ABB COMMANDER 1900 Series, User Manual

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22
…5 ADVANCED CONFIGURATION LEVEL
5.2 Set Up Maths
In this Section, parameters in the lower display denoted
■
are Company Standard Settings. The instrument is dispatched
programmed with these settings.
• Maths
Page Header – Set Up Maths.
To advance to the
Set Up Timer
page press the switch.
Select Maths Function
Select the maths function or constant to be programmed:
CNSt–1
to
8
– Constant 1 to 8, arithmetic value used as multiplier/divisor or for
addition/ subtraction
bLK–1 to 4 – Maths block 1 to 4
NONE – No function selected
Constant Value
Set an arithmetic value, between –9999 and +9999.
Constant Decimal Point
Set the number of decimal places required for the constant value (0 to 3 places).
Maths Block Function
Select the maths block function required:
AVErGE
– Averages a continually varying input over a set period of time
LO–VAL – Holds minimum value measured on input variable
HI–VAL
– Holds maximum value measured on input variable
MASS–2 – Calculation of mass flow from differential pressure
MASS–1
– Calculation of mass flow from volume flow
rH – Relative Humidity calculation
Std
– Standard maths block
OFF – Maths function not selected
Standard maths block selected. Continued on next page.
Relative Humidity (RH) selected. Continued on page 24.
High or low value selected. Continued on page 24.
Mass flow 1 or 2 selected. Continued on page 25.
Average selected. Continued on page 26.
SELECt
MASS–2
NONE
CONSt
0
bLK–1
dECPt
MASS–1
SEt UP
MAtHS
CNSt–8
0
FUNCtN
LO–VAL
HI–VAL
OFF
bLKx–1
––
NONE
bLK–4
CNSt–1
rH
Std
AVErGE
bULb–1
INPUt
OFF
IPUt–A
INPUt
CNST–x BLK–x
––
––
––
––
STD
RH
HI–VAL
LO–VAL
MASS–2
MASS–1
AVERAGE