{"product_id":"mc-prhm01-honeywell-remote-hardened-low-level-multiplexer","title":"MC-PRHM01 Honeywell Remote Hardened Low Level Multiplexer","description":"\u003cp\u003eThe \u003cstrong\u003eHoneywell MC-PRHM01\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eMC-PRHM01 51404109-175\u003c\/strong\u003e Remote Hardened Low Level Multiplexer, operates as a dedicated hardware component for low-level analog signal acquisition and channel scanning within Honeywell Process Manager (PM\/APM\/HPM) I\/O subsystems.\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\u003eMC-PRHM01 (51404109-175)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.52 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e30 mm x 314 mm x 278 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePowered via I\/O link backplane supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eRemote Hardened Low Level Multiplexer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Processing\u003c\/td\u003e\n\u003ctd\u003eLow-level analog signal (TC, mV) multiplexing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubsystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eHoneywell High Performance Process Manager (HPM) \/ APM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eStandard Process Manager I\/O File \/ Chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eCold Junction Compensation and Channel-to-Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe MC-PRHM01 low-level multiplexer conditions microvolt-level inputs from thermocouples and millivolt transducers before routing multiplexed data across the I\/O link bus. Precision internal cold junction compensation (CJC) circuits dynamically correct thermal electromotive force (EMF) offsets at terminal junction points. Integrated channel-to-channel isolation safeguards individual measurement paths against common-mode electrical noise, ground potential differentials, and external field interference typical of remote process control environments.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does removing or inserting the MC-PRHM01 module during active node operation disturb adjacent I\/O modules on the same link?\u003c\/p\u003e\n\u003cp\u003eA: Live extraction requires adhering to slot isolation rules; removing the module drops signal acquisition for connected low-level channels but does not disrupt backplane communication across unassociated I\/O file slots.\u003c\/p\u003e\n\u003cp\u003eQ: How does the module handle cold junction compensation reference updates across wide ambient thermal changes?\u003c\/p\u003e\n\u003cp\u003eA: On-board solid-state RTD sensors monitor terminal block temperatures continuously, providing immediate compensation coefficient updates to the analog-to-digital processing sub-circuit.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eInspect the card edge gold fingers and rear connector pins of the MC-PRHM01 module for physical distortion or debris before insertion.\u003c\/li\u003e\n\u003cli\u003eAlign the module circuit board with the top and bottom card guide tracks of the designated I\/O chassis slot.\u003c\/li\u003e\n\u003cli\u003ePush the module firmly into the slot until the backplane connectors seat completely and locking latches engage.\u003c\/li\u003e\n\u003cli\u003eEnsure thermocouple lead shields are grounded at a single point on the field termination assembly to prevent ground loops.\u003c\/li\u003e\n\u003cli\u003eSecure all field termination assembly (FTA) cable connectors to the front faceplate to ensure signal shield continuity and vibration resistance.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":67662096793909,"sku":"MC-PRHM01 51404109-175","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/51404109-175_Cocoai.png?v=1791538166","url":"https:\/\/www.5gplc.com\/products\/mc-prhm01-honeywell-remote-hardened-low-level-multiplexer","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}