U
SER
’
S
G
UIDE
— 15
VELOCITY PRESSURE / FPM KEYS
Ç 0
VP
ß ©
FPM
— Converts entry to Velocity (Feet per
Minute - FPM), Velocity Pressure, Metric Velocity
(MPS) and Metric Velocity Pressure (kPA).
Press
Result
1
Calculates Velocity (FPM)
– assumes
entry is Velocity Pressure
2
Calculates Velocity Pressure
– assumes
entry is Velocity (FPM)
3
Calculates Metric Velocity (MPS)
–
assumes entry is kPA
4
Calculates Metric Velocity Pressure
(kPA)
– assumes entry is MPS
See
page 46
for examples.
CIRCULAR / ARC FUNCTION KEYS
The Circle key helps you quickly solve Circular Area, Volume or Arc
problems.
C
Circle
— Displays and calculates the following val-
ues, given an entered Circle Diameter* or Radius:
• Diameter
• Circumference
• Circle Area
*To enter a Diameter (e.g., ten feet), press
1 0 f C
. To
enter a radius, see below.
Ç p
Segment Radius
— Enters or calculates the Circle
Radius (e.g.,
5 f Ç p
). Used to calculate
Diameter, Circumference and Circle Area (see
above).
Ç C
Arc Length or Degree of Arc
— A multi-function
key that enters or calculates Arc Length or Degree
of Arc, and further solves for additional Circular/Arc
values, including Arched Rake-Walls (based on the
stored on-center), listed on next page.
(Cont’d)
