XMT7100 multi input mini digital programmable industrial intelligent kiln autoclave PID temperature controller
1. Product Highlights
Thermocouple: T, R, J, B, S, K, E, Wre3-Wre25.
RTD: Pt100, Cu50.
1 Relay output, 1 SSR controlled output.
Time proportional PID controlled output to either Relay or SSR
Three built-in algorithms that fit most control objects and various applications.
Temperature can be set to display in either Fahrenheit or Celsius degrees.
2. Specifications
Supply voltage: 18-265V AC or DC
Power consumption: < 2 Watts.
Sampling speed: 4/sec.
SSR activated voltage: open circuit: 10V; short circuit: 40mA.
Accuracy: 0.2% of full scale.
LED Display: Red, 0.28 inch
Out of range indication: “EEEE”.
Ambient temperature requirements: 0 to 50 C (32 to 122 F)
Humidity requirement: < 85% RH.
Relay Contact: 220VAC, 3A.
Controller dimensions: 48 x 24 x 75 (mm).
Opening for installation: 44 x 20 (mm)
3. Auto-Tuning
By simply pressing a single button, the built-in artificial intelligent is activated to automatically
calculate and set parameters ( P, I, d, SF, Bb, Ot ) that fit the condition to be controlled.
Figure 41
a) How to sart5and stop the auto-tuning process:
i. To activate auto-tuning, press and hold (>) until “AT” indicator blinks, which indicates autotuning
is in progress. When auto-tuning finishes, the “AT” indicator light turns off. Now newly
calculated PID parameters are stored in memory and will be used by the controller.
ii. To EXIT during the auto-tuning process, press and hold (>) until “AT” indicator turns off.
The previously entered PID parameters values are used by the controller.
4. Connection Terminals (back view).
5. Device Application Example
Figure 9
User wants to control internal temperature (T) of boiler by measuring the surface temperature of the
boiler. A surface mounted, Type K thermocouple is chosen. Boiler surface is to be maintained at 225
deg F. System power supply is AC120V. Installation opening is 44 x 20(mm). A solid state relay
(SSR) with a rating of 25A will be used to control the heating element.
a) Choose XMT-7100 with input from a Type T thermocouple.
b) See Figure 8 for connection diagram.
c) Parameter settings:
(Inty) = t
(Outy) = 2
(CAty) = 0
(PSb) = 0
(Rd) = 1
(CorF) = 1
(filt) = 0
(auto-tuning will be used to set PID parameters)
(SV) = 225 deg F
(AH1) = 325 deg F
(AL1) = 325 deg F
Power up the controller and press (>) to activate auto-tuning. When “AT” stops blinking, new PID
parameters are generated for the system. The controller is in normal operation mode.