Liquid Controls LCR 600 Setup & Op - Manual (Page 28)

28
calIbratIon Setup
compensation types and parameters
product vcf type
parameter
coefficient
range
ºcelsius/
ºfahrenheit tbase tmin
thold Tmax
General Linear Linear 0 to 0.003 ºC 15 -90 N/A +100
General Linear Linear 0 to 0.005
ºF
60 -130 N/A +212
LPG
USA
API Table 24
Specific Gravity
0.5 to 0.550
ºF
60 -50 -50 +140
LPG
Europe & Canada
API Table 54
Density
kg/L
0.5 to 0.600 ºC 15 -46 -46 +60
Refined Petro-
leum Products
Europe & Canada
API Table 54B
Density
kg/m3
653.0 to 1075.0 ºC 15 -50 -40 +95
Refined Petro-
leum Products
USA
API Table 6B API Gravity 0 to 85 ºF 60 -50 -40 +200
General
API Table 54C
Coefficient
0.000486 to
0.001674
ºC 15 -50 -40 +95
Lube Oil
Europe & Canada
API Table 54B
Density
kg/m3
800 to 1164 ºC 15 -50 -40 +95
Ammonia
Canada
NH3 N/A N/A ºC 15 -30 -30 +40
Single point or multi-point calibration
The LCR 600 provides two means of calibration, single point or multi-point calibration. A “point” corresponds to a
particular flow rate along the meter’s accuracy curve. Single point calibration adjusts one point along the accuracy
curve to zero percent error—typically at a flow rate representative of a normal delivery. Multi-point calibration zeroes
the percent error at multiple flow rates in order to flatten out the accuracy curve across the meter’s range of flow rates.
Multi-point calibration is ideal for applications in which deliveries are made at many different flow rates, while single
point calibration is appropriate for applications where a high flow rate is typical for most deliveries.
Single Point Calibration Accuracy Curve Multi-point Calibration Accuracy Curve
Single point and multi-point calibration accuracy curves