LL4/LL5 Wireless Liquid Level Transmitter — Hydrostatic

LL4/LL5 – Hydrostatic

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LL4/LL5 – Hydrostatic

This wireless instrument determines level measurements by monitoring pressure at the bottom most point of vented top-mount tanks, deep wells, water towers and rivers.

The liquid level monitoring device is an ideal low cost solution when liquid temperature and densities are not changing. The LL4 direct mount version provides mounting solution and cable length is cut to customer specification. The  LL5 multi-vendor version provides a junction box, terminal block, and retaining clip for making wiring hassle-free.

Description

OleumTech WT Series Wireless Liquid Level Transmitter – Hydrostatic is a self-contained, battery-powered liquid measurement solution made especially for the remote, rugged environments without access to a power line.

This device is part of the OleumTech Wireless Sensor Network.

This wireless instrument determines level measurements by monitoring pressure at the bottom most point of vented top-mount tanks, deep wells, water towers and rivers. The liquid level monitoring device is an ideal low cost solution when liquid temperature and densities are not changing. The LL4 direct mount version provides mounting solution and cable length is cut to customer specification. The  LL5 multi-vendor version provides a junction box, terminal block, and retaining clip for making wiring hassle-free.

All WT Series Wireless Transmitters are equipped with a local LCD display that can be used for reading process data and for programming the device. Thus, cables and PC are no longer required for quickly setting up the device.

The Wireless Hydrostatic Liquid Level Transmitter is intrinsically safe (certified for use in Class I, Division 1 C1D1 Wireless (Zone 0) hazardous areas). It can be operated in a hazardous environment with or without the enclosure without the risk or fear of causing an explosion. This wireless end node transmits collected data to a Wireless Gateway that supports Modbus. The transmitter uses license-free, secure data transmission with a range of up to 7500 ft. Range (2.3 Km).

Capabilities

  • Self-Contained, Battery-Powered, Intrinsically Safe
  • 1x Analog Input (0-5 Volt, 24-bit ADC) / User Selectable Display Units (US or Metric)
  • Determines Level Measurement by Monitoring Pressure at the Bottom Point of Vented Top Mount Tanks, Deep Wells, Water Towers, Rivers, and More
  • Provides Level, Volume, Tank Full %, and More
  • LL4 – Direct-Mount Version Ships with Fixed Sensor Length and Mounting Solution
  • LL5 – Multi-Vendor Version Includes Terminal Block for Easy Wiring and Cable Strain-relief Solution
  • LL5 – Also Provides 1x Discrete Input (For Dry Contact or Open-Drain Output/NPN Device)  Normally Open or Normally Closed Input Function  On/Off Status Reporting, Transition Count Reporting, On Delay Exception Reporting
  • Designed to Help Meet EPA Spill Prevention (SPCC) and API Inventory Monitoring Requirements
  • Connects to Wireless Gateways
  • Model Numbers:
    • 900 MHz: WT-0900-LL4 (Direct Mount), WT-0900-LL5 (Multi-Vendor)
    • 2.4 GHz: WT-2400-LL4 (Direct Mount), WT-2400-LL5 (Multi-Vendor)

Tech Specs

SPECIFICATION DESCRIPTION
HARDWARE FEATURES
Device Functionality Liquid Level Sensing Wireless Transmitter Using Hydrostatic Technology
Embedded Controller Ultra-Low Power RISC Microcontroller with Internal FLASH (Field Upgradeable)
User Interface Standard RS232 Serial, LCD Puck Module
Sensor Type Hydrostatic Pressure, Up to 25 PSI, Wide Operating Temperature Range
Accuracy < +/-0.25 % BFSL
Power Source Self-Contained, Internal 3.6 V Lithium Battery
Internal Battery Life Up to 10 Years, Based on Usage
Local LCD Display 32-Character Display (16×2 Lines) with 4 Function Keys + Read Button
Instant Displayable Read Level / Battery Voltage / RF Status
Local Configuration Cable-Free RF Connection and Setting All Device Parameters
WIRELESS COMMUNICATIONS
Radio ISM Band, FSK (Frequency-Shift Keying)
AES Encryption 256-bit (900 MHz)/128-bit (915 MHz)
FHSS (Frequency Hopping Spread Spectrum)
Frequency 900 MHz
Data Rate 9600 bps / 115.2 kbps
Output Power 1 mW or 10 mW
Receiving Sensitivity -110 dBm @ 9600 bps or -100 dBm @ 115.2 kbps
Range Up to 7500 Feet (2.3 km) with Clear Line of Sight*
CERTIFICATIONS & COMPLIANCE
EMC/EMI FCC Part 15 (USA); IC ICES-003 (Canada)
Safety
  • Class I; Division 1, Groups C, D T3C
  • Class I Zone 0 AEx ia IIB T3 Ga
  • ATEX: Sira 13ATEX2142X; Ex ia IIB T3 Ga
  • IECEx: SIR 13.0054X; Ex ia IIB T3 Ga
MECHANICAL SPECIFICATIONS
Dimensions, LL4 5.5″ (W) x 19.75″ (H) x 4.25″ (D) / 140mm (W) x 502mm (H) x 108mm (D)
Dimensions, LL5 5.5″ (W) x 12.8″ (H) x 4.25″ (D) / 140mm (W) x 325mm (H) x 108mm (D)
Package Dimensions, LL4 14″ (W) x 30″ (H) x 7″ (D) / 356mm (W) x 762mm (H) x 177.8mm (D)
Package Dimensions, LL5 10.25″ (W) x 14″ (H) x 6.5″ (D) / 260mm (W) x 356mm (H) x 165mm (D)
Weight, LL4 Net: 4 lbs / 1.8 kg Gross: 7 lbs / 3.2 kg
Weight, LL5 Net: 7 lbs / 3.2 kg Gross: 10 lbs / 4.5 kg (Excluding Sensor Weight)
Hardware Connection LL4: 1.5″ NPT Male Compression Fitting; LL5: 3/4″ NPT Female
Enclosure Casing Material Type 4X Aluminum; IP66
GENERAL SPECIFICATIONS
Operating Conditions
  • Ambient Temperature (Class I; Division 1): Transmitter -40 °F to 158 °F
    (-40 °C to 70 °C); LCD Screen -4 °F to 158 °F (-20 °C to 70 °C)
  • Ambient Temperature (ATEX, IECEx): -20 °C to 70 °C (-4 °F to 158 °F)
  • Ambient Temperature (Non-Hazardous Applications): Transmitter
    -40 °F to 185 °F (-40 °C to 85 °C); LCD Screen -4 °F to 158 °F (-20 °C to 70 °C)
  • Humidity: 0 to 99 %, Non-Condensing
Warranty 2-Year Parts and Labor
Country of Origin Made in USA

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