Answer / Sandeep Anannd

To calibrate an Electro-Pneumatic Positioner like the 8013 Mil Controls Ltd. GSR, follow these general steps:

1. Install the positioner on a linear air source, such as an air tank with a regulator. Ensure that the operating pressure is within the manufacturer's recommended range.
2. Set the desired position of the valve using the handwheel or position indicator.
3. Connect an accurate air pressure gauge to the positioner's output port and set the pressure to zero.
4. Adjust the positioner's air supply pressure according to the manufacturer's instructions, usually by turning the supply pressure adjustment knob.
5. Move the valve to the desired position using the handwheel or position indicator, while simultaneously monitoring the pressure on the gauge.
6. Record the required air pressure for that specific position.
7. Repeat steps 4-6 for other positions as needed until the entire calibration range is covered.
8. Compare the recorded pressures with the manufacturer's recommended pressure settings for each position and make any necessary adjustments to the positioner to ensure proper operation.

why we require Differential pressure?Why we use Orifice Plate?

3 Answers  

---

What is the use of control cable?

1 Answers  

---

why does a transmitter o/o signal starts from 3-15psi or 4- 20mA?

11 Answers  

---

what is difference between OP AMP and differential amplifier?

5 Answers   TCS,

---

what is zero trim and span trim?. at which problem we need to use this?

3 Answers  

---

Which standard is used for calibration of Control Valves ?

2 Answers  

---

Name some of the common protocol use in automation.

3 Answers   Empower,

---

Why boiler chimney area  oxyden sensor fixing? 

1 Answers   NTPC,

---

What is the relationship between GAIN and PROPORTIONAL BAND.

1 Answers   Kharafi National, Sabic,

---

how we can measure the interface level?is it possible to measure interface level with dp or pressure transmitter?

2 Answers  

---

What is the basic difference between 2 Wire, 3 Wire and 4 Wire RTD

2 Answers  

---

why 4 to 20 ma used at 0 set

2 Answers   Borouge, Yokogawa,

---