Description
1. Core Specifications
| Category | Specification |
|---|---|
| Type | Intrinsically safe signal isolator (Ex-i) |
| Input Signals | 2x 4-20mA (galvanically isolated) |
| Output Signals | 2x 4-20mA (active/passive configurable) |
| Power Supply | 20-30V DC (24V typical) |
| Isolation | 1500V AC (input/output/power) |
| Accuracy | ±0.1% of span |
| Response Time | <50ms |
| Operating Temp. | -20°C to +60°C |
| Protection Rating | IP20 |
2. Hazardous Area Certifications
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ATEX/IECEx: Ex ia IIC T6 Ga / Ex ia IIIC T85°C Da
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FM/CSA: Class I, Division 1 / Zone 0
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SIL Compliance: IEC 61508 (SIL 3 capable)
3. Key Features
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Dual-Channel Isolation: Independent processing for 2 signals
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Advanced Diagnostics:
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LED status indicators (power, signal, fault)
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Open/short circuit detection
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Configuration Options:
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DIP switch settings for input/output behavior
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Reverse polarity protection
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Modular Design:
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DIN rail mounting (35mm)
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12.5mm width per channel
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4. Wiring Configuration
Input+ Input- Output+ Output-
| | | |
[4-20mA] [4-20mA to PLC]
Channel 2: (identical configuration)
5. Applications
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Process Automation: Oil & gas, chemical plants
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Safety Systems: SIL-rated loops
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Signal Conversion: Interface between Ex and non-Ex zones
6. Ordering Information
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Lead Time: 3-5 weeks (standard production)
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Accessories:
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KF-1FSB-EX1 (Fieldbarrier for Ex zones)
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KFD2-CSH-EX1 (Communication module)
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