Pressure sensor pneumatic gauge PS-Light-2
Category: Surface water - Sensors , Data Logger , Remote transmission
- Compact, robust measurement system for measurement of water level using the „bubble gauge“ principle
- Maintenance-free – No pumb lubricant or moisture absorber needed
- High accuracy (0.05 % FS) and long-term stability through smart sensor drift compensation
- Measuring ranges: 0-10 m (standard), Option:0-20 m, 0-40 m
- Low energy consumption through optimised pump control
- Wide range of output signals 0-1 V, 0-5 V, 0/4-20 mA, RS 485 (SDI-12, SHWP) for uncomplicated connection to external data collectors or to process control systems (SPS)
- Easy installation on the existing water level stations, protective housing or control cabinets
- Optionally available with integrated data logger
- Optionally available with integrated data logger and modem for remote data-transmission (4G/LTE)
Robust, reliable and accurate:
Using a high-performance, durable and brushless small compressor, air is forced at adjustable measuring intervals into the water via a tube. The pressure generated in the transmission line corresponds exactly to the hydrostatic pressure over the outlet nozzle. This is measured using a ceramic pressure measuring cell in the PS Light-2. Prior to each measurement a sensor drift compensation occurs. PS-Light-2 is as precise after many years of operation as on day one.
Maintenance-free:
The measuring cell of the PS-Light-2 does not come directly into contact with the measured medium and therefore does not have to be cleaned regularly of deposits (e.g. lime).
Safe:
Since, as is generally known, air is not conductive, elaborate electronic overvoltage protection can be dispensed with.
Self-sufficient:
PS-Light-2 engages in a continuous measurement operation and can easily be autonomously supplied with solar panels (e.g. 50 W panel, at 5-minute measuring interval and 1/4 hourly transmission).
Last but not least:
The measurement system is available in several versions PS-Light-2 sensor with or without an LCD, PS-Light-2-LCD with an integrated data collector and as a compact data transferring station PS-Light-2-Modem (including remote data transmission).
- Water level measurement in flowing waters, lakes, retention basins (flood control reservoirs, storm water overflow tanks), dams and containers
Pressure pipe:
Operating software:
SEBAConfig (Windows)
SEBA Modem Configurator
SEBAConfigApp (Android)
Operating Unit:
HDA-Pro
HDA Tablet
Data readout:
Interface cable (USB, RS232)
BlueCon 2 (Bluetooth®)
External power supply:
PowerBox (7.2 Ah battery, charger, deep discharge protection, protective housing), power supply unit 230V/12V
Retrieval software: DEMASole
Evaluation software: DEMASvis
Archiving Software: DEMASdb
WEB portal: SEBA Hydrocenter
Parameters: Water level [m],[cm]
Sensor: Relative pressure sensor
Measurement principle: Bubble gauge principle (pneumatic)
Measuring range: 0-10 m (standard), Option:0-20 m, 0-40 m
Measuring accuracy: ± 0.05% FS
Measuring interval: adjustable from 2 minutes upwards
Housing
Material: Plastic
Dimensions: 240x160x94 mm (Standard)
Display: 3 lines, 16 characters, backlight (option: type PS-Light-2 Sensor LCD, PS-Light-2)
Keyboard: 3 function keys
Protection class: IP65
Fastening: Wall mounting
Communications Interface: RS232, USB, Bluetooth
Outputs:
Digital: RS485: SHWP (standard), SDI-12
Analog:
0-1 V, 0-5 V, 0/4-20 mA
*) only one of the above outputs can be selected in each case
Power supply: 11...15 VDC
Operating temperature: -20 °C...+60 °C
Cable: 2 m signal cable included
Option: PS-Light-2
Logger
Controller:
32Bit Flash controller with integrated WatchDog
RTC-IC Real-Time Clock
Memory capacity: 16 MB (= 1.120.000 readings)
Save interval: from 2 minutes upwards
Measurement routines: Single value, average value, event clock, Delta mode, pumping test control
Inlet: SHWP (RS485) for connecting digital SEBA probes (option)
Communications
Interface: RS232
Operation:
Interface cable (USB/RS232)
BlueCon 2 (Bluetooth®)
Modem 4G:
Supported transmission: GPRS/EDGE/UMTS/HSDPA/HSDPA+/LTE, GSM (SMS alert)
Frequencies: 4G: B1, B2, B3, B4, B5, B7, B8, B9, B12, B13, B14, B18, B19, B20, B25, B26, B28 I 3G: B1, B2, B4, B5, B6, B8, B19 I 2G: B2, B3, B5, B8
Antenna:
Dual-band rod antenna: 900, 1800 MHz
5 dB angle rod antenna (optional)
Puck antenna (optional)
Directional antenna (optional)
Pressure pipe:
with protective sheath
Dimensions:
Inner Ø: 6 mm/4 mm
max. Length: 100 m (standard)
Other length customisation possible.
