Automated Checksum Verification (ACV)

As an extended auditing feature, the flow computer

provides an option to perform online integrity checks

by generating firmware and configuration checksums.

The checksum is a 32-bit CRC number which is

routinely calculated and compared against the last

verified checksum. If a newly calculated checksum

does not match with the last verified checksum, the

system generates a checksum error and the flow

computer goes into an unverified state.

The flow computer supports extensive alarming

capability to enhance operational efficiency and

improve the audit trail. Alarms are pre-allocated to

meter runs and stations for standard values such as

pressure, temperature, differential pressure, or

frequency as well as meter run and station flow rates.

In addition to these standard alarms, the FB2200

provides a number of user alarms that you can assign

to other database parameters simply by “filling in the

blanks” in user alarm templates in the FBxConnect

configuration tool. Storage is provided for the most

recent 1000 alarms in the alarm log.