Answer / carl_ellis

Burn-out is a fail-safe setting, normally associated with
control equipment, but also used on monitoring devices like
recorders to indicate the loss of a valid input signal. For
controllers, burn-out drives the calculated output to a

condition that is considered safe for the process, typically
to a state where energy is not put into the process.

Burn-out is configured to go up scale (full scale), or down
scale (full scale).

For control purposes, when a signal that is a process
variable in a control loop goes full upscale, the
controller's output will drop to zero in a reverse action
controller.

Similarly, when a signal goes full scale down scale, a
controller's output will drop to zero in a direct action
controller.

Carl Ellis
Measure First

Where is the flow transmitter installed with respect to control valve, state reason.

1 Answers   ADMA OPCO,

---

Condensation within a sight glass? Would you expect there to be more problems when using a sight glass if there is condensation on the inside or the outside of the glass, and why?

1 Answers  

---

if the t/c o/p is 4-20mv then how plc recognize it because we are dealing with the 4-20ma in the plc ????????????????

7 Answers  

---

what is the input of ph sensor and meter during the calibration time and what is the output?

1 Answers   Sabic,

---

in which application we use bigger size actuator

5 Answers  

---

---

How can you differentiate Instrumentation to Electrical?

1 Answers  

---

why dead weight tester called dead weight tester.

5 Answers   QAFCO,

---

what is ZERO SUPPRESION and ZERO ELEVATION?

3 Answers   Reliance,

---

what is span adjusment of transmitter? what is the function of positioner/

2 Answers   Kent,

---

Valve positioner and actuators in detail.

0 Answers   MIEPL,

---

why 8bit microprocessor referred as 2^16?

2 Answers  

---

If range of 3-15 psi, a multiplying relay with a 1:2 ratio would give what output pressure for 6 psi input?

1 Answers  

---