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685/685Ex
Advanced Digital Pressure Gauge
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ADT685/685EX Advanced Digital Pressure Gauge
-------User Manual
[Version：2103V01]
Additel Corporation
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STATEMENT
This user manual provides operating and safety instructions for the ADT685/685Ex Advanced
Digital Pressure Gauge. 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.
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CONTENT
1. Introduction ................................................................................................................................................................... 3
1.1 General Introduction .................................................................................................................................................. 3
1.2 Pressure Ranges and Accuracy ................................................................................................................................. 4
1.3 Technical Specifications ............................................................................................................................................. 9
1.4 Features ................................................................................................................................................................... 10
1.5 Basic Structure ........................................................................................................................................................ 11
2. Operation ................................................................................................ ..................................................................... 13
2.1 Main Display ............................................................................................................................................................ 13
2.2 Main Operation Interface ......................................................................................................................................... 14
2.3 Buttons ..................................................................................................................................................................... 17
2.4 Pressure Measurement ............................................................................................................................................ 17
2.4.1 Pressure Percentage Indication......................................................................................................................... 17
2.4.2 Pressure Zeroing ............................................................................................................................................... 18
2.4.3 Pressure Unit Switching .................................................................................................................................... 19
2.4.4 Pressure Type Switching ................................................................................................................................... 19
2.4.5 Pressure Tare .................................................................................................................................................... 19
2.4.6 Alarm ................................................................................................................................................................. 19
2.5 Pressure Peak Recording ........................................................................................................................................ 19
2.6 Pressure Leak Test .................................................................................................................................................. 21
2.7 Data Logging ........................................................................................................................................................... 24
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2.8 Backlight ON/OFF .................................................................................................................................................... 26
2.9 Screen Lock and Unlock .......................................................................................................................................... 26
2.10 Date and Time ....................................................................................................................................................... 27
2.11 Password Display and Editing ................................................................ ................................................................ 29
2.12 Number Editing ...................................................................................................................................................... 30
2.13 Cycle Selection Keyboard Display and Editing ...................................................................................................... 31
3. System Settings .......................................................................................................................................................... 32
3.1 Communications ...................................................................................................................................................... 33
3.1.1 Bluetooth ........................................................................................................................................................... 33
3.1.2 RS232/RS485.................................................................................................................................................... 34
3.1.3 4-20mA .............................................................................................................................................................. 35
3.1.4 SWITCH Settings .............................................................................................................................................. 36
3.2 Auto Power Off Settings ........................................................................................................................................... 37
3.3 Filter Settings ........................................................................................................................................................... 37
3.4 Pressure Reading Display Rate ............................................................................................................................... 38
3.5 Calibration ................................................................................................................................................................ 39
3.5.1 Calibration Interface .......................................................................................................................................... 39
3.5.2 Pressure Calibration .......................................................................................................................................... 40
3.5.3 Barometric Calibration ....................................................................................................................................... 42
3.5.4 (4~20) mA Calibration (only available when using (4~20) mA module) ............................................................. 43
3.6 OP List Settings ....................................................................................................................................................... 44
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3.6.1 Version Information ............................................................................................................................................ 44
3.6.2 Resolution Settings ............................................................................................................................................ 44
3.6.3 Auto-Backlight Time Settings ................................................................ ............................................................. 44
3.6.4 Barometric Pressure and Temperature Display ................................................................................................. 44
3.6.5 Overpressure Record Information ..................................................................................................................... 45
3.6.6 Touch Sound Settings ................................ ................................ ........................................................................ 45
3.6.7 Data Record Storage formatting Operation ....................................................................................................... 45
3.6.8 Restore to Factory Settings ............................................................................................................................... 45
3.7 Malunction Information ............................................................................................................................................. 45
3.8 Operation Error Codes ............................................................................................................................................. 47
4. Copyright ..................................................................................................................................................................... 48
Appendix A：RS232 module DB9 Pins Description ..................................................................................................... 49
Appendix B：RS485 module DB9 Pins Description ..................................................................................................... 50
Appendix C：SWITCH Module Pins Description .......................................................................................................... 52
Appendix D：2 Wire (4~20) mA Module Pins Description ........................................................................................... 53
Appendix E: Special Notice for ADT685Ex Cable ......................................................................................................... 54
Appendix F：ADT685Ex EX-Proof Description ............................................................................................................ 55
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Safety Instructions
Warning: The situation that poses a threat to user safety.
Attention: The condition that may cause damage to the gauges or affect the calibration result.
Warning:
To prevent the user from injury, please follow this user manual for use.
To prevent possible fire, electric shock or personal injury, please do as follows:
1. General:
The pressure medium should be confirmed before use. Please adhere to the following instructions:
◆ Please read the user manual before using the product;
◆ Before using the product, please check the appearance of the product to ensure there is no damage;
◆ Please refer to the operation steps in the manual when using the product;
◆ 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 dust environment.
2. Electrical:
◆ Before using the product, please make sure that the power supply is connected correctly, and the installation is
done properly.
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Attention：
To prevent injury, please obey the instruction manual for use
To prevent possible damage, please do as follows:
◆ Do not use the instrument in a high vibration environment;
◆ If the gauge is abnormal, please stop using it and contact with Additel.
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1. Introduction
1.1 General Introduction
ADT685 /ADT685EX Advanced Digital Pressure Gauge is the latest generation digital pressure gauges introduced by
Additel Corporation. It is mainly used to calibrate precision pressure gauges, general pressure gauges,
sphygmomanometers or other pressure instruments and it can also be widely used for precision pressure measurement.
The power consumption of ADT685/ADT685EX is very low, which is suitable for long-term continuous work (Up to
20,000 hours under ultra-low power consumption mode). The ADT685/ADT685EX also has excellent electromagnetic
compatibility characteristics, it has obtained the CE certification of the most authoritative organization and can be used in
various complex electromagnetic environments.
Contact us:
Additel Corporation
Tel: +1-714-998-6899
www.additel.com
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1.2 Pressure Ranges and Accuracy
Table 1 Gauge Pressure
[1]
（Sealed gauge pressure for above 1,000 psi）
P/N
Pressure Range
Media
[2]
Accuracy
Burst Pressure
(psi)
(bar)
%FS
%RD
V15
-15
-1.0
G
0.02 (0.05)
N/A
3X
GP2 2 0.16
G,L
0.05
N/A
3X
GP5 5 0.35
G,L
0.05
0.1
3X
GP10
10
0.7
G,L
[3]
0.02 (0.05)
0.1
3X
GP15
15
1.0
G,L
[3]
0.02 (0.05)
0.1
3X
GP30
30
2.0
G,L
[3]
0.02 (0.05)
0.1
3X
GP50
50
3.5
G,L
0.02 (0.05)
0.1
3X
GP100
100
7.0
G,L
0.02 (0.05)
0.1
3X
GP150
150
10
G,L
0.02 (0.05)
0.1
3X
GP300
300
20
G,L
0.02 (0.05)
0.1
3X
GP500
500
35
G,L
0.02 (0.05)
0.1
3X
GP600
600
40
G,L
0.02 (0.05)
0.1
3X
GP1K
1,000
70
G,L
0.02 (0.05)
0.1
3X
GP1.5K
1,500
100
G,L
0.02 (0.05)
0.1
3X
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GP2K
2,000
140
G,L
0.02 (0.05)
0.1
3X
GP3K
3,000
200
G,L
0.02 (0.05)
0.1
3X
GP5K
5,000
350
G,L
0.02 (0.05)
0.1
3X
GP10K
10,000
700
G,L
0.02 (0.05)
0.1
3X
GP15K
15,000
1,000
G,L
0.05 (0.1)
0.1
1.5X
GP20K
20,000
1,400
G,L
0.05 (0.1)
N/A
1.5X
GP25K
25,000
1,600
G,L
0.05 (0.1)
N/A
1.5X
GP30K
30,000
2,000
G,L
0.05 (0.1)
N/A
1.5X
GP36K
36,000
2,500
G,L
0.05 (0.1)
N/A
1.5X
GP40K
40,000
2,800
G,L
0.05 (0.1)
N/A
1.35X
GP50K
50,000
3,500
G,L
0.1 (0.2)
N/A
1.2X
GP60K
60,000
4,200
G,L
0.1 (0.2)
N/A
11X
[1] Sealed gauge pressure for above 1,000 psi.
[2] G=Gas, L=Liquid.
[3] 0.02% FS for gas media only.
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Table 2 Differential Pressure
P/N
Pressure Range
Media
Accuracy
(%FS)
[1]
Burst Pressure
Static
Pressure
Range
(inH2O)
(mbar)
DP1
±1
±2.5
G
0.05
[2]
100X
±10 psi
DP2
±2
±5.0
G
0.05
[2]
100X
±10 psi
DP5
±5
±10 G 0.05
[2]
50X
±10 psi
DP10
±10
±25 G 0.05
[2]
20X
±10 psi
DP20
±20
±50 G 0.05
20X
±10 psi
DP30
±30
±75 G 0.05
20X
±10 psi
DP50
±50
±125 G 0.05
3X
±10 psi
DP100
±100
±250 G 0.02
3X
±15 psi
DP150
±150
±350 G 0.02
3X
50 psi
DP300
±300
±700 G 0.02
3X
50 psi
[1] FS specification applies to the span of the range. Accuracy includes one year stability.
[2] 0.05%FS accuracy (incl 6 months stability). One year accuracy is 0.05%FS calibration accuracy combined with 0.05%FS one year
stability.
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Table 3 Compound Pressure
P/N
Pressure Range
Media
[1]
Accuracy
Burst Pressure
(psi)
(bar)
%FS
[2]
%RD
CP2
±2
±0.16
G
0.05
N/A
3X
CP5
±5
±0.35
G
0.02 (0.05)
0.1
3X
CP10
±10
±0.7
G
0.02 (0.05)
0.1
3X
CP15
±15
±1
G
0.02 (0.05)
0.1
3X
CP30
-15 to 30
-1 to 2
G
0.02 (0.05)
0.1
3X
CP100
-15 to 100
-1 to 7
G,L
0.02 (0.05)
0.1
3X
CP300
-15 to 300
-1 to 20
G,L
0.02 (0.05)
0.1
3X
CP500
-15 to 500
-1 to 35
G,L
0.02 (0.05)
0.1
3X
CP600
-15 to 600
-1 to 40
G,L
0.02 (0.05)
0.1
3X
CP1K
-15 to 1000
-1 to 70
G,L
0.02 (0.05)
0.1
3X
[1] G=Gas, L=Liquid.
[2] FS specification applies to the span of the range.
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Table 4 Absolute Pressure
P/N
Pressure Range
Media
[1]
Accuracy (%FS)
Burst Pressure
(psi)
(bar)
AP5 5 0.35
G,L
0.1
3X
AP10
10
0.7
G,L
0.1
3X
AP15
15
1.0
G,L
0.1
3X
AP30
30
2.0
G,L
0.1
3X
AP50
50
3.5
G,L
0.1
3X
AP100
100
7.0
G,L
0.05(0.1)
3X
AP300
300
20
G,L
0.05(0.1)
3X
AP500
500
35
G,L
0.05(0.1)
3X
AP1K
1000
70
G,L
0.05(0.1)
3X
AP3K
3000
200
G,L
0.05(0.1)
3X
AP5K
5000
350
G,L
0.05(0.1)
3X
[1] G=Gas, L=Liquid.
*Note
◆ Temperature Compensation:(-10～50)℃, 1 year accuracy;
◆ Abs pressure, 0.05% accuracy, the time to guarantee this accuracy is 180days;
◆ The medium requires non-corrosive.
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1.3 Technical Specifications
Table 5 Technical Specifications
Model
ADT685
Digital Pressure Gauge
ADT685Ex
Intrinsically Safe Digital Pressure Gauge
Intrinsic Safety
&
European Compliance
CE
CE marked
ATEX certified intrinsically safe
II 1G EX ia IIC T4 Ga
Protection Level
IP67
Case Material
304 SS
Wetted Parts Material
316 SS
[1]
Dimensions
4.65" (118mm) width X 1.77" (42mm) depth X 7.01" (178mm) height
Weight
1.50 lbs. (0.68 kg)
Display
Touch screen (3.4'' FSTN segment capacitive) - 5 1/2 full digits
Button
4 Function buttons, 1 Power ON/OFF button
Data Logging
(Included with -DL models)
Data storage: 10,000,000 records (Time+Pressure)
Communication
USB Type-C and Bluetooth included, RS-232 or RS-485
[2]
(optional)
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Power
[3]
External power: 110/220 V adapter (5 VDC)
(optional, excl ADT685Ex)
Battery: Three AA alkaline batteries (included)
Battery life: 1500 hours typical
Approved Batteries for ADT685Ex including:
Energizer E91; Maxwell LR6;
Panasonic Powerline LR6A; Rayovac 815.
Environmental
Compensated Temperature: 14°F to 122°F (-10°C to 50°C)
Operating Temperature: 14°F to 122°F (-10°C to 50°C)
Storage Temperature: -4°F to 158°F (-20°C to 70°C)
Humidity: 0 - 95%, non-condensing
Barometric Accuracy
(Built-in barometer)
Range: (60~110) kPa.a, accuracy: 50Pa
[1] Wetted parts material types may vary by pressure range. Please refer to manual or contact Additel for more information.
[2] 4-20 mA output and RS-485 not available in ADT685Ex models.
[3] External power required when using the 4~20mA.
1.4 Features
Ultra-low power consumption design, long-term operation Wide pressure ranges, up to 60,000 psi (4,200 bar)
Capacitive touch screen, interactive operation is convenient and easy to use Supports multiple type communication
modules to meet different needs, optional communication module including:
RS-232 or RS-485
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1.5 Basic Structure
Figure 1 Basic Structure
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Table 6 Basic Structure
No.
Part Name
Function
1
LCD Display
2
Back Light Button
Turn on/off the back light
3
Units Button
Switch the pressure engineering units
4
Zeroing/Clear Button
Readings zeroing or to clear the number in number editing interface
5
Power On/Off / Reset Button
Long press to power on/off the gauge,
short pressure to return to previous interface
6
Switchable Communication Module
Optional RS232, RS485, 2-wire (4~20) mA module and SWITCH
7
USB-Type C Port
Communication and power supply
8
Pressure module
9
Barometric pressure inlet port
Visible after removing the back cover (with ATM logo), it is used for barometer
sensor calibration
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2.Operation
2.1 Main Display
Main display as shown in Figure 2:
Menu bar: To access to the main functions of the gauge
Status bar: Including USB status, Bluetooth, battery, DIFF icons. The Bluetooth icon can be clicked to turn on or off
Bluetooth, 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. When the 4-20 mA module is enabled, the battery icon is not displayed due to the fact that External power is
required when using the 4-20mA option. Units and prompt information display area: Display engineering units or function
items and other information.
Identifier area : Including DIFF,AM,PM
，
filtering status icons
Percentage Pressure Indicating Area
：
Displays the pressure percentage on the around of the main display
Main display area: Display pressure values and other information.
Sub display area: Display a multi-digit value, or it can be divided into two left and right values for display, and supports
the display of Min, Max, Atm, sec, ℃,
℉
and% icons at the same time.
Zero/Ok Button: Pressure zeroing, value reset and confirmation operations.
icon means the touch screen is in sleep state, use the 4 physical buttons on the top can wake up the gauge. After
waking up, if there is no touch operation in the main interface for 60 seconds, the touch screen will automatically enter the
sleep state, and this icon will be displayed on the main interface at the same time (Except the secondary menu interface,
once you enter the secondary menu interface, the pressure gauge touch screen will always be awake).
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Figure 2 Main Display
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 interface immediately. The main interface display is divided into: menu bar, status bar,
pressure unit display area, identifier area ,main value display area, and secondary value display area and Zero/OK button,
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as shown in Figure 3.
Figure 3 Main Operation Interface
1. Menu Bar：The main interface displays the following menus, click the menu to enter or enable different functions:
(1) MENU
：
Click to enter the system setting function interface, in other interfaces, the MENU button is used to return
to the previous interface.
(2) Tare
：
Enable or disable the tare function, after this function is enabled, the set Tare value will be displayed on the
right side of the secondary value display area, press it to enter the editing interface to edit this value.
(3) Alarm
：
Enable or disable the alarm function. After this function is enabled, the left and right sides of the
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secondary value display area will display the lower limit and upper limit of the alarm respectively. Press it to edit
separately.
(4) Leak: Enter the pressure leak test interface, see chapter 2.6.
(5) Lock: Lock/Unlock the touch screen.
(6) REC: Enter the pressure record interface, see chapter 2.7.
(7) Unit：Pressure unit switching.
(8) Time: Enter the date and time editing interface.
(9) Peak: Enter the pressure peak record interface, see chapter 2.5.
(10) Light: Turn on or off the backlight, long press to enter the backlight time setting.
2. Status Bar: Including USB status, Bluetooth, battery, DIFF, absolute pressure
The Bluetooth icon can be clicked to turn on or off Bluetooth function.
3. Units and prompt information display area: Display engineering units, click this area to switch the pressure unit.
4. Main display area: Display pressure values, long press to enter the pressure resolution editing interface.
5. Sub display area: Display atmospheric pressure/temperature, tare value or Alarm upper and lower limits. When all
three functions are enabled, clicking the main display area will switch to display one of the messages in a loop. If
all the three functions are not enabled, the sub display area is empty.
6. Zero button: Zeroing the gauge under gauge pressure mode. In the absolute pressure mode, the Zero button will
be hidden.
7. Identifier area : Including DIFF,AM,PM ，filtering status icons
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2.3 Buttons
Power ON/OFF Button: Long press 3 seconds to power on/off the gauge. In the data input state, it could delete
the inputted data. In the menu state, it has the function of returning to the previous menu.
Backlight Button: Short press this button to turn on/off the display backlight, long press this button to set the
backlight duration time, there are five options: 10 seconds, 20 seconds, 30 seconds, 60 seconds, and ON (the backlight is
always on).
Units Button: Short press this button to switch the pressure engineering unit; long press this key to switch to the
temperature display and atmospheric pressure display function.
Zero Button: Short press this button to zeroing the gauge.
Note: After the pressure gauge enters the lock screen state (a dot is displayed in front of the Lock icon in menu bar),
only the Power on/off button can be operated, and a lock screen reminder will be triggered when the other three buttons
are operated.
2.4 Pressure Measurement
When the gauge is in the main interface, it will display the current pressure unit and real-time pressure value and
display the pressure percentage around the parameter of the main display.
2.4.1 Pressure Percentage Indication
The pressure gauge displays the pressure percentage on the around of the main display after entering the main
interface. As shown in Figure 4.
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Figure 4 Pressure percentage indication
2.4.2 Pressure Zeroing
When the gauge is in gauge pressure mode, press Zero button to execute the pressure zeroing. If the zeroing
operation fails, the pressure gauge will emit an error, and the Zero button will flash quickly to remind you. When in
absolute pressure mode, the Zero button is not displayed on the main interface, and the zeroing operation cannot be
performed.
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2.4.3 Pressure Unit Switching
Click the unit and prompt information display area to switch the pressure units, touch the left half of the pressure unit
area to switch to the previous pressure unit, and touch the right half to switch to the next pressure unit.
2.4.4 Pressure Type Switching
Click the MENU could enter the secondary menu bar, then, click P Type in the secondary menu bar to switch the
gauge/absolute pressure mode. When switching to the absolute pressure mode, the status bar will display the
icon. If the pressure gauge does not support gauge/absolute pressure mode switching, the P Type menu will be hidden.
2.4.5 Pressure Tare
Click the Tare icon in the menu bar to enable or disable the tare function. After this function is enabled, a black dot will
appear in front of the Tare icon, and the set tare value will be displayed on the right side of the sub display area. Press it to
edit this value.
2.4.6 Alarm
Click the Alarm icon in the menu bar to enable or disable the alarm function. After this function is enabled, a small
black dot will appear in front of the Alarm icon, and the left and right sides of the sub display area will display the lower and
upper limits of the alarm. Press them to edit separately. When the pressure value exceeds the alarm limit, an alarm tone
will sound, the pressure value in the main value area of the screen and the percentage pressure on the outside of the
display will flash.
2.5 Pressure Peak Recording
Click the Peak icon in the menu bar to enter the peak recording interface, as shown in Figure 5. Click Zero to reset
the peak values. Click the Lock icon during the recording process to lock the screen and click Lock again to unlock.
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Click the Peak or MENU icons to return to the main operation interface.
Figure 5 Pressure peaks recording
Table 7 Pressure peaks setting parameter table
Items
Introductions
Max
Maximum Value
Min
Minimum Value
Zero
Reset data
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2.6 Pressure Leak Test
2.6.1 Click the Leak icon in the menu bar to enter the pressure leak test setting interface, as shown in Figure 6, the main
value area displays the test time , press the up and down number to edit this value. Click the unit position to
switch the pressure unit. The sub-display area displays the real-time pressure value , click button to start
the pressure leak test.
Figure 6 Pressure leak test setting interface
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2.6.2 In the pressure leak test operation interface, a black dot appears in front of the Leak menu, the main display area
displays the countdown, and the sub display area displays the real-time pressure value, as shown in Figure 7.
Figure7 Pressure leak test operation interface
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2.6.3 When the pressure leak test operation is finished, as shown in Figure 8, the icon appears in the identifier
area and the differential pressure value is displayed in the main display area. Click the sub display area to switch
between the start pressure value P1 and the end pressure value P2.
Figure 8 Pressure leak test finish interface
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2.7 Data Logging
2.7.1 Click REC on the menu bar to enter the data logging setting interface, as shown in Figure 9, the main display area
displays the real-time pressure value , the left side of the sub display area displays the logging interval
, click it to edit the time interval, and the right side displays the used storage space in percentage, click it to
delete the stored data. Click OK to start logging pressure data.
Figure 9 Data logging setting interface
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2.7.2 The pressure record operation interface, as shown in Figure 10. A small black dot appears in front of the REC
menu, the main display area displays the real-time pressure value, the left side of the sub display area displays the
number of recorded data , and the right side displays the percentage of storage space that has been used
.
Figure 10 pressure record operation interface
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2.8 Backlight ON/OFF
Short press Light icon in the menu bar, you can turn on and off the backlight function. Long press to enter the
backlight setting interface, as shown in Figure 11, the main display area displays the automatic backlight turn off time, click
it to edit the automatic backlight off time.
Figure 11 Backlight setting interface
2.9 Screen Lock and Unlock
Press the Lock icon on the menu bar to lock and unlock the screen. When entering the lock screen state, a dot is
displayed in front of the Lock icon. At this time, the lock menu, light menu, power button and backlight button can be
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operated. Click other places on the screen or three other physical buttons, the Lock menu bar will flash to remind the
pressure gauge has entered the lock screen state.
Note: If the password protection is turned on, you will be prompted to enter the password when the unlock operation
is performed, and only the correct password will unlock the display.
2.10 Date and Time
Click Time icon in the menu bar to enter the date and time display interface, as shown in Figure 12 and Figure 13.
Press the title bar can switch to the time display interface, date display interface, time format interface, date format
interface,12-hour AM PM format interface(Current time under12-hour format show on this interface)
Figure12 Time display interface Figure13 Date display interface
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12-hour AM PM display interface, as shown in Figure 14.
Figure14 12-hour AM PM display interface
Press the main display area of the time to enter the time editing interface .If the current time under 24-hour
format ,please press the right side of sub display to edit second .
Press the year display position in date display interface to enter the year editing interface.
Press the month&day display position to enter month&day editing interface.
Press the main display area of time format interface to edit the time format, you can choose12-hour-or 24hour format.
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Press the main display area of date format interface can switch the date format to yyyy-mm-dd,
mm-dd-yyyy,dd-mm-yyyy.
Press the main display 12-hour format AM PM interface can switch to 12-hour format AM PM settings.
2.11 Password Display and Editing
When entering the pressure gauge calibration, restoring the factory settings, and clearing the data record function,
the password keyboard will pop up. The password keyboard can edit each digit by press up and down arrows, click the
OK button to confirm the password, and click the MENU icon or power button to cancel and return. As shown in Figure 15.
Figure15 Password display and edit interface
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2.12 Number Editing
The pressure gauge provides a number editing interface, as shown in Figure 16. Adjust the value by clicking the
symbol area on the left side of the screen to switch the positive or negative sign. Click the OK button to confirm, click
Menu icon or short press the power button to cancel and return.
Figure16 Numbers editing interface
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2.13 Cycle Selection Keyboard Display and Editing
The gauge provides a cycle selection keyboard to set parameters, as shown in Figure 17. The main display area will
flash to indicate that this area can be edited, and the main display area can be switched by clicking the upper and lower
edges of the main display area to cycle through the selections. Click the MENU icon or short press the power button to
cancel the setting and return.
Figure17 Cycle selection keyboard editing interface
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3. System Settings
On the main interface, press the MENU icon on the menu bar to enter the system settings.
The system settings include the following:
MENU: Press it to return to the main interface, in other interfaces, it is used to return to the previous interface.
Cal: Perform pressure module, atmospheric pressure sensor and current measurement (only supported when the
4-20 mA module is configured) calibration.
OP List: Press to enter the system information menu. Press the title bar (example: “Version”) to see the rest of the
operating list menus, it include version display, resolution setting, backlight time setting, whether the main interface
displays atmospheric pressure and temperature or not, overpressure record display, touch sound on/off settings ,data
record storage formatting operation, restore to factory settings.
Check: Display the error code of the equipment failure.
Comm: Press to enter the communication setting interface.
Auto Off: Press to enter the automatic power off setting interface.
Filter: Press to enter the filtering setting interface.
P Type: Click P Type in the menu bar to switch the gauge/absolute pressure mode. When switching to the absolute
pressure mode, the status bar will display the ABS icon. If the pressure gauge does not support gauge/absolute pressure
mode switching, the P Type menu will be hidden.
Rate: Press to enter the pressure rate mode setting interface.
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3.1 Communications
Press the Comm icon to enter the communication setting interface, press the title bar to switch between different
communication setting interfaces.
3.1.1 Bluetooth
The gauge can communicate with the mobile App Additel Link via Bluetooth.
Table 8 Wireless communication settings
Items
Effective Value
Explanation
Bluetooth
ON/OFF
The main display area and buletooth
icon in status bar displays the bluetooth
on/off status, click to the main display area
or buletooth icon set the bluetooth switch
on/off status
MAC Address
Read Only
The sub display area displays the
Bluetooth MAC address (displayed from the
second digit of the MAC address)
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3.1.2 RS232/RS485
When the RS232/RS485 module is enabled, the RS232/RS485 module setting interface will appear in the
communication settings, as shown in Figure 18. The main display area displays the address , click to edit it. The left
side of the sub display area displays the baud rate , click to enter to select the baud rate. The right side of the sub
display area displays the number of data digits and stop bits , click to enter editing.
Figure18 RS232/RS485 setting interface
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3.1.3 4-20mA
1. When the 4-20mA module is enabled, the range setting interface is shown in Figure 19. The sub display area
provides the setting of the upper and lower limits of the range, and the unit is same as the main display unit of
the gauge.
Figure19. 4-20mA ranges setting interface
2. When the 4-20mA module is enabled, the loop current test interface is shown in Figure 20. Click the main
display area and set a value that within the current output range to enter the loop current test state.
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3. External power is required when using 4~20mA option.
Figure 20 4-20mA loop current test interface
3.1.4 SWITCH Settings
When the SWITCH module is enabled, the setting interface is shown in Figure 21. SWITCH is associated with the
pressure alarm in section 2.4.6, the main display area shows ALARM, and the output state is ON or OFF, click the main
display area to switch.
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Figure21 Switch module setting interface
3.2 Auto Power Off Settings
Press the Auto Off icon on menu bar to enter the auto power off setting, click the title bar to turn on or off the auto
power off function, in the open state, click the main value display area to edit the auto power off time .
3.3 Filter Settings
Press the Filter icon in the menu bar to enter the filter setting interface and click the title bar to cycle through the filter
modes: off, first-order filtering, and average filtering.
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1. First-order filtering, the main display area displays the filter coefficient, click to edit.
2. Average filtering, the main display area displays the number of filtered samples, click to edit, and the sub display
area displays the number of extreme value pairs will be removed, click to edit.
Table 9 Filter Settings
Item
Effective Value
Explanation
Filtering
ON/OFF
Filter ON or OFF
Filter Modes
First-order filtering / Average filtering
Choose the filter modes
Coefficient
0.05
～
1
First-order filtering mode is applicable
Number of filtered samples
1
～
10
Number of samples for average filtering
Extreme value pairs will be removed
0～4 (The Extreme value pairs number
should not exceed (Samples
number-1)/2)
Extreme value pairs will be removed in
average filtering
3.4 Pressure Reading Display Rate
Click Rate in the menu bar to enter the pressure readings display rate setting, the main display area displays the
pressure readings display rate, 3-1 means that the gauge displays 3 readings per second. Click to edit.
The pressure gauge provides the following reading display rates:
10━1(10 readings/1 sec), 3━1(3 readings/1 sec), 2━1 L(2 readings/1 sec), 1
━
1 L(1 readings/1 sec)
1━2 L(1 reading/2 sec), 1━3 L(1 reading/3sec), 1━4 L(1 reading/4 sec), 1
━
5 L(1 reading/5 secs,
1━6 L(1 reading/6 sec), 1━7 L(1 reading/7 sec), 1━8 L(1 reading/8 sec), 1
━
9 L(1 reading/9 sec),
1
━
10 L(1 reading/10 sec)
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With a L indicates that the gauge is in low power consumption working mode, and without L indicates that the gauge
is in normal working mode.
The sub display area sets the system low power consumption mode. When the optional module is not a 4-20mA
transmitter module, the low power consumption mode open or close settings will be displayed in this area. Click the sub
display area to enter to edit low power mode. When the low power consumption mode is turned on, an icon will
appears on the main interface, then the touch screen will be turned off, and the system will enter a low power consumption
state. At this time, the screen needs to be awakened by a physical button. When the low power mode is turned off, the
touch screen will not be turned off.
3.5 Calibration
3.5.1 Calibration Interface
Press the Cal icon in menu bar to enter the system calibration. System calibration includes pressure calibration,
atmospheric pressure calibration, 4-20 mA calibration (If the 4-20 mA module is enabled, the 4-20 mA calibration interface
will appear), input the default calibration password 123456 to enter the system calibration settings, as shown in Figure 22.
1. Click the title bar "IPM", you can switch between the calibration types, it includes pressure calibration,
atmospheric pressure calibration, 4-20 mA calibration (If the 4-20mA module is enabled, the 4-20mA calibration
interface will appear).
2. Click the main display area to switch the calibration type. Display 1 means single-point calibration, 2 means
two-point calibration, 3 means three-point calibration, CANCEL means cancel calibration, and ZERO means
cancel zeroing.
3. When it has been calibrated, the sub display area displays the calibration date. When there is no calibration, the
sub display area displays "------".
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4. After finishing the calibration setting, click “OK” to enter calibration.
Figure22 Calibration Interface
3.5.2 Pressure Calibration
1. Two-point calibration. The default calibration points are the upper and lower limits of the range. The sequence of
calibration is to calibrate the lower limit first and then the upper limit, as shown in Figure 23 for the lower limit of
calibration. Click the title bar to switch the pressure unit. The main area displays the original pressure value
, the left side of the sub display area represents the first point of calibration, and the right side
represents the standard value. Click to edit. Click OK to go to the next point.
2. Carry out calibration to each point in order, and finally submit the calibration data to complete this calibration.
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3. Three-point calibration, the default calibration points are the lower limit of the range, zero, and the upper limit of
the range. The sequence of calibration is to calibrate the lower limit first, then zero point, and finally the upper
limit. After the upper limit is finished, return to the calibration setting interface.
4. Cancel calibration: In the pressure calibration setting interface, click the main display area to the cancel
calibration interface, and click OK to cancel the calibration data.
5. Cancel zero: In the pressure calibration setting interface, click the main display area to the cancel zero interface,
click OK to cancel the zero.
Figure23 Pressure calibration interface
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3.5.3 Barometric Calibration
Provide single point calibration, two points calibration and cancel calibration. Before the calibration, please open the
battery cover of the gauge, and connect the pressure hose to the
φ
4 pressure port, as shown in figure 24.
Figure24 Barometric calibration connection
The barometric calibration interface is shown in Figure 25. Click the main value display area to switch the selection of
barometric pressure calibration. Display 1 means barometric pressure single point calibration, 2 means barometric
pressure two points calibration, and CANCEL means cancel calibration. Click OK to enter the barometric pressure
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calibration interface, the main display area displays the measured value of barometric pressure, the left side of the sub
display area indicates the current calibration point, and the right side indicates the standard value, it can be clicked to edit.
Click OK to enter the next point, and finally submit the calibration data to complete the calibration.
Figure25 Barometric calibration selection interface
3.5.4 (4~20) mA Calibration (only available when using (4~20) mA module)
When the (4~20) mA module is enabled, the module can be calibrated. Two-point calibration and cancel calibration
are provided. The main display area displays the output value, the left side of the sub display area displays the calibration
point, and the right area displays the entered standard value. Click OK to go to the next point.
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3.6 OP List Settings
Press the OP List icon in menu bar to enter the interface, click the title bar on the OP List interface to switch different
displays, including: version information, resolution setting, automatic backlight time setting, barometric pressure and
temperature display, overpressure record information, touch sound, data record storage formatting operation
, restore to factory settings,low power consumption mode on/off setting (this setting appears when the optional module is
not a (4~20) mA module).
3.6.1 Version Information
The title bar displays VERSION. Press the main display area to switch version information, including system software
version, hardware version, and pressure module version.
3.6.2 Resolution Settings
The title bar displays RESOLUT, press the main display area shortly to edit he resolution. It supports 4 digits, 5 digits,
and 5 and a half digits resolution settings.
3.6.3 Auto-Backlight Time Settings
The title bar displays LIGHT. Press the main display area to edit the time to automatically turn off the backlight. It
supports 10 seconds, 20 seconds, 30 seconds, 60 seconds, and ON (the backlight is always on).
3.6.4 Barometric Pressure and Temperature Display
The title bar displays ATMTEM. Press the main display area to edit the atmospheric pressure or temperature display.
It supports setting the secondary display area of the main display to turn on and off the atmospheric pressure and
temperature display.
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3.6.5 Overpressure Record Information
The title bar displays OVER P, Press the main display area to switch to the next overpressure record information, the
main display area displays the total number of overpressure records, the current serial number, the sub display area
displays the overpressure value, short press the sub display area to switch to display the date and time of the
overpressure record.
3.6.6 Touch Sound Settings
The title bar displays TOUCH, Press the main display area to edit the touch sound settings, it supports touch sound
on and off.
3.6.7 Data Record Storage formatting Operation
The title menu displays FORMAT, click OK, it will remind you to enter password. The default password is: 123456.
Once successfully enter password, the equipment will proceed to date record storage formatting operation and automatic
rebooting.
3.6.8 Restore to Factory Settings
The title bar displays RESTORE, click ok it will remind you to enter password .The default password is: 123456, click
OK means execute restore to factory settings operation, click MENU or press power button means back to previous menu.
3.7 Malunction Information
Press the Check icon in the menu bar to enter the equipment malfunction interface. When there is nothing wrong, it
will display NORMAL. When there is malfunction, the corresponding fault code will be displayed. Click the main display
area to switch to display different fault codes.
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Table10 Malfunction information list
Error codes
Description
Solution
101
Ferroelectric self-test failed
Restore to factory settings
102
Pressure module init failed
Check the pressure module
connections
103
Barometric module init failed
Please contact the manufacturer
104
Barometric module calibration init failed
Please contact the manufacturer
105
Flash init failed
Enter secondary menu OPList(Refer
to 3.6.7),switch to FORMAT
display ,proceed data record storage
formatting operation. If the fault still, please
contact the manufacturer.
106
Bluetooth module init failed
Switch off and start again, if the fault
still, please contact the manufacturer
107
Battery low voltage
Change the battery
108
Battery over voltage
Change the battery
1001
Pressure module: constant circuit resistance failed
Pressure module problem, please
contact the manufacturer
1002
Pressure module: internal baseline failed
1003
Pressure module: AVDD failed
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1011
Pressure module: VCC power voltage failed
1021
Pressure module: MCU failed
1031
Pressure module: AD7124 CRC failed
1041
Pressure module: AD ALDO failed
1051
Pressure module: AD DLDO failed
1061
Pressure module: AD failed
1071
Pressure module: AD internal baseline failed
1081
Pressure module: TMP failed
1091
Pressure module: pressure sensor open circuit failed
1092
pressure sensor short circuit failed
1101
Pressure module: constant circuit resistance failed
1111
Pressure module: constant voltage excitation failed
1121
Pressure module: internal EEPROM failed
1131
Pressure module: external EEPROM failed
Note: In case of it cannot be turned on, please firstly open the cover of the pressure gauge, replace the battery and press the power
button to turn it on again. If it still, please contact the manufacturer.
3.8 Operation Error Codes
When performing function operations or information editing operations on the screen, since the screen cannot display
detailed text, the pressure gauge will prompt in the form of an error codes.
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Table11 Operation Error codes list
Error codes
Description
Measure
001
Password wrong
Check the password
002
Parameter beyond the range
The entered value is beyond the
gauge’s range, enter a new value
003
Operation execution failed
Try it again
004
Flash initialization failed when performing data
recording
Enter secondary menu OPList(Refer
to 3.6.7),switch to FORMAT
display ,proceed data record storage
formatting operation. If the fault still,
please contact the manufacturer.
4.Copyright
Additel owns all copyrights to this system and reserves all rights. Please respect the rights of our company.
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Appendix A：RS232 module DB9 Pins Description
Figure 26 RS232 module DB9 female pins description
Table12 RS232 module DB9 pins description
Pins
Description
1
Reserved
2
TXD
3
RXD
4
Reserved
5
GND
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6
Reserved
7
Reserved
8
Reserved
9
Reserved
Appendix B：RS485 module DB9 Pins Description
Figure27 RS485 module DB9 female pins description
Table13 RS485 module DB9 pins description
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Pins
Description
1
Reserved
2
Reserved
3
Reserved
4
Reserved
5
GND 6 D+
7
Reserved
8
Reserved
9
D-
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Appendix C：SWITCH Module Pins Description
Figure28 SWITCH module pins description
Table14 SWITCH module pins description
Pins
Description
1
SW1
2
Reserved
3
Reserved
4
Reserved
5
GND
6
Reserved
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7
Reserved
8
SW2
9
Reserved
Note:
[1] Switch node output characteristics: open-drain output, internal resistance of 100Ω when turned on, and maximum external voltage of
30V.
[2] Ex gauges do not support SWITCH module.
Appendix D：2 Wire (4~20) mA Module Pins Description
Figure29 2 wire (4~20)mA module female pins description
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Table14 2 wire (4~20)mA module female pins description
Pins
Description
1
L00P+
1
2
L00P-
Note:
[1] Power supply range：DC 12V~36V
[2] Transmission output accuracy level (including pressure, -10℃~50℃ full temperature compensation): 0.05/0.1/0.2
[3] Only non-Ex proof version is supported
Appendix E: Special Notice for ADT685Ex Cable
Any data download devices connected to the Digital Pressure Gauge shall be approved SELV or Class 2 equipment
against IEC 60950 or an equivalent IEC standard. The maximum voltage Um from the device shall not exceed 6 Vdc for
USB port and 16 Vdc for RS232 port.
Table15 ADT685Ex cable list
No.
Ex cable name
1
Ex cable name
2
EX USB Cable
Note: Ex-proof cables can only be used in safe areas, do not use in hazardous areas.
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Appendix F：ADT685Ex EX-Proof Description
Conform the CE, CSA, UKCA and IECEx certification:
1. ATEx certificate：II 1 G Ex ia IIC T4 Ga
Ta=-20
℃
to+50
℃
IECEx SIR 21.0018X
CSANe 21ATEx2078X
1. CSA certificate：Class I,Division 1,Groups A,B,C and D,T4
Class I,Zone 0,AEx ia IIC T4 Ga
CSA 21CA 80045682X
Ta=-20
℃
to+50
℃
Ex ia IIc T4 Ga
Alkaline, AA
Panasonic Powerline
LR6A
Alkaline, AA
Rayovac
815
Alkaline, AA
Maxwell
LR6
Alkaline, AA
Energizer E91
E91
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