Additel ADT 681 Digital Pressure Gauges

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Manufacturer: ADDITEL

Choose Your Model

Intrinsically Safe:
Pressure Type:
Pressure Range:
Range Type:
Accuracy:
Pressure Port Type:
Mounting Style:
Data Logging:

Options

* denotes required field

Optional Accessories

USB to RS232 (DB9/M) Adapter (+ $118.00)

Carrying Case for one ADT681 digital pressure gauge (+ $143.00)

PCAL Pressure Range Software for ADT681 and ADT672 (+ $736.00)

Additel/Log II Software, real time logging and graphical software for Additel 680W, 681 and Additel 672 (+ $416.00)

Certification Options*

NIST traceable calibration certificate (Included)

Calibration, NIST traceable calibration for Additel 681 or 680 series gauges (≤ 10000 psi)e (+ $268.00)

Calibration, NIST traceable calibration for Additel 681 or 680 series gauges (> 10000 psi) (+ $322.00)

Calibration, NVLAP or A2LA 17025 Accredited Calibration for Additel 681 or 680 series gauges (≤10000 psi) (+ $449.00)

Calibration, NVLAP or A2LA 17025 Accredited Calibration for Additel 681 or 680 series gauges (>10000 psi) (+ $449.00)

Quantity:

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Additel ADT 681/ ADT 681IS Digital Pressure Gauges
Pressure ranges to 40,000 psi (2,800 bar) and fully temperature compensated accuracy

Accessories (included)
-9V alkaline battery (1 pc)
-manual
-NIST traceable calibration certificate

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.

Do your applications require you to measure both positive and vacuum pressure? Our 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 you need a higher range, 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.

If you need to panel mount our sensors, we offer the option (see ordering information) for a 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:

• Pressure ranges to 40,000 psi (2800 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)

• 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)

Applications:

• Precision pressure measurement

• Field gauge calibration

• Pressure safety valve (PSV) testing

• Pressure regulator testing

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

• Pressure Ranges

• Pressure Units

Pa, kPa, MPa, psi, bar, mbar, kgf/cm², inH₂O@4℃, mmH₂O@4℃, inHg@0℃, mmHg@0℃

• 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)

*0.025%FS accuracy guaranteed only over the ambient temperature range of 68°F to 79°F (20°C to 26°C)

Storage Temperature: -4°F to 158°F (-20°C to 70°C)

Humidity: <95%

• Media Compatibility

0 – 30 psi: Clean dry non-corrosive gases

50 – 36,000 psi: media compatible with 316L SS

• Pressure Port

1/4” NPT male, 1/4” BSP male, M20×1.5 male (≤15,000 PSI)

1/4” HP female or 1/4” HP male(＞15,000 PSI)

1/4"HP female: Autoclave F-250-C, 9/16" - 18 UNF-2B
1/4"HP male: Autoclave M-250-C, 9/16" - 18 UNF-2A

0.156 inch (Ø4 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: Φ110mm X 35mm depth X 176mm height
(panel mount gauge: Φ140mm X 86mm depth)

Weight: 0.6kg

• Intrinsic Safety and European Compliance

CE marked

ATEX certified intrinsically safe (ADT 681IS)

• Communication

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

• Warranty

1 year

ADT681IS series pressure gauges will not include the rubber boot as the boot is not ATEX certified.


	View the Data/Spec Sheet.	Don't have Reader?
	View the Manual.
	Understanding Accuracy Specifications.

View the Additel Catalog

View the Gauge Display Resolution Table

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