{"product_id":"yokogawa-aai143-h53-a4d00-analog-input-module","title":"Yokogawa AAI143-H53\/A4D00 Analog Input Module","description":"\u003cp\u003eThe Yokogawa AAI143-H53\/A4D00 is a 16-channel isolated analog input module for receiving 4-20 mA DC signals from field transmitters. It supports HART digital communication for instrument data access and combines the H53 module configuration with an A4D00 dual pressure clamp terminal block. The module also includes the ISA Standard G3 option and an extended operating temperature configuration.\u003c\/p\u003e\n\u003ch3\u003eFunctional Description\u003c\/h3\u003e\n\u003cp\u003eThe AAI143 receives analog current signals from 2-wire or 4-wire transmitters and converts them into digital input data for the control system. Its 16 input channels support process-variable acquisition, allowing multiple field instruments to connect through one I\/O module.\u003c\/p\u003e\n\u003cp\u003eThe HART communication function allows supported smart transmitters to exchange digital instrument information over the 4-20 mA signal loop. This provides access to additional device information beyond the primary analog process value.\u003c\/p\u003e\n\u003ch3\u003eInput Configuration and Signal Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe module accepts standard 4-20 mA DC input signals, with an allowable input current of up to 24 mA. The input resistance varies with the signal current when the module is powered, affecting the voltage available to the connected transmitter.\u003c\/p\u003e\n\u003cp\u003eEach channel can be configured for a 2-wire or 4-wire transmitter using the module setting pin. For 2-wire transmitters, the module provides a transmitter supply with a specified output current limit. External wiring voltage drop must be considered when checking the minimum operating voltage at the field instrument.\u003c\/p\u003e\n\u003ch3\u003eIsolation and Electrical Performance\u003c\/h3\u003e\n\u003cp\u003eThe AAI143 provides isolation between the field input and the control system, with a withstand voltage of 1500 V AC for 1 minute under the specified pressure-clamp connection configuration. This isolation helps separate field-side electrical conditions from the system-side circuitry.\u003c\/p\u003e\n\u003cp\u003eThe 10 ms data update period supports regular acquisition of changing process signals. The specified accuracy is ±16 uA, while ambient-temperature-related drift is ±16 uA per 10 deg C. These values are relevant when evaluating measurement accuracy across the module's operating temperature range.\u003c\/p\u003e\n\u003ch3\u003eModel Suffix and Terminal Configuration\u003c\/h3\u003e\n\u003cp\u003eThe ordering code identifies the following configuration:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAAI143: 16-channel isolated analog input module for 4-20 mA signals.\u003c\/li\u003e\n\u003cli\u003e-H: HART digital communication support.\u003c\/li\u003e\n\u003cli\u003e5: Configuration without explosion protection.\u003c\/li\u003e\n\u003cli\u003e3: ISA Standard G3 option and extended temperature option (-20 to 70 deg C).\u003c\/li\u003e\n\u003cli\u003e\/A4D00: Dual pressure clamp terminal block option, associated with terminal block model ATA4D-00.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe A4D00 option identifies the field termination arrangement. It should not be interpreted as proof of dual-redundant module operation. The terminal configuration and module redundancy are separate selection considerations.\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\/A4D00\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 Configuration\u003c\/td\u003e\n\u003ctd\u003eIsolated\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\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\u003e270-350 ohm\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\u003eWithstand Voltage\u003c\/td\u003e\n\u003ctd\u003e1500 V AC for 1 minute (input to system, pressure-clamp connection)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmitter Power Supply\u003c\/td\u003e\n\u003ctd\u003e19.0 V or higher at 20 mA; 25.5 V or lower 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\u003e2-wire or 4-wire, selectable per channel\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\u003eMaximum Current Consumption\u003c\/td\u003e\n\u003ctd\u003e230 mA (5 V DC); 540 mA (24 V DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Configuration\u003c\/td\u003e\n\u003ctd\u003eDual pressure clamp terminal block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Block Model\u003c\/td\u003e\n\u003ctd\u003eATA4D-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironmental Option\u003c\/td\u003e\n\u003ctd\u003eISA Standard G3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature Option\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\u003e0.3 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 AAI143-H53\/A4D00 support HART communication?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The -H suffix identifies the HART communication configuration. It supports digital communication with compatible HART field instruments while acquiring their 4-20 mA analog signals.\u003c\/p\u003e\n\u003cp\u003eQ: What is the function of the A4D00 option?\u003c\/p\u003e\n\u003cp\u003eA: The \/A4D00 option specifies a dual pressure clamp terminal block, identified as ATA4D-00. It defines the field wiring termination configuration rather than the module's input channel count or redundancy status.\u003c\/p\u003e\n\u003cp\u003eQ: Can this module be used directly in an intrinsically safe application?\u003c\/p\u003e\n\u003cp\u003eA: The H53 configuration specifies no explosion protection. Yokogawa's AAI143 specifications also state that a Zener barrier cannot be connected directly to this module. An appropriate isolation barrier is required when using it in an intrinsically safe application.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":68898278146290,"sku":"AAI143-H53\/A4D00","price":235.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0730\/5589\/5794\/files\/AAI143-H53_A4D00.jpg?v=1793954344","url":"https:\/\/www.petrospare.com\/products\/yokogawa-aai143-h53-a4d00-analog-input-module","provider":"Petro Spare Industrial Limited","version":"1.0","type":"link"}