needed parameter value. Again press
key over 4 seconds, return to the standard display mode. (If not press any
key over 1 minute, return to the standard display mode automatically.)
Following table lists the function parameters
Prompt
Symbol
Name
Setting
Range
Illustration
Beginning
Value
Setting of Alarm1
0
…
Range
℃
Setting of Alarm1
，
Insensitive interval
of alarm is equal to a constant value
0.4
50 or 50.0
AL1
Setting of Alarm 2
0
…
Range
℃
Setting of Alarm 2
，
Insensitive interval
of alarm is equal to a constant value
0.4
50 or50.0
AL2
Proportional band
(Heating Side
）
0
…
300
℃
Proportional Control: The more the
value of P, the less the proportional
action and the less the system gain;
only acting on the heating side. (P=0 is
ON/OFF Control)
30or 30.0
P
Integral Time
0
…
999
Seconds
Integral Time: The more the value of I,
the less the Integral action
I=0 is PD Control
，
Ar=
（
Remained
Error/P)
×
100
240
I
Differential Time
0
…
999
seconds
Differential time: The more the Value of
the more the differential action, which
able to overcome overshoot (D=0 is
Control)
60
d
Overshoot restrain
(Proportion re-setting)
(Insensitive interval of
ON/OFF Control)
0
～
100%
Used to restrain Overshoot (Ar is set
to 1.5
～
2 times of the output empty
ratio in the steady state of the system)
100
Ar
Control period
（
Heating Side
）
1
…
100
Seconds
When the relay output
20s,S
≮
SR and
Si-controlled switch transwitch
2s,
≮
continuous output T is equal to
1s, only acting on heating side
20
T
Offset of the Process
Value
-10
（
-10.0
）～
10
（
10.0
）
℃
Using for correct the measurement
error caused by the sensor and the
compensate line of the thermocouple
0 or 0.0
Pb
coded lock
000
，
001
，
002
000
：
All parameters can be updated
001
：
Only the Set PointValue can be
updated
002
：
All parameters cannot be
updated.
000
LCK
Notice: Change of each function parameter in the table may alter the control effect of the system.
4.3 The function of the controller Auto-tuning
After pressing
key 8 seconds the lamp of AT flashes and the auto-tuning process starts; after the end of
auto-tuning the lamp of AT world be turned out. Then a set of PID parameters can be got automatically for quickly
increasing the process temperature. The controller operates according to this set of PID parameters.
After pressing
key 8 seconds the lamp of AT flashes and the auto-tuning press starts; after the end of
auto-tuning the lamp of AT be turned out. A set of PID parameters can be got automatically for overcoming
temperature overshoot. The controller operates according to this set of PID parameters.
4.4 The sketch map of the function of the controller Auto-tuning
W W
SP SP
0.8SP
t
t
AT start AT end AT start AT end
Press
key to start auto-tuning Press
key to start auto-tuning
This controller is under warranty for 12 months since the day of purchase (the warranty only stands if the problem is
caused by the malfunction due to manufacturing). Any repairment for damages caused by improper use of the controller will
be charged. The controller is provided with lifetime maintenance and repair on cost.
Please keep the controller in a dry place with air and NO corrosive gas.
