High Accuracy Vertical 6 Springs Design Linear Encoder Glass Scale with Digital Readout System
Product Specification
| | VA10 | VA11 | VA12 | VA13 | VA20 | VA21 | VA22 | VA23 |
| Measuring Standard | Glass Scale - Grating period: 20μm (0.02mm) |
| Optical Detecting System | Transmissive Infrared System: wave length 880mm |
| Slide Carrier System | Vertical five bearings supporting system |
| Resolution | 5μm | 1μm | 5μm | 1μm | 5μm | 1μm | 5μm | 1μm |
| Measurement Travel | 50-1200mm | Every 50mm per length Specification | Not available |
| 1300-3000mm | Not available | Every 100mm per length Specification |
| Accuracy | 50-450mm | ±3μm - ±5μm | -- |
| 500-800mm | ±10μm | ±5μm | ±10μm | ±5μm | -- |
| 1050-2000mm | ±10μm | ±5μm | ±10μm | ±5μm | -- |
| 1300-3000mm | -- | ±10μm/m |
| Repeatability | 2μm (0.002mm) |
| Hystersis | 3μm (0.003mm) |
| Protection | IP 53 |
| Power supply | DC 5V ± 5% |
| Output Signal | TTL | TTL | 422 | 422 | TTL | TTL | 422 | 422 |
Obviously, linear scales are essential for success involving workpieces and machine tools, because without the right measurement, you can’t get the right fit. And, without the right fit, you won’t have a successful outcome with the workpiece. In order to avoid wasting materials, time, energy, and money, it’s important to have a well-calibrated linear scale on hand for use of machine tools like power saws, turning machines, and milling machines.
Alliance calibration specializes in ensuring accuracy where it’s most needed, like in precision tools. The linear scale is one of many items that we work on. With a unique design for reading the measurements of motion and position, the linear scale promises accuracy in your machine tools, as long as the linear scale is properly calibrated.
Most modern linear scales are digital and come with an LCD display that shows a clear and exact read. Linear scales provide a very specific service. These measurement tools offer a clear read on the distance between two points by reading the motion along the path of the scale. In this way, linear scales can provide the exact dimensions of workpieces so that they can be worked on properly. By obtaining and maintaining the exact measurement with a linear scale, one can ensure that the workpiece sits properly in a machine tool, which ensures accuracy in manufacturing.
Installation Dimensions
VA20 Series
Connector interface
Easson absolute linear encoder use Gold-plated pins to avoid poor connection and Anti-corrosion, it has a small PCB inside the connector which allow the VA series Absolute Linear Scale built in the Laser compensation data and directly connect to our LCD DRO, ensure the high measuring accuracy.
DSUB 9PIN
| PIN | TTL | 422A |
| Signal | Cable | Signal | Cable |
| 1 | —— | —— | A- | Yellow |
| 2 | 0V | Orange | 0V | White |
| 3 | —— | —— | B- | Red |
| 4 | GND | GND | GND | GND |
| 5 | —— | —— | R- | Black |
| 6 | A | Yellow | A | Green |
| 7 | 5V | Red | 5V | Brown |
| 8 | B | Green | B | Blue |
| 9 | R | Brown | R | Grey |
Product Description
Advanced Optical Measuring System
The slide carrier of the VS / VA series scales, using 5 bearing design and 6 spring for optical grating linear transducer, make sure the VA scales not effected by installation, the spring can adjust the angle when the operator install not good for the alignment.
The reader head still in the best way fit on the grating glass, the accuracy of VA scale is totally different with the GS or other brand in China mainland.
VA scale has a small PCB inside the 9 PIN connector, the laser compensation data is store inside, with our LCD Digital display unit, the compensation data will directly load the ECF file (compensation file) into the DRO, accuracy up to ±2μm.
Aging Test
Easson Optical Linear Scale's reader head need to power on for 24 x 3 hours aging test before assemble,
make sure all linear scale's is reliable working for long time.
100% Laser calibration
All linear encoder glass scale are individually inspected and calibrated by our in-house laser interferometer to ensure measuring accuracy comply 100% with the specifications.
Product Tags:
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Grinder Easson Glass Scale Encoder 5um Resolution TTL Output Signal Images
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