YOKOGAWA SAI143-S03 S1 Analog Input Module

Standard Specifications

General Information

• Model: SAI143
• Type: Analog Input Module (4 to 20 mA, 16 channels, module isolation)
• Redundancy: Can be configured as dual redundant.

Input Specifications

• Number of Channels: 16 channels, with module isolation.
• Rated Input Range: 4 to 20 mA.
• Permissible Input Range: 0 to 25 mA.
• Input Impedance:
  • During Power-ON: $250\Omega +\text{Current Value}$.
  • During Power-OFF: $500k\Omega$ minimum.
• Voltage Drop in Input Protection Circuit: Maximum 0.45 V (impedance varies between 272.5 $\Omega$ and 362.5 $\Omega$).

Accuracy

• Rated Accuracy:
  • SAI143-S: ±16 µA (Input range: 1 to 23 mA).
  • SAI143-H: ±16 µA (Input range: 0.05 to 23 mA).
  • Temperature Drift: ±16 µA/10°C.

Transmitter Power Supply

• Voltage Range:
  • Minimum: 16.15 V (at 20 mA).
  • Maximum: 26.4 V (at 0 mA).
  • Current Limit: 25 mA.
• 2/4-Wire Setting: Individual channel configuration.
• ON/OFF Functionality: Available for all 16 channels in 2-wire setting (e.g., resetting Fire and Gas device alarms).

Data and Electrical Specifications

• Data Update Frequency: 40 ms.
• Withstand Voltage: 1.5 kV AC (input signal to system) for 1 minute.
• Power Consumption:
  • 5 V system: 320 mA.
  • 24 V system: 550 mA.
• Weight:
  • 0.34 kg (pressure clamp terminal block or MIL cable).
  • 0.39 kg (with signal cable interface adapter).

Environmental Conditions

• Temperature:
  • Operating: -20 to +70°C.
  • Storage: -40 to +85°C.
• Humidity: 5% to 95% (non-condensing).
• Contamination Resistance: ISA Standard G3 compliance.

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Model and Suffix Codes

Model

• SAI143: Analog Input Module (4 to 20 mA, 16 channels, module isolation).

Suffix Codes

 

Suffix	Description
-S	Standard type.
3	With ISA Standard G3 and temperature (-20 to 70°C).
STYLE	S1

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