Description
Weber Sensors, 4120.12M, Flow-Captor Switch, PNP N.C. Opener Current-Carrying, Water-Based
Features:
- Precise switching sensor for water- and oil-based media up to 100 bar
- High accuracy even under low flow condition
- Separate adjustment for range and set-point
- Analog display of actual flow and display of the adjusted set-point
- LED-display of output status
- ISO 9001 : 2008
The flow-captor 412x.1xM is a further development with an additional pressure resistance. This highly accurate metering – flow switch is used in every industry where flow monitoring – measuring and displaying liquid media is of importance. With this flow-captor it is possible to set an exact flow set-point and simultaneously measure the flow speed, even up to very low flow conditions.
Sensor head:
The sensor head is constructed of only one piece of electro polished stainless steel and without any sensor element intruding into the medium. Easy installation by means of T-piece or welded fitting. For aggressive media special materials as Titanium, Hastelloy, Monel or a special sensor coating can be offered. The electronics inside is completely epoxy resin encapsulated.
Connection diagram:
| Medium | water-based media |
| Measuring range | 0-20 cm/s to 0-300 cm/s, continuously adjust. |
| Set-point range | approx. 15%-90% of range setting |
| Medium temperature | -20 °C to +80 °C |
| Ambient temperature | -20 °C to +70 °C |
| Pressure | Maximum 100 bar (1450 PSI) |
| Response time | 2 s – 10 s depending on range setting |
| Linearity deviation | < 5% |
| Repeatability tolerance | < 2% |
| Hysteresis | ca. 10% |
| Temperature drift | < 0,3% K |
| Protection class | IP 67 |
| Electrical connection | M12X1, 4 pin |
| Body dimensions | D 66 x H 99/59 |
| Thread | G 1/2″ BSP, alt. 1/2″ – 14 NPT |
| Operating voltage | 18 to 30 VDC, incl. residual ripple |
| Current consumption | Maximum 150 mA (pulsed) |
| Power consumption | approx. 1 W |
| Switching current | ≤ 400 mA |
| Circuit protection | reverse polarity, short circuit and overload |
| Voltage drop | < 2,5 V at Maximum load |
| Initial operation | approx. 10 s after connection of power |
| Electrical output without flow | PNP n.c. (opener) current-carrying |
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