Constant precision digital pressure gauge overtravel how to clear zero

Hello glad to answer your question Shanghai Tongwei instrumentation to tell you the answer hope to be adopted

That strong magnetic suction back on it

The company's production of digital pressure gauges using imported MCU and high-resolution AD converter, can to achieve high precision, low power requirements. Large screen liquid crystal display, data is clear and easy to read. The shell is made of stainless steel, corrosion-resistant, resistant to mechanical pressure, the body as a whole using sealing technology, can be applied in a variety of complex environments. A lithium battery power supply, can work continuously for 2 years, is the ideal choice to replace the traditional mechanical meter.

I Process Characteristics

Electrical Characteristics: Operating Power: 3.6VDC; ? Power consumption: 100 microwatts

Operating temperature: 0℃~+70℃ ?

Operating humidity: 10% ~ 90% (non-condensing); continuous operation time: more than 1 year

Accuracy level: 0.25%; 0.5%; 1%;

Measuring range: -100Kpa ~ 60Mpa (optional);

Pressure units are freely switchable: Mpa , Kpa, Kgf/cm2, Bar, mBar, Psi

Two, the main purpose:

1, oilfield water injection, wellhead container equipment pressure measurement;

2, crude oil export: power equipment, pipeline pumps, import and export pressure measurement;

3, petrochemical: production process of vacuum, micro-pressure and corrosive gases, liquids pressure measurement;

4, hydraulic system, Refrigeration, process monitoring;

5, high-temperature media, viscous media, liquid height measurement;

6, air conditioning, gas treatment equipment, respiratory, medical equipment, laboratories, compressors, and other pressure measurement;

7, other suitable places.

Three operating instructions

The product's sensor and display processing part of the integrated design structure, easy to use, the instrument and the measured body using threaded direct connection, the meter does not make any requirements for the placement angle. Before using the measurement, you should estimate the approximate pressure range of the target to be measured, so as to avoid mechanical damage to the sensor due to excessive pressure beyond the measurement range. The pressure response time of this product is 1S.

Four Precautions

This product is a precision instrument, using liquid crystal display technology, use in bright light will reduce the service life of the LCD screen, and may make the data recognition is not clear, the consequences of accidents caused by the factory will not be responsible. Instrument receiving liquid part of the stainless steel metal material and diffusion silicon pressure sensor, measurement of strong acid, strong alkali media should be selected with diaphragm type digital pressure gauge. This product uses non-rechargeable lithium batteries, after use of the battery should be properly disposed of (can be mailed back to the factory unified processing) to avoid environmental pollution. Used in high or low temperature (greater than 50 ℃, less than -10 ℃), more than 50 ℃ should be added to the heat sink, otherwise the measurement accuracy can not be guaranteed, and too high a temperature in the case of lithium batteries have the danger of explosion, in the process of storage or transportation should be aware of the instrument temperature. As this product is an electronic product in the strong electromagnetic field will cause the instrument to malfunction, resulting in inaccurate display value or simply can not display and so on, but will not cause intrinsic damage to the instrument. Different instruments have different pressure measurement range, under normal circumstances can be used in more than 10% of the range, and further use of the range may cause mechanical damage to the sensor, resulting in the measurement of gas or liquid leakage, this damage is irrecoverable, and the consequences of the factory does not assume any liability.

V Troubleshooting

The product in the process of transportation and use, due to environmental interference, man-made operation and improper use of the reasons, may cause the instrument can not work properly and display. For simple faults users can eliminate by themselves, other faults need to return to the manufacturer for maintenance. The following list of tips for troubleshooting methods.