thermocouple thermometer - A18

Features:
temperature controller Industry

Advance microcontroller and firmware design, improved noise immunity
Simple and accurate Self Tuning. With fuzzy-logic-controller, derive the PID setting with a Self-Tuning run.
Each Controller is programmed for the exact INPUT type (specified during order) before delivery. Simplified set up. Just perform a Self Tuning, and ready for operation.
Modular firmware construction, improve manufacturing quality, easy to service and maintain. (example, Relay output module can be replaced, withoutaffecting the controller settings. )
Quick delivery, industrial product, provide technical support, after sales services, affordable.
12 months global warrantee against manufacturing defects.
Can supply heater and sensor as a kit to meet your temperature controls needs.

Specification's:

• Range: K (0-1300C), S (0-1700C), R (0-1650C), E (0-800C), J (0-1000C), PT100 (-200-600C), Customize voltage and Current.
• Accuracy: 0.3%± 1 digit(LSB)
• Measuring Resolution: 0.1C/ 1 C .
• Power: Universal 85-264Vac 45-65Hz .
• Power Consumption: < 5 W .
• Operating environment: 0-50C, RH <85% .
• Control Output Options .
• Relay Contacts: AC220V/5A resistive load.
• DC voltage: ForSSR trigger, >12V. 20mA.

Introduce:
Self Tuning Operation:
One of the key feature of A18 series is, by performing the Self Tuning, the PID parameters are set by the internal Fuzzy Logic computer. Therefore, user with little experiences in PID set up, can easily operate the A18 series, without any delay or problem.
The fuzzy logic computer is proven in many application's and able to determine the PIDwith just one Self Tuning process. The controller "learn" during the self tune process, its the characteristic of temperature rise and changes, and adjust the PID parameters automatically to ensure the temperature rise with minimum overshot at reasonable ramp up time.

FRONT PANEL AND OPERATION
Basal display status:

When power on, the upper display window of the instrument shows the process value (PV), and the lower window shows the set point (SV). This status is called basal display status. When the input signal is out of the measurable range (for example, the thermocouple or RTD circuit is break, or input specification sets wrong), the upper display window will alternately display “orAL” and the high limit or the low limit of PV, and the instrument will
automatically stop output.

Artificial Intelligence control and auto tuning

When A18 control method is chosen, the control parameters can be obtained by running auto-tuning. At the first time of running auto-tuning, in basic display status, press“<<" for 2 seconds, “At” will flash at lower display window and the instrument executes on-off control. After 2 to 3 cycles of on-off action, the instrument will obtain the values of PID control parameters. If you want to escape from auto tuning status, press“<<" and hold for about 2 seconds until the "At" flash stops. Depending on the system, the time of auto tuning can be several seconds to several hours. After the auto tuning finishes, the parameter “CTRL” automatically changes to 3 (the initial value is 1) or 4, and then user can’t active auto tuning by pressing “<<"for 2 seconds. If user wants to run auto tuning again, setting parameter "CTRL” to 2. (Refer to the description of parameter “CTRL”)
Note 1: Before running auto-tuning, set point should be set to an often-used value or middle value first, and then start auto-tuning. Generally, for application with 10%~80% time on heating can obtain satisfying auto-tuning result. If the heating time is not in the range of 10~80%, the auto-tuning will run for a long time and can’t get satisfying result.
Raising set point for heating time less than 10% or decreasing set point for heating time greater than 80% can improve auto-tuning result.
Note 2: Don’t modify the set point during auto-tuning. It may affect the precision of auto-tuning.
Note 3: After auto-tuning finishes, generally, the temperature rising has a little over-shoot (about 1~3 ). It is because °C considering that the transducer is often placed between the heater and heated material, and a little over-shoot can shorten the time of rising to set point and save Power. (Generally, the temperature of transducer can be raised quickly than that of heated material)

Details photo of temperature controller: