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Additel ADT681A User Manual

Digital pressure gauge
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681A/681AEx
Digital Pressure Gauge

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Summary of Contents for Additel ADT681A

  • Page 1 681A/681AEx Digital Pressure Gauge...
  • Page 3 Additel 681A/681AEx Digital Pressure Gauge -------User Manual [Version：2405V01]...
  • Page 4 Additel Corporation...
  • Page 6 This user manual provides operating and safety instructions for AdditelDigital Pressure Gauges. To ensure correct operation and safety, please follow the instructions in this manual. Additel Corporation reserves the right to change the contents and other information contained in this...

  • Page 9: Table Of Contents

    Content 1.Introduction ..................................2 1.1 General Introduction ..............................2 1.2 Technical Specifications ............................. 3 1.3 Features ..................................4 1.4 Basic Structure ................................5 1.5 Power Supply ................................8 1.6 Battery Life and Configuration ..........................10 2.Display and Operation ..............................12 2.1 Main Display ................................
  • Page 10 2.7.2 Occupied Storage Capacity ..........................24 2.7.3 Interval Setting..............................24 2.7.4 Clear Data ................................. 24 2.8 Screen Lock and Unlock ............................24 2.9 Password Keyboard Display and Editing ......................... 24 2.10 Numeric Keyboard Display and Editing ........................25 2.11 Cycle Selection Keyboard Display and Editing....................... 26 3.System Settings ................................
  • Page 11 3.7.2 Bluetooth Auto-off Settings ..........................40 3.7.3 Serial Settings ..............................40 3.8 Operation Error Codes ............................. 40 4.Connect to Additel Link App ............................41 4.1 Download Additel Link .............................. 41 4.2 Enable the Bluetooth..............................41 4.3 Connect to the Gauge .............................. 42 4.3.1 Scan the Code ..............................
  • Page 12 Figure Content Figure 1 Basic Structure ..............................5 Figure 2 Power supply by adaptor ............................8 Figure 3 ADT681A Power supply by battery ........................8 Figure 4 ADT681AEx Battery installation ..........................9 Figure 5 Main Display ............................... 13 Figure 6 Main Operation Interface ............................. 14 Figure 7 Pressure percentage indication ...........................
  • Page 13 Figure 23 Upper limit calibration point ..........................35 Figure 24 Upper limit calibration ............................36 Figure 25 Calibration status menu ............................ 37 Figure 26 Barometric calibration ............................38 Figure 27 QR code for downloading Additel Link ......................41 Figure 28 Scan code for connection ..........................42...
  • Page 14 Figure 29 Manual search for connection ........................... 42 Figure 30 RS232 module DB9 female pins description ..................... 44...
  • Page 15 Please be sure to store, transport and use this product in the correct direction;  If the product is damaged or malfunctions, please do not use it and contact Additel;  Never use the non-Ex version in an explosive, steam, or dusty environments.

  • Page 16: Introduction

    The power consumption of ADT681A /ADT681AEx is very low, which is suitable for long-term continuous work.Italso has excellent electromagnetic compatibility characteristics and obtained the CE certification and can be used in various complex electromagnetic environments.

  • Page 17: Technical Specifications

    1.2 Technical Specifications Table 1Technical Specifications ADT681A ADT681AEx Item Digital Pressure Gauge Intrinsically Safe Digital Pressure Gauge Ex-proof level None Ex ia IIC T4 Ga Protection Level IP67 Case Material φ118*42mm Dimensions Weight 682g Display FSTN segment LCD Button 4 Function buttons, 1 Power ON/OFF button...

  • Page 18: Features

    2. Operating Temperature：(-10～50) ℃； Environmental 3. Humidity：(10～95)%RH, non-condensing Pressure measure Please refer to Additel website and accuracy Barometric Range: (60~110) kPa.a, accuracy: ±55 Pa (optional) Functional features Peak value, filter, tare, pressure unit switch, resolution, absolute pressure, leak test, data logging.

  • Page 19: Basic Structure

    1.4 Basic Structure Figure 1Basic Structure...
  • Page 20 Table 2 Basic Structure Part Name Icon Description Show pressure, menu…… Display Short press: Enter data log menu in main display or return to previous menu in non-main display. Log button Long press: go to Settings in main display. Short press: Switch units in main display ormove to right in non-main display. Unit button Long press: view parameters in main display, or switch the features of fan-shape display...
  • Page 21 Communication module RS232 USB TYPE-C Communication and power supply Pressure module Visible after removing the back cover (with ATM mark), for barometer calibration Barometer port connection...

  • Page 22: Power Supply

    1.5 Power Supply For ADT681A, power can be supplied by battery or USB TYPE-C 5V adaptor. Figure 2Power supply by adaptorFigure 3 ADT681A Power supply by battery...
  • Page 23 For ADT681AEx, power is supplied by battery. Figure 4 ADT681AExBattery installation...

  • Page 24: Battery Life And Configuration

     Use only the approved battery models. 1.6 Battery Life and Configuration Table 4Battery life and configuration System mode Pressure display rate ADT681A battery life ADT681AEx battery life Normal 10 readings/ 1 s 1,000 h 1,000 h Low power consumption...
  • Page 25 9,000 h 7,000 h Low power consumption 1 reading/ 1 s (L) Low power consumption 1 reading/ 2 s (L) 10,000 h 9,000 h Low power consumption 1 reading/ 3 s (L) 11,000 h 10,000 h Low power consumption 1 reading/ 4 s (L) 12,000 h 11,000 h Low power consumption...

  • Page 26: Display And Operation

    Display and Operation 2.1 Main Display Main display as shown in Figure 5: ◆Status bar: Including battery, USB status, pressure reading rate HS (high speed), FILT, ABS,BluetoothREC, and button lock. When the battery icon is blank and flashing, Bluetooth will be turned off automatically. When the battery power is too low, it will prompt the low battery to automatically turn off and will start to countdown to turn off the gauge automatically.
  • Page 27 Figure 5 Main Display...

  • Page 28: Main Operation Interface

    2.2 Main Operation Interface After the pressure gauge is turned on, it first displays the interface of the original range of the pressure module. 3 seconds later, it will enter the main display immediately. The main display is divided into: status bar, pressure unit display area, identifier area,main display area, and sub display area, as shown in Figure 6.

  • Page 29: Buttons

    5. Sub display area: Display atmospheric pressure, tare value,leak test, maximum and minimum pressure, time, temperature, and pressure percentage. Long press Unit button to switch between them. 2.3 Buttons Power button: Short press to unlock the buttons.Long press to power on/off the gauge; Log button: Short press: in main display, go to data log menu;...

  • Page 30: Pressure Zeroing

    Figure 7 Pressure percentage indication 2.4.2 Pressure Zeroing When the gauge is in gauge pressure mode, press Zero button to zero the pressure. When in absolute pressure mode, the zeroing operation cannot be performed. 2.4.3 Pressure Unit Switching Press the Unit button to switch the pressure units. The pressure units vary from different pressure ranges, not all units can be selected depending on the gauge model.
  • Page 31 1. In main display, long press Unit key to switch the display items in the sub display area, and switch to the Tare setting item, as shown in Figure 8. The Tare icon does not flash under the Tare setting item, and the sub display shows OFF to indicate that the Tare function is turned off.

  • Page 32: Pressure Peak Value

    Figure 9 Tare is enabled 2.5 Pressure Peak Value The device automatically records the maximum and minimum pressure values that occur during the pressure measurement. The recorded peak value can be viewed in the pressure peak function by long pressing the peak button on the main display, as shown in Figure 10, the maximum pressure value is displayed in the main display area, short press peak again to view the minimum pressure value, as shown in Figure 11.
  • Page 33 Figure 10Maximum pressure value Figure 11 Minimum pressure value...

  • Page 34: Pressure Leak Test

    Table 5Pressure peaks setting Subject Introductions Maximum Value Minimum Value Zero Reset data 2.6 Pressure Leak Test 1. In the main display, long press the Unit button to switch theitems in sub display area, and switch to △ P. At this moment, the sub display area displays the leak test time, and the main display area displays the pressure value.
  • Page 35 2. After the pressure leak test is completed, as shown in Figure 13, the P logo appears in sub display area, and the pressure difference value is displayed in the main display area. When it ends, short press the Down or Right button to switch and display the initial pressure value P1 as shown in Figure 14, the end pressure value P2 as shown in Figure 15, and the pressure difference value is P.
  • Page 36 Figure 14Leak test initial pressure Figure 15Leak test end pressure...

  • Page 37: Data Log

    2.7 Data Log 1. Short press the Log button in the main display to enter the date log menu. The menu includes start and stop data logging, occupied storage capacity, interval,and clear data. Short press the Right button or Down button to switch between setting items.

  • Page 38: Occupiedstorage Capacity

    be locked directly, or if you do not operate the button for 1 minute, it will automatically return to the main display and lock the screen. As shown in Figure 16, the sub display area displays the number of records. When the number exceeds the display range of the sub display area, only the low digits of the record numbers are displayed.

  • Page 39: Numeric Keyboarddisplay And Editing

    numbers, and short press Right button to move to next digit. Short press Enter button to confirm the password. Short press Return button to go to previous menu. As shown in Figure 17. Figure 17Password display and edit 2.10 Numeric KeyboardDisplay and Editing The pressure gauge provides a numeric keyboard, as shown in Figure 18.

  • Page 40: Cycle Selection Keyboard Display And Editing

    Figure 18Numeric keyboard 2.11 Cycle Selection Keyboard Display and Editing The system provides a cycle selection keyboard to set parameters, as shownin Figure 19. The main display area will flash to indicate that it is being edited, for example the baud rate is now set to 9600, and the baud rate can be switched by pressing the Down and Right buttons.
  • Page 41 Figure 19Cycle selection keyboard...

  • Page 42: System Settings

    System Settings In the main display, long press the Settings button to enter the system setting, and short press the Settings button in the setting interface to return. In the system settings, short press the Down button to cycle through the various menus. If a menu contains submenus, short press the Right button to switch each submenu.

  • Page 43: Resolution

    10━1(10readings /1sec) 3━1L(3readings /1sec) 2━1 L(2readings /1sec) 1━1 L(1reading /1sec) 1━2 L(1reading /2sec) 1━3 L(1reading /3sec) 1━4 L(1reading /4sec) 1━5 L(1reading /5sec) 1━6 L(1reading /6sec) 1━7 L(1reading/7sec) 1━8 L(1reading /8sec) 1━9 L(1reading /9sec) 1━10 L(1reading /10sec) With a L indicates that the gauge is in low power consumption mode, and without L indicates that the gauge is in normal working mode.

  • Page 44: Temperature Unit Settings

    Subject Effective values Description Available for first-order filtering mode, default is 0.05, can 0.05 ～ 1 First-order coefficient be changed by commands Number of filtered 3 ～ 10 Number of samples for average filtering samples 0 ～ 4 (The Extreme value pairs number Extreme value pairs will Extreme value pairs will be removed in average filtering, be removed...

  • Page 45: Date And Time Settings

    Figure 20Select inH O(20℃) 3.3 Date and Time Settings Including settings for time, date, year, and time format.Short press the Enter button to enter the setting items, and short press Right button to switch between items. The time format supports 12H and 24H. 3.4 Pressure Calibration The title bar displays 4-1, and the main display area displays P-CAL.

  • Page 46: Calibration Settings

    3.4.1Calibration Settings 1. Calibration status: When calibration has been performed, CAL-1 will be displayed in the main display area, and when it is not calibrated, CAL-0 will be displayed. Short press Enter button to go to calibration process. 2. Cancel calibration: The main display shows FAC, short press Enter button to cancel calibration. 3.
  • Page 47 1. Display the lower limit calibration point, as shown in Figure 21, the identifier area displays Min to indicate the lower limit of calibration. The main display area displays the calibration point being edited, and the focus position will flash. Short press Right button to move the focus position, short press Down button to adjust the value, short press Enter button to confirm the current calibration point and go to lower limit display.
  • Page 48 2. Start lower limit calibration, as shown in Figure 22. The main display shows the measured pressure value, after the pressure stabilized, short press Enter button to confirm. Figure 22 Lower limit calibration...
  • Page 49 3. Display the upper limit calibration point, as shown in Figure 23, the identifier area displays Max to indicate the upper limit of calibration. The main display area displays the pressure reference value being edited. If the user wants to change calibration point, just change it directly.
  • Page 50 4. Start upper limit calibration, as shown in Figure 24. After the pressure stabilized, short press Enter button to confirm. Figure 24 Upper limit calibration...

  • Page 51: Barometriccalibration

    5. Now the calibration is completed, return to calibration status menu and it will show CAL-1, which indicates the calibration takes effect. As shown in Figure 25. Figure 25 Calibration status menu 3.5 BarometricCalibration The title bar displays 4-2, the main display area displays A-CAL, short press the Enterbutton to enter the password 1234, and then short press the Enterbuttonagain to enter barometric calibration, including calibration status, cancel calibration and offset settings.

  • Page 52: Barometric Calibration

    2. Cancel calibration: the main display area displays FAC, short press Enter button to cancel calibration. 3. Set the offset value: the main display area displays OFFSET, short press Enter button to edit barometric offset value. 3.5.2 Barometric Calibration Before the calibration, please open the battery cover of the gauge, and connect the pressure hose to the φ4 pressure port, as shown in Figure 26.

  • Page 53: System Settings

    In the calibration status, short press the Enterbutton to enter the barometric calibration process, at first it will display the lower limit calibration point, edit if necessary, short press Enter button to show the lower limit pressure value. After the measured value stabilized, short press Enter button to go to edit upper limit calibration.

  • Page 54: Bluetooth Auto-Off Settings

    3.7.2 Bluetooth Auto-off Settings The title bar displays 6-2, and the main display area displays bLEAUt. Short press Enterbutton to enable or disable the Bluetooth auto-off function. Once it is enabled, Bluetooth will automatically turn off after one hour of disconnection. 3.7.3 Serial Settings Address settings: The title bar displays 6-3, and the main display area displays Add.

  • Page 55: Connect To Additel Link App

    Connect to Additel Link App 4.1 Download Additel Link Additel Link is a mobile app available on Android and iOS system. It can connect to pressure gauges through Bluetooth, display real-time pressure reading and status, configure gauge parameters, switch pressure units, pressure zero, start/stop data log, download and view data from the gauge, calibrate pressure gauges and export CSV data for sharing.

  • Page 56: Connect To The Gauge

    4.3 Connect to the Gauge 4.3.1 Scan the Code Figure 28 Scan code for connection Figure 29 Manual search for connection 4.3.2 Manual Connection by Searching MAC Address...

  • Page 57: Copyright

    Copyright Additel owns all copyrights to this system and reserves all rights. Please respect the rights of our company.

  • Page 58: Appendix A：rs232 Module Db9 Pins Description

    Appendix A：RS232 Module DB9 Pins Description Figure 30 RS232 module DB9 female pins description Table 8RS232 module DB9 pins description Pins Description Reserved Reserved...
  • Page 59 Reserved Reserved Reserved Reserved...

  • Page 60: Appendix B: Special Notice For Adt681Aex Serial Connection

    Appendix B: Special Notice for ADT681AEx Serial Connection Any data download devices connected to the ADT681AEx shall be approved by SELV or Class 2 equipment against IEC 60950 or an equivalent IEC standard. The maximum voltage Um from the device shall not exceed 5.5 Vdc for USB port and 16 Vdc for RS232 port.
  • Page 61 Appendix C：ADT681AEx EX-Proof Description Conform below intrinsically safe certifications: IECEx & ATEx： Ex ia IIC T4 Ga Ta=-20℃to+50℃ IECEx SIR 21.0018X CSANe 21ATEx2078X CSA： Class I,Division 1,Groups A,B,C and D,T4 Class I,Zone 0,AEx ia IIC T4 Ga CSA 21CA 80045682X Ex ia IIC T4 Ga Ta=-20℃to+50℃...

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