811 LR, Long Range Cellular Ultrasonic Sensor

The Veeder-Root 811 LR, Long Range Cellular Ultrasonic Sensor is a flexible and configurable battery-operated liquid level sensor and remote tank monitor. It monitors fuel and chemical liquids in Aboveground Storage Tanks (ASTs) via Bluetooth or Cellular connectivity without the use of an Automatic Tank Gauge. This liquid level sensor has an integrated cellular modem supporting GSM (2G), LTE-CAT M1 & NB-IoT networks. It is a simple and cost-effective solution perfect for Commercial & Industrial applications.

811 LR Cellular Sensor

Features & Benefits

  • Remote Web-Enabled Interface to view data
  • Easy to install in existing riser openings
  • CE Conformance, ROHS, and PTCRB Compliant
  • 1-year warranty  


Functionality

  • Accurate, reliable tank level monitoring  
  • Programmable data reporting interval  
  • Remote configurability  
  • Programmable alarms
    • Full alert
    • Empty alert
    • Spill alert (not considered leak detection)
    • Fill alert
    • Low and high levels
    • 24/7 remote tank monitoring

 

 Applications

  • Liquid level monitoring  
    • Fuel – Oil, Kerosene, Diesel
    • Lubricants
    • Additives
    • DEF / AdBlue
    • Coolants
    • Water
    • Waste Oil
    • Wastewater
    • Chemicals *
  • Fixed or portable tanks
  • Ensure continued supply
  • Optimize delivery or collections  
  • Spot and continuous inventory measurement  

* This product may not be suitable for monitoring of certain corrosive and hazardous chemicals. List of product compatible chemicals to be verified with a Veeder-Root representative.  
 

Specifications

Dimensions101mm W x 93mm L x 197mm H ±1mm / 4” W x 3.66” L x 7.5” H ±0.04”
Weight530g/1.17lbs including 4 x C size batteries – 290g/0.6lbs without batteries
Housing MaterialUV Stabilized Polypropylene (compatible with Oil)
Operating Temperature 1-20°C to +50°C / -4°F to +122°F
Storage Temperature 1-30°C to +60°C / -22°F to +140°F
Altitude Range<2Km/1.25 miles above sea level
Environmental ProtectionIP67 – Outdoors
Radio Frequency (Modem Dependent)BG96LTE FDD (Cat M1 & Cat NB1): 
B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B26/B28

LTE TDD (Cat M1): B39 
EGPRS: 850/900/1800/1900MHz
BG95LTE FDD (Cat M1): 
B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B25/B26/B27/B28/B66/B85

LTE FDD (Cat NB2): 
B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B25/B28/B66/B71/B85 
EGPRS: 850/900/1800/1900MHz
GNSS (GPS) (Modem Dependent)BG96GPS, GLONASS, BeiDou/Compass, Galileo, QZSS
BG95GPS, GLONASS, BeiDou, Galileo, QZSS
Gauge TypeUltrasonic
SafetyClass 1 Div 2, Groups A,B,C, & D (-20℃ < Tamb < +50℃). UL 121201 9th Ed.
Ultrasonic Range 2>12cm to <4m / >4.7” to 157” at +20°C (-4°F) 
Ultrasonic Positioning Requirements No obstacles within 14° of ultrasonic sensor aperture 
Ultrasonic Resolution ±1cm / ±0.04” 
Accuracy >12cm to <8m / >4.7” to 315” at -20°C (-4°F) to  
>12cm to <10m / >4.7” to 394” at +20°C (+68°F)
Software Features Includes advanced sonics with quality parameters 
Material Compatibility Suitable for use in tanks for the storage of water diesel fuel, kerosene, gas oil types A2, C1, C2, and D, as defined by BS2869.
Power Requirements 4 of Type C LR14 Alkaline 1.5V (fitted)
Battery Life 35 Years     
Tank Mounting OptionsFit directly into 1¼”, 1½”, or 2” BSP existing tank connection 
SIM CardOptions available

1 Storage and operation above +20°C / +68°F may reduce battery life. Minimum distance measured is de-rated to 20cm with temperatures <0°C / +32°F. 

2 Based on a measurement to a flat liquid target of size 30cm2 / 4.7”2. Max range is 10m, however, this is reduced to 8m at temperatures of -20°C / - 4°F.

3 Based on one data drop per day in standard configuration at a location with adequate CAT-M1/NB-IoT coverage.

Conformity

EMC Directive 2014/30/EUThe Electromagnetic Compatibility (EMC) Directive ensures that electrical and electronic equipment does not generate, or is not affected by, electromagnetic disturbance.
LVD Directive 2014/35/EUThe Low Voltage Directive (LVD) ensures that electrical equipment within certain voltage limits provides a high level of protection for European citizens, and benefits fully from the Single Market. 
RED Directive 2014/53/EUThe Radio Equipment Directive (RED) ensures a Single Market for radio equipment by setting essential requirements for safety and health, electromagnetic compatibility, and the efficient use of the radio spectrum.
RoHs 2 Directive (2011/65/EU) and Delegated Directive RoHs 3 (EU) 2015/863These Directives lay down rules on the restriction of the use of hazardous substances in Electrical and Electronic Equipment (EEE) with a view to contributing to the protection of human health and the environment, including the environmentally sound recovery and disposal of waste EEE.
REACH ComplianceIn accordance with (EC) 1907/2006
CE ComplianceYes

Product Form

Product NumberDescription
0881111-812811 LR Ultrasonic CAT-M1 Veeder-Root AT&T
0881112-812811 LR Ultrasonic CAT-M1 Veeder-Root Verizon
0881115-812811 LR Ultrasonic CAT-M1 Veeder-Root 1NCE *

* 1NCE is the global Tier-1 IoT Carrier specialized in providing managed connectivity services for low bandwidth IoT.

Note: Monitor your Liquid Level Measuring Sensors (LLMS) in one central place, real-time. Whether you want a stand-alone online platform to view LLMS data for your aboveground storage tanks or a combined view with probe data from your underground storage tanks, we have the Cloud Hosted Fuel Management Solution for you. Contact your Veeder-Root sales representative for more information.

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