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HIMA KFD2-VR4-Ex1.26 – 4-Channel Signal Splitter/Repeater with Intrinsic Safety
Product Overview
The HIMA KFD2-VR4-Ex1.26 is a 4-channel signal splitter and repeater designed for intrinsically safe industrial environments. It solves the challenge of transmitting analog signals (4-20mA) from hazardous areas to non-hazardous control systems, providing reliable signal isolation and amplification. This module ensures safe signal conversion between field sensors and control units, making it suitable for petrochemical, chemical, and oil & gas industries where explosive atmospheres exist. Its robust design meets strict intrinsic safety standards, enabling seamless integration into HIMA safety systems and other industrial control setups.
Technical Specifications — KFD2-VR4-Ex1.26
| Parameter | Value |
|---|---|
| Product Model | KFD2-VR4-Ex1.26 |
| Manufacturer | HIMA |
| Product Type | 4-Channel Signal Splitter/Repeater (Intrinsically Safe) |
| Power | 24 VDC, 120 mA Maximum Current |
| Communication / Protocol | 4-20mA Analog Signal, Passive Signal Transmission |
| Operating Temperature | -20 °C to +60 °C |
| Mounting | DIN Rail Mount (35 mm) |
| Dimensions (HxWxD) | 12.5 x 100 x 115 mm |
| Weight | 0.18 kg |
| Typical Interfaces | 4 x Input/Output Ports, Screw Terminals |
| Compliance | ATEX, IECEx, SIL 2, UL 913, RoHS |
HIMA KFD2-VR4-Ex1.26
Key Features and Benefits — KFD2-VR4-Ex1.26
- 4 independent channels support 4-20mA analog signals, enabling simultaneous splitting/repeating of multiple sensor signals.
- Intrinsic safety design (Ex ia IIC T6) allows use in Zone 0/1 hazardous areas, ensuring safe operation in explosive environments.
- 1500V AC isolation between input, output, and power supply enhances noise immunity and protects control systems.
- Passive signal transmission maintains signal integrity, eliminating signal distortion during conversion and transmission.
- Compact DIN rail design saves installation space, with easy wiring via clearly labeled screw terminals.
Related Models
- HIMA KFD2-VR2-Ex1.26: 2-channel variant of the signal splitter, ideal for small-scale hazardous area applications.
- HIMA KFD2-VR8-Ex1.26: 8-channel high-density model, designed for large-scale industrial systems.
- HIMA KFD2-UT2-Ex1.26: Signal converter module, compatible with KFD2-VR4-Ex1.26 for mixed signal applications.
- HIMA KFD2-CR4-Ex1.26: 4-channel signal conditioner, works with KFD2-VR4-Ex1.26 to enhance signal stability.
Installation and Maintenance — KFD2-VR4-Ex1.26
- Mount the module on a 35mm DIN rail in a non-hazardous area, ensuring proper ventilation and spacing from other devices.
- Wire field sensors (hazardous area) to input terminals and control systems (non-hazardous) to output terminals, following HIMA’s wiring guidelines.
- Verify power supply polarity to avoid module damage; ensure connections are tight to prevent signal loss.
- Regularly inspect terminal connections for corrosion or loose wiring, and clean the module to prevent dust buildup.
- Use HIMA-approved spare parts for replacements, ensuring compliance with intrinsic safety and industry standards.
