±0.1℃ Error High-Precision Temperature Controller adopts a 24-bit processing chip, featuring high measurement and control accuracy. ±0.1℃ Error High-Precision Temperature Controller also comes with more extended functions and a modular design, enabling more flexible configuration.

It supports 9 process profiles, with each profile configurable for 24-segment program curves-this allows for 24-segment curve-based process control. Practical functions such as relay action output and 5-group PID call can be implemented in the 24-segment curves as required, meeting complex demands for curve process control. It supports grouped output limiting, where users can set the time and specified output restriction percentage to protect the load.

This program process control instrument is equipped with dual-output control capabilities for heating and cooling.

The 2 auxiliary input channels offer the following functions: heater wire break alarm, remote SV (Set Value) adjustment via DCS (Distributed Control System), high-low temperature switching between dual sensors, and dual-sensor redundancy.

There are 2 groups of optically isolated digital inputs, enabling flexible application switching for various functional needs.

This process control instrument supports input from 32 types of common industrial signal sensors.

Available control output types include: relay, analog linear signal, solid-state relay output (transistor), and thyristor (capable of directly driving electrical equipment with a current of less than 5A).

This program control instrument features a highly user-friendly human-machine interface (HMI) design, with simple and convenient key operations. During the execution of a program curve, it can display information such as the current remaining time and the current set value.

Local editing and input of program curves are simple and straightforward. The program segment curves have a power-off data retention function and a power-on alarm exemption function.

It adopts a control algorithm that is adaptable to various operating conditions.

Optional communication protocols include Modbus RTU and TCP.

Features

0.1 class accuracy measurement, 5-digit nixie tube display and status display window
Standard MODBUS RTU communication protocol, optional Ethernet interface
High-speed master-slave control instrument online communication function, simplifying process curve settings and automatic SV synchronization
Grouped PID and grouped PID limiting, suitable for loads with various characteristics
Functions such as remote analog setting, communication control, and heater wire break protection
Supports 32 common industrial signals including PT1000 input
Adopts improved DK PID algorithm for more accurate control
With sensor power supply function and anti-interference design
Enhanced valve position control instrument, supporting valve position control with feedback and without feedback
Supports custom 8-point curve input correction, non-standard custom sensors, and automatic switching between high and low temperature sensors

01/

Inputs

K; S; R; T; E; J; B; N; WRe3-WRe25; WRe5-WRe26; Cu50; PT100; PT1000; 0～80Ω; 0～400Ω; 0～5000Ω; 0～10mA;
0～20mA; 4～20mA; 0～20mV; 0～100mV; -20～+20mV;
-100～+100mV; 0～1V; 0～2V; 0～5V; 1～5V; 0～10V;
2～10V; -5V～+5V; -10V～+10V

02/

Output

4-20mA; 0-20mA; 0-10mA; Relay output;

Transistor solid-state output; Thyristor output;

None; Optional voltage output

03/

Communication (Optional)

Standard MODBUS RTU communication

Standard Modbus TCP Ethernet

04/

Alarm

2-channel relay output

Other Detailed Parameters

Control cycle	50mS/100mS
Measurement accuracy	0.1% FS (using 24-bit AD)
Sampling rate	20Hz/10Hz
Control output:
Analog signals	4-20mA, 0-20mA (<500Ω), 0-10mA (<1kΩ)
Relay	2A (250V AC)
Solid-state relay (transistor)	22V 20mA
Thyristor	6A 250V AC
LED nixie tube	3-row display
Row 1 (PV)	5 digits
Row 2 (SV)	5 digits
Row 3 (information window)	3 digits
Signal measurement input impedance	≥500KΩ for voltage, ≤120Ω for current, ≥500KΩ for thermocouple; Resistance measurement adopts three-wire system, and the resistance of each signal transmission wire shall not exceed 10 ohms;Standard MODBUS RTU communication protocol, two-wire RS485
Parity check	no check, odd check, even check
Communication speed	4800BPS, 9600BPS, 19200BPS
Communication address range	1~247
Power supply	86~260V AC (47~63HZ)
Isolation voltage	2300V AC for 1 minute between input, output and power supply
Operating temperature	0~60℃
Storage conditions	temperature -40℃~80℃; humidity 0.1-0.9RH
External dimensions	9648mm (opening size 9244mm)
EMC standard	EN61326*
Safety standard	EN61010 and UL3121
Protection class	IP66
Power consumption	7W
Model Selection Dimensions	DK2408T External dimensions 96×48×109mm Opening size 92×44mm

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