Accu-Gage® - Sonar Liquid-Liquid Interface Measurement

Unlike any other transmitter, Liquid-Liquid interface levels are measured by the Accu-Gage® Sonar Level transmitter without requiring measurable electrical property or density differences. Using patented sensor technology, sonar pulses are reflected off the physical interface boundary and surface level, allowing simultaneous interface, level – even the accumulation of solids on the bottom! – measurement.

Accu-Gage® is suitable for all types of process vessels and storage tanks - including floating roof, cone roof, bullets or spheres. Grade mounting avoids roof access for maintenance or gauging on storage tanks.

Accu-Gage® can be installed in the top, bottom or sidewall without having to take the vessel or tank out of service, thereby avoiding costly down time.

Reliability is high and maintenance is minimal because there are no moving parts.

Measurement accuracy is obtained by continuous self-calibration against a known reference target - eliminating effects of temperature, pressure, density and composition changes. Measurement data is transmitted as up to four individually isolated 4-20mA outputs to the user’s display or controller.

Developed by CTI Manufacturing, Inc. over a twelve year period, the Accu-Gage® has proven successful in materials as diverse as asphalt, liquid sulfur, water, cooking oil, sulfuric acid, crude oil and butane using our Liquid Radar™ technology.

Typical Application

Oil Production

Refinery

Chemical Plants

Food Processing

Storage Facilities

Advantages

Measures interfaces even with negligible density or electrical property differences

Greater accuracy through direct measurement, continuous self calibration and stable reference point.

Improved reliability through sound design, extensive field testing, no moving parts.

Simple installation normally requires one mechanic to insert through a two inch valve.

Able to measure boundary layers

Able to operate in temperature and/or pressure environments most other instruments cannot function

The avoidance of costly down time for installation or recalibration.

Accu-Gage’s Liquid Radar™ Technology
lets you see what is going on inside your vessel!

Sensor Model P1 Specifications

₍₁₎Weight	10 lbs
₍₂₎Overall Length w\calibrator	5 ft
₍₃₎Operating Pressure	100 psi standard (higher pressure models available)
Operating Temperature	-30° F to +400° F
Accuracy	1% of range
₍₄₎Calibration	Self calibrating
Range	6 in. to 60 ft.
Wetted Parts	316 Stainless Steel and better alloys standard. Viton seals standard. Hastelloy, Monel, and other specialty alloys - along with numerous seal materials - are available as options.
Installation Requirements	Retractable: Two inch full opening valve Non-Retractable: Two inch opening Connection: Flanged or screwed
Maximum Cable Distance to Signal Processor	500 ft with 22 AWG or larger twisted pair cable
Hazardous Area Class	Explosion Proof, Class 1, Group C and D Division 1
(1) With screwed sliding seal and standard shaft length (2) Special lengths on request (3) Pressure limit shown is for manually retractable sensor. Higher pressure limits are available for non-retractable sensors, and retractable sensors fitted with hydraulic or mechanically assisted retractors (4) Continuous self calibration is standard. Manual calibration sensors are available upon request

Signal Processor Specifications

Enclosure	NEMA 4X SS
Dimensions	H 12" x W 10" x D 6.5" (305 x 254 x 165 mm)
Power Requirement	85-265 VAC, 47-440 Hz (optional 18-75 VDC) at less than 10 Watts
Output	4-20 mA (up to 4 isolated outputs)

Accu-Gage® is a registered trademark of Coherent Technologies, Inc. Other trademarks belong to their respective owners.
Copyright © 1998-2003 Coherent Technologies, Inc. All Rights Reserved.
Comments or questions should be sent to Administrator.

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