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LevelSense shaft encoder
Category: Surface water – Sensors
- User-friendly shaft encoder for precise detection of water level fluctuations with a float and counterweight
- Measuring range: 0-15 m with a ball chain or 0-100 m with float rope
- Measuring accuracy: 2.5 mm (depending on the size of the float)
- 3-line display of the current measured values
- Output signals: RS485 (SHWP), SDI-12, MODBUS, 0/4-20 mA
- Internal 9V back-up battery
- Optionally with integrated data logger: UniLog Light ENC
Benefits
Precise and drift-free: The ball chain and the floating pulley ensure slippage-free operation even during rapid changes in water level. The float/counterweight principle is not affected by sensor drift. Therefore, even after many years of operation, LevelSense measures as reliably and accurately as on the first day.
Plug-and-play: LevelSense can easily be connected to external data loggers and controllers (PLCs). The choices are either analog (0/4-20 mA) or digital output signals (SHWP, MODBUS, SDI12).
User-friendly: By turning the float wheel, the user can adjust or correct LevelSense easily using the LCD without any notebook or tablet. Moreover, the three function keys can be used to display all relevant information.
Last but not least: In the variant Unilog-Light-ENC, the shaft encoder is additionally equipped with an integrated, high-performance data logger for the storage of measurement values.
Application
Water level measurement in water level stations with float shaft and in pipes from Ø 4 “
Accessories
Deflecting arm for ball chain/float cable
Data Logger: Unilog-Light-ENC
Scope of delivery:
- Shaft encoder
- Sensing wheel for ball chain or float cable including table mounting
- 4″ float and counterweight
- 15m ball chain
Specifications
Parameters: Water level [m],[cm]
Sensor: Shaft encoder
Measurement principle: Float/counterweight
Measuring range:
- 0- 15 m with a ball chain
- 0-100 m with float rope
Measuring accuracy: 2.5 mm (depending on the float size)
Housing Material: Aluminum
Dimensions: 143x85x38 mm (LxWxH)
Display: 3 lines, 16 characters, backlight
Keyboard: 3 function keys
Protection class: IP65
Communications Interface: RS232
Outputs
- Digital: SHWP (RS485) standard, SDI-12, MODBUS (Option)
- Analog: 0/4-20 mA, 0-1 V, 0-5 V
* only one of the above-mentioned outputs can be chosen from
Power supply Internal: 9 V block battery 6LR61 alkaline manganese (standard), 9 V block battery 6AM6 Lithium (option)
External: 9-15 V DC
Operating temperature: -40 °C – +70 °C
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