7ML19985FC03
HydroRanger 200 – INSTRUCTION MANUAL
Page 71
m
mmmm
Open Channel Monit
oring
6 Relay Model
Open Channel Monitoring (OCM)
[6 relay model]
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 73
•
BS-3680 / ISO 4359 Rectangular Flume on page 74
•
Palmer Bowlus Flume on page 75
•
H Flume on page 76
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 77
•
Parshall Flume on page 78
•
Leoplod Lagco on page 79
•
Cut Throat Flume on page 80
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 81
•
Example Flumes on page 82
•
Example Weirs on page 82
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
Содержание HydroRanger 200
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