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681 Digital Pressure Gauge

ADT681 Digital Pressure Gauge by Additel in Australia

With advanced microprocessor technology and state of the art silicon pressure sensors, the Additel ADT681 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 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. 

CE EX ATEX certified.

 

 

 

 

Overview
Features
Specifications
Pressure Range
Ordering
Video Demo
Download

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


 P/N   Pressure Range  Media [2] Accuracy (%FS)  Burst Pressure
 (psi)  (bar)
 V15  -15   -1.0 G 0.02 (0.05, 0.1, 0.2) 3x
 GP2 2 0.16 G 0.05 (0.1, 0.2) 3X
 GP5 5 0.35 G 0.05 (0.1, 0.2) 3x
 GP10 10 0.7 G 0.05 (0.1, 0.2) 3x
 GP15 15 1.0 G, L [3] 0.02 (0.05, 0.1, 0.2) 3x
 GP30 30 2.0 G, L [3] 0.02 (0.05, 0.1, 0.2) 3x
 GP50 50 3.5 G, L 0.02 (0.05, 0.1, 0.2) 3x
 GP100 100 7.0 G, L 0.02 (0.05, 0.1, 0.2) 3x
 GP300 300 20 G, L 0.02 (0.05, 0.1, 0.2) 3x
 GP500 500 35 G, L 0.02 (0.05, 0.1, 0.2) 3x
 GP600 600 40 G, L 0.02 (0.05, 0.1, 0.2) 3x
 GP1K 1,000 70 G, L 0.02 (0.05, 0.1, 0.2) 2x
 GP2K 2,000 140 G, L 0.02 (0.05, 0.1, 0.2) 3x
 GP3K 3,000 200 G, L 0.02 (0.05, 0.1, 0.2) 3x
 GP5K 5,000 350 G, L 0.02 (0.05, 0.1, 0.2) 3x
 GP10K 10,000 700 G, L 0.02 (0.05, 0.1, 0.2) 2x
 GP15K 15,000 1,000 G, L 0.05 (0.1, 0.2) 2x
 GP20K 20,000 1,400 G, L 0.05 (0.1, 0.2) 1.5x
 GP25K 25,000  1,600  G, L 0.1 (0.2) 1.5x
 GP30K 30,000 2,000 G, L 0.1 (0.2) 1.5x
 GP36K 35,000 2,500 G, L 0.1 (0.2) 1.5x
 GP40K 40,000 2,800 G, L 0.1 (0.2) 1.1x
 
Compound Pressure
 P/N   Pressure Range  Media Accuracy (%FS)  Burst Pressure
 (psi)  (bar)
 CP2 ±2 ±0.16 G 0.05 (0.1, 0.2) 3x
 CP5 ±5 ±0.35 G 0.02 (0.05, 0.1, 0.2) 3x
 CP10 ±10 ±0.7 G 0.02 (0.05, 0.1, 0.2) 3x
 CP15 ±15 ±1 G 0.02 (0.05, 0.1, 0.2) 3x
 CP30 -15 to 30 -1 to 2 G 0.02 (0.05, 0.1, 0.2) 3x
 CP100 -15 to 100 -1 to 7 G, L 0.02 (0.05, 0.1, 0.2) 3x
 CP300 -15 to 300 -1 to 20 G, L 0.02 (0.05, 0.1, 0.2) 3x
 
Absolute Pressure
 P/N   Pressure Range  Media Accuracy (%FS)  Burst Pressure
 (psi)  (bar) 
 AP5  5  0.35 G  0.1 (0.2) 3x
 AP10 10  0.7   0.1 (0.2)  3x 
 AP15 15  1.0   0.1 (0.2)  3x 
 AP30 30  2.0   0.1 (0.2)  3x 
 AP50 50  3.5   0.1 (0.2)  3x 
 AP100 100  7.0  G, L   0.1 (0.2)  3x 
 AP300 300  20  G, L   0.05 (0.1, 0.2)  3x 
 AP500 500  35  G, L    0.05 (0.1, 0.2) 3x 
 AP1K 1,000  70  G, L   0.05 (0.1, 0.2)  2x 
 AP3K 3,000  200  G, L   0.05 (0.1, 0.2)  3x 
 AP5K 5,000  350  G, L   0.05 (0.1, 0.2)  3x 
  
Differential Pressure
 P/N   Pressure Range  Media Accuracy (%FS)  Burst Pressure Static Pressure Range
 (in H2O)  (mbar)
 DP1 ±1 ±2.5 G 0.05 100x ±10 psi
 DP2 ±2 ±5.0 G 0.05 100x ±10 psi
 DP5 ±5 ±10 G 0.05 50x ±10 psi
 DP10 ±10 ±25 G 0.05 20x ±10 psi
 DP20 ±20 ±50 G 0.05 20x ±10 psi
 DP30 ±30 ±75 G 0.05 15x ±10 psi
 DP50 ±50 ±160 G 0.05 3x ±10 psi
 DP150 ±150 ±350 G 0.02 (0.05) 3x 50 psi
 DP300 ±300 ±700 G 0.02 (0.05) 3x 50 psi
 Note:  [1] Sealed gauge pressure for above 1,000psi  
            [2] G = Gas, L = Liquid (Please specify media type when ordering)
           [3] 0.02% FS for gas media only

Additel ADT681 Order Info website

ACCESSORIES [included]

Description  Qty 
 Rubber Boot (except panel mount and 681IS guages) 1 pc
 9V Alkaline Battery 1 pc
 Manual 1 pc
 NIST traceable Calibration Certificate 1 pc

 

ACCESSORIES [optional]

Code  Description 
 9812  110V/220V external power adaptor (DC 9V) for 681 digital pressure gauge
 9502  Additel/Log II real time data logging and graphical software for 681 and 672
 9506  Additel/PCal pressure calibration softward
 9050  USB to RS232 (DB9/M) Adaptor
 9900-681  Carrying case for one 681 digital pressure gauge

 

 

Logging Setup

 

ADT681 Digital Pressure Gauge Specification Sheet Download

To view all the information on the Budenberg Standard Test Pressure Gauge you can download the data sheet here

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