ABDT-1206A Propeller Type Currentmeter

Description
 ABDT-1206A Propeller Type Current Meter is used to measure hourly average flow velocity on
given points. Being light, impact and portablethis instrument applies to rivers, pipelines,ir
rigation and drainage channels, hydrological investigation, and runoff experiments.

Specification
 ABDT-1206A Propeller Type Current Meter is used to measure hourly average flow velocity on
given points. Being light, impact and portablethis instrument applies to rivers, pipelines,ir
rigation and drainage channels, hydrological investigation, and runoff experiments.
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1. The Rotary Diameter for Propeller: Ф60mm
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: 0.07～7m/s（Normal）
0.05～7m/s（Premium）
5. Operational Depth： 0.1～1.2m（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：0～35℃
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

Configuration

ABDT-1206A Propeller Type Current Meter is composed of a sensing part,

signal transitionmechanism, a tail fin, and a wading rod.

Instruction of counter is in last page of the text.

. Signal Transition Mechanism

Signal transition mechanism is to transform rotating number of propeller into electrical pulse

signals for counting by magnet—reed switch. Magnet is vertically installed at the tail of the

rotary axis, synchronous rotating with propeller. Reed switch is encapsulated in a water-proof

component fixed on the main body close to magnet. When propeller is driven by current, magnet and propeller are rotating synchronously. Every propeller’s rotation induces two

times of magnetization between magnet and reed switch. The rotating number is transformed

into signals and transmitted to the counter. Tail Fin（Additional）

Tail fin is used to level instrument in open channel during flow measurement. If in shallow, and slow-rate flow, or pipelines, instruments can be leveled by eyeballing, tail fins are not

necessary. CG16-1 Type Wading Rod（Additional）

Wading Rod is used to measure water depth, and fixed instrument at the given measuring

points. There is a signal transition socket on top of