please explain smoke detectore & lel detector?what is o/p
Answer Posted / y.kathirvel
the smoke detector is a thing that detects the smoke by intensity variation of that area under control. if any fire occurs there the light intensity on that area decreases. this can be measured my photo metric method.Photometric measurement is based on photodetectors, devices (of several types) that produce an electric signal when exposed to light. Simple applications of this technology include switching luminaires on and off based on ambient light conditions, and light meters, used to measure the total amount of light incident on a point.its o/p will be in mV.
Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
Draw a P& ID showing – orifice flange, plate, dp transmitter, isolation & bypass valves and tubing.
Can I route 110 VDC and 24 VDC in a same Duct for our Interposing relay cabinet? IF yes or NO Please provide me IEEE Std. for the same. Please i required it on Urgent basis, i need to design IRP Cabinets and we have MCC 110VDC and Our Coil side is 24VDC, Please help as soon as possible.
How RAL(Rotary air lock)works in cement industry?
WHY THE DEGREE OF VALVE PLUG AND VALVE SEAT IS SLIGTLY DIFFERENT I CONTROL VALVE TRIM DESIGN
what is compensation? temprature & pressure
what is function of sensor, and how is it work , explain with difination
What are different types of control valves?
plz tell me clearly about PID.."when v have to change I value,D value,GAIN??
how to control pid
For crude application in floating roof tank, how to calibrate a DP Transmitter? How is the floating roof weight considered?
What is Positive Calibration and Negative Calibration?
How many interlocks at turbine side?
how to calibrate mass flow meter (Coriolis)? Example calibration range: 0 to 2500 kg/hr line size 3" fluid: Etheline glycol (MEG)
In a gas over oil actuator, after the opening/closing of valve, how the gas is vented out? How does the hydraulic/gas circuit function?
can u briefly explain aboutan aryton shunt multirange DC ammeter?