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Cargo Tank Monitoring system with Local and Remote Display/CMS-MIA-H, SPT-3500

Post Date : June 17
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Item specifics


HS CODE 8901200000


The SPT-3500 LIQUID LEVEL is the newest version of magnetic float level gauge for marine tankers which has been developed based on the long time field experience.
The detection of float position is conducted by HALL IC elements to eliminate problem of contact fusing and/or accuracy failure caused by existing reed switch system.
By this remarkable sensing system, long time stability and maintenance free operation have been achieved.
The measurement is free from the conductivity and/or dielectric constant of the cargo liquids.
Thus SPT-3500 is widely suitable for measurement and control or cargo liquid levels at crude oil carriers, coaster tankers, product carriers chemical carrier, etc.
LEVEL ALARM SYSTEM is perfectly separated from level and temperature monitoring system electrically, and the independent level alarm sensor is separated from level and temp. sensor too.
When the liquid level reaches a set point, the reed switch is actuated by magnetic float. This signal is connected to annunciator card through safety barrier. At the same time, we can get audible and visible alarm on the main control panel as well as external alarm on the bridge top.
The 95% of volume is normally for high alarm, and 98% of volume is normally for overfill alarm.

System Construction

Level Sensor
Safty Barrier
Main Control Panel
Cargo Monitoring System/
Intrinsically safe
Level and temp.
Local Gauge
DIR-M1600 II
Independent leve
Alarm system
- High level alarm
- Overfill alarm
Level Switch
Alarm Module


  • Compact and cost saving design.
  • HALL IC Elements, pure electric position detection:
    -Grade up from existing reed switch system.
    -Highly reliable and stable for long time operation.
    -Highly precision for operation.
  • 3 Point of temp. measurement and transmission.
  • 16 Bit CPU Data processing:
    -Intelligent signal processing unit with 16 bit micro processor achieves high reliability and high function such as self-diagnosis and setting of measuring liquid density.
  • Separatable LCD indicator.
    -LCD indicator may be separated from the sensor.
  • 2 Core cable data transmission and easy wiring:
    -Liquid level and maximum 3point temp. data are sent to CCR by serial BCD signal through 2 core cable only including power supply to the deck.
  • Full line up of CCR indication system:
    -Full line up from individual indicator to computer based system is ready to meet for requirements.


This system is used for monitoring for level, alarm and temperature of the liquid in cargo tanks.

Technical specification for system

Detection unit
Alarm - by magnetic float and reed switch type.
Level - by magnetic float and HALL IC element.
Temp. - by PT-1000RTD.
Alarm - ±5m/m on level rise or fall
Level - every 10mm(standart), every 5mm(option)
Temp. - ±1.0°C
Measuring range
Alarm -95%, 98% of volume
Level - Max. 40m
Temp. - -25~150°C
Alarm - IP56 over and intrinsically safety EEx ia II C T6
Level and temp. - IP56 over and intrinsically safety EEx ia II C T4
By selector type LCD 6digit indication
1) Level - 5m/m unit(0~39999m/m)
2) Temp. (U : upper)°C or °F unit, (M : middle)°C or °F unit, (L : lower)°C or °F unit
Digital serial code pulse (2wire system including power supply, exclusive receiving unit is required)
External alarm
High and overfill alarm on the bridge top.
Power source
AC 110/220V, 60HZ/Back up source : DC24V
Specific gravity
Min. 0.65~1.5
JIS 5K 150A FF, 5K 200A FF
Conduit connection
JIS 5K 32A
Amb. temperature
Housing -SUS304, Float/Guide pipe - SUS316
Indicator housing : SUS304


  • Indication - Individual tank LED indicator
  • Tank selector and temp. element selector key are provided.
  • Level : 0~39999m/m(ullage or sounding selectable)
  • Level status : 2 digital
  • Alarm setting and monitoring :
    1) 4 level alarms(HH, H, L, LL)for 16tanks.
    2) 2 temp. alarms(H, L)for each element of tanks(TU, TM, TL)
    2points x 3elements x 16tanks=96points
  • Output : RS-232C port for indicator RS-232C port for loading computer 4 points of alarm contact for :
    a) common for all temp. alarms
    b) common for all level alarms

Cargo Monitoring Panel

The cargo monitoring panel will be designed and arranged for level alarm, high temp. alarm, and temp./level measurement based on the number of tanks and tank lovation etc.

The cargo tank monitoring panel gives audible and visible alarm as well as carto tank level, temp. Indication on the minic board, and also external alarm for high and high-high level shall be provided by cargo monitoring panel.

Company Related ProductsView the Seller's Products
I.M.C system with stand alone TA840 Radar for Cargo Tank Monitoring System

I.M.C system with stand alone TA840 Radar for Cargo Tank Monitoring System

I.M.C system with stand alone TA840 Radar for Cargo Tank Monitoring System

HS CODE 8428900000


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)



  • 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.


  • 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


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



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



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



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
Detail more >>
Oil Detector on the Tank

Oil Detector on the Tank

Oil Detector on the Tank

Oil Detector on the Tank


Boiler feed filter tank have a inspection chamber or devide area in tank to accumulate oil when oil contamination on boiler water.
When incoming oil contaminated water in inspection chamber, the feed water only go out to feed filter tank and oil with be accumulate in inspection chamber until drainage.
When the normal conditions, the end part of electrode will be in water level always.
But the water contaminate oil that the oil is accumulate top level in inspection chamber, the electrode will be in oil level instead of water level. The oil detector will activate alarm.
After drain oil in inspection chamber, the oil detector return to normal condition.

Technical specification

Type : Capacitive oil detector
Power supply : AC 110/220V
Output : Relay contact (SPDT)
Operating pressure : 10bar
Max. Temp. : 100 °C
Protection : IP66
Conn. Size : G 1-1/2"

Detail more >>
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