• Order with calibration
  • Not sure what you need? Ask our Team

Additel 685

Key Features

Enquire

Looking for the most advanced, best performing and modern digital pressure gauge on the market? Congratulations, you’ve just found it! Additel’s ADT685 digital pressure gauges are in a class of their own with an amazingly easy to use and read touchscreen display. The all new modern menu structure and control interface bring a new and refreshing experience to gauge work. This completely new way of interfacing with our gauges makes the ADT685 gauges a real pleasure to use. With microprocessor technology, state-of-the-art silicon pressure sensors and plenty of onboard storage capacity, these attractive and fully temperature compensated gauges will provide the performance, durability and reliability you’ve come to expect from genuine Additel products. To provide support for intrinsically safe needs, the ADT685Ex comes ready to provide pressure measurements and recordings in the most demanding of environments. Each Additel 685 is also IP67 rated to protect your investment in dusty and/or wet environments

A Modern User Experience:

Additel has gone above and beyond to provide our customers with the best possible experience when using these new and revolutionary gauge. The 3.4 inch touchscreen display comes with a protective replaceable tempered glass screen and is a refreshing update to the traditional push button or blister pad interface. With an easy to navigate menu structure and fast touchscreen response, you will find these ADT685 gauges simple yet powerful to use. The easy to read display isn’t just fun to use, but it’s built rugged to handle the demands of a busy technician in the field or the laboratory.

Every model measures Gauge or Absolute Pressure:

The Additel 685 Digital Pressure Gauges contain a built-in barometer sensor which allows for the pressure reading to display in gauge pressure or absolute pressure with a simple menu selection. The built-in barometer is calibrated and certified to an accuracy of 50 Pa. With this unique feature, the ADT685 can be a solution for three common applications: gauge pressure measurement, absolute pressure measurement, and barometric or atmosphere pressure measurement. Having an Additel as your gauge will always give you the ability to do more with one instrument!

Datalogging Option:

We've added the option to do stand-alone data logging with the ADT685. Now you can record more than 10M records internal to the 685 series. Each record includes date, time, pressure and temperature readings. Download the logged data with our free Additel/Land software or you can purchase our Additel/Log II for real-time logging and data analysis. Additel's 685 digital pressure gauges are unmatched in performance and reliability. You get nothing but the best when you buy Additel Products!

Specifications
Model ADT685 ADT685Ex
Description Digital Pressure Gauge Intrinsically Safe Digital Pressure Gauge
Intrinsic Safety & European Compliance CE CE marked, ATEX certified intrinsically safe, II 1G EX ia IIC T4 Ga
Accuracy (For detailed accuracy, please see pressure range table) 685(Ex)-02 : 0.02% of full span
685(Ex)-05 : 0.05% of full span
685(Ex)-RD: 0% to 20% of Range: 0.02% of full span, 20% to 110% of Range: 0.1% of reading, Vacuum: 0.25% of full span [1][2]
Barometric Accuracy (Built-in barometer) 55Pa
Gauge Types Gauge pressure, compound pressure, absolute pressure, differential pressure and barometric pressure
Display Touch screen (3.4'' FSTN segment capacitive) - 5 1/2 full digits
Screen protector: tempered glass film (replaceable)
Display rate: 3 readings per second (default setting). Adjustable from 10 readings per second to 1 reading every 20 seconds
Pressure Units Pa, kPa, MPa, psi, bar, mbar, kgf/cm2, inH2O, mmH2O, inHg, mmHg and 3 customized unit
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
Pressure Port ≤15,000 psi: 1/4NPT male, 1/2NPT male, 1/4BSP male, 1/2BSP male, M20×1.5 male
>15,000 psi: 1/4HP female or 1/4HP male, *1/4HP female: Autoclave F-250-C, 9/16" - 18 UNF-2B, *1/4HP male: Autoclave M-250-C, 9/16" - 18 UNF-2A
Differential Pressure: Barb fitting
Other connections available per request
Power [5] Battery: Three AA alkaline batteries (included)
Battery life: 1500 hours typical
Power auto-off: user selectable
External power: 110/220 V adapter (5 VDC) (optional, excl ADT685Ex)
Enclosure Case material: 304 SS
Wetted parts: 316 SS[3]
Dimensions: 4.65" (118mm) width X 1.77" (42mm) depth X 7.01" (178mm) height
Weight: 1.50 lbs. (0.68 kg)
Compliance Protection Level: IP67
Vibration: 5 g (10-500 Hz)
Shock Resistance: 8 g/11 ms
CE
Data Logging (Available on with data logging tion ADT685-...-DL) Data storage: 10,000,000 records
Rate: user selectable from 0.1 to 9999.9 second intervals
Communication USB Type-C and Bluetooth included RS-232 or RS-485 [4] (optional)
4 - 20 mA Output[4] 3.2 μA
Warranty 1 year
[1] FS = -14.5 psi
[2] Applicable ADT685-RD-CPX
[3] Wetted parts material types may vary by pressure range. Please refer to manual or contact Additel for more information.
[4] 4-20mA output and RS-485 not available in ADT685Ex models.
[5] External power required when using the 4-20mA option

 

Gauge Pressure [1]
P/N Pressure Range Media [2] Accuracy Burst Pressure
(psi) (bar) %FS %RD
V15 -15 -1 G 0.02 (0.05) N/A
GP2 2 0.16 G, L 0.05 N/A
GP5 5 0.35 G, L 0.05 0.1
GP10 10 0.7 G, L[3] 0.02 (0.05) 0.1
GP15 15 1 G, L[3] 0.02 (0.05) 0.1
GP30 30 2 G, L[3] 0.02 (0.05) 0.1
GP50 50 3.5 G, L 0.02 (0.05) 0.1
GP100 100 7 G, L 0.02 (0.05) 0.1
GP150 150 10 G, L 0.02 (0.05) 0.1
GP300 300 20 G, L 0.02 (0.05) 0.1
GP500 500 35 G, L 0.02 (0.05) 0.1
GP600 600 40 G, L 0.02 (0.05) 0.1
GP1K 1000 70 G, L 0.02 (0.05) 0.1
GP1.5K 1500 100 G, L 0.02 (0.05) 0.1
GP2K 2000 140 G, L 0.02 (0.05) 0.1
GP3K 3000 200 G, L 0.02 (0.05) 0.1
GP5K 5000 350 G, L 0.02 (0.05) 0.1
GP10K 10000 700 G, L 0.02 (0.05) 0.1
GP15K 15000 1000 G, L 0.05 (0.1) 0.1 1.5×
GP20K 20000 1400 G, L 0.05 (0.1) N/A 1.5×
GP25K 25000 1600 G, L 0.05 (0.1) N/A 1.5×
GP30K 30000 2000 G, L 0.05 (0.1) N/A 1.5×
GP36K 36000 2500 G, L 0.05 (0.1) N/A 1.5×
GP40K 40000 2800 G, L 0.05 (0.1) N/A 1.35×
GP50K 50000 3500 G, L 0.1 (0.2) N/A 1.2×
GP60K 60000 4200 G, L 0.1 (0.2) N/A 1.1×
[1] Sealed gauge pressure for above 1,000 psi
[2] G=Gas, L=Liquid
[3] 0.02% FS for gas media only

 

Barometric Pressure
P/N Pressure Range Media Accuracy Burst Pressure
Low High
BP 60 kPa 110 kPa G 40 Pa

 

Absolute Pressure
P/N Pressure Range Media [1] Accuracy (%FS) Burst Pressure
(psi) (bar)
AP5 5 0.35 G, L 0.1
AP10 10 0.7 G, L 0.1
AP15 15 1 G, L 0.1
AP30 30 2 G, L 0.1
AP50 50 3.5 G, L 0.1
AP100 100 7 G, L 0.05 (0.1)
AP300 300 20 G, L 0.05 (0.1)
AP500 500 35 G, L 0.05 (0.1)
AP1K 1000 70 G, L 0.05 (0.1)
AP3K 3000 200 G, L 0.05 (0.1)
AP5K 5000 350 G, L 0.05 (0.1)
[1] G=Gas, L=Liquid

 

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] 100× ±10 psi
DP2 ±2 ±5.0 G 0.05[2] 100× ±10 psi
DP5 ±5 ±10 G 0.05[2] 50× ±10 psi
DP10 ±10 ±25 G 0.05[2] 20× ±10 psi
DP20 ±20 ±50 G 0.05 20× ±10 psi
DP30 ±30 ±75 G 0.05 20× ±10 psi
DP50 ±50 ±125 G 0.05 ±10 psi
DP100 ±100 ±250 G 0.02 ±15 psi
DP150 ±150 ±350 G 0.02 50 psi
DP300 ±300 ±700 G 0.02 50 psi

 

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
CP5 ±5 ±0.35 G 0.02 (0.05) 0.1
CP10 ±10 ±0.7 G 0.02 (0.05) 0.1
CP15 ±15 ±1 G 0.02 (0.05) 0.1
CP30 -15 to 30 -1 to 2 G 0.02 (0.05) 0.1
CP100 -15 to 100 -1 to 7 G, L 0.02 (0.05) 0.1
CP300 -15 to 300 -1 to 20 G, L 0.02 (0.05) 0.1
CP500 -15 to 500 -1 to 35 G, L 0.02 (0.05) 0.1
CP600 -15 to 600 -1 to 40 G, L 0.02 (0.05) 0.1
CP1K -15 to 1000 -1 to 70 G, L 0.02 (0.05) 0.1
[1] G=Gas, L=Liquid
[2] FS specification applies to the span of the range

 

Communication Types Supported
Communication Type ADT685 ADT685Ex ADT686 ADT673
RS232
RS485    
Wifi    
USB
Bluetooth (BLE)
● Included ○ Optional

 

Additel Software Compatability Matrix
Communication Type ADT685/ADT685Ex ADT686/ADT673
ACal LogII Land Link ACal LogII Land Link
RS232    
RS485 only for ADT685 ◐ [2] ◐ [2] ◐ [2]          
Wifi         ● [1]
USB    
Bluetooth (BLE)            
● Supported  ◐ Non Ex models only
[1] This configuration requires that the device be connected to ACloud via Wi-Fi to utilize the Additel Link app.
[2] 4-20 mA output and RS-485 not available in ADT685Ex models.

 

 

Accessories Included
Rubber boot
AA alkaline battery (3 pcs)
USB cable type-C
RS-485 Adapter (for RS-485 models only)
4-20mA cable (for 20MA models only)
RS-232 Ex adapter (for EX RS-232 models only)
Silicone tube – 1 meter each (2 pcs for DP models only)
Manual
ISO 17025 Accredited Calibration Certificate

 

Optional Accessories
Model Number Description
9903 Carrying Case for one digital pressure gauge
9810 110V/220V external power adapter (DC 5V)
9502 Additel/Log II real time data logging and graphical software for ADT 685 and ADT 685Ex
9530-BASIC Additel/Acal Automated calibration software with asset management, basic version
9530-NET Additel/Acal Automated calibration software with asset management, network version, Includes server installation and 1 user license
9050 USB to RS232 (DB9/M) Adapter
9050-EXT RS 232 (DB9/M) extension cable, 9 feet
1220610724 Screen protector kit
9040 Hanging strap with magnet
Note: For oil-free applications contact Additel.

Sales Enquiry

Additel 685