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Control System Intrinsically Safe Analog Universal Input Module

Control System Intrinsically Safe Analog Universal Input Module

Model:UW5861

The UW5861 Control System Intrinsically Safe Analog Universal Input Module from UWNTEK factory can be directly connected to the dangerous side transmitter, isolates the electrical signal generated by the transmitter from the dangerous side and transmits it to the safe side, and provides 24V isolated power to the transmitter on the dangerous side. . UW5861 realizes signal type selection, program-controlled amplification, data conversion, fault diagnosis, temperature compensation and other functions of a single analog input channel, and supports universal input and online replacement.

This Control System Intrinsically Safe Analog Universal Input Module has passed the inspection in accordance with GB3836.1 and GB3836.4 standards and obtained an explosion-proof certificate. It is suitable for installation and use in safe areas, and can be used with intrinsically safe equipment in Zones 0, 1 and 2 of explosive gas hazardous locations.


Features:

Supports universal input of analog quantities (voltage/current/thermal resistance/thermocouple), with full range and high accuracy;

Automatically performs ambient temperature compensation and zero point and gain correction, no adjustment or maintenance required;

Online self-diagnosis and operating status display to quickly identify fault points;

Automatic identification of broken wires and automatic cold junction compensation of thermocouple signals;

Complete isolation between modules and systems and between modules to keep out external interference;

20mA output distribution voltage >15V, directly distributes power to on-site two-wire or three-wire transmitters, reducing supporting costs and engineering quantities, and significantly improving system anti-interference and stability;

Surge protection and online plug-in support circuit support module online plug-in and online replacement;

Low ripple, low temperature drift, high efficiency, high stability, high withstand voltage isolation power supply design, with multiple protections such as soft start, input short circuit protection, output power limit, and power distribution output current limit.


Technical Parameters:

parameter name Technical indicators
Rated input voltage 24VDC(18~36VDC)
input signal Voltage: 0~10mV, 0~20 mV, 0~100 mV, 0~5 V, 1~5V
Current: 0~10 mA, 0~20 mA, 4~20 mA
Thermal resistance: Pt100, Cu50
Thermocouple: B, E, J, K, S, T
common mode rejection ratio ≥120dB
Series mode rejection ratio ≥60dB
Input precision ±0.1%F.S.
Distribution voltage Open circuit voltage <27V, distribution voltage ≥15V when current is 20mA
Dielectric strength 2500Vac (1min)
Dimensions 115mm×112mm×13mm
Installation Environment On-site installation should comply with the GB3836.15-2000 standard and be installed in a non-hazardous place, and there should be no strong vibration, impact, gas or dust that are corrosive to product components in the surrounding environment.
Note: For products that have passed the explosion-proof inspection, components and structures that affect the explosion-proof performance cannot be changed at will.
working environment Ambient temperature: -20℃~60℃
Relative humidity: 10%~90%RH (no condensation)
Atmospheric pressure: 80~110KPa
Explosion-proof signs [Ex ia Ga] IIC
Intrinsically safe parameters A, C end/A, D end:
Uo=28VDC,Io=88mA,Po=616mW,Um=250VAC/DC
IIC:Co=0.05uF, Lo=2.4mH;IIB:Co=0.65uF, Lo=7.2mH;
IIA:Co=2.15uF, Lo=19.2mH。
B、D end:
Uo=6.6VDC,Io=0.7mA,Po=1.2mW,Um=250VAC/DC
IIC:Co=22uF, Lo=1000mH;IIB:Co=500uF, Lo=1000mH;
IIA:Co=1000uF, Lo=1000mH。
C、D end:
Uo=2.5V,Io=31mA,Po=19.4mW,Um=250VAC/DC
IIC:Co=100uF, Lo=27mH;IIB:Co=1000uF, Lo=81mH;
IIA:Co=1000uF, Lo=216mH。
Intrinsically safe parameter matching principle
UW6761Intrinsically safe parameters Match condition Intrinsically safe instrument parameters + cable parameters
U0 Ui
I0 Ii
P0 Pi
C0 Ci+Cc
L0 Li+Lc





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