AI708 Intelligent Temperature Controller

Temperature controller read the actual temperature value according to signal sampling of the temperature sensor ,then compares the actual temperature with the setting temperature,and adopt intelligent PID control algorithm to output an analog or switching value,so that drive relay or high-power actuators to achieve heating or cooling control,and it controls the actual temperature constantly in the setting value range. TC/RTD/analog signal,universal software choose input. 0.3%FS high-accuracy signal measurement. 2 degree PID arithmetic with positive and negative control output. Optional kinds of control output,heating control with linear output. 2 loop alarm,Optional kinds of alarm type. Rich size,big LED display. RS485 communication,ModBUS-RTU protocol. Industrial level of EMC test and higher reliability.

จำนวน
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Features

  • TC/RTD/Analog signal universal input, selected by software menu.
  • With display, alarm and adjusting function.
  • Measuring Accuracy: 0.3% F.S.
  • Advanced Fuzzy algorithm & Two Degrees of Freedom PID Arithmetic.
  • Optional control output, modularization design.
  • Good anti-jamming.
  • Switching power supply 100-240 VAC.
  • Applied to system temperature control application.

Model


ModelOutput 1Output 2AlarmRS485
48*48 SizeAI708-4-RB10Relay outputRelay output1No
AI708-4-DB104-20mA current outputRelay output1No
AI708-4-SB10SSR outputRelay output1No
AI708-4-RB18Relay outputRelay output1RS48 5
AI708-4-DB184-20mA current outputRelay output1RS48 5
AI708-4-SB18SSR outputRelay output1RS48 5
 AI708 - _ - RC10Relay outputRelay output2No
AI708 - _ - DC104-20mA current outputRelay output2No
AI708 - _ - SC10SSR outputRelay output2No
AI708 - _ - RC18Relay outputRelay output2RS48 5
AI708 - _ - DC184-20mA current outputRelay output2RS48 5
AI708 - _ - SC18SSR outputRelay output2RS48 5

Note:

OUT1: 4-20mA current output, load resistance 6000Ωmax.
            Relay output capacity: 3A/250Vac
            SSR output capacity: 30mA/24Vdc
OUT2: Can be worked just under heating-cooling control(OT=3);              under other control,
            worked as alarm 3 (size:48*48 worked as alarm 2)
             Relay output capacity: 1A/250Vac.
Alarm: Relay output capacity: 1A/250Vac

Main Technical Parameters

Whole controller parameters

Power supply100-240VAC
Total current<30mA (220VAC)
Ambient temperature0-50°C
Ambient humidity45-85% RH
Measurement accuracy0.3% FS ± 3 digits at 25°C
Control modeON/OFF control, PID heating control, PID cooling control, PID heating & cooling control
Communication functionRS485 communication interface, MODBUS RTU protocol
Panel protection levelIP65
Temperature excursionless than or equal to0.01% FS/°C
Dielectric strengthBetween the connectors of power supply to relay output, power supply to signal input, relay output to signal input 2000 VDC; Between the low voltage signal isolated with each other 600 VDC

 

Input signal table

No.Input signalMeasuring rangeResolutionInput impedance
0K type thermocouple-50~1300°C1°C> 100ΚΩ
1J type thermocouple-50~1200°C1°C> 100ΚΩ
2E type thermocouple-50~1000°C1°C> 100ΚΩ
3T type thermocouple-50~400°C1°C> 100ΚΩ
4B type thermocouple600~1800°C1°C> 100ΚΩ
5R type thermocouple-10~1700°C1°C> 100ΚΩ
6S type thermocouple-10~1600°C1°C> 100ΚΩ
7N type thermocouple-50~1200°C1°C> 100ΚΩ
8Reserved

 
9PT100-199.9~850.0°C1°C(0.2mA)
10JPT100-199.9~500.0°C1°C(0.2mA)
11CU50-50.0~150.0°C1°C(0.2mA)
12CU100-50.0~150.0°C1°C(0.2mA)
13Linear voltage0~50mV0.01%FS> 100ΚΩ
14Linear current4~20mA0.01%FS<110 Ω
15Linear voltage0~10V0.01%FS> 100ΚΩ
16Linear resistance0~400 Ω0.01%FS> 100ΚΩ





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