Lake / Channel Propeller Type Current Meter 0.07-7m/s Measuring Range
Specifications:
1 The Rotary Diameter for Propeller: 60mm
2 The Hydraulic Thread Pitch for Propeller: H=120mm
3 Minimum Velocity: Vo≤0.06m/s(Normal)
Vo≤0.05m/s(Premium)
4 Measuring Range: 0.077m/s(Normal)
0.057m/s(Premium)
5 Operational Depth: 0.11.2m(Wading rod)
6 Accuracy:unbiased variance: m≤±1.2%(Normal)
m≤±1.0%(Premium)
V<0.2m/s:
Relative Error:σ≤±5%
7 Signal: two signals on every rotary
8 Operational Condition:035
9 Continuous Running Time:24h
10 Wading Rod (additional):
CG16-1 wading rod for open channel: 1600 mm in four sections;
Inner supporting type special wading rod for pipeline
Measuring principles:
This instrument is designed based on the theory of areas of open channel’s velocity.
After measuring the velocity, the flow can be get:Q=V·S(S is sectional area)
- Velocity measurement
When measuring velocity, the spin paddle type rotor flow meter will be pushed by waterpower.
The built-in signal apparatus produces RPM signal. The formula below can calculate velocity:
(K/b)N
V—————- C/a(m/s)
T
V: the average velocity (m/s)
B/K:the waterpower pitch of blades
a/C: velocity constant
T: lasting time(the unit is s)
N: the number of signals in T time
S: sectional area
Q: flow
K/b, C/a are constants
When measuring, you can setT and then measure N, so the velocity and flow can be
automatically calculated.
What Metlan bring you?
Metlan is specialized in the design,development,manufacturing,sales,installation,after-sale service in the industry of automation control and measuring instrument, we create a full set of commercial mode to provide customers high quality products of favorable prices, We can peroxide OEM product and technical services,enhance the competitiveness to bring a stable measurement environment to the end users.
Life Span
1. 5years under correct operation and maintenance.
2. Under correct operation, calibration formula should be checked after 1—2years.
Company team
