Product Description
Overview
The P+F KCD2-STC-EX1 is an isolated barrier designed for intrinsically safe applications. It provides power to 2-wire SMART transmitters in hazardous areas and transfers analog input signals to the safe area as isolated current values. Supporting HART and BRAIN protocols, this module ensures seamless bi-directional digital signal transmission.
Key Features
- Intrinsically Safe Power Supply: Supports 2-wire SMART transmitters in hazardous environments.
- HART and BRAIN Protocols: Ensures reliable digital communication.
- Configurable Output Modes: Selectable current source, sink, or voltage output via DIP switches.
- Integrated HART Communication Resistor: 250 Ω resistance available if needed.
- High Accuracy and Stability: <0.1% full-scale deviation, even in extreme conditions.
- Fast Response Time: ≤10 ms rise/fall time with ≤50 ms settling time.
- Galvanic Isolation: Ensures safe electrical isolation between input, output, and power supply.
- Compact and DIN Rail Mountable: 12.5mm width, ideal for space-constrained installations.
Technical Specifications
| Specification | Details |
|---|---|
| Power Supply | 19-30 V DC via Power Rail or terminals 9+, 10- |
| Power Consumption | ≤1.1 W |
| Input Signal | 4-20 mA, limited to 26 mA |
| Open Circuit Voltage | 22V / 26 mA |
| Available Voltage | ≥15V at 20mA, ≥18V at 4mA |
| Output Signal | 4-20 mA (current source/sink) or 1-5V (voltage mode) |
| Load Resistance | 0-350 Ω (source mode) |
| Accuracy | <0.1% full-scale deviation |
| Response Time | ≤10 ms rise/fall time, ≤50 ms settling time |
| Isolation Voltage | 300 Veff between input, output, and power supply |
| Operating Temperature | -40°C to +70°C (-40°F to +158°F) |
| Dimensions | 12.5mm × 119mm × 114mm |
| Weight | Approx. 100g |
| Protection Rating | IP20 |
| Mounting | DIN Rail (EN 60715) |
Certifications & Compliance
- ATEX Certified: [Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I
- IECEx Certified: Ex ec IIC T4 Gc
- UL & FM Approvals: UL 61010-1, FM 18 CA 0116 X, FM 19 US 0117 X
- EMC Compliance: EN 61326-1:2013, NE 21:2017
Applications
- Oil & Gas: Ensures intrinsically safe operations in hazardous areas.
- Chemical Processing: Provides stable transmitter power in corrosive environments.
- Industrial Automation: Supports HART-compatible smart transmitters.
- Power Plants: Ensures accurate signal isolation and transmission.
The P+F KCD2-STC-EX1 is a highly reliable and versatile SMART transmitter power supply, offering superior safety, precise signal transmission, and robust industrial performance.