YAMATAKE-HONEYWELL KUX113-XW11AX-7 I/P CONVERTER AIR REGULATOR S-CG1B3-41-021 #25

The YAMATAKE-HONEYWELL KUX113-XW11AX-7 is a field-mounted current-to-pneumatic (I/P) converter designed for industrial automation and process control systems. Manufactured in Japan by Yamatake-Honeywell (now Azbil Corporation), this high-precision instrument converts a standard 4-20mA DC electrical signal into a proportional pneumatic pressure output, enabling reliable control of pneumatic valves, actuators, and positioners.

The model S-CG1B3-41-021 designation refers to the complete assembly configuration, which includes an integrated air regulator (model KZ03) for stable supply pressure regulation and consistent output performance.

Key Technical Specifications

Parameter	Specification
Input Signal	4~20mA DC
Output Signal	0.2~1.0 kgf/cm² (20~100 kPa)
Supply Pressure	1.4 kgf/cm² (140 kPa ±10%)
Air Regulator Model	KZ03
Maximum Input Pressure	9.9 kgf/cm² (140 PSI / 970 kPa / 9.7 Bar)
Regulated Output	1.4 kgf/cm² (20 PSI / 140 kPa)
Accuracy	±0.5% Full Scale
Hysteresis	≤0.5% Full Scale
Air Consumption	4 L/min (N) at 50% output balance
Operating Temperature	-30 to +80°C
Operating Humidity	10~90% RH
Weight	Approximately 4.1 kg
Origin	Made in Japan

Product Features

The KUX113 series I/P converter is a two-wire field-type instrument, eliminating the need for separate power wiring at the installation site. The unit is designed for mounting on a 2-inch (2B) pipe stanchion, making it compatible with standard field instrument mounting brackets used across the DSTJ3000 series and other field devices.

The instrument's casing is constructed from aluminum alloy with an acrylic baked finish in dark beige. The KUX113-XW11AX-7 variant features a water splash-proof and dust-proof construction conforming to JIS F8001 Class 3 standards. The internal mechanism is continuously purged by air from the nozzle, helping maintain reliable operation in demanding industrial environments.

The integrated KZ03 air regulator provides precise pressure regulation, ensuring stable supply pressure to the converter mechanism. This combination allows for consistent output regardless of fluctuations in the main air supply line.

Typical Applications

The KUX113-XW11AX-7 is suitable for a wide range of industrial process control applications requiring accurate electro-pneumatic signal conversion:

• Chemical and Petrochemical: Control of pneumatic control valves and dampers in process loops

• Power Generation: Auxiliary control systems for boiler combustion and steam pressure regulation

• Food and Beverage: Pressure monitoring and regulation in filling and packaging equipment

• Water Treatment: Valve positioning and flow control in filtration and distribution systems

• General Industrial Automation: Interface between electronic control systems and pneumatic actuators

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