A variable area flowmeter has afloat in a conical cylinder (tapered tube) with a larger end in the upper section and a smaller end in the lower section. The float moves up and down according to the intensity of the flow, and the position at which the float balances indicate the flow rate. Not only simple flow meters that merely measure the flow rate but also flow meters with a valve for flow control, flow meters with a load pressure fluctuation type flow controller, flow meters with a supply pressure fluctuation type flow controller, and flow meters with an alarm switch are available. The RK1935 Series rotameter has been developed for compact alarm switches. It is a compact flowmeter for small equipment panel designs.
- Compact design
- Applicable to gas and liquid
- With alarm contact
- Low price
|Material||(S) SUS303, 304, Pyrex®, FKM, POM, glass
(B) Brass, Pyrex®, NBR, POM, glass
|Environmental temperature||10–35℃ (No condensation)|
|Fluid||Flow scale (L/MIN)||Alarm setting range (L/MIN)||Method of contact|
|H2O||0.1-1.0||0.3-0.7||(A) ON when the reading is
above the set value
(B) ON when the reading is
below the set value
|Contact capacity||100VAC/100VDC 10VAAC/10WDC|
- Models with valve: Differential pressure of 0.2 MPa is necessary for H2O 1 L/MIN.
- Models with valve: Differential pressure of 0.3 MPa is necessary for H2O 2 L/MIN.
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