0 ～ 1bar, 60bar PPM-T428A Valves And Compressors Pressure
Transmitter
Product Introduction:
PPM-T428 series pressure transmitter adopts piezoresistive OEM
sensitive components imported from Germany and is precision
packaged in a stainless steel housing. It has the characteristics
of high accuracy, high sensitivity, corrosion resistance, wide
operating temperature range, long life and high cost performance.
Designed for air and water applications, more and more used for
constant pressure water supply, environmental protection equipment,
gasoline and diesel engine pressure, air conditioning cooling
pressure, industrial equipment pressure measurement.
Applications :
Water supply, boiler, environmental protection equipment,
fireplace,Valves and compressors, booster pumps ,
Electro-hydraulic servo systems and equipment, agricultural
machine, Engine, internal combustion engine,
diesel engine, heat generating unit, steam turbine, water turbine,
locomotive braking system,
Hydraulic and pneumatic control equipment, industrial process
detection and control.
Technical Parameters :
| Measured medium: | gas, liquid and steam (non-corrosive fluid to 316L stainless steel) |
| Pressure type: | sealed reference pressure, ventilator pressure |
| Pressure Range: | 0 ～ 1bar, 6bar, 10bar, 0 ～ 16bar… 60bar |
| Power supply: | 9-32VDC |
| Built-in amplifier output: | 4 ～ 20mA, 0 ～ 10VDC, 0 ～ 5VDC, 1 ～ 5VDC, 0.5 ～ 4.5 VDC |
| Accuracy : | 0.5% FS 1% FS |
| Long-term stability : | 0.25% FS / year |
| Working medium temperature: | -40 ～ + 85 ℃ |
| Working environment temperature: | -40 ～ + 75 ℃ |
| Zero temperature drift: | ≤0.03% FS / ℃ |
| Sensitivity temperature drift : | ≤0.03% FS / ℃ |
| Response time : | ≤1ms (10% ～ 90%) typical value |
| Insulation resistance: | ≥1000 MΩ / 100V |
| Safe overload pressure: | 150% FS (1.5 times full scale) |
| Breaking pressure: | 500% FS (5 times full scale) |
| Connection method: | M20 × 1.5 external thread, G1 / 4 external thread, G1 / 2 external
thread |
| Enclosure protection class : | IP54 |
| Electrical output lead : | M12 × 1 connector, DIN43650 connector (Hirshmann connector) |
Definition of wiring:
| Hirschmann Connector |
| 2-wire system | 3-wire system |
 | Power supply | 1 | 1 |
| Negative power | 2 | 2 |
| Signal positive | 一 | 3 |
Dimensions in mm :
How can compressor pressure sensors help monitor and maintain
equipment performance in industrial and refrigeration applications?
Compressor pressure sensors play a critical role in industrial and
refrigeration applications by continuously monitoring the pressure
levels within compressors. They provide valuable data that helps
ensure equipment performance and maintenance. These sensors detect
deviations from optimal pressure conditions, alerting operators to
potential issues such as overpressure, underpressure, or system
leaks. By monitoring and maintaining pressure levels, compressor
pressure sensors contribute to the efficient and safe operation of
compressors, reducing downtime, preventing damage, and enhancing
overall system reliability.
What technology is typically used to measure pressure for this type
of sensor?
Compressor pressure sensors typically employ various technologies
to measure pressure accurately and reliably. Common technologies
include strain gauge, piezoresistive, or capacitive sensors. Strain
gauge sensors utilize the deformation of a diaphragm to measure
pressure changes. Piezoresistive sensors rely on the change in
resistance of silicon or metal under pressure. Capacitive sensors
measure pressure-induced changes in capacitance. These technologies
ensure that the sensors can adapt to different pressure ranges,
providing precise and consistent pressure readings in industrial
and refrigeration applications.
How can the compressor pressure sensor ensure its reliability and
safety in harsh environments and high-pressure conditions?
Compressor pressure sensors are designed to maintain reliability
and safety in harsh environments and high-pressure conditions
through the following features and practices:
Rugged Enclosures: Many sensors are housed in robust and protective enclosures made
of materials that resist corrosion, impact, and extreme
temperatures.
Pressure Range: Compressor pressure sensors are selected to match the specific
pressure range of the application.
Hermetic Sealing: Some sensors are hermetically sealed to prevent moisture, dust,
and other contaminants from compromising their performance.
Materials Compatibility: Sensors are constructed using materials compatible with the
substances or gases they will come into contact with.
Overpressure Protection: Many sensors incorporate overpressure protection mechanisms, such
as relief valves or diaphragm protection, to prevent damage in the
event of pressure spikes.
Calibration and Testing: Sensors are calibrated and tested rigorously to ensure accuracy
and reliability under extreme conditions.
Redundancy: In critical applications, redundancy may be employed, where
multiple sensors work together to provide backup measurements,
ensuring system safety in case of sensor failure.
