Pressure generator for portable instrument

A portable pressure calibration system comprising:

• a handheld measurement module having a pressure differential sensor with a high pressure input and a low pressure input;
• a pressure differential generating module associated with said handheld measurement module, said pressure differential generating module comprising:
• a pump with an output line;
• a flow control valve on said output line;
• a high pressure line in communication with said output line, downstream of said flow control valve and having a high pressure output and adapted for fluid connection to a high pressure port of a pressure measuring device;
• a pressure generating element in communication with said output line, downstream of said high pressure line;
• and
• a low pressure line in communication with said output line, downstream of said pressure generating element and having a low pressure output and adapted for fluid connection to a low pressure port of a pressure measuring device.

A portable pressure calibration system comprising:

• a handheld measurement module having a pressure differential sensor with a high pressure input and a low pressure input;
• a pressure differential generating module associated with said handheld measurement module, said pressure differential generating module comprising:
• a pump with an output line;
• a flow control valve on said output line;
• a high pressure line in communication with said output line, downstream of said flow control valve and having a high pressure output;
• a pressure generating element in communication with said output line, downstream of said high pressure line;
• a low pressure line in communication with said output line, downstream of said pressure generating element and having a low pressure output;
• a probe having a probe high pressure line and a probe low pressure line;
• and
• a calibration manifold providing fluid communication between said probe high pressure line, said high pressure input and said high pressure output and providing fluid communication between said probe low pressure line, said low pressure input and said low pressure output.