{"product_id":"sec-e441x-horiba-stec-economy-series-200-slm-gas-flow-control-mfc","title":"SEC-E441X HORIBA STEC Economy Series 200 SLM Gas Flow Control MFC","description":"\n\u003ch3\u003e\u003cb\u003eSEC-E441X | High-Flow Gas Control with Economy Solenoid Technology\u003c\/b\u003e\u003c\/h3\u003e\n\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #0070C0;\"\u003eHORIBA STEC SEC-E441X\u003c\/span\u003e\u003c\/strong\u003e is a high-flow mass flow controller from the \u003cstrong\u003eSEC-E Economy Solenoid Valve Series\u003c\/strong\u003e. It regulates non-corrosive gas flow in industrial gas delivery systems.\u003c\/p\u003e\n\n\u003cp\u003eIts maximum full-scale capacity reaches \u003cstrong\u003e200 SLM (N2 equivalent)\u003c\/strong\u003e. The solenoid valve design supports economical gas flow control for applications with high-volume supply requirements.\u003c\/p\u003e\n\n\u003cp\u003eThe controller uses an analog electrical interface for setpoint and flow output signals. Its normally closed valve provides a defined valve state when power is removed.\u003c\/p\u003e\n\n\u003cp\u003eWith SUS316 stainless steel wetted components and fluorine-based sealing materials, the \u003cstrong\u003eSEC-E441X\u003c\/strong\u003e supports integration into compatible bulk gas supply and pump purge systems.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cb\u003e01 | Product Identity and Core Specifications\u003c\/b\u003e\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHORIBA STEC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan style=\"color: #0070C0;\"\u003eSEC-E441X\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSEC-E Economy Solenoid Valve Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAnalog Mass Flow Controller (MFC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Full-Scale Flow\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200 SLM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlow Reference Gas\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eN2 equivalent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupported Gas Category\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNon-corrosive gases\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5% to 100% FS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±1% FS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRepeatability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.5% FS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLinearity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.5% FS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResponse Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤2 seconds (T98, typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eValve Technology\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSolenoid valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower-Off Valve State\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNormally closed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeating Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard unheated version\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e\u003cb\u003e02 | Gas Path Construction and Pressure Limits\u003c\/b\u003e\u003c\/h3\u003e\n\n\u003cp\u003eThe gas-contact assembly combines stainless steel and polymer materials. These components support the specified non-corrosive gas applications.\u003c\/p\u003e\n\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWetted Stainless Steel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSUS316 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAdditional Wetted Materials\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFluorine rubber, PTFE, magnetic stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeal Materials\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFluorine rubber (Viton) \/ PTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Differential Pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200–350 kPa(d)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Inlet Pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e350 kPa(G)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePressure Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 MPa(G)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHelium Leak Integrity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤1 × 10⁻⁹ Pa·m³\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eMaterial selection note:\u003c\/strong\u003e Verify gas compatibility with the wetted materials and seals. Do not use this model for corrosive gases without explicit manufacturer approval.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cb\u003e03 | Analog Control and Electrical Requirements\u003c\/b\u003e\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetpoint Signal\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.25–5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlow Output Signal\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eElectrical Connector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eD-Sub connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePositive Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+15 VDC ±5%, 50 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNegative Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-15 VDC ±5%, 200 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.9 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cul\u003e\n\u003cli\u003eThe analog setpoint provides an external flow command.\u003c\/li\u003e\n\u003cli\u003eThe voltage output represents the controller's flow signal.\u003c\/li\u003e\n\u003cli\u003eThe D-Sub interface connects the controller to compatible control equipment.\u003c\/li\u003e\n\u003cli\u003eThe bipolar power supply requires suitable positive and negative voltage rails.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cb\u003e04 | Operating Conditions and Performance Envelope\u003c\/b\u003e\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5°C to 45°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy Guarantee Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15°C to 35°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandard Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUnheated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplicable Gas Category\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNon-corrosive gases\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThe controller operates within a 5°C to 45°C temperature range. Its specified accuracy applies within the narrower 15°C to 35°C range.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cb\u003e05 | Why Engineers Select the SEC-E441X\u003c\/b\u003e\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e200 SLM Flow Capacity:\u003c\/strong\u003e Handles high-volume gas delivery requirements within its specified configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEconomy Solenoid Design:\u003c\/strong\u003e Provides a cost-conscious approach to high-flow gas regulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNormally Closed Valve:\u003c\/strong\u003e Closes the solenoid valve when electrical power is removed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalog Signal Interface:\u003c\/strong\u003e Supports voltage-based setpoint and flow monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless Steel Gas Path:\u003c\/strong\u003e Uses SUS316 stainless steel and compatible sealing materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDefined Pressure Envelope:\u003c\/strong\u003e Provides specified differential and inlet pressure limits for system design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelium Leak Specification:\u003c\/strong\u003e Supports evaluation of gas-path sealing performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cb\u003e06 | High-Flow Application Scenarios\u003c\/b\u003e\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBulk Gas Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRegulates high-volume non-corrosive gas delivery in compatible supply systems.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePump Purge Systems\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eControls purge gas flow for suitable industrial and semiconductor equipment.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGas Distribution Panels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eProvides analog flow regulation within compatible gas delivery assemblies.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIndustrial Gas Equipment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSupports high-flow gas supply where the specified materials and pressure limits apply.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProcess Equipment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eProvides voltage-controlled gas flow regulation for compatible machinery.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e\u003cb\u003e07 | Installation and System Integration\u003c\/b\u003e\u003c\/h3\u003e\n\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfirm Gas Compatibility:\u003c\/strong\u003e Verify the process gas against the approved material and calibration configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck Flow Capacity:\u003c\/strong\u003e Confirm that 200 SLM suits the required operating flow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify Pressure Conditions:\u003c\/strong\u003e Maintain the specified differential and inlet pressure limits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInspect Gas Connections:\u003c\/strong\u003e Confirm the connection specification before assembling the piping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnect Analog Signals:\u003c\/strong\u003e Match the setpoint and output wiring with the equipment interface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify Power Rails:\u003c\/strong\u003e Check positive and negative supply voltages before energizing the unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfigure Control Logic:\u003c\/strong\u003e Match the PLC or controller scaling with the specified voltage ranges.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck Valve Operation:\u003c\/strong\u003e Verify normally closed behavior during power removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerform Leak Testing:\u003c\/strong\u003e Follow approved procedures before introducing process gas.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003e\u003cb\u003e08 | Commissioning and Preventive Maintenance\u003c\/b\u003e\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero-Flow Check:\u003c\/strong\u003e Verify the output under the manufacturer's specified zero-flow conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Calibration:\u003c\/strong\u003e Check the analog setpoint and feedback scaling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow Verification:\u003c\/strong\u003e Compare the output against a suitable calibrated flow reference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Monitoring:\u003c\/strong\u003e Check actual inlet and outlet pressure conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Inspection:\u003c\/strong\u003e Investigate delayed response or unstable flow behavior.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeak Inspection:\u003c\/strong\u003e Examine gas connections after installation and maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Inspection:\u003c\/strong\u003e Monitor both supply rails for voltage stability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental Control:\u003c\/strong\u003e Maintain the recommended accuracy temperature range where precision is critical.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cb\u003e09 | Compatibility and Replacement Considerations\u003c\/b\u003e\u003c\/h3\u003e\n\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #0070C0;\"\u003eSEC-E441X\u003c\/span\u003e\u003c\/strong\u003e uses an analog interface and a normally closed solenoid valve. Replacement selection requires electrical, mechanical, and process compatibility checks.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eConfirm the SEC-E Economy Solenoid Valve Series designation.\u003c\/li\u003e\n\u003cli\u003eVerify the 200 SLM N2-equivalent full-scale configuration.\u003c\/li\u003e\n\u003cli\u003eMatch the process gas with the specified wetted materials.\u003c\/li\u003e\n\u003cli\u003eCheck the analog voltage ranges and D-Sub connector arrangement.\u003c\/li\u003e\n\u003cli\u003eConfirm the bipolar power supply requirements.\u003c\/li\u003e\n\u003cli\u003eVerify pressure conditions and gas connection dimensions.\u003c\/li\u003e\n\u003cli\u003eCheck the normally closed valve requirement.\u003c\/li\u003e\n\u003cli\u003eConfirm the accuracy requirements at the actual operating temperature.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The supplied specifications identify a 3\/8-inch Swagelok connection as a key feature. Confirm the exact fitting configuration before ordering or replacing the unit.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cb\u003e10 | Compliance and Technical Standards\u003c\/b\u003e\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSEMI Standards:\u003c\/strong\u003e Compliance with SEMI standards is indicated in the supplied product information.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGas Compatibility:\u003c\/strong\u003e Specified for non-corrosive gas applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeak Integrity:\u003c\/strong\u003e Helium leak specification of ≤1 × 10⁻⁹ Pa·m³\/s.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eSpecific SEMI standard numbers and supporting certificates require manufacturer documentation. Verify project-specific compliance requirements before installation.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cb\u003e11 | Ordering and Supply Information\u003c\/b\u003e\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e HORIBA STEC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e \u003cstrong\u003e\u003cspan style=\"color: #0070C0;\"\u003eSEC-E441X\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e SEC-E Economy Solenoid Valve\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e High-Flow Mass Flow Controller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-Scale Capacity:\u003c\/strong\u003e 200 SLM, N2 equivalent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New \u0026amp; Original in Factory Packing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Factory Warranty: 12 Months\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping:\u003c\/strong\u003e FedEx, UPS, and DHL available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003ePackage Contents:\u003c\/strong\u003e One SEC-E441X mass flow controller. Confirm connection accessories and other configuration-specific items before ordering.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cb\u003e12 | Global PLC Spare HUB – Application Insight\u003c\/b\u003e\u003c\/h3\u003e\n\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #0070C0;\"\u003eHORIBA STEC SEC-E441X\u003c\/span\u003e\u003c\/strong\u003e targets high-flow applications that require economical analog gas regulation. Its 200 SLM capacity makes pressure management and upstream supply design important selection factors.\u003c\/p\u003e\n\n\u003cp\u003eEngineers should pay particular attention to the 5% FS lower control limit. At a 200 SLM full-scale setting, this represents a nominal lower control boundary of 10 SLM.\u003c\/p\u003e\n\n\u003cp\u003eThe accuracy specification uses full scale as its reference. At 200 SLM, ±1% FS corresponds to ±2 SLM under the specified accuracy conditions. This distinction matters when evaluating low-flow process requirements.\u003c\/p\u003e\n\n\u003cp\u003eThe normally closed solenoid valve also affects system behavior during power interruption. Engineers should evaluate the resulting gas isolation behavior within the complete equipment safety design.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cb\u003e13 | Frequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ1: Is the SEC-E441X suitable for applications requiring very low flow rates?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIts specified control range starts at 5% FS. For a 200 SLM configuration, this equals 10 SLM. Applications below this boundary require a different full-scale configuration or another suitable controller.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ2: How does the normally closed valve affect equipment shutdown design?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe valve closes when electrical power is removed. Engineers should consider this behavior when designing shutdown sequences and restart procedures. Verify whether additional isolation devices or safety measures are necessary.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ3: Can the controller connect directly to a PLC analog output and input?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIts 0.25–5 VDC setpoint and 0–5 VDC output support compatible voltage interfaces. Check PLC signal ranges, common references, grounding, and D-Sub pin assignments. Do not assume direct wiring without checking the electrical documentation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ4: Why can actual flow accuracy differ from the nominal ±1% FS specification?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eOperating temperature, gas calibration, pressure differential, and installation conditions can influence system performance. The stated accuracy guarantee applies from 15°C to 35°C. Use a suitable reference instrument during commissioning to verify actual performance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ5: When should buyers choose a 200 SLM controller instead of a smaller model?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eChoose the full-scale range according to normal operating flow and required control margin. Avoid excessive oversizing because full-scale accuracy affects absolute flow deviation. For example, a 200 SLM model may not suit a process that normally operates below 10 SLM.\u003c\/p\u003e\n","brand":"HORIBA","offers":[{"title":"Default Title","offer_id":68027795964086,"sku":"SEC-E441X","price":148.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/SEC-E441X_1_696a870d-96e2-42d7-afc4-950fb3105104.jpg?v=1794281725","url":"https:\/\/www.plcsparehub.com\/products\/sec-e441x-horiba-stec-economy-series-200-slm-gas-flow-control-mfc","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}