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).

hello.my friends.i am an electronics & instrumentation engineer.i want to know Q1.why lugs use in instrumentation cable termination? Q2.if limit switch not working what to do?

2 Answers  

---

why we are using drum level control valve air to close?

0 Answers  

---

what is thermopile?

1 Answers   HNG,

---

Dear all... I have 1 0-400 duplex type RTD, I connected the A side to the temperature indicator and B side to the PLC panel, but when I have observed then found that The PLC side temp has the variation. and it was distub to other RTD temp also. so what can I do.pls help me

1 Answers   Worley Parsons,

---

WHAT IS DIFFERENCE BETWEEN TWO WIRE RTD AND THREE WIRE RTD?

5 Answers   Yokogawa,

---

---

in which mode of the zener diode act when load voltage is approximately constant

1 Answers  

---

Define magnetic flow meter and mass flow meter.

1 Answers   Ramco,

---

what do you mean by cathodic protection?

1 Answers   Saipem,

---

how to convert digital signal to analog signal in plc

1 Answers   UltraTech,

---

How many input(Analog and digital) and outputs(Analog and digital) are there in DELTA v DCS Version 7.0?

2 Answers  

---

What is the difference between HMI and Scada?

4 Answers   Schneider,

---

I am having a Phoenix digital to modbus converter. The o/p of the same is connected to flow computer FB407. But the digital signals are updated only after one minute in the flow computer. what may be the cause of delay in communication? Flow computer is having a scanning period of less than 1 sec.

0 Answers  

---