Yokogawa AAI135-S00 Current Input Module and Current I/O Module Isolated Channels

Items		Specifications
Model		AAI135 (*1)
Number of I/O channels		8-channel input, isolated channels
I/O signal		4 to 20 mA
Allowable input current		25 mA
Withstanding voltage		Between input and system: 500 V AC, for 1 minute Between input channels: 500 V AC, for 1 minute (*2)
Input resistance	Power ON	290 Ω (at 20 mA) to 450 Ω (at 4 mA) (*3)
	Power OFF	500 kΩ or larger
Allowable load resistance
Circuit-open detection
Accuracy		±16 µA
Data update period		10 ms
Transmitter power supply		15.0 V or higher (at 20 mA) 29.3 V or less (at 0 mA) (*5)
Temperature drift		±16 µA/10 °C
Maximum current consumption		360 mA (5 V DC), 450 mA (24 V DC)
Weight		0.3 kg
External connection		Pressure clamp terminal, MIL connector cable, dedicated cable (KS1)
HART communication (*6)		Available

*1: A Zener barrier is not allowed to be connected with this module. Use an isolation barrier when the module is used in

intrinsically safe applications.

*2: When the ML connector cable is used, the withstanding voltage depends on the electrical specifications of the cable.

*3: The module input resistance viewed from the terminals depends on the current strength as calculated as below:

250 Ω + voltage drop in the input protection circuit/current value

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*5: This voltage is generated between the connecting terminals for 2-wire transmitters for this module. When calculating the

minimum operating voltage for transmitters, consider to allow margins for voltage drop in external wiring.

*6: When this module is installed to a ER bus node unit with HART function, the EB401 firmware must be rev. 2 or later.

Similar model codes for your reference :

AAI135-S00, AAI135-S50, AAI141-H00, AAI141-H53, AAI141-S00, AAI141-S03, AAI141-S50, AAI143-H00, AAI143-H50, AAI143-HE3, AAI143-S50, AAI143-S51, AAI543-H00, AAI543-H03, AAI543-H50, AAI543-H53, AAI543-H60, AAI543-S00, AAI543-S50, AAI841, AAI841-H50, AAI841-S00

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