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■ Operating principle
The Hanla/Auxitrol's Pressure Type Level Transmitter is for continuously measuring
the liquid level of ballast tank, draft and fuel oil tank in the marine ships
as well as tanks containing media.
The PL3700 is a 2-wire, 4~20mA level transmitter consisting of a transducer and
an amplifier connected via a submersible vented cable.
Pressure change in the front of the diaphragm will bring about a capacitance change
in the cell of the transducer. This change will be transmitted to amplifier as
a change in the electrical signal.
The PL3000 is manufactured in several ranges, and available. Especially the electro
pressure type level transmitter can be connected to C.R.T. display cargo system,
loading computer, indicator, and analogue type indicator to measure the actual
level.
■ Technical Specification
- Output: 4 ... 20mA adjustable
- Accuracy: ±0.30% F.R at 20°C
- Supply voltage: 12 ... 28VDC
- Range :
-Gauge 175mbar to 4 bar
-Absolute 1400mbar to 4bar
- Overpresure :
Gauge 6bar to 25bar
Absolute 10bar to 25bar
- Diaphragm cell : Capacitive transmitter with ceramic diaphragm
- Materials
-Diaphragm : Ceramic
-Sensor Body : Stainless steel 316L
-Amplifier box : Polyester casing
-Special cable : Sheathed polyethylene cable
- Operating temperature range
-Transducer : -40~125°C
-Amplifier : -25~85°C
- Protection class
-Transducer : IP68/submersible
-Amplifier : IP66
- Intrinsic safety : EEx ia IIc T6
(Max. 50m cable between transducer and amplifier box)
- Cable length : 3m in standard (option : up to 50m)
■ Features
- High measuring accuracy
- Excellent stability
- Capacitive transmitter with Ceramic diaphragm
- High temperature stability
- Corrosion resistance
- No hysteresis
- Marine class approval
■ Applications
- Ballast tank remote reading
- Draft remote reading
- Heeling and trim remote reading
- Fuel oil tank remote reading
- Waste waters, wells, locks, rivers etc.
■ Applications
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