Additel 681 Datasheet

Additel 681
Digital Pressure Gauges

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

Pressure / Process Calibration EquipmentAdditel Datasheet 2014 / 2015

Panel mount gauges are available

Intrinsically safe version (681IS)

Data logging option

OVERVIEW

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 coefcients 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 inH
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 specication 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 inH

pressure gauge to use in hazardous areas? Our ATEX-certied 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 t 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.

Now with Data Logging!

Gauge pressure Differential pressure

O (±2.5 mbar) to 40K psi (2,800 bar) and everything in between.

2

O (±2.5 mbar) to ±300 inH2O (±700 mbar). Are you looking for a

2

FEATURES

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

0.025% 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

Corporate Headquarters

22865 Savi Ranch Parkway Ste F
Yorba Linda, CA 92887, USA

Phone: [phone]
Fax: [phone]
Email: [e-mail]

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

Display ash warning when pressure over 120% of FS

Bottom mount or panel mount

ATEX certied 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)

Salt Lake City Office

802 Bamberger Dr, Suite C
American Fork, UT 84003, USA

Phone: [phone]
Fax: [phone]
Email: [e-mail]

SPECIFICATIONS

Model

ADT681: Regular gauge

ADT681IS: ATEX certied intrinsically safe

Accuracy

681(IS)-02: 0.025% 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

Pressure / Process Calibration EquipmentAdditel Datasheet 2014 / 2015

(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/cm

O@4°C, inHg@0°C, mmHg@0°C

mmH

2

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)

Corporate Headquarters

22865 Savi Ranch Parkway Ste F
Yorba Linda, CA 92887, USA

2

, inH2O@4°C

Phone: [phone]
Fax: [phone]
Email: [e-mail]

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 certied intrinsically safe (ADT681IS)

*(Rubber boot for ADT681 is not ATEX certied)

Communication: RS232

*(Do not use the RS-232 connector in a hazardous

atmosphere)

Warranty: 1 year

Pressure Ranges

Gauge Pressure

P/N

V15 -15 -1.0 G 0.025 (0.05, 0.1, 0.2) 3×

GP2 2 0.16 G 0.05 (0.1, 0.2) 3×

GP5 5 0.35 G 0.025 (0.05, 0.1, 0.2) 3×

GP10 10 0.7 G 0.025 (0.05, 0.1, 0.2) 3×

GP15 15 1.0 G, L

GP30 30 2.0 G, L

GP50 50 3.5 G, L 0.025 (0.05, 0.1, 0.2) 3×

GP100 100 7.0 G, L 0.025 (0.05, 0.1, 0.2) 3×

GP300 300 20 G, L 0.025 (0.05, 0.1, 0.2) 3×

GP500 500 35 G, L 0.025 (0.05, 0.1, 0.2) 3×

GP600 600 40 G, L 0.025 (0.05, 0.1, 0.2) 3×

GP1K 1,000 70 G, L 0.025 (0.05, 0.1, 0.2) 3×

GP2K 2,000 140 G, L 0.025 (0.05, 0.1, 0.2) 3×

GP3K 3,000 200 G, L 0.025 (0.05, 0.1, 0.2) 3×

GP5K 5,000 350 G, L 0.025 (0.05, 0.1, 0.2) 3×

GP10K 10,000 700 G, L 0.025 (0.05, 0.1, 0.2) 3×

GP15K 15,000 1,000 G, L 0.05 (0.1,0.2) 2×

GP25K 25,000 1,600 G, L 0.1 (0.2) 1.5×

GP30K 30,000 2,000 G, L 0.1 (0.2) 1.5×

GP36K 36,000 2,500 G, L 0.1 (0.2) 1.5×

GP40K 40,000 2,800 G, L 0.1 (0.2) 1.1×

Note: [1]. Sealed gauge pressure for above 1000 psi

[2]. G=Gas, L=Liquid

[3]. 0.025% FS for gas media only

Salt Lake City Office

802 Bamberger Dr, Suite C
American Fork, UT 84003, USA

[1]

Pressure Range

(psi) (bar)

M e d i a

Accuracy(%FS)

[2]

[3]

0.025 (0.05, 0.1, 0.2) 3×

[3]

0.025 (0.05, 0.1, 0.2) 3×

Phone: [phone]
Fax: [phone]
Email: [e-mail]

Pressure

Burst