How can I bypass the circuit to view the direct output from the turbine?

Bypass the Circuit to View Direct Turbine Output

Viewing the Raw Turbine Signal

If you need to view the direct output from the turbine without applying any programmable parameters, you can bypass the circuit on the SFT 881. This allows the device to act as a basic pre-amplifier for the turbine's signal.

Step-By-Step

How to Bypass the Circuit

  1. 1

    Locate Jumper J4

    Jumper J4 controls whether the turbine signal is processed through the device's programmable parameters.

    Locate Jumper J4
  2. 2

    Set J4 to the "A" Position

    Move Jumper J4 to the "A" position to bypass all programmable settings and view the direct, unprocessed output from the turbine.

    Set J4 to A position
  3. 3

    Set J4 to the "B" Position (Optional)

    If you want to return to using the programmable parameters, move Jumper J4 back to the "B" position. This will apply the configured settings to the turbine signal.

    Set J4 to B position
Use Case

When to Use Each Position

  • Position "A": Use this mode when you need the raw turbine signal, such as for testing or diagnostic purposes.
  • Position "B": Use this when the programmable parameters (like K-factor or pulse width) are needed for your application.