Frequency Output, 1/4" to 1.0" Pipe Sizes, Rugged Molded PPA Construction
DESCRIPTION
The DN series vortex flow transmitters are designed with equipment manufacturers in mind and are an excellent economical choice for system flow monitoring and control.
The DN series vortex flow transmitters are designed with equipment manufacturers in mind and are an excellent economical choice for system flow monitoring and control.
The transmitters work on the principle of Kármáns vortex trail, named after Theodore von Kármán's mathematical description of the phenomenon. Vortex shedding flowmeters present the flow in a pipe with an obstruction/bluff in the flowmeter body. As velocity increases, alternating vortices are formed on each side of the bluff body and travel downstream.
The DN series utilize piezoelectric sensors embedded in a ETFE vane located downstream of the bluff to detect the generated vortices. The frequency measured represents the flow velocity. A flow factor is provided to convert frequency to volume flow rate for each model size.
The minimum measured flow rate is dependent on the viscosity of the fluid.
Versions with a 1000 Ohm RTD temperature sensor built-in to the bluff are available.
FEATURES
Low cost product with high levels of accuracy
Temperature in-sensitive measuring principle
Excellent media resistance (measuring element not in contact with the media)
Minimal pressure loss
Measuring element not sensitive to debris
Direct temperature measurement in the medium
Frequency Output, 1/4" to 1.0" Pipe Sizes, Rugged Molded PPA Construction
DESCRIPTION
The DN series vortex flow transmitters are designed with equipment manufacturers in mind and are an excellent economical choice for system flow monitoring and control.
The DN series vortex flow transmitters are designed with equipment manufacturers in mind and are an excellent economical choice for system flow monitoring and control.
The transmitters work on the principle of Kármáns vortex trail, named after Theodore von Kármán's mathematical description of the phenomenon. Vortex shedding flowmeters present the flow in a pipe with an obstruction/bluff in the flowmeter body. As velocity increases, alternating vortices are formed on each side of the bluff body and travel downstream.
The DN series utilize piezoelectric sensors embedded in a ETFE vane located downstream of the bluff to detect the generated vortices. The frequency measured represents the flow velocity. A flow factor is provided to convert frequency to volume flow rate for each model size.
The minimum measured flow rate is dependent on the viscosity of the fluid.
Versions with a 1000 Ohm RTD temperature sensor built-in to the bluff are available.
FEATURES
- Low cost product with high levels of accuracy
- Temperature in-sensitive measuring principle
- Excellent media resistance (measuring element not in contact with the media)
- Minimal pressure loss
- Measuring element not sensitive to debris
- Direct temperature measurement in the medium
