Handheld air pressure calibration pumps are portable pressure calibration tools with the following advantages:
※ Portability: Due to its small size and light weight, it can be easily carried to any place where pressure calibration is required.
※ Easy to operate: Usually equipped with an intuitive operating interface and simple operating steps, even non-professionals can quickly get started.
※ Quick calibration: The required pressure is quickly generated by a hand pump or an electric pump, which improves work efficiency.
※ Versatility: It can be used to calibrate various types of pressure gauges and other pressure measuring equipment.
※ Low maintenance cost: Due to its simple structure and low failure rate, the cost of maintenance and repair is also relatively low.
In industrial sites, the measurement of pressure parameters is crucial. Therefore, some large and medium-sized power, petroleum, chemical, metallurgical, pharmaceutical and food companies will use a lot of pressure gauges, pressure transmitters, pressure switches and other pressure measuring instruments in the production process. These instruments need to be debugged during the period from installation to trial production, or they need to be calibrated frequently after a period of use. If each pressure instrument is dismantled and calibrated before being installed at each measuring point, this will sometimes affect normal production and sometimes be inconvenient. Portable pressure calibrators can be easily carried to the site, and can be easily taken to each pressure measuring point for on-site calibration. After debugging, they can be directly installed at their measuring positions. The entire calibration work preparation work should be simple and the calibration work is very convenient.

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Xinyi Instrument supplies pressure transmitters for process control, hydraulic systems, petrochemical plants, water treatment, HVAC, power generation and general industrial pressure monitoring. Our pressure transmitter range covers gauge pressure, absolute pressure, differential pressure, high temperature media and digital communication applications.
Choose from compact pressure transmitters, smart 3051 differential pressure transmitters, diaphragm seal models, RS485 digital pressure transmitters and high frequency dynamic pressure sensors. Standard outputs include 4-20 mA, voltage output, HART and RS485 Modbus options, with stainless steel wetted parts and custom process connections available on request.
| Pressure Types | Gauge, absolute, negative pressure, differential pressure |
|---|---|
| Measuring Range | From low differential pressure to high pressure ranges up to 100 MPa, depending on model |
| Output Signals | 4-20 mA, 0-5 V, 1-5 V, 0-10 V, RS485 Modbus, HART options |
| Accuracy | Typical options include 0.1%, 0.2%, 0.25% and 0.5% FS |
| Process Connection | M20 x 1.5, G1/4, G1/2, NPT and customized thread connections |
| Wetted Materials | Stainless steel, 316L diaphragm and corrosion-resistant sealing options |
| Media | Water, oil, gas, air, steam and compatible liquid or gas media |
| Applications | Pipeline pressure, tank level, flow differential pressure, hydraulic pressure and automation systems |
A pressure transmitter converts the pressure of liquid, gas or steam into a standard electrical signal for PLC, DCS, recorder or control instrument input. It is widely used for pipeline pressure, tank level, flow measurement and process safety monitoring.
Confirm the pressure range, pressure type, medium, temperature, output signal, accuracy, installation thread, electrical connection and environmental requirements. For corrosive media, high temperature or sanitary applications, diaphragm material and sealing structure are especially important.
Gauge pressure transmitters measure pressure relative to atmospheric pressure. Absolute pressure transmitters measure pressure relative to vacuum. Differential pressure transmitters measure the pressure difference between two points and are commonly used for flow, filter and level measurement.
Yes. Xinyi Instrument can support customized pressure ranges, process connections, output signals, cable length, display options and model selection for different industrial applications.