266CRH / 266CRT, 266CSH / 266CST MULTIVARIABLE PRESSURE TRANSMITTER  |  OI/266CXX/MODBUS-EN REV. A  67 
 
 
 
 
Available units 
For certain parameters, it is possible to choose among the 
following units. 
 
Note 
The ‘Code’ column indicates the value to which the 
corresponding parameter must be set, for exmaple using the 
communications interface. 
 
Table 1: Pressure units 
Selection Code Description 
inH2O (68°F)  1  Inches of water column at 68 °F 
inHg  2  Inches of mercury 
ftH2O  3  Feet of water column 
mmH2O (68°F)  4  Millimeters of water column at 68 °F 
mmHg 5 Millimeters of Mercury 
psi  6  Pounds per square inch 
bar 7 Bar 
mbar 8 Millibar 
g/cm2  9  Grams per square centimeter 
kg/cm2  10  Kilograms per square centimeter 
Pa 11 Pascal 
kPa 12 Kilopascal 
Torr 13 Torr 
atm 14 Atmospheres 
inH2O (60°F)  145  Inches of water column at 60 °F 
MPa 237 Megapascal 
inH2O (4°C)  238  Inches of water column at 4 °C 
mmH2O (4°C)  239  Millimeters of water column at 4 °C 
 
Table 2: Temperature units 
Selection Code Description 
°C 32 Degrees Celsius 
°F 33 Degrees Fahrenheit 
°R 34 Degrees Rankine 
K 35 Kelvin 
 
 
 
Table 3: Units for the mass flow 
Selection Code  Description 
g/s  70  Grams per Second 
g/min 71  Grams per Minute 
g/h  72  Grams per Hour 
kg/s  73  Kilograms per Second 
kg/min  74  Kilograms per Minute 
kg/h  75  Kilograms per Hour 
kg/d  76  Kilograms per Day 
t/min  77  Tons per Minute 
t/h  78  Tons per Hour 
t/d  79  Tons per Day 
lb/s  80  Pounds per Second 
lb/min  81  Pounds per Minute 
lb/h  82  Pounds per Hour 
lb/d  83  Pounds per Day 
STon/min  84  Short tons per Minute 
STon/h  85  Short tons per Hour 
STon/d  86  Short tons per Day 
LTon/h  87  Long tons per Hour 
LTon/d  88  Long tons per Day 
 
Table 4: Units for the volume flow 
Selection Code  Description 
ft
3
/min  15  Cubic Feet per Minute 
gal/min  16  US Gallons per Minute 
L/min 17  Liters per Minute 
Impgal/min  18  UK Gallons per Minute 
m
3
/h  19  Cubic Meters per Hour 
gal/s  22  US Gallons per Second 
Mgal/d  23  US Millon Gallons per Day 
L/s 24  Liters per Second 
ML/d  25  Million Liters per Day 
ft
3
/s  26  Cubic Feet per Second 
ft
3
/d  27  Cubic Feet per Day 
m
3
/s  28  Cubic Meters per Second 
m
3
/d  29  Cubic Meters per Day 
ImpGal/h  30  UK Gallons per Hour 
ImpGal/d  31  UK Gallons per Day 
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