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Electronic Humidity Alarms for Compressed Air Systems
In manufacturing plants, having reliable Electronic Humidity Alarms is essential to ensure the quality and efficiency of pneumatic tools and machinery.
The Electronic Humidity Alarm for Compressed Air Systems alarms when wet air is detected. By closing a contactor, a red alarm light is activated, alerting to wet compressed air. This crucial High Humidity Alarm can be monitored remotely in a control room. Or, it can be wired to an alarm, horn, or buzzer. This unit runs on 115/1/60 and is in a NEMA 4 enclosure rated for 150 psig systems.
High humidity alarms are relied upon to detect high humidity levels, which can affect the performance of our equipment. These alarms help maintain optimal conditions for a variety of important processes.
The Electronic Humidity Alarm is installed downstream of a regenerative Desiccant Dryer. The High Humidity Alarm is a resistance type humidity sensor with housing, bleed orifice, electronic humidistat, dry contacts (remote alarm) and red alarm light. There is a continuous sample of the measured air passes over the sensor and is exhausted to atmosphere through the bleed orifice. This design will give a pressure dewpoint. While the compressed air is dry the humidistat powers the remote alarm contact holding it open.
Low humidity alarms and electronic dew point alarms are also used to monitor low humidity levels and dew points, ensuring our compressed air systems remain dry and efficient. These alarms, along with our humidity monitors and humidity sensors, provide comprehensive moisture control.
The two RH detection levels offered are P/N 20506 detecting a 10% RH level (equal to a +18F PDP @ 80F sensor temperature) or a P/N 20506-R3 detecting a 3% RH level (equal to a -7F PDP @ 80F sensor temperature). The lower resistance level of wet air causes the humidistat board to de-energize the alarm contact closing it. This lights the red alarm light and remote alarm relay. Once the air system malfunction is corrected the dryer air will return the sensor to dry air and the alarms will stop. There are no adjustments needed before or after installation.
These moisture alarms are crucial for preventing damage to our sensitive equipment. They alert us immediately to any issues, allowing us to address them promptly and maintain a high level of operational efficiency.
Typical applications include but not limited to Desiccant air dryers, environmental chambers, dry air storage tanks, dry sprinkler systems, dry glove boxes or any critical dry compressed air application.
Please call or email our sales department with your application.