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1.5.3 ACT, Automatic Cold Treatment
●ACT operation
When cold treatment is completed during USDA
transport (when the standard period has passed
with the standard pulp temperature kept equal to
or less than the base temperature), ACT function
switches the temperature to the preset temperature
automatically to continue the operation.
To activate ACT, the following 4 items must be set.
1. Cold treatment period CT (day)
2. Maximum pulp temperature US-Max (℃）
3. Set temperature during cold treatment SP (℃ )
4. Set temperature after cold treatment is
completed End-SP (℃ )
ACT operation starts
*1 Timer CT count starts
Cold treatment
US-Max
SP
*1 When all USDA sensor temperature has dropped
lower than US-Max, CT-day starts to count.
*2 When the temperature exceeds US-Max during
cold treatment, which results in data logged, CT
counting is cancelled. When the temperature
dropped lower than US-Max, again, counting
starts to recount cold treatment days (CT day).
*3 After cold treatment is completed, the operation
starts at End-SP setting temperature.
*4 SP and End-SP can be changed during ACT
operation (CT day and US-Max can not be
changed)
*5 The temperature is raised gradually (0.1℃ per
hour) to prevent rapid temperature rise.)
●Access to ACT operation
Access to ※2-6 ACT setting in paragraph 2.3.
Supply air temperature sensor
(Control sensor SS)
USDA sensor temperature
* 4
* 3
End-SP
* 5
*2 * 4
CT
●Indications during ACT operation
During USDA operation, ACT is displayed in the
SET-MODE area.
The SET-MODE area will change to USDA INFO
every 5 seconds, and the current USDA sensor
value will be displayed. (Figure below)
CHILLED
MODULATION
SET POINT
SET- MODE
-1.0
C
USDA
˚
ACT
SUPPLY
- 1.1
˚C
RETURN
1.7
DEF-INT AUTO
℃
HP :
1200kPa
LP :
20kPa
Operation screen
Automatic Cold Treatment
SP
US-Max
End SP
CT Total
ACT screen
●Cancellation of ACT operation
1. Cancellation of ACT operation
1) When ACT is set to "OFF"
2) When F-PTI is completed
3) When Chilled PTI is completed
4) When Frozen PTI is completed
2. Power off (unit off) during ACT operation and
operations when restarting
Stop time
Less than 1 hour
1 hour or more to
less than 48 hours
48 hours or more to
less than 72 hours
72 hours or more ACT cancelled
1-19
CHILLED
MODULATION
SET POINT
USDA Info.
-1.0
USDA1
C
˚
USDA2
SUPPLY
USDA3
-1.1
CTS
˚C
Automatically
RETURN
1.7
DEF - INT AUTO
℃
switches
every 5
HP : 1200kPa
LP :
seconds
When the
or
key is
pressed, the ACT setting status
and the current operating status
can be checked.
- 1.0℃
USDA1
-0.8℃
1.5℃
USDA2
ERROR
2.0℃
USDA2
-0.6℃
CTS
N/A
25Day
Current
-1.0℃
SP
Remain
10Day20Hr
Status
ACTIVE
ACT operation when restarting
ACT continues
CT counting is reset and ACT
restarts
ACT continues with End-SP.
-0.8℃
ERROR
-0.6℃
N/A
20kPa
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