■ Features:
● Include 4 independent input units,equal to 4 ways of transmitter input,with isolation between every unit
● The combination of AC voltage,AC,DC voltage,DC,temperature and other input units are selective when needed
● With RS485 output interface,be applicable for a  variety of communication codes
● Low temperature floats characteristic, high-impact voltage and insulation characteristic
● Stable performance,reliable quality
● The power supply, signal input and output terminals can offer the function of lightning protection and a selective purchasing
● Applicable for the automatic control of the engineerings like circuit system,intelligent buildings
 

■ Code Illustration:

Input Type:

0: AC
1: AC voltage
4: Temperature
6: DC
7: DC voltage
NKB-40-□□□□---the Fourth Road type input type
           the Third Road input type                      
         the Second Road input type                     
       the First Road input type           
40-type combined intelligent transmitter               
■ Technical Specification:

-Power supply changes:          ≤0.05% rated output
-Energy consuming:                ≤ 2.5VA(single item two-wire)
                                     ≤ 6.5VA(three-phase three-wire)
-Interference effects:          ≤ 0.1% rated output,between the components
-Effect of magnetic field strength:  400 ATM ≤ 0.2% rated output
-Insulation strength:             IEC414,IEC688:1992,ANSI C37.90a
                                     between the input/output/power supply and outer shell
                                     AC4KV, 50/60Hz, a minute
-Imax:                              3kA(8/20μs)
-Vp:                                <1500V
-Operaing temperature:            -10 ℃～ 60 ℃
-Working relative humidity:     20-95%RH and with no condensation 
-Voltage-shock tests:             IEC255-4,ANSI C37.90a
                                      6KV, 1.2×50μ sec CM&DM
-Safty norm:                        IEC414,BS5458

-Output interface:                    RS485                              
-Installation:                        Track installation(EN50022)
-Communication code:                  Modbus, IEC103                   
-Baud rate:                           1200bps-38400bps
-Accuracy:                           ≤±0.2% rated output
-Waveform influence:               ≤0.2% rated output,30% waveform distortion
-Over-voltage input capability:   Voltage:1.5×rated continuous input,2×rated input within 10s,4×rated input within 2s    Current:3×rated continuous input  10×rated input within 10s  50×rated input within 1s 
-Power supply:                      AC115/230V±15%,50/60Hz    AC380/415V±15%,50/60Hz 
                                      Special election:DC24V, 48V, 110V, 220V±10%