{"product_id":"yokogawa-aai143-h53-analog-input-module","title":"Yokogawa AAI143-H53 Analog Input Module","description":"\u003cp\u003eThe Yokogawa AAI143-H53 is a 16-channel isolated analog input module designed to acquire 4-20 mA DC signals from field transmitters. It supports HART digital communication and provides channel-level signal acquisition for process control systems. This model includes the ISA Standard G3 option and an extended operating temperature specification of -20 to 70 deg C.\u003c\/p\u003e\n\u003ch3\u003eFunctional Description\u003c\/h3\u003e\n\u003cp\u003eThe AAI143-H53 receives analog current signals from 2-wire or 4-wire field transmitters and converts them into digital process data for the control system. Its 16 isolated input channels support the acquisition of multiple process variables, such as pressure, flow, level and temperature measurements transmitted as 4-20 mA signals.\u003c\/p\u003e\n\u003cp\u003eThe HART communication function allows digital instrument information to be exchanged alongside the analog measurement signal. This provides access to supported smart-transmitter data in addition to the primary process value.\u003c\/p\u003e\n\u003ch3\u003eInput Characteristics and Signal Processing\u003c\/h3\u003e\n\u003cp\u003eThe module uses a 4-20 mA input range with a data update period of 10 ms. Its specified accuracy is +\/-16 uA, allowing the control system to process analog measurements at the module's stated accuracy level.\u003c\/p\u003e\n\u003cp\u003eThe allowable input current is 24 mA. The transmitter supply provides at least 19.0 V at 20 mA, with a maximum voltage of 25.5 V at 0 mA and an output current limit of 25 mA. These values should be considered when checking the electrical requirements of connected transmitters.\u003c\/p\u003e\n\u003ch3\u003eIsolation and Environmental Protection\u003c\/h3\u003e\n\u003cp\u003eThe input circuitry provides module-level isolation between the field signal circuits and the control system. The specified withstand voltage is 1500 V AC for 1 minute between the input and system sides. Input resistance varies with the operating current, so the voltage drop across the module should be included when checking the transmitter loop's available voltage.\u003c\/p\u003e\n\u003cp\u003eThe H53 configuration combines HART communication with the non-explosion-protection version and the ISA Standard G3 option. The G3 option is intended for environments with corrosive gases, while the specified temperature option extends the module's operating range to -20 to 70 deg C.\u003c\/p\u003e\n\u003ch3\u003eModel Configuration\u003c\/h3\u003e\n\u003cp\u003eThe AAI143-H53 suffix codes identify the main hardware configuration:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eH: Digital communication with HART protocol.\u003c\/li\u003e\n\u003cli\u003e5: Version without explosion protection.\u003c\/li\u003e\n\u003cli\u003e3: ISA Standard G3 option and -20 to 70 deg C temperature option.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese codes describe the module configuration and should be checked against the installed hardware when selecting a replacement.\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\u003eAAI143-H53\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\u003eInput Signal\u003c\/td\u003e\n\u003ctd\u003e4-20 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\u003eIsolated between field and system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAllowable Input Current\u003c\/td\u003e\n\u003ctd\u003e24 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Resistance (Power ON)\u003c\/td\u003e\n\u003ctd\u003e270 ohm (20 mA) to 350 ohm (4 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Resistance (Power OFF)\u003c\/td\u003e\n\u003ctd\u003e500 kohm or higher\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e+\/-16 uA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Update Period\u003c\/td\u003e\n\u003ctd\u003e10 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmitter Power Supply\u003c\/td\u003e\n\u003ctd\u003e19.0 V minimum at 20 mA; 25.5 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\u003eWithstand Voltage\u003c\/td\u003e\n\u003ctd\u003e1500 V AC for 1 minute (input to system)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHART Communication\u003c\/td\u003e\n\u003ctd\u003eSupported\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\u003eCorrosive Gas Protection\u003c\/td\u003e\n\u003ctd\u003eISA Standard G3\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 AAI143-H53 support HART communication?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The module supports HART digital communication, allowing compatible field devices to provide additional digital variables alongside their 4-20 mA analog signals. HART communication requires compatible field instruments and system configuration.\u003c\/p\u003e\n\u003cp\u003eQ: Can the module connect to both 2-wire and 4-wire transmitters?\u003c\/p\u003e\n\u003cp\u003eA: The AAI143 hardware supports 2-wire and 4-wire transmitter configurations. The transmitter type is selected for each channel using the module setting pin. Check the actual wiring arrangement and transmitter power requirements before commissioning.\u003c\/p\u003e\n\u003cp\u003eQ: Is the AAI143-H53 suitable for explosive atmospheres?\u003c\/p\u003e\n\u003cp\u003eA: No. The suffix code 5 identifies the version without explosion protection. The ISA Standard G3 option provides corrosive-gas environmental protection, not hazardous-area explosion certification.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":47397960581362,"sku":"AAI143-H53","price":245.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0730\/5589\/5794\/files\/AAI143-H5301.jpg?v=1742441338","url":"https:\/\/www.petrospare.com\/products\/yokogawa-aai143-h53-analog-input-module","provider":"Petro Spare Industrial Limited","version":"1.0","type":"link"}