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Flow rate range | YLD-S is able to process signals from fluids with flow rates of up to 10m / s in both directions (bidirectional meter). |
Range dimension / lining material | PTFE DN10 - DN500 |
RUBBER DN65 - DN2000 | |
Sensor material | SS321 |
Housing material | aluminium |
Electrodes material | SS316L - Hastelloy C - Titanium - Tantalum - Platinum |
Measure range | <0,1m3/h - >110000m3/h |
Accuracy | ±0,5% standard; ±0,2% optional |
Repeatability | ±0,1% |
Fluid conductivity | >5pS/cm. |
Power supply | 85-265Vac, 24Vdc, 12Vdc. |
Consumption | 6W, max. 8W. |
Ambient Temperature Limits | |
Remote version operating temperature: | RUBBER -10 - +80°C; PTFE -40 - +150°C |
Compact version operating temperature: | RUBBER -10 - +80°C; PTFE -40 - +100°C |
Storage temperature: | -40+85°C |
Communication protocol | modbus or Hart (opt.) |
Output | |
4+20mA: | 0+750 ohm load. |
Frequency output: | 0,1+5000 Hz |
Pulse output: | 24Vdc pull up open collector or galvanically isolated open collector (opt.) |
Alarm output: | 2 relays, 3A 230Vac N.O. (not available for 12Vdc power supply version) |
Reverse Flow | Allow measure reverse flow. |
Output Testing | |
Current Source: | Transmitter can be commanded to supply a specified test current between 4.0 and 20.0 mA. |
Frequency Source: | Transmitter can be commanded to supply a specified test frequency between 0.1 and 5000 Hz |
Start-up Time | 0.5 seconds. |
Low Flow Cutoff | Adjustable between 0.0 and 9.9%Qmax. Below selected value, output is driven to the zero flow rate signal level. |
Humidity Limits | 0-100% RH to 150 °F (65 °C), not condensing. |
Damping | Adjustable between 0.1 and 99 seconds. |
Compact version IP rating | IP67 |
Remote version IP rating | sensor IP67 / IP68 (by request) - converter IP67 |
Anti-condensation filter | Anti-condensation filter installed on converter |






ROCKSENSOR (RKS) is specialized in the design and manufacture of industrial automation equipment, especially high accuracy pressure instruments. The products are used in industrial process control, gas and liquid analysis and flow measurement, RKS provide the whole solution of automation control and monitoringas well as professional technical services to the end users based on the qualified products.
As an industry leader in industrial automation, RKS is based in China and provides excellent products, technical services and support in the field of automation to customers all over the world. Products are exported to the United States, Germany, Italy, Russia, Netherlands, Switzerland, Brazil, Singapore, Malaysia, Indonesia, South Korea and other countries and regions





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