Introduction to HONEYWELL 05704-A-0145
05704-A-0145 Product Overview
The HONEYWELL 05704-A-0145 is a high-precision four-channel analog input control card under the System 57 product family, specifically designed for industrial automation and gas detection systems. It serves as a vital signal bridge, capable of simultaneously receiving 4-20mA standard industrial signals from up to four field transmitters (e.g., pressure, temperature, flow, and gas sensors) and converting them into digital data via 12-bit high-precision A/D conversion for the central control unit. Featuring channel-to-channel electrical isolation, 1000V DC isolation between field and system sides, and comprehensive short-circuit and open-circuit protection, this compact module maintains stable performance in harsh industrial environments with strong electromagnetic interference. It supports hot-swappable installation for easy maintenance and seamlessly integrates with Honeywell System 57 control platforms, widely applied in petrochemical plants, water treatment facilities, and high-risk gas monitoring scenarios to ensure reliable process supervision and operational safety.
05704-A-0145 Technical Specifications
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Product Model: 05704-A-0145
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Product Type: Four-Channel Analog Input Control Card (System 57 Series)
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Core Functions: 4-20mA analog signal acquisition, 12-bit A/D conversion, electrical isolation protection, short-circuit/open-circuit protection, hot-swappable maintenance, Modbus RTU communication support
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Signal Specifications: Input signal type: 4-20mA current signal (supports 2-wire/3-wire transmitters); Number of channels: 4 independent isolated channels; A/D conversion accuracy: 12-bit (±0.1% full-scale error); Measurement range: 0 to 25mA (linear); Maximum line resistance: 500Ω (including sensor)
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Power Supply: Operating voltage: 18VDC to 32VDC; Loop-powered output voltage: Isolated 24V ±5%, max 25mA; Power consumption: Typical 7.5W, Maximum 8.3W
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Protection Features: Short-circuit protection; Open-circuit voltage protection (±50V); Isolation breakdown voltage: >1000V DC (field to system side), 500V AC (channel to channel); Anti-vibration/shock: 10-2000Hz@5g RMS, 100g@11ms pulse
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Environmental Ratings: Operating temperature: -20°C to +60°C; Storage temperature: -25°C to +70°C; Relative humidity: 5% – 95% (non-condensing); Protection rating: IP67
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Mechanical & Installation: Mounting type: System 57 standard rack plug-in type; Dimensions (L×W×H): 172mm × 25mm × 132mm; Net weight: Approximately 0.17kg; Front panel indicators: A1/A2/A3 alarm LEDs and fault LED per channel
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Key Features: High-density 4-channel design; High-precision signal conversion; Comprehensive isolation protection; Hot-swappable for convenient maintenance; Online parameter configuration via System 57 configuration software
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Compatibility: Seamlessly integrates with Honeywell System 57 control systems; Supports Modbus RTU protocol via RS485 interface; Compatible with various industrial transmitters and gas sensors
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Applications: Industrial automation systems, gas detection systems, petrochemical plants, water treatment facilities, power generation facilities, process safety systems, pressure/temperature/flow monitoring
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