Pressure Transmitter
July 15, 2017Positioner
August 20, 2017
Hand Pump Pressure Calibrator
A hand pressure pump or manual pressure calibrator is used to test the proper functioning of pressure measurement instruments, including pressure gauges and pressure transmitters. Essentially, it is used to calibrate pressure measuring devices.
The hand pressure pump is designed for use with hydraulic fluids (such as transformer oil) and can typically be used within a pressure range of 0 to 700 bar. This hand pump is used to calibrate various types of pressure gauges, transmitters, and pressure sensors as a standard pressure source.
In general, pressure calibrators are categorized into two types: digital and analog. Manual calibrators, using a hand pump and a precise pressure gauge known as a test gauge, allow you to check a suspected gauge and ensure its proper operation. Some of these calibrators can measure up to nearly 1000 bar. Another well-known type is the dead weight tester (Dead Weight Tester), which is typically used for high-pressure measurements.
Types of Pressure Calibrators
Pressure calibrators are available in various types depending on their operation, including manual hand pump calibrators, pneumatic (air) calibrators, and hydraulic hand pump pressure calibrators.
The pneumatic (air) hand pump, capable of generating pressures from -880 millibar to 16 bar, is used for industrial applications and for calibrating low-range vacuum and pressure gauges. With the pneumatic hand pump, various pressure gauges can be easily calibrated with high accuracy.
In some models, the hand pump calibrator is multifunctional, capable of generating pneumatic pressure from a relative vacuum up to 60 bar, as well as hydraulic pressure up to 700 bar, all within a single device, which is quite unique. Essentially, the hand pump operates both pneumatically and hydraulically, and by combining the two, it can cover a wide range of pressure calibration needs.

Key Factors in Selecting a Hand Pressure Pump
When selecting a hand pressure pump or pressure calibrator, the following factors should be considered based on the intended application:
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Pressure Range
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Pump Type: Hydraulic or Pneumatic
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Measurement Accuracy
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Pressure and Vacuum Generation Capability
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Handheld (Hand held) or desktop (Desktop)
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Overpressure Adjustment and Protection