KROHNE Summit 8800 Vol 2 User Manual

Page 78

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08/2013 - MA SUMMIT 8800 Vol2 R02 en

SUMMIT 8800

STREAM CONFIGURATION

Primary measurement

This option defines whether the serial link or the pulses will be used

as a primary measurement. The other will be used when the primary

fails. Off course only one of them can be used also: the other will not

be connected..

Frequency type

API 5.5 level B to E.

Frequency scaling

The K-factor or impuls factor for the HF pulse. The total number of

pulses corresponding to one unit of flow.

(N-)Acc deviation limit & time

A deviation alarm on the primary and secondary flow inputs from

the UFM. This comparison can be used to set an accountable alarms

or non-accountable warning if the difference exceeds a preset

percentage during a given period of time.

Ultrasonic minimum frequency

Low cut-off frequency. This is frequency below which the flow will be

considered 0.

Ultrasonic pulse ratio

Ratio between the two frequency inputs. For one input set to 0. For

two identical frequency inputs set to 1

Preset K Factor LF

The K-factor or impuls factor for the LF pulse. The total number of

pulses corresponding to one unit of flow. (Gas only).

6 .2 .2 .3 Pulse Input API 5 .5 Level A

Define the preference for serial or pulse input and the pulse input setting for API 5.5 level A if

used

Figure 70 Ultrasonic pulse input section for liquid API 5 .5 level A