• For digital communications:
— Verify that the host has access to the required data.
— Verify that the host is writing to the correct register in memory, using the correct data type.
5.1.4 API tables supported by the API Referral application
The API tables listed here are supported by the API Referral application.
Table 5-1: API tables, process fluids, measurement units, and default reference values
Process fluid
API tables
(calculations)
(1)
Referred density
(API): unit and
range
Default
reference
temp
Default
reference
pressure
API standard
Referred
density
(2)
CTL or
CTPL
(3)(4)
Generalized crude
and JP4
5A 6A Unit: °API
Range: 0 to 100 °API
60 °F 0 psi (g) API MPMS 11.1
23A 24A Unit: SGU
Range: 0.6110 to
1.0760 SGU
60 °F 0 psi (g)
53A 54A Unit: kg/m
3
Range: 610 to
1075 kg/m³
15 °C 0 kPa (g)
Generalized products
(gasoline, jet fuel,
aviation fuel,
kerosene, heating
oils, fuel oils, diesel,
gas oil)
5B 6B Unit: °API
Range: 0 to 85 °API
60 °F 0 psi (g) API MPMS 11.1
23B 24B Unit: SGU
Range: 0.6535 to
1.0760 SGU
60 °F 0 psi (g)
53B 54B Unit: kg/m
3
Range: 653 to
1075 kg/m³
15 °C 0 kPa (g)
Liquids with a
constant density
base or known
thermal expansion
coefficient
(5)
N/A 6C Unit: °API 60 °F 0 psi (g) API MPMS 11.1
N/A 24C Unit: SGU 60 °F 0 psi (g)
N/A 54C Unit: kg/m³ 15 °C 0 kPa (g)
Lubricating oils
5D 6D Unit: °API
Range: −10 to
+40 °API
60 °F 0 psi (g) API MPMS 11.1
23D 24D Unit: SGU
Range: 0.8520 to
1.1640 SGU
60 °F 0 psi (g)
53D 54D Unit: kg/m³
Range: 825 to
1164 kg/m³
15 °C 0 kPa (g)
NGL (natural gas
liquids) and LPG
(liquid petroleum
gas)
23E 24E Unit: SGU 60 °F 0 psi (g) API MPMS 11.2.4
53E 54E Unit: kg/m³ 15 °C 0 psi (g)
59E 60E Unit: kg/m³ 20 °C 0 psi (g)
(1) Each API table represents a specialized equation defined by the American Petroleum Institute for a specific
combination of process fluid, line conditions, and output.
Configure process measurement applications Configuration and Use Manual
May2024 MS-00809-0200-1600
58 Emerson.com
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