Siemens Building Technology 186-0013 Hygrostat

As a seasoned technician, you know that maintaining precise humidity levels in critical environments like hospitals, labs, and data centers requires a pneumatic room hygrostat that doesn't drift. The Siemens 186-0013 is a direct acting (DA) instrument designed for high-sensitivity relative humidity control within a standard range of 20% to 90% RH. This unit is the official replacement for 2230-018, ensuring full compatibility with existing field piping and terminal connectors. Built with a hygroscopic membrane sensing element and bimetal temperature compensation, the 186-0013 minimizes thermal effects on your control pressure, typically operating within a 15 to 25 psig supply range. The desert beige cover and wall plate are included, providing a professional finish for wall-mounted installations. Whether you are performing a replacement of 2230-018 or a new system integration, the adjustable sensitivity—ranging from 1/4 to 4 psi per 1% RH—allows for the fine-tuning required for stable pneumatic calibration.

• Direct Cross-Reference: Engineered as the specific 186-0013 replacement for 2230-018, allowing for rapid swaps without re-piping.
• Environmental Stability: Built-in bimetal compensation prevents "floating" setpoints caused by fluctuating room temperatures.
• Fine-Tuned Sensitivity: Adjustable nozzle-flapper feedback mechanism ensures the Siemens 186-0013 responds accurately to slight humidity shifts.
• Complete Kit: Ships with the standard pneumatic hygrostat cover and wall plate (Kit No. 180-443) for immediate mounting.

Is the Siemens 186-0013 compatible with the 2230-018?
Yes, the 186-0013 is the manufacturer-designated direct replacement for the legacy 2230-018 model, maintaining the same form factor and direct acting operation.

What is the control range for this pneumatic hygrostat?
The unit manages relative humidity between 20% and 90% RH, making it suitable for standard comfort cooling and critical process control.

What supply pressure is required for the 186-0013?
This pneumatic room hygrostat is designed for a normal supply pressure of 15 to 25 psig, with a maximum limit of 30 psig.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.