
Date: 8/1/2019
Meter Configuration............................................................................................................................ 2-4
Security Code .................................................................................................................................... 2-33
PID OPERATING................................................................................................................................. 2-34
CALIBRATION.................................................................................................................................... 2-34
Calibrate Mode..................................................................................................................................2-34
Parameter Overrides:.............................................................................................................................2-34
Temperature Override .......................................................................................................................2-34
Pressure Override .............................................................................................................................. 2-34
DP Override.......................................................................................................................................2-34
API/SG/Density Override.................................................................................................................. 2-34
Orifice ID Override ...........................................................................................................................2-34
Current Batch Preset..........................................................................................................................2-34
Equilibrium Pressure Override .......................................................................................................... 2-35
Alpha T E-6 Override........................................................................................................................2-35
Wedge Fa Override and Wedge Kd2 Override..................................................................................2-35
Venturi C Override............................................................................................................................2-35
End Batch ..........................................................................................................................................2-35
SYSTEM ...........................................................................................................................................2-35
HISTORICAL DATA ...........................................................................................................................2-36
VIEW, CAPTURE AND STORE ..................................................................................................... 2-36
Viewing previously captured reports.................................................................................................2-36
Exporting or Printing Reports............................................................................................................ 2-37
SCHEDULED AUTO POLLING ..................................................................................................... 2-38
CHAPTER 3: FLOW EQUATIONS........................................................................................................... 3-1
AGA3 ......................................................................................................................................................3-1
API 14.3................................................................................................................................................... 3-2
Wedge......................................................................................................................................................3-3
Venturi.....................................................................................................................................................3-4
AGA7 ......................................................................................................................................................3-5
DENSITY EQUATIONS........................................................................................................................ 3-6
Sarasota Density GM/CC ....................................................................................................................3-6
UGC Density GM/CC .........................................................................................................................3-7
Solartron Density GM/CC................................................................................................................... 3-8
Propylene Density ...............................................................................................................................3-9
Ethylene Density ................................................................................................................................. 3-9
NBS 1045 ............................................................................................................................................3-9
NIST14................................................................................................................................................3-9
DENSITY EQUATIONS (Without Live Densitometer)....................................................................... 3-10
CHAPTER 4: MODBUS DATA.................................................................................................................4-1
MODBUS PROTOCOL.......................................................................................................................... 4-1
TRANSMISSION MODE...................................................................................................................4-1
ASCII FRAMING ............................................................................................................................... 4-1
RTU FRAMING..................................................................................................................................4-1
FUNCTION CODE.............................................................................................................................4-2
ERROR CHECK ................................................................................................................................. 4-2
EXCEPTION RESPONSE.................................................................................................................. 4-2
BROADCAST COMMAND...............................................................................................................4-2
MODBUS EXAMPLES...................................................................................................................... 4-3
FUNCTION CODE 03 (Read Single or Multiple Register Points).....................................................4-3
ASCII MODE - Read Address 3076 ...................................................................................................4-3
MODBUS ADDRESS TABLE –16 BITS .............................................................................................4-5
MODBUS ADDRESS TABLE –32 BITS ...........................................................................................4-12
Last Batch/Daily Data Area...............................................................................................................4-15
Alarms and Status Codes................................................................................................................... 4-40
Previous Audit Data Area..................................................................................................................4-41
CURRENT ALARM STATUS.........................................................................................................4-44