Intelligent supply current and voltage table DH4

DH4 intelligent current and voltage table 










 Features 

 ◎ universal-type input, select the range by the input code 

 ◎ upper and lower limit alarm relay output (250 V / 3 A) 

 ◎ may take 4-20 ma transmitter output optical isolation 

 ◎ available with RS 485/RS232 / RS422 communication port 

 ◎ switching power supply module, SMT chip manufacturing process 

 First, the model and the meaning of 



 Second, the technical parameters 

 Input 
 Single-ended input 

 A / D conversion 
 Double integral 

 Measurement speed 
 About 2.5 times / sec 

 Accuracy 
 0.5% ± 2Digit 

 Response time 
 0.25sec 

 Display 
 Red LED (14.2mmH) 

 Overflow Display 
 "UUUU" or "LLLL" 

 Error display 
 "Err." (When L> H, that is the error) 

 Frequency Range 
 45Hz ∽ 400Hz (AC only) 

 Transmission output 
 4 ∽ 20mA (0.5% ± 3Digit) 

 Transmission range 
 Arbitrarily set between the measuring range 

 Control output 
 Upper and lower limit alarm relay output AC 3A/250V 

 Communication 
 RS-485 or RS-232 

 Power 
 Switching Power Supply AC 90 ∽ 265V 50Hz/60Hz 

 Power 
 ≤ 1.5VA 

 Pressure 
 AC 1500V 1min 

 Insulation resistance 
 DC 500V> 50MΩ 

 Work environment 
 0 ∽ 50 ℃, 45% ∽ 85% RH 



 Third, the input code selection 

 Code 
 Range 
 Remarks 
 Code 
 Range 
 Remarks 

 0 
 600V 

 5 
 200mA 


 1 
 100V 

 6 
 20mA 


 2 
 10V 

 7 
 5A 


 3 
 2V 

 8 
 Made special 


 4 
 200mV 

 9 
 Made special 



 Note: 1, DH4 Series Intelligent current AC and DC voltage meter points in the two types. 
 2,10 V, 100V, 600V using the same input, 20