{"product_id":"amm31-yokogawa-magnetic-flow-converter-new-original-stock","title":"AMM31 Yokogawa Magnetic Flow Converter | New \u0026 Original Stock","description":"\u003ch2\u003eYokogawa AMM31 ADMAG Series Magnetic Flow Converter\u003c\/h2\u003e\n\u003cp\u003eConfigured for converting signals from magnetic flow tubes into standardized outputs within process automation networks, the \u003cstrong\u003eYokogawa AMM31\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eAMM31\u003c\/strong\u003e Magnetic Flow Converter, provides direct physical\/electrical execution.\u003c\/p\u003e\n\u003ch3\u003eHardware 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\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eAMM31\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.2 kg (6.1 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e12.7 cm x 2.5 cm x 20.3 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eStandard industrial range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eConfigured per excitation protocol requirements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExcitation Method\u003c\/td\u003e\n\u003ctd\u003eDual frequency (up to 400 mm tube) \/ Pulsed DC (500 mm and larger)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResponse Time\u003c\/td\u003e\n\u003ctd\u003e0.1 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Output\u003c\/td\u003e\n\u003ctd\u003e4-20 mA DC (max. 1000 Ohm load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePulse Output\u003c\/td\u003e\n\u003ctd\u003eTransistor contact, 30 VDC (OFF), 200 mA (ON), 0.0001-1000 pps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlarm Output\u003c\/td\u003e\n\u003ctd\u003eTransistor contact, 30 VDC (OFF), 200 mA (ON)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStatus Output\u003c\/td\u003e\n\u003ctd\u003e2 x Transistor contacts, 30 VDC (OFF), 200 mA (ON)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Protocols\u003c\/td\u003e\n\u003ctd\u003eBRAIN \/ HART\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Length Limit\u003c\/td\u003e\n\u003ctd\u003eUp to 2 km via PVC-sheathed control cables\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Protection\u003c\/td\u003e\n\u003ctd\u003eNEMA 4 equivalent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCase Material\u003c\/td\u003e\n\u003ctd\u003eAluminum alloy with polyurethane corrosion-resistant coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Options\u003c\/td\u003e\n\u003ctd\u003e2-inch pipe, panel, or surface mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrounding Resistance\u003c\/td\u003e\n\u003ctd\u003e100 Ohm maximum (10 Ohm maximum when utilizing surge arrestor function)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Storage\u003c\/td\u003e\n\u003ctd\u003eNon-volatile EEPROM (no backup battery required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control \u0026amp; DCS Instrumentation Properties\u003c\/h3\u003e\n\u003cp\u003eThe module utilizes a 4-20 mA HART loop protocol alongside the proprietary BRAIN communication layer to interface directly with distributed control system (DCS) architectures. To preserve signal integrity across long-distance topologies up to 2 km, the hardware maintains independent channel-to-channel isolation parameters between the primary flow tube excitation circuit and the analog\/pulse output terminals. Signal processing functions leverage dual-frequency excitation techniques to suppress slurry noise and fluid hydrodynamic variations, executing real-time digital filtering without introducing phase lag into the 4-20 mA control loop.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What are the specific load resistance boundaries for establishing digital communication with the AMM31?\u003c\/p\u003e\n\u003cp\u003eA: For BRAIN protocol communication, the loop must maintain a load resistance between 250 Ohm and 600 Ohm. For HART protocol configuration, the required loop resistance range is 230 Ohm and 600 Ohm.\u003c\/p\u003e\n\u003cp\u003eQ: How does the unit store calibration and configuration constants during a total power disruption?\u003c\/p\u003e\n\u003cp\u003eA: The device writes all operational parameters, flow tube constants, and multi-range settings directly to an internal EEPROM. This non-volatile storage method eliminates the need for lithium backup batteries and prevents data corruption during prolonged power outages.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding Infrastructure:\u003c\/strong\u003e Connect the module to an independent instrument ground. The grounding resistance must not exceed 100 Ohm for standard operations. If the hardware variant includes the integrated surge arrestor function, the grounding resistance must be maintained at 10 Ohm or less to safely dissipate transient overvoltages.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Cable Routing:\u003c\/strong\u003e Field wiring between the magnetic flow tube and the AMM31 converter must use dedicated PVC-sheathed control cables. Do not route these signal cables in parallel or within the same conduit as high-voltage AC power lines to avoid electromagnetic cross-talk. The maximum physical cable length must never exceed the 2 km specification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure Maintenance:\u003c\/strong\u003e To preserve the NEMA 4 equivalent environmental seal, verify that all conduit entries use appropriate weather-tight seals or glands. Ensure the aluminum alloy housing cover is fully threaded and seated against its gasket to inhibit moisture ingress in high-humidity processing zones.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43503868739674,"sku":"AMM31","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/368._418cbd81-7321-4831-aa7b-7bdcc5a1019c.jpg?v=1781576216","url":"https:\/\/www.spareoil.com\/products\/amm31-yokogawa-magnetic-flow-converter-new-original-stock","provider":"SpareOil Automation","version":"1.0","type":"link"}