The Additel ADT 760A-D Automatic Pressure Calibrator is a compact, fully automatic handheld pressure calibrator designed for precise differential and gauge pressure calibration. With an integrated electric pressure pump, automatic pressure control, interchangeable internal pressure modules and comprehensive electrical measurement capabilities, the ADT 760A-D combines pressure generation, pressure measurement and process signal measurement in one portable instrument.
The ADT 760A-D generates and controls pressure over a maximum range of:
-12.5 to 35 psi
or:
-0.86 to 2.5 bar
Depending on the installed interchangeable ADT155 pressure module, pressure accuracy is available as:
0.01 % FS or 0.02 % FS
with a pressure control stability of:
0.005 % FS
The ADT 760A-D supports both gauge pressure and differential pressure measurement and is particularly suitable for calibration of differential pressure transmitters, pressure transmitters, pressure switches, digital pressure gauges and other process instrumentation.
Unlike a conventional combination of hand pump, reference pressure gauge and electrical calibrator, the Additel ADT 760A-D integrates these functions into a handheld instrument weighing approximately 1.8 kg.
The europascal calibration service provides professional calibration solutions for pressure calibrators, pressure controllers, digital pressure gauges, pressure modules, transmitters and other pressure measuring equipment.
Your Benefits at a Glance
The Additel ADT 760A-D Automatic Pressure Calibrator provides:
- Fully automatic handheld pressure calibration
- Integrated electric pressure pump
- Automatic pressure generation and control
- Pressure range from -0.86 to 2.5 bar
- Pressure range from -12.5 to 35 psi
- Gauge pressure measurement
- Differential pressure measurement
- Accuracy up to 0.01 % FS
- 0.005 % FS pressure control stability
- Interchangeable internal ADT155 pressure modules
- Two external pressure measurement channels
- Electrical measurement and source functions
- mA measurement
- Voltage measurement
- mA source
- 24 V loop power
- Pressure switch testing
- Automatic step functions
- Leak testing
- 4.95-inch color touchscreen
- Bluetooth communication
- Wi-Fi communication
- USB communication
- Rechargeable Li-ion battery
- Approx. 10 hours typical battery operation
- Compact weight of approximately 1.8 kg
- Optional contamination prevention system
- Optional data logging and HART communication with the corresponding DL configuration
Automatic Pressure Generation from -0.86 to 2.5 bar
The Additel ADT 760A-D is designed specifically for gauge and differential pressure calibration.
Its maximum pressure generation and control range is:
-0.86 to +2.5 bar
corresponding to:
-12.5 to +35 psi
The negative pressure capability allows the calibrator to generate vacuum relative to atmospheric pressure, while positive pressure can be automatically generated up to 2.5 bar.
This bidirectional pressure capability makes the ADT 760A-D particularly useful for process instrumentation and differential pressure applications.
Fully Automatic Pressure Generation
One of the major advantages of the Additel ADT 760A-D is its integrated automatic pressure generation.
A conventional field calibration setup may require:
- Manual pressure pump
- Reference pressure gauge
- Pressure adjustment valve
- Electrical process calibrator
- Test leads
- Pressure tubing
The ADT 760A-D combines many of these functions into one compact instrument.
The user enters the desired pressure setpoint and the internal electric pump and pressure controller automatically generate and regulate the required pressure.
This significantly reduces manual pumping and fine adjustment during repetitive calibration procedures.
Pressure Accuracy up to 0.01 % FS
Depending on the installed interchangeable ADT155 internal pressure module, the ADT 760A-D provides pressure accuracy of:
0.01 % FS
or:
0.02 % FS
FS refers to the span of the selected pressure module.
This modular approach allows the internal pressure measurement range to be selected according to the actual application.
Using a lower-range pressure module can improve the absolute measurement performance when calibrating instruments significantly below the maximum 2.5 bar pressure capability.
Pressure Control Stability
The specified pressure stability is:
0.005 % FS
The stability specification is based on the full scale of the installed internal pressure module.
Stable pressure control is particularly important during automated calibration because the device under test should be evaluated only after the reference pressure has reached a sufficiently stable condition.
Gauge and Differential Pressure
The Additel ADT 760A-D supports:
Gauge pressure
and:
Differential pressure
This distinguishes the D version from the MA version of the ADT760A family.
Differential pressure capability is especially useful for calibration of instruments such as:
- Differential pressure transmitters
- Low-pressure transmitters
- Filter monitoring instruments
- Flow transmitters using differential pressure
- Pressure switches
- Process pressure instruments
Interchangeable ADT155 Pressure Modules
The ADT 760A-D uses interchangeable internal pressure modules from the Additel ADT155 series.
This provides an important advantage over instruments with only one permanently installed measuring range.
The internal module can be selected according to the pressure range and required accuracy.
The maximum module compatible with the ADT 760A-D supports pressure up to:
35 psi / 2.5 bar
Lower pressure configurations are also available.
For improved performance at lower differential pressures, configurations down to approximately:
±10 inH₂O
can be selected.
This allows the same ADT 760A-D platform to be adapted to different calibration tasks.
Pressure Measurement Resolution
The pressure display provides:
6-digit resolution
A wide selection of pressure units is supported, including:
- Pa
- hPa
- kPa
- MPa
- bar
- mbar
- psi
- mmHg
- cmHg
- inHg
- inH₂O
- mmH₂O
- cmH₂O
- kgf/cm²
- torr
- Custom units
This allows the calibrator to be adapted easily to different industrial and laboratory applications.
Integrated Electrical Measurement
In addition to pressure generation and measurement, the Additel ADT 760A-D provides integrated electrical process calibration functions.
This makes it possible to evaluate both the pressure input and electrical output of a pressure transmitter using one instrument.
Current Measurement
The ADT 760A-D measures:
±30 mA
with a resolution of:
0.0001 mA
and an accuracy of:
0.01 % of reading + 1.5 µA
This is particularly useful for calibration of conventional:
4–20 mA pressure transmitters
Voltage Measurement
The calibrator can measure voltage over a range of:
±30 V
with a resolution of:
0.0001 V
The specified voltage measurement accuracy is:
0.01 % of reading + 1.5 mV
This provides additional flexibility for process instrumentation and sensor calibration.
Current Source
The ADT 760A-D can also source current up to:
24 mA
with a resolution of:
0.001 mA
This allows the instrument to simulate process current signals when testing control systems, indicators and other process equipment.
24 V Loop Power
An integrated:
24 V loop power supply
is available for powering process transmitters during calibration.
The maximum load is specified as:
50 mA
This allows a pressure transmitter to be powered and measured directly by the ADT 760A-D without requiring a separate loop power supply.
Pressure Switch Testing
The ADT 760A-D supports automated:
pressure switch testing
Mechanical pressure switches as well as NPN and PNP digital switches are supported.
The calibrator can determine switching points while automatically generating and controlling the applied pressure.
This can considerably simplify pressure switch calibration compared with a completely manual test setup.
Automatic Step Function
The integrated automation functions include:
Auto Step
Pressure points can therefore be approached automatically according to a predefined sequence.
This is useful for calibrations requiring several increasing and decreasing pressure points.
Instead of manually pumping and adjusting each point, the ADT 760A-D automatically generates the requested reference pressures.
Leak Testing
The ADT 760A-D also includes a:
Leak Test
function.
A stable pressure can be generated and the subsequent pressure change monitored over a defined period.
This function is useful for evaluating:
- Pressure connections
- Tubing
- Adapters
- Test setups
- Pressure instruments
before beginning a precision calibration.
Four Measurement Channels
The ADT760A platform provides four channels:
- One internal pressure channel
- Two external pressure measurement channels
- One electrical measurement/source channel
The external pressure channels allow compatible external Additel pressure modules to be connected.
This significantly extends the measurement capability of the handheld calibrator beyond its internal pressure module.
4.95-Inch Touchscreen
The new ADT760A generation features a:
4.95-inch color touchscreen
with a resolution of:
854 × 480 pixels
The capacitive touchscreen provides a modern smartphone-like user interface for setting pressure values, configuring calibration functions and viewing measurement results.
The interface supports multiple languages, including:
- English
- German
- French
- Italian
- Spanish
- Portuguese
- Chinese
- Japanese
- Russian
Bluetooth, Wi-Fi and USB
The Additel ADT 760A-D supports modern communication interfaces including:
Bluetooth
Wi-Fi
and:
USB
These communication options allow the instrument to be integrated into digital calibration and documentation workflows.
Compatible Additel software includes solutions such as ACal, Land and LogII.
Optional HART Communication
For applications requiring communication with intelligent process transmitters, Additel offers the corresponding:
ADT 760A-D-DL
configuration.
The DL version adds a full:
HART field communicator
This allows direct communication with compatible HART transmitters.
HART capability is particularly valuable when commissioning, configuring, diagnosing and calibrating smart pressure transmitters.
Optional Data Logging and Tasks
The corresponding DL configuration also provides data logging and task documentation.
Data logging capacity is up to:
1,000,000 readings
with date and time information.
Task documentation supports up to:
1,000 tasks
These functions are particularly useful for organized field calibration and digital documentation workflows.
Optional Contamination Prevention System
A new optional Contamination Prevention System (CPS) is available for the ADT760A series.
The CPS is designed to help protect the internal pneumatic components from contamination entering through connected devices or pressure lines.
This can be particularly useful when calibrating process instruments that may contain:
- Oil
- Moisture
- Dirt
- Process residues
- Other contaminants
Protecting the internal pneumatic system can reduce maintenance requirements and improve long-term reliability.
Portable Handheld Design
Despite integrating a pressure pump, controller, pressure measurement system and electrical process calibrator, the ADT 760A-D weighs approximately:
1.8 kg / 4 lb
Dimensions are approximately:
235 × 110 × 70 mm
This compact format makes the ADT 760A-D particularly suitable for field calibration and maintenance work.
Rechargeable Battery
The instrument uses a rechargeable:
Li-ion battery
Typical operating time is approximately:
10 hours
and charging time is less than:
4 hours
This allows the ADT 760A-D to be used throughout a typical working day without permanent connection to an external power supply.
Robust Design for Field Calibration
The enclosure is rated:
IP52
The specified operating conditions are:
Temperature: 0 to 50 °C
Relative humidity: 0 to 90 % RH
Altitude: below 3,000 m
The instrument is also designed to withstand vibration and shock associated with portable field use.
Long Pump Life
Additel specifies a pump life of more than:
500,000 cycles
This is particularly important for an automatic handheld pressure calibrator because the internal electric pump performs the pressure generation that would otherwise be carried out manually.
ISO/IEC 17025 Accredited Calibration Certificate
The Additel ADT 760A-D is supplied with an:
ISO/IEC 17025 accredited calibration certificate with data
This provides documented metrological traceability for the pressure measurement system.
For ongoing calibration requirements, the europascal calibration service can support professional pressure calibration and calibration management.
Technical Highlights
Model: Additel ADT 760A-D
Device type: Automatic Handheld Pressure Calibrator
Pressure type: Gauge and differential
Pressure range: -0.86 to 2.5 bar
Pressure range: -12.5 to 35 psi
Pressure accuracy: 0.01 % FS or 0.02 % FS depending on module
Pressure stability: 0.005 % FS
Pressure resolution: 6 digits
Pressure generation: Integrated electric pump
Pressure control: Fully automatic
Internal pressure module: Interchangeable ADT155
External pressure channels: 2
Electrical channel: 1
Current measurement: ±30 mA
Voltage measurement: ±30 V
Current source: Up to 24 mA
Loop power: 24 V
Pressure switch test: Yes
Auto Step: Yes
Leak Test: Yes
Display: 4.95-inch color touchscreen
Display resolution: 854 × 480 pixels
Communication: Bluetooth, Wi-Fi, USB
Battery: Rechargeable Li-ion
Typical battery operation: Approx. 10 hours
Weight: Approx. 1.8 kg
Dimensions: Approx. 235 × 110 × 70 mm
Protection: IP52
Pump life: More than 500,000 cycles
HART: Available with ADT 760A-D-DL
Data logging: Available with ADT 760A-D-DL
Technical Data
| Feature | Additel ADT 760A-D |
|---|---|
| Device type | Automatic Handheld Pressure Calibrator |
| Pressure range | -0.86 to 2.5 bar |
| Pressure range | -12.5 to 35 psi |
| Pressure types | Gauge, Differential |
| Accuracy | 0.01 % FS or 0.02 % FS |
| Stability | 0.005 % FS |
| Resolution | 6 digits |
| Internal module | Interchangeable ADT155 |
| Pressure generation | Integrated electric pump |
| Pressure control | Automatic |
| External pressure channels | 2 |
| mA measurement | ±30 mA |
| mA resolution | 0.0001 mA |
| mA accuracy | 0.01 % RD + 1.5 µA |
| Voltage measurement | ±30 V |
| Voltage resolution | 0.0001 V |
| Voltage accuracy | 0.01 % RD + 1.5 mV |
| Current source | Up to 24 mA |
| Loop power | 24 V |
| Switch test | Yes |
| Auto Step | Yes |
| Leak Test | Yes |
| Display | 4.95-inch color touchscreen |
| Display resolution | 854 × 480 |
| Communication | Bluetooth, Wi-Fi, USB |
| Battery | Rechargeable Li-ion |
| Battery operation | Approx. 10 hours |
| Charging time | Less than 4 hours |
| Dimensions | 235 × 110 × 70 mm |
| Weight | Approx. 1.8 kg |
| Protection rating | IP52 |
| Operating temperature | 0–50 °C |
| Pump life | >500,000 cycles |
| HART | ADT 760A-D-DL |
| Data logging | ADT 760A-D-DL |
| Calibration certificate | ISO/IEC 17025 accredited certificate with data |
ADT 760A-D vs. ADT 760A-LLP and ADT 760A-MA
The ADT760A platform is available in three main pressure configurations:
| Model | Pressure Range | Pressure Type |
|---|---|---|
| ADT 760A-LLP | ±75 mbar | Gauge / Differential |
| ADT 760A-D | -0.86 to 2.5 bar | Gauge / Differential |
| ADT 760A-MA | -0.86 to 25 bar | Gauge / Absolute |
The ADT 760A-D occupies the middle range of the ADT760A family.
Compared with the LLP version, it provides significantly higher positive pressure capability. Compared with the MA version, it retains true differential pressure capability.
This makes the ADT 760A-D particularly attractive for process and differential pressure calibration.
Typical Calibration Applications
The Additel ADT 760A-D Automatic Pressure Calibrator is suitable for calibration and testing of:
- Differential pressure transmitters
- Gauge pressure transmitters
- Pressure sensors
- Pressure transducers
- Digital pressure gauges
- Pressure switches
- 4–20 mA pressure transmitters
- Process instrumentation
- Pneumatic measurement equipment
- Differential pressure instruments
Typical users include:
- Professional calibration laboratories
- Process industry
- Pharmaceutical industry
- Chemical industry
- Power generation
- Industrial maintenance
- Quality assurance departments
- Instrument manufacturers
- Field service technicians
Calibration and Service by europascal
Regular calibration of an automatic pressure calibrator is important for maintaining reliable measurement performance.
The europascal calibration service provides professional calibration solutions for pressure calibrators, pressure modules, digital pressure gauges, pressure transmitters and other pressure measuring equipment.
europascal can also provide support with product selection, accessories, calibration, maintenance and integration into professional calibration workflows.
Why Choose the Additel ADT 760A-D?
The Additel ADT 760A-D Precise Automatic Pressure Calibrator combines automatic pressure generation, precision pressure measurement, pressure control and electrical process calibration in one compact handheld instrument.
Its pressure range from -0.86 to 2.5 bar, support for both gauge and differential pressure, accuracy up to 0.01 % FS, interchangeable ADT155 pressure modules and 0.005 % FS control stability make it a versatile solution for demanding pressure calibration tasks.
Integrated mA and voltage measurement, current sourcing, 24 V loop power, pressure switch testing, Auto Step and leak testing reduce the amount of additional equipment required for field calibration.
With its 4.95-inch capacitive touchscreen, Bluetooth, Wi-Fi and USB connectivity, rechargeable battery and weight of only approximately 1.8 kg, the ADT 760A-D combines advanced calibration functionality with excellent portability.
Looking for the Additel ADT 760A-D or a fully automatic handheld pressure calibration solution? Contact europascal for expert advice, suitable configurations, accessories and professional calibration services.
Further pressure calibration products from europascal can be found here.
Manufacturer information about the Additel ADT 760A-D can be found on the official Additel website.
