True Echo Pulse Radar Level Transmitter For Liquids
True Echo Pulse Radar Level Transmitter For Liquids - Image 2
True Echo Pulse Radar Level Transmitter For Liquids - Image 3

True Echo Pulse Radar Level Transmitter For Liquids

PRL

Dependable Liquid Level Readings In a Wide Range of Environments

The True Echo™ PRL Pulse Radar Level Transmitter provides precise liquid level readings for various applications, including oil-water interface measurement with added firmware. This reliable radar sensor is ideal for liquid level measurement in multiple environments, delivering unmatched accuracy and versatility.

Versatile Materials: Available with two housing materials and multiple antenna options, the True Echo™ PRL sensor adapts to a wide range of operational environments.

Easy Wiring & Setup: Featuring isolated 4-20mA output and push-button field calibration, the True Echo™ PRL is designed for effortless installation and use.

Oil-Water Interface Detection: A firmware upgrade adds oil-water interface detection to enhance the PRL’s already versatile features.

  • Multiple Range Options: Ranges to 17, 50, or 100 feet
  • High Accuracy: ±0.25% of measured range accuracy
  • Precision Output: 6.1 μA output resolution
  • Configurable Output: Field configurable 4-20 mA/20-4 mA Output
  • Flexible Communication: RS-232, RS-485, or HART communications
  • Advanced Software: PC calibration, diagnostic and data logging software
  • PLC compatible: Modbus RTU
  • Durable Enclosure: Nema 6/ IP68 enclosure rating
  • Easy Installation: Simple installation and setup
  • Automatic Tank Adjustments: Automatic adjustments for most tank conditions

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PDF Download Icon

PRL
Install Guide
Software Download Icon

Pulse Radar Probe
Gateway Software Download
  • Operating Range:
    • PRL-017: 1 -17 ft. (0.3 – 5 m)
    • PRL-050: 1 – 50 ft. (0.3 – 15 m)
    • PRL-100: 1 – 100 ft. (0.3 – 30 m)
  • Frequency: 6.3 GHz
  • Accuracy: ± 0.25% of measured range
  • 4-20 mA Resolution: 6.1 μA (approx. 2622 digital counts across range)
  • Target Dielectric Constant: εr > 2
  • Enclosure Operating Temperature: -40º to 140ºF (-40 to 60ºC)
  • Process/Probe Temperatures:
    • Standard: -40º to 176ºF (-40 to 80ºC)
    • High Temp: -40º to 350ºF (-40 to 177ºC)
    • Sanitary: -40º to 400ºF (-40 to 204ºC)
    • Extreme Temp: -40º to 572ºF (-40 to 300ºC)
  • Maximum Process Pressures:
    • Standard Temp/Pressure: 5 bar (72.5 psi)
    • Standard Temp/High Press: 70 bar (1015.3 psi)
    • High/Sanitary/Extreme Temps: 2 bar (29.0 psi)
  • Enclosure:
    • NEMA 6: Aluminum or 316L Stainless Steel, IP68 Sealing
  • Loop Resistance: RL = (VS – 6) / 24 mA
  • Input Voltage:
    • 12-30 VDC; 20-35 VDC (HART);
    • 115 VAC (60 Hz); 230 VAC (50 Hz)
  • Power Consumption:
    • 0.07 A max, 1.68 W @ 24 VDC
    • 1.7 VA for 115/230 VAC
  • RS-485, RS-232, or HART for calibration and diagnostics
  • Output: 4-20 mA (shared common or isolated); HART 7
  • Antenna:
    • Rod: Teflon, 10.3” (261.6 mm)
      • Beam Spread: 6° from center
    • Horn: 316L Stainless Steel, Ø 6.3” (160 mm)
      • Beam spread: 3° from center
  • FCC
    • Part 15 for low power communications class II install
What is the True Echo™ PRL Pulse Radar Level Transmitter used for?

The True Echo™ PRL is designed for precise liquid level measurements across various industrial applications. It is especially effective for oil-water interface detection and is suitable for environments that require accurate liquid level monitoring, such as tanks and vessels.

With a firmware upgrade, the True Echo™ PRL can detect the interface between oil and water. This feature enhances the versatility of the sensor, allowing it to accurately differentiate between two liquid layers.

The True Echo™ PRL comes with two housing materials—aluminum and 316 stainless steel—and a variety of mounting options. This ensures compatibility with various operational environments, including harsh industrial settings.

Yes, the True Echo™ PRL is NEMA 6/IP68 rated, which means it is dust-tight and can withstand immersion in water, offering robust protection in challenging environmental conditions.

Yes, the True Echo™ PRL is available with a sanitary tri-clamp mounting option, making it suitable for applications requiring hygienic conditions.

OUTPUT

4-20 mA
RANGE

1' – 100', 1' – 15', 1' – 25', 1' – 30', 1' – 50', 16' – 30', 31' – 50'
ENCLOSURE PROTECTION

IP68, NEMA 6
INPUT

Voltage
INDUSTRY

Chemical, Food & Beverage, Industrial Automation, Marine, Oil & Gas, Water & Wastewater
CERTIFICATION

FCC
MOUNT

2"

WARRANTY

APG warrants its products to be free from defects in material and workmanship under normal use and service of the product for 24 months from the date of shipment from APG, unless otherwise specified by APG in writing. Read our full warranty policy HERE.

RETURNS

Returns and allowances must be authorized by APG in advance, which authorization may be granted or withheld by APG in APG’s sole and absolute discretion. Read our full return policy HERE.

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