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MAS2600: Description and Technical Data Reference Manual
December 2014 Ed 21
5
Description and Operation
MAS2600 Tank Contents Transmitter
The MAS2600 is a 2-wire 4-20 mA level transmitter consisting of a transducer, an amplifier and an
interconnecting cable.
Transducer
The transducer is a pressure sensitive silicon micro strain gauge sensor mounted in a glass to metal
seal. The sensor is protected by an isolation diaphragm, welded to the transducer housing, with an oil
filling between the sensor and the diaphragm. Pressure changes on the front of the diaphragm will
bring a resistance change in the Wheatstone bridge of the transducer. This change in the Wheat-
stone bridge will be transmitted to the amplifier as a change in the electrical signal.
The transducer is fully welded, housed in titanium with a titanium diaphragm.
All transducer types are submersible (IP68).
The transducer is available in two versions:
• Gauge version
• Absolute version
As optional the transducer is available with a built-in Pt100 temperature sensor.
Cable
The cable is available as a standard version and as a high temperature version.
Amplifier
The amplifier is available in the following options:
• Programmable version: Calibration is made by dip switches and potentiometers
• Differential version: For measuring of both pressure and vacuum
The amplifier is housed in a sea water resistant polyester casing (IP56).
Application
The MAS2600 has been developed for level measuring in ballast, oil, service and fresh water tanks as
well as tanks containing media which are not hostile to titanium.
Intrinsically Safe in Hazardous Areas
The MAS2600 is certified for use with standard transmitter safety barriers or Ex isolation amplifiers
and is Ex ia IIC T4 compliant in accordance with IEC 60079-0, IEC 60079-11 and IEC 60079-26.
Type Approvals
DNV, GL, LRS, MRS, BV, RINA, KRS, ABS, PRS.
CE marked in accordance with EU directive.