Siemens 200 P620 Low Flow Cutoff MR, P621 Auto Zero Head MR, Procedure, with head steady

P620 Low Flow Cutoff [MR 200]

Eliminates totalizer activity for flows at or below the cutoff value.

Primary Index		Single Point Model	Dual Point Model
	Global		Transducer
Values	Range: 0.000 to 9999
	Preset = 5.000 %, or equivalent units
Altered By	•	P005 Units
Related	•	P007 Span

Use this to enter the minimum head in units (P005) or as a percent of span.

P621 Auto Zero Head [MR 200]

Calibrates Zero Head (P605) based on actual head measurements.

Primary Index		Single Point Model		Dual Point Model
	Global			Transducer
Values	Range: -999 to 9999
	•	P006 Empty
Related	•	P062	Offset Reading
	•	P605 Zero Head
	•	P664	Temperature

Use this parameter when the reported head is consistently high or low by a fixed amount.

Before using this feature, verify the following parameters are correct:

•Empty (P006)

•Temperature (P664)

•Offset Reading (P062=0)

•Zero Head Offset (P605)

Procedure, with “head” steady

1.Press TRANSDUCER to display the calculated head.

2.Repeat step ONE at least FIVE times to verify repeatability.

3.Measure the actual head (with a tape measure or solid rule).

4.Enter the actual head value.

The deviation between the entered Empty (P006) value and the calibrated Empty value is stored in Offset Correction (P652). Alternatively, the Empty parameter (P006) can be corrected directly.

7ML19981FB06 MultiRanger 100/200 – INSTRUCTION MANUAL Page 173

Parameters