The product
The instrument integrated with local display for instantaneous flow and cumulative totalized volume. The built-in battery can last for more than 6 years without external power supply. It also
has functions such as pulse frequency signal output and power loss data protection. It is suitable for total volume measurement and also availible for remote control by PC.
Working Principle
The FLS series spiral dual rotor flowmeter is a positive displacement volumetric high-precision flowmeter. A pair of spiral rotors together with the casing of the chamber, forming a known volume spiral cavity. Under the action of the liquid to be measured, the micro pressure difference between the inlet and outlet of the flowmeter drives two spiral rotors with the same geometric size and opposite rotation direction to mesh and rotate, continuously delivering liquid from the inlet to the outlet. By continuously dividing the fluid into equal volume units, direct measurement of the flow volume is achieved.
| Moel | Diameter | Apply | Flow range | Linearity | repeatability | |||
| L/min | m³/HR | |||||||
| min | max | min | max | |||||
| FLS-08 | DN-80 | Standard | 163 | 1609 | 10 | 97 | ±0.05% | 0.01% |
| extended | 114 | 2082 | 7 | 125 | ±0.15% | |||
| FLS-10 | DN-100 | Standard | 265 | 2650 | 16 | 160 | ±0.05% | 0.01% |
| extended | 125 | 3785 | 7 | 227 | ±0.15% | |||
| FLS-15 | DN-150 | Standard | 379 | 3785 | 23 | 227 | ±0.075% | 0.01% |
| extended | 151 | 4083 | 9 | 245 | ±0.15% | |||
Dimension
Model Selection
Technical Specification
| Nominal Pressure | 1.6/2.0/2.5 Mpa |
| Viscosity of liquid | (0.2~400)cSt |
| Temp. of liquid | -40°C~+70°C |
| IP protection | IP68 |
| Ex Proof Rating | Ex db IIC T6 Gb |
| Communication | ModBus RS485 |
| pulse output | |
| Voltage | 24VDC |
| Internal Battery | DC 3.6V |
| Electrical Entry | 2 * M20 * 1.5 |
| Material | carbon steel wac (casing) aluminiuma356 (rotors) |
Features:
High precision, long service life;
Double chamber structure design, unaffected by environmental temperature and pressure changes;
High range ratio: The range ratio can reach 1:20, and can also achieve relatively high measurement accuracy under extended flow.
Flexibility of installation: can be installed horizontally and vertically to meet on-site needs.
There is no contact, wear, vibration, or reciprocating components for the rotors with each other during rotation.
Data protection: with an internal battery for power supply. It can be used continuously for more than 6 years even wihtout outside power supply.
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