ADT760A-LLP

Automatic Handheld Pressure Calibrator

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A portable automated pressure calibrator in the palm of your hand? This could be the most exciting pressure calibrator!

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The Additel 760A is a high-performance automatic handheld pressure calibrator designed for precision and portability in the field. Weighing less than 4 lbs (1.8 kg), this integrated device replaces bulky manual pumps with a built-in electric pump, internal controller, and a precision pressure sensor. Optimized for instrumentation technicians, the ADT760A offers a seamless user interface via a new capacitive touch screen, allowing users to generate and control pressure by simply entering the desired setpoint. With four distinct channels, including internal pressure, external pressure (2 channels) and electrical measurement, it serves as a comprehensive tool for pressure calibration and maintenance of critical process infrastructure.

Engineered to enhance workflow efficiency, the ADT760A introduces significant technical upgrades over its predecessor, including an upgraded range (375 psi), an improved touch screen, a full-capability HART field communicator, and a non-PC version option (ADT760S). A new accessory is also available: an attachable Contamination Prevention System to protect internal components. This multifunction documenting process calibrator supports automated task documentation and data logging, reducing the need for manual record-keeping, as well as HART communication capabilities for advanced pressure sensors. Whether performing routine transmitter calibrations or complex field diagnostics, the Additel 760A provides a robust, automated solution that bridges the gap between lab-grade accuracy and rugged field reliability.

Features
• Automated pressure generation and control to 375 psi (25 Bar)
• Fully automatic pressure calibrator with built-in pump
• Pressure ranges from ±30 inH2O up to 375 psi
• Accuracy as low as 0.01%FS
• Swappable pressure module for alternate ranges
• HART field communicator (optional)
• Non-PC version available (ADT760S)
• Less than 4 lbs (1.8 kg) for handheld operation
• Bluetooth, Wi-Fi, and USB communications
• Data logging and Task functionality
• Contamination Prevention System (optional)
• Support for external pressure modules (dual-channel)

Models

ADT760A/760S-LLP
The 760A/760S-LLP is designed for low pressure calibration and comes with a built-in pressure module of your choice. The maximum range module compatible with the 760A/760S-LLP is ±30 inH2O (±75 mbar) and provides an accuracy to 0.05%FS (see ordering information for available configurations). Additional internal pressure modules (ADT155) are available, with ranges down to ±0.25 inH2O (±0.62 mbar). Measurements can be made in gauge or differential mode.
ADT760A/760S-D
The760A/760S-D gives you differential and gauge pressure, but at a higher pressure range than the 760A/760S-LLP. Spanning a range of -12.5 to 35 psi (-0.86 to 2.5 bar) and with an accuracy up to 0.01%FS, the 760A/760S-D is an ideal solution to cover common gauge and differential pressure measurements. The Additel 760A/760S-D comes with an internal module of your choice, with maximum pressure to 35 psi. Lower pressure configurations down to ±10 inH2O differential can be purchased to improve accuracy at lower pressures.
ADT760A/760S-MA
The 760A/760S-MA generates and controls pressure from vacuum pressures up to 375 psig (25 bar.g) with an accuracy up to 0.01%FS. Equipped with a built-in barometric reference, each unit can switch between gauge and absolute pressure types. A variety of internal sensors (ADT155) are available which offer lower pressure ranges for improved performance.
The data logging capability is only available on the ADT760A models. Please see the selection guide here for more info.

_Features	^Model	760A/760S-LLP	760A-LLP-DL	760A/760S-D	760A-D-DL	760A/760S-MA	760-MA-DL
Pressure Range^[1]		±30 in H2O (±75 mbar)	±30 in H2O (±75 mbar)	-12.5 to 35 psi (-0.86 to 2.5 bar)	-12.5 to 35 psi (-0.86 to 2.5 bar)	-12.5 to 375 psig (-0.86 to 25 bar)	-12.5 to 375 psig (-0.86 to 25 bar)
Accuracy (%FS)		0.05^[1]	0.05^[1]	0.01%FS or 0.02%FS^[1]	0.01%FS or 0.02%FS^[1]	0.01%FS or 0.02%FS^[1][3]	0.01%FS or 0.02%FS^[1][3]
Stability (%FS)		0.005^[2]	0.005^[2]	0.005^[2]	0.005^[2]	0.005^[2]	0.005^[2]
Gauge Pressure		•	•	•	•	•	•
Differential Pressure		•	•	•	•
Absolute Pressure						•	•
Barometric Pressure						•	•
Removable Internal Module		•	•	•	•	•	•
External Pressure Module		•	•	•	•	•	•
Temperature Compensated		•	•	•	•	•	•
Built-in Electrical Pump		•	•	•	•	•	•
Built-in Filter		•	•	•	•	•	•
Built-in Liquid Trap		•	•	•	•	•	•
Source/Simulate 24 mA		• ADT760A only	•	• ADT760A only	•	• ADT760A only	•
Measure mA or V		• ADT760A only	•	• ADT760A only	•	• ADT760A only	•
24V Loop power		• ADT760A only	•	• ADT760A only	•	• ADT760A only	•
Pressure switch test		• ADT760A only	•	• ADT760A only	•	• ADT760A only	•
HART Communication			•		•		•
Task Documentation			•		•		•
Data Logging			•		•		•
Channels		4	4	4	4	4	4
Bluetooth, Wi-Fi and USB		•	•	•	•	•	•

[1] FS specification applies to the span of the module range.
[2] Stability based on FS of the internal pressure module. Internal module is switchable.
[3] Specification based on gauge measurement. An additional 55 pa uncertainty will need to be included when measuring in absolute mode.

Pressure Specifications

*Specification*	*760A/760S-LLP*	*760A/760S-D*	*760A/760S-MA*
Max Pressure Range	±30 inH₂O (75 mbar)	-12.5 to 35 psi (-0.86 to 2.5 bar)	-12.5 to 375 psig (-0.86 to 25 bar.g)
Accuracy	0.05%FS^[1]	0.01%FS or 0.02%^[1]	0.01%FS or 0.02%FS^[1][3]
Stability	0.005%FS^[2]	0.005%FS^[2]	0.005%FS^[2]
Pressure Type	Differential, Gauge	Differential, Gauge	Gauge, Absolute
Over Range Indication	120%
Resolution	6 digits
Measurement Units	Pa, hPa, kPa, mPa, bar, mbar, psi, mmHg@0°C, cmHg@0°C, mHg@0°C, inHg@0°C, inH₂O@4°C, mmH₂O@4°C, cmH₂O@4°C, mH₂O@4°C, mmH₂O@20°C, cmH₂O@20°C, mH₂O@20°C, mH2O@68°F, inH₂O@20°C, kgf/cm2, mtorr, torr, lb/ ft2, tsi, custom
Barometric Accuracy	N/A	N/A	55 Pa^[4]
Connection	Barb fitting	Hose, 5 ft (1.5 m), with built-in filter to 1/4BSPF, 1/4NPTF, and M20F adapters	Hose, 5 ft (1.5 m), with built-in filter to 1/4BSPF, 1/4NPTF, and M20F adapters
Pressure Output Rate	<30 Seconds (30 inH₂O / 100 ml)	<10 Seconds (35 psi / 5 ml)	<90 Seconds (300 psi / 5 ml)

[1] FS specification applies to the span of the module range.
[2] Stability based on FS of the internal pressure module. Stability is 0.005%FS or 0.05 pa whichever is greater. Internal module is switchable.
[3] Specification based on gauge measurement. An additional 55 pa uncertainty will need to be included when measuring in absolute mode.
[4] 55 Pa uncertainty (k=2) includes calibration uncertainty, linearity, and long-term stability (<30 Pa per year). Barometer range of 60 to 110 kPa.

Electrical Specifications (ADT760A)

Specification	Range	Resolution	Accuracy	Note
mA Measure	± 30 mA	0.0001 mA	0.01%RD + 1.5 μA	Impedance <10 Ω
V Measure	± 30 V	0.0001 V	0.01%RD + 1.5 mV	Impedance >1 MΩ
mA Source	24 mA	0.001 mA	0.01%RD + 1.2 μA	20 mA @ 1 K
Loop Power Source	24 V	N/A	± 1 V	50 mA (Max Loading)
Pressure Switch	Open, close. Support for mechanical switches and NPN/PNP digital switches.
Temperature Compensation	8 °C to 38 °C
Temperature Coefficient	< ± ( 0.001%RD + 0.001%FS ) / °C outside of 8°C to 38°C

Internal Modules Specifications and Compatibility

*Module*	*Module Range*^[6]		*Media*	*Accuracy (%FS)*^[1]	*Burst Pressure*	*760-LLP*	*760-D*	*760-MA*
*Module*	*inH*₂O	*mbar*	*Media*	*Accuracy (%FS)*^[1]	*Burst Pressure*	*760-LLP*	*760-D*	*760-MA*
DP025	±0.25	±0.62	G	0.2^[2]	100x	•
DP050	±0.5	±1.25	G	0.1^[3]	100x	•
DP1	±1	±2.5	G	0.05^[4]	100x	•
DP2	±2	±5	G	0.05^[4]	100x	•
DP5	±5	±10	G	0.05^[4]	50x	•
DP10	±10	±25	G	0.05^[4]	20x	•	•
DP20	±20	±50	G	0.05	20x	•	•
DP30	±30	±75	G	0.05	20x	•	•
DP50	±50	±125	G	0.05	3x		•
DP100	±100	±250	G	0.02	3x		•
DP150	±150	±350	G	0.02	3x		•
DP300	±300	±700	G	0.02	3x		•
DP400	-380 to 400	-950 to 1K	G	0.02	3x		•
DP800	-380 to 800	-950 to 2K	G	0.02	3x		•
DP1K	-380 to 1K	-950 to 2.5K	G	0.02	3x		•
Gauge Pressure	psig	bar.g
CP10	±10	±0.7	G	0.01 / 0.02^[5]	3x		•	•
CP15	-13.5 to 15	-0.95 to 1	G	0.01 / 0.02^[5]	3x		•	•
CP30	-13.5 to 30	-0.95 to 2	G	0.01 / 0.02^[5]	3x		•	•
CP35	-13.5 to 35	-0.95 to 2.5	G	0.01 / 0.02^[5]	3x		•	•
CP50	-13.5 to 50	-0.95 to 3.5	G	0.01 / 0.02^[5]	3x			•
CP100	-13.5 to 100	-0.95 to 7	G	0.01 / 0.02^[5]	3x			•
CP150	-13.5 to 150	-0.95 to 10	G	0.01 / 0.02^[5]	3x			•
CP200	-13.5 to 200	-0.95 to 14	G	0.01 / 0.02^[5]	3x			•
CP300	-13.5 to 300	-0.95 to 20	G	0.01 / 0.02^[5]	3x			•
CP375	-13.5 to 375	-0.95 to 25	G	0.01 / 0.02^[5]	3x			•
Absolute Pressure	psig	barg
AP15	0 to 15	0 to 1	G	0.01 / 0.02^[5]	3x			•

[1] FS specification applies to the span of the module range. Accuracy includes one-year stability, except for DP025 to DP10 modules.
[2] Accuracy is a 6 months spec, 1-year long-term drift is 0.2%FS.
[3] Accuracy is a 6 months spec, 1-year long-term drift is 0.1%FS.
[4] Accuracy is a 6 months spec, 1-year long-term drift is 0.05%FS.
[5] Specification based on gauge measurement. An additional 55 pa uncertainty will need to be included when measuring in absolute mode. Applicable only for use with the ADT760-MA
[6] The low module pressure range may be outside the pressure range of the calibrator

* ADT155 Pressure Modules are calibrated in psi & inH2O

General Specifications

Specification	Description
Channels	Four total: one electrical, one internal pressure, two external pressure (measure only)
Enclosure IP Rating	IP52 water and dust proof
Battery	Rechargeable Li-Ion battery, typically 10 hours of operation, recharges in less than 4 hours
Display	Color 800 x 480 TFT 5-inch touch screen
Communications	Bluetooth, WiFi and USB
Weight	<4 lbs (<1.8 kg)
Size	9.3 x 4.3 x 2.8 in (235 x 110 x 70 mm)
Certification	ISO 17025 accredited certificate with data included
HART Communications	Optional (ADT760A-X-DL model)
Data Logging	Optional (ADT760A-X-DL model), up to 1,000,000 readings (date and time stamped)
Task Documentation	Optional (ADT760A-X-DL model) up to 1000 tasks
Automation Functions	Switch test, auto step, leak test (Only for ADT760A)
Misuse Protection	Up to 30 V on any two sockets (Only for ADT760A)
Multi Lingual Interface	English, German, French, Italian, Spanish, Portuguese, Chinese, Japanese, and Russian
Pump Life	>500,000 cycles
Power	Rechargeable Li-Ion battery, external power: 110/220 V power adapter 10 V
Environment Specifications	Operation: 32°F to 122°F (0°C to 50°C), 0-90% RH, less than 3,000 meters Compensated temperature: 32°F to 122°F (0°C to 50°C) Storage temperature: -4°F to 158°F (-20°C to 70°C)
Vibration and Shock	Vibration: 4 g (20 to 2,000 Hz) Shock: 8 g
Compliance	CE
Software	ACal, Land, LogII
Warranty	1 year
Hose & Filter End of Life	The estimated End of Life (EOL) expectancy for all accessory hoses and filters (pneumatic and hydraulic) is approximately 10 years and should be replaced at the first sign of wear or damage.

Optional Internal Pressure Modules

Module number	Description
ADT155-20-DP025	Pressure module for ADT760A/760S-LLP, ±0.25 inH2O, ±0.2%FS
ADT155-10-DP050	Pressure module for ADT760A/760S-LLP, ±0.5 inH2O, ±0.1%FS
ADT155-05-DP1	Pressure module for ADT760A/760S-LLP, ±1 inH2O, ±0.05%FS
ADT155-05-DP2	Pressure module for ADT760A/760S-LLP, ±2 inH2O, ±0.05%FS
ADT155-05-DP5	Pressure module for ADT760A/760S-LLP, ±5 inH2O, ±0.05%FS
ADT155-05-DP10	Pressure module for ADT760A/760S-LLP & -D ±10 inH2O, ±0.05%FS
ADT155-05-DP20	Pressure module for ADT760A/760S-LLP & -D, ±20 inH2O, ±0.05%FS
ADT155-05-DP30	Pressure module for ADT760A/760S-LLP & -D, ±30 inH2O, ±0.05%FS
ADT155-05-DP50	Pressure module for ADT760A/760S-D, ±50 inH2O, ±0.05%FS
ADT155-02-DP100	Pressure module for ADT760A/760S-D, ±100 inH2O, ±0.02%FS
ADT155-02-DP150	Pressure module for ADT760A/760S-D, ±150 inH2O, ±0.02%FS
ADT155-02-DP300	Pressure module for ADT760A/760S-D, ±300 inH2O, ±0.02%FS
ADT155-02-DP400	Pressure module for ADT760A/760S-D, -380 to 400 inH2O (-13.5 to 15 psi), ±0.02%FS
ADT155-02-DP800	Pressure module for ADT760A/760S-D, -380 to 800 inH2O (-13.5 to 30 psi), ±0.02%FS
ADT155-02-DP1K	Pressure module for ADT760A/760S-D, -380 to 1K inH2O (-13.5 to 35 psi), ±0.02%FS
ADT155-01/02-CP10	Pressure module for ADT760A/760S & -MA, ±10 psi, ±0.01%FS, ±0.02%FS
ADT155-01/02-CP15	Pressure module for ADT760A/760S & -MA, -13.5 to 15 psi, ±0.01%FS, ±0.02%FS
ADT155-01/02-CP30	Pressure module for ADT760A/760S & -MA, -13.5 to 30 psi, ±0.01%FS, ±0.02%FS
ADT155-01/02-CP35	Pressure module for ADT760A/760S & -MA, -13.5 to 35 psi, ±0.01%FS, ±0.02%FS
ADT155-01/02-CP50	Pressure module for ADT760A/760S & -MA, -13.5 to 50 psi, ±0.01%FS, ±0.02%FS
ADT155-01/02-CP100	Pressure module for ADT760A/760S-MA, -13.5 to 100 psi, ±0.01%FS, ±0.02%FS
ADT155-01/02-CP150	Pressure module for ADT760A/760S-MA, -13.5 to 150 psi, ±0.01%FS, ±0.02%FS
ADT155-01/02-CP200	Pressure module for ADT760A/760S-MA, -13.5 to 200 psi, ±0.01%FS, ±0.02%FS
ADT155-01/02-CP300	Pressure module forADT760A/760S-MA, -13.5 to 300 psi, ±0.01%FS, ±0.02%FS

* ADT155 Pressure modules are calibrated in psi & inH2O

Documents:

Filename	Upload date	Size
Additel 760A/760S Automatic Handheld Pressure Calibrator Datasheet	2026.3.04	1 MB
Additel 760 Automatic Handheld Pressure Calibrator User Manual	2025.5.01	3.6 MB
Additel 760 Series Firmware Update Information	2018.3.25	0.2 MB
Additel 760 Battery MSDS	2020.6.11	2.6 MB

Update Packages:

Filename	Upload date	Size
Additel 760 Firmware Update Package	2024.4.23	5.9 MB
AMS Driver	2023.6.01	12.0 MB