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Plexus - Intelligent Wireless SCADA Precision Level Reader System
The Plexus Controls Precision Level Reader System (PLR) permits field staff to use the portable system to take water depth measurements from sites with depth measurement tubes already installed, avoiding well cap removal and exposure to potentially harmful gasses. Using an internal air pump, the PLR pressurizes a hose that is installed permanently inside the well and calculates the water depth from the pressure (or differential pressure) value. The system offers a host of user features to speed up the read and data logging process such as local save and recall of well site information (casing height ASL, tube depth), and provides a water level calculation of height above sea level.
In addition the systems optional GPS interface provides an automated site location feature.
The data log will save well name, location and time and date to a csv file for downloading. Alarm features such as hose connection integrity and blocked hose helps to identify any fault condition with the measurement.
The PLR uses the Trimble TDS Nomad hardware platform any Windows Mobile 5 or 6 hardware with Bluetooth installed.
Bluetooth Specifications
- Profiles: 2.1 + EDR, 2.0, 1.2, 1.1
- Frequency: 2.412 – 2.484 GHz ISM
- Modulation FHSS/GFSK modulation, 79 channels at 1MHz intervals
- Power Output: +4dBm
System Specifications (Remote Monitoring System)
- Battery: 12V 1.6Ah Rechargeable NiMH
- Charger: 12V NiMH Smart Wall Plug Charger
- Hose Connection: High and Low Pressure – 3/16” Brass Barb
- Water Depth: 200” or 400”
- Accuracy: Approx. ±0.25” or ±0.5”
Security
- Data Encryption: AES 128bit available (optional)
Physical, Electrical & Environmental
- Mounting: Portable
- Operating Temperature: -20C to +50C
- Relative Humidity: 0-100% Condensing
- Enclosure:
- 9” (w) x 4" (h) x 8” (d)
- (228mm x 100mm x 203mm)
- Weight: 42oz (1.2kg) (approx)