ADT681 Digital Test Gauge (Now with IECEX)

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Manufacturer: ADDITEL

The Additel ADT681 digital pressure gauges, provide an accurate, reliable and economical solution for a wide range of pressure applications. With accuracy choices of 0.2, 0.1, 0.05 and 0.02 % of full scale or 0.1% reading and pressure ranges from Vacuum to 420 MPa, there are options to meet all budgets and service needs.

 

The ADT681 has options for measuring gauge, compound, differential, absolute and barometric pressure.

 

Variants include IP67 IECEx intrinsically safe (ADT681IS), data logging and panel mount ensuring you can select a gauge to meet your requirements.

 

Download Free Additel/Land Software Here

 

  • Features
  • Specifications
  • Applications
  • Videos
  • Download
  • Choice of accuracy levels 0.2%, 0.1%, 0.05% & 0.02% FS or 0.1% RDG
  • Pressure ranges up to 420 MPa (60,000 PSI)
  • Suitable for gauge pressure, compound pressure & absolute pressure
  • Selectable engineering units
  • Large back-lit easy to read display
  • % pressure indication with fan shaped graph scale for visual reference
  • Display flash warning when pressure over 120% of FS
  • IECEx certified model available
  • ISO 17025 accredited calibration certificate included

General Specifications

Model

ADT681

ADT681IS

Description

Digital Pressure Gauge

Intrinsically Safe Digital Pressure Gauge

Intrinsic Safety
&
European Compliance

CE marked    

CE marked

IECEx

EX ia IIC T4 Ga

TUR 16.0023X

Accuracy
(For detailed accuracy,
please see pressure range table)

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

681(IS)-RD:  0% to 20% of Range: 0.02% of full scale 20% to 110% of Range: 0.1% of reading
Vacuum: 0.25% of full scale [1][2]

Gauge Types

Gauge pressure, compound pressure, absolute pressure, differential pressure, barometric 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: -10°C to 50°C

Operating Temperature: -10°C to 50°C

Storage Temperature: -20°C to 70°C

Humidity: <95%

Pressure Port

≤100 MPa:  1/4NPT male, 1/2NPT male, 1/4BSP male, 1/2BSP male, M20×1.5 male

 >100 MPa:  1/4HP female or 1/4HP male
  *1/4HP female: Autoclave F-250-C, 9/16″ – 18 UNF-2B
  *1/4HP male: Autoclave M-250-C, 9/16″ – 18 UNF-2A

Differential Pressure: Ø6 mm test hose

Other connections available per request

Power

Battery:  One 9V alkaline battery (included)

Battery life:
1. High power mode: 320 hours
2. Low power mode: 300 hours (10 readings/s), 600 hours (3 reading/s), or 4000 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)

Enclosure

Case material: Aluminium alloy

Wetted parts: 316L SS

Dimension: Ø110mm X 35mm depth X 176mm height (panel mount gauge: Ø140mm X 86mm depth)

Weight: 0.6kg

Compliance

Protection Level: IP67(available for 681IS GP15-60K)

Vibration: 5g (20-2000 Hz)

Shock Resistance: 100g/11ms

Data Logging
(Available on with data logging option ADT681-…-DL)

Data storage: 21,843 records (each record includes date, time, pressure and temperature)

Rate: user-selectable from 1 to 99,999 second intervals

Communication

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

Warranty

1 year

[1] FS = -14.5 psi
[2] Applicable ADT681-RD-CPX

Gauge Pressure [1]

P/N

Pressure Range

Media [2]

Accuracy

Burst
Pressure

psi

bar

% FS

% RD

V15

-15

-1

G

0.02 (0.05, 0.1, 0.2)

N/A

GP2

2

0.16

G

0.05 (0.1, 0.2)

N/A

GP5

5

0.35

G

0.05 (0.1, 0.2)

0.1

GP10

10

0.7

G

0.02 (0.05, 0.1, 0.2)

0.1

GP15

15

1

G, L[3]

0.02 (0.05, 0.1, 0.2)

0.1

GP30

30

2

G, L[3]

0.02 (0.05, 0.1, 0.2)

0.1

GP50

50

3.5

G, L

0.02 (0.05, 0.1, 0.2)

0.1

GP100

100

7

G, L

0.02 (0.05, 0.1, 0.2)

0.1

GP150

150

10

G, L

0.02 (0.05, 0.1, 0.2)

0.1

GP300

300

20

G, L

0.02 (0.05, 0.1, 0.2)

0.1

GP500

500

35

G, L

0.02 (0.05, 0.1, 0.2)

0.1

GP600

600

40

G, L

0.02 (0.05, 0.1, 0.2)

0.1

GP1K

1,000

70

G, L

0.02 (0.05, 0.1, 0.2)

0.1

GP2K

2,000

140

G, L

0.02 (0.05, 0.1, 0.2)

0.1

GP3K

3,000

200

G, L

0.02 (0.05, 0.1, 0.2)

0.1

GP5K

5,000

350

G, L

0.02 (0.05, 0.1, 0.2)

0.1

GP10K

10,000

700

G, L

0.02 (0.05, 0.1, 0.2)

0.1

GP15K

15,000

1,000

G, L

0.05 (0.1,0.2)

0.1

GP20K

20,000

1,400

G, L

0.05 (0.1,0.2)

N/A

1.5×

GP25K

25,000

1,600

G, L

0.1 (0.2)

N/A

1.5×

GP30K

30,000

2,000

G, L

0.1 (0.2)

N/A

1.5×

GP36K

36,000

2,500

G, L

0.1 (0.2)

N/A

1.5×

GP40K

40,000

2,800

G, L

0.1 (0.2)

N/A

1.35×

GP50K

50,000

3,500

G, L

0.1 (0.2)

N/A

1.2×

GP60K

60,000

4,200

G, L

0.1 (0.2)

N/A

1.1×

[1] Sealed gauge pressure for above 1,000 psi
[2] G=Gas, L=Liquid                                
[3] 0.02% FS for gas media only

Barometric Pressure

P/N

Pressure Range

Media

Accuracy

Burst
Pressure

Low

High

BP

60 kPa

110 kPa

G

40 Pa

 

Absolute Pressure

P/N

Pressure Range

Media[1]

Accuracy(%FS)

Burst
Pressure

psi

bar

AP5

5

0.35

G

 0.1 (0.2)

 AP10

10

0.7

G

0.1 (0.2)

 AP15

15

1

G

0.1 (0.2)

 AP30

30

2

G

0.1 (0.2)     

 AP50

50

3.5

G

0.1 (0.2)

AP100

100

7

G, L

0.05 (0.1, 0.2)

AP300

300

20

G, L

0.05 (0.1, 0.2)

AP500

500

35

G, L

0.05 (0.1, 0.2)

 AP1K

1,000

70

G, L

0.05 (0.1, 0.2)

AP3K

3,000

200

G, L

0.05 (0.1, 0.2)

 AP5K

5,000

350

G, L  

0.05 (0.1, 0.2)

 [1] G=Gas, L=Liquid

Differential Pressure

P/N

Pressure Range

Media

Accuracy
(%FS)[1]

Burst
Pressure

Static
Pressure
Range

(inH2O)

(mbar)

DP1

±1

±2.5

G

0.05[2]

100×

±10 psi

DP2

±2

±5.0

G

0.05[2]

100×

±10 psi

DP5

±5

±10

G

0.05[2]

50×

±10 psi

DP10

±10

±25

G

0.05[2]

20×

±10 psi

DP20

±20

±50

G

0.05

20×

±10 psi

DP30

±30

±75

G

0.05

20×

±10 psi

DP50

±50

±160

G

0.05

±10 psi

DP150

±150

±350

G

0.02 (0.05)

50 psi

DP300

±300

±700

G

0.02 (0.05)

50 psi

[1] FS specification applies to the span of the range. Accuracy includes one year stability.
[2] 0.05%FS accuracy (incl 6 months stability). One year accuracy is 0.05%FS calibration accuracy combined with 0.05%FS one year stability.  

Compound Pressure

P/N

Pressure Range

Media[1]

Accuracy
(%FS)[1]

Burst
Pressure

psi

bar

%FS[2]

%RD

CP2

±2

±0.16

G

0.05 (0.1,0.2)

N/A

CP5

±5

±0.35

G

0.02 (0.05,0.1,0.2)

0.1

CP10

±10

±0.7

G

0.02 (0.05,0.1,0.2)

0.1

CP15

±15

±1

G

0.02 (0.05,0.1,0.2)

0.1

CP30

-15 to 30

-1 to 2

G

0.02 (0.05,0.1,0.2)

0.1

CP100

15 to 100

1 to 7

G, L

0.02 (0.05,0.1,0.2)

0.1

CP300

15 to 300

1 to 20

G, L

0.02 (0.05,0.1,0.2)

0.1

[1] G=Gas, L=Liquid
[2] FS specification applies to the span of the range

  • Precision pressure measurement
  • Field gauge and switch calibration
  • Pressure safety valve (PSV) testing
  • Pressure regulator testing
  • Hydrotesting
  • Gas pressure testing
  • Pressure data logging