At a Glance
- Capacities: 0-1Nm to 0-5000Nm
- ±5Vdc Output
- Non-Linearity: <±0.15%/Rated Capacity
- Optional Pulsed Angle Output
- Max Speed: 7000 to 12,000rpm (depending on capacity)
- Maintenance Free Thanks to its Non-Contact Technology
- Ideal for Automotive Industry, Test Benches, Assembly Applications & Pulsed Tools
- High Accuracy Guaranteed – Uses Proven Strain Gauge Technology
- Optimum Performance Delivered – Its Integrated Signal Amplifier Reduces Signal Interference
Description
The DRFN series of brushless non-contact torque sensors manufactured by ETH Messtechnik in Germany provide accurate torque measurement in continuously rotating applications at speeds up to 12,000rpm and has a square drive type mechanical connection.
The DRFN features integral signal conditioning gives a ±5Vdc analogue signal. A 360 pulses/revolution angle output is optional on all capacities.
The DRFN brushless square drive torque sensor offers excellent accuracy making it suitable for many manufacturing, assembly and test bench applications.
Request a quotation from our technical sales team.
Technical Specifications
Product Dimensions
Capacity (Nm) | Square Drive | A | B | C | D | E | F |
|---|---|---|---|---|---|---|---|
1, 2, 5, 10, 12, 15, 20 | 1⁄4" | 62 | 32 | 56 | 16 | 77 | 8 |
20, 30, 50, 63 | 3⁄8" | 62 | 24 | 52 | 16 | 82 | 12 |
100, 160, 200 | 1⁄2" | 66 | 40 | 57 | 20 | 95 | 16 |
200, 300, 500 | 3⁄4" | 66 | 46 | 65 | 23 | 110 | 24 |
1000, 2000 | 1" | 66 | 52 | 71 | 23 | 127 | 31 |
2000, 3000, 4000, 5000 | 11⁄2" | 86 | 92 | 108 | 46 | 178 | 44 |
Capacity (Nm) | Square Drive | A | B | C | D | E | F |
|---|---|---|---|---|---|---|---|
1, 2, 5, 10, 12, 15, 20 | 1⁄4" | 66 | 32 | 51 | 16 | 82 | 9 |
20, 30, 50, 63 | 3⁄8" | 66 | 40 | 59 | 20 | 90 | 12 |
100, 160, 200 | 1⁄2" | 66 | 40 | 59 | 20 | 97 | 16 |
200, 300, 500 | 3⁄4" | 71 | 55 | 74 | 27.5 | 117 | 24 |
1000, 2000 | 1" | 72 | 56 | 73 | 28 | 132 | 30.5 |
2000, 3000, 4000, 5000 | 11⁄2" | 86 | 92 | 108 | 46 | 178 | 44 |
All dimensions are in mm.
Wiring Details – AK12.4 Cable Assembly
| Pin | Colour | Designation for DRVL Torque Transducer |
|---|---|---|
| A | Green | Torque Output Signal: Frequency 10kHz ±5kHz |
| B | Red / Blue | Angle Output: Track A = 0° |
| c | Yellow | Torque Output Signal: ±10Vdc |
| D | White | Torque Output GND/0V (note: can be connected to supply GND / Pin E) |
| E | Grey | Supply GND/0V & Angle/Speed Output GND/0V |
| F | Pink | Supply: 12Vdc ±10% |
| G | Grey / Pink | Speed/Angle Output: Track B = 90° |
| H | Purple | Memory Chip (factory use only) |
| J | Black | Sensor Health Check Signal (factory use only) |
| K | Red | Control Input (factory use only) |
| L | Brown | Torque Output Signal: Frequency 10kHz ±5kHz (inverted) |
| M | Blue | External Voltage Reference Input for Speed/Angle Signal (optional) |
| Screen | Connect cable screen to earth |
Due to our policy on ongoing development, dimensions and specifications may change without notice.
Downloads
CAD Model Files
Our 3D models are provided in STEP format and can be viewed using FreeCAD. Other formats can be provided on request.
The .zip file below contains a separate model for each product variant.
Why Applied Measurements?
- Suppliers of top quality strain gauge sensors and transducers to every corner of industry - UK and worldwide
- Over 100 years of expert transducer knowledge
- Our high quality products all come with a 3 year warranty
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