Non-Isolated Two-Wire 4-20mA Analog Signal Acquisition and Conversion

Non-isolation 4-20mA Two-wire Analog Signal Conditioner
SY 4-20mA-P

FEATURE
>>Power supply no needed, non-isolation, two-wire loop powered.
>>Wide range input voltage signal
>>4-20mA high accuracy(0.05,0.1,0.2)
>>High linearity(Nonlinearity<0.1%)
>>Low cost, small size, standard SIP7 package
>>4-20mA signal input/Output
>>Industrial temperature(-45—+85 ºC)

APPLICATION
>>PLC,DCS analog signal data acquisition and isolation
>>No distortion in long distance signal transmission
>>Instrument signal acquisition
>>Industrial fileds analog signal acquisitions and monitoring
>>Sensor signal and analog input interface match

DESCRIPTION
SY 4-20mA-P is a two-wire 4-20mA analog signal acquisition chip, belongs to SY 4-20mA series products.It
contains internal signal acquisition, conditioning and conversion circuits coupled. A very small input equivalent
resistance, so that this circuit can be collected from the sensor signal to achieve ultra-wide range (7.5 ~ 32V) voltage
to meet the users do not need an external auxiliary power supply and the realization of long-distance signal, no
transmission distortion. The IC output is 24VDC and sampling for the resistance (load resistance) in series two-wire
loop-powered design, and with the current commonly used analog input interface board (upper plane), PLC, DCS, and
other commonly used for analog instrumentation input port to match. And can meet the temperature, humidity,
vibration and other harsh industrial on-site environmental requirements. SY 4-20mA-P product is very convenient, just
add a 2KΩ to the multi-turn potentiometer ADJ correction, you can achieve the two-wire 4-20mA signal transmission
function.

Applications: