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232020.05
Words about Pressure Sensor
Absolute Pressure: it is measured relative to a full vacuum. Output is proportional to the difference between applied pressure and a built-in vacuum reference.Gauge Pressure: it is the pressure relative to atmospheric pressure. Gauge pressure is positive for pressures above atmospheric pressure, and negative for pressures below it. Output is proportional to the difference between applied pressure and atmospheric (ambient) pressure.Differential Pressure: it is the difference between any two applied pressures at Port 1& Port 2. Output is proportional to the difference between the pressures applied to each port (Port 1 – Port 2).Accuracy(Total Error Band):is the max. deviation at 25°C in output from ideal transfer function at any pressure or temperatureover the specified ranges, units are in percent of full scale span (%FSS), all errors by consists of: Offset; Full Scale Span; Linearity(Non-linearity); Repeatability; Hsteresis(pressure&temperature); Thermal effect on offset(offset shift); Thermal effect on span(Span Shift).Offset( Zero output) : it is defined as the output voltage at the minimum rated pressure.Full Scale Output (FSO): it is defined as the output voltage at the maximum or full rated pressure.Full Scale Span (FSS): it is the algebraic difference between the output voltage at full-scale pressure and the output at zero pressure.Non-linearity(Linearity): the deviation of measured output from "Best Straight Line" through three points (Offset pressure, FS pressure and ½ FS pressure)at constant temperature.Repeatability: the deviation of measured output when the same pressure is applied continuously, with pressure approaching from the same direction within the specified operating pressure range,under the same operating conditions.Pressure Hysteresis: the deviation of measured output at any pressure within the specified range, when this pressure is applied continuously, with pressure approaching from opposite directions within the specified operating pressure range, under the same operating conditions.Temperature Hysteresis: the deviation of measured output at any temperature within the operating temperature range, after the temperature is cycled to and from the minimum or maximum operating temperature points, with zero differential pressure applied.TcOffset(TcO:Temp. Coefficient of Offset): the deviation of measured output with minimum rated pressure applied, over the temperature range of 10° to 60°C, relative to 25°C.TcSpan(TcS:Temp. Coefficient of Span):the deviation of measured output over the temperature range of 10° to 60°C, relative to 25°C.Pressure range(Operating pressure): The maximum pressure that may be applied to the sensor in continuous use.Overpressure(Proof pressure): the maximum pressure which may be applied without causing durable shifts of the electrical parameters of the sensing element and remain the specification once pressure is returned to the operating pressure range.Burst Pressure: the maximum pressure which may be applied without causing damage to the sensing die or leaks; The sensor should not be expected to recover function after exposure to any pressure beyond the burst pressure.Compensated Temperature: the temperature range over which the sensor have an output proportional to pressure within the specified performance limits.Operating Temperature (Aient Temperature): mbthe temperature range over which the sensor have an output proportional to pressure but may not remain within the specified performance limits.Response Time: it is defined as the time for the incremental change in the output from 10% to 90% of full-scale pressure.Warm-up Time: it is defined as the time required for the sensor to meet the specified output after the pressure become stabilized.
182021.01
FAQ
Q: Whats your most advantage on CFSensor pressure sensor?A: We are one of very few companies that only devote to pressure sensor. We process from die design to sensor package, which can make the cost much low and bring you more profit accordingly. The cost-effective product, fast delivery, flexible service will bring you unprecedented shopping experience.Q: Whats the MOQ of pressure sensor ? Do you accept the sample order for test purpose?A: Yes, the MOQ can be 5pcs or 10pcs normally for most pressure sensor type, please refer to our quotation policy or contact us for more information.Q: Can you send us some pressure sensor sample freely?A: As company policy, the samples need be charged and freight is prepaid or collective via your express account, like DHL,FedEx,UPS or TNT etc.Q: How we can can pay for samples or trial order of pressure sensor?A: Paypal is the most welcome for small amount, but we also accept other payment terms like credit card, wire transferring etc,.Q: Whats the lead time?A: Normally we can deliver the goods immediately once payment arrive at our bank account because we have plenty of inventory for most of our products. Or, we need about 30days for manufacturing and delivering an usual order under without stock. There will be 90days for custom products or shortage of die that is applied in the sensor.Q: Can you do OEM/ODM service or any custom service?A: Sure, please forward us complete requirement, including drawing, parameter, quantity, and any available details, then we will evaluate the products for you, as well as quotation.Q: I am using the pressure sensor from other suppliers, I want to replace it with yours, how I can process?A: Please tell us the product model that you are using, or the photo and some typical parameters if you don’t know the part number, we will recommend you the replaceable pressure sensor.Q: I am not good at the circuit design, how I can do if I want to use CFSensor pressure sensor?A: We recommend you the application circuit or other solutions .Q: We have factory in China for assembling my device, can you deliver the pressure sensor to the factory?A: Yes,we can ship to your factory directly and assist them for application.Q: Whats the warranty policy of your pressure sensor ?A: We warrants its products against defects in material and workmanship for 12 months from the date of shipment, for more information, please see company warranty.

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