Additel ADT681 User Manual
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Additel ADT681 User Manual

Digital pressure gauge
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DIGITAL PRESSURE GAUGE

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Summary of Contents for Additel ADT681

  • Page 1 DIGITAL PRESSURE GAUGE...
  • Page 2 ADT681 DIGITAL PRESSURE GAUGE User Manual Version 1705V19 Please download the latest version via www.additel.com ATEX Additel Corporation...

  • Page 3: Table Of Contents

    7.9.2 To log data…………………………………………………………………………………………………………………………21 7.9.3 Export data via Additel/Land software…………………………………………………………………………………………22 7.10 Factory Menu… … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … …26 8.
  • Page 4 8.2 Menu option …………………………………………………………………………………………………………………………… 8.3 Enter/cancel the calibration ………………………………………………………………………………………………………… To cancel the previous zeroing…………………………………………………………………………………………………… To set measure speed……………………………………………………………………………………………………………… To set filtering effectively…………………………………………………………………………………………………………… Set RS232 address…………………………………………………………………………………………………………………… 8. To set the RS232 baud rate………………………………………………………………………………………………………… 8. To set the automatic shutdown……………………………………………………………………………………………………… 8.10 To set the 4 or 5 digit display………………………………………………………………………………………………………31 8 11 Set custom unit factor ………………………………………………………………………………………………………………...

  • Page 5: Introduction

    1. Introduction The ADT681 is designed to offer a truly compact, cost effective digital pressure gauge to cover a wide range of applications. Along with its pressure measuring functions, it can be used as a calibration standard for calibration of standard pressure gauges, precision pressure gauges, industry pressure gauges, blood pressure meters and other pressure instruments.

  • Page 6: Specifications

    2. Specifications ◆Pressure ranges Gauge Pressure Accuracy(%FS) Pressure Range(psi) Pressure Range(bar) Media Burst Pressure 0.02 (0.05, 0.1, 0.2) 0.05 (0.1, 0.2) 0.16 0.02 (0.05, 0.1, 0.2) 0.35 0.02 (0.05, 0.1, 0.2) GP10 ( 2 ) G, L 0.02 (0.05, 0.1, 0.2) GP15 ( 2 ) G, L...
  • Page 7 Compound Pressure Accuracy(%FS) Pressure Range(psi) Pressure Range(bar) Media Burst Pressure 0.05 (0.1, 0.2) ± ± 0.16 0.02 (0.05, 0.1, 0.2) ± ± 0.35 0.02 (0.05, 0.1, 0.2) CP10 ± ± 0.02 (0.05, 0.1, 0.2) CP15 ± ± 0.02 (0.05, 0.1, 0.2) CP30 -15 to 30 -1 to 2...
  • Page 8 Differential pressure Accuracy(%FS) Pressure Range(inH O) Pressure Range(mbar) Media Burst Pressure ( 3 ) 0.05 ± ± . 100X ( 3 ) 0.05 ± ± . 100X 0.05 ±5 ±10 0.05 DP10 ±10 ±25 0.05 DP20 ±20 ±50 0.05 DP30 ±30 ±75 0.05...

  • Page 9: Instructions For Use

    ◆Temperature compensation 10~50 )℃ ( guaranteed accuracy ◆ Storage temperature: -20℃～70℃. ◆ Display: FSTN LCD, white backlight, 5-digit display. ◆ Battery life 600 consecutive hours when the measuring speed is 3 times/s, See Table 11-1 for details. If the battery voltage is too low, the 681 will automatically shut down prior to any accuracy degradation.
  • Page 10 Do not replace the battery in an area with hazardous explosives. Only use batteries that have passed Ex approval tests. The use of any other batteries will invalidate the Ex approval and may result in safety risks. Never open the instrument case, otherwise the Ex approval will be invalidated. It is strictly prohibited to connect RS232 communication cables in areas with explosives, Um=10VDC.

  • Page 11: Basic Structure

    WARNING: USE ONLY TYPE GP 1604A, or PANASONIC 6LR61, 9 V BATTERIES” and – “AVERTISSEMENT UTILISER UNIQUEMENT DES ACCUMULATEURS GP 1604A, or PANASONIC 6LR61, 9 V” N.B: the mark“ ”is only for ADT681 (intrinsically safe version). 4. Basic structure Model RS232 Serial Port Nameplate...

  • Page 12: Keypad Function

    5. Keypad function (1) Operating instruction Power ON/OFF Analogue dial: press quickly to select the % indication, swing (fluctuation) and low/high alarm. press and hold to enter the set menu for adjusting the low and high alarms. Peak value: press quickly to switch the indication among max Peak, min Peak and quit Peak. press and hold to enter the password menu or data logging menu (optional).

  • Page 13: Display Function

    (3) Menu operation introductions ① press and hold to enter the set menu or data logging menu(optional). ② (↑)and (↓) to switch the menu items. ③ Press ): to select menu function. ④ Press (ESC) to exit the menu. ⑤ The coefficient input includes integral part and decimal part, for example: input the 4.0146 ('+' '-')
  • Page 14 If the battery voltage is lower than 6.5V, the ADT681 will power off automatically. ◆Pressure unit area: Pressure unit area: Eleven common pressure units, and one customized pressure units (The ADT681 has 5 digit resolution based on the unit type selected at time of order) .

  • Page 15: Basic Operation

    ◆ Calibration icon: the mark or symbol of the operating calibration ◆ Pressure peak: the mark or symbol of the displaying peak value ◆ Higher limit: the mark or symbol of the high limit pressure ◆ Lower limit: the mark or symbol of the lower limit pressure ◆...

  • Page 16: Pressure Measure

    screen and pressure range screen (figure 7-1-3). Figure 7-1-1: Power up screen Figure 7-1-2: Version screen Figure 7-1-3: data logging screen(optional) Figure 7-1-4: Upper range screen Figure 7-1-5: Home Screen 7.2 Pressure measure When in any menu, pressing returns to the home screen (Figure 7-3).The home screen content includes: ·...

  • Page 17: Zeroing

    -2% ~ 2% FS. Figure 7-3-1 shows the zeroing sequence of gauge pressure. Figure 7-3-1: The zeroing process of the ADT681 (2) Absolute sensor types: ① When the ADT681 is connected to atmosphere, the user should know the current atmosphere pressure value (Pstandard). ② The actual pressure of ADT681 is (Pmeasure).
  • Page 18 ④ In the pressure measure menu, the measured pressure will change to (Pstandard) which is the same as the atmosphere pressure value. Now the zeroing process is finished. Figure 7-3-2 shows the zeroing sequence for absolute pressure of the ADT681. 1.Contact with atmosphere.

  • Page 19: Pressure Units

    Note: in order to avoid readings that are too long or too short for the units parameters, be sure to select pressure units that are compatible with the ADT681 Figure 7-4 shows the methods to switch the different pressure units.

  • Page 20: Peak Detection

    7.5 Peak detection (1) The ADT681 will automatically record the max/min pressure values. Press to view them. -------Shows max pressure. -------Shows min pressure. Press and the gauge will ret rn to the measure menu The max/min pressure values will be automatically recorded (2) To reset the peak values.

  • Page 21: Backlight

    7.6 Backlight Press to power on/off the backlight. The selectable times are ON, 20 seconds and 30 seconds. The selection method is as follows: (1) Press and hold to display and select among the following options. Figure 7-6: Backlight auto power off options (2) Press and hold to select auto power off time setting ON 20 30 then release when the desired option appears.

  • Page 22: Percent Pressure

    Scale bar graph: 0%~100%, the minimum scale is 2%. ◆ Scale midpoint: point to 50%. Figure 7-7-1: Pressure % indication Example: for the ADT681 with (0~100) kPa, if the current pressure value is 50kPa, the % indicator is 50%, as figure 7-7-1. 7.7.2 Pressure swing ◆...

  • Page 23: Setting Alarm Limit

    ◆ Scale bar graph: (0%~100%) FS, minimum scale is 2%FS. ◆ Scale midpoint: point to 50%. Example: for the ADT681 (pressure range 0-100kPa) ,if the current pressure reading is 50.00kPa (50%FS) and higher limit is 80kPa (80%FS) and the lower limit is 40kPa (40%FS), the analogue dial...

  • Page 24: Temperature Measure

    The sequence is: High limit, Low limit, Quit. (4) The ADT681 automatically checks the validity of the input data. If there is a problem or if the data input is not valid, the ADT681 will not accept the change. Figure 7-7-4 shows the setting menu.

  • Page 25: Data Logging (Optional)

    7.9 Data logging (optional) 7.9.1 Save menu Press and hold the button to enter into the data logging menu. The screen shows (data logging) and (set menu), please select the : 1. Display the date and time. 2. Set up the date and time. : Memory capacity status.

  • Page 26: Export Data Via Additel/Land Software

    ⑥ The data can be sent by Additel/Land software. Remark: While the Additel 681 is sending data, it will stop logging. ⑦ Press “del” in the data logging menu to delete all data, the password is 211. 7.9.3 Export data via Additel/Land software.
  • Page 27 “ (2) Click the button Scan”, you will see the picture below. 7-9-3-2...
  • Page 28 (3) After clicking the Additel 681, the next window will appear as below. 7-9-3-3...
  • Page 29 (4) Click the “Refresh” button to send data from Additel 681 to software. 7-9-3-4...

  • Page 30: Factory Menu

    ( ) 6 Press the “delete” button to delete all data 7.10 Factory Menu 681 without data logging: Note: Please consult Additel Corporation before making any adjustments to the factory menu. (1) Press and hold the button to enter into the set menu (password).
  • Page 31 681 with data logging: Press and hold the button to enter into the data logging menu. The screen shows (data logging) and (set menu), please select the , with password “724”. Shown in Figure 7-10-2 Figure 10 2 - ： Factory Menu in 681 with data logging (1) Firmware version number, can not be changed (2) Zero function, settable as non-absolute/absolute sensor...

  • Page 32: Menu Operation

    (1) Press and hold the button enter into the set menu (password), as shown in Figure 8-1-1. (2) Input password“211”. Remark: For Additel 681 with data logging, Press and hold the button to enter into the data logging menu. The screen shows (data logging, see more details in 7.9) and...

  • Page 33: Menu Option

    Figure 8-2-1: 12 menu options Details as below: To enter into the calibration menu. The ADT681 has been calibrated already. The ADT681 hasn't been calibrated yet. If this step is used, all pressure calibration will be cancelled. Be careful when using this operation.

  • Page 34: Enter/Cancel The Calibration

    (11) set tare function. (12) set single-point calibration. 8.3 Enter/cancel the calibration enters the calibration. canels the calibration. 8.4 To cancel the previous zeroing cancels the previous zeroing operation. 8.5 To set measure speed Select to enter the selection menu of the measure speed as follows: CON(10 times/1 sec) 1 3 (3 times/1 sec) 1 2 (2 times/1 sec)

  • Page 35: To Set The Automatic Shutdown

    (2) Set one non-zero pressure point, records the display pressure readings. (3) Calculate the adjustment ratio accordingly and set it in the Additel 681. Example: Set 1.65kPa standard pressure, but the display pressure reading is 1.5kPa. In order to correct the display...

  • Page 36: Calibration Function

    It is recommended that the ADT681 be calibrated once per year by a trained professional. For best results before calibration the ADT681 should be exercised to full scale three times If there is an error during the process then use...
  • Page 37 Example: the ADT681 with (0~100) kPa (1) Select and press to display the calibration value of lower limit, as the figure 9-2-1. If the user needs to modify the pressure value of the low limit point then input the desired value. Otherwise, press to confirm.

  • Page 38: Cancel Calibration

    Select and push to cancel the calibration then the screen will display Power supply description The ADT681 has two power sources: a 9V alkaline battery(ANSI/NEDA 1604A or IEC 6LR61) or special DC9V adapter. (1) Standard type: ( ) 1 ( ) 2...
  • Page 39 (2) Intrinsically safe type: ( ) 2 ( ) 1 Figure 10-2-1： Battery installation diagram...

  • Page 40: Measure Speed And Working Time

    Warning: ◆ Replace the battery if the ADT681 powers off automatically. Remove the ADT681 from the Ex-hazardous area before opening the battery door Use only the battery types listed in the Approved Battery Table. ◆ When replacing the battery, make sure positive and negative are in the right direction.

  • Page 41: Accessories

    The product specifications and other information contained this manual are subject to change without notice. Additel Corporation has made a concerted effort to provide complete and current information for the proper use of the equipment. If there are questions, contact...

  • Page 42: Appendix I: Communication Protocols

    ： ： ： ： ： ： A 1 byte, the communication address of ADT681 ： X 1 byte, only for W (write) or R (read) ： K 1 byte, M (for measure operation), F (for file operation), O (other operation) ：...
  • Page 43 1007: The parameter settings are irregular 1016: The current data is not the range of zeroing 1017: The number of parameters entered does not meet the parameter settings 1018: This instruction is non existent 1019: The length of the operation code is too long 1020: The r/w of instruction is wrong 1024: The setting of pressure unit is irregular 1025: The serial port's address code is too long...

  • Page 44: Instructions Details

    2. Instructions details Instructions Function Introduction Right return value Knnnn Read the software version number A: F: OVER: version No.+Eos OVER Read the instrument model number OTYPE A: F: OTYPE: instrument model No.+Eos Read the serial number of the OCODE A: F: OCODE: serial number+Eos instrument Read the manufacture date of the...
  • Page 45 Instructions Right return value Function Introduction Knnnn C3 C4 Eos 0(stop) 0x0 Set data logging start or stop W OFRUN A:F: OFRUN:OK+Eos 1(start) Set recording interval (1s~99999s) OFTIM interval A:F: OFTIM:OK+Eos 0x0 Read the operating status of data logging A:F: OFSTA:state:interval:space:total records+Eos OFSTA 0x0 Delete all data records OFDEL...

  • Page 46: Pressure Units Abbreviations

    3.Pressure units abbreviations Shortening INH2O INHG MBAR Standard kgf/cm inH O mmH O inHg mmHg mbar customized units 4.Pressure units code The data read by OUINF algori thms binary scale ), check the selected pressure units after the hexadecimal date is changed. 2 bytes.
  • Page 47 Additel Corporation 2900 Saturn Street #B Brea, CA 92821, USA Phone: 714-998-6899 Email: service @additel.com website: www.additel.com...

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