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Assan GA-250 Manual

Micro gyro

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The GA-250 is a high performance advanced AVCS/MEMS gyro, especially designed and optimized for R/C

helicopters. It is very small in size and very light weight. It is easy to set up and compatible with a wide range of

(digital only) servos. Its head-lock performance is superior, even for hard 3D applications.

Technical Features

Sensor: MEMS

System control: AVCS (Angular Vector Control System).

Dual-gain function: two operational modes can be selected through the transmitter; AVCS mode and Rate

mode.

Compatible with all digital servos, including 1520µS, 760µS and 960µS.

Technical Parameters

1. Operating voltage: DC 3.0V ~ 9.0V

2. Operating current: 20mA (at 5.0V)

3. Operating temperature: -15⁰C ~ 60⁰C

4. Dimensions: 21 × 21 × 10mm

5. Weight: 8.0g (including connectors and wires)

Status LED

Page 1 of 4

GA-250 Micro Gyro Manual

ASSAN Electronic Control Technology Co., Ltd

GA-250 Micro Gyro Manual

Gain Channel Connector (Red)

Rudder Channel Connector (Black)

Gain Channel Plug(Red)

Tail Servo Connector

http://www.assan.cn

v3.2

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Page 1 The GA-250 is a high performance advanced AVCS/MEMS gyro, especially designed and optimized for R/C helicopters. It is very small in size and very light weight. It is easy to set up and compatible with a wide range of (digital only) servos.
Page 2 Servo Type Selection The GA-250 was designed to work with all modern digital tail servos. DO NOT use analogue tail servos!! There are different types of digital servos and incorrect settings may damage your servo and possibly loss of tail control during flight.
Page 3 (ending in AVCS) until your gyro’s status light gives a combination of blue and red flashes, then release your rudder stick to neutral. You are now in the gyro direction reversing configuration mode. Page 3 of 4 ASSAN Electronic Control Technology Co., Ltd http://www.assan.cn...
Page 4 Note 2: In normal operational mode, if you need to recalibrate the gyro at any time, you can toggle the gain switch three or more times in quick succession (ending in AVCS). Have Fun! Page 4 of 4 ASSAN Electronic Control Technology Co., Ltd http://www.assan.cn...