You searched for: “humidistat
humidistat
1. An instrument designed to indicate or to control the relative humidity of the air.
2. An appliance used for maintaining the vapor pressure in the air of a room or other enclosed space within set limits.
hygrostat, humidistat
1. An instrument that measures, or controls, the relative humidity of the air.
2. A device used for regulating the relative humidity of an enclosed space.

A hygrostat contains a sensor that detects a preset level of humidity and is connected to a heater that is turned off, and on, as needed in order to keep the humidity at the preset level.

Hygrostats are used in humidifiers, and dehumidifiers, and are placed in the ductwork of laboratories and other facilities where climate control is necessary.

This entry is located in the following unit: hygro-, hygr- + (page 4)
Word Entries containing the term: “humidistat
electronic humidistat
1. A instrument, used to regulate the degree of humidity, which is composed of two sets of alternate metal conductors that transmit any variations in humidity to a relay amplifier.
2. A humidistat (instrument for measuring humidity) in which a change in the relative humidity causes a change in the electrical resistance between two sets of alternate metal conductors mounted on a small flat plate with plastic coating, and this change in resistance is measured by a relay amplifier.
This entry is located in the following units: electro-, electr-, electri- (page 64) -tron, -tronic, -tronics + (page 9)