4 Channel Touch Screen PID Temperature Controller

4.3'' Touch screen 4 channel temperature controller with WIFI and Ethernet port, accessible from PC and cell phone

-Key features

-Maximum 4 channel, you can configure it as 1~4 channel depends on your application
-4.3 inch TFT display, fully touch screen
-Support thermocouple input(K,E,J,N,Wu/Re3-25,S,T,R,B), input field configurable
-Relay/SSR Drive/4-20mA,output optional,specify output when order
-Very easy to configure the controller compare with classic controller
-100~240Vac supply 50/60HZ
-With USB port, Ethernet port and antenna(for WIFI connection)
-Controller can be connected to internet via Ethernet port or WIFI hotspot
-With Cell phone APP(available on both Android and IOS system), User can remotely access and control the controller from cell phone and PC -With basic data logging feature, the controller records process value of each channel.
-Access protection for safety reason
-Parameter restore feature, with just one click, all parameters will be restored to factory default, this is a very helpful features especially when    customer is not very familiar with the product
-Run/Stop the controller at any time you want(R/S feature)
-PID control mode or ON/OFF control mode configurable(SET P=0) for ON/OFF control mode
-Auto/manaul control bumpless transfer, output can be configured as 0%~100% under manual control mode
-Fahrenheit Celsius display switch Heating or cooling control mode selectable

-Intuitive interface

The primary display looks like above image, breakdown the dipslay into 4 sections, section 1, section 2, timer 1 and timer 2
Section 1 is the PID control loop, which displays the process value and setting value and various status indication, like AU1,AU3, AU4, AU5 relay energization.
Section 2 is display for safety Limit Controller purpose with a latching relay output(AU2), and a cross comparison between the reading pick up from sensor 1 and sensor 2, once the undesirable limit reached, the AU2 relay will be triggered and it requires a manual reset.
Timer 1 is the count down timer for the temperature holding time range,  when PV reach to SV, the timer will engage automatically and count down process begin
Timer 2 is the count down timer for the circulation fan, for most of oven, there will be significant heat inside the chamber even after the heater stops to work, in this case, it is essential to keep the circulation fan running for certain period of time, the circulation fan kicks-in as long as you hit the RUN button and starts the heating process, but it won't stop at the point when program ends, instead, it will keep running for some time, when heating terminated, the count down timer for circulation fan starts to ticking down and after timer elapsed ,then the fan will be shut down.