Answer / k.chandra seakhar

the flame sensor is working depend upon the ultravilot rays

Answer / sibapati acharya

Despite the type(which is dependent on frequncy range of
flame),the basic principle is that a concave lens is used
for directing the flame rays to a photo diode. the current
produced from the photo doide is condtioned for flame
detecting in BMS.

Answer / nilesh karpe

There are 2 types of flame detectors in market viz: IR
(infra red ) and UV (ultravoilet ray).

how can you change unit of totalizer in siemens mag 5000 flow meter?

2 Answers   PowerTech,

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IF ASK IN THE INTENVIEW WHAT TYPE OF BMS YOU USE?

1 Answers  

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sir, i preparing hpcl,ongc,barc,hal exams(instrumentation engg)pls send a placement papers

2 Answers   BARC,

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i am confusing about differential pressure transmitter as i seen so many DPTs in different ranges how can we calculate level and flow with mmh20 plz tel me

1 Answers  

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how to calibrate a control valve?

7 Answers   Reliance, Telecon Systems,

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i have height of stem drum level 1000mm.how i calculate the DP transmitter

2 Answers  

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what are the definitions of input, output, command & signal according to instruments controlled by PLC using DCS System?

0 Answers  

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what are the use of belew gear in general ??

0 Answers  

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what is different between modbus and serial link? please could anybody give right answer.

2 Answers  

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HELLO FRIENDS PLZ EXPLAINE ME WHAT IS ORIFICE?AND HOW WE ARE USING IT IN INSTRUMENTATION

5 Answers   Wartsila,

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Generally in which location ( JB or IO card or DCS) the thermocouple compensation is done.Also where they measure the atmosphere temp ( for compensation) in JB OR DCS panel? How they compensating that atmosphere temp? is any circuit for that ( like in rtd wheatstone bridge)?

3 Answers  

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What are the types of control valves available

0 Answers   CCIE,

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