Siemens HydroRanger 200 Instruction Manual download pdf (Page 80)

Page 66 HydroRanger 200 – INSTRUCTION MANUAL 7ML19981FC01

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Open Channel Monitoring

Open Channel Monitoring (OCM)

An OCM installation is defined one of three ways, based on the Primary Measuring

Device (PMD):

1. Dimensional (P600 = 2,3,6,7)

For some common weir and flume types. PMD dimensions (P602) are entered directly.

• BS-3680 / ISO 1438/1 Thin plate V notch weir on page 68

• BS-3680 / ISO 4359 Rectangular Flume on page 69

• Palmer Bowlus Flume on page 70

• H Flume on page 71

2. Exponential (P600 = 1)

For most other weir and flume types. PMD exponents provided by the manufacturer are

entered. Flow is calculated using the exponent (P601) and the maximum values (P603 and

P604).

• Standard Weirs on page 72

• Parshall Flume on page 73

• Leoplod Lagco on page 74

• Cut Throat Flume on page 75

3. Universal (P600 = 4,5)

For all other PMDs, the head-to-flow curve can be plotted based on known breakpoints,

usually supplied by the PMD manufacturer.

• Typical Flow Characterization on page 76

• Example Flumes on page 77

• Example Weirs on page 77

Common Parameters

These Quick Start parameters are required for all installations.

Parameter Index Value Description

P001 G 6 Operation = OCM

P002 G 1 Material = liquid

P003 G 2 Max. Process Speed = medium

P004 G 102 Transducer = XPS-10

P005 G 1 Units = meters

P006 G 1.8 Empty = 1.8m

P007 G 1.0 Span = 1.4m

P801 G 0.8 Range Extension to avoid LOE

1 2 ... 75 76 77 78 79 80 81 82 83 84 85 ... 255 256

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Siemens HydroRanger 200 Instruction Manual Page 80