{"product_id":"mtl5042-repeater-power-supply-for-4-20ma-transmitters","title":"MTL5042 Repeater Power Supply for 4-20mA Transmitters","description":"\u003ch3\u003eSystem Architecture Overview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #d84315;\"\u003e\u003cstrong\u003eMTL5042\u003c\/strong\u003e\u003c\/span\u003e serves as a high-precision, fully-floating DC supply designed for energizing 2-wire or 3-wire 4\/20mA transmitters stationed in hazardous environments (Zone 0\/Div 1). This repeater unit isolates and repeats the input signal into a secondary floating circuit for safe-area loading. Built for smart instrumentation, it supports bi-directional HART, Honeywell DE, Foxboro, and Yokogawa Brain digital communication protocols superimposed on the analog loop.\u003c\/p\u003e\n\u003ch3\u003ePrecision Technical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \u0026amp; Model:\u003c\/strong\u003e MTL \u003cspan style=\"color: #d84315;\"\u003e\u003cstrong\u003eMTL5042\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannels:\u003c\/strong\u003e Single-channel galvanic isolation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Range:\u003c\/strong\u003e 4–20mA input\/output (0–24mA over-range support)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e \u0026lt;10µA transfer accuracy at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Stability:\u003c\/strong\u003e \u0026lt;0.5µA\/°C drift\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResponse Speed:\u003c\/strong\u003e Settles within 10% in \u0026lt;40µs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoop Impedance:\u003c\/strong\u003e 0 to 600Ω safe-area load resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBandwidth:\u003c\/strong\u003e 10Hz to 12kHz digital signal support\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupply Requirement:\u003c\/strong\u003e 20V to 35V DC input\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdvanced Diagnostic \u0026amp; Visual Cues\u003c\/h3\u003e\n\u003cp\u003eTroubleshooting is simplified through the integrated green Power LED. This indicator confirms the availability of the auxiliary supply voltage to the module. The unit’s galvanic isolation design minimizes ground loop errors that typically plague conventional signal conversion, ensuring your safety-area control system receives an accurate, low-ripple (\u0026lt;40µA) signal.\u003c\/p\u003e\n\u003ch3\u003eIndustrial Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePetrochemical \u0026amp; Refineries: Essential for Zone 0 transmitter power and signal repetition.\u003c\/li\u003e\n\u003cli\u003eFlow \u0026amp; Pressure Monitoring: High-bandwidth support for smart (HART) sensors.\u003c\/li\u003e\n\u003cli\u003eHazardous Material Handling: Integrated safety barriers prevent electrical energy discharge.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eGlobal PLC Spare HUB's Insight\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #d84315;\"\u003e\u003cstrong\u003eMTL5042\u003c\/strong\u003e\u003c\/span\u003e is a staple in intrinsically safe (IS) design. Our engineers appreciate its transparent communication capability; it is one of the few repeaters that maintains digital signal bandwidth without degrading HART protocol packets. When maintaining legacy loops, replacing old barriers with this model often cleans up signal noise instantly. It is the premier choice for process automation where precision is as vital as safety.\u003c\/p\u003e\n\u003ch3\u003eLogistics and Quality Assurance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping:\u003c\/strong\u003e Expedited worldwide delivery via FedEx, UPS, and DHL.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead Time:\u003c\/strong\u003e Fast fulfillment within 24-48 hours.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality Guarantee:\u003c\/strong\u003e Full 12-month performance warranty on all units.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eExpert Frequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I connect a Handheld Communicator (HHC) for HART diagnostics?\u003c\/strong\u003e\u003cbr\u003eYou can connect your HART communicator across terminals 4 and 5 (or 8 and 9), which provides a dedicated tapping point without interrupting the primary 4-20mA control signal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the MTL5042 consume significantly more power if the field device pulls 20mA?\u003c\/strong\u003e\u003cbr\u003eAt 24V supply voltage, the module consumes approximately 75mA, maintaining stable power dissipation around 1.3W even under full-load conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this barrier be used for non-HART sensors?\u003c\/strong\u003e\u003cbr\u003eYes, it is backward compatible with all conventional 2-wire and 3-wire 4-20mA sensors, providing an isolated, regulated DC supply regardless of the signal protocol.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is the signal ripple limited to \u0026lt;40µA?\u003c\/strong\u003e\u003cbr\u003eThis low-ripple threshold is critical for high-resolution PLC analog input cards, preventing jitter in your control loop readings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePurchasing Advice: Should I use screw or spring-clamp connectors?\u003c\/strong\u003e\u003cbr\u003eIf your cabinet is subject to vibration, the spring-clamp option provides superior mechanical retention; otherwise, standard screw terminals are sufficient for fixed installation scenarios.\u003c\/p\u003e\n\u003ch3\u003eSelection Guidance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure that your transmitter’s voltage requirement is compatible with the 16.5V supply at 20mA provided by the \u003cspan style=\"color: #d84315;\"\u003e\u003cstrong\u003eMTL5042\u003c\/strong\u003e\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003eIf you are using digital protocols other than HART, double-check the bandwidth compatibility to ensure the unit does not attenuate the high-frequency diagnostic packets.\u003c\/li\u003e\n\u003cli\u003eAlways verify the safety loop parameters to confirm the \u0026lt;28V open-circuit voltage restriction is met.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MTL","offers":[{"title":"Default Title","offer_id":45014021800118,"sku":"MTL5042","price":141.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/MTL5042_3.jpg?v=1780306157","url":"https:\/\/www.plcsparehub.com\/products\/mtl5042-repeater-power-supply-for-4-20ma-transmitters","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}