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 Model Number |
HANLA-Auxitrol |
■ General
The I.M.C system continuously measures liquid level and temperature, as well as
inert gas pressure in the cargo tanks. This system is based on a DISTRIBUTED DATA
PROCESSING ARCHITECTURE. using the stand alone TA840 contactless level transmitter
installed on the top of each tank, and connected to the TA840-I safety module
located in the cargo control room. The associated inert gas pressure and liquid
temperature information is transmitter to the cargo control room by means of the
pressure and temp. sensor directly connected to the TA840.
■ Principle of Operation
The TA840 is a stand alone RADAR TYPE level transmitter using a frequency modulated
continuous wave (FMCW) electromagnetic signal to measure the distance between
its antenna and the cargo tank content surface (ullage).
The difference between the emitted and reflected FMCW signals is directly proportional
to the ullage. An adapted data processing is then able to be calculated. The
micro wave signal issued from the antenna is directly processed by the dedicated
processor inside the TA840. so that the output signal sent to the cargo control
room is directly the digital value in MM of the measured ullage. RS485 digital
link is used between each TA840 and the TA840-I safety module in the cargo control
room.
■ I.M.C - Innovative Measuring Concept (I.M.C)
DEVELOPED IN COOPERATION WITH THOMSON-CSF
■ Features
- The principle of the TA840 RADAR SENSOR is the utilization of an intrinsically
safe low-power processor unit which analyses the antenna signal and converts
the information into digital values.
- The TA840 RADAR SENSOR is a totally sealed unit with a standard RS485 field
bus output signal.
- For simplicity of installation the TA840 RADAR SENSOR requires only two
cable inputs and is connected to a safety module which includes individual
channel zener barriers.
- The TA840 RADAR SENSOR incorporates and auto-control facility for continuous
performance monitoring.
- The TA840 RADAR SENSOR is provided with a simple pivot hinge arrangement
to enable the cleaning of the antenna emission face without needing separate
cleaning hatches.
■ Advantage
- Simple and quick installation.
- Reduced cabling cost with integrated temp. and I.G.pressure measurement.
- Easy commissioning through "COMMINC" mate software with automatic
radar self test at power up.
- Standardized communication protocol RS485 data link for direct connection
with:
ECOS, Norcontrol, Praxis, Samsung, etc.
- Integration of other supplier device.
- Self-diagnostic and remote configuring automatic antenna fouling detection.
- Proven accuracy: ±1mm
| TA840 RADAR MICROWAVE LEVEL
TRANSMITTER |
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Description
The TA840 Radar microwave level measurement system is based on the utilization
of smart sensor. They include microprocessors performing signal processing
and offer, in addition to transmitting tank level, pressure, and temperature
data to the central monitoring system, new capabilities such as self-diagnostics,
self-monitoring and remote configuring.
Technical data
- Maximum pressure : 1 bar
- Accuracy : ±1mm
- Operation temperature : -40°C to +70°C
- Storage temperature : -40°C to +85°C
- Product temperature : up to 180°C
- Protocol : Modbus(RTU)
- Range : 0.8 to 30mm(others available on request)
- Intrinsically safety approval : Ex ia II B T4 on request : EEx ia
II C T4
- Protection class : IP67(1m immersion), IP66(hose-proof)
- Antenna aperture angle : 10°
- Process conn : ISO PN10 DN250
- Material : SS316L and PTFE
- Weight : 18Kg
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| INERT GAS PRESSURE TRANSMITTER
T901-P01A |
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Description
The pressure transmitter T901-P01A is especially designed to meet liquid
cargo monitoring requirements.
Technical data
- 3-wire absolute transmitter
- Range : 800~2000mbar
- Accuracy : 1% of measured scale
- Output : 0.5 to 2.5V DC
- Allowable overpressure : 4000mbar
- Power supply : 5V DC
- Intrinsically safe : EEx ia II C T6
- Storage temperature : -55°C to +85°C
- Connecting unit operating temperature : -20°C to +70°C
- Protection class : IP67
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| TEMPERATURE TRANSMITTER
T901-Px0PI |
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Description
The temperature transmitter T901-Px0PI is specially designed to meet
liquid cargo monitoring requirements.
Technical data
- Temperature senson : 3-wires 100ohm at 0°C
- Accuracy : IEC 751 classB
- Protection class : IP67
- Rang : -20°C to +120°C(other scales on requiest)
- Intrinsically safe : EEx ia II C T6
- Storage temperature : -55°C to 85°C
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| SAFETY MODULE TA 840-I |
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Description
The TA840-I safety module consists of a 19" rack into which the
radar power supply boards are inserted. Each rack has 8 available slots.
Maximum configuration is 7 racks(power supply of 56 radars).
The master rack equipped with a CPU, enables output of 2 independent
communication ports. The RS232 port on the front face enables the rack
to be programmed during commissioning. The radars are configured directly
on each power supply board via an RS232 port communication with the radar
connected to the board in question.
Technical data
- Intrinsically safe EEx is II B LVIE 95.D6118X SYST 95.D6147X
- I/O port : -RS232 on front face, -RS485 or RS232 according to EN 50020
on rear face
- Operating temperature : 0 to +55°C
- Power supply : 110 or 220V AC/50~60Hz
- Consumption : 60VA per rack(equipped with 8 safety modules)
- Terminal capacity : 2.5mm2
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