High Level And Overfill Alarm
According IMO , IBC-Code, 2004 International code for the construction and equipment of ships carrying dangerous chemicals in bulk - MSC.176(79) / MEPC.119(52) , tankers should have ;
Closed Type Level Gauging System
Cargo Tank High Level Alarm
Cargo Tank Overfill Alarm.
Systems are usually indipendent from each other. High Level Alarm generates warning at 95% of tank level and Overfill alarm is taken at 98% of tank level.
Alarm sounds and lights are different color than each other .
Sensors are installed to top of tanks and can be dirrerent types , such as float , electrode or optical.
We test all kind of High and Overfill Alarms in accordance manufacturing design and manufacturer guidance.
Almost all places of tankers are dangerous for explosion. Cargo tanks , all deck , aft , fore , pump room , wings , etc..It's very important to know explosive gas level or Oxygen level in cargo tanks and pump room , similar places onboard.
To prevent explosions and saving human life , tankers are equipped with gas alarm systems with different sensor types. O2 , H2S , LEL , HC4 , etc..
There are fixed gas detection system and portable devices .
All systems , fixed or portable detectors should be calibrated every 3 months at least.
Gas sensors in detectors are electro-chemical effected materials and their sensitivity can be out of whack easily with time.
Control Technic Provides prefessional gas detection calibration services with know how and reference gases.