KAVAN Smart PRO MPSW15 Magnetic switch - Instruction manual

Introduction

Congratulations on purchasing the Smart PRO MPSW15 Magnetic switch, a high-performance digital switch of the "REMOVE BEFORE FLIGHT" type. It operates using magnetic activation – inserting the supplied magnetic activation pin into the opening disconnects the power (opens the circuit). Removing the pin switches the device on and activates the connected circuit. The powered-on state is indicated by illuminated LED indicators. This system offers a safe and reliable solution for switching receivers, ignition systems, and other onboard electronics without the need for mechanical contacts. The switch provides reliable and secure control via a magnet, supports various types of loads including inductive, and—being contactless—has no wear due to switching cycles or current flow.

Features

LED indication of powered-on state
Reliable and secure control via a magnet
s
3-axis magnetometer/compass for external navigation purposes
Backup supercapacitor for fast position fix after powering off
Voltage measurement and logging
Automatic telemetry detection: FPort, Duplex EX, Hott, MSB, S.Bus2, P²Bus. Automatic timezone detection
Configuration through the transmitter or MAV Manager
Firmware updates.

Technical specifications

Dimensions: 28×30×9 mm
Weight: 14 g
Memory: 256 MB
Supported positioning systems: GPS, GALILEO, GLONASS
Recording time (5 samples/s): 66 hours
Sampling: 10 Hz, 5 Hz, 2 Hz, 1 Hz
Flash endurance: 100 000 erase cycles
Operating current: 50 mA
Operating temperature: (-20)–85 °C
Supply Voltage: 3.5–8.4 V
Telemetry: FPort, Duplex EX, Multiplex MSB, Graupner Hott, Futaba S.Bus2, PowerBox P²Bus
Status LED: Yes
GNSS receiver sensitivity: -167 dBm
GNSS max. acceleration: 4G

Available telemetry

The telemetry options depend on the radio control system. The complete data are automatically logged in the internal Flash memory.


Parameter	Description
Timestamp	Current precise GPS time.
Latitude	Coordinate North/South.
Longitude	Coordinate East/West.
Status	Indication of activity (1 = got fix) or fault condition.
Sattelites	Number of detected satellites.
Abs. altitude	Altitude above the mean sea level.
Distance	Distance from the “Home position”.
Speed	2D/3D speed referenced to the ground. The speed type can be set in the configuration.
Rel. altitude	Altitude relative to the “Home position”.
Course	Direction of the flight (heading). Values in range 0–359°: 0° = North, 90° = East, 180° = South, 270° = West. A compass heading is used if the speed is zero.
Azimuth	Position of the model respecting the “Home position”. Values in range 0–359°: 0° = North, 90° = East, 180° = South, 270° = West.
Temperature	Internal temperature.
Magnetometer X/Y/Z	3-axis magnetometer value. It can be used for further calculations.
Voltage	Receiver voltage (logged only).
Trip	Distance travelled during the flight (logged only).

Installation

Connect the Smart PRO GPS2 Logger to the receiver telemetry port. Place the device on top of the plane, so the internal patch antenna is not shielded in any direction. Shielding materials, such as metal, carbon or anything conducting, can reduce the position detection performance. Additionally, make sure that the 2.4GHz antennas are located at least 20 cm or more from the GPS Logger. Try to avoid any mechanical stress on the sensor and avoid any close contact with components producing heat (such as motors or speed controllers). Use a soft double-sided adhesive tape, or Velcro as an alternative.

For good performance of the integrated magnetometer, it is necessary to install the device at least 20 cm away from magnetized objects and cables powering servos/motors. In addition, please keep the device orientation respecting the flight direction as shown in the picture below (note the arrow on the device).