Month: October 2010

This is RTD transmitter calibration video. This video show step by step how to calibrate the RTD transmitter. To calibrate the RTD transmitter the fluke 744 can be used. First Connect the RTD transmitter with the fluke 744. This connection need three wires, but the fluke doesn’t has three connection. So we use the jumper. Here is the tutorial video: […]

This is differential pressure transmitter response video. This video demonstrate the different of pressure transmitter response on low and high ports. The pressure transmitter is connected with the battery circuit and the voltmeter is connected in parallel to two hundred fifty ohm resistor. The pressure transmitter has two ports they are high pressure port and low pressure port. First, this […]

This is a 4-20mA loop regulation video. This video demonstrate the 4-20mA loop regulation video. In this video, the current is depending only on the pressure that trough the regulation circuit. When there is no pressure, the current still zero, and then when the pressure is applied the current will increase up to 12mA. This current does not depend on […]

This is a video about thermocouple calibration. This video shows step by step how to calibrate the thermocouple using the transmitter’s compensation circuit. The thermocouple is calibrated by the fluke model 744 calibrator. First look at the fluke, it shows the temperature is 200 F, using the datasheet of the thermocouple, 200F is equal to 4.907mV. Then connect wire to […]

Below is video tutorial about pressure measurement. DP (Differential Pressure) is widely used principle of all type of fluid flow. The overall energy will remain constant, because while the kinetic energy increasing, the pressure energy is decreasing and while the pressure energy increasing, kinetic energy decreasing. The crude oil extraction on the sea bay is using this principle. To increase […]

Below is video tutorial about electromagnetic flow meters. On this tutorial demonstrate the features of electromagnetic flow meters. Electromagnetic flow meters is widely used in conductive liquids such as water, acid and alkalies. Electromagnetic flow meters is using the principle of Michael Faraday 1832 discovery. When any liquid move into the magnetic field, a voltage is produced. How big the […]

Below is video tutorial about PC based control. PC based control is widely used in proses automation, machine controllers, industrial controllers and PLC. PC is developed in early 1990 when the chip processor is very expensive. The chip need special handling like special power supply and cooling. Intel and AMD have realized they can used a standard PC for controlling. […]