Yokogawa SAI143-H53/STA4D-00 16-Channel Analog Input Module

Overview

The SAI143-H53/STA4D-00 is a 16-channel analog input module designed for Yokogawa’s ProSafe-RS safety instrumented systems. It supports 4 to 20 mA current signals and includes HART communication for smart devices. Each channel is isolated and has a built-in transmitter power supply. The module suits dual-redundant configurations, ensuring high reliability in safety-critical industrial environments. It operates over a wide temperature range and provides accurate, fast data updates.

Technical Specifications

Model Number: SAI143-H53/STA4D-00
Type: Analog Input Module (Current input)
Input Channels: 16 isolated channels
Rated Input Range: 4 to 20 mA
Permissible Input Range: 0 to 25 mA
Input Impedance:
- Power-On: 250 Ω + current value
- Power-Off: ≥500 kΩ
Accuracy: ±16 µA (0.05 to 23 mA)
Temperature Drift: ±16 µA per 10°C
Voltage Drop: Max 0.45 V
Data Update Frequency: 40 ms
Transmitter Power Supply:
- 16.15 V (min at 20 mA)
- 26.4 V (max at 0 mA)
- Limit: 25 mA
Power Consumption:
- 5 V system: 320 mA
- 24 V system: 550 mA
Withstand Voltage: 1.5 kV AC (1 min) between input and system
Wiring Configuration: Configurable 2-wire or 4-wire per channel
External Connection: Dual-redundant pressure clamp terminal block (STA4D-00)
Weight: 0.39 kg
HART Communication: Supported (HART 5.7 protocol)
Operating Temperature: –20°C to +70°C
Explosion Protection: None (suffix code “5” indicates no protection)