Description 05701-A-0328 HONEYWELL Analysis Relay Card Product Dimensions: Product Description (Detailed Explanation) The 05701-A-0328 acts as the “brain” for an individual gas detection point. It is a plug-in card that resides in a System 57 rack. Its primary function is to provide the drive current to a remote catalytic bead sensor and interpret the return mV signal. The card features a front-panel LED display that provides a real-time digital readout of gas concentration (typically 0–100% LEL). It includes a multi-color “health” indicator and alarm LEDs. The card is highly configurable, allowing users to set alarm thresholds, time delays, and relay voting logic to ensure a tailored safety response for specific site requirements. Product Parameters (Technical Specifications) Parameter Category Specification Model Type Single Channel Combustible Gas Control Card Sensor Compatibility Catalytic Bead (Pellistor) Sensors (e.g., Sensepoint, 705) Input Signal 3-Wire mV Bridge Measurement Range 0 to 100% LEL (Lower Explosive Limit) Display 3-digit High-intensity LCD/LED with Bar Graph Alarms 3 levels (A1, A2, A3) Fault Output Signals 4-20mA (Isolated) and Relay Outputs Power Consumption Approximately 3.75W Mounting System 57 Rack (3U High) Product Advantages (Key Benefits) High Integrity Monitoring: Provides dedicated processing for a single sensor, ensuring that a failure in one channel does not affect the rest of the safety system. Intuitive Interface: The clear digital display and color-coded LEDs allow maintenance personnel to identify gas leaks or system faults at a glance from a distance. Modular Scalability: Because the system is rack-based, it is easy to expand from a few channels to dozens by simply adding more 05701-A-0328 cards. Flexible Outputs: With both a 4-20mA analog output for DCS/PLC integration and onboard relays for local sirens or fans, it serves as a comprehensive safety interface. Legacy Reliability: The System 57 is one of the most field-proven gas control architectures in the world, known for its longevity and stability in harsh climates. Precautions (Important Notes) Sensor Matching: This card is specifically calibrated for catalytic bead sensors. Do not connect 4-20mA loop-powered transmitters to this specific model (the 05701-A-0301 is usually used for 4-20mA inputs). Hot-Swapping: While the cards are designed for rack use, ensure the rack power is stable and follow the manufacturer’s guidelines before extracting a card to avoid data corruption or false alarms in the system. Calibration: The “Zero” and “Span” calibration must be performed at the card level to match the specific characteristics of the connected cable run and sensor head. Relay Contact Ratings: Ensure the connected load (e.g., a large ventilation fan) does not exceed the rated capacity of the onboard relays; use an interposing relay if necessary. Product Applications (Typical Use Cases) Oil & Gas Refineries: Monitoring for methane, propane, or other explosive hydrocarbons near pump seals and storage tanks. Chemical Processing: Detecting combustible solvent vapors in mixing and reactor areas. Battery Rooms: Monitoring hydrogen ($H_2$) levels during the charging cycles of large UPS battery banks. Wastewater Treatment: Detecting methane gas generated in digesters or enclosed wet wells. Offshore Platforms: Providing high-reliability gas detection in cramped quarters where modularity and rack density are essential. Shipping Port: Xiamen, China Payment: Bank of Chicago, Bank of Singapore Express cooperation: fedex, DHL, UPS and your express account Service: Professional Sales provides 24 hours /7 days online service Please make an inquiry for more models: HAMAMATSU MVS-7000 Honeywell 51402645-200 Honeywell 51309204-175 Honeywell 51403776-100 Honeywell 51304465-100 Honeywell MC-PAOY22 Honeywell 51304493-250 Honeywell TC-ODK161 Honeywell 51304685-150 Honeywell 900P01-0001 Honeywell 51304453-150 Honeywell RM7838C1004 Honeywell 51305072-600 Honeywell TC-FPDXX2 Honeywell 51304511-100 Honeywell TC-PRR021 HONEYWELL 51304453-100 Honeywell 51195156-300 HONEYWELL 51304644-125 Honeywell 51400700-100 HONEYWELL 51304518-150 Honeywell 51401286-100 HONEYWELL 51304362-300 Honeywell J-DIM00 HONEYWELL 51304672-150 Honeywell J-MHM10 HONEYWELL 51304650-100 Honeywell J-MSC10 HONEYWELL 51304487-100 Honeywell 51195066-100 /HF-75632-F HONEYWELL 51304754-150 Honeywell C7027A 1049 HONEYWELL CC-PAIM01 Honeywell 51402573-150 HONEYWELL CC-PAIH01 Honeywell DC1030CR-101000-E HONEYWELL CC-PAOH01 Honeywell XC5010C HONEYWELL CC-TAOX01 Honeywell 51401437-301 HONEYWELL CC-TAIX01 Honeywell TC-LLMUX2 HONEYWELL CC-TDOB01 Honeywell FF-SB12E04K-S2 HONEYWELL CC-TDIL01 Honeywell FF-SB12R04K-S2 HONEYWELL MC-TAMR04 Honeywell TK-PRR021 HONEYWELL HONEYWELL10024/I/I Honeywell 10006/2/1 HONEYWELL 51410070-175 Honeywell DC120211101000 HONEYWELL CC-PAON01 Honeywell 51305072-100 Honeywell FF-SB14E064-S2 Honeywell 51305072-200 Honeywell TC-PRS021 Honeywell 51305072-300 Honeywell TC-CCN014 Honeywell 621-0021R Honeywell 51197593 Honeywell 620-3030 Honeywell TC-FPCXX2 Honeywell FDC220/C7027A. 1049 Honeywell TC-PCIC01K Honeywell 04973-X01-333-20-00-000-000 Honeywell TC-TCXBNC Honeywell 946 A4V 2D 2C0 380E Honeywell DC1040-CR701000-E Honeywell 51404223-001 Honeywell KSW24 Honeywell 51404203-002 Honeywell LSQA6B134 Honeywell IPC 620-15 Honeywell TK-PRS021 Honeywell 946-A4V-2D-2C0-380E Honeywell TK-CCR014 Honeywell 621-3560 Honeywell TK-IOLI01 Honeywell MU-TAIH14 Honeywell 621-0010-ARC Honeywell MU-TAOY22 Honeywell ML984 Honeywell XCL5010 Honeywell 51304337-150 Honeywell LS2D4L Honeywell TK-FTEB01 Honeywell ECEA1616R24 Honeywell 620-0083C Honeywell EC7830A1066 Honeywell 51196694-300/U1 Honeywell EC7890B1010 Honeywell 621-0020RC Honeywell LSYAC1E Honeywell C7012A1186 Honeywell FC-SDI-1624 Honeywell TC-RPCXX1 Honeywell FC-TSDI-1624 Honeywell TC-IAH161 Honeywell TC-OAV081 Honeywell 51402645-200 Honeywell 80363972-150



