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SK80-F - KNX Fill Level Control Unit for Water and Oil Tanks, Without Sensor Head
✗
UL Listed
This product has not been certified by an NRTL (UL, ETL, CSA or
equivalent). Installation in USA projects may require a Field Evaluation
by a recognized laboratory. Consult your local AHJ before specifying.
~
Low Voltage · SELV
This device operates on a Safety Extra Low Voltage circuit — such as
the KNX 29V bus or a DALI 16V bus (NEC Class 2). When powered by an
NRTL-listed power supply, many AHJs accept non-listed SELV devices.
Verify with your local AHJ before specifying.
Regular price
$366.87 USD
Regular price
-17%
$440.24 USD
Sale price
$366.87 USD
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The SK80-F is a KNX fill-level control unit for water cisterns and oil tanks, supplied without a sensor head so the ultrasonic or hydrostatic probe can be chosen to suit the tank. It displays level, distance, volume and percentage locally and sends the values to KNX, with a potential-free switch output tied to upper and lower limits.
The unit draws all its power from the KNX bus, including the supply for the sensor head, and comes in a 120 x 90 x 50 mm (4.72 x 3.54 x 1.97 in) IP65 housing.
Key Features
- Fill level in m³, level, distance and %, resolution 1 mm (0.04 in); integrated display
- Sensor inputs 0-1 V, 0-5 V, 0-10 V, 4-20 mA and Modbus RTU RS485
- Supports ultrasonic heads (300 to 5000 mm (11.8 to 196.9 in)) and hydrostatic heads (0 to 5000 or 0 to 10,000 mm (0 to 393.7 in))
- Potential-free limit-value switch output (20 mA)
- Wall mount, grey plastic housing with clear cover, 120 x 90 x 50 mm (4.72 x 3.54 x 1.97 in), IP65
- Bus powered (approx. 400 mW), no auxiliary supply; ETS application SK80_F
- Not for corrosive or explosive environments
Technical Specifications
| Article no. | 30807000 |
|---|---|
| KNX bus voltage | KNX 21-32 VDC, approx. 20 mA |
| Power consumption | approx. 400 mW from KNX bus |
| Auxiliary supply | None – no additional voltage required (sensor head fed 13 V / 20 mA max from the unit) |
| Measuring | Fill level in m3, level, distance and %; resolution 1 mm (0.04 in); sensor accuracy 0.5 % FS; ultrasonic 300-5000 mm (11.8 to 196.9 in), hydrostatic 0-5000 / 0-10000 mm (0 to 393.7 in) |
| Inputs / outputs & connections | Sensor inputs 0-1 V, 0-5 V, 0-10 V, 4-20 mA (100 Ohm shunt), Modbus RTU RS485; potential-free switch output 20 mA, 5-230 V AC/DC tied to upper/lower limits; KNX terminal red/black; integrated display |
| Protection rating | IP65 |
| Dimensions | 120 x 90 x 50 mm (4.72 x 3.54 x 1.97 in) |
| Mounting | Wall/surface mount with screws; grey plastic housing with clear cover |
| Operating temperature | -20 to +55 °C (-4 to 131 °F) (storage -20 to +85 °C (-4 to 185 °F)), 0-95 % RH non-condensing; ultrasonic head -10..+50 °C (14 to 122 °F), hydrostatic head 0..+60 °C (32 to 140 °F) |
Application note: Measuring probe not included; pair the unit with a compatible ultrasonic or hydrostatic sensor head.
Downloads
(CE certified; not UL/NRTL listed — verify local code requirements before specifying in US installations)
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