{"product_id":"rh400-pid-digital-industrial-temperature-controller-ssr-relay","title":"RH400 PID Digital Industrial Temperature Controller SSR Relay","description":"\n\u003ch2\u003eRH400 PID Digital Industrial Temperature Controller with SSR Relay Output\u003c\/h2\u003e\n\u003cp\u003eTake full command of your industrial heating or cooling processes with the \u003cstrong\u003eCKCTINNER RH400 PID Digital Temperature Controller\u003c\/strong\u003e. Engineered for precision and reliability, this CE-certified unit supports multiple sensor input types, advanced PID auto-tuning, and a range of output configurations — making it a versatile choice for manufacturing, process automation, lab environments, and more.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eMade in Mainland China.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Accuracy:\u003c\/strong\u003e ±0.5% of full scale for dependable, repeatable temperature management\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Supply Voltage:\u003c\/strong\u003e 100–240V AC, 50\/60 Hz — works with virtually any standard electrical supply\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMultiple Input Types:\u003c\/strong\u003e Supports Thermocouple (K, J, R, S, B, E, N, T), RTD (Pt100, Cu50), and Current (0–20 mA, 4–20 mA)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlexible Output Options:\u003c\/strong\u003e Electromagnetic relay, SSR (Solid State Relay), current output, and SCR — adaptable to your existing setup\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdvanced PID Control:\u003c\/strong\u003e PID with auto-tuning, self-tuning, and ON\/OFF modes — easily selected via touch switch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComprehensive Alarm System:\u003c\/strong\u003e Deviation High\/Low, Band, Process High\/Low, and Set Value High\/Low alarms keep your process in check\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Sampling:\u003c\/strong\u003e 0.5-second sampling period for rapid response to temperature changes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStrong EMC Rating:\u003c\/strong\u003e IEC61000-4-4 (4 kV\/5 kHz) and IEC61000-4-5 (4 kV surge) — robust against electrical interference in demanding industrial settings\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Isolation Voltage:\u003c\/strong\u003e ≥2300V between power, relay contact, and signal terminals; ≥600V between isolated weak signal terminals\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDigital LED Display:\u003c\/strong\u003e Clear, easy-to-read digital readout with LED indication for at-a-glance monitoring\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Power Consumption:\u003c\/strong\u003e Less than 5 VA — energy-efficient operation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE Certified:\u003c\/strong\u003e Meets European safety and quality standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRH400\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100–240V AC, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.5% of full scale\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThermocouple Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eK, J, R, S, B, E, N, T\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRTD Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePt100, Cu50\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–20 mA, 4–20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Types\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectromagnetic Relay, SSR, Current, SCR\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePID (Auto-tuning \/ Self-tuning), ON\/OFF\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSampling Period\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.5 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;5 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–50°C (32–122°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30–85% RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eIndustrial ovens, furnaces, and kilns\u003c\/li\u003e\n  \u003cli\u003ePlastic injection moulding and extrusion machinery\u003c\/li\u003e\n  \u003cli\u003eHVAC and building automation systems\u003c\/li\u003e\n  \u003cli\u003eFood processing and laboratory equipment\u003c\/li\u003e\n  \u003cli\u003ePackaging machinery and heat-sealing equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/360-bicycle-chain-cleaner-tool-gear-cleaning-kit\"\u003e360° Bicycle Chain Cleaner Tool | Bike Gear Cleaning Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What input sensor types does the RH400 PID temperature controller support?\u003c\/h4\u003e\n\u003cp\u003eA: The RH400 supports a wide range of input types, including thermocouples (K, J, R, S, B, E, N, T), RTDs (Pt100 and Cu50), and current inputs (0–20 mA and 4–20 mA), making it compatible with most industrial temperature sensing setups.\u003c\/p\u003e\n\u003ch4\u003eQ: What output types are available on the RH400 temperature controller?\u003c\/h4\u003e\n\u003cp\u003eA: The RH400 offers four output types: Electromagnetic Relay, SSR (Solid State Relay), current output, and SCR. This flexibility allows it to integrate with a broad range of industrial control systems and actuators.\u003c\/p\u003e\n\u003ch4\u003eQ: Does the RH400 PID controller support auto-tuning?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The RH400 features PID control with auto-tuning and self-tuning capabilities, as well as a simple ON\/OFF control mode. All settings are adjusted via an easy-to-use touch switch interface.\u003c\/p\u003e\n\u003ch4\u003eQ: What voltage does the RH400 digital temperature controller require?\u003c\/h4\u003e\n\u003cp\u003eA: The RH400 operates on a universal supply voltage of 100–240V AC at 50\/60 Hz, so it is compatible with standard electrical systems in most countries without the need for a separate transformer.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What input sensor types does the RH400 PID temperature controller support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The RH400 supports a wide range of input types, including thermocouples (K, J, R, S, B, E, N, T), RTDs (Pt100 and Cu50), and current inputs (0–20 mA and 4–20 mA), making it compatible with most industrial temperature sensing setups.\"}}, {\"@type\": \"Question\", \"name\": \"What output types are available on the RH400 temperature controller?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The RH400 offers four output types: Electromagnetic Relay, SSR (Solid State Relay), current output, and SCR. 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