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Help CenterEndress Hauser F1F-M Ultrasonic Flow Meter 0.03-120m/s Bidirectional Gas Velocity Measurement 20bar Pressure Resistance
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Product Description
The Type 235 flow sensor is based on the Karman vortex street principle. It differs from the Type 200 in the same series in that it features a brass housing. Vortex flow sensors have no moving parts and are therefore resistant to contamination. In addition, they feature low pressure drop and high measurement accuracy. Models with integrated temperature measurement are available as an option.
| Item | Specification |
|---|---|
| Origin | Switzerland |
| Flow Measuring Principle | Vortex shedding |
| Flow Measuring Range | 0.9 ~ 15 L/min |
| Nominal Diameter | DN 8 |
| Accuracy (Water, ＜50% FS) | ＜1 % FS |
| Accuracy (Water, ＞50% FS) | ＜2 % of measured value |
| Startup Delay (Sampling Mode) | ＜100 ms, instant response |
| Adjustable Response Time | 5 ~ 500 ms |
| General Startup Delay | ＜2 s |
| Sensor Weight | 160 g |
| Temperature Measuring Principle | PT1000 (Class B, DIN EN 60751) |
| Temperature Measuring Range | -40 ~ 125 ℃ |
| Temperature Repeatability | ± 0.5 % |
| Sensor Type | Flow sensor, optional temperature measurement function |
| Applicable Medium | Heated water with standard additives, drinking water |
| Operating Medium Temperature | -15 ~ 125 ℃ (non-freezing fluid) |
| Max Test Pressure @ 40℃ Medium | 18 bar |
| Cavitation Index | ＞5.5 |
| Max System Pressure @ 90℃ Medium | 7 bar |
| Min System Pressure | 1 bar |
| Ambient Operating Temperature | -15 ~ 85 ℃ |
| Storage Temperature | -30 ~ 85 ℃ |
| Wetted Impeller Material | ETFE |
| Wetted Housing Material | PA6T/6I (40% glass fiber reinforced) |
| Sealing Material | EPDM |
| Electrical Connector | RAST 2.5 2×3-pin plug |
| Protection Class | IP 65 |
| Supply Voltage | 0 ~ 5 VDC |
| Output Type | Analog output |
| Power Consumption | ＜5 mA |
| Protection Function | Short circuit protection & reverse polarity protection |
| PT1000 Self-heating Effect | 1 K/mW |
| Cable Resistance Influence to Plug | 0.8 Ω |
| Pipe Connection | Brass fitting, external thread G ½ |
Performance Features
High-precision OEM product
Temperature-independent measurement principle
High media compatibility (measuring element does not come into contact with the medium)
Wide operating temperature range
Low pressure drop
Contamination-resistant measuring element
Optional PT1000 or NTC for direct temperature measurement in the medium
Compliant with ACS and WRAS drinking water certification standards
Product Applications
District heating, industrial automation
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