| YOKOGAWA · SAI143-H03 | PRODUCT | SYSTEM | AMIKON | CONTACT | FAQ / MODELS |
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PRODUCT ESSENCE
SAI143-H03
A high-density analog input module combining isolated 4–20 mA acquisition with HART communication capability.
PRIMARY ROLE
Process current signal input
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SIGNAL ARCHITECTURE
Field Device → SAI143-H03 → Control Layer
The module accepts 4–20 mA current signals from field transmitters. Isolation separates the field input side from the system side, while the HART function allows compatible field-device communication.
Signal input
4–20 mA / permissible 0–25 mA
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CONFIGURATION
Flexible Field Wiring
Each channel can be individually configured for 2-wire or 4-wire connection. In the 2-wire configuration, the transmitter power supply function is available.
2-WIRE 4-WIRE
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CHANNEL COUNT
16 channels
Isolated analog inputs
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RATED INPUT
4–20 mA
Current signal
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PERMISSIBLE INPUT
0–25 mA
Permissible signal range
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UPDATE FREQUENCY
40 ms
Data update
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H-VERSION ACCURACY
±16 μA
For 0.05–23 mA input
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HART VERSION
HART 5.7
FSK communication
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TRANSMISSION SPEED
1200 ±2 bps
HART communication
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WIRE SETTING
2-wire / 4-wire
Individual channel setting
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TRANSMITTER SUPPLY
16.15 V min.
At 20 mA
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MAX. SUPPLY
26.4 V max.
At 0 mA
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OUTPUT LIMIT
25 mA
Transmitter supply function
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ISOLATION WITHSTAND
1.5 kV AC
Input signal to system, 1 minute
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5 V CONSUMPTION
320 mA max.
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24 V CONSUMPTION
550 mA max.
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MODULE WEIGHT
Approx. 0.34 kg
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ADAPTER WEIGHT
Approx. 0.39 kg
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HART COMMUNICATION
Analog signal + digital device communication
The SAI143-H03 supports HART communication for compatible field devices. One HART device can be connected to each channel. The module contains one HART modem and communicates with one HART device at a time.
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CONNECTION OPTIONS
Field-side connection
Pressure Clamp Terminal
Supported terminal connection arrangement.
MIL Cable
Supported cable-based connection arrangement.
Dedicated Signal Cable
Available with the corresponding interface arrangement.
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SAI143
Base Current Input Family
16-channel isolated analog input architecture for 4–20 mA signals.
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SAI143-H
HART Variant
Adds HART communication capability while retaining the 16-channel current-input architecture.
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SAI143-H03
Target Configuration
The H03 configuration combines the HART function with the G3 / -20 to 70 °C suffix characteristic.
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SAI533-H
HART Analog Output Family
A complementary HART analog-output architecture, with 8 isolated 4–20 mA output channels rather than the SAI143 16-channel input structure.
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AMIKON LIMITED
At AMIKON, our mission is to promote a more sustainable and efficient global industrial supply chain. With inventory covering more than one million hard-to-find industrial parts, we help system integrators and suppliers reduce unexpected shortages and extended lead times.
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DIRECT PROCUREMENT SUPPORT
Need SAI143-H03 for an urgent project?
Send the part number, quantity, destination, required date and machine/system details. Our team can help verify the intended configuration and arrange the next procurement step.
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CONTACT AMIKON
SAI143-H03 Inquiry Desk
Email: sales@amikon.cn WhatsApp: +86 18020776792
Sales Manager: Miya Zheng
Delivery: E-packing / FedEx / EMS / TNT / DHL / UPS |
| INQUIRY FIELDS | Part Number | Quantity | Destination | Required Date | Machine / System |
| Please contact us within 7 days after receiving the item if there is any issue. | The item should remain in its original condition and the specific reason for return should be provided. | After the returned item is received, a return or replacement can be arranged. Related shipping costs are the buyer's responsibility. |
| 01 |
Can SAI143-H03 be considered when a replacement project requires both 4–20 mA input and HART communication?
Yes. SAI143-H03 belongs to the HART-enabled SAI143 current-input family. It provides 16 isolated analog input channels and supports HART communication for compatible field devices. One HART device can be connected to each channel, while one HART modem communicates with one HART device at a time.
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| 02 |
What wiring detail should be checked before ordering a replacement for SAI143-H03?
Confirm whether the connected transmitter loop uses 2-wire or 4-wire wiring and verify the intended connection arrangement. SAI143 channels can be individually set for 2-wire or 4-wire operation, with pressure clamp terminal, MIL cable and dedicated signal cable arrangements available.
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| 03 |
Does SAI143-H03 provide transmitter power for a two-wire loop?
Yes. The transmitter power supply function is available in the 2-wire configuration. The specified supply is at least 16.15 V at 20 mA, with a maximum of 26.4 V at 0 mA and a 25 mA output current limit.
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| 04 |
Can SAI143-H03 participate in a dual-redundant input configuration?
The SAI143 family supports dual-redundant configuration. For replacement planning, the additional module should have matching specifications, and the complete terminal and system configuration should be verified before installation.
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| 05 |
What should be checked if SAI143-H03 is being considered for an intrinsically safe loop?
A Zener barrier cannot be connected directly to this module. For an intrinsically safe instrumented system, an isolation barrier should be used. The complete loop arrangement and applicable protection configuration should therefore be checked before installation.
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