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Tuttnauer 3870 EHS (HSG-WS) [27/58] Operations sequence operations sequence vacuum is produced in the chamber down to 12 psig 25 ih
![Tuttnauer 3870 EHS (HSG-WS) [27/58] Operations sequence operations sequence vacuum is produced in the chamber down to 12 psig 25 ih](/views2/1462512/page27/bg1b.png)
25
3.6 Program 6 (6 – Vacuum Leakage Test)
Vacuum is produced in the chamber down to (P1) -12.5 psig (25.5 Ih).
At this stage all the valves close. The autoclave remains in this stage for
5 minutes. This period enables the condition in the chamber to reach
equilibrium. After the 5 minutes have elapsed the printer records the
pressure that is referred to as P2. At this point the test begins and lasts
10 minutes. At the end of the test, the printer records the results. The
pressure at the end of the test is referred to as P3. The rate of change of
P3 to P2 shall not exceed 0.02 psi/min. If P3 to P2 exceeds 0.02 psi/min
the printer will print “FAIL”. If P3 to P2 is within the required value,
the cycle will end normally.
Operations Sequence
♦ Vacuum is produced in the chamber down to -12.5 psig (25.5 Ih).
♦ The vacuum pump stops.
♦ The chamber is allowed to stabilize for 5 minutes then a test is done
to establish P2.
♦ A second test is done after 10 minutes to establish P3 and to
determine the vacuum lost (P3 - P2)
Note: During the test period the autoclave is not heated.
t1 = Approx. 20 minutes
t2 = 5 minutes
t3 = 10 minutes
TIME
PRESSURE (PSIG)
Ambient Pressure
t1
t2
t3
P
3
P
2
P1= -12.5 psig (25.5 Ih)
Содержание
- Electronic table top pre and post vacuum autoclave 1
- Maintenance manual 1
- Models 2540 3870 ehs 1
- Operation 1
- General 6
- General information 8
- Sterilization programs 21
- A second test is done after 10 minutes to establish p3 and to determine the vacuum lost p3 p2 27
- Note during the test period the autoclave is not heated note during the test period the autoclave is not heated 27
- Operations sequence operations sequence vacuum is produced in the chamber down to 12 psig 25 ih 27
- Program 6 6 vacuum leakage test vacuum is produced in the chamber down to p1 12 psig 25 ih at this stage all the valves close the autoclave remains in this stage for 5 minutes this period enables the condition in the chamber to reach equilibrium after the 5 minutes have elapsed the printer records the pressure that is referred to as p2 at this point the test begins and lasts 10 minutes at the end of the test the printer records the results the pressure at the end of the test is referred to as p3 the rate of change of p3 to p2 shall not exceed 0 2 psi min if p3 to p2 exceeds 0 2 psi min the printer will print fail if p3 to p2 is within the required value the cycle will end normally 27
- The chamber is allowed to stabilize for 5 minutes then a test is done to establish p2 27
- The vacuum pump stops 27
- Front panel keyboard 28
- Keyboard keys and display 28
- Flash 273 st by 230 º f j30 14 33
- Wdry 250 exh low temp 25 33
- Wdry 273 ster 273 º f 03 14 30 33
- Printer 36
- Preparation before sterilization 40
- Dental handpiece sterilization 43
- Operation 45
- Maintenance instructions 48
- Troubleshooting for the operator 55
- Accessories 58
- Spare parts list 58
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