Expert’s answer: Pulse or analog for custody transfer?

So you want to know which option is better – pulse or analog for custody transfer? We suggest pulse for your communication. That’s because it’ll give you more accuracy between the device and the flow computer. The computer will calculate the volume using the flow rate because the pulse from the device will depict only the flow rate most of the time.

pulse or analog for custody transfer
Endress+Hauser skids

Analog will provide only low accuracy in your application. In fact, any time you need high accuracy, you should avoid analog.

ROC flow computer from Emerson Process Management
ROC flow computer – Copyright Emerson Automation Solutions

HART communication will give you digital communication but it’s slower than pulse. That said, you can find applications using the HART between field devices and the flow computer. Still, we recommend sticking with standard setups for the application program interface.

Custody Metering System:

Other resources that might interest you

TOP 5 Coriolis flow meters on the market
Do you have questions about which flow meter to choose for your application? Don’t worry, we can help! Welcome to the TOP 5, where we grab the five best options on the market and roll through the stats on each so you can decide.

Coriolis mass flow reading variation
We have three Coriolis mass flow meters for ethylene, one on the main battery limit and the other two on different reactors. Their meters should match the main battery’s meter. Right now, we have one to two tons per kilogram of difference, with the battery limit showing less. Can anybody help me solve this issue?

Coriolis installation for gas application
We’re installing a new Coriolis in a gas application. So should we have inlet and outlet runs? What’s the correct installation for gas?

Which natural gas flow application should you choose?
We are working on a new project to natural gas flow measurement, it’s not a custody application, but an energy measurement to control the consumption of the natural gas! What’s the best alternative?

Recommended articles