Marine Breathing Apparatus
Marine breathing apparatus is an open-circuit positive pressure self-contained breathing apparatus. This self-contained breating respirator is used by fire-fighters and emergency rescuers. There are many different types of the breathing apparatus,such as RHZK5/30(A/B/C); RHZK6/30(A/B/C); RHZK6.8/30(A/B/C).
Overview
Approval standard:
Resolution MSC.399(91) Amendments to the internationl code for fire safety systems (FSS CODE).
Certifiacte: CCS or EC
Type and configuration：
RHZK5/30A RHZK6/30A RHZK6.8/30A, include:Electronic Alarm Pressure Gauge(EAPG)
RHZK5/30B RHZK6/30B RHZK6.8/30B, include:EAPG+Bone Conduction Communication Unit (BBCU)
RHZK5/30C RHZK6/30C RHZK6.8/30C, include:EAPG+HUD+BCCU
Electronic Alarm Pressure Gauge(EAPG)
It combines a pointer-type pressure gauge and the electronic audible and visual alarm into one unit:when the cylinder pressure drops to 5.5 + 0. 5MPa, the electronic audible-visual alarm sends out alarming buzzes greater than 90dB, and also emits a white flashing light and red flashing light signal. Compared with the traditional pneumatic whistle alarm, the electronic audible-visual alarm has two alarming features:sound alarm and flicker alarm to ensure the respirator user and the supervisor to obtain the air residual pressure information and alarming signal through a variety of ways, so as to effectively ensure the breathing and security of the user.
Electronic Audible and visual Alarm
When the cylinder pressure is greater than 10MPa,the air pressure indicator light turns green in constant status.
When the cylinder pressure is greater than 6MPa but less than 10MPa,the pressure indicator light turns yellow in constant status.
When the cylinder pressure is less than 6MPa,the pressure indicator light turns red in flashing status.
State flash during pause.
HUD
1. Air pressure indicator
A. When the cylinder pressure is greater than 10MPa, the air pressure indicator light turns dreen in constant status;
B.When the cylinder pressure is greater than 6MPa but less than 10MPa, the pressure indicator light turns yellow in constant status;
C.When the cylinder pressure is less than 6MPa, the pressure indicator light turns red in flashing status.
2. Power indicator light
When the battery is only 20% of the full power, the under voltage indicator light(yellow) turns on in constant status.
Bone Conduction Communication Unit (BCCU)
BCCU is a device of the wearer's dialogue voice transmission to the intercom, and the other person's calls to the headset.
During normal use of a respirator, it is difficult to clearly transmit the sound outside with the barrier of mask and the sound of breathing airflow generated within the mask, which is interfering transmission speech sounds. BCCU is not limited to these external factors, for the vibration signal of voice can be collected and sound signal outside through inter-phone PTT button design as large buttons, even if Heavy Wear protective gloves can operate, easy to use and operate; Headphones are designed to be installed next to the ear, eliminating the sound distance between the ears and the waist, greatly reduce the impact of environmental noise on hearing and call quality. When connected to the wired inter-phone, same operation with the itself, that press the PTT button on the BCCU, to communicate with other person, and release the button, to accept other's speech.
