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SF6 Density Relay calibration device (Winfoss-A21)
SF6 density relay calibrator device
Supported platform: Windows/Linux/Unlix
Software size 10M
Brand: WINFOSS
Model: Winfoss-A21
Pressure measurement range: 0.1Mpa ~ 1.0Mpa.
Temperature range: -20℃ ~ 60℃ Resolution 0.1℃.
Measurement accuracy: level 0.25.
3.5 "color LCD display.
Instrument operating temperature: -20 ~ +60℃.
产品详情/ Product details
The SF6 density relay calibration device (WINFOSS-A21) is a kind of intelligent automatic SF6 density relay calibration instrument. The instrument adopts single-cycle instruction microcomputer technology, the running speed is 10 times that of ordinary single chip microcomputer. It can verify the SF6 density relay with pointer contact output and intelligent current output on the spot, and capture the action of density relay in real time by interrupt mode, so the measurement of the instrument is more accurate and timely. This instrument is a portable calibration instrument that can carry out standard conversion of SF6 gas pressure at any ambient temperature, and it can also check SF6 density meter and pressure gauge.
SF6 Density Relay calibration device (WINFOSS-A21)
Fully automatic completion, the whole process without external loss and emissionSF6Gas, health, environmental protection; Configure a full set of connectors corresponding to various switches at home and abroad, worry!
summarize
The SF6 density relay calibration device (WINFOSS-A21) is a kind of intelligent automatic SF6 density relay calibration instrument. The instrument adopts single-cycle instruction microcomputer technology, the running speed is 10 times that of ordinary single chip microcomputer. It can verify the SF6 density relay with pointer contact output and intelligent current output on the spot, and capture the action of density relay in real time by interrupt mode, so the measurement of the instrument is more accurate and timely. This instrument is a portable calibration instrument that can carry out standard conversion of SF6 gas pressure at any ambient temperature, and it can also check SF6 density meter and pressure gauge.
In a closed container, the SF6 gas pressure at a certain temperature can represent the density of SF6 gas. It is customary to take the SF6 gas pressure at 20℃ as the standard value. In the field verification, under different ambient temperatures, the measured pressure value should be converted to its corresponding pressure value at 20℃ to judge the performance of SF6 density relay.
The emission-free environment-friendly SF6 density relay calibration device (Winfoss-A21) can complete the calibration process automatically, without any pollution to the environment, easy to use and accurate measurement, and the Chinese menu operation is simple and clear.
Application site
Functional characteristics
l Relay calibrator adopts the analog-digital hybrid single-cycle high-speed single-cycle single-chip microcomputer as the core, which has rich resources and powerful functions, and strong data processing ability. l Because it integrates A/D, D/A, reference voltage and analog amplification in the single-chip microcomputer, the peripheral circuit is simple, good stability and high accuracy.
l The instrument is capable of fully automatic calibration of pointer and electronic density relays.
l The initial state of the 1 ~ 3 contact points of the density relay is any form (normally open or normally closed), and the response value and recovery value of the 1 ~ 3 contact points can be measured at the same time, so the instrument can adapt to the automatic verification of all new and old density relays.
l The instrument uses 320*240 large screen color LCD display, Chinese character operation interface, easy to use.
lWhen measuring, the instrument simultaneously displays the current pressure, corresponding to the pressure at 20℃, and the ambient temperature, which solves the problem of SF6 density relay on-site calibration.
lThe test process is automatic measurement to avoid errors caused by human factors.
The instrument can store 100 sets of measurement data and is permanently stored without loss, so that every measurement is traceable.
lThe instrument can upload the test data to the PC through the RS-232 interface, and automatically generate the special test data table; Field test data and historical storage data can also be printed through the instrument's built-in micro printer.
l The instrument can verify the normal temperature pressure gauge and density meter at any ambient temperature.
l All instrument pipelines are imported quick connectors, convenient connection and small air leakage rate.
l The instrument has a clock function inside, which can be corrected at any time.
l The instrument has self-calibration function. After using the instrument for a long time, the instrument can be calibrated and corrected to ensure the calibration accuracy of the instrument.
l Instruments with high precision pressure sensors and the world's advanced magnetic fluid technology products.
l The instrument is equipped with a variety of switch transition connectors, most of which can be verified without disassembly.
Technical parameter
item | index |
Measurement accuracy | Class 0.25 |
Display mode | Color LCD display (3.5 ") |
Measuring range | 0.1Mpa to 1.0Mpa |
Pressure display resolution | 0.001Mpa |
Instrument operating temperature | -20 ~ +60℃ |
Storage capacity | 100 groups |
Communication interface | RS-232 |
Printing mode | Table micro needle (standard) |
Temperature range | -20℃ ~ 60℃ resolution 0.1℃ |
Working power supply | AC: 220V± 10% 50Hz |
Instrument weight | Main machine 10.0Kg |
Main engine dimensions | Length 495mm× Width 310mm× The height is 315mm |
Dimensions of accessory box | Length 540mm× Width 360mm× 370mm high |
Check principle
The pressure of the gas closed in the container changes with the temperature, in order to have a unified standard for comparison, we usually take the relative pressure value of 20℃ as the standard value. When the density table is checked, it is converted into the equivalent pressure value at 20℃ according to the corresponding relationship between pressure and temperature, and then compared.
l Block return value check:
When the SF6 density relay needle is zero, the relay is charged at a slow and uniform speed. When the SF6 density relay emits a locking action, the pressure value at the ambient temperature is recorded and converted to the equivalent pressure value at 20℃, which is the locking return value of the SF6 density relay.
l Alarm return value check:
The SF6 density relay is charged at a slow and uniform speed. When the SF6 density relay sends an alarm action, the pressure value at the ambient temperature is recorded and converted to the equivalent pressure value at 20℃, which is the alarm return value of the SF6 density relay.
l Overpressure recovery value check:
Charge the SF6 density relay at a slow and uniform speed. When the SF6 density relay sends an overpressure signal, it starts to deflate the SF6 density relay at a slow and uniform speed. When the relay overpressure alarm signal is sent, record the pressure value at the ambient temperature at that time and convert it to the equivalent pressure value at 20℃. This equivalent pressure value is the overpressure recovery value of the SF6 density relay.
l Alarm value check:
At ambient temperature, when the pressure value in the SF6 density relay is higher than the alarm recovery value, it starts to release gas at a constant speed and slowly. When the SF6 density relay sends an alarm signal, the pressure value under the ambient temperature at that time is recorded and converted to the equivalent pressure value at 20℃, which is the alarm value of the SF6 density relay.
l Blocking value check:
The SF6 density relay is vented at a slow and uniform speed. When the SF6 density relay sends a locking signal, the pressure value at the ambient temperature is recorded and converted to the equivalent pressure value at 20℃, which is the locking value of the SF6 density relay.
l Overpressure check:
The SF6 density relay is charged at a slow and uniform speed. When the SF6 density relay sends an overpressure signal, the pressure value at the ambient temperature is recorded and converted to the equivalent pressure value at 20℃, which is the overpressure value of the SF6 density relay.
Service guarantee
l Provide on-site training guidance and carry out on-site demonstration operation.
l Provide detailed instructions and user guidance in Chinese.
lOne year free warranty, lifelong spare parts support and maintenance.
l Hotline 365 days to answer the user's consultation.