Sirona DAC PROFESSIONAL, Руководство по обслуживанию

Страница: 14 / 66

Maintenance instruction and protocol
DAC Professional
5.13 Check of the electrical connections
⇒
Check to make sure that the cables are tightly connected. Make sure to carefully check
the power-conducting tab connectors (tab-and-receptacle connections) that are listed
below:
CHECKED:
O
Mains switch
O
Mains fuses / holders
O
The proper power-supply voltage on the main board of the electronic control system
O
Output of steam generator (ACOUT1) and power-voltage feed (LL, N) on the CPU-
board.
O
Overheating protection for the steam generator
O
Overheating protection for the Preheating
O
Tighten the screw connections for all rectifier plugs
5.14 Check all hoses inside the autoclave
⇒
Check all hoses on the inside of the device to make sure that they are not damaged, and
that they are in correct position.
⇒
Tighten to finger tightness, and then use an engineer's wrench to turn one-half turn more
(½).
O
Hoses and connections are o.k.
O
Connections tighened
6 Functional check
6.1 Run a program "Vacuum-Test"
⇒
Carry out the Vacuum Test program with a cold autoclave (if possible by the practice
before the maintenance).
⇒
Attach the test printout at the end of this report.
⇒
Read the leak rate from the printout and the time that was used for the evacuation or
note it below.
⇒
Check and evaluate the vacuum-pump performance on the basis of the evacuation time
required for the vacuum test. Maximum time for vacuum evacuation t
max
= 2 min. Actual
time required: ……….. min. If the time is exceeded check the autoclave for leakages,
function of the solenoid valves and the performance of the vacuum pump.
Leak rate = __________________ mbar/min
Time for evacuation= ___________ min
O
O.K.
O
Works done: ________________________________________________________
09/21/2006 12/61 Servicemanual DAC Professional