AUTOFLOW
AUTOFLOW
Description
The liquid turbine meters of the series VISION are for the exact measuring of small quantities of liquids. The actual flow, as well as the already passed flow, can be measured.
Principle
Flow causes the bladed rotor of the VISION to turn alan angular velocity directly proportional to the velocity of the fluid measured. As the blades pass beneath a magnetic pickup coil, a frequency signals generaled. Each pulse is equivalent to a discrete volume of fluid. The frequency puise is directly proportional to the rotor angular velocity and the flow rate. The waves are readily transmitted to local or remote electrical instrumentation.
Advantages
The large number of pulses gives a good resolution. As the mass of the turbine are very small the response time is very short. It is not necessary to install a straight length of pipeline at the upstream side. The simple mechanical construction of the sensor VISION guarantees a long lifespan without any loss of accuracy. Pressure pulses do not affect the measuring system.
Features
- low cost
- Flow range : 0.1 - 2.5L/min (Vision 1000)
0.5 - 35L/min (Vision 2000)
- length 45mm, weight 10gr (Vision 1000)
- length 55mm, weight 15 gr (Vision 2000)
- high repeatability
- digital output
- temperature range -20 to +100℃
- operating pressure 25 bar
| Flow range l/min | Pulses/I | Frequency/Hz | DN | Air split/mm | Series |
| 0.1 - 2.5 | 22,000 | 36.6 - 916.6 | 5 | 0.1 | Vision 1000 |
| 0.5 - 7.5 | 4600 | 38 - 575 | 8 | 0.15 | Vision 2000 |
| 1 - 10 | 3300 | 55 -550 | 6 | 0.15 | |
| 1 - 15 | 2200 | 37 - 550 | 8 | 0.15 | |
| 1.5 - 25 | 1000 | 25 - 416 | 8 | 0.4 | |
| 2 - 35 | 700 | 23 - 40B | 8 | 0.4 |
Specifications
| flow rates | see selection table | |
| flow medium | liquids without particles, we recommend filtration with approx. 20 to 40 micros | |
| pressure rating | 25 bar (200bar bursting pressure | |
| end connection | G 3/8" or NPT 3/8"(2000sensor) G1/4 or NPT 1/4" (1000sensor) | |
| temperature range | -20 ~ +100℃ | |
| accuracy | +/- 3% of reading | |
| repeatability | better than 0.5% | |
| viscosity | up to approx 15cSt | |
| pressure drop | refer to table on page 3 | |
| el. connection | AMP Faston 2.8/6.3 mm x 0.8mm or 1m cable 3xAWG 24 with free cable end or connector bases with 3 flat connectors 2.8 x 0.5 filled for electrical connector 60EN 529 | |
| power supply | 5 - 24 VDC | |
| power consumption | approx. 8mA | |
| output signal | frequency open collector (NPN sinking) | |
| output current | max. 20mA | |
| materials body |
Grilamid turbine bearings |
TR55 (PA12) PA12 Femit PTFE / Graphite |
| approval | all parts that are touching the medium possess the approval for cold- and warm water | |
| dimension of sealing (Vision1000) | inside Ø7mm, outside Ø13mm thickness 2mm, hardness approx, 70Sh A | |
| dimension of sealing (Vision 2000) | inside Ø8.5mm, outside Ø14.5mm thickness 2mm, hardness approx, 70Sh A | |
For orders over 10,000pieces, we can respond to customers wishes regarding the connection of the medium and the electrical connections.
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