Watlow ez-zone, Rmh module, Chapter 6 features – Watlow EZ-ZONE RMH User Manual
Page 123
Watlow EZ-ZONE
®
RMH Module
•
120
•
Chapter 6 Features
Process Value
Maximum
Process Value
Square Root
Process Value
Vaisala RH
Compensation
Process Value
Pressure to
Altitude
Output Value = Filter [Convert Source A in Pressure to
Altitude + Offset]
Note: 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
calculation. The calculation is accurate from sea level to
90,000 feet. 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.
Output Value =
Display units follows Source A
Filter [Sqr Root A + Offset]
Source Function A
Source Instance 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 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 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 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 U
nits
Altitude U
nits
Barom
etric Pressure
Cross O
ver P
oint
Cross O
ver Band
Function
Filter Offset
Pressure U
nits
Pressure U
nits
Pressure U
nits
Altitude U
nits
Altitude U
nits
Altitude U
nits
Barom
etric Pressure
Barom
etric Pressure
Barom
etric Pressure
Cross O
ver P
oint
Cross O
ver P
oint
Cross O
ver P
oint
Cross O
ver Band
Cross O
ver Band
Cross O
ver Band
Function
Function
Function
Filter
Filter
Filter
Offset
Offset
Offset
Output Value = Filter [Maximum Value (A : B : C : D) +
Offset]
Display units follows Source with maximum value.
Output Value = Filter [Calculated RH compensated
for temperature + Offset].
Note: Source A is RH measured value from an
uncompensated Vaisala RH sensor. Source B is
temperature of the RH sensor in degrees F. The result
is a "corrected" RH measured value. This calculation
is effective over the temperature range of -75F to
350F.