YOKOGAWA ACG10S -E2120 AIP903 COUPLERS 220-240VAC 50 60HZ UN

Description:

The Yokogawa AC1-5-S-D-R Automatic Calibration Unit is used in gas analysis systems for automated calibration of oxygen analyzers. Commonly installed with Yokogawa ZR-series oxygen analyzers in boilers, furnaces, and industrial combustion systems. Maintenance teams and system integrators use this part for automatic calibration, improving measurement accuracy, or replacing manual calibration systems in continuous monitoring applications.

Applications:

The Yokogawa AC1 automatic calibration unit is commonly used in industrial environments where oxygen concentration must be accurately monitored and maintained. It is frequently applied in combustion control systems, power plants, and chemical processing facilities to automatically supply zero and span calibration gases to oxygen analyzers. The unit enables fully automatic or semi-automatic calibration through the analyzer interface, reducing manual intervention and ensuring consistent measurement accuracy.

Technical Specifications:

• Manufacturer: Yokogawa
• Model / Part Number: AC1-5-S-D-R
• Product Type: Automatic Calibration Unit
• Calibration Type: Automatic / semi-automatic gas calibration
• Function: Automatic delivery of zero and span calibration gases via solenoid valves
• System Compatibility: Yokogawa ZR402G analyzer with ZR22G probe
• Power Supply: 24 VDC control (solenoids) and 120 VAC main power (model dependent)
• Operating Pressure: ~20 psi (max ~35 psi)
• Flow Rate: ~0.6 LPM (cal gas), ~0.8 LPM (reference air)
• Flowmeter Range: 0.15–1 LPM
• Gas Connections: 1/4" FNPT fittings
• Tubing: 1/4" copper (standard) or stainless steel option
• Enclosure: NEMA 4 or NEMA 4X (model dependent)
• Control Method: Analyzer-controlled, timed automatic, or manual override
• Channels: Single-point calibration system

Common Replacements:

• Yokogawa AC4 Automatic Calibration Unit
• Yokogawa AC8 Automatic Calibration Unit
• Yokogawa IAC-24 Integral Calibration Unit