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4. Using your HYDR
IM
4.2 Cycle description chart
HYDR
IM
C61wd G4 instrument washer/disinfector
The P3, P4 and P5 disinfection temperature reflects the minimum guaranteed temperature
at any time during disinfection anywhere in the wash chamber. However, the disinfection
temperature is set to be around 93°C, with an upper switch point of the heater at 94°C
and a lower switch point of 92°C.
The disinfection time of P4 can be increased by 1 minute incremental intervals from 1 to
5 minutes. The minimum disinfection time is 1 minute with a minimum A
o
value of 3500.
The minimum A
o
value for disinfection time of 5 minutes is 6000. The final rinse time has to
be set and validated by a technician after installation in the office.
Note
:
ISO 15883-1 describes the time-temperature relationships for moist heat disinfection as follows:
“For a moist heat disinfection process, a particular time at a particular temperature can be expected to have
a predictable lethal effect against a standardized population of organisms. Definition of moist heat disinfection
process may be achieved by means of the A
0
method, which uses knowledge of the lethality of the particular
process at different temperatures to assess the overall lethality of the cycle and express this as the equivalent
exposure time to a specified temperature.”
Cycle
Prewash
Wash
Rinse
Dry
P0 – Machine Cleaning Cycle
No initial draining.
<30ºC (cold)
2-10 minutes
(default 2 minutes)
N/A
<30ºC (cold)
2 minutes
N/A
P1 – Rinse and Hold Cycle
(no disinfection)
- Use to prevent soil from
drying on instruments when they will not be
washed within one hour. Please note that this
cycle does not provide disinfection as it is
only intended as a pre-wash for instruments.
<30ºC (cold)
2-10 minutes
(default 2 minutes)
N/A
30ºC
1 minute
N/A
P2 - Regular Cycle*
(no disinfection)
- Use for moderately soiled
loose instruments. Please note that this cycle
DOES NOT provide disinfection which may
not be acceptable in certain regions and we
advise that you consult your local regulatory
authority before activating.
<30°C (cold)
2 minutes
50°C
5 minutes
60°C
1 minutes
1-25 minutes
(default 10 minutes)
P3 – Heavy Duty Cycle with
disinfection
Use for heavily soiled instruments and
cassettes.
<30ºC (cold)
2-10 minutes
(default 2 minutes)
50ºC
9-15 minutes
90-95 ºC
5 minutes
1-25 minutes
(default 8 minutes)
P4 - custom*
(A
°
between A
°
= 3,500 (rinse) and A
°
= 6,000
<30°C (cold)
2 minutes
50ºC
5-9 minutes
90-95 ºC
1-5 minutes
1-25 minutes
(default 8 minutes)
P5 – Special Cycle
93ºC 10 minutes. Technician access
only. This cycle has a different profile,
there is no draining of until after
disinfection; disinfection is performed
during wash.
N/A
90-95ºC
10 minutes
70ºC
5 minutes
1-25 minutes
(default 8
minutes)
* to be activated by a technician