SB3000-Ex Series Isolators
[Ex ia]ⅡC isolators designed to GB3836.4-2000, three-port isolation, bidirectional HART support, covering temperature transmission and power distribution.
- Original Factory Genuine, Tenfold Compensation for Counterfeits
- Full Machine Warranty, Lifetime Maintenance
- In Stock, Shipped on the Same Day
The SB3000-Ex series isolators use optical, electrical and magnetic isolation technologies to isolate the power supply, input signal and output signal from one another, achieving isolated signal transmission between field devices and the control system. They are isolation interface units between field devices and control room equipment.
The entire series is designed in accordance with GB3836.4-2000 and meets intrinsic safety explosion protection requirements. Internal isolation devices and voltage- and current-limiting components limit fault energy flowing to the hazardous area, ensuring the safety of electrical equipment and personnel in hazardous locations. The series also includes temperature transmitter models that convert various field temperature signals into standard signals, with functions covering RTD/thermocouple/millivolt transmitters, distributors and intermediate drive relays.
| Parameter Name | Technical Specifications |
|---|---|
| Explosion protection and standards | |
| Explosion protection rating | [Ex ia]ⅡC |
| Design basis | GB3836.4-2000 |
| Applicable locations | The most hazardous Zone 0 locations and the most hazardous media |
| Isolation | |
| Isolation method | Input/output/power three-port isolation, isolated from one another |
| Energy-limiting method | Internal isolation devices + voltage- and current-limiting components limit energy flowing to the hazardous area |
| Earthing | No grounding required |
| Functions | |
| Communication | Supports bidirectional HART protocol communication |
| Temperature transmitter | RTD, thermocouple and millivolt signal transmission |
| Other functions | Distributors, intermediate drive relays |
| Redundant | Triple redundant circuit design |
| Conversion accuracy | High conversion accuracy |
| Installation | |
| Installation Method | Independent DIN rail mounting |
| Terminals | Hot-swappable under power |
| Density | High-density mounting, improving system integration |
- [Ex ia]ⅡC explosion protection rating, suitable for Zone 0 locations and the most hazardous media
- Designed to GB3836.4-2000, meeting intrinsic safety requirements
- Three-port isolation of input/output/power supply, with high isolation voltage
- Voltage- and current-limiting elements restrict fault energy flowing to the hazardous area
- Supports bidirectional HART protocol communication
- Covers functions including temperature transmission, power distribution and intermediate drive relays
- Terminals are hot-swappable under power; independent DIN rail mounting
- Triple redundant circuit design, no grounding required
Intrinsic safety system retrofit in petrochemical plants
Replaces early non-isolated barrier solutions, achieving three-port isolation between field intrinsically safe instruments and control room systems.
Intrinsic safety isolation for temperature loops
Thermocouple signals are transmitted by the isolation barrier as (4~20)mA to the DCS, meeting both intrinsic safety and HART communication requirements.
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