Mocom B CLASSIC - Page 84

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B CLASSIC / B FUTURA / S CLASSIC - TECHNICAL MANUAL
TECHNICAL DATASHEET
At pressures below 0.40 bar:
- The pressure switch is off.
- The gearmotor power supply contact is closed (red and white wires).
- The safety contact is open (red and black wires).
- The motorised door opening system can be activated.
At pressures above the 0.40 bar limit:
- The pressure switch is on (safety mode).
- The gearmotor power supply contact is open.
- The safety contact is closed and short-circuits the gearmotor control relay.
- The motorised door opening system cannot be activated.
The safety pressure switch is not serviceable; if it needs replacing, proceed as follows:
- Power off the autoclave from the main switch and disconnect the power cord
- Remove the right external cover panel
- Remove the protective cover of the general electronic card, which is held in place by 3 snap locks
- Fully unscrew the locking ring nut of the TEFLON tube at the lower tting of the pressure switch and detach the tube
from the tting
- Disconnect the wiring from the pressure switch; make sure to note the positions of the 3 wires
- Loosen the pressure switch retaining nut and slide the pressure switch off its support
- Fit the new component in the seat in the support and secure with the retaining nut
- Re-connect the pressure switch wiring to the general electronic card; be sure to observe the correct positions of the
wires
- Trim off the end portion of the TEFLON tube so as to eliminate the portion of tube that had been sitting on the tting
- Fit the TEFLON tube onto the tting and secure it in place with the locking ring nut. NOTE: Use great care when
performing this operation; to not overtighten or you will damage the tube.
1. Pressure transducer.
2. Safety pressure switch.
1. Pressure transducer.
2. Electronic card.