Rotary encoder

The QR series of the rotary encoder allows you to measure the rotation angle from 0° to 360° without any physical contact or stop. There are two housing options: The QR30, where the sensor and magnet are mounted separately, and the QR40, where the magnet is built into the rotating shaft inside the housing.

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Output Configuration
Accuracy type
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Tailor-made or complete customizations

Not exactly what you are looking for? We offer standard inclinometers but can also help you
with a customized design or a complete measurement solution.

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Tilt
Switches

Acceleration
Sensors
Inclinometer

Inclinometers
Cables and accessories

Cables and
Accessories

Why choose our rotary encoder?

DIS Sensors offers two different options for a rotary encoder. The options that we offer are QR30(N) and QR40. Besides those, we offer customized solutions when needed.

QR30 and QR20EMN
In the QR30- and QR20EMN range, the sensor and magnet are installed separately. You can attach the magnet to your rotating axle (on-axis). The magnet can be up to 10 mm away from the sensor, which allows for flexibility in rough conditions. The rotary encoder in this series offers various outputs with 10 or 12-bit resolution, making them useful for many applications. The back of the QR30 rotary encoder is sensitive, but for the QR30N model, the sensitive part is the front (or “nose”).

The QR30 series comes in two types: the absolute and incremental rotary encoder.

Absolute rotary encoder: This type gives an analog output that changes in a straight line with the angle of rotation, up to 360°. As soon as the power is on, it immediately knows its position.

Incremental rotary encoder: This type is good for measuring the speed of a rotating shaft. It gives out pulses (A and B signals), and the number of pulses per full rotation can range from 32 to 1024. By comparing the A and B signals, you are able to tell if the shaft is rotating clockwise or counterclockwise.

QR40
Unlike the QR30 series, the QR40 series of rotary encoders has the magnet built directly into the sensor. The shaft is D-shaped, and the QR40 includes a zero-input feature. This allows you to calibrate the rotary encoder to zero after installation, making the mounting process easier and more flexible.

Interested in the family overview of the rotary encoder? Download the overview here.

FAQ

I see that inclinometers, acceleration sensors and tilt sensors have the same family name (QG) in the product code. Why is that?

Technically, all these sensors are made with acceleration chips that measure gravitational forces (g-forces), hence the ‘G’ in the name. The gravitational force of the earth is a special form of g-force.

An inclinometer measures the angle relative to the horizon using the imaginary line from the center of the earth as a reference point. The tilt sensor uses this line to switch when a certain angle is reached and the acceleration sensor measures g-forces such as the gravitational force in the direction in which the sensor is sensitive (1, 2, or 3 axes).

Yes, you can. On our website you will find the standard versions of the DIS sensors. These sensors are mostly suitable for doing tests. If you need  a (small) series of sensors,  custom-made sensors can be supplied. Basically DIS Sensors can supply all cables, cable lengths, connectors, gains etc. To submit requests and to retrieve surcharges please fill out the form below with as much detail as possible. 

Yes, that’s no problem at all. Our wide range of high-quality sensors are designed to meet the specific needs of your projects. To ensure that we can provide you with the most accurate pricing and options, please fill out the form below with as much detail as possible. 

Sure you can. DIS Sensors can supply all required analogue output signals, such as 0 – 20mA, 0 – 5V , 1 – 9V, 0 – 10V etc. To submit requests and to retrieve surcharges please fill out the form below with as much detail as possible.

Yes, you can. We can develop custom-made housing, for example: die-cast housing or turning and milling. Please contact your local distributor or submit a request by filling out the form below.

Sometimes you can, but usually this is not possible. The right mounting method is listed on the datasheet in the box left of the product photo.

Default:
1 – axis sensor from QG30- series: horizontal or vertical
1 – axis sensor from QG65/76- series: vertical
2 – axis sensor: horizontal

Sometimes it is possible to adjust the sensor to make a different method possible.If you have questions about how to adjust the sensor please contact us by filling out the form below. 

For safety reasons the centering feature is only available during the 1st minute after power-up and for another 1 minute after a successful centering action. 

Centering is done by connecting the sensor to the centering wire (not connected/ loose). Then you have to hold the centering wire for at least 0.5 seconds to ‘ground’. The sensor has to see the transition from ‘loose’ to ‘ground’.

In addition, some sensors (usually the ones that are mounted horizontally) have a centering-range which is limited to ± 5° horizontally to prevent the sensor being centered at eg. 30° tilt and not functioning properly. Vertically mounted sensors have no range limitation and can be centered over the full 360°. A possible limitation of the centering function is always specified in the datasheet.

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