1. Pressure Level Sensor OTT PLS

2. Professional Monitoring
Water Level
Professional Monitoring
Solutions by
Measured Parameters
- Level, Depth to Water
- Temperature
| Dez-18
| OTT PLS | Pressure Level Sensor

3. OTT PLS
The pressure probe OTT PLS reliably measures the water level in (ground- and) open surface waters.
The PLS features a long-term stable, highly precise, capacitive-ceramic pressure cell. This cell is extremely robust and insensitive against mechanical overload as well as against aggressive media.
Basically it consits of a sensor card, a housing, the measuring tube and the bubble pot which is installed in the water.
| Dez-18
| OTT PLS | Pressure Level Sensor

4. OTT PLS Design features that are convincing
Serial data interface SDI-12, RS 485
or 4…20 mA signal
Cable with Kevlar core for long term stable mounting
Integrated Microcontroller for calculation,
temperature compensation, considering of
acceleration of gravity
Sealed cable connection
Robust design
IP68 … Stainless steel (DIN (904L) )
Ceramic-capacitive sensor
| Dez-18
| OTT PLS | Pressure Level Sensor

5. OTT PLS Features for your benefit! Features
Highly accurate, robust & reliable
Digital interface SDI-12, RS 485
Digital interface SDI-12 / RS 485
Programmable through serial interface mA scaled to a measurement range
for wells 1” and bigger
Temperature compensation
Long term stable
Benefits
Precise results
Easy fit to all data loggers – flexible
Level & temperature available
Flexible, better resolution with optimized 4…20 mA scaling
The right solution for almost every site
Accurate reliable data
Reliable data
| Dez-18
| OTT PLS | Pressure Level Sensor

6. OTT PLS
Technical Data
Interfaces mA, SDI-12, RS (SDI-12 protocol)
L x D 195 mm x 22 mm
Weight 0.3 kg
Operating temperature ºC
Relative humidity %, non condensing
Material housing Stainless Steel DIN (904L)
Measuring range: 0 – 4 m – 10 m 0 – 20 m 0 – 40 m
Accuracy 0.05% FS
Long term stability ±0.1 % FS max. per year
Power supply V V DC, typical 12/24 V DC
Power consumption (SDI-12) active < 3.6 mA
| Dez-18
| OTT PLS | Pressure Level Sensor

7. OTT PLS Why OTT PLS ? Robust design for accurate & reliable values
Choice between serial or 4…20 mA signal
Flexible, fits in 1“ or bigger
Easy to adapt to the application: programmable e.g. 4…20 mA scaling
Serial interface, output of level and temperature
| Dez-18
| OTT PLS | Pressure Level Sensor

8. OTT PLS The Environment is worth it Powerful Logging Recyclable
Mercury free
Prepared to be compliant to WEEE1) EU Directive
RoHS2) EU Directive
1) DIRECTIVE 2002/96/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 27 January 2003 on waste electrical and electronic equipment (WEEE)
2) DIRECTIVE 2002/95/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL on the restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS)
Recyclable
| Dez-18
| OTT PLS | Pressure Level Sensor

9. OTT PLS – Accessories OTT FAD5
Connection box between sensor cable and data cable with air drying cartridge -avoids damages to senor through condensated water in the barometric pressure compensation capillary
air drying cartridge
data line
wire connectors
inspection window – cartridge status
probe cable
| Dez-18
| OTT PLS | Pressure Level Sensor