{"product_id":"yokogawa-sai143-s03-k4a00-analog-input-module","title":"Yokogawa SAI143-S03\/K4A00 Analog Input Module","description":"\u003cp\u003eThe Yokogawa \u003cstrong\u003eSAI143-S03\/K4A00\u003c\/strong\u003e is identified as an analog input module for the CENTUM-series distributed control system (DCS). It is intended for acquiring analog field signals and transferring measurement data to the control system for monitoring and process control. The exact input signal range, channel configuration, isolation characteristics, and suffix-specific functions should be confirmed against the applicable hardware specification before installation or replacement.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eInput Signal and Channel Configuration\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe module handles \u003cstrong\u003e4 to 20 mA DC current signals\u003c\/strong\u003e from field transmitters and other compatible process instruments. Its 16 input channels provide module-level isolation between the field input circuits and the system side, helping separate field signal circuits from internal system electronics.\u003c\/p\u003e\n\u003cp\u003eEach channel acquires an analog measurement for processing by the safety control system. The current signal represents a process variable such as pressure, flow, temperature or level when used with an appropriately configured transmitter.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSignal Acquisition and Electrical Characteristics\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe standard SAI143 configuration is designed for current-loop measurement rather than voltage-input applications. The 4 to 20 mA range is the nominal measurement range; the permissible input range and accuracy limits should be considered separately when checking field signal conditions.\u003c\/p\u003e\n\u003cp\u003eThe module specification lists a 40 ms data update frequency and an accuracy of +\/-16 uA for the standard SAI143-S input range of 1 to 23 mA. These characteristics are relevant when evaluating signal resolution, measurement variation and control-system update requirements.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eParameter Specifications\u003c\/strong\u003e\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-S03\/K4A00\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\u003eSystem\u003c\/td\u003e\n\u003ctd\u003eProSafe-RS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal\u003c\/td\u003e\n\u003ctd\u003e4 to 20 mA DC\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\u003eChannel Isolation\u003c\/td\u003e\n\u003ctd\u003eModule isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePermissible Input Current\u003c\/td\u003e\n\u003ctd\u003e0 to 25 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Accuracy\u003c\/td\u003e\n\u003ctd\u003e+\/-16 uA (1 to 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\u003eInput Impedance (Power ON)\u003c\/td\u003e\n\u003ctd\u003e250 ohm + current value\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance (Power OFF)\u003c\/td\u003e\n\u003ctd\u003e500 kohm minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmitter Supply Voltage\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\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\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 at 5 V DC; 550 mA at 24 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e\u003cstrong\u003eField Signal and Transmitter Requirements\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe SAI143 supports 2-wire and 4-wire transmitter configurations. The selection is made individually for each channel using the module setting pins. This distinction is important when preparing the field wiring because a 2-wire transmitter uses the current loop for both power and signal transmission, whereas a 4-wire transmitter has a separate power supply.\u003c\/p\u003e\n\u003cp\u003eFor 2-wire configurations, the module provides transmitter power. The transmitter supply specification must be checked against the connected instrument's operating voltage and current requirements.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the SAI143-S03\/K4A00 support HART communication?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The SAI143-S03 is the standard non-HART configuration. HART communication is associated with the SAI143-H variant. The two configurations should not be treated as interchangeable when HART functionality is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the module accept both 2-wire and 4-wire transmitters?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes. The SAI143 supports both transmitter arrangements, with the selection configured individually for each input channel using the module setting pins.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What should be checked before replacing an existing SAI143 module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Verify the complete model number, input signal type, channel configuration, field wiring and terminal interface. The \/K4A00 option should also be checked against the installed cable adapter and terminal board before ordering a replacement.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":69307756839154,"sku":"SAI143-S03\/K4A00","price":245.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0730\/5589\/5794\/files\/SAI143-S03K4A002.jpg?v=1794534946","url":"https:\/\/www.petrospare.com\/products\/yokogawa-sai143-s03-k4a00-analog-input-module","provider":"Petro Spare Industrial Limited","version":"1.0","type":"link"}