MY-GJ100-M6W semi-automatic micro pressure calibrator

Semi automatic micro pressure calibratorDetailed information:

MY-GJ100-M6W semi-automatic micro pressure calibratorIn addition to being used as a high-precision calibration standard (meter), it can also be used as a work position meter and is widely used in special departments such as nuclear power, power plants, petroleum, Sinopec, aviation, military, power and chemical, natural gas, metrology, and scientific codes. The high performance of this processing method ensures continuous co correction of Yuedian points and linearity, ensuring good repeatability and image quality of points and virtual positives over a long period of time, and high measurement accuracy.

Overview of Electric Pressure Calibration Instrument

l、 The semi-automatic micro pressure calibrator is a multifunctional instrument that can measure: ± 25mADC current or ± 50VDC voltage while measuring pressure. It tests the pressure switch and automatically records the pressure switch value. It has a 24VD output and can be used as a power supply for 4-20mA two-wire transmitters. It also has the function of recording maximum and minimum values.

2. Using a 24 bit high-performance A/D converter combined with a high-performance microprocessor to continuously adjust the various performance and technical indicators of the instrument, ensuring that the instrument can be used over a wide temperature range for a long time without affecting its accuracy.

3. Low power consumption, the battery adopts imported high-energy lithium batteries, with an aluminum alloy casing and a silicone rubber protective cover, which has a beautiful appearance, is sturdy and durable, and has strong anti-interference ability.

4. Intelligent charging, with automatic shutdown and protection functions for battery overcharging and undervoltage. The low-power shutdown protection function protects the instrument from battery energy damage when not in use for a long time, ensuring the longevity of the battery,

5. The instrument has rich range functions and can be used for multiple purposes.

6. Adopting thin film panels and imported tactile switches, the style is novel and the button life is long.

7. Backlit LCD multi-channel display with low power consumption and long lifespan.

8. The digital calibration of pressure, current, and voltage does not require any hardware adjustment, and can be directly operated on the panel to calibrate zero and full range.

9. Built in six digit high-precision DC digital voltage and current meter.

1. Equipped with RS-23 or RS-485 interfaces, it can communicate with the upper computer, transmit real-time measurement data to dedicated inspection software, record data, automatically generate tables, calculate errors, and store and print calibration data. Can calibrate pressure transmitters, pointer pressure gauges, pressure switches (pressure controllers), etc.

11. There is a drainage outlet inside the product, which can filter out oil and impurities, and screw out the cap for drainage.

Application of semi-automatic micro pressure calibrator:

The intelligent digital pressure calibrator can not only be used as a high-precision calibration standard (meter), but also as an on-site calibration instrument, widely used in metallurgy, petroleum, chemical, power, natural gas, metrology, and scientific research departments

Working principle of semi-automatic micro pressure calibrator

a、 Pressure: The measured medium is applied to a solid-state (silicon diaphragm) sensor. When the pressure changes, the resistance of the diffused silicon diaphragm changes under the pressure resistance effect. This change is detected as an electrical signal and converted into a voltage signal proportional to the pressure through a circuit. The signal is then converted into a digital signal by a 24 bit analog-to-digital converter and processed by a microprocessor. The digital value of the measured medium pressure is displayed on an LCD monitor.

b、 Current and voltage: When the secondary probe is randomly inserted into the corresponding socket on the instrument panel, the instrument can be turned on to the current or voltage range for measurement. The measurement data is collected by 24 bits A/D and sent to the microprocessor for linear, temperature, and full-scale processing. Finally, the measurement value is displayed on the LCD screen.

Technical instructions for semi-automatic micro pressure calibrator

1. Pressure range: -10~10kPa, -20~20kPa, -30~30kPa, -40~40kPa, -50~50kPa, 60-60kPa (range selection is shown in the attached table). Multiple intelligent digital pressure modules can also be selected, with unlimited quantity and range, and automatic recognition and easy use (module selection is shown in the attached table). Optional gauge pressure, absolute pressure or differential pressure measurement can be used in combination with manual pumps or pressure calibrators to calibrate pressure transmitters, spring tube pressure gauges, pressure switches, etc

2. Resolution: Pressure: Min O.01Pa (resolution varies depending on the measurement range)

3. The ultra small urine is powered by an electric battery and can be used in any occasion without worrying about power issues

Current: 0.1 μ A Voltage: 0.1mV

5. Current measurement range: ± 25.0000 mA, voltage measurement range: ± 50.0000 V

6. DC power output: 24VDC ± 10%, maximum load current 50mA

7. Accuracy: Pressure: 0.05% F • S 0.02% F • S

Voltage and current: (0.01% R.D+0.005% F • S)

8. Temperature range: 0-50 ° C

9. DC working time: ≥ 80 hours, depending on the working conditions

10. Display: 5 or 6 digits optional

11. Relative humidity: ≤ 80% RH

12. Overload capacity: 1.2-1.5 times the upper range limit

13. Dimensions: 390mm x 300mm x 210mm

14. Weight: 10.8kg

15. Power supply: 3.7V/3000mAh lithium battery, charging voltage 5V, with battery level display function, easy to understand battery usage

Operation of intelligent electric pressure calibrator

l、 Power button: Press the power button to turn on the instrument power, and then automatically switch to measurement mode; Press the power button again to shut down the instrument panel and cut off the power supply.

2. SWTCH TEST/MAX/MIN keys: used to select the pressure switch test recording function or the maximum and minimum value recording function.

3. V key: used to select ± 50V DC voltage measurement.

4. MA key: used to select ± 25mA DC current measurement.

5. Pressure key: used to select the measurement pressure operation, and when the instrument is equipped with multiple pressure modules, it is used to select the pressure module range.

6. ZERO key: Zero calibration key. Press the ZERO key once before measurement, and the CPU inside the instrument will process the zero point to ensure accurate measurement data.

7. Key: Used to confirm the selected operation item. When the cursor is on the pressure measurement item, this key is used to select the pressure unit. Pressing this key repeatedly can PSI、inH20、inHg、mbar、bar、mmH2O、mH2O、mmHg、mHg、kgf/cm2、Pa (KPa)、kPa (MPa) Cycle between them

8. Key: Backlight key, used to turn on the instrument backlight. When the cursor is in the pressure display area, it is used to select the pressure 5-digit or 6-digit display. When calibration is needed, select the calibration object (voltage, current, or pressure) and press and hold this key for 3 seconds to enter the calibration state. Press the button to select the calibration option: Full range calibration (FS Cal displayed on the screen), then press the ZERO button to eliminate zero point error (absolute pressure zero point is 10kPa). After adding to full range, press the button to confirm. The temperature position displayed on the screen shows a calibration prompt: 'E0' indicates successful calibration, 'E1' indicates a deviation of more than 5/100 between the given value and the full range value, and 'E2' indicates communication failure. If calibration fails, please check according to the error prompt and recalibrate. The positive and negative pressure ranges need to be calibrated separately for the full range of positive and negative pressure. After the calibration steps are completed, the test can be carried out according to the normal steps. Before testing, press ZERO to zero.

9. Detection transmitter: The instrument is equipped with a 24VDC power supply. When testing the transmitter, simply turn on the instrument to the current measurement function and connect it to the transmitter according to the wiring instructions on the instrument panel to test the performance of the transmitter.

10. Over range alarm: This instrument has an over range alarm function. When the applied pressure exceeds the rated full range by a certain amount, the instrument will flash and the built-in buzzer will intermittently sound to indicate that the pressure or voltage (current) exceeds the full range. At this time, the pressure should be stopped and some of the pressure should be removed to keep it within the specified range to avoid damaging the pressure sensor.

Attachment: Range selection (special ranges can be customized)