Professional Servo tester

Description

With the professional servo tester, digital and analogue servos can be tested and the width of the control pulses can be measured. Generates a control signal with logic “1” level pulses of 5.0 V with a repetition rate of 50 Hz (for analog servos) or 100 Hz (for digital servos). There are four buttons and a rotary knob to control the device. The program menu and the measured values are shown on a two-line LCD display. The Profi Servotester has seven basic operating modes:

• Manual setting of the servo position using a rotary knob (basic pulse width range elementary 1000-2000 µs / extended 500-2 500 µs). With this function you can test the linearity of the servo movement and its operation in general. You can also use it to test electronic speed controllers.
• Automatic cyclic testing of servo movement with the ability to set the number of cycles, travel range and overrun speed. This function is mainly used to test the longevity of the servo.
• Servo testing with button for switchable fixed positions 1,000, 1,500 and 2,000 µs. This function is mainly used to test and mechanically adjust the neutral position of the rudders and to test the accuracy of the servo return to the center position when moving from either side.
• Measurement of the dead band width of the servo. This function is primarily used to test the servo’s deadband and to determine its true resolution. This is also useful when you need multiple servos that respond exactly the same – typically e.g. B. 2-4 servos of a CCPM swashplate, multiple servos controlling the same or paired rudders on airplane models (especially in extreme 3D with large deflections).
• Measurement of servo movement speed at 60 degrees deflection.
• Automatic servo movement check with the ability to set the deflection range and overrun speed. This function is mainly used to test the continuity of the servo movement. It visualizes e.g. defects or operational wear of the resistive path of the feedback potentiometer (manifested by vibration or twitching), mechanical damage of gears (missing teeth), etc.

Measurement of the width of control pulses from an external source (e.g. receiver). This function is primarily used to test control pulses at the servo outputs of the receiver. You can measure the pulse width at a specific transmitter setting, and also test the control pulse width stability (when the servo vibrates, oscillates, or drifts without changing the position of the controls on the transmitter), etc.
The servo tester is supplied with power via the sockets on the right – either the JST-XH socket for connecting the balancer plug of the 2S LiPo battery (7.4 V) or the socket for connecting the battery or the power pack with a voltage of 7.4-12 V. The supply voltage for the servo at the output of the servo tester (SIGNAL / OUT) is stabilized at 5 V, regardless of the size of the supply voltage of the device.

The servo to be tested is connected to the SIGNAL / OUT socket on the left side. The control signal from an external source is fed into the same socket when measuring the pulse width in the “PW MODE” mode.

The package contains: professional servo tester, charging cable with socket and crocodile clips, servo cable, instructions.