A calibration hand pump is a portable device that generates pressure for calibration instruments. The 2 main types of calibration hand pumps are pneumatic and hydraulic. The difference between these two is that pneumatci pressure pumps generate air pressure and hydraulic pressure pumps generate liquid pressure.
A calibration hand pump is used for testing and calibration of pressure measuring instruments. This is a simple, cost-efficient process to verify accuracy without needing much equipment.
A calibration hand pump can be used in a variety of situations. You can use these portable devices to verify pressure gauge accuracy when in the field. They are also perfect for low pressure instruments or wherever high pressure is not required. However, when it comes to the latter, there are high pressure calibration hand pumps for such situations.