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Additel 685 Digital Pressure Gauge with Optional Data Logging
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- Pressure ranges up to 60,000 psi (4,200 bar)
- 0.02%, 0.05% FS or 0.1% RD Accuracy
- Gauge, Compound, or Differential pressure
SKU
ADT685
MPN
ADT685
The Additel 685 Digital Pressure Gauge uses microprocessor control and silicon pressure sensors to provide stable and repeatable pressure readings. The unit is IP67 rated for protection against dust and water ingress.
A 3.4-inch colour touchscreen with replaceable tempered glass provides menu-based configuration and measurement control. The interface allows access to pressure units, logging functions, and operating modes without physical buttons.
The gauge includes an internal barometric sensor calibrated to 50 Pa accuracy. This enables selection between gauge and absolute pressure measurement, and also allows direct atmospheric pressure measurement.
An optional stand-alone data logging function provides internal storage for more than 10 million records. Each entry includes date, time, pressure, and temperature data for traceable measurement recording and analysis.
ADT685 Digital Pressure Gauges
Additel 685 / 686 / 673 - Product Details & Differences
Additel Pressure Gauge Screen Durability Showcase
Key Features
- Pressure ranges up to 60,000 psi (4,200 bar)
- 0.02%, 0.05%FS or 0.1%RD accuracy
- Fully temperature compensated accuracy
- Every model measures Gauge or Absolute Pressure
- Built-in Barometer
- Touchscreen display
- Bluetooth and USB communications
- Data logging (optional)
- IP67 rated
- Communicates with Additel's Link Mobile App
- ISO 17025-accredited calibration w/data included
Ordering Information
The part number is broken down into codes so you can easily customise your instrument.
| Model | Accuracy | Pressure Range P/N | Range Type | Pressure Port Type | Data Logging | Comm Port (Optional) |
|---|---|---|---|---|---|---|
| Options | ||||||
| ADT685 | 01 - 0.01% of full span 02 - 0.02% of full span 05 - 0.05% of full span 10 - 0.1% of full span 20 - 0.2% of full span RD - 0.1% of reading |
See pressure range table | PSI-range by psi BAR-range by bar H2O-range by inH2O |
N- 1/4NPT male N2- 1/2NPT male B-1/4BSP male B2-1/2BSP male M-M20 X 1.5 male AF-Autoclave F-250-C female AM-Autoclave M-250-C male |
DL | 232 = RS - 232 485 = RS - 485 20MA = 4-20 mA |
| Example | ||||||
| ADT686 | 02 | GP300 | PSI | N | DL | WIFI |
What's Included?
- Pressure gauge
- Rubber boot
- Three AA alkaline batteries
- USB cable (type-C)
- RS-485 Adapter (for RS-485 models only)
- 4-20mA cable (for 20MA models only)
- Silicone tube - 1 meter each (2 pcs for DP models only)
- ISO 17025 Accredited Calibration Certificate
Additel 685 Link Video
Introduction to Pressure Calibration - Additel Basics
Calibration Terminology - Additel Basics
Types of Pressure Measurement Devices - Additel Basics
Call for Pricing
Call 01642 931 329 or complete the form:
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Technical Information
Specification
| European Compliance | CE, UKCA |
|---|---|
| Accuracy (For detailed accuracy, please see the pressure range table) |
685-01: 0.01% of full span; 02: 0.02% of full span; 05: 0.05% of full span |
| 685-RD: 0% to 20% of range: 0.02% of full span 20% to 110% of range: 0.1% of reading |
|
| Built-in barometer: 55 Pa | |
| 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[3] | Pa, kPa, MPa, psi, bar, mbar, kgf/cm2, inH2O@4°C, mmH2O@4°C, inHg@4°C, mmHg@4°C and 3 customizable units |
| Environmental | Compensated Temp.: 14°F to 122°F (-10°C to 50°C) Operating Temp.: 14°F to 122°F (-10°C to 50°C) Storage Temp.: -4°F to 158°F (-30°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 x 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 | 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[1] Size: 4.65" x 1.77" 7.01"(118 x 42 x 178 mm) Weight: 1.50 (0.68 kg) |
| Compliance | Protection Level: IP67 Vibration: 5 g (10-500 Hz) Shock Resistance: 8 g/11 ms |
| Data Logging (Available on data logging option 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[2](optional) |
| 4 - 20 mA Output[2] | 3.2 μA |
| Additel Warranty | 1 Year |
| [1] Wetted parts material types may vary by pressure range [2] 4-20mA output and RS-485 [3] Available units are dependent on the overall pressure range |
|
Document Downloads
Additel 685 Digital Pressure Gauge Datasheet
Additel 685 Digital Pressure Gauge Calibration Manual
Additel 685 Digital Pressure Gauge Command Sets
Additel 685 Digital Pressure Gauge User Manual
Additel 685 Digital Pressure Gauge Resolution Guide
Additional Information
SKU
ADT685
Manufacturer Part Code
ADT685
Additel 685 Digital Pressure Gauge with Optional Data Logging