The G040-122 is a low cost valve monitor that visually shows the operating condition of most Moog electrical feedback (efb) servo or proportional valves. It provides LED status indication of the valve command, spool position, drive error and power.

The valve monitor can be used as a first level fault finding tool by being connected temporarily or permanently to the valve. The monitor is fitted ‘inline’ between the valve and electrical connector; i.e. it connects to the existing electrical connector with no external connections required.

The monitor LED indicators provide: Command – Spool position command input to the valve. Spool – Actual spool position signal from the valve. (Cmd) - (Spool) – Difference between command and actual spool signals. Error – Alarm for excessive difference between command and actual spool signals. Power – Supply voltage is above the required minimum. FEATURES ã

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