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 |
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| 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. |
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| working environment |
Ambient temperature: -20℃～60℃ Relative humidity: 10%~90%RH (no condensation) Atmospheric pressure: 80~110KPa |
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| 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。 |
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| Intrinsically safe parameter matching principle |
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69 Sanying Road, Zahngdian District, Zibo City, Shandong Province, China
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