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PSF20x is a programmable flow transmitter/monitor designed for use with low-viscose clear or translucent liquids, transmitting IR light. The operating principle is based on the liquid volume measurement through light-weight rotor, IR sensor, and sophisticated electronics converting flow rate into a standard linear output signal. An RS232 serial interface is also available. The material types used (PVDF, Vectra®, Viton®, EPDM, etc.) have a good thermal (up to 90 °C) resistance. A special variant with increased chemical resistance also extends the transmitter application. Other ranges except the standard 0.5…20 l/min flow range are available on request. PSF20x is equipped with a keyboard and a local 3-digit LED display for easy programming and flow monitoring and can be used both as a flow meter and transmitter suitable for water treatment and other applications.
| Аналогов изход | 0…10 V, 0…20 mA, 4…20 mA |
|---|---|
| Захранване | 15…32 VDC |
| Интерфейс | None, RS232 |
| Протокол | ASCII |
| Корпус | 110x92x60mm |
| Присъединяванe | G1/2" |
| Вход | Clear or translucent liquid transmitting IR light |
| Input | |
| Liquid type | clear or translucent liquid transmitting IR light (1) |
| Liquid viscosity | 1…1000 CST |
| Flow range | 0,5…20 l/min (2) |
| Measurement accuracy | |
| Accuracy | ± 1,00% |
| Interchangeability | 1,00% |
| Reproducibility | max. ± 0,30% |
| Analog output | |
| Current signal | 0(4)…20 mA, 3-wire |
| Voltage signal | 0…10 V |
| Output function | input signal info retransmission |
| Maximum output load | 750 Ω at 24V/20 mA |
| Interface | |
| Interface type | RS232 |
| Function | data transmission |
| Protocol | ASCII, free |
| Power supply | |
| Supply voltage | 15…32 VDC |
| Admissible variations | 4 Vp-p at 50 Hz |
| Consumption | max. 55 mA |
| Local indicator | |
| Digital display | 3 LED indicators, 14 mm |
| Display resolution | 0,1 |
| Display refresh | 1 s |
| Device calibration | through the keyboard |
| Accuracy | 0.2% from span |
| Temperature drift | 0.01% from span for 1 °C |
| Keyboard | 2 membrane keys |
| Operating conditions | |
| Process temperature | -20…90 °C |
| Ambient temperature | -10…65 °C |
| Storage temperature | -20…85 °C |
| Process pressure | max. 12 bar |
| Design and materials | PSF200 | PSF201 |
| Wetted parts | PVDF, POM, Viton®, Vectra®, SS 316 | PVDF, Viton®, Vectra®, SS 316 |
| Seals | EPDM, epoxy | PTFE |
| Case material | ABS/PC plastic | ABS/PC plastic |
| Mounting | free (3) | free (3) |
| Process connection | 2 x G1/2”, male | 2 x G3/8”, male |
| Wiring | 4-pin connector М12 (4) | 4-pin connector М12 (4) |
| Dimensions | 105x92x60 mm | 105x92x60 mm |
| Weight | max. 270 g | max. 250 g |
| Protection class (housing) | IP65 | IP65 |
(1) Liquid medium must be compatible with wetted part and seal materials!
(2) Other ranges are available on request.
(3) Radial, axial, and DIN-rail mounting accessories for 80x80x60 mm box can be ordered separately (see ‘Accessories’).
(4) On top of case ‘H’; on the right side of cases ‘V’
