Watlow EZ-ZONE RMH - Manual (Page 136)

Watlow EZ-ZONE ® RMH Module • 133 • Chapter 6 Features
Math
Square Root
Range Low Range H
igh
Pressure U
nits
Altitude U
nits
Scale Low Scale H
igh
Function
Filter Offset Filter
Math
Sample
and
Hold
Range Low Range H
igh
Pressure U
nits
Altitude U
nits
Scale Low Scale H
igh
Function
Filter Offset Filter
Math
Pressure
to
Altitude
Range Low Range H
igh
Pressure U
nits
Altitude U
nits
Scale Low Scale H
igh
Function
Filter Offset Filter
Math
Dewpoint
Range Low Range H
igh
Pressure U
nits
Altitude U
nits
Scale Low Scale H
igh
Function
Filter Offset Filter
Output Value = Filter [Convert Source A in Pressure to
Altitude + Offset]
Note:
If E = OFF, Filter [A + Offset]
If E = ON, = Filter [last value of A + Offset]
Display units follows Source A
Output Value
Output Value = Output Value =
Display units follows Source A Filter [SqrRoot A + Offset]
Output Value =
Source A is used for Calculated Pressure or CP ;
/ (17.27- (CP * B / 8.8618)) +32 + Offset]
Note:
For dewpoint, Source A is temperature (F) and Source B
is RH (%). Saturation pressure calculation is identical to
that used in wet/dry bulb. Result is in degrees F.
Filter [427.26 * (CP * B / 8.8618)
Source Function A
Source Instance A
Source Zone A
Source Error A
Source Function B
Source Instance B
Source Zone B
Source Error B
Source Function C
Source Instance C
Source Zone C
Source Error C
Source Function D
Source Instance D
Source Zone D
Source Error D
Source Function E
Source Instance E
Source Zone E
Source Error E
Source Function A
Source Instance A
Source Zone A
Source Error A
Source Function B
Source Instance B
Source Zone B
Source Error B
Source Function C
Source Instance C
Source Zone C
Source Error C
Source Function D
Source Instance D
Source Zone D
Source Error D
Source Function E
Source Instance E
Source Zone E
Source Error E
Source Function A
Source Instance A
Source Zone A
Source Error A
Source Function B
Source Instance B
Source Zone B
Source Error B
Source Function C
Source Instance C
Source Zone C
Source Error C
Source Function D
Source Instance D
Source Zone D
Source Error D
Source Function E
Source Instance E
Source Zone E
Source Error E
Source Function A
Source Instance A
Source Zone A
Source Error A
Source Function B
Source Instance B
Source Zone B
Source Error B
Source Function C
Source Instance C
Source Zone C
Source Error C
Source Function D
Source Instance D
Source Zone D
Source Error D
Source Function E
Source Instance E
Source Zone E
Source Error E
Source A Value
Source B Value
Source C Value
Source D Value
Source E Value
Output Value
Error
Source A Value
Source B Value
Source C Value
Source D Value
Source E Value
Output Value
Error
Source A Value
Source B Value
Source C Value
Source D Value
Source E Value
Output Value
Error
Source A Value
Source B Value
Source C Value
Source D Value
Source E Value
Output Value
Error
Pressure Altitude calculation is based on the
International Standard Atmosphere 1976. Source A is
a pressure signal and needs to be in PSI units for the cal-
culation. The calculation is accurate from sea level to
90,000 feet. It can be used beyond this range in both
directions, but with loss of accuracy. The standard is
based on an altitude of 0 feet (sea level) pressure of
14.6967 PSI and a temperature of 59 degrees F. Result
of calculation is in feet.