Additel - Digital Pressure Gauges | ADT681 series

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ADT681 series are loaded with functionality and remarkably easy to use. To reach the best performance, every silicon pressure sensor in our gauges have been specially aged, tested and screened before assembly. Additel's ADT681 series of digital pressure gauges are unmatched in performance and reliability. Best of all they are affordable. 

With advanced microprocessor technology and state-of-the-art silicon pressure sensors, the 681 series digital pressure gauges provide an accurate, reliable, and economic solution for a wide range of pressure applications. They are loaded with functionality and remarkably easy to use. To reach the best performance, every silicon pressure sensor in our gauges is specially aged, tested and screened before assembly. At Additel, fully temperature compensated accuracy means every sensor is pressure tested at several environmental temperatures from -10°C to 50°C. With this test data individual coefficients are generated and stored in the gauge characterizing its performance over the full temperature compensated range.

Designed to fit your need

Additel pressure gauges give you the widest variety of sensor choices on the market. Whether you require low inches of water measurement or very high pressure measurement, we have a gauge that will meet your need. We offer sensors which are ±1 inH2O (±2.5 mbar) to 40K psi (2,800 bar) and everything in between.

If your applications require you to measure both positive and vacuum pressure then these compound gauges do not compromise accuracy and provide you with the same high accuracy specification on both positive and vacuum pressures. We offer a wide variety up to 300 psi (20 bar). If a higher range is requried, just contact us and we can likely customize one to meet your need. We also offer absolute pressure sensors to 5K psi (350 bar) and a full range of differential pressure sensors from ±1 inH2O (±2.5 mbar) to ±300 inH2O (±700 mbar). Are you looking for a pressure gauge to use in hazardous areas? Our ATEX-certified intrinsically safe models (681IS) are designed for pressure measurement in hazardous areas.

Different panel options are available to mount the sensors, refer to our ordering information for back-mounted pressure port and gauge housing designed to fit in a panel. And most recently, we've added the option to do stand-alone data logging with the 681. Now you can record more than 21,000 records internal to the 681 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. The 681 series digital pressure gauges are unmatched in performance and reliability. Best of all, they are very affordable.

Features of the ADT681 Digital Pressure Gauge from Additel

• Pressure ranges to 40,000 psi (2,800 bar)
  0.02% full scale accuracy (681-02)
  0.05% full scale accuracy (681-05)
  0.1% full scale accuracy (681-10)
  0.2% full scale accuracy (681-20)
• Fully temperature compensated accuracy from 14°F to 122°F (-10°C to 50°C)
• IP67 rated: Submersible in 1 meter of water (Model 681IS)
• Up to eleven selectable pressure units
• Large, easy to read display with 5-digit resolution
• Backlit display
• % pressure indication with fan-shaped graph scale for visual reference
• Display flash warning when pressure over 120% of FS
• Bottom mount or panel mount
• ATEX certified intrinsically safe (Model 681IS)
• NIST traceable calibration with data(included)
• 9V battery power or AC adapter (optional)
• Data logging to 21,843 records (includes date, time, pressure and temperature)

681 Digital Pressure Gauge Specifications

Model
ADT681: Regular gauge
ADT681IS: ATEX certified intrinsically safe

Accuracy
681(IS)-02: 0.02% of full scale
681(IS)-05: 0.05% of full scale
681(IS)-10: 0.1% of full scale
681(IS)-20: 0.2% of full scale  

(For detailed accuracy, please see pressure range table)

Gauge Types
Gauge pressure
Compound pressure
Absolute pressure
Differential pressure

Fan-shaped Graph Scale
Similar to analog dials, including pressure swing, 
% indication with fan-shaped graph scale for visual reference, low/high alarm.

Display
Description: 5 full digit FSTN LCD
Display rate: 3 readings per second (Default setting).
Adjustable from 10 readings per second to 1 reading every ten seconds
Numeral display height: 16.5mm (0.65")

Pressure Units
Pa, kPa, MPa, psi, bar, mbar, kgf/cm2, inH2O 4°C mmH2O 4°C, inHg 0°C, mmHg 0°C

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: <95%

Pressure Port
1/4NPT male, 1/4BSP male, M20×1.5 male (=15,000 PSI)
1/4HP female or 1/4HP male(=15,000 PSI)
*1/4HP female: Autoclave F-250-C, 9/16" - 18 UNF-2B 
*1/4HP male: Autoclave M-250-C, 9/16" - 18 UNF-2A
0.236 inch (Ø6 mm) test hose (for differential pressure)
Other connections available per request

Power
Battery: One 9V alkaline battery (included)
Battery life: 300 hours (10 readings/s), 600 hours (3 reading/s), or 6000 hours (1 reading/10s)
Power auto-off: 60 minutes power auto-off. Auto-off may be disable
External power: 110/220V external power adapter (optional)
*(Do not use the external power adapter in a hazardous atmosphere)

Enclosure
Case material: Aluminum alloy
Wetted parts: 316L SS
Dimension: 
Ø110mm X 35mm depth X 176mm height
(panel mount gauge: Ø140mm X 86mm depth)
Weight: 0.6kg

Data Logging 
Data storage: 21,843 records (each record includes date, time, pressure and temperature)
Rate: user-selectable from 1 to 99,999 second intervals

Intrinsic Safety and European Compliance 
CE marked
ATEX certified intrinsically safe (ADT681IS)
*(Rubber boot for ADT681 is not ATEX certified)

Communication: 
RS232     *(Do not use the RS-232 connector in a hazardous atmosphere)

Warranty: 1 year

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To contact Procon Instrument Technology about Additel Digital Pressure Gauges | ADT681 series use Get a quote.