Standard Vertical Speed Indicator, 0-4000 FPM.  The 7000 Series Vertical Speed Indicator is a precision instrument, which provides an accurate and reliable indication of rate of change of altitude.  Ascent is indicated by a clockwise rotation of the pointer from zero. Descent is indicated by a counter clockwise rotation. Zero is at the 9 o'clock position. Stops limit pointer movement at the end of the scale.  A zero adjustment screw is located on the face of the case at the seven o'clock position.