Descripción del producto
KGF2 air flow sensor is mainly used for detecting various mine
tunnel, air outlet, fan wellhead sealing speed, air volume, in
order to ensure the safety of underground ventilation, supporting
the use of safety monitoring system of coal mine in the domestic
and foreign various.
Mine intrinsically safe explosion-proof form"ExibI"
Measuring range wind speed0.3m/s~15m/s
Basal area of less than 30m/s (can be arbitrarily
set)
Allowed error is less than ± 0.3m/s
Repeatability error reading the value +1%
Output signal 200Hz~1000Hz/5Hz~15Hz 4~20mA/1~5mA/RS485
bus
Working voltage is DC12V~18V
Working current is not more than 100mA
Transducer work frequency 140~150kHz
Outline dimention370mm×160mm×55mm
Quality 2kg
According to Kaman's theory into the vortex, vertical in the
infinite circle flow field in anonlinear resistance is infinite
(when resistance is called a vortex generating body), in a certain
range of Reynolds number (Red=200~5*10000), resistance downstream
will produce two row of alternating, rotating vortex column, and
the vortex rateproportional from velocity. Formula: f=St V/d: f---
St - constant vortex frequency (V---)wind speed d--- bluff body
diameter so, so long as the F, we can know that wind speed V, wind
speed measurement can be attributed to the measurement of vortex
frequency, and ultrasonic air flow sensor is the use of ultrasonic
wave principle to determine the vortex frequency of vortex
modulation.
País: |
China |
N º de Modelo: |
-
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Precio FOB: |
(Negociable)
Obtener el precio más reciente
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Lugar de origen: |
- |
Precio de pedido mínimo: |
- |
Cantidad de pedido mínimo: |
1 Set |
Detalle de embalaje: |
Standard Packing |
El tiempo de entrega: |
7 days after confirm the order |
Capacidad de suministro: |
5000 Set per Month |
Tipo de pago: |
PayPal, L/C, T/T |
Grupo de productos : |
Measurement & Analysis Instruments
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