East Tester ET-AY30 User Manual

Pressure calibrator

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ET-AY30/31 Pressure Calibrator
User Manual
Hangzhou Zhongchuang Electronics Co., Ltd.

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Summary of Contents for East Tester ET-AY30

  • Page 1 ET-AY30/31 Pressure Calibrator User Manual Hangzhou Zhongchuang Electronics Co., Ltd.
  • Page 2: Table Of Contents

    Contents Performance Index................1 Instructions for use................3 About the keys...................3 Measuring Interface................4 Basic Function Instructions...............5 Turning on/off..............5 Routine Measurement............5 Pressure Zero Calibration..........7 Switching pressure unit.............7 The instrument is in backlight.......... 8 Menu instructions................8 Routine measurement menu..........8 System setup menu............
  • Page 3: Performance Index

    Product introduction The pressure calibrator is simple in shape and practical in function, with the functions of voltage, current, resistance measurement, 24V loop power supply, temperature measurement and verified data recording. It is mainly used to check the general pressure gauge, precision pressure gauge, sphygmomanometer, pressure transmitter, pressure switch or other pressure instruments.
  • Page 4 data display. Pressure overload: When the pressure measurement value  exceeds 110%FS, overpressure is displayed and an alarm is given. Temperature measurement: (0~50) ℃; resolution 0.1℃;  accuracy: ±0.5℃. Operating environment:  Ambient temperature :(-5~50)℃; Relative humidity: <95% (no condensation); c.Atmospheric pressure :(86 ~ 106) kPa.
  • Page 5: Instructions For Use

    Instructions for use The installation shall be carried out in accordance with the  relevant provisions of GB3836.15-2000 "Electrical equipment used in explosive gas environment -- part 15: electrical installation in dangerous places (excluding coal mines)". Pay attention to the battery indicator icon on the upper right of ...
  • Page 6: Measuring Interface

    “MODE ” Mode key: short press the key to switch the display modules; short press the key in the options section of the “menu” interface to switch the value of options. “ ↑ ” Up key: short press the key in the “menu” interface to move the cursor up;...
  • Page 7: Basic Function Instructions

    and mA HART communication: 24V and mA Check the pressure switch: SW and GND Basic Function Instructions Turning on/off Turn on the main power switch on the back of the pressure calibrator, and long press the “LIGHT” key for 3 seconds to start the instrument.
  • Page 8 Numerical unit of pressure Numerical unit of electrical logging AVG/MIN/MAX value of pressure measurement AVG/MIN/MAX value of electrical measurement The percentage bar of the current measured pressure relative to the ⑪ full range. ② ③ ① ④ ⑤ ⑦ ⑥ ⑧...
  • Page 9: Pressure Zero Calibration

    Pressure Zero Calibration If the current pressure measurement value is within the range of (-10% ~ 10%), long press “ESC” to reset the measured value. Switching pressure unit Press “ ↓ ” to switch the pressure unit in the following order: kPa、psi、inHg、inH2O、mmHg、mmH2O、MPa、bar、mbar、atm、...
  • Page 10: The Instrument Is In Backlight

    The instrument is in backlight Press “LIGHT” to adjust the backlight brightness, there are 3 levels of backlight brightness to choose from. Menu instructions Routine measurement menu The routine measurement menu is shown in the figure above. AVG/MAX/MIN record reset: used to reset the AVG/MAX/MIN recorded value on the main measurement interface.
  • Page 11: System Setup Menu

    System setup menu System setup menu is shown in the figure above. Language: used to select the display language of the interface as Chinese or English. Auto power-off: used to select the auto power-off time with no keystroke operation. You can select "off, 5 minutes, 15 minutes, 30 minutes, 60 minutes".
  • Page 12: Hart Function

    HART Function HART Interface Long press the “ENTER” key to enter the menu, select the second item "HART", and then the calibrator will automatically turn on the 24V power output and send a handshake command to the transmitter connected to the calibrator and read the parameters at the same time. When the calibrator and the transmitter communicate successfully, it will display as follows: "Upper limit M"...
  • Page 13: Hart Operation Menu

    "Upper limit H" and "lower limit H" in the HART-1 interface represent the maximum and minimum measuring ranges set by the pressure transmitter. "Pressure H" and "current H" represent the pressure value and output current value currently measured by the pressure transmitter.
  • Page 14 HART setup menu is as follows: Introduction to HART setup menu: Zero calibration of current value: equals to zero reset, set the value currently measured by the pressure transmitter to 0. Forced output of loop current: the pressure transmitter is removed from the automatic control of loop current, and its output current is manually set by the calibrator with a range of...
  • Page 15: Saving The Verified Data

    point and full range point. The zero calibration requires the pressure transmitter to accept an accurate minimum range pressure that the user wishes to set, and then perform the calibration; full range point calibration requires the pressure transmitter to accept an accurate maximum range pressure that the user wishes to set, and then perform the calibration.
  • Page 16: Creating Verified Data Documents

    8.1 Creating verified data documents After entering the verified data saving menu, a document retrieval menu will appear, as shown in the figure below: You can check the previously created verified data documents in the menu, and use the keys of “...
  • Page 17: Verifying And Saving By Point

    “MODE ” to move the cursor to the bottom, and select "ok" to complete the creation of a new document or select "cancel" to exit. Verifying and saving by point After selecting a verified data document, the interface displayed is as follows: You can see in the interface how many pressure points have been selected when creating the document.
  • Page 18: Verification Completed

    The front number represents the number of verification record  document, and the rear number represents the pressure point number to be recorded. When the measurement of a certain pressure point is completed, just long press the “ ↓ “ key and the calibrator will automatically save the current measured data, and the pressure point number on the "verified data record identification"...
  • Page 19: How To Charge And Replace The Batteries

    There is an "end" option at the bottom of the screen. Press “MODE ” to move the cursor to the bottom, and select "end" and confirm, and then the verification recording process would be ended. The "verified data recording identification" at the upper part of the routine measurement interface will also disappear.
  • Page 20: Fault Analysis And Troubleshooting

    please charge in time. Not charging in time will lead to auto power-off of the instrument, which will greatly affect the service life of the battery. The instrument is powered by a built-in 3.7v lithium battery and charged by a 5V/1A charger. Please contact the manufacturer or distributor for battery replacement.

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Et-ay31

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