TKC38

Low-Cost Magnetic Single-Turn Absolute Encoder FAQ

1. What is this encoder used for?
   This is a compact, low-cost magnetic single-turn absolute encoder with a 4–20 mA current loop output. It is ideal for applications requiring continuous, accurate position feedback within a single 360° rotation.

2. Which industries or applications benefit from this encoder?

   • Industrial Automation: Monitoring equipment positions or processes.
   • OEM Machinery: Compact solutions where cost and size constraints are important.
   • Motion Control: Situations requiring reliable analog feedback (4–20 mA) within a single turn.

3. What are the key mechanical specifications?

   • Outside Diameter: 38 mm
   • Shaft Material: AISI 303 stainless steel
   • Shaft Loading: Axial 40 N; Radial 40 N
   • Speed: Up to 10,000 RPM for short cycles, 6,000 RPM continuous
   • Starting Torque (at 25°C): 0.005 Nm
   • Moment of Inertia: 6 g·cm³
   • Bearings Life: Minimum of 5 × 10? revolutions
   • Weight: ~0.1 kg

4. What are the primary electrical characteristics?

   • Supply Voltage: 19–30 V DC
   • Output Interface: 4–20 mA current loop (three-wire)
   • Supply Current (No Load): Up to 30 mA
   • Protection: Against polarity inversion

5. What resolution does it provide?
   This single-turn encoder has a 10-bit resolution (1,024 counts per turn), covering one full mechanical revolution (360°).

6. Which materials are used in its construction?

   • Flange: Aluminium S11
   • Housing: Polyamide 6 (PA6)
   • Shaft: Stainless steel (AISI 303)

7. What are the environmental specifications?

   • Operating Temperature: –10°C to +70°C
   • Storage Temperature: –30°C to +80°C
   • Relative Humidity: Up to 98% RH (non-condensing)
   • Vibration Resistance: 10 g from 10 to 2,000 Hz
   • Shock Resistance: 20 g for 11 ms

8. Why choose a 4–20 mA output?

   • Noise Immunity: 4–20 mA loops are highly resistant to electrical noise, suitable for industrial environments.
   • Long Cable Runs: Current loops maintain accuracy over long distances.
   • Standardization: 4–20 mA is a widely used standard in process control and industrial automation.

9. Where can I get more details or support?
   Refer to the product datasheet for dimensional drawings, installation instructions, and wiring information. For further assistance, contact the manufacturer’s technical support or your local distributor.