Crouzet Pneumatic Timer

Adjustable timers, designed for pneumatic circuits.
When a control signal "a" is emitted, the tank starts to fill up through the lower limiter.
When the scheduled time has elapsed, the relay is activated and output "o" is engaged.
The timer is not re-engaged whilst the control signal "a" is emitted.
Mounts onto base, stock number 285-8378.