KROHNE Summit 8800 Vol 2 - Manual (Page 134)

134 www.krohne.com 08/2013 - MA SUMMIT 8800 Vol2 R02 en
SUMMIT 8800 PROVER 10
10. Prover
Proving is a function to determine and verify the accuracy of a flow meter used within a stream.
The methodology is to compare the volume or mass through the flow meter under test against
the prover’s known volume or mass (also referred to as ‘known traceable volume’).
The result of proving is the generation of a meter factor (MF) which is retro-applied to the flow
meter which corrects the flow at ambient operating conditions to traceable standards.
The SUMMIT 8800 flow computer can prove with the following prover systems for liquid:
• Uni-directional ball prover
• Bi-directional ball prover
• Piston prover / small volume prover / compact prover
• Master meter
For gas only one option is available:
• Master meter
The SUMMIT can be configured to be
• a prover computer which included streams in the same computer
• a dedicated prover computer wich connects to stream flow computers via a serial RS485
modbus link.
In a master meter configuration one of the streams is assigned to be the master which can test
production meters. The master meter itself can also be used as a production meter. In all cases,
the master meter must also be configured as any other stream flow meter.
Configuring the prover’s in- and outputs is done in the hardware section of the configuration
software tool. See volume 1 for details.
10 .1 Prover configuration
To be able to use the flow computer as a prover, the machine type must be defined as a gas or
liquid prover: