HANLA
IMS
CO., LTD.
1610-5 SONGJEONG-DONG GANGSEO-GU BUSAN KOREA
-Tel: 82-51-601-3000
-Fax: 82-51-831-1850
-Email: [email protected]
MT-HGS-100NEW SYSTEM
Rev.9
2010-07-13
Page 6/58
1.1. Operating Principle
The hydrocarbon gas detector is an essential system in the cargo oil tanker, the gas carrier, the chemical
carrier. The HGS-100 System is for monitoring the gas concentration in the ballast tank and void space
caused by mechanical damage like crack. Continuous monitoring will occur the alarm when the gas
concentration is increased over than preset value and show the visible and audible alarm.
HGS-100 covers the max. 48 channels for cargo oil tanker. The PART1 of this system is for 1 to 40 channels
and used to monitor the gas of the ballast tanks. The PART2 is for monitoring the gas concentration of the
pump room.
Each PART uses the only one sensor. To monitor many sensing points, sequential sampling the gas through
the line will be economic scheme. Generally, in the ballast tanks, the Hydrocarbon(HC) gas is monitored. .
Infra-red type HC sensor is used for best reliability and maintenance-free. And, in the pump room, not only
the hydrocarbon, but also the Oxygen(O
2
), Hydrogen sulfide(H
2
S) gases are monitored too. Type of these
sensors are different that of Ballast tanker’s one. These are solid type sensors.
Type, number, gas-type of these sensors can be changed by user’s demand. The analog signal is converted
to digital signal by A/D converter of Analyzing board.
The microprocessor of HGS-100 system control the 2 pumps, 52 solenoid valves, filter, graphic LCD displays
the gas concentration, alarm, flow, leakage, and status of individual tanks.
110~240 Vac 50/60Hz
RS-485
RS-485
Main
Remote Repeater
To Monitoring System
Exhaust 1
Safety Area
Hazardous Area
Purge Air supply
Calibration gas
Ballast Tank
Top Tank Fitting
Non-Return Valve for wet
suction point
EEx d Flame Arrestor
Shut Off valves
Up to 8 suction channels
Up to 40 suction channels
(Infra-red, Hydrocarbon)
Dry Contact outputs
Void Space
Bulk Head
Penetration
Void Space Fitting
Exhaust 2
Flow Regulating
Needle Valve
Bulk Head
Penetration
(Outdoor)
Pump room Fitting
Pump Room
(Hydrocarbon, Hydrogen Sulphide, Oxygen)
(Gas, System Alarm)
Drain
