{"product_id":"05701-a-0302-honeywell-single-channel-control-card-catalytic","title":"05701-A-0302 | Honeywell | Single Channel Control Card Catalytic","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eHoneywell 05701-A-0302\u003c\/strong\u003e is a microprocessor-based gas monitoring interface card engineered specifically to control and process signals from catalytic bridge sensors within the \u003cstrong\u003eSystem 57\u003c\/strong\u003e framework. This single-channel control card interfaces directly with field-mounted combustible gas sensors, providing the essential excitation voltage and bridge conditioning circuitry needed to evaluate hazardous gas concentrations. Operable as an autonomous safety element inside industrial racks, the device continuously performs comprehensive self-testing loops to monitor internal operation, configuration integrity, and active sensor loop continuity.\u003c\/p\u003e\n\u003cp\u003eThe module incorporates a specialized four-part liquid crystal display on its front face to provide a local indication of flammable gas levels via an analogue bar segment representation alongside explicit numeric and diagnostic text strings. The processed sensor signals are evaluated against adjustable threshold points to trigger alarm states across the common sub-rack backplane, interfacing seamlessly with centralized alarm loops, industrial automation systems, and discrete safety shutdown mechanisms.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFeatures an integrated \u003cstrong\u003efour-part liquid crystal display\u003c\/strong\u003e comprising a 25-segment analogue bar indicator, a 4-character digital concentration window, a 4-character message block, and operational status icons.\u003c\/li\u003e\n\u003cli\u003eEquipped with dedicated front-panel indicators including LEDs for \u003cstrong\u003eA1, A2, A3 gas alarms\u003c\/strong\u003e, alongside system \u003cstrong\u003eFault\u003c\/strong\u003e and channel \u003cstrong\u003eInhibit\u003c\/strong\u003e indicators.\u003c\/li\u003e\n\u003cli\u003eProvides a front-facing \u003cstrong\u003eAlarm Reset\/Card Select push-button\u003c\/strong\u003e allowing operations personnel to reset latched alarm flags or toggle local programming configurations.\u003c\/li\u003e\n\u003cli\u003eSupports high-precision safety threshold engineering with \u003cstrong\u003eAlarm Setting Point Resolution\u003c\/strong\u003e fully adjustable in discrete 1% fsd steps.\u003c\/li\u003e\n\u003cli\u003eFeatures low-drift signal conversion circuitry providing an \u003cstrong\u003eElectronic Drift\u003c\/strong\u003e stability threshold restricted to less than plus or minus 2% over a 6-month continuous runtime.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFixed combustible gas monitoring networks in onshore petrochemical refineries and offshore production platforms.\u003c\/li\u003e\n\u003cli\u003eSpecialized gas detection panels in heavy machinery spaces, marine engine rooms, and industrial boiler utilities.\u003c\/li\u003e\n\u003cli\u003eMarshaling cabinets requiring individual loop separation for catalytic bead sensors protecting critical manufacturing plant perimeters.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e05701-A-0302\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle Channel Control Card Catalytic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSystem 57 \/ 5701 Series Control System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDC Supply Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18V to 32V dc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption (Catalytic)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.75W (typical, including Catalytic Sensor load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption (4 - 20mA compatibility)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.25W (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eElectronic Drift Rate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLess than ±2% \/ 6 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlarm Configuration Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIn 1% fsd steps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUnited Kingdom\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (L x W x H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e17cm x 2.5cm x 11.2cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.165 Kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections\/Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eConnector \/ Interface\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSK1\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15-way D-type female socket for physical coupling to field terminal cards or relay expansion assemblies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSK2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32-way backplane socket routing power lines, common relay contacts, and serial communications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eJ1 \/ J2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14-way internal headers carrying the plug-in sensor drive module tailored for catalytic bridges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eJ3 \/ J4\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8-way onboard expansion headers accommodating an optional isolated analogue output expansion block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFS1\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInternal low-voltage overcurrent protection fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub-Rack Installation\u003c\/strong\u003e: Slide the module into its designated slot inside the System 57 19-inch sub-rack frame, verifying that both the upper and lower mechanical guide rails are fully engaged before pressing the card home.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShielding and Interface Paths\u003c\/strong\u003e: Route all field sensor connections through the matching interface block or relay termination card using multi-conductor shielded cables up to 2.5mm2 cross-sectional area.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding for Catalytic Bridges\u003c\/strong\u003e: Terminate the external cable shielding sheath directly to the system earth grounding stud on the termination block assembly to isolate precision bridge signals from localized EMI\/RFI noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-Point Earth Termination\u003c\/strong\u003e: If the field-mounted sensor enclosure is connected to structural metalwork, ensure the shielding path is tied only at the controller rack frame to avoid creating hazardous ground loop pathways.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Management\u003c\/strong\u003e: Maintain an unobstructed airflow path across the top and bottom ventilation openings of the sub-rack housing to preserve structural component life under full catalytic drive loads.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between the 05701-A-0301 and this 05701-A-0302 model?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 05701-A-0302 comes factory-configured with an internal sensor drive module optimized to run and excite passive 3-wire catalytic bead sensors directly, whereas the 05701-A-0301 is tailored for active 4-20mA current loop transmitters.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow are the local alarm thresholds calibrated or altered on this device?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe trip values and full-scale calibration parameters are managed through an onboard microprocessor and written into an internal non-volatile memory block, which requires an external Engineering Card or compatible diagnostic software configuration kit to adjust.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs it necessary to power down the entire control rack to replace a single card?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, individual channels function as completely isolated control loops, permitting maintenance personnel to insert or remove a single module while neighboring slots remain fully operational.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow should unused channels inside a multi-slot rack assembly be configured?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnused slots do not require empty cards; however, if a card is installed but not tied to a live sensor loop, the specific channel must be set to the permanently inhibited state via software or hardware bridges to avoid generating constant field fault states.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":52705555972459,"sku":"05701-A-0302","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/honeywell-05701-a-0302-gas-detectors-usa-e44yjody2fv_33eecda4-1ee4-48e7-bcb1-eeed8eeb9881.jpg?v=1765501339","url":"https:\/\/www.plcprotech.com\/products\/05701-a-0302-honeywell-single-channel-control-card-catalytic","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}