Humidistat
Electronic device which responds to relative humidity
A humidistat or hygrostat is an electronic device analogous to a thermostat but which responds to relative humidity, not temperature. A typical humidistat is usually included with portable humidifiers or dehumidifiers. It can also be included with combined air cleaner or humidifier units to control a home's humidity level or any other indoor space.[1]
Usage
Humidistats are used in a number of devices including dehumidifiers, humidifiers, and microwave ovens. In humidifiers and dehumidifiers, the humidistat is used where constant relative humidity conditions need to be maintained such as a refrigerator, greenhouse, or climate-controlled warehouse.[2] When adjusting the controls in these applications the humidistat would be what is being set. In microwaves they are used in conjunction with smart cooking one-button features such as those for microwave popcorn. Humidistats employ hygrometers but are not the same. A humidistat has the functionality of a switch and is not just a measuring instrument like a hygrometer is.
For heating, ventilation, and air conditioning (HVAC) of buildings, humidistats or humidity sensors are used to sense the air relative humidity in the controlled space and turn on and off the HVAC equipment.[3]
References
- ^ Bella,"Humidistat Guide: What It Is And Why You Need One". thehomeyspace.com. 28 May 2021. Retrieved 2022-01-05.
- ^ "Your home environment might be harming you. Here's a few ways to fix it! - SwitchBot Blog". 2023-02-16. Retrieved 2024-05-20.
- ^ Engineering Manual of Automation Control, Honeywell, 1997, https://customer.honeywell.com/resources/techlit/techlitdocuments/77-0000s/77-e1100.pdf accessed 27 October 2014, Chapter "Electronic Control Fundamentals", Section "Relative Humidity Sensor", pg 125
External links
- Types Of Humidifiers Archived 2019-01-08 at the Wayback Machine
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Switch types
- Analogue switch
- Banyan switch
- Battery isolator
- Cam switch
- Centrifugal switch
- Company switch
- Contact protection
- Crossbar switch
- Crossover switch
- Cryotron
- DIP switch
- Dry contact
- Electric switchboard
- Float switch
- Half-moon switch
- Humidistat
- Infinite switch
- Inertial switch
- Kill switch
- Key switch
- Knife switch
- Limit switch
- Latching switch
- Light switch
- Lightning switch
- Magnetic proximity fuze
- Magnetic starter
- Magnetic switch
- Mercury switch
- Miniature snap-action switch
- Motion-triggered contact insufficiency
- Optical switch
- Photoswitch
- Piezo switch
- Placebo button
- Pull switch
- Push switch
- Push-button
- Railroad switch
- Reed switch
- Rotary switch
- Sail switch
- Sea switch
- Sense switch
- Silicone rubber keypad
- Softswitch
- Spark gap
- Staircase timer
- Stepping switch
- Strowger switch
- Thermostat
- Time switch
- Touch switch
- Transfer switch
- Vacuum switch
- Vandal-resistant switch
- Wireless light switch
- Zero speed switch
