The Additel ADT 760S-MA Automatic Pressure Calibrator is a compact, fully automatic handheld pressure calibrator designed for precise gauge and absolute pressure applications. It combines an integrated electric pressure pump, automatic pressure generation, closed-loop pressure control, interchangeable precision pressure modules and an integrated barometric reference in one portable instrument.
The ADT 760S-MA covers a pressure range from vacuum to:
-0.86 to 25 bar(g)
or:
-12.5 to 375 psig
Depending on the installed interchangeable ADT155 pressure module, pressure accuracy is available as:
0.01 % FS or 0.02 % FS
with pressure control stability of:
0.005 % FS
A major feature of the Additel ADT 760S-MA is its integrated barometric reference. This enables the instrument to switch between:
Gauge Pressure
and:
Absolute Pressure
The ADT 760S is the streamlined pressure-focused version of the ADT760A platform. It provides the same pressure ranges and pressure accuracy as the corresponding ADT760A configurations but does not include the electrical ports or integrated device communication functions of the ADT760A.
This makes the ADT 760S-MA particularly suitable for users who require a precise, fast and fully automatic portable pressure source without an integrated electrical process calibrator.
The europascal calibration service provides professional calibration solutions for automatic pressure calibrators, pressure controllers, pressure modules, digital pressure gauges, pressure transmitters and pressure sensors.
Your Benefits at a Glance
The Additel ADT 760S-MA Automatic Pressure Calibrator provides:
- Fully automatic handheld pressure generation
- Integrated electric pressure pump
- Automatic closed-loop pressure control
- Pressure generation from vacuum to 25 bar
- Pressure range from -0.86 to 25 bar(g)
- Pressure range from -12.5 to 375 psig
- Gauge pressure measurement
- Absolute pressure measurement
- Integrated barometric reference
- Pressure accuracy of 0.01 % FS or 0.02 % FS
- Pressure control stability of 0.005 % FS
- Interchangeable internal ADT155 pressure modules
- Six-digit pressure resolution
- Two external pressure module channels
- Built-in filter
- Built-in liquid trap
- Large capacitive touchscreen
- Bluetooth communication
- Wi-Fi communication
- USB communication
- Compact handheld design
- Weight of less than approximately 1.8 kg
- Optional Contamination Prevention System
- No integrated electrical process calibration ports
- No HART Field Communicator
- No integrated data logging
- No DL version
Automatic Pressure Generation from Vacuum to 25 bar
The Additel ADT 760S-MA provides the highest pressure generation capability within the ADT760S handheld series.
Its pressure range extends from:
-0.86 to 25 bar(g)
or:
-86 to 2,500 kPa(g)
and:
-12.5 to 375 psig
The negative pressure capability allows vacuum relative to atmospheric pressure to be generated, while the integrated electric pump generates positive pneumatic pressure up to 25 bar.
This wide pressure range makes the ADT 760S-MA suitable for many industrial pressure calibration applications without requiring an external hand pump or pressure source.
Fully Automatic Pressure Control
One of the major advantages of the Additel ADT 760S-MA is its fully automatic pressure generation.
A conventional pressure calibration setup may require:
- Manual pressure pump
- Precision reference pressure gauge
- Fine pressure adjustment valve
- Pressure tubing
- Pressure adapters
- Additional pressure control components
The ADT 760S-MA combines pressure generation, reference pressure measurement and automatic pressure control in one compact instrument.
The operator enters the required pressure setpoint and the integrated electric pump automatically generates the pressure.
The closed-loop pressure controller then regulates the pressure until the required setpoint is reached and stabilized.
This significantly reduces manual pumping and fine adjustment during repetitive calibration procedures.
Pressure Accuracy up to 0.01 % FS
Depending on the installed ADT155 internal pressure module, the Additel ADT 760S-MA provides pressure accuracy of:
0.01 % FS
or:
0.02 % FS
FS refers to the span of the installed pressure module.
This is an important consideration when selecting the appropriate internal module.
Using a pressure module that is closely matched to the actual calibration range can improve absolute measurement performance compared with using the maximum 25 bar module for substantially lower pressures.
Pressure Control Stability
The specified pressure control 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 useful during multipoint calibration because the device under test can be evaluated after the reference pressure has automatically reached a stable condition.
Gauge Pressure Measurement
The Additel ADT 760S-MA supports:
Gauge Pressure
Gauge pressure is measured relative to the surrounding atmospheric pressure.
The relationship can be expressed approximately as:
p_gauge = p_absolute – p_atmosphere
A gauge pressure of zero therefore corresponds approximately to the current atmospheric pressure.
Gauge pressure is commonly used for:
- Industrial pressure gauges
- Pressure transmitters
- Pressure sensors
- Pressure switches
- Pneumatic process instrumentation
Absolute Pressure Measurement
The MA version also supports:
Absolute Pressure
Absolute pressure is referenced to an ideal vacuum.
The approximate relationship is:
p_absolute = p_gauge + p_atmosphere
To calculate absolute pressure accurately from a gauge pressure measurement, the current atmospheric pressure must therefore be known.
The ADT 760S-MA solves this by incorporating its own barometric reference.
Integrated Barometric Reference
The Additel ADT 760S-MA includes a built-in:
barometric reference
This enables the instrument to switch between gauge and absolute pressure measurement.
This capability is one of the most important differences between the MA configuration and the D or LLP configurations.
For absolute pressure measurement, Additel specifies that an additional:
55 Pa uncertainty
must be included.
This additional contribution is associated with the barometric reference and should be considered when evaluating the complete measurement uncertainty in absolute pressure mode.
Interchangeable ADT155 Pressure Modules
The ADT 760S-MA uses interchangeable internal:
Additel ADT155 pressure modules
The maximum MA configuration provides pressure generation and measurement up to:
25 bar / 375 psi
Additional internal sensors with lower pressure ranges are available.
Selecting a lower-range pressure module can provide improved measurement performance when the calibration application does not require the complete 25 bar range.
The interchangeable sensor concept also provides greater flexibility than an instrument with only one permanently installed pressure range.
Six-Digit Pressure Resolution
The ADT760S platform provides:
6-digit pressure resolution
A wide range of pressure units is available, including:
- Pa
- hPa
- kPa
- MPa
- bar
- mbar
- psi
- mmHg
- torr
- inHg
- inH₂O
- mmH₂O
- cmH₂O
- kgf/cm²
- Custom units
This makes the ADT 760S-MA suitable for international calibration applications and different industrial pressure measurement conventions.
Two External Pressure Module Channels
In addition to the interchangeable internal ADT155 module, the ADT760S platform supports:
two external pressure module channels
Compatible Additel external pressure modules can therefore be connected for additional pressure measurement applications.
This expands the measurement flexibility of the instrument beyond the installed internal pressure module.
The external measurement channels do not, however, extend the pressure generation capability of the internal pneumatic system.
ADT 760S-MA – Pressure-Focused Design
The Additel ADT 760S-MA is designed for applications where automatic pressure generation and precision pressure measurement are the primary requirements.
Additel describes the ADT760S as the streamlined version of the ADT760A platform.
The ADT 760S provides the same pressure ranges and pressure accuracy as the corresponding ADT 760A but does not include its electrical ports or integrated device communication functions.
This makes the ADT 760S-MA particularly useful as a:
portable automatic pressure source
for calibration laboratories and field applications.
No Integrated Electrical Measurement
Unlike the ADT 760A-MA, the ADT 760S-MA does not provide integrated electrical process calibration ports.
The ADT 760S-MA should therefore not be specified with functions such as:
- Integrated mA measurement
- Integrated voltage measurement
- 24 mA source/simulation
- 24 V loop power
- Integrated pressure switch electrical testing
These functions belong to the ADT760A process calibrator platform.
When electrical measurements are required, the ADT 760S-MA can be combined with a separate electrical reference instrument.
Ideal for Use with External Electrical References
A typical example is the calibration of a:
4–20 mA pressure transmitter
The ADT 760S-MA can automatically generate and measure the required reference pressure.
The transmitter output can then be measured separately using a:
- Precision digital multimeter
- Process calibrator
- Electrical reference instrument
- Data acquisition system
This configuration can be particularly attractive for professional calibration laboratories that already have high-accuracy electrical measurement equipment.
No HART Field Communicator
The ADT 760S-MA does not provide an integrated HART Field Communicator.
HART functionality is available with the appropriate DL configurations of the ADT760A platform.
Users requiring communication, configuration or diagnostics of smart HART pressure transmitters should therefore select the corresponding ADT760A model.
No Integrated Data Logging
The ADT 760S-MA should also be distinguished from the documenting functionality of the ADT760A.
Integrated:
Data Logging
is only available on ADT760A models.
It should therefore not be listed as a standard feature of the ADT 760S-MA.
No ADT 760S-MA-DL Version
The ADT760S family consists of:
- ADT 760S-LLP
- ADT 760S-D
- ADT 760S-MA
There are no corresponding ADT760S-DL configurations.
Customers requiring HART communication, task documentation or integrated data logging should select the appropriate ADT760A-DL model.
Built-In Filter and Liquid Trap
The ADT760A/760S platform includes:
a built-in filter
and:
a built-in liquid trap
These components help protect the internal pneumatic system against contamination entering from the device under test or pressure lines.
This is particularly useful for field calibration, where connected instruments may have previously been exposed to industrial processes.
Optional Contamination Prevention System
An optional:
Contamination Prevention System – CPS
is available for the ADT760A/760S platform.
The CPS provides additional protection for the internal pneumatic components.
Potential contaminants can include:
- Oil
- Moisture
- Dirt
- Particles
- Process residues
Protecting the internal pump, pressure module and control system can contribute to reliable long-term operation.
Modern Touchscreen Operation
The ADT760S platform features a large capacitive touchscreen.
Pressure setpoints can be entered directly through the user interface.
The automatic controller then generates and stabilizes the requested pressure.
This is particularly convenient during multipoint calibration because the operator no longer has to manually pump and finely adjust each pressure point.
Bluetooth, Wi-Fi and USB
The Additel ADT 760S-MA supports:
Bluetooth
Wi-Fi
and:
USB
communication.
These interfaces provide flexible connectivity for supported software interaction, instrument operation and maintenance.
The availability of these interfaces should not be confused with the integrated process-device communication capabilities of the ADT760A-DL versions.
Compact Handheld Design
The ADT760S platform weighs less than:
4 lb / 1.8 kg
This makes the ADT 760S-MA suitable for both laboratory and mobile field calibration.
Its combination of:
- Integrated electric pressure pump
- Automatic pressure controller
- Precision pressure measurement
- Interchangeable internal pressure module
- Barometric reference
- External pressure module support
provides substantial functionality in a compact handheld instrument.
Technical Highlights
Model: Additel ADT 760S-MA
Device type: Automatic Handheld Pressure Calibrator
Pressure range: -0.86 to 25 bar(g)
Pressure range: -86 to 2,500 kPa(g)
Pressure range: -12.5 to 375 psig
Maximum positive pressure: 25 bar / 2.5 MPa
Pressure types: Gauge and Absolute
Barometric reference: Integrated
Pressure accuracy: 0.01 % FS or 0.02 % FS depending on module
Additional absolute mode uncertainty: 55 Pa
Pressure control stability: 0.005 % FS
Pressure resolution: 6 digits
Pressure generation: Integrated electric pump
Pressure control: Fully automatic
Internal pressure module: Interchangeable ADT155
External pressure measurement channels: 2
Built-in filter: Yes
Built-in liquid trap: Yes
Electrical measurement/source ports: No
HART Field Communicator: No
Data logging: No
DL version: No
Communication: Bluetooth, Wi-Fi and USB
Weight: Less than approximately 1.8 kg
Contamination Prevention System: Optional
Technical Data
| Feature | Additel ADT 760S-MA |
|---|---|
| Device type | Automatic Handheld Pressure Calibrator |
| Pressure range | -0.86 to 25 bar(g) |
| Pressure range | -86 to 2,500 kPa(g) |
| Pressure range | -12.5 to 375 psig |
| Maximum positive pressure | 25 bar / 2.5 MPa |
| Pressure types | Gauge / Absolute |
| Barometric reference | Integrated |
| Accuracy | 0.01 % FS or 0.02 % FS |
| Additional uncertainty in absolute mode | 55 Pa |
| Control stability | 0.005 % FS |
| Pressure resolution | 6 digits |
| Internal module | Interchangeable ADT155 |
| Pressure generation | Integrated electric pump |
| Pressure control | Automatic |
| External pressure channels | 2 |
| Built-in filter | Yes |
| Built-in liquid trap | Yes |
| Electrical measurement | No |
| Electrical source | No |
| 24 V loop power | No |
| HART | No |
| Data logging | No |
| DL version | No |
| Communication | Bluetooth, Wi-Fi, USB |
| Weight | <1.8 kg / 4 lb |
| CPS | Optional |
ADT 760S-MA vs. ADT 760A-MA
The pressure performance of the two MA versions is essentially the same, but their functional scope is different.
| Feature | ADT 760S-MA | ADT 760A-MA |
|---|---|---|
| Pressure range | -0.86 to 25 bar | -0.86 to 25 bar |
| Pressure types | Gauge / Absolute | Gauge / Absolute |
| Barometric reference | Yes | Yes |
| Accuracy | 0.01 or 0.02 % FS | 0.01 or 0.02 % FS |
| Control stability | 0.005 % FS | 0.005 % FS |
| Automatic pressure generation | Yes | Yes |
| Interchangeable ADT155 module | Yes | Yes |
| External pressure modules | Yes | Yes |
| Integrated electrical ports | No | Yes |
| mA/V measurement | No | Yes |
| 24 V loop power | No | Yes |
| Integrated HART | No | Available with MA-DL |
| Data logging | No | Available on ADT760A |
| Task documentation | No | Available with corresponding ADT760A configuration |
The ADT 760S-MA is therefore the preferred configuration when precise automatic pressure generation and pressure measurement are required without integrated electrical process calibration.
The ADT 760A-MA is the better choice when pressure generation must be combined with electrical measurement, transmitter calibration and advanced documentation functions in one handheld instrument.
ADT 760S-MA vs. ADT 760S-D and ADT 760S-LLP
The ADT760S series covers three different pressure application areas:
| Model | Pressure Range | Pressure Type |
|---|---|---|
| ADT 760S-LLP | ±75 mbar | Gauge / Differential |
| ADT 760S-D | -0.86 to 2.5 bar | Gauge / Differential |
| ADT 760S-MA | -0.86 to 25 bar | Gauge / Absolute |
The ADT 760S-MA provides the highest pressure capability within the ADT760S family.
The LLP version is optimized for very low differential pressures.
The D version extends gauge and differential pressure generation to 2.5 bar.
The MA version increases positive pressure capability to 25 bar and replaces differential pressure functionality with an integrated barometric reference for gauge and absolute pressure measurement.
Typical Calibration Applications
The Additel ADT 760S-MA Automatic Pressure Calibrator is particularly suitable for calibration and testing of:
- Gauge pressure transmitters
- Absolute pressure transmitters
- Pressure sensors
- Pressure transducers
- Digital pressure gauges
- Analog pressure gauges
- Pneumatic pressure instruments
- Process pressure instrumentation
- Pressure references
- Barometric pressure applications
Typical users include:
- Professional calibration laboratories
- Industrial maintenance departments
- Process industry
- Chemical industry
- Pharmaceutical industry
- Power generation
- 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 metrological performance.
This is particularly relevant for the MA configuration because absolute pressure measurements combine the internal gauge pressure measurement with information from the barometric reference.
The europascal calibration service provides professional calibration solutions for automatic pressure calibrators, pressure controllers, pressure modules, digital pressure gauges, pressure transmitters and pressure sensors.
europascal can also support customers in selecting the appropriate ADT155 internal pressure module, pressure range and accessories.
Why Choose the Additel ADT 760S-MA?
The Additel ADT 760S-MA Precise Automatic Pressure Calibrator combines automatic pneumatic pressure generation from -0.86 to 25 bar, pressure accuracy down to 0.01 % FS, 0.005 % FS control stability and an integrated barometric reference in one compact handheld instrument.
Its ability to operate with both gauge and absolute pressure makes the MA configuration particularly versatile for industrial and laboratory pressure calibration.
Interchangeable ADT155 internal pressure modules and two external pressure measurement channels provide additional flexibility for different pressure ranges.
Most importantly, the ADT 760S-MA provides the pressure performance of the ADT760A platform without the integrated electrical process calibration and advanced device communication functions of the ADT760A.
This makes it an excellent choice for calibration laboratories and technicians who already use separate electrical reference instruments or simply require a precise, portable and fully automatic pneumatic pressure source.
Looking for the Additel ADT 760S-MA or an automatic handheld pressure source from vacuum to 25 bar? Contact europascal for expert advice, suitable ADT155 module configurations, accessories and professional calibration services.
Further information about the Additel ADT 760S series from europascal can be found here.
Further pressure calibration products from europascal can be found here.
Manufacturer information about the Additel ADT 760S-MA can be found on the official Additel website.
