Accurate Submersible Level Monitoring, Wirelessly Simplified

Overview:

Accutech SL10 Wireless Submersible Level Field Unit

The Accutech™ SL10 wireless submersible level field unit measures hydrostatic level in vented tanks or wells. It samples and reports pressure readings at specified intervals, allowing for user-defined low-rate and high-rate conditions. The sensor, cable-mounted and submersed in the tank liquid, supports specific gravity correction and common level units of measurement.

Key Facts and Features:

• Sensor Type: Submersible Hydrostatic Level
• Frequency Range: 900 MHz and 2.4 GHz license-free bands
• Pressure Range Options: 5 PSIG (0.345 BAR), 10 PSIG (0.689 BAR), 15 PSIG (1.034 BAR), 30 PSIG (2.068 BAR)
• Accuracy: ± 0.5% from -10...+30 °C (+14...+86 °F)
• Temperature Effect: ±0.02% per °C between -40...-10 °C (-40...+14 °F) and +30...+85 °C (+86...+155 °F)
• Stability/Drift: Typically ± 0.1% of full scale per year, maximum ± 0.3% per year
• Battery Life: Up to 10 years, depending on configuration
• Durable Design: Housed in a weather-resistant NEMA 4X enclosure with options for remote sensor and antenna.
• User-Friendly: Integrated LCD display with membrane-switch buttons for easy local configuration and error message display.
• Self-Diagnostics: Continuous monitoring of operation with notification of out-of-spec parameters.
• Local Configuration Interface: Configure sampling and RF parameters using membrane-switch buttons.
• Remote Configuration: Via Accutech Manager software for network-wide monitoring and management.
• Network Capacity: Supports up to 100 field units per base radio and 256 base radios per network.
• Low Battery Notification: Indicates the need to replace the battery approximately one month in advance.

Benefits:

• Wireless Flexibility: Integrated frequency-hopping spread-spectrum transceiver for robust communication over distances up to 3000 ft (1000 m).
• Battery Efficiency: Configurable sampling and transmission rates extend battery life.
• Scalability: Supports up to 100 field units per base radio and 256 base radios per network.

Applications:

• Hydrostatic level measurement in vented tanks or wells
• Industrial level monitoring
• Any industry requiring precise and reliable level measurements

Technical Specifications:

Operating Temperature:

• Electronics: -40...+85 °C (-40...+185 °F)
• Display: -40...-20 °C (-40...-4 °F) with reduced visibility
• Process Fluid Temperature: -2...+60 °C (-4...+140 °F)
• Humidity: 0...95%, non-condensing

Materials:

• Sensor Body: 316L Stainless Steel with Buna-N seal
• Submersible Sensor Cable: Polyethylene jacket, vent tube protected with a hydrophobic filter
• Fittings: 316L Stainless Steel, epoxy-coated aluminum enclosure
• Power: Self-contained with 1 D-cell Lithium Thionyl battery

Communication:

• 900 MHz: 902...928 MHz band, data rates of 19.2 kbps and 76.8 kbps
• 2.4 GHz: 2400...2483.5 MHz band, data rates of 50/100 kbps
• Environmental Testing: Tested per IEC 60068-2-6 (vibration) and IEC 60068-2-27 (shock)
• Electromagnetic Compatibility: Operates within specification in fields from 80...1,000 MHz with field strengths to 30 V/m. Meets IEC 61000-6-2 General Immunity Standard and IEC 6100-6-4 compatibility emissions standard
• Output Resolution: 24-bit analog-to-digital conversion