Differential Pressure Transmitters Calibration Guide
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| wire pressure transmitters |
Differential pressure transmitter measures the pressure difference between two different environments. Two level transmitters are connected to two columns and used to measure the pressure of a column with respect to other columns. For example, the pressure of a column of water will be reduced from the pressure of other water column to measure the differential pressure. Calibrated pressure transmitter is very important to get the accurate measurement.
Pressure transmitter calibration of these devices can be done in a few short steps.
1. The contents of two columns of the pressure transmitter with a liquid. The second column will be connected and will have a level transmitter that is located on the column.
2. Perform the
pressure transmitter calibration by setting a single column at the level of 0 percent - that is, even with the level of liquid level transmitters, so the pressure transmitter measures 0 per cent - and one column to be at 100 percent. Selection of level for this column is arbitrary as a transmitter only measure relative changes from one column to another. However, choosing round numbers, such as 1,000 millimeters of water column (mmWC).
"These OEM pressure transmitter/transducers feature a sputtered thin film sensor to provide consistent high levels of performance and stability for large volume OEMs. A choice of electrical outputs means the unit is suitable for most applications without modification."
3. Multiply the height of the liquid with a specific gravity of liquids and re-calibrate the transmitter to a new height of liquid column to measure pressure in one particular column. Differential pressure transmitter should now be ready to take measurements.
PDAs Series
digital pressure transmitter sensing technology integrates the latest solid state to be very flexible, easy to operate package. Adjustment range of programming features include programmable, pulse ease, zero (between) the adjustment and the user code settable lockout. Ceramic sensing system ensures a very long life cycles with virtually no shift in calibration. These features together with the package, a strong stainless steel compact PDA makes an ideal choice for OEM applications.
High-accuracy pressure transmitters
Transmitters offer exceptional long-term stability and enhanced accuracy. Typical applications include load weighing systems, compressor and dispensing equipment, lube oil pressure equipment, and factory automated equipment. RFI/EMI and ESD protection circuits exceed CE requirements protecting against noise, voltage spikes and static discharge. State-of-the-art ASIC chip in each transducer provides greater linearity correction than traditional thermal compensation methods.
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