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SMV 3000 Transmitter User’s Manual 1/99166
A.6 Operation Notes, Continued
PV Engineering Unit
Conversions
You can initiate manual engineering unit conversions for PV value used in
displays by substituting appropriate converted values for PVEUHI and
PVEULO on page one of the Detail display. Use the Y = mX+B formula
explained in Section 4 of the PM/APM Smartline Integration Manual to
calculate the desired PVEUHI and PVEULO values. LRV and URV are
used as “X” in the formula. Tables A-9 through A-12 list conversion
values that can be used for “m” and “B” in the equation to calculate a
desired PV value.
ATTENTION
As a shortcut, you can use the “built-in” conversion available for PV1,
PV2, and PV3 by changing the STI_EU parameter and using the values
displayed.
Table A-9 Conversion Values for PV1 and PV2 Pressures
Unit m B
inH2O@39 °F
1.0 0.0
inH2O@68 °F
1.001784985 0.0
mmHg@0 °C
1.8682681 0.0
PSI
0.03612629 0.0
KPa
0.249082 0.0
MPa
0.000249082 0.0
mBAR
2.49082 0.0
BAR
0.00249082 0.0
g/cm2
2.539929 0.0
Kg/cm2
0.002539929 0.0
inHg@32 °F
0.07355387 0.0
mmH2O@4 °C
25.4 0.0
mH2O@4 °C
0.0254 0.0
ATM
0.00245824582 0.0
inH2O@60 °F
1.000972512 0.0
Table A-10 Conversion Values for PV3 Temperature
Unit m B
°C
1.0 0.0
°F
1.8 32.0
K
1.0 273.14844
°R
1.8 491.67188