Weber Sensors 4120.41MS141 Flow-Captor Flow-Monitor in Rugged Stainless Steel Housing for Liquids with Binder-Plug
- Part #:4120.41MS141
- Model #:Flow-Captor
- Condition:Brand New

The flow-captor is ideally suited for use in automation processes or other industrial applications where liquid media must be monitored. The sensor operates according to the calorimetric measuring principle, fully electronically and without mechanically moving parts. The flow-captor records the flow velocity of the medium and converts it into an electrical signal.
Features:
- Precise switching flow monitor with relay output
- Version with BINDER coupling (S141)
- High switching accuracy even with slower flows
- Separate setting of set-point and range
- Display of the flow and the adjusted set-point via LED chain
- LED for switching status
- Robust stainless steel design (special potting)
- ISO 9001:2015
- Specification Sheet
- Manuals/Tutorials
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| Medium | water-based |
| Sensor Data | |
| Measuring range | 0 - 20 cm/s to 0 - 300 cm/s, continuously adjustable |
| Set-point range | approx. 15 % - 90 % of measuring range setting |
| Medium temperature | - 20 °C to + 80 °C |
| Ambient temperature | - 20 °C to + 70 °C |
| Pressure | max. 100 bar (1450 PSI) |
| Response time | 2 sec. - 10 sec. depending on range setting |
| Linearity deviation | < 5 % |
| Repeatability | < 2 % |
| Hysteresis | approx. 10 % |
| Temperature drift | < 0.3 % K |
| Mechanical Data | |
| Protection class | IP67 |
| Material: Housing | stainless steel AISI 303 |
| Material sensor head | stainless steel AISI 303 |
| Thread | G 1/2" A |
| Electrical connection | 6-pin BINDER coupling |
| Electrical Data | |
| Operating voltage | 18 to 30 VDC, incl. residual ripple |
| Switching current | ≤ 5 A (120 VAC), ≤ 3A (250 VAC), max. 5A 150W at VDC |
| Power consumption | approx. 1 W |
| Circuit protection | reverse polarity, short circuit and overload |
| Ready to operate | approx. 10 sec. after applying the operating voltage |
| Electrical output | |
| Switching condition with flow < switching point | currentless, relay not activated |
| LED | off |
| Switching condition with flow > switching point | energized, relay activated |
| LED | on |
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