How to use the precision digital pressure gauge operation
1. Power On/Off: Press “On†key to turn on the power of the instrument. The LCD shows the measurement status of the instrument. Press the “and†key to turn off the instrument and cut off the power.
2. School zero key: Before measurement, press this key, the instrument will automatically collect the zero value of the sensor and send it to the CPU for processing to ensure that the measured data of the instrument is the actual pressure value.
3, pressure health: If the LCD shows pressure, current measurement state, press this button, the meter switches to "KPa, mmH2O" or "MPa (Kg)" at the same time show the state.
4. Current key: When it is necessary to detect the instrument current, press this key once and the LCD displays the measured value. Press this key repeatedly to switch between pressure, current and current percentage.
5, backlight key: work in the dark environment, press this button, turn on the backlight, easy to read.
6. Detection transmitter: The instrument is equipped with a 24VDC power output. When detecting the transmitter, turn the meter directly to the current position, insert the red meter pen into the “24V OUT MAX30 mA†hole, and insert the black meter pen into “mA IN MAX20 mAâ€. The "+, -" pole of the transmitter is directly connected to the transmitter. If the 24V output voltage of the instrument is not required, the red and black meter pens can be directly inserted into the “mA IN MAX20 mA†and “COM†in series to a 24V voltage regulator and then directly connected to the transmitter. The transmitter can also be detected.
7, digital pressure gauge pressure, current full scale calibration:
(1) Pressure full-scale calibration: If the meter displays "Kpa (MPa)" and "mA", press "Pressure key" to switch the meter display to "Kpa (MPa)" and "mmH2O (kg)" and display the status at the same time. After pressurizing to full-scale stability, press “Pressure, current key†at the same time. At this time, the first line of the LCD display shows: FS ADJ B, the second measured pressure value, indicating that it has entered the pressure full-scale calibration state. At this point, simply press the “backlight key†to calibrate and automatically exit the full-scale calibration procedure and enter the normal measurement state.
(2) Current full-scale calibration: Press "current key" to switch the display to mA and % simultaneously. Add a stable DC20.000mA standard signal between mA IN and COM, press "Pressure, current key" at the same time, the first line of LCD display shows: FS ADJ B second measured current value, indicating that it has entered Current full-scale calibration status. At this point, simply press the “backlight key†to automatically exit the full-scale calibration procedure and enter the normal current measurement state.
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