The FC1 (Frequency Clamp) is designed to condition the output of frequency based air flow meters such as those used on late model GM cars and Karman Vortex.  Under normal operating conditions, the FC1 outputs a signal that is identical to the flow signal present at its input.  When the frequency of the flow signal reaches the internally set clamp level, the FC1 maintains a constant output frequency at clamp level as the input frequency rises.  The FC1 is especially useful for forced induction conversions where a supercharger or turbocharger is fitted to an engine which is normally naturally aspirated.

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Description

The VC2 Voltage Clamp is designed to condition the output of voltage based air flow meters, MAP sensors and mass air flow sensors. It is often used to avoid fuel cut in forced induction applications. Under normal operating conditions, the VC2 outputs a signal that is identical to the signal present at its input. When the voltage of the flow signal reaches the internally set clamp level, the VC2 maintains a constant output voltage at the clamp level as the input voltage rises. The VC2 differs from the VC1 by offering a hard clamp function that is user adjustable. The hard clamp allows the output to track the input right up to the clamp voltage. Once in clamp, the VC2 maintains the clamp level with high accuracy regardless of overdrive.

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Description

The VC2-5 Voltage Clamp is designed to condition the output of sensors that operate from a 5V supply.  The VC2-5 is designed to operate from the same +5V supply and ground that powers the sensor it connects to.  Under normal operating conditions, the VC2-5 outputs a signal that is identical to the signal present at its input.  When the voltage of the flow signal reaches the internally set clamp level, the VC2-5 maintains a constant output voltage at the clamp level as the input voltage rises.