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Additel 761A User Manual

Automated pressure calibrator
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Additel 761A Automated Pressure Calibrator
————User Manual
Please download the latest version from www.additel.com
[Version:1911V01]
Additel Corporation
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  • Page 1 Additel 761A Automated Pressure Calibrator ————User Manual Please download the latest version from www.additel.com [Version:1911V01] Additel Corporation...
  • Page 2 This user manual provides operating and safety instructions for the ADT761A Automated Pressure Calibrator. 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 manual without notice.

  • Page 3: Table Of Contents

    CONTENT Warnings ................................1 General safety ............................... 2 1. Introduction ..............................3 1.1 Overview ..............................3 1.2 Features ..............................3 1.3 Environmental Conditions ........................4 1.4 Power ..............................4 1.5 Specifications ............................4 2. Installation............................... 10 2.1 Features ..............................10 2.1.1 Basic structure ..........................
  • Page 4 2.3 Getting started ............................18 2.3.1 Power on ............................ 18 2.3.2 Setting the system date and time ....................18 2.3.3 Generating a pressure ........................ 18 2.3.4 Display and operation ........................ 19 3. Display and Operation ............................. 19 3.1 Home screen ............................19 3.1.1 Status bar ...........................
  • Page 5 3.5 External pressure module ........................48 3.6 Typical applications ..........................51 3.6.1 Pressure gauge ........................... 51 3.6.2 Pressure transmitter........................52 3.6.3 HART transmitter........................55 3.6.4 Pressure switch .......................... 56 3.6.5 I/P converter ..........................57 4.1 Control settings ............................. 59 4.2 Communication ............................. 61 4.2.1 Ethernet .............................
  • Page 6 4.4.4 Calibration of the barometric pressure module ................. 69 4.4.5 Pressure calibration ........................71 4.5 Services ..............................73 4.5.1 System upgrade .......................... 73 4.5.2 Maintenance ..........................74 4.5.3 Factory reset ..........................74 4.6 Personalization ............................75 4.6.1 Date and time ..........................75 4.6.2 Language ............................
  • Page 7 5. Documentation ............................... 80 5.1 Quick test .............................. 80 5.1.1 Pressure gauge ........................... 80 5.1.2 Pressure transmitter........................81 5.1.3 Pressure switch .......................... 82 5.1.4 Pressure sensor .......................... 83 5.1.5 I/P converter ..........................84 5.1.6 Signal isolator ..........................84 5.2 Task ................................ 85 5.2.1 Analog pressure gauge .......................
  • Page 8 5.3.4 Barometric altimeter ........................ 116 5.3.5 Pressure transmitter......................... 117 5.3.6 Pressure switch ........................117 5.4 Task (for barometric (BP) version) ....................... 117 5.4.1 Digital barometer ........................117 5.4.2 Calibration of the mercury barometer ..................120 5.4.3 Aneroid barometer ........................122 5.4.4 Barometric altimeter ........................
  • Page 9 8.4 Suction filter replacement ........................133 8.5 Replacement of the outlet filter and o-ring ..................134 8.6 Air filter replacement .......................... 136...
  • Page 10 Table Content 1.Introduction Table 1- 1 Specifications ..........................5 Table 1- 2 Electrical measurement specifications ..................7 Table 1- 3 General Index..........................9 2.Installation Table 2- 1 Electrical and signal port ......................13 Table 2- 2 Keypad functions ........................14 3.
  • Page 11 Table 4-3 Wireless network selection ......................63 Table 4-4Setup of wireless communication ....................63 Table 4-5 Bluetooth setup ........................... 64 Table 4-6 Date and time ..........................75 Table 4- 7 Sound setup ..........................76 Table 4-8 Cloud service setup ........................77 5.
  • Page 12 Table 5- 14 Task barometric altimeter....................... 125 Figure Content 2. Installation Figure 2- 1 Basic structure .......................... 10 Figure 2- 2 Electrical and signal ports ......................12 Figure 2- 3 Battery installation ........................16 Figure 2- 4 Gauge pressure connection ...................... 17 Figure 2- 5 Low pressure and differential pressure connection ..............
  • Page 13 Figure 3- 10 Current output of internal power supply ................46 Figure 3- 11 Connection of the external module ..................50 Figure 3- 12 Calibration of a pressure gauge ....................52 Figure 3- 13 Calibration of a 2-wire pressure transmitter ................53 Figure 3- 14 Calibration of a 3-wire pressure transmitter ................
  • Page 14 Figure 5- 10 Calibration of the barometric altimeter ................124 8. System maintenance Figure 8- 1 Disassembly of the suction filter ..................... 133 Figure 8- 2 Disassembly of air pressure/high-precision/barometric (BP) version pressure connector ..134 Figure 8- 3 Disassembly of differential pressure/micro-differential pressure connector ......135 Figure 8- 4 Disassembly and assembly of the air filter ................

  • Page 15: Warnings

    ◆ Do not apply pressures greater than the maximum working pressure. ◆ Not for use in flammable, high humidity, or dusty environments. ◆ Do not expose the battery to fire. ◆ Charge the battery only using the Additel adapter. Please follow proper recycling procedures when discarding the battery.

  • Page 16: General Safety

    ◆ Do not apply more than 30V between any two electrical jacks (except for voltage measurement jacks) ◆ Do not use any adapter other than Additel power adapter designed for the ADT761A. Charge the battery as soon as the battery symbol indicates.

  • Page 17: Introduction

    The ADT761A has many improvements over legacy Additel calibrator, such as increased pressure range to 1,000 psi (70 bar), removable internal pressure modules, optional precision modules, touch screen display, Wi-Fi, Bluetooth, and Ethernet communications, improved battery life and more ! 1.2 Features...

  • Page 18: Environmental Conditions

    ◆ Environment humidity:<90%RH, Non-condensation ◆ Barometric pressure: （86~106）KPa 1.4 Power ◆ Working time: 12 hours ◆ Charging mode: charging with the unit or independently ◆ Charging time: less than 5 hours 1.5 Specifications 761A-LLP 761A-D 761A-500 761A-1K 761A-APXR 761A-BP Model...
  • Page 19 [2] Specification based on gauge measurement. An additional 50 pa uncertainty will need to be included when measuring in absolute mode. Applicable only for use with the ADT761A-500 and ADT761A-1K ◆ Stability: 0.005%FS or 0.05 Pa, whichever is greater. 761A-BP: 0.02 hPa...
  • Page 20 ◆ Control response time: 20%FS pressure step, external 50cc volume access, high speed mode,<30 seconds; ◆ Media: Air ◆ Electrical measurement specification (environment temperature ℃± 5℃ one-year stability) Model Range Resolution Accuracy Note Specification Auto-ranging Impedance <10Ω mA Measure 0.1 µA 0.008%RD+0.004%FS ±25 or ±50 mA Impedance >1GΩ...

  • Page 21: General Specifications

    Live Mechanical If the switch is live, voltage Switch, NPN Switch, range will be (3-30) V PNP Switch Temperature Compensation 5° C to 35° C Temperature Coefficient Outside of 5° C to 35° C: <± 0.0005%RD+0.0001%FS/° C Misuse Protection Up to 30 V on any two sockets Table 1- 2 Electrical measurement specification ◆...
  • Page 22 USB, LAN, Bluetooth, Wi-Fi Communications Weight <17.52 lb (7.95 KG) Size 11.77 x 7.60 x 7.56 in (299 x 193 x 192 mm) Certification ISO17025 accredited certificate of calibration with NIST-traceable data 8 GB Data Storage Data Logging Up to 1,000,000 readings (data and time stamped) Up to 1000 tasks can be stored with data Task documentation Switch test, auto step, leak test...
  • Page 23 Vibration and Shock Vibration: 4g (20 to 2,000 Hz) Shock: 8g, 1 meter drop test Compliance Software Compatibility ACal, Additel Land and Additel Link for access via mobile application Warranty 1 year Table 1- 3 General Index ◆ Optional Software...

  • Page 24: Installation

    2. Installation 2.1 Features 2.1.1 Basic structure Figure 2- 1 Basic structure...
  • Page 25 Item Name ① Touchscreen ② PC Board ③ Connector Interface ④ On/Off ⑤ Shortcut keys ⑥ Function keys ⑦ Numeric Keypad ⑧ Strap connections ⑨ Atmosphere port ⑩ REF/FLT Port ⑪ Output Port ⑫ Vent Port ⑬ Lock ⑭ High Pressure Module ⑮...

  • Page 26: Electrical And Signal Ports

    ⑱ Power supply input ⑳ Label ㉑ Battery 2.1.2 Electrical and signal ports Figure 2- 2 Electrical and signal port Port Description ①② Current, Voltage, Switch measurement and HART, Profibus PA bus communication, Red is positive , Black is negative...

  • Page 27: Keypad

    ④⑤ Current, Voltage and power output, Red is positive , Black is negative ③ Jack A for connecting external pressure module ⑥ Jack B for connecting external pressure module DC27V Power adapter connection port Ethernet interface USB-A Flash drive connection USB-B Computer connection Table 2- 1 Electrical and signal port...

  • Page 28: Pressure Ports

    Shortcut Key: Snapshot Shortcut Key: Setup interface Shortcut Key: Return home Shortcut Key: Cancellation or Return function Shortcut Key: Fulfillment or confirmation function Navigate key: Up, down, left, right key Numeric Key Table 2- 2 Keypad functions 2.1.4 Pressure ports ◆Output port (OUTLEF): Pressure output port, connecting UUT.

  • Page 29: Initial Preparation

    ◆Reference port (REF): If calibrator measure and calibrate the gauge pressure instruments, please keep the REF If calibrator measure and calibrator the differential pressure instruments, REF port should port open. be connected with reference port of UUT for isolating airflow fluctuation to obtain stable pressure control.

  • Page 30: Pressure Connection

    Figure 2- 3 Battery installation 2.2.2 Pressure connection As shown in Figure 2-4, 2-5, under the situation of UUT is connected, the output port shall be sealed with the corresponding accessories.
  • Page 31 Figure 2- 4 Gauge pressure connection Figure 2- 5 Low pressure and differential pressure connection...

  • Page 32: View The Display

    2.2.3 View the display Push the front lock to the right and raise the touchscreen to the proper position 2.3 Getting started 2.3.1 Power on ◆ Press to turn the power on. ◆ The startup screen shows the manufacturer's logo. ◆...

  • Page 33: Display And Operation

    2.3.4 Display and operation Touch screen display makes operation easier, supports keypad operation, is convenient to operate and input values quickly. 3. Display and Operation 3.1 Home screen The home screen contains top status bar and module function areas, see figure 3-1 shows Figure 3- 1 home screen...

  • Page 34: Status Bar

    3.1.1 Status bar The status bar contains three parts, status information, module display/hidden operation and function navigation. 1. Status information display area ◆ Date and time: the time is system time ◆ Wi-Fi: Image indicates connection status and signal intensity. ◆...

  • Page 35: Module And Split Screen Display Area

    Pressure output module display/hidden: Icon will be displayed according to pressure control range. External pressure module A display/hidden: Icon will be displayed when pressure module A is connected. External pressure module B display/hidden: Icon will be displayed when pressure module B is connected. 3.

  • Page 36: Main Interface Keypad Operation

    ◆ Pressure output area: see section 3.2 pressure output. ◆ Electrical signal measuring area: see section 3.3 electrical signal measuring . ◆ Electrical signal output area: see section 3.4 electrical signal output. ◆ External pressure module A & B areas: see section 3.5 3.1.3 Main interface keypad operation ◆...
  • Page 37 2.Connection: See figure 3-2 and 3-3 as shown: Figure 3- 2 Differential pressure outlet...
  • Page 38 Figure 3- 3 Gauge pressure outlet 3. Input target value ◆ Pressure output area, touch screen to enter value or press button on the main interface , then press for confirmation. ◆ Press to increase or decrease the pressure target by the predetermined step size.
  • Page 39 ◆ The maximum negative pressure depends on current barometric pressure and the ability of the internal pump to generate this pressure. Meanwhile, the maximum pressure value depends on the control setting configuration (see section 4.1). If the target pressure exceeds the limit, then the calibrator will error and allow for another pressure to be entered.
  • Page 40 Cycle interval 0-3600 seconds Stop time between every cycle end and the next cycle start Dwell time 0-3600 seconds The time is pressure is stableat each step Step quantity 2-17 The number of steps Range will be based on the largest Range Setting auto step output range range internal module...

  • Page 41: Pressure Measurement

    3.2.2 Pressure measurement 1. Open internal pressure control item to switch pressure measurement: High or Low pressure range ◆ When changing internal module ranges the calibrator will open to atmosphere and then change ranges 2: Connection: figure 3-4 Figure 3- 4 Pressure Measurement 3: External pressurization ◆...

  • Page 42: Pressure Units

    3.2.3 Pressure units ◆ To change the pressure unit type for internal or external pressure modules, touch the pressure unit area on the touchscreen to select a the desired unit. 3.3 Electrical signal measurement The electrical signal measurement area provides such functions as current measurement, voltage measurement, switch testing, HART communication and Profibus PA communication.
  • Page 43 2. Connection: Connect the electric circuit as shown in Figures 3-5 and 3-6. Figure 3- 5 Current measurement...
  • Page 44 Figure 3- 6 Voltage measurement 3. Functional operation  Zeroing: Zero the measurement to eliminate drift. The allowable zeroing range is 1%FS.  Scaling: Converts the current/voltage signal into pressure signal for display. Item Effective value Description Transfer function Linear, square root, square Type of the conversion function of the scaled value...
  • Page 45 Input range 0%~100% Percentage of the input range of scaling Unit Depend on the electrical measurement Input unit of scaling selected Output range 0%~100% Percentage of the output range of scaling Unit User-editable field. Output unit of scaling Resolution 1, 0.1, 0.01, 0.001 Resolution of scaling Table 3- 2 Scaling parameters ...

  • Page 46: Switch Test

    Table3- 3 Filtering parameters  Resolution: Allows setting digit resolution.  Stability: Allows setting the stability of measurement data.  Loop power supply: Applicable only for the current measurement. Select enabling/disabling loop power supply. 3.3.2 Switch test 1. Similar to 3.3.1, open the electrical measurement options, click the range area on the screen, and select for switch test.

  • Page 47: Hart Communication

     The switch action values are recorded only when the output item is pressure.  Only a pair of action values is recorded, including the switch state (on to off/off to on) when triggered and pressure value.  Press and select "Reset", to clear the action values. ...
  • Page 48 calibrator will automatically connect to it and display its reading.  Press and select "Search", or click the HART measurement channel screen when no HART device is connected, to enter the HART power configuration interface. The calibrator provides the following connection mode: 1) For the connection mode with internal power supply and internal resistance, see Figure 3-8.
  • Page 49  After the power supply configuration is selected, you will enter the search interface. Start searching HART devices from the address "0". If successful the connection will be made and the HART device will be displayed. If no connection is established the calibrator will continue to search from the address "1"...
  • Page 50 again.  During a test with HART, the test will give a prompt if the HART is offline. 3. Process quantities  On the main interface, HART acts as an electrical measurement item. Press to enter process quantities. It can display the primary variable PV, output current A0, percentage, second variable, third variable and loop current at the same time, in which the units of second variable and third variable are determined by different devices.
  • Page 51 Item Parameter Description and effective value Device Label Support input of letters, numbers and symbols, no longer than 8 information characters. Device Date It can be modified to any date supported by the transmitter. information Information Support input of letters, numbers and symbols, no longer than 32 characters.
  • Page 52 Device version Read-only parameter Sensor Sensor S/N Read-only parameter Sensor unit Read-only parameter Lower sensor limit Read-only parameter Upper sensor limit Read-only parameter Minimum sensor Read-only parameter range Device output Primary It can be modified to any unit supported by the transmitter. During variable/range unit modification, the upper and lower limits are displayed through conversion.
  • Page 53 command Alarm state Read-only parameter Table 3- 4 Hart Parameters...
  • Page 54 2) Operation  Under the HART setup interface, you can press the key to view HART parameter values in real time; select a parameter that can be set, then press the key or click the screen to enter the set state. ...
  • Page 55 enter the zeroing interface.  Ensure that the present measured value adequately approaches zero; otherwise, it may cause zeroing to fail. 3) Current regulation  Adjust the proportion of current output of the transmitter, to make its AO value consistent with the actually output loop current.

  • Page 56: Profibus Pa Communication

    Wait for the pressure to stabilize and press the "Get" key to directly acquire the value, or manually enter the trim values. Note: Some transmitters may not allow selectable trim values, and automatically use the upper and lower range limits as trim values (the lower range limit corresponds to the lower-point trim value, and the upper range limit corresponds to the high-point trim value).
  • Page 57 to the user manual of transmitter. Note: During communication with a PA transmitter, the calibrator acts as a master station all the time. To avoid damaging the control system, you must separate the PA transmitter from the control system before connecting the calibrator to PA transmitter. 1.

  • Page 58: Electrical Output

    STATIC_PRESSURE_VALUE. 4. Transmitter operation (1) Setup  After clicking , a function menu will pop up. Select "Setup" in the function menu to enter the setup interface.  On the setup interface, you can access and set parameters in the Physical Block, Transducer Block and Function Block.
  • Page 59 hidden, the corresponding icon will be dim and when signals are being outputed, the output arrow on the icon will flicker. 1. Changing the range Click the range area on the left side of the measurement area to switch the output item. The calibrator supports 0~25mA, 0~16V and 16~30V power output.
  • Page 60 Figure 3- 10 Current output of internal power supply Item Effective value Description Stroke Round trip or one way Set the trip pattern of auto step. Cycle number 0-100 Set the cycle number of auto step. Step mode Step point, Set the mode of auto step.
  • Page 61 Step point 2-17 It can be set when the step mode is step point. number Range Not to exceed the Set the output range of automatic step. electrical output range. Step point list Editable when the step Display the set point list of automatic step. mode is custom;...

  • Page 62: External Pressure Module

    Item Effective value Description Range Do not exceed the electrical output Set the ramp output range. range Rise time 1~60 sec Ramp rise time Fall time 1~60 sec Ramp fall time 0% wait time 1~60 sec Wait time of the slope at the lower range value. 100% wait time 1~60 sec Wait time of the slope at the upper range value.
  • Page 63  If the measured value exceeds the measurable range of pressure module, it will display red "--------" and give an alarm. 3. Related operations of external pressure module  The pressure unit can be switched.  The atmospheric pressure version can switch the pressure type. ...
  • Page 64 Figure 3- 11 Connection of the external module  Select "Module Information", to view related information of the external pressure module.  Select "Resolution", and set the number of digits displayed to 4, 5 or 6.  Select "Filter". Then, you can select first-order filter or average filter as the filter type, and set related parameters.

  • Page 65: Typical Applications

    3.6 Typical applications 3.6.1 Pressure gauge 1. Prepare  Open the pressure output area of main operation interface: High-pressure or low-pressure range (depend on the range of calibrated instrument). 2. Connection  Connect the gauge as shown in Figure 3-12. ...

  • Page 66: Pressure Transmitter

    Figure 3- 12 Calibration of a pressure gauge 4. When the pressure of each calibration point becomes stable and is displayed in green, record the readings of each point. 3.6.2 Pressure transmitter The calibrator supports calibration of 2-wire, 3-wire and 4-wire pressure transmitters. 1.
  • Page 67  Switch the electrical measurement item of main operation interface to: Current or voltage measurement (depend on the output signal of the transmitter).  If the current-type 2-wire pressure transmitter needs loop power supply, you shall enable loop power supply in the current function menu. 2.
  • Page 68 Figure 3- 14 Calibration of a 3-wire pressure transmitter Figure 3- 15 Calibration of a 4-wire pressure transmitter 3. Manually set or use the step function (see Section 3.2.1 "Auto step and manual step of pressure output") to output the pressure of each calibration point.

  • Page 69: Hart Transmitter

    4. When the pressure of each calibration point becomes stable and is displayed in green, record the output value of the transmitter at each point, or use the snapshot feature. 3.6.3 HART transmitter 1. Prepare  Open the pressure output area of main operation interface: High-pressure or low-pressure range (depends on the range of the transmitter).

  • Page 70: Pressure Switch

    7. When the pressure of each calibration point becomes stable and is displayed in green, record the output value of the HART transmitter at each point, or use the snapshot feature 3.6.4 Pressure switch 1. Prepare  Open the pressure output area of main operation interface: High-pressure or low-pressure range (depends on the range of the switch) ...

  • Page 71: I/P Converter

    Figure 3- 16 Calibration of a pressure switch 4. Record the captured action value, or use snapshot storage (it can store a pair of action values at the same time). 3.6.5 I/P converter 1. Prepare  Switch the electrical output item of main operation interface to: Current output. ...
  • Page 72  Never use the calibrator for pressurization.  If the loop power supply of calibrator is used (the maximum load is 50 mA), please check the load capacity. 3. The I/P converter shall use the manual or automatic step function of electrical output (see Section 3.4 Automatic and manual step of electrical output), to successively output current of each calibration point.

  • Page 73: Control Settings

    4. System setup Under the main interface, press the key to enter the system setup interface. Or click on the screen, then a main menu will pop up. Select " Setup" on the main menu to enter the system setup interface.
  • Page 74 requirements and lasts for this duration. Its range is 1~60sec.  The pressure can be judged stable when the following two conditions are met during control: 1) (output pressure-set pressure)<=High-pressure/low-pressure range X pressure stability 2) Meet the condition 1) continuously and reach the pressure stabilization time. 5.

  • Page 75: Communication

     The temperature can be input within the range of (0~100) ° C. 8. Set point limit  Input a range smaller than the calibrator range as the upper and lower limits of pressure control, to ensure that the pressure output to the calibrated device does not exceed its range, thereby protecting the calibrated device.

  • Page 76: Wireless Communication

     When the DHCP mode is selected, the content of the table below will be allocated by the system automatically and are read-only items.  When the static mode is selected, the following table needs to be completed manually. Item Effective value Description I/P address...

  • Page 77: Bluetooth

    Gateway 0.0.0.0~255.255.255.255 Set the source gateway of calibrator host. Table 4-3 Wireless network selection  The port number and physical address are factory settings and cannot be modified.  When the static mode is selected in advanced options, the following table needs to be completed manually.

  • Page 78: Power Management

    Item Effective value Description Bluetooth state Enable/disable Enable or disable the Bluetooth function. Bluetooth Support Chinese characters, Set the Bluetooth name of calibrator. name letters, numbers or symbols. Physical Read-only address Table 4-5 Bluetooth setup 4.3 Power management 4.3.1 Display brightness The LCD brightness of calibrator can be modified by adjusting the brightness progress bar.
  • Page 79 brightness will be automatically set to the lowest value.  There are six settings to choose from: never, 30 sec, 1 min, 5 min, 15 min, and 30 min.  When the backlight is turned off, the first key-press will resume the backlight brightness, only after which subsequent key-pressing can take effect normally.

  • Page 80: System Calibration

    4.4 System calibration  The electrical measurement, electrical output and internal pressure modules of this calibrator all require periodic calibration.  This calibrator can also provide calibration for external pressure modules.  Before calibration, please carefully read the user manual, and perform operation after you have understood it.

  • Page 81: Calibration Of Electrical Measurement

    4.4.1 Calibration of electrical measurement 1. Set the calibration points  Several calibration points are provided by default according to the electrical measurement range of the device.  The calibration points can be modified. Please do not exceed the range given by the system. Except under special circumstances, modification is not suggested.

  • Page 82: Auto Tune

     Click on the right side of screen, to restore the factory data. 4.4.2 Auto tune As shown in Figure 4-1, Auto-tune can optimize controller parameters which have reduced after long-term use, so as to improve the pressure control stability and efficiency. Be sure to seal the pressure outlet with the provided hose and threaded plug.

  • Page 83: Calibration Of The Supply Pressure Module

    4.4.3 Calibration of the supply pressure module Calibrate the air intake and vent sensors inside the calibrator through an internal pressure control module, to rectify pressure drift caused by long-term operation of internal sensors. During execution, the pressure outlet shall be sealed. 4.4.4 Calibration of the barometric pressure module The calibrator provides single-point or two-point calibration for the internal barometric pressure module.
  • Page 84 Figure 4- 2 Calibrate an barometric pressure module 3) Perform calibration  Click to perform calibration.  According to the calibrator's prompt, make the standard instrument output pressure to the calibrator. Until the pressure becomes stable, click to perform calibration of the next point. ...

  • Page 85: Pressure Calibration

    4.4.5 Pressure calibration 1. Connection  Calibration of the internal pressure module can select internal pressurization or external pressurization mode.  When the internal pressurization mode is selected, please connect the pressure outlet of calibrator to the standard pressure instrument. ...
  • Page 86 special circumstances, modification is not suggested. 3. Perform calibration  Click to perform calibration.  Internal pressurization: According to the calibrator's prompt, make the calibrator output pressure to the standard instrument. Until the pressure becomes stable, click the measured value corresponding to this calibration point, and input the pressure reading of standard instrument.

  • Page 87: Services

    4.5 Services 4.5.1 System upgrade The calibrator provides a function of firmware upgrade. The upgrade operation includes two types: Local upgrade via a USB flash drive or remote upgrade  Local upgrade via a USB flash drive 1) Copy the upgrade file under the root directory of USB flash drive (ensure that the format of USB flash drive is FAT16 or FAT32).

  • Page 88: Maintenance

    4.5.2 Maintenance Access to the maintenance menu requires a password. The factory default password is: 123456  Maintenance is used to record the maintenance records, calibration records, and system board upgrade information of the device; and can also execute operation to clear system records. ...

  • Page 89: Personalization

    4.6 Personalization Personalization includes date and time, language, and sound settings. 4.6.1 Date and time Item Effective value Description Time 00:00~23:59 Set the time. Date 2000-1-1~2099-12-31 Set the date. Date Set the date format. format Year-month-day/month-day-year/day-month-year Separator -,/,. Set the date separator. Table 4-6 Date and time 4.6.2 Language The device provides multi-language interfaces.
  • Page 90 Item Effective value Description Volume Volume setting in the form of a Set the device volume. progress bar Touch sound On/off Enables/disables the souch for the touch screen display. Prompt sound On/off Enables/disables the prompt sound Over-range On/off Enables/disables the sound for over-range warning warning sound Snapshot On/off...

  • Page 91: Cloud Service

    4.7 Cloud service  The ACloud service supports Ethernet or Wi-Fi as methods for connecting Through Additel Link (providing several client modes such as mobile APP and PC), users can monitor the real-time operation status and data of the device anytime anywhere.

  • Page 92: Product Information

    4.9 Product information The product information includes calibrator host information, control board information, electrical measurement board information, electrical source board information, wireless module information, Profibus module information and HART communicator information. 4.9.1 Host information  Includes the model, serial number, host version, system firmware version, system hardware version, power-on times, operation time, etc.

  • Page 93: Electrical Source Board Information

    4.9.4 Electrical source board information  Includes the software version and hardware version of electrical source board, as well as the current and voltage parameters of electrical output.  The current and voltage parameters of electrical source include: Output range, accuracy and calibration date.

  • Page 94: Documentation

    5. Documentation 5.1 Quick test Click the main menu icon on the main interface, and then select the icon to enter the quick test function, and the calibrator displays the test type list. The quick test function doesn’t require test information to be entered in advance.

  • Page 95: Pressure Transmitter

    control.  Selecting manual execution requires the test point to be entered as the test progresses.  To stop this test, click the back button 3. Save the result  Click the save button to save the test result.  The following items will need to be entered: Name and serial number. Then click the check mark in the lower right corner to complete the savethe results.

  • Page 96: Pressure Switch

    test.  When selecting the manual execution, after the set point is stable, it is required to click the next point button to collect data and then input the new set point.  To stop this test, click the back button 3.

  • Page 97: Pressure Sensor

    display or table display.  Pressure switch action: When the internal pressure module is used as the standard, it will be automatically run the test. When the external pressure module is used as the standard manual pressure generation is required and the switch data will be recorded. ...

  • Page 98: I/P Converter

    Same as Section 5.1.2 Pressure transmitter. 5.1.5 I/P converter Select the “I/P converter” icon in the test type list to start the quick test. 1. Connection  Connect as shown in Figure 3-21. 2. Start the test Same as Section 5.1.2 Pressure transmitter. 3.

  • Page 99: Task

    5.2 Task The calibrator provides task functions which automate preset calibration routines, and collect, record, and save test data.  Enter the task interface: Click , and select the task in the menu .  Task list interface: Click on the right side of the screen to create a new task, click to delete tasks, and click to create a new folder.
  • Page 100 Item Effective value Description Name Letter, numeral, symbol Name of the pressure gauge Serial number Letter, numeral, symbol Serial number of the pressure gauge Model Letter, numeral, symbol Model of the pressure gauge Pressure type Gauge pressure, absolute Pressure type of the pressure gauge pressure, differential pressure...
  • Page 101 Note Letter, numeral, symbol Notes of the pressure gauge Table 5- 1 Task mode analog pressure gauge information 3. Task setting features Select the task in the task list to enter the instrument parameter interface, click the start icon to enter the execution information interface, and input the calibration information of the pressure gauge .
  • Page 102 number Input the number of readings to be taken when the readings Integer of 1 ~ 6 calibrator reaches the set point Integer of (1 ~ 600) Reading interval seconds Interval time between two readings Integer of (1 ~ 600) The waiting time before readings are taken and the Dwell time seconds...
  • Page 103 4. Task start Click to start the task process:  If connecting an external pressure module the correct standard should be selected  Click on the right to zero the pressure of the pressure module.  Click the task start button at the bottom right, and select the execution mode as automatic execution or manual execution.
  • Page 104 4) Repeat Step 2&3 until the entire pressure calibration process is completed;  After the entire calibration process is completed, the calibrator will automatically enter the report interface. 5. Task end The ADT761A provides calibration task data review, sorting and save functions. ...

  • Page 105: Digital Pressure Gauge

    Save as As found, as left and both Save pre-adjustment data or post-adjustment data, or both Table 5- 3 Task save  After saving, return to the task interface. 5.2.2 Digital pressure gauge 1. Connection Connect the calibrator and digital pressure gauge as shown in Figure 5-1; Figure 5- 1 Calibration of digital pressure It is recommended to connect the reference port (REF) when calibrating a differential pressure...

  • Page 106: Calibrate A Pressure Transmitter

    gauge. 2. New task Select the “digital pressure gauge” icon in the test type list. The other contents are the same as those in Section 5.2.1 New Task for Calibration of the analog pressure gauge. The accuracy setting for calibration of the digital pressure gauge is slightly different from the analog pressure gauge. The effective values of the accuracy for calibration of the digital pressure gauge are 0.025%, 0.05%, 0.1%, 0.16%, 0.25%, 0.4%, 1 %, 1.6%, 2.5%, 4%, and custom.
  • Page 107 Refer to Section 3.6.2 for connection. 2. New task Select the “pressure transmitter” icon in the test type list, and input the information of the calibrated pressure transmitter in turn: Item Effective value Description Name Letter, numeral, symbol Name of the pressure transmitter Serial number Letter, numeral, symbol Serial number of the pressure transmitter...
  • Page 108 variable (PV), percentage, process variable analog output (PVAO), and loop current PROFIBUS PA PROFIBUS output Depends on the pressure Range Range and unit of the pressure transmitter transmitter 0.05%, 0.1%, 0.2%, 0.5%, Accuracy 1%, 1.5%, 2%, 2.5%, and Accuracy of the pressure transmitter custom Owner Letter, numeral, symbol...

  • Page 109: Pressure Transducer

     The transmitter output is an analog signal and may need loop power supplied either internally or externally.  For HART devices click on the right to configure HART.  For PROFIBUS PA click on the right to configure PA. ...
  • Page 110 Figure 5- 2 Calibration of the pressure sensor Item Effective value Description Name Letter, numeral, symbol Name of the pressure sensor Serial number Letter, numeral, symbol Serial number of the pressure sensor Model Letter, numeral, symbol Model of the pressure sensor Gauge pressure, absolute Pressure type pressure, differential...
  • Page 111 (4~20)mA, (0~20)mA, (1~5)V, (0~10)V, Electric signal output range of current/voltage and Output (0~100)mV, (0~200)mV, pressure sensors and custom 0.01%, 0.02%, 0.05%, 0.1%, 0.2%, 0.5%, 1%, Accuracy Precision of the pressure sensor. 1.5%, 2.5%, 4%, and custom Linear, square root, Transferfunction Type of transfer function of the pressure sensor square Owner...

  • Page 112: Pressure Switch

     If connecting an external pressure module, it needs to be selected  If loop power is required, please set it before starting 5. For the contents of task end, refer to Section 5.2.1 task end for calibration of the analog pressure gauge.
  • Page 113 Precision of the pressure switch. The 0.5%, 1%, 1.5%, 2%, 2.5%, 4%, and numeral input in the custom option is Accuracy custom the precision level of the pressure switch Depends on the range of the pressure Set point Operating point of the pressure switch switch Action type Normally closed, normally open...

  • Page 114: I/P Converter

     Input the number of cycles. 4. Task start Click on the right side of the screen to zero the calibrator.  Click the execution button to start the task.  The upper left of the screen indicates the reading value of the current control pressure, and the upper right indicates the switch state.
  • Page 115  Connect the calibrator and the I/P converter as shown in Figure 3-21;  Never apply pressure out of the range of the calibrator.  If the loop power supply is enabled (with maximum load of 50mA), check the load capacity. 2.
  • Page 116 1.6%, 2.5%, 4%, and custom Transfer function Linear, square root Type of transfer function of the I/P converter Owner Letter, numeral, symbol Owner of the I/P converter Location Letter, numeral, symbol Locationof the I/P converter Notes Letter, numeral, symbol Notes of the I/P converter Table 5- 7 Task mode I/P converter information 3.

  • Page 117: Signal Isolator

    For the contents, refer to Section 5.2.1 Task end for calibration of the analog pressure gauge. 5.2.7 Signal isolator 1. Connection  Connect the calibrator and the signal isolator as shown in Figure 5-3; Figure 5- 3 Calibration of the signal isolator 2.
  • Page 118 Serial number Letter, numeral, symbol Serial number of the signal isolator Model Letter, numeral, symbol Model of the signal isolator 0.05%, 0.1%, 0.2%, 0.5%, Accuracy 1%, 1.5%, 2%, 2.5%, and custom Precision of the signal isolator. Input (0~25)mA, (0~16)V Input current range or voltage range of the signal isolator (-50~50)mA, (-30~30)V, Output current range or voltage range of the signal Output...

  • Page 119: Contact Pressure Gauge

    Note that it does not require manual input of the indicated value in this test.  Enable or disable loop power as required for the input.  For Enable or disable loop power as required for the output. 5. Task end For the contents, refer to Section 5.2.1 Task end for calibration of the analog pressure gauge.
  • Page 120 Item Effective value Description Name Letter, numeral, symbol Name of the contact pressure gauge Serial number Letter, numeral, symbol Serial number of the contact pressure gauge Model Letter, numeral, symbol Model of the contact pressure gauge Gauge pressure, absolute Pressure type pressure, differential Pressure type of the pressure sensor pressure...
  • Page 121 Notes Letter, numeral, symbol Notes of the contact pressure gauge Table 5- 9 Task mode contact pressure gauge information 3. Task setting Select the task in the task list to enter the instrument parameter interface, click the start icon to enter the execution information interface, and input the calibration process information of the contact pressure gauge in turn: Item...
  • Page 122 Integer of (1 ~ 600) Waiting time from a stable set point an the collection of Dwell time seconds all readings 1. Value: Digital display of pressure value 2. The number of scales: The pressure value is displayed by counting the number of scales to facilitate Input format Value, the number of scales the reading and comparison with the value indicated by...

  • Page 123: Valve Opening Gauge

    gauge.  When starting the electric contact test in the task setting, it will test the on/off value, and during the test, it will switch to the data collection interface to collect the switch on and off values.  Enable or disable loop power as required for the input. For Enable or disable loop power as required for the output.5.
  • Page 124 Figure 5- 5 Calibration of the valve opening gauge...
  • Page 125 Item Effective value Description Name Letter, numeral, symbol Name of the valve opening gauge Serial number Letter, numeral, symbol Serial number of the valve opening gauge Model Letter, numeral, symbol Model of the valve opening gauge Pressure type Gauge pressure, absolute Pressure type of the valve opening gauge pressure, differential pressure...
  • Page 126 custom Transfer function Linear, square root, square Type of transfer function of the valve opening gauge Owner Letter, numeral, symbol Owner of the valve opening gauge Location Letter, numeral, symbol Location of the valve opening gauge Notes Letter, numeral, symbol Notes of the valve opening gauge.
  • Page 127  Select “digital barometer” in the test type list to start the quick test of digital barometer. 2. Connection  When testing the general digital barometer, connect to the calibrator as shown in Figure 5-6.  When testing the VAISALA digital barometer, it needs to connect the calibrator and the communication interface as shown in Figure 5-7.

  • Page 128: Mercury Barometer

     The following are required fields: Name and serial number, click OK button to complete the save.  Click the back button to return to the test type list interface without saving.  IClick the reset button to rerun the test. 5.3.2 Mercury barometer 1.

  • Page 129: Aneroid Barometer

     To stop this test, press the back button 4. Save the result  Click the save button to save the test results.  Required fields are as follows: Name and serial number, then click OK button to save.  Click the back button to return to the test type list interface to exit without saving the results.

  • Page 130: Barometric Altimeter

     Selecting the manual execution requires manual input of each set point and readings.  To stop the test, press the back button 4. Save the result  Click the save button to save the test results.  Required fields are as follows: Name and serial number, then click OK button to save.

  • Page 131: Pressure Transmitter

     Click the next point button toskip the current set point and advance to the next set point.  Select manual execution requires to input a new set point after inputting the reading every time;  To stop the test, press the back button 4.
  • Page 132  If calibrating the VAISALA digital barometer, connect as shown in Figure 5-7. Figure 5- 6 Calibration of the general digital barometer Figure 5- 7 Calibration of the VAISALA digital barometer 2. New task Select the “digital barometer” in the test type list, and input the information of the barometer.
  • Page 133 Item Effective value Description Name Letter, numeral, symbol Name of the digital barometer Serial number Letter, numeral, symbol Serial number of digital barometer Model Letter, numeral, symbol Model of the digital barometer Calibration range Depends on the barometer The input upper and lower limits can’t be equal. Allowable error Allowable error of digital barometer 0.01~100%...

  • Page 134: Calibration Of The Mercury Barometer

    For the contents, refer to Section 5.2.1 Task end for calibration of the analog pressure gauge. 5.4.2 Calibration of the mercury barometer 1. Connection  Connect the calibrator and the calibrated mercury barometer as shown in Figure 5-8. 2. New task Select the “mercury barometer”...
  • Page 135 Item Effective value Description Name Letter, numeral, symbol Name of the general digital barometer Serial number Letter, numeral, symbol Serial number of the general digital barometer Model Letter, numeral, symbol Model of the general digital barometer The input upper and lower limits can’t be equal. Pay Depends on the pressure Calibration range attention to the range of the calibrated device, or...

  • Page 136: Aneroid Barometer

    4. Task start For the contents, refer to Section 5.2.1 Task start for calibration of the analog pressure gauge. 5. Task end For the contents, refer to Section 5.2.1 Task end for calibration of the analog pressure gauge. 5.4.3 Aneroid barometer 1.
  • Page 137 Figure 5- 9 Calibration of the aneroid barometer...

  • Page 138: Barometric Altimeter

    Figure 5- 10 Calibration of the barometric altimeter 5.4.4 Barometric altimeter 1. Connection  Connect the calibrator and the barometric altimeter as shown in Figure 5-10. 2. New task Select the “barometric altimeter” in the test type list, and input the information of the barometric altimeter Item Effective value...
  • Page 139 Serial number Letter, numeral, symbol Serial number of the barometric altimeter Model Letter, numeral, symbol Model of the barometric altimeter The input upper and lower limits can’t be equal. Pay attention to the range of the calibrated device, or Depends on the barometric Calibration range otherwise the tested device may be damaged, altimeter...

  • Page 140: Pressure Transmitter

    5.4.5 Pressure transmitter Same as Section 5.2.3, except that no pressure type selection is provided when creating a new task. 5.4.6 Pressure switch Same as Section 5.2.5, except that no pressure type selection is provided when creating a new task.

  • Page 141: Application

    6. Application 6.1 Unit conversion  Click the menu in the upper right corner on the main interface to select the application, and then enter the pressure unit converter.  Supports conversion between multiple pressure units. 6.2 Pressure leak test There are two pressurization ways of pressure leak detection: Calibrator pressurization: Select the internal high or low pressure range, and the calibrator will automatically run the test.
  • Page 142 automatically revert to the last setting.  Set point 1) There is no need to set this parameter when selecting the external pressure module. 2) It shall not exceed the selected measuring range. 3) Use this setting as the leak detection pressure point. 4) The pressure control set point value during the test.
  • Page 143 1) Control the pressure with the set pressure value as the target value. 2) After stabilization (the real-time pressure value turns green), stop the control and switch to the measurement mode, and count down the waiting time. 3) Record the pressure at the end of the waiting time as the starting pressure. 4) Start the test, count down the test time, and start to calculate the real-time leakage amount at the same time.

  • Page 144: Hart Communication

    the same time. the real-time leakage amount = the starting pressure - the real-time pressure. 5) Record the pressure at the end of the test time as the end pressure. 6) The entire leak detection process ends, and the final leakage amount = the starting pressure - the ending pressure.

  • Page 145: Hart Communicator Operation

    7.2 HART communicator operation  Read the parameters in HART which may be modified. The root directory options are 1-4. Depending on the HART device, the parameters that have been modified but not written in HART are highlighted in yellow in the list. Click to finish the operation of writing into the HART device.

  • Page 146: System Maintenance

    8. System maintenance 8.1 Device information view  On the system setting interface, select the product information. For details, see Section 4.9 Product information.  When the external pressure module is online, it can also view its related information. 8.2 Diagnostic information In case of any abnormalities of the calibratorthere will be a corresponding prompt message, and the message notification center icon on the top status bar will turn red and flash for alarm.
  • Page 147 measure mode and wait for 2 minutes.  The output pressure drop speed of the ADT761A-LLP or ADT761A-D calibrator shall be less than 0.002 кРа/seconds. and the ADT761A-500 and ADT761A-1K calibrator shall be less than 0.02 кРа/second.  It can also use the leak test applicaton of the calibrator (see Section 6.2). 8.4 Suction filter replacement ①...
  • Page 148 5. Maintenance cycle is 3~6 months/time dependent on use. Make sure that it is carried out after pressure inside the calibrator is completely drained and the device is shut down. 8.5 Replacement of the outlet filter and o-ring ③ After cleaning the filter element, press it back into the connector ①...
  • Page 149 ③ After cleaning the filter element, press it back into the connector ① Unscrew connector ② Push out the stainless steel filter element with a rod with diameter of less than 2.5mm ④ Replace the sealing ring Figure 8- 3 Disassembly of differential pressure connector Maintenance of the pressure connector position as shown in Figure 8-2 and Figure 8-3 above.
  • Page 150 Make sure that it is carried out after pressure inside the calibrator is completely drained and the device is shut down. 8.6 Air filter replacement ① Use a cross-head screwdriver to remove screws 1 and 2 ② Remove the cover ③...
  • Page 151 Make sure that it is carried out after pressure inside the calibrator is completely drained and the device is shut down.

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