Remote Telemetry Rain Gauge StationRemote water and rain stations (water level stations, rainfall stations, water and rainfall stations, etc.) are primarily used for monitoring river channels, reservoirs, surface water levels, groundwater levels, and rainfall amounts. Monitoring data can be transmitted to the monitoring platform via GPRS/GSM or Beidou satellite SMS. 1. Main Functions 1.1 Flowmeters available in any option (buoy type, pressure type, ultrasonic type, radar type, bubble type, etc.), with two data transmission mechanisms: incremental control and time control. Increment thresholds and timing cycles can be configured arbitrarily. 1.2 Additional rain gauges (bucket-type rain gauges, weighing snow/rain gauges, acoustic rain gauges, etc.) are available upon request. 1.3 Large capacity FLASH storage, rainfall data can be stored for over 3 years. 1.4 Equipped with GPRS/SMS, wireless short-range, and other communication methods. Supports multi-center working mode, with a remote telemetry station capable of sending data to up to 5 central stations. Each center can have two communication channels, serving as backups for each other. 1.5 Supports self-declaration, self-declaration-confirmation, and response three data communication methods, which can be mixed for networking. 1.6 Supports three power management modes: Power-off, Sleep, and Always-On. 1.7 Supports remote wake-up and responds to central commands. In the sleep state at the detection station, the center can wake up the terminal at any time for data collection, read self-recorded data from any time period, or modify the configuration information of the monitoring station, etc. 1.8 As needed, add BeiDou satellite communication method. 2 Technical Specifications 2.1 Remote Terminal Unit (RTU) Parameters: 2.1.1 Frequency Range: 885-915 MHz, 1710-1755 MHz 2.1.2 Bandwidth Usage: <200 kHz 2.1.3 Transmission Power: 33/30 dBm ±2 dB 2.1.4 Modulation Method: GMSK 2.1.5 Communication Method: Scheduled/Quantitative, Wake-up and Polling 2.1.6 Data Collection Interface: Parallel I/O (TTL), RS-485 Communication, Duplex Serial Communication (TTL), Passive Contacts, etc. 2..17 Power Supply: 12V~24V DC 2.1.8 Operating Current: <0.5mA @6V (sleep), <12mA @12V (idle), <100mA @12V (communication), <1.5A @12V (peak) 2.1.9 Power Output: Output voltage is equal to the power supply voltage minus 0.5V, output current is less than 1A. 2.1.10 Working Environment: Ambient temperature -10°C to 45°C (-30°C to +65°C optional), relative humidity <95% at 40°C. 2.1.11 RTU Dimensions and Weight: External dimensions (Length x Width x Height): 220×90×41(mm), Weight: <250g (Excluding Antenna) 2.1.12 Mean Time Between Failures (MTBF): 100,000 hours 2.2 See the instruction manual for level gauge parameters. 2.3 Rain gauge parameters are detailed in the manual. |