8
¾
To set Retransmission to positive/negative slopes (a Retransmission board must be installed first): In
【
Initial Setting Mode
】
set
the
parameter, the last digit (Y) of xxxY indicates when Y=0 positive slope; when Y=1 negative slope.
¾
To adjust the lower limit of Retransmission:
a
、
Make sure the slope of Retransmission is positive.
b
、
Set lower limit value larger than the display value: In
【
Initial Setting Mode
】
set the value in
larger than the display value
(PV).
c
、
Input the analog value to meter, check the meter and adjust the analog input value: In
【
Regulation Mode
】
, enter the new value
into
. For example, if the range is 4~20mA, the new value will be 4mA.
¾
To adjust the upper limit Retransmission:
a
、
Make sure the slope of Retransmission is positive.
b
、
Set upper limit value smaller than the display value: In
【
Initial Setting Mode
】
set the value in
smaller than the display
value (PV).
d
、
Input the analog value to meter,check the meter and adjust the analog input value: In
【
Regulation Mode
】
, enter the new value
into
. For example, if the range is 4~20mA, the new value will be 4mA.
Check the Firmware Version and Output Type
When the temperature controller is ON, the PV and SV display will shows firmware version, output type and accessory functions in first 3
seconds.
¾
PV (first 3 digits) indicates the firmware version. Ex: 110 indicates firmware version V1.10.
¾
PV
(4
th
digit) indicates the function of accessory 1.
C: RS485 Communication E: EVENT3 Input
¾
SV (frist 2 digits) indicates the output type of OUT1 and OUT2.
N: No function V: Voltage pulse output R: Relay output C: Current output
L: Linear voltage output S: SSR output
¾
SV
(3
rd
digit) indicates the function of accessory 2.
N: No function C: CT measure E: EVENT1 input R: REMOTE input
¾
SV
(4
th
digit) indicates the function of accessory 3.
N: No function C: CT measure E: EVENT2 input R: RETRANSMISSION output
Selection for Heating/Cooling/Alarm/Dual Loop Output Control
DT3 series offers 1 set of Output Control (OUT1) that is built-in internally and 2 sets of Alarm Output(ALARM1
及
ALARM2). User can also
purchase a 2
nd
set of Output Control (OUT2) or a 3
rd
set of Alarm Output (ALARM3).
z
Using 1 set of Output Control :
In
【
Initial Setting Mode
】
, sets
to Heating (H1) or Cooling(C1) mode.
z
Using
2
nd
set of Output Control:
¾
When the 2
nd
set of output control (OUT2) is used as a 3
rd
set of arlarm (ALARM3), set
to H Alarm 3(H1A2) or
C Alarm 3(C1A2) in
【
Initial Setting Mode
】
.
OUT2 output types in relay, voltage pulse, analog current, linear voltage and SSR output can all be used for ALARM ON-OFF. For
example, OUT2 is set to analog current output. It outputs 4mA when alarm is OFF and outputs 20mA when alarm is ON.
¾
When the 2
nd
set of output control (OUT2) is used as dual output control, set
to heating (H1H2); cooling (C1C2);
Heating/Cooling(H1C2) or Cooling/Heating (C1H2) control mode in
【
Initial Setting Mode
】
.
The Dead Band parameter
is automatically enabled when the temperature controller is in dual output control. As shown
in the diagram follow. The purpose of Dead Band function is to reduce the energy wastage of frequent heating/cooling actions. For
example, if SV = 100 degree and
= 2.0, there will be no output when the temperature is between 99~101°C..
Output of
when in ON-OFF control mode (Ctrl=ON-OFF control):
Adjust heating hysteresis
Adjust cooling hysteresis
Hea
ting
Cooling
Set Point
