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In LPG gantry loading system at our refinery, flow rate based on pulse/unit (K FACTOR) over frequency O/P from E&H MFM (Promass 83) is communicated to Danload batch controller 6000. However following observations were noted:
1. If the pulse width is high like 50 ms, flow communicated to DANLOAD 6000 is incorrect despite right K factor. The pulse width when adjusted to 1ms, the flow communicated over frequency O/P from MFM to batch controller was accurate.
2. If K factor is chosen high like 100 pulse/unit, the resolution in flow communicated over frequency O/P is higher, however, when K factor is low like 10 then resolution is lower.
Any suitable explanations are most welcome.
1. If the pulse width is high like 50 ms, flow communicated to DANLOAD 6000 is incorrect despite right K factor. The pulse width when adjusted to 1ms, the flow communicated over frequency O/P from MFM to batch controller was accurate.
2. If K factor is chosen high like 100 pulse/unit, the resolution in flow communicated over frequency O/P is higher, however, when K factor is low like 10 then resolution is lower.
Any suitable explanations are most welcome.
