Pressure sensors FAQ
Pressure sensors and Leakage sensors FAQ
- About Products (2)
Q16. Product lineup in accordance with UL991
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We are considering using a pressure sensor for a semiconductor manufacturing machine. Are UL991-compliant ones available from you?
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Yes. Our product lineup Pressure gauge PG-20,a pressure gauge installable into integrated gas units.Pressure gauge PG-20 series
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Pressure gauge PG-20 series
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Q17. How to solve E2 ERRORs in pressure gauges
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We restarted a PG-75 for the first time after long-term non-use. Its zero adjustment resulted in an "E2 Error" message. How should this be dealt with?
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The "E2 Error" message occurs as a result of zero adjustment performed with a residual pressure exceeding ±10%. To undo the error, press the M key. After venting the pressure to atmosphere, perform zero adjustment again.
Q18. Effects of the use of not specified power supplies
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According to its specifications, the P-3000S is driven with a standard constant current of 1.5 mA. Is there any problem when it is driven with a constant voltage of 5 V? Besides, what will become of the accuracy of linearity and that of the temperature characteristics when a 1-mA current is set for a constant current drive?
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The P-3000S is a high-precision pressure sensor with a built-in temperature compensation circuit. Temperature compensation is driven by a power supply with a constant current of 1.5 mA to optimize the temperature within a range of 0°C to 50°C. The driving power supply can still work with a constant voltage of 5 V, which, however, results in poor temperature characteristics. With a constant current of 1 mA, the output voltage will decrease, resulting in poor temperature characteristics.
Q19. How to solve Zero Point ERRORs in pressure gauges
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The PG-100 handy manometer we use reads "-00.3" at power-on. The normal reading should be either "00.0" or "00.1." Is our PG-100 out of order?
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The zero reading of the PG-100 may shift depending on external factors, such as a change in the ambient temperature. The PG-100 has a zero adjustment trimmer at its top. Adjust the trimmer with a precision screwdriver.In addition, the zero-point adjustment of the new dry cell-powered type is a digital type that can be operated by a one-touch button..
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Current products: Dry battery driven (2 types)
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Discon product: Lithium battery driven
Q20. Batteries replacement notice of Manometers
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Is it normal that the reading by the PG-100 manometer appears thin when its battery is running low? Does a dying battery result in a reading lower than the actual pressure? Is there any method we can check with as the reference for the time to replace the battery?
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When the battery is running low, "LOBAT" appears in the upper left part of the LCD to prompt the user to replace the battery.
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1. Dry battery driven (2 types)
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2. Lithium battery driven
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Q21. About elements and materials of pressure sensors
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We have adopted the PG-35 pressure gauge as the atmospheric pressure detector for the vacuum equipment we manufacture. The specifications for the equipment of an end-user who has placed an inquiry for our vacuum equipment require that the atmospheric pressure sensor to be used shall be a semiconductor sensor with a diaphragm made of stainless steel. Does the PG-35 meet this requirement?
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The liquid contact part of the PG-35 is made of SUS 316L stainless steel and meets the requirement. Note, however, that the sensor module of the PG-35 is a dual-diaphragm pressure transducer with sealed-in silicone oil. Use under high vacuum may cause the air entrapped in the silicone oil to bubble, resulting in a shift in the zero voltage. For use under a pressure of 1.3 kPa abs or lower, we recommend the PG-35L, a silicone oil-free, thin-film element pressure gauge. Click here to download the brochure for the PG-35L.
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A. Double diaphragm(Oil-enclosured) type
Series name Pressure lower limit P-8300, P-8305, P-8505, PA-750, PA-758, PA-800, PA-830, PA-838, PA-838-D, PA-840, PA-848, PA-850, PA-858, PS8, PS83, PS85, PG-35,PG-75, PG-208, PG-100B 1.3 kPa abs. -
B. Thin film type(High vacuum compatible)
Series name PA-920S, PA-928S, PA-930, PA-930-A, PS91, PG-20, PG-35L
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Q22. Manometers selection for organic solvent medium
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We want to use a PG-100-102A at hand to measure a fluid containing a diluted organic solvent. Is this possible?
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The medium for use with the PG-100-102A is a noncorrosive gas (moisture-free air or inert gas). For users intending to measure the pressure of a fluid containing an organic solvent, we recommend the PG-100B-102A with a pressure receiver made of SUS 316L stainless steel.
Q23. Use at high altitudes / Kind of pressure references
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We are considering using a PS6-102G-NAR in a location at an altitude of 1,000 [m]. Can it be used in this way?
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Yes, it can. The PS6-102R-NAR pressure switch reads gauge pressure using atmospheric pressure as its reference pressure (0 kPa), and its altitude standard at the height of 1,000 m is atmospheric pressure.Pressure indication method
Q24. Out of Production
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What is the discontinuation information for the pressure sensor?
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Information on discontinued products and alternative products is posted on the company's HP product information page.
Q25. How to operate the settings of Pressure gauge PG-30/PG-35？
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Can you tell me the panel settings and operation steps of the pressure gauge PG-35l purchased? Is there any explanatory material that beginners can understand?
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The various operation panel setting modes of the pressure display gauge PG-30/35 series are explained in a simple and easy-to-understand manner in the YouTube video. Click the play button to watch YouTube video.
We have videos available for each setting for PG-30/PG-35.
Video Library