Dependable Liquid Level Readings In a Wide Range of Environments
The True Echo™ PRL provides accurate level readings from all types of liquid level measurement, including oil-water interface measurement via additional firmware.
The True Echo™ PRL brings the unassailably accurate level readings of radar sensors to all types of liquid measurement.
Versatile Materials Two housing materials plus multiple antenna choices equals a sensor that operates anywhere you need it to.
Easy Wiring & Set-up From an isolated 4-20 mA output, to push-button field calibration, everything about the True Echo™ PRL is easy.
Oil-Water Interface Detector A firmware addition adds Oil-Water Interface detection to the True Echo™ PRL's already versatile capabilities.
PRL-017: 1 to 17 ft.
PRL-050: 1 to 50 ft.
PRL-100: 1 to 100 ft.
±0.25% of maximum range
6.1 μA (approx. 2622 digital counts across range)
Er > 2
RL = (VS - 6) / 24 mA
20-35 VDC (HART)
115 VAC, 60 Hz
230 VAC, 50 Hz
0.07 A max, 1.68 W @ 24 VDC
1.7 VA for 115/230 VAC
Part 15 for low power communications class II install
Isolated 4-20mA (VAC supply)
3 wire 4-20mA (VDC supply)
2 wire HART
Calibration & Diagnostics
316 Stainless Steel
1.5, 2, or 3 in. NPT
1.5, 2 in. Sanitary Tri-Clamp
13 in. Ø 316L SS Bottom Flange
Teflon Rod w/ Sanitary Tri-Clamp
316L Stainless Steel 6” Ø Horn
High Temperature Teflon Rod
High Temperature 316L SS Horn
Probe Operating Temperature
Standard: -40 to 176° F (-40 to 80° C)
High Temp: -40 to 350° F (-40 to 177° C)
Sanitary: -40 to 400° F (-40 to 204° C)
Extreme Temp: -40 to 572° F (-40 to 300° C)
Enclosure Operating Temperature
-40 to 140° F
Maximum Process Pressure
Standard Temp/Pressure: 5 bar (72.5 psi)
Standard Temp/High Pressure: 70 bar (1015.3 psi)
High/Sanitary/Extreme Temps: 2 bar (29.0 psi)