Product Introduction

 Room Sensor QFA31...
Relative humidity (high precision) and temperature measurement
• Working Voltage AC 24V / DC 13.5...35V
Signal output for relative humidity and temperature: DC 0...10 V / 4...20 mA
• High precision throughout the entire measurement range
Capacitive humidity measurement
• With testing functionality
• Measurement Range: -40…+70 °C / 0…100% Relative Humidity
LCD Monitor -25...+70 °C / 0...100% Relative Humidity
Usage
QFA31... is used in ventilation and air conditioning applications where high precision in relative humidity measurement and rapid response time are required.
The measurement range covers the entire 0...100% spectrum.
For instance:
• Facilities for storage and production in the paper industry, textile industry, food industry, chemical and electronic industries
• Laboratory
• Indoor swimming pool
• Computer and Digital Processing Center
Greenhouse
• The AQF3100 accessory can be used outdoors when paired
Enclosure
Name Reference Model
Outdoor Installation Kit (includes sunshade to prevent direct sunlight) AQF3100
Filter Cap (for replacement) AQF3101
Measuring Rod (Replaceable) AQF3150
Calibration Attachment (for system calibration) AQF3153
Installation Precautions
Indoor installationQFA31... Not required AQF3100
Installation Location
The interior wall (not the exterior wall!) of the air-conditioned room should not be installed in the wall structure in an embedded manner, nor should it be placed behind curtains, near heat sources, or on the wall adjacent to the flue.
Sensors must be shielded from direct sunlight.
Install the sensor in an occupied area, above ground level by 1.5 meters and at least 50 cm away from the adjacent wall.