shanghai Sibo M&E Co., Ltd. - magnetic / 12-bit / 14-bit
Absolute rotary encoder - EAM50A - SENTOP by Shanghai Sibo M&E Co., Ltd. - magnetic / 12-bit / 14-bit
Absolute rotary encoder - EAM50A - SENTOP by Shanghai Sibo M&E Co., Ltd. - magnetic / 12-bit / 14-bit - image - 2
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Go to the SENTOP by Shanghai Sibo M&E Co., Ltd. website for more information

Characteristics

Type
absolute
Technology
magnetic
Absolute encoder resolution
12-bit, 14-bit
Construction
multi-turn
Output signal
digital, SSI
Material
aluminum, stainless steel
Protection level
magnetically shielded, IP65
Incremental encoder résolution (pulses per revolution

Max.: 16,384 unit

Min.: 4,096 unit

Shaft diameter

8 mm
(0.31 in)

Process temperature

Max.: 85 °C
(185 °F)

Min.: -25 °C
(-13 °F)

Description

Overview
  • Model: EAM50A
  • Type: Absolute multi-turn magnetic encoder with SSI differential output


Key characteristics
  • Magnetic sensing technology
  • Multi-turn capability: 4096 turns (12‑bit)
  • Optional single-turn resolution up to 16384 (14‑bit)
  • Protection class: IP65
  • Output: SSI differential (TTL signal level)
  • Includes one pair of precision ball bearings
  • Designed for resistance to magnetic interference


Dimensions
Dimension diagram available (file example: 尺寸图_SENTOP_EAM50A.jpg).

Mechanical specifications
  • Protection degree: IP65
  • Starting torque: ≤1 mN·m
  • Life expectancy: >100,000,000 cycles
  • Mass: Approx. 150 g
  • Housing: Anodized aluminium alloy
  • Shaft: Stainless steel, diameter φ8, front end milling
  • Shaft load: ≤30 N


Environmental specifications
  • Operating temperature: -25℃ to +85℃
  • Storage temperature: -25℃ to +85℃
  • Vibration: 100 m/s², 55 Hz–2000 Hz (EN 60068-2-6)
  • Shock: 500 m/s², 13 ms (EN 60068-2-27)
  • ESD: Contact discharge ±8 kV, Air discharge ±15 kV (EN61000-4-2)
  • EMS: 100 V/m (80 MHz–1 GHz) (EN61000-4-3)


Electrical specifications
  • Standard model: EAM50A-S2-W1212BA
  • Supply voltage: 9–30 V
  • Current consumption: <80 mA
  • Single-turn resolution: 4096 (12‑bit), optional up to 16384 (14‑bit)
  • Multi-turn resolution: 4096 (12‑bit)
  • Interface: SSI differential; Code: Binary / Gray; Signal level: TTL
  • Update time: 10 μs
  • Insulation resistance: >1000 MΩ (500 V DC)
  • Dielectric strength: 1 min at 500 V AC


Options
  • Custom shaft lengths, diameters or machining (slotting, flats, holes) available on request

Catalogs

Go to the SENTOP by Shanghai Sibo M&E Co., Ltd. website for more information

Other SENTOP by Shanghai Sibo M&E Co., Ltd. products

Encoders

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.