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Pressure / Process Calibration Equipment

Additel 681
Digital Pressure Gauges

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Pressure ranges to 40,000 psi (2,800 bar)
0.025%, 0.05%, 0.1% or 0.2% FS accuracy
% pressure indication with fan-shaped graph
scale for visual reference
Fully temperature compensated accuracy
Panel mount gauges are available
Intrinsically safe version (681IS)
Data logging option
Gauge pressure

OVERVIEW

Differential pressure

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 provides 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 standalone 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
0.025% full scale accuracy (681-02)

% pressure indication with fan-shaped graph scale for
visual reference

0.05% full scale accuracy (681-05)

Display flash warning when pressure over 120% of FS

0.1% full scale accuracy (681-10)

Bottom mount or panel mount

0.2% full scale accuracy (681-20)

ATEX certified intrinsically safe (Model 681IS)

Fully temperature compensated accuracy from
14°F to 122°F (-10°C to 50°C)

NIST traceable calibration with data(included)

Up to eleven selectable pressure units

Data logging to 21,843 records (includes date, time,
pressure and temperature)

Additel Datasheet 2014 / 2015

Pressure ranges to 40,000 psi (2,800 bar)

Large, easy to read display with 5-digit resolution

9V battery power or AC adapter (optional)

Backlit display
Corporate Headquarters
22865 Savi Ranch Parkway Ste F
Yorba Linda, CA 92887, USA

Phone: 714-998-6899
Fax: 714-998-6999
Email: sales@additel.com

Salt Lake City Office
802 Bamberger Dr, Suite C
American Fork, UT 84003, USA

Phone: 801-756-5570
Fax: 714-998-6999
Email: sales@additel.com