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  2. Battery nomenclature - Wikipedia

    en.wikipedia.org/wiki/Battery_nomenclature

    A zinc-carbon lantern battery, consisting of 4 round "size 25" cells in series. Terminated with spring terminals. 4LR25-2: 4: L: R: 25: 2: An alkaline lantern battery, consisting of 2 parallel strings of 4 round "size 25" cells in series 6F22: 6: F: 22: A zinc-carbon rectangular battery, consisting of 6 flat "size 22" cells. Equivalent to a PP3 ...

  3. ecobee - Wikipedia

    en.wikipedia.org/wiki/Ecobee

    The thermostat or camera acts as a smart home hub for their other devices. The light switches do not require a thermostat or camera but do not provide hub functionality. ecobee provides a set of subscription services.

  4. Thermostat - Wikipedia

    en.wikipedia.org/wiki/Thermostat

    A digital thermostat Honeywell's "The Round" model T87 thermostat, one of which is in the collection of the Smithsonian. A touch screen thermostat An electronic thermostat in a retail store A thermostat is a regulating device component which senses the temperature of a physical system and performs actions so that the system's temperature is ...

  5. Answer to reset - Wikipedia

    en.wikipedia.org/wiki/Answer_to_reset

    The initial character TS encodes the convention used for encoding of the ATR, and further communications until the next reset. In direct [resp. inverse] convention, bits with logic value '1' are transferred as a High voltage (H) [resp. a Low voltage (L)]; bits with logic value '0' are transferred as L [resp. H]; and least-significant bit of each data byte is first (resp. last) in the physical ...

  6. Thermal expansion valve - Wikipedia

    en.wikipedia.org/wiki/Thermal_expansion_valve

    A thermal expansion valve is a key element to a heat pump; this is the cycle that makes air conditioning, or air cooling, possible.A basic refrigeration cycle consists of four major elements: a compressor, a condenser, a metering device and an evaporator.

  7. Wax thermostatic element - Wikipedia

    en.wikipedia.org/wiki/Wax_thermostatic_element

    This regulation is now carried out by an internal thermostat. Conveniently, both the sensing element of the thermostat and its control valve may be placed at the same location, allowing the use of a simple self-contained non-powered thermostat as the primary device for the precise control of engine temperature. [2]

  8. Control loop - Wikipedia

    en.wikipedia.org/wiki/Control_loop

    A control loop is the fundamental building block of control systems in general and industrial control systems in particular. It consists of the process sensor, the controller function, and the final control element (FCE) which controls the process necessary to automatically adjust the value of a measured process variable (PV) to equal the value of a desired set-point (SP).

  9. Berendsen thermostat - Wikipedia

    en.wikipedia.org/wiki/Berendsen_thermostat

    However, the Berendsen thermostat can result in the flying ice cube effect, an artifact which can be eliminated by using the more rigorous Bussi–Donadio–Parrinello [3] thermostat; for this reason, it has been recommended that usage of the Berendsen thermostat be discontinued in almost all cases except for replication of prior studies. [4]