HANLA
IMS
CO., LTD.
1610-5 SONGJEONG-DONG GANGSEO-GU BUSAN KOREA
-Tel: 82-51-601-3000
-Fax: 82-51-831-1850
-Email: hanla@hanlaims.co.kr
MT-HGS-100NEW SYSTEM
Rev.9
2010-07-13
Page 5/58
1. INTRODUCTION
The
HGS-100 System
is dedicated to analyze gases in tanks (ballast, cargo, …), void spaces or any possible
dangerous area, in order to detect any gas concentration level over or under safety limits and to monitor
actions as visible and audible alarms. That system complies with
ISGOTT regulation chap. 7.8 and 8.2
The HGS-100 System is a Gas Monitoring based on suction process sampling toward one or more common
detector(s), combined with analog inputs from local gas detectors.
Controlled Gases are :
¾
Hydrocarbon gases
¾
Oxygen
¾
Hydrogen Sulphide
¾
Carbon monoxide
¾
Sulphur dioxide
¾
Nitrogen monoxide
¾
Nitrogen dioxide
¾
Ammonia
¾
Chlorine
¾
Hydrides
¾
Other on request
The sampling points for suction process are to be placed as close as possible to the gas emission source.
However regarding the ballast tanks, they can be placed on tank top even if the gas emission is in tank
bottom, in order to preserve the longest efficient period when ballast tanks are filling up, to ensure the fire
prevention efficiency of the system as fire can be caused by gas coming out on desk from tank top, and
also because gases are pushed toward top by tank filling (IMO Sub-Committee on fire protection).
The local detectors can be placed in pump room, engine room, accommodations, venting ducts, air-
conditioned ducts.