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What is a heat detector?

A heat detector is a device designed to sense a significant increase in temperature, typically above a certain threshold. It is commonly used in fire alarm systems to detect fires in areas where smoke detectors may not be suitable, such as kitchens or areas with excessive dust. When the temperature rise is detected, the heat detector triggers an alarm to alert occupants of potential fire hazards.


Can a smoke detector sound from heat only?

No, smoke detectors are triggered by detecting smoke particles in the air, not just heat. Heat detectors, on the other hand, are designed to only activate when a certain temperature threshold is reached.


How does a curtain passive infrared detector work?

Infrared detectors work on the principle of heat.The detector aims multiple beams of infrared waves or "curtains" into the detection path.The detector is looking for the difference in temperature between each "curtain". If there is no body heat present, all "curtains" will have the same temperature. If the difference exceeds a predetermined threshhold, a circuit is tripped.


What is the ohmic value of two wire rtd?

The ohmic value of a two-wire RTD (Resistance Temperature Detector) typically ranges from 100 ohms to 1000 ohms at 0°C. This value increases with temperature due to the positive temperature coefficient of the RTD material.


What is the effect of detector temperature on retention time?

Compounds injected onto a column interact with the column material. Some compounds "stick" to the column more than others. These compounds then have a long retention time. Heating increases the kinetic energy of the compounds on the column. This increased energy allows the molecules to wiggle free from the column more easily. So heating reduces the "stickiness" of the molecules. Since molecules will "stick" less, they will move more quickly through the column, and their retention times will decrease.

Related Questions

How does an RTD measure temperature?

An RTD, or resistance temperature detector is based in the principal that the resistance of a conductor changes as its temperature changes. The RTD consists of a long length of fine coiled wire made from some pure material such as nickel, platinum or copper. The coil is in the form of a probe and may be encased in a protective sheath. The wire material has a known response - in how its resistance changes with temerature - and this known change is used to determine temperature.


What detector can detect temperature?

thermometer


If the resistance temperature detector fails. What increases?

resistance


What does pll consists of?

PLL stands Phase Locked Loop . It consists of phase detector,low pass filter,voltage controlled oscillator,error amplifier


Does the Rocky Mountain RMR-C430-6 Radar Detector work at any speed?

Yes, the Rocky Mountain RMR-C430-6 Radar Detector can function at any speed as long as it is properly calibrated and operational. However, the effectiveness of radar detectors at high speeds can be influenced by factors such as the strength of the radar signal and the detector's sensitivity.


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How can radiation detect a fire?

Radiation detectors can sense changes in temperature caused by a fire. When objects burn, they emit heat that can be picked up by sensors in the radiation detector. This increase in temperature triggers the alarm on the detector, alerting users to the presence of a fire.


What is a heat detector?

A heat detector is a device designed to sense a significant increase in temperature, typically above a certain threshold. It is commonly used in fire alarm systems to detect fires in areas where smoke detectors may not be suitable, such as kitchens or areas with excessive dust. When the temperature rise is detected, the heat detector triggers an alarm to alert occupants of potential fire hazards.


Explain why americium-241 would be an ideal isotope to use in a smoke detector?

Alpha particles from americium ionized the air. An air with smoke has a different ionization, ionization currents which are also different are measured, compared and the detector (which is before calibrated) is ready !


What are Two type of heat detectors are?

They are: -Rate of Rise -Fixed Temperature Rate of rise detectors can be adjusted to different temperature settings to which detect heat. Once the temperature in that area reaches your chosen point, it will activate the heat detector. Fixed Temperature is when you buy a heat detector, it only has one fixed detection point on it. So you cannot adjust this.


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State 5 type of temperature measuring devices other than thermocouple with its application?

RTD - Resistence temperature detector Thermistor Pyrometer Thermometer