JJ-CCR ApS 2017
www.JJ-CCR.com
2017 JJ-CCR ApS – 2.00 / Revision 06
84
6.21.1
SRI Petrel
(Bus Devices)
The Petrel is not a peripheral board and
there are no options avialable.
6.21.2
SRI SOLO
(Bus Devices)
On the SOLO board (solenoid and oxygen
controller) the Solenoid Speed setting can
be adjusted.
Solenoid speed setting can be set to either the 1 second or 5 second PID control algorithm. This feature
is comparable with the “slow” and “fast” solenoid setting, which was available on the classic JJ-CCR
(Shearwater Predator based controller). The setting is edited on the controller, but are stored in the SOLO
board.
The 5 second PID control algorithm is the default setting. With the 1 second PID control the PPO2 can be
more precisely maintained but the solenoid is operational more often in order to constantly supply small
volumes of oxygen. This results in much higher use of the battery. Many divers also find the constant op-
erating noise of the solenoid annoying.
