{"product_id":"yokogawa-sai143-s53-a4s00-analog-input-module","title":"Yokogawa SAI143-S53\/A4S00 Analog Input Module","description":"\u003cp\u003eThe Yokogawa SAI143-S53\/A4S00 is a 16-channel analog input module designed to receive 4-20 mA current signals from field transmitters. It provides module isolation, individual channel selection for 2-wire or 4-wire transmitter connections, and configurable transmitter power supply control. This version uses a pressure clamp terminal block and has ISA Standard G3 environmental specifications.\u003c\/p\u003e\n\u003ch3\u003eFunctional Description\u003c\/h3\u003e\n\u003cp\u003eThe SAI143-S53\/A4S00 converts field current signals into input data for the control system. Its 16 input channels support a rated range of 4-20 mA, with a permissible input range of 0-25 mA. Module isolation separates the input signal circuits from the system side, with a specified withstand voltage of 1.5 kV AC for one minute.\u003c\/p\u003e\n\u003cp\u003eThe module has a data update frequency of 40 ms. This determines how frequently updated input values are made available to the control system and should be considered when evaluating process signal response requirements.\u003c\/p\u003e\n\u003ch3\u003eTransmitter Connection and Power Supply\u003c\/h3\u003e\n\u003cp\u003eEach channel can be configured individually for 2-wire or 4-wire transmitter operation through setting pins. For 2-wire transmitters, the module provides loop power, with a minimum supply voltage of 16.15 V at 20 mA and a maximum of 26.4 V at 0 mA. The output current limit is 25 mA.\u003c\/p\u003e\n\u003cp\u003eThe transmitter power supply ON\/OFF function is available in 2-wire mode. It operates across all 16 channels simultaneously rather than providing independent power switching for each channel. This distinction is relevant when planning transmitter power isolation and maintenance procedures.\u003c\/p\u003e\n\u003ch3\u003eInput Accuracy and Electrical Characteristics\u003c\/h3\u003e\n\u003cp\u003eFor the standard SAI143-S version, the rated accuracy is +\/-16 uA over an input range of 1-23 mA. Temperature drift is specified as +\/-16 uA per 10 deg C. The accuracy range should be distinguished from the module's wider permissible input range of 0-25 mA.\u003c\/p\u003e\n\u003cp\u003eDuring power-on, the input impedance is specified as 250 ohms plus the voltage drop in the module's internal input protection circuit. During power-off, the input impedance is at least 500 kohms. These characteristics affect the electrical loading seen by connected field transmitters.\u003c\/p\u003e\n\u003ch3\u003eModel Configuration and Terminal Block\u003c\/h3\u003e\n\u003cp\u003eThe ordering code identifies the hardware configuration:\u003c\/p\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eCode\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSAI143\u003c\/td\u003e\n\u003ctd\u003e4-20 mA, 16-channel isolated analog input module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e-S\u003c\/td\u003e\n\u003ctd\u003eStandard type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003ePressure clamp terminal block or MIL cable configuration, without explosion protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eISA Standard G3 and operating temperature range of -20 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\/A4S00\u003c\/td\u003e\n\u003ctd\u003ePressure clamp terminal block for analog signals, model STA4S-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003eThe complete order code SAI143-S53\/A4S00 therefore identifies the standard, non-explosion-protected module with ISA G3 environmental specifications and a pressure clamp terminal block. The terminal block option is STA4S-00.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\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\u003eSAI143-S53\/A4S00\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\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eAnalog Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Input Channels\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Type\u003c\/td\u003e\n\u003ctd\u003e4-20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Input Range\u003c\/td\u003e\n\u003ctd\u003e4-20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePermissible Input Range\u003c\/td\u003e\n\u003ctd\u003e0-25 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Isolation\u003c\/td\u003e\n\u003ctd\u003eModule isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Accuracy\u003c\/td\u003e\n\u003ctd\u003e+\/-16 uA (1-23 mA input range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Update Frequency\u003c\/td\u003e\n\u003ctd\u003e40 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Drift\u003c\/td\u003e\n\u003ctd\u003e+\/-16 uA\/10 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance (Power-ON)\u003c\/td\u003e\n\u003ctd\u003e250 ohms + voltage drop in internal input protection circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance (Power-OFF)\u003c\/td\u003e\n\u003ctd\u003e500 kohms minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmitter Power Supply\u003c\/td\u003e\n\u003ctd\u003e16.15 V minimum at 20 mA; 26.4 V maximum at 0 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmitter Supply Current Limit\u003c\/td\u003e\n\u003ctd\u003e25 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmitter Configuration\u003c\/td\u003e\n\u003ctd\u003eIndividually selectable 2-wire or 4-wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmitter Power ON\/OFF\u003c\/td\u003e\n\u003ctd\u003eAvailable in 2-wire mode; all 16 channels switched simultaneously\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWithstand Voltage\u003c\/td\u003e\n\u003ctd\u003e1.5 kV AC between input signal and system for 1 minute\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Current Consumption\u003c\/td\u003e\n\u003ctd\u003e320 mA (5 V system); 550 mA (24 V system)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Connection\u003c\/td\u003e\n\u003ctd\u003ePressure clamp terminal block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Block Model\u003c\/td\u003e\n\u003ctd\u003eSTA4S-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironmental Specification\u003c\/td\u003e\n\u003ctd\u003eISA Standard G3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-20 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.34 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the SAI143-S53\/A4S00 support HART communication?\u003c\/p\u003e\n\u003cp\u003eA: No. The -S designation identifies the standard version. HART communication is associated with the SAI143-H version and should not be assumed for this model.\u003c\/p\u003e\n\u003cp\u003eQ: Can the module support both 2-wire and 4-wire transmitters?\u003c\/p\u003e\n\u003cp\u003eA: Yes. Each input channel can be configured individually for 2-wire or 4-wire operation using setting pins. However, the transmitter power supply ON\/OFF function is available only in 2-wire mode and switches all 16 channels simultaneously.\u003c\/p\u003e\n\u003cp\u003eQ: Is the STA4S-00 terminal block included in this configuration?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The \/A4S00 option specifies the analog pressure clamp terminal block STA4S-00. This ordering configuration should be distinguished from versions supplied for MIL cable connections or signal cable interface adapters.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":69254068338930,"sku":"SAI143-S53\/A4S00","price":235.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0730\/5589\/5794\/files\/SAI143-S53__1.jpg?v=1744785062","url":"https:\/\/www.petrospare.com\/products\/yokogawa-sai143-s53-a4s00-analog-input-module","provider":"Petro Spare Industrial Limited","version":"1.0","type":"link"}