سنسور و مبدل سنسور رطوبت

Product Attributes

Introduction

ACI's outdoor air relative humidity series with RTD utilizes a thermosetting polymer capacitive sensing element with a factory-installed hygroscopic filter, providing proportional analog current or voltage output signals. The hygroscopic filter enhances resistance to moisture, dust, and other chemical contaminants, improving long-term reliability. This outdoor air relative humidity transmitter features built-in DIP switches for field selection of output signal and supply voltage to meet application requirements. Each unit also includes 0%, 50%, and 100% test options to verify proper transmitter operation and correct wiring. Field calibration can be performed without replacing the sensing element using increment and decrement calibration DIP switches. These improvements enhance flexibility and long-term reliability. The outdoor air configuration features a weatherproof Euro-style enclosure with a sealed cover and a conformal-coated PCB for enhanced moisture and chemical corrosion resistance. A three-point NIST calibration certificate is available.

Features

• Thermoset polymer capacitive sensing element
• Factory-installed hygroscopic filter
• Built-in DIP switch for field-selectable output signal and supply voltage
• 0%, 50%, and 100% test options
• Field calibration via DIP switch
• Weatherproof Euro-style housing with conformal-coated PCB
• Optional three-point NIST calibration certificate

Applications

Monitoring outdoor air humidity, economizer control, psychrometric calculations such as enthalpy and dew point, purge applications