VRCS for Offshore Use / Level Measuring System Control air supplied from the air supply unit is sent to the air purge unit in each tank and comes out of the purge mouth at the tip as bubbles via an ori ce in the unit. At this time, the pressure P in the purge mouth is equal to the value obtained by multiplying the liquid level gauge height H by the speci c gravity of the liquid γ. This is a measurement method that remotely indicates pressure measured at a depth in a pipe on an indicator. •Since no electrical equipment is used in the vicinity of each tank, explosion-proo ng considerations are not required. •Easy to understand and easy to maintain and inspect because of the application of simple principles. •High service life due to mechanical principle. •The lineup includes a all-pneumatic type and a pneumatic-to-electric conversion type. Float Magnet Guidepipe Reed Switch In principle, this type opens and closes reed switches by magnetic force provided inside the oat. Mounting multiple reed switches inside the guidepipe results in conversion to sequential electrical signals. A single-point reed switch type for bilge detection, fuel tank high liquid level alarm, etc. can also be supported. •Highly accurate. •Mainly used for fuel tanks. •Can be used for cargo tanks of oil tankers and chemical tankers. JOINT BOX AIR SUPPLY LINE AIR PURGE PIPE TANK (WBT/FWT/ DWT/FOT/ DOT/MGOT) PRESSURE-ELECTRIC SENSOR AIR SIGNAL LINE MAGNETIC FLOAT SENSOR FLOAT TYPE (ADDITIONAL TANK:COT) GAUGE BOARD / CONTROL PANEL AIR PURGE UNIT ELECTRIC SIGNAL ELECTRIC SIGNAL LEVEL MEASURING SYSTEM NAKAKITA LEVEL GAUGE m This system detects the liquid level of water ballast tanks (W.B.T.), fresh water tanks (F.W.T./D.W.T.), and fuel oil tanks (F.O.T./D.O.T./M.G.O.T.) on ships and remotely indicates these liquid levels. Draft measurement is also possible. Features Features •Capable of measuring liquid levels in tanks up to 35 m high. •Capable of high and low liquid level alarms as well as indication. •Remote indication enables streamlining of loading and unloading operations with a small number of workers. •Supports speci c gravity correction and trim/heel correction (depending on the type of equipment). 13 NAKAKITA VRCS PRODUCT CATALOG
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