Open Channel Monitoring (OCM) [MR 200]

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 75

BS-3680 / ISO 4359 Rectangular Flume on page 76

Palmer Bowlus Flume on page 77

H Flume on page 78

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 79

Parshall Flume on page 80

Leoplod Lagco on page 81

Cut Throat Flume on page 82

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 83

Example Flumes on page 84

Example Weirs on page 84

Common Parameters

These Quick Start parameters are required for all installations.

Open Channel Monitoring MR 200

Parameter

P001

P002

P003

P004

P005

P006

P007

P801

Index Value

G6

G1

G2

G102

G1

G1.8

G1.0

G0.8

Description

 

Operation

= OCM

Material

= liquid

Max. Process Speed

= medium

Transducer

= XPS-10

Units

= meters

Empty

= 1.8m

Span

= 1.4m

Range Extension to avoid LOE

7ML19981FB06

MultiRanger 100/200 – INSTRUCTION MANUAL

Page 73

Page 83
Image 83
Siemens 200 Open Channel Monitoring OCM MR, Common Parameters, Dimensional P600 = 2,3,6,7, Exponential P600 =