The AT100 is Based Upon the Magnetostrictive Principle. The Sensing Tube Contains a Wire, which is Pulsed at Fixed Time Intervals and the Interaction of the Current Pulse with the Magnetic Field Created by the Magnetic Float.
This Causes a Torsional Stress Wave to be Induced in the Wire. This Torsion Propagates Along the Wire at a Known Velocity from the Position of the Magnetic Float and Toward Both Ends of the Wire. A Patented Piezo-Magnetic Sensing Element Placed in the Transmitter Assembly Converts the Received Mechanical Torsion into an Electrical Return Pulse. The Microprocessor-Based Electronics Measures the Elapsed Time Between the Start and Return Pulses and Converts it into a 4-20 mA Output, which is Proportional to the Level Being Measured.
Features:
- SIL2 Certified IEC 61508*
- High Accuracy: .01% of Full Scale
- Superior Piezo Ceramic Sensor (Patent # 5,473,245)
- Local Indication with LCD Display
- Never Requires Re-Calibration: Set It & Forget It
- Dual Compartment Housing with Separate Field Terminal Compartment
- Loop Powered to 75’ (22M) Probe Length
- Total and/or Interface Level Measurement
- Pressure to 3000psig (207 bar), Std. 1800 psig (124.1 bar)
- Temperature Range: -320 to 800º F (-196 to 427ºC) with options
- Field Replaceable / Upgradable Electronics Module
- Built In RFI / EMI Filter
- Digital Communications
OPTIONS:
- Two Level Indications
- Temperature Indications
- Foundation Fieldbus Output
- Honeywell DE Output
- Glass Viewing Window
- 316L Stainless Steel Enclosure
- 20 Point Strapping Table
Catalog and Questionnaire List
Data sheet – AccuTrak AT100 High Accuracy Magnetostrictive Level Transmitter