SAI143-S53/A4S10 Yokogawa Analog Input Module

SAI143-S53/A4S10 Yokogawa CENTUM CS/VP Analog Input Modules

SAI143-S53/A4S10 Yokogawa CENTUM CS/VP Analog Input Modules

Availability: 20 left in stock

Yokogawa SAI143-S53/A4S10 Analog Input Module Configured for 16-channel isolated analog data acquisition in CENTUM CS/VP distributed control systems, the Yokogawa...

SKU: SAI143-S53/A4S10

Manufacturer: Yokogawa
Product No.: SAI143-S53/A4S10
Product Type: Analog Input Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 300g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa SAI143-S53/A4S10 Analog Input Module

Configured for 16-channel isolated analog data acquisition in CENTUM CS/VP distributed control systems, the Yokogawa SAI143-S53/A4S10 (SAI143 Analog Input Module) provides direct physical signal digitizing from process transmitters. It converts 4-20 mA current loops and 1-5 VDC voltage signals into 16-bit digital values for processing by the central system. Each channel allows independent 2-wire or 4-wire circuit configuration via physical setting pins, enabling field-side signal integration without external impedance matching modules.

Suffix Breakdown & Model Matrix

Suffix Code	Option Code	Description / Structural Specification
SAI143	-	Base Analog Input Module (16 Channels, Isolated)
-S	-	Standard type module
5	-	Standard switch setting / Standard function
3	-	Style code S3 (Extended measurement range from 0.05 to 23 mA)
-	/A4S10	Dual-redundant signal cable interface option / Pressure clamp terminal block compatibility

Hardware Specifications

Parameter	Specification
Model	SAI143-S53/A4S10
Brand	Yokogawa
Origin	Japan
Input Channels	16 channels, individual isolation
Input Signal Type	4-20 mA DC, 1-5 V DC (per channel selectable)
A/D Conversion Resolution	16-bit
Rated Accuracy	+/-16 uA (0.05 to 23 mA for Style S3 or later); +/-0.1% of full scale
Temperature Drift	+/-16 uA / 10 deg C
Data Update Frequency	40 ms
Input Impedance	250 Ohm (current input mode), 100 kOhm (voltage input mode)
Power Consumption	6 to 8 W
Isolation	Channel-to-channel and channel-to-system isolation
Operating Temp	-25 to 70 deg C
Dimensions	120 mm x 25 mm x 130 mm
Weight	0.3 kg

Channel Isolation & CJC Architecture

The SAI143-S53/A4S10 incorporates individual channel-to-channel galvanic isolation rated to prevent ground loops and common-mode voltage spikes from propagating between field instrumentation and the system backplane bus. The board utilizes dedicated optocouplers alongside high-impedance input stages for each channel, achieving channel isolation ratings that shield system logic from field-side ground shifts. For temperature monitoring integration using transmitters, the 4-20 mA HART loop protocol passes raw measurement data while maintaining internal cold junction compensation (CJC) accuracy tolerances across the active backplane interface, ensuring precise A/D conversion without thermal gradient errors across terminal connection points.

Frequently Asked Questions

Q: How are 2-wire and 4-wire current loops configured on the module?

A: Each individual input channel contains physical hardware setting pins on the module board. The jumper pins must be set to the designated 2-wire or 4-wire position per channel prior to mounting the terminal block and energizing the loop.

Q: What impact does Style S3 have on the low-end current input range?

A: Style S3 hardware extends the linear measurement range down to 0.05 mA while maintaining a rated accuracy specification of +/-16 uA between 0.05 mA and 23 mA.

Q: Can the SAI143 module be replaced while the backplane is powered?

A: Hot-swapping is supported when installed in redundant system slots, provided the module retaining screws are fully unfastened before extraction to allow proper bus contact disengagement sequence.

Field Installation Guidelines

Ensure the backplane rack power is stable before seating the module into the base chassis slot. Verify that all 2-wire and 4-wire physical setting pins match the target channel sensor power topologies prior to slot insertion. Secure the terminal block interface using the designated module fastening screws to ensure uniform pin engagement across the backplane connector. Shield wires from 4-20 mA signal cables must be tied to the system ground bus bar at a single termination point to prevent shield ground currents. Maintain a minimum bending radius on field wiring runs and route signal cables separately from high-voltage AC power conductors within the terminal cabinet.

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