Pressure gauges are created to measure the pressure of gas and water. The functional part of the devices is quite different. By design, they can also be different. In this case, it is important to consider the manufacturer of the model.
Displays in devices are installed the most diverse. Today there are both black and white, so color modifications. The number of buttons to control depends on the functionality of the device. In order to delve deeper into this issue, it is necessary to analyze the main types of pressure gauges.
Car modifications for tires
Automotive pressure gauges are distinguished by high measurement accuracy. However, the pressure of the reverb maximum is able to hold 900 bar. In this case, the management fees are very diverse. Some models are equipped with controller units. The pressure gauges are quite different in function. Many of them are capable of capturing values. There are also devices with a barometric option. With the automatic test function, pressure gauges are few.
Gas pressure gauge
Gas manometers are manufactured with selective reverbs. In this case, the accuracy indicator of the device does not exceed 0.2 IV. The models differ in displays. On average, an electronic gas pressure gauge can withstand pressure of 650 bar. Some modifications can be connected to a personal computer. Extenders for models are installed with different sensitivity.
Model for water
There are a lot of manometers for water on the market. Cases of these devices are well protected and do not allow moisture to pass through. Also on the market there are many shockproof modifications. The display on the water pressure gauges is usually installed in a small size. The value lock function is available in all devices. Filters are applied mesh type. On average, an electronic water pressure gauge can withstand 1200 bar.
Barometric devices
Devices with a barometric function are sold with displays of different resolutions. Chips in models are most often used three-channel type. Reverbs, in turn, are only magnetic. Filters in these devices can be installed very different. If we talk about the parameters, then the pressure of the devices is maintained at 700 bar. The error in this case does not exceed 0.2 IW.
Some models have a connector for connecting a personal computer. Devices are able to be used even at a temperature of -10 degrees. However, it is important to consider the disadvantages of this type of pressure gauges. First of all, we are talking about the low sensitivity of the device. In this case, expanders are installed, as a rule, at 5 microns. All this suggests that models with high pressure indicators can give a large error.
Devices with automatic testing option
Nowadays, an electronic pressure gauge for measuring this type of pressure is very rare. Chips for models are suitable for three- and four-channel. Directly reverbs are installed closed. The interface models can vary greatly. Sensitivity expanders have an average of 6.6 microns. In this case, the controller blocks are provided in different designs.
If we consider modern modifications, then special zener diodes are installed there. Direct signal transmission is carried out using reference diodes. Resonators in their characteristics are quite different. On average, the error in manometers of this type does not exceed 0.3 IW. Devices can be used in frost and heat.
Pressure gauges with storage devices
Pressure gauges with storage devices are often used in the industrial field. They are also great for conducting various experiments. Directly microcircuits for devices are often selected four-channel type with output to a personal computer. Reverbs can be found both open and closed.
Filters for models are modular. Given all of the above, the measurement accuracy of the devices is quite high. However, they are very demanding on temperature conditions. In turn, the pressure gauges of this type are very different in moisture resistance.
Dual Channel Models
An electronic digital pressure gauge on a two-channel microcircuit is able to quite accurately determine the pressure. Most often, models of this type are installed with built-in reverbs. The filters are directly used in a modular type. According to the accuracy parameter, the models can vary quite a lot.
Also, this indicator is affected by the threshold pressure that the device can withstand. Tetrodes in this case are not available on all pressure gauges. It is also important to note that the reference diodes in the devices are installed on a conductor basis. Resonators today are very diverse.
The use of three-channel chips
Three-channel microcircuits allow first of all to connect a manometer to a personal computer. The functional part of the device is very different. Reverbs are usually open type. In terms of sensitivity, expanders are not very different. On average, this parameter fluctuates around 6.5 microns. Controller blocks can be found both with zener diodes, and without them.
Accutire Pressure Gauges
The Accutire electronic tire pressure gauge is equipped with a three-channel chip. In this case, the control is quite simple. Directly a reset function is available. This model has no internal memory. The measurement sensitivity indicator is at the level of 0.2 VI. Directly connector for a PC is available.
To the ambient temperature, this electronic pressure gauge is very demanding. The case in this case is not moisture resistant. If we talk about design features, it is important to note that the reverb manufacturer provides a modular type. Directly the controller unit is available without a zener diode. There are three reference diodes in the pressure gauge. The resonator is used low sensitivity.
Accessories Model
This tire pressure gauge (electronic) is characterized by a highly sensitive resonator. An automatic testing function is provided in the device. The interface in this case is PP20. There are three reference diodes for signal transmission.
The controller unit is used without a zener diode. However, the chip has a three-channel type. It is also important to mention that the model has an interrupt mechanism. If necessary, turn off the pressure gauge very quickly. The system pressure is maintained at a maximum of 850 bar.
Features of BMW pressure gauges
This electronic pressure gauge is equipped with an interrupt mechanism. In this case, the resonator is used with medium sensitivity. Up to 500 bar, the accuracy of the device is 0.3 IW. There is no connector for connecting to a personal computer in the device. The model can be operated at a temperature of a maximum of +45 degrees. The barometric function of this pressure gauge is not provided. Filters in the model are used only in a modular type.
Model for gas "Carlife"
This electronic gas pressure gauge is made on the basis of a three-channel microcircuit. In this case, the reverb is open. In turn, the filter is installed modular. The interrupt mechanism for this device is missing. It should also be noted that the expander in the manometer is used for two contacts. According to the documentation for the device, its sensitivity is 5.5 microns.
The controller unit for control is used with a zener diode. In this case, this electronic pressure gauge has a fixing function. There are three reference diodes in the device. For better signal transmission, a special tetrode is used. The interface for the model is provided by P232. The resonator is presented with good conductivity. If we talk about the parameters of the pressure gauge, then first of all, the error of the model should be indicated.
At pressures less than 300 bar, the accuracy of the device is 0.2 PS. If the value exceeds 300 bar, then the error of the device increases to 0.4 IV. At the same time, the system is capable of withstanding a pressure of a maximum of 900 bar. A connector for a personal computer is provided for the model. The temperature compensation indicator ranges from -15 to +40 degrees.
Falcon devices
This pressure gauge is equipped with a standard dual-channel chip. It cannot be connected to a personal computer. However, there are quite a few functions in it. First of all, it is important to note the ability to fix values. At the same time, a barometric option is available for the device. The manufacturer has a built-in reverb. There are two filters in total in the pressure gauge.