Digital Temperature Controller Mono-Phase Over Zero Trigger Pid Adjustment with 30 Sects Procedure Control (XMT-818AP)

Prod Model:	XMT-818AP
Size:	160*80

Product Description

Specifications

Digital temperature controller
Display precision prior to 0.2FS
Input signal: All signal
Power: AC85-242V
Control: ON/OFF, PID

XMT*808 series intelligence temperature controller uses nowadays the most advanced monolithic microcomputer as mainframe,reduce peripheral assembly,and improve the reliability;It adopts the control method of vague theory combined with traditional PID control, and make the control process with the advantage of rapid response,small overshoot,high steady state precision. It is intelligence temperature controller with the function of high performance,high reliability,complete input,its function is suitable to all the occasion needed temperature measurement and control,also be compatible with other industrial parameter measurement and control.

It adopts modular structure,further improve overall performance;The meter is operated with 4-keys,dual row 4-LED display for displaying the measurement value and set value or measurement value and output value, with manual /automatic switch and setting itself function;with characteristic of small volume,low power consumption,convenient operation,steady and reliable of running;They are now widely used for the automatic control system over the area of machinery, chemical, ceramics, light industry, metallurgy, petrifaction, heat treatment industry.

Technical standard

1. Input and range (one meter can be compatible)
(1) Thermocouple: K (-50~1300oC), S (-50~+1700oC), T (-200~+350oC), E (0~800oC), J ( 0~1000oC), B (0~1800oC), N (0~1300oC), WRe (0~2300oC)
(2) Thermal resistance: CU50 (-50~150oC) PT100 (-20~600oC)
(3) Linearity voltage: 0-5V, 1-5V, 0-1V, 0-100mV, 0-20mV.
(4) Linearity current(with diffluent resistance): 0-10mA, 0-20mA, 4-20mA.
(5) Linearity input: -1999~+9999 (user freely setting)

2. Precision
(1) Input by thermal resistance, linearity voltage and linearity current 0.5F. S± 1
(2) Thermocouple input adopt copper resistance or freezing compensate cold end 0.5 F. S± 1
(3) Although the meter can measure B, S, WRE during the temperature 0~600oC, its measurement could not reach 0.5 class
(4) differentiate rate: 1, 0.1

3. Response time≤ 0.5s (filter parameter sets 0)

4. Adjusting mode
(1) ON/OFF control methodReturn difference can be adjusted
(2) Common PID controlwith the parameter of self-setting function
(3) Intelligence adjustment(including vague PID adjustment and advanced control algorithm with the parameter of self-setting function)

5. Output specificationit 
1.Contact point output with controllable silicon: Can contact 5~500A two directions controllable silicon; 2 separate directions controllable silicon opposite direction parallel.
2. 30 Sects Procedure Control 


6. Alarm
Support two passive contact output, relay contact 250VAC/7A. It has four methods including upper limit, lower limit, positive deviation, negative deviation. It can output 2 ways at most

7. Movement with hand
Automatic /Manual

8. Power supply
(1) 85V-242VAC, 50-60Hz, power consumption ≤ 4W
(2) 24VDC/AC, power consumption≤ 4W
(3) 220VAC± 10% 50HZpower consumption≤ 4W

9. Working circumstance
Environment temperature: 0~50, humidity ≤ 85, no corrode and strong electromagnetism disturb

10. Product authentication
XMT*-808 series temperature meter acquire CE authentication and RoHS Environmental Protection authentication.


Sense of Model Code



Function and concept



Program StEP: The NO. Of the program StEP can be defined from 1 to 30, and the current StEP is the program StEP being executing.

StEP time: The total running time of the whole program StEP. The unit is minute and the available value range from 1 to 9999.

Running time: Time that the current StEP has run. As the running time reaches the StEP time, the program will jump to the next StEP automatically.

Jump: The program can jump to any other steps in the range of 1 to 30 automatically as you programmed in the program StEP, and realize cycle control. If StEP NO. Is modified, the program also will jump. Furthermore if the program StEP reaches and finished the 30th StEP, the program will jump back to the first StEP and run automatically...

Run/Hold: When program is in the running status, timer works, and set point value changes according to the preset curve. When program is in the holding status, timer stops, and set point remains.
The holding operation can be programmed into the program StEP. When the program meets with the StEP, the StEP time of that is set to zero, or when a jumping StEP jumps to another jumping StEP, the program will get in Hold status. Hold/Run operation can also be performed manually at any time.

Event output: Event output can be programmed in the instrument, it can trigger two alarm contacts to make external equipment operate with interlock.
Power on/power off: Means power on of the instrument or unexpected power failure at running status. Altogether 4 handling modes are selectable for user...

Curve fitting: Curve fitting is adopted as a kind of control technology for XMT-808P series instrument. As controlled process often has lag time in system response, by the way of curve fitting the instrument will smooth the turning point of the linear heating-up, cooling-down and constant temperature curves automatically. The degree of the smooth is relevant with the system's lag time, the longer of the lag time, the deeper of the smooth degree. On the opposite the smooth function will be weaker. Generally the shorter of the process lag time (such as temperature inertia), the better of the program control on effect. By the way of the curve fitting to deal with the program curves, will avoid overshoot. Note: The characteristic of the curve fitting will force the program control to generate fixed negative deviation during the linear heating-up and fixed positive deviation during the linear cooling-down, the deviation is direct proportional to the lag time (t) and the speed of heating-up (cooling-down). This phenomenon is normal.



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