Mocom B CLASSIC - Page 34

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B CLASSIC / B FUTURA / S CLASSIC - TECHNICAL MANUAL
ALARMS
LCD A 356 Indication Alarm description Effect / Symptom
DISCHARGE TIMEOUT
Second pressure drop from 1.00
to 0.10 bar not completed within
timeout.
Second pressure discharge from 1.00 to 0.10 bar
not completed within timeout.
Possible causes / Checks Solution
Problem with chamber
drain lter – check
component.
Check and clean chamber lter.
Observe the indications provided in the User Manual.
Problem with discharge
solenoid valves EV1 – EV3
– check components.
Check that EV1 opens properly, not powered on.
Check that EV3 receives proper power supply and opens properly.
Check solenoid valve seat and cursor of EV1 and EV3.
MANIFOLD - see datasheet ST02.
LCD A 256 Indication Alarm description Effect / Symptom
PV3 TIMEOUT
Third vacuum pulse from 0.00
to –0.80 bar not achieved within
timeout.
Third pre-vacuum not completed within timeout.
Possible causes / Checks Solution
Problem with vacuum
pump activation – check
component.
Conrm vacuum pump start-up.
To perform this check, it might be a good idea to activate the vacuum pump from menu
SERVICE/COMPONENT TEST/OTHER COMPONENTS – SOLENOID VALVES SQ
14, that lets you detect air suction from the chamber.
Measure pump power supply voltage.
Change vacuum pump.
Problem with discharge
solenoid valves EV1 – EV3
– check components.
Problem with changeover
solenoid valve EV4-check
components.
Check that EV1 opens properly, not powered on.
Check that EV3 receives proper power supply and opens properly.
Check solenoid valve seat and cursor of EV1 and EV3.
Check for proper power supply to EV4, with direct discharge/vacuum pump connection
changeover.
MANIFOLD - see datasheet ST02.
Problem with heat
exchanger – check device.
Problem with autoclave
position.
Check that exchanger grid and ns are clean.
Conrm activation of cooling fans.
Check free space at rear end to let hot air out.
Check that air suction lter under autoclave is clean.
Check autoclave position on supporting surface, it must ensure that chamber is at
proper angle towards bottom.
LCD A 257 Indication Alarm description Effect / Symptom
PP3 TIMEOUT
Third pressure pulse
did not reach 0.00 bar
within timeout.
Third pressure rise from –0.80 to 0.00 bar not completed
within timeout time.
Possible causes / Checks Solution
Problem with water
injection pump of steam
generator – check device.
Problem with steam
generator clogging – check
device.
Check feed tank lter and water injection pump inlet lter.
Check for proper activation of water pump and check that EV6 opens.
To perform this check, it might be a good idea to activate vacuum pump and EV6 from
menu SERVICE/COMPONENT TEST/OTHER COMPONENTS – SQ 17, that lets you
detect water owing through the generator and into the chamber.
Identify leaks on tubes connecting water pump and generator.
Change vibration pump.
Steam generator maintenance – see datasheet ST01.
Problem with generator
warm-up – check device.
Check and reset safety thermostat if needed.
Check steam generator heating element.
See ST01 – steam generator datasheet.
Problem with manifold
solenoid valve sealing –
check components.
Check EV1 for proper power supply and sealing
Check EV3 for proper sealing.
MANIFOLD - see datasheet ST02.