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 is standard of DCS panel design?and what is step of DCS panel design?wiring and type of connector(screw or DB connector)

0 Answers  

---

WHICH INSTRUMENT USED TO CALIBRATE CONTROL VALVE?

8 Answers  

---

what is instrument philosophy

0 Answers   United Automation,

---

DEAR SIR/MADAM MY NAME IS ARKAPROVA BHATTACHARYYA.I AM A FRESHER INSTRUMENTATION ENGINEER.CAN YOU PLEASE SEND SOME QUESTION PAPERS OF GRADUATE ENGINEER TRAINEE EXAM OF DVC(DAMODAR VALLY CORPORATION).MY EMAIL IDs ARE arka_aec@rediffmail.com.

0 Answers  

---

what is the use of shield cable?

2 Answers  

---

please tell me five types of fault of control valve and positioners?please

1 Answers  

---

Good Evening all.My question is - For a feed water line to an equipment if i need to measure the flow we will use orifice /magnetic/vortex depend on cost/spec.If i need to measure a ''Alarm''signal and ''Interlock'' from one point i think we can use orifice type in one location with 2 different tapping points - one for alarm and one for an interlock to flow valve..If in case i need to have both these signals(Alarm & interlock) from magnetic flow meter,is it possible??will 2 seperate sensors will be located inbuilt r we can program it ??..i thk we can have one transmitter with these 2 signals...need to know any technical issues are there?pls clarify

3 Answers  

---

Difference between guide wave radar & non guide wave radar ?

1 Answers   UPL,

---

what is the responsibility of an instrument commissioning supervisor

0 Answers   Petrofac,

---

Sir, I am working as a Instrument Engineer in Grasim Industries. Can any body provide question answer for interview purpose

0 Answers   Grasim,

---

Coriolis flow meter coil supply is 24vdc but why still we given 230ac for this transmitter let me explained detailed review please

1 Answers   Shell,

---

we have a s-5 simense plc having op7 .recently on op7 showing error 1.plc not present 2. DB error frequently. can u have any solution . please send me.

0 Answers  

---