YOKOGAWA SAI143-H63

Description

1. Detailed parameter table

YOKOGAWA SAI143-H63

2. Product introduction

The YOKOGAWA SAI143-H63 is an advanced industrial analog input module engineered for high-precision measurement in demanding industrial environments. Building on the capabilities of the SAI143-H33, it offers enhanced performance parameters to meet the needs of applications requiring ultra-accurate data acquisition and faster response times.

With 8 channels supporting both bipolar voltage (±10V DC) and current (±20mA DC) inputs, the SAI143-H63 can connect to a broader range of sensors, including differential pressure transmitters and load cells that generate bipolar signals. Its 18-bit resolution and ±0.02% accuracy ensure detection of even the minutest process variations, which is crucial for critical applications where precision directly impacts safety and efficiency. The module’s superior isolation design and extended operating temperature range (-25°C to 75°C) make it suitable for extreme environments in industries such as aerospace testing, nuclear power, and high-precision manufacturing. As an upgraded solution in YOKOGAWA’s analog input lineup, the SAI143-H63 provides exceptional data quality, enabling control systems (like the CP461-50 PLC) to maintain precise process control in the most challenging conditions.

3. Core advantages and technical highlights

Superior precision with bipolar measurement:

Unlike the unipolar-focused SAI143-H33, the SAI143-H63 supports bipolar inputs, allowing it to measure both positive and negative signal variations. In a wind tunnel test facility, this capability is critical for capturing air pressure fluctuations around aircraft components, where pressure differences can swing from positive to negative. The 18-bit resolution (4 times higher than 16-bit) enables detection of 0.005mA changes in a ±20mA signal, ensuring accurate aerodynamic data that directly influences aircraft design safety.

High-speed sampling for dynamic processes:

With a 500 samples/second per channel rate (5 times faster than the SAI143-H33), the SAI143-H63 excels in capturing rapidly changing signals. In a high-speed packaging line, it can track the fluctuating pressure of a filling nozzle as it moves between containers, ensuring the PLC (CP461-50) receives real-time data to adjust flow rates instantly. This speed prevents overfilling or underfilling, reducing waste and maintaining product consistency in high-throughput operations.

Enhanced isolation and ruggedness:

The SAI143-H63 features 3kV AC channel-to-channel isolation and 6kV AC channel-to-backplane isolation, exceeding the SAI143-H33’s isolation levels. In a nuclear power plant’s coolant monitoring system, this superior isolation protects sensitive control systems from high-voltage transients, ensuring reliable measurement of coolant flow rates even during electrical disturbances. The module’s compliance with IEC 61010-1 adds an extra layer of safety certification, critical for applications with high risk potential.

Extended environmental tolerance:

Operating reliably in -25°C to 75°C environments, the SAI143-H63 outperforms the SAI143-H33 in extreme temperatures. In a deep-sea oil drilling control system, it accurately measures subsea wellhead pressure in freezing waters, while withstanding the high ambient temperatures of the drilling platform’s control room. Its enhanced vibration resistance (20g peak, 10-2000Hz) ensures stable performance on offshore platforms subject to constant mechanical stress.

YOKOGAWA SAI143-H63

4. Typical application scenarios

In a rocket engine test facility, the SAI143-H63 monitors fuel flow rates, combustion chamber pressure, and thrust levels during ignition tests. Its bipolar measurement capability captures the rapid pressure spikes and dips of the combustion process, while the high sampling rate ensures no critical data points are missed. The module’s data is fed to the CP461-50 PLC, which triggers safety shutdowns if parameters exceed safe limits—precision that directly impacts test personnel safety.

In a semiconductor fabrication cleanroom, the SAI143-H63 measures temperature variations, gas flow rates, and vacuum levels in deposition chambers. The 18-bit resolution allows detection of 0.01°C temperature fluctuations that could affect wafer quality, while the fast sampling rate ensures immediate adjustment of heating elements via the S2BN5D-121 DO module. This level of control is essential for maintaining nanoscale manufacturing tolerances.

In a tidal energy generation system, the module monitors the force exerted on turbine blades by alternating currents, capturing both positive and negative load forces (via bipolar strain gauges). Its extended temperature range allows operation in coastal environments with extreme temperature swings, while the high sampling rate tracks the rapid force changes caused by wave action. The data enables the PLC to adjust turbine pitch in real time, maximizing energy capture while preventing structural damage.

5. Related model recommendations

• SAO143-H63: The analog output counterpart to the SAI143-H63, providing bipolar control signals to actuators based on the high-precision input data collected.
• SAI143-H33: The standard-precision variant for applications where the SAI143-H63‘s advanced features are not required, offering a cost-effective alternative.
• CP461-50: The high-performance PLC optimized to process the high-speed data stream from the SAI143-H63, leveraging its processing power to handle 500 samples/second per channel.
• PW702: The high-power supply that pairs with the SAI143-H63in high-voltage industrial environments, providing stable backplane power to maintain measurement accuracy.
• S2BN5D-121 DO: The digital output module that acts on control decisions derived from the SAI143-H63‘s data, executing safety shutdowns and process adjustments.
• F3PU50-0N: The HMI panel that displays real-time bipolar measurements from the SAI143-H63, allowing operators to monitor dynamic processes with high precision.

6. Installation, commissioning and maintenance instructions

Installation preparation

Before installing the SAI143-H63, ensure the mounting rail is secured in a vibration-damped control cabinet with ambient temperature between -25°C and 75°C. Prepare specialized tools including a precision torque screwdriver (0.5-1.5Nm), shielded cable strippers, and a 6½-digit multimeter for calibration.

Verify backplane power (typically 5V DC) has ≤50mV ripple to maintain measurement accuracy. Use double-shielded twisted-pair cables for all connections, with both inner and outer shields grounded at the sensor end for bipolar signal integrity. For current inputs, ensure loop resistance matches sensor specifications (maximum 500Ω for ±20mA), and for voltage inputs, use twisted pairs with 100Ω impedance matching. Label channels with both signal type and polarity to prevent wiring errors with bipolar sensors.

Maintenance suggestions

Perform bi-annual calibration of the SAI143-H63 using a 7-digit precision signal generator to maintain its ±0.02% accuracy—critical for applications like aerospace testing where certification requires traceable measurements. Conduct monthly visual inspections for loose connections or shield damage, which are more impactful on bipolar signals than unipolar ones.

Monitor the module’s advanced diagnostics via the PLC software, including channel-to-channel crosstalk (<-80dB) and noise floor (<10µV RMS). Check for temperature-induced drift during seasonal changes in extreme environments, using the built-in temperature sensor for compensation adjustments. If a channel exhibits drift beyond ±0.01%, recalibrate immediately rather than waiting for the scheduled interval.

Store spare modules in anti-static packaging with humidity control (<60% RH) to prevent calibration drift. Maintain a calibration history log with environmental conditions during each calibration, as temperature variations can affect bipolar measurement accuracy over time.

7. Service and guarantee commitment

YOKOGAWA provides a 5-year warranty for the SAI143-H63, with an optional 2-year extension for critical applications. Each module undergoes enhanced testing including 5000-hour temperature cycling, 3kV isolation testing (10x longer duration than standard), and bipolar signal linearity verification across 1 million test points.

Our technical support team includes metrology specialists with expertise in bipolar signal processing, offering 24/7 support for calibration and troubleshooting. On-site response for critical applications (like nuclear power) is guaranteed within 24 hours, with emergency loaner modules available to minimize downtime.

YOKOGAWA provides NIST-traceable calibration certificates for the SAI143-H63 and offers accredited calibration services that meet ISO 17025 standards. Training programs include specialized courses on bipolar signal handling and high-speed data acquisition, ensuring customers maximize the module’s capabilities in dynamic process environments.