X2-SDL
The X2-SDL Submersible Data Logger is a rugged, self-powered data logging and telemetry system for deploying environmental sensors in or near water without fear of accidental flooding.
- FEATURES
- QUICK SPECS
- RESOURCES
Rugged
The X2-SDL is designed with impact-resistant PVC, two elastomer bumpers, shock-mounted electronics and redundant seals. It can withstand extreme wave action, floods and underwater deployment to 200 ft.
Underwater Connectors
All connections are made with a simple waterproof thread-in connector. This removes the complications and errors associated with connecting individual wires.
Extended Battery Life
The X2-SDL operates for months on sixteen D-cell alkaline batteries. For longer deployments, extra alkaline battery packs and solar charging options are available.
Device-to-Web
When communicating via wireless telemetry, measurement data streams directly to the WQData LIVE web datacenter.
Communication Options
Real-time telemetry options include cellular, satellite, and radio. All communication modules are securely housed within the submersible enclosure, and a waterproof antenna is integrated on the top of the device.
Measurement Versatility
The X2-SDL is configured with three sensor ports to interface with multi-parameter sondes, water quality sensors, temperature strings, Doppler velocity meters, water level sensors, and more. Supported sensor interfaces include SD-12, RS-485 and RS-232.
Buoy Integration
The CB-50 data buoy is designed to accommodate the NexSens X2-SDL submersible data logging system for unattended deployment in lakes, rivers, and coastal waters.
X2-SDL Data Logger
| Material | PVC body with Acetal battery lid |
| Weight | 12.0 lbs. without batteries; 16.6 lbs. with batteries |
| Dimensions | 5.5” (13.97 cm) diameter; 17.3” (43.94 cm) length (antenna length varies by model) |
| Power Requirements | 5-24 VDC +/-15% (Reverse polarity protected) |
| Current Draw (Typical @ 12VDC) | Low power sleep: 200uA; Logger Active: 20mA; Wi-Fi Transmitting: 43mA; Cellular Transmitting: 200mA |
| Peak Current | Power supply must be able to sustain a 500mA 1-second peak current (@ 12V) |
| Operating Temperature | -20 to 70°C |
| Rating | Submersible to 200 ft. (requires SDL-CAP on telemetry models) |
| Wi-Fi Communications | 802.11b/g/n (Direct to X2 or Connect X2 to an existing network) |
| Wi-Fi Antenna | Internal to device |
| Wi-Fi Range | 250 ft. maximum1 |
| User Interface | RS-485 direct to PC software, WiFi-Enabled embedded web, WQDatalive Web Datacenter, Magnet trigger for WiFi enable, Status LEDs |
| Data Logging | 64MB internal flash*, 256MB microSD card (expandable up to 32GB) |
| Data Processing | Parameter level polynomial equation adjustment; Basic & Burst Averaging (min, max, standard deviation, and raw data available) |
| Real Time Clock (RTC) | <30sec/month drift2; Auto-sync weekly3; Internal backup battery |
| Log Interval | User configurable from 1 second (10 minute default)4; Unique interval per sensor |
| Transmission Trigger | Time-based, parameter threshold*; Selective parameter upload option |
| Sensor Interfaces | SDI-12, RS-232 (3 Channels), RS485 |
| Sensor Power | (3) 12V regulated switch channels with 1.5A capacity5,6 |
| Built-in Sensors | Temperature (-40C to 85C, 0.002C resolution, ±2C accuracy); Pressure (300 mbar to 1100 mbar, 0.016 mbar resolution, ±2 mbar accuracy); Humidity (0% to 100%, 0.04% resolution, ±5% accuracy); Battery voltage |
| Sensor Ports | (3) 8-Pin for Sensor Interface (RS-232, RS-485, SDI-12, 5V, 12V, GND) |
| Power Port | (1) 6-Pin for Power and Communication (Primary/Secondary/Backup Input, RS-485 Host, GND) |
Telemetry Options
| Cellular | CDMA 800,1900MHz, GSM 850, 900, 1800, 1900 MHz, UMTS/HSPA 850, 900, 1700, 1900, 2100 MHz |
| Radio* | 900MHz Mesh Network (902-928MHZ Frequency) |
| Iridium* | Short Burst Data (SBD) transceiver |
| Bridge* | Radio to WiFi, Radio to Cellular, and Radio to Iridium |
| Antenna Port | N-Style |
Sensor Support
| Tier 1 | Sensors automatically detected; No Setup |
| Tier 2 | Sensors automatically detected: Require limited setup |
| Tier 3* | Custom user script creation available for interfacing to a wide array of sensors |
| Current Sensor List | Available Here |
