DK23H8 liquid level, pressure, temperature and flow PID process control instrument

Product features

High precision 24 bit AD measurement, feeding with sensor.

Maximum can provide 4 way alarm relay output control.

Standard MODBUS RTU communication

With signal conversion function

It can realize double output control of heating and refrigeration (refrigeration adopts relay, which can protect the function of refrigeration compressor)

Patent designed anti-interference chip design measuring circuit, can work in harsh working environment.

Improved DK PID algorithm control, output faster and no overshoot. Control speed 100MS

input

Input signal range: 23 common industrial standard signals.

K        
S        
R        
T        
E        
J        
B        
N        
WRe3-WRe25 
WRe5-WRe26 
Cu50    
Pt100    
0~80Ω    
0~400Ω    
0~10mA    
0~20mA    
4~20mA    
0~20mV    
0~100mV    
0~1V    
0~2V    
0~5V    
1~5V 

output

0-10MA

0-20MA

4-20MA

communication

Photoelectric isolation RS-485 communication interface

Alarm

Up to 4 routes (2316 for all alarms)

When heating, the main control output is used for upper alarm of position control.

When cooling, the main control output is used for lower limit alarm.

Other detailed parameters

Input signal range: 23 common industrial standard signals.

Basic error: 0.2%FS + 1 words.

Measure AD:24 bits, 40Hz

Output DA:12 bits, 100KSPS

Main control output: 1 way (optional heating refrigeration output mode, alarm three can be defined as refrigeration output).

Input impedance: when the voltage is greater than or equal to 500K, the current is less than 200 ohms, the thermal resistance is less than 0.25mA, and the thermocouple is more than 500K

Output impedance (with load capacity): current less than 500_ (current has special requirements, can achieve 650 Euros, when ordering instructions), relays AC220V/2A, DC30V/1A

Display mode: digital tube

Control output cycle: 10Hz

Communication protocol: MODBUS RTU (RS485 interface, two wire system)

Driving distance: 1200 meters

Check mode: no check, odd check, even check.

Baud rate: 4800  9600  19200

Communication data format: one start bit, eight bit data bits, one stop bit.

Supply voltage: 100-240V AC (47~63Hz)

Isolation voltage: input, output, power three isolation, 2300 V AC 1 minutes.

Working conditions: temperature -20 ~ +50 C, humidity 10% ~ 90%RH

Storage conditions: temperature: -40 ~ +80 C; humidity: 10% ~ 90%RH

Selection size

DK2304 : 96*96mm、

DK2308 : 96*48mm、

DK2306 : 72*72mm、

DK23H8 : 48*96mm、

DK2316 : 48*48mm、