Answer / carl_ellis

I assume "MURCREY" is mercury, the chemical with the symbol Hg.

On-Off temperature thermostat controllers have used a
mercury filled switch for control output.

Mercury filled thermometers have been around for centuries.

But I am unaware of a temperature transmitter filled with
mercury. 2 wire, loop powered industrial temperature
transmitters with a thermocouple input have been available
for decades.

Configuration of the temperature scale corresponding to the
4-20mA output range and sensor type depends on the make and
model of the temperature transmitter. Different methods are
configuration
- with a HART communicator
- with pushbuttons and a local display
- with a software program and serial communications cable
and modem (RS-232 or USB)
- factory configuration

Calibration generally consists of trimming the 4.0 and
20.0mA levels by the same means as configuration, above.

What are the two program execution modes of PLC?

4 Answers  

---

In turbine what does term CDP, NI, NH, HSSOC means.

0 Answers   ADMA OPCO,

---

while i check zero check for dp flow transmitter some fluctuating came (0 to 458 kg/h) what is the reason?

0 Answers   Petronas,

---

the output of the common trasmitter protocol in qatar gas are the following

0 Answers  

---

why magnetic flow meter is not used in thermel power plant operation

2 Answers   JK Paper,

---

What is the difference between Pressure Safety Valve and Pressure Relieve Valve, in what condition we prefer choose Pressure Safety Valve rather than Pressure Relieve Valve? and vice versa

2 Answers   Vedanta,

---

WHAT IS TMXT IN TEMPERATURE FOUNDATION FIELDBUS.

0 Answers  

---

Why Bently Nevada use negative voltage for vibration probes?

4 Answers  

---

how to calculate flow range in DP tx

1 Answers   Karnataka Power,

---

what is Best Among SINK Or SOURCE Type Design In Digital Signal, Either Iput Or Output? WHY?Can any one..

0 Answers   Accer, Reliance,

---

what is thermopile?

1 Answers   HNG,

---

What is Electrical Runout & Mechanical Runout in Vibration measurement.

1 Answers  

---