Additel ADT 151 is a flexible digital pressure module designed for high-accuracy pressure measurement in professional calibration laboratories and automated pressure calibration systems. With pressure ranges up to 15,000 psi / 1,035 bar, multiple accuracy classes, advanced temperature compensation and quick-change modular construction, the ADT 151 provides a versatile pressure measurement solution for changing calibration workloads.
The ADT 151 pressure modules are designed to be easily exchanged according to the required pressure range. Higher-pressure versions provide two calibrated pressure ranges within a single module, allowing one module to cover a wider calibration workload while maintaining suitable measurement performance. Additel currently offers accuracy options of 0.02% FS, 0.01% FS and high-precision versions reaching 0.01% of reading, depending on the selected module.
The modules are used with Additel’s current pressure controller platforms, including the ADT 773, ADT 783 and ADT 793. The ADT 793, for example, uses ADT 151 modular pressure sensors that mount directly into its front module bays and provides pressure capability up to 15,000 psi.
Every ADT 151 is supplied with an ISO/IEC 17025 accredited calibration certificate and calibration data, providing a strong basis for traceable pressure measurement in professional calibration applications.
At europascal, we provide professional pressure calibration solutions ranging from pressure modules and digital reference instruments to automated pressure controllers and complete calibration systems.
For professional calibration and metrological traceability of pressure modules and pressure measuring equipment, visit the europascal Calibration Service.
Your Benefits at a Glance
The Additel ADT 151 combines wide pressure coverage, modular flexibility and high measurement accuracy.
Key benefits include:
- Digital pressure module
- Pressure ranges up to 15,000 psi / 1,035 bar
- Multiple pressure ranges available
- Gauge pressure versions
- Compound pressure versions
- Differential pressure versions
- Barometric pressure modules available
- High-precision pressure modules available
- Accuracy options down to 0.01% FS
- High-precision versions down to 0.01% of reading
- Fully temperature-compensated accuracy
- Operating specifications from -10 °C to 50 °C
- Single-range and dual-range configurations
- Two calibrated ranges in many higher-pressure modules
- Quick-change modular design
- Compatible with current Additel pressure controllers
- ISO/IEC 17025 accredited calibration certificate included
- Calibration data included
- Optional ADT9054 calibration fixture and software
- Suitable for laboratory and automated pressure calibration
Pressure Ranges up to 1,035 bar
The Additel ADT 151 family covers an exceptionally broad selection of pressure ranges.
At the upper end, the GP15K module provides gauge pressure measurement from:
0 to 15,000 psi
or:
0 to 1,035 bar.
This allows the ADT 151 platform to support applications ranging from low and differential pressure measurement to demanding high-pressure calibration.
Because the ADT 151 is a modular system, users can select pressure modules according to their actual calibration workload rather than relying on a single sensor to cover every application.
Three Accuracy Levels
Additel offers the ADT 151 in different performance classes.
Depending on the selected pressure module, standard accuracy options include:
0.02% FS
and:
0.01% FS.
High-precision modules are also available with specifications reaching:
0.01% of reading.
For example, current high-precision gauge modules specify accuracy as 0.01% of reading or 0.005% FS, whichever is greater.
This enables the pressure measurement performance to be matched to the uncertainty requirements of the calibration task.
Dual-Range Pressure Modules
One of the most useful characteristics of the Additel ADT 151 is the dual-range concept.
Many higher-pressure ADT 151 modules provide:
two pressure ranges in one module.
Each range receives its own calibration.
For example, the current GP15K standard module covers:
First range: 0 to 15,000 psi / 0 to 1,035 bar
and:
Second range: 0 to 6,000 psi / 0 to 420 bar.
The GP10K similarly covers:
0 to 10,000 psi / 0 to 700 bar
with a second range of:
0 to 5,000 psi / 0 to 350 bar.
This dual-range architecture provides better workload coverage without requiring a separate module for every pressure range.
Advanced Temperature Compensation
Pressure sensor performance can vary significantly with temperature.
The Additel ADT 151 therefore incorporates advanced temperature compensation.
The current specifications are valid over an ambient temperature range of:
-10 °C to 50 °C.
This broad compensated temperature range helps maintain reliable pressure measurement performance under changing laboratory and field conditions.
Additel includes temperature effects as part of the specified precision and accuracy calculations.
Comprehensive Accuracy Specification
Additel provides a comprehensive definition of accuracy for the ADT 151.
The published accuracy specification includes:
- Linearity
- Hysteresis
- Repeatability
- Resolution
- Reference standard measurement uncertainty
- Annual drift
- Temperature effects
and is stated with:
k = 2.
This is particularly useful for professional calibration laboratories because important sensor performance contributions are already considered within the published accuracy specification.
Precision and Accuracy
Additel distinguishes between precision and accuracy in the ADT 151 specifications.
Precision includes contributions from:
- Linearity
- Hysteresis
- Repeatability
- Resolution
- Temperature effects
Accuracy additionally includes reference standard measurement uncertainty and annual drift and is specified with k = 2.
This distinction allows metrologists to select the appropriate specification according to the intended measurement and calibration application.
Gauge Pressure Modules
The ADT 151 family includes numerous gauge pressure modules.
At the high-pressure end, examples include:
- GP15K – up to 15,000 psi / 1,035 bar
- GP10K – up to 10,000 psi / 700 bar
Additional modules provide lower ranges for calibration applications where improved resolution and lower absolute uncertainty are required.
Gauge pressure modules can be periodically zeroed to reduce the influence of zero drift.
Compound Pressure Modules
The Additel ADT 151 is also available in compound pressure configurations.
These modules cover negative gauge pressure and positive pressure within one sensor.
Examples from the current range include modules such as:
CP6K: -1 to 420 bar
and:
CP5K: -1 to 350 bar.
Compound modules are particularly useful for calibration workloads that include both vacuum relative to atmosphere and positive gauge pressure.
Differential Pressure Modules
The ADT 151 family also includes differential pressure modules.
These provide measurement capability for low and differential pressure applications.
The current range extends from very low differential pressure modules through higher differential ranges. Additel’s specifications also define the permissible static pressure and burst pressure for the respective modules.
This makes the ADT 151 platform useful for calibration applications involving differential pressure transmitters, gauges and other low-pressure instrumentation.
Barometric Pressure Modules
Dedicated barometric pressure modules are available for the ADT 151 platform.
Current options include:
ADT 151-BP
with a range of:
60 to 110 kPa
and accuracy of:
±22 Pa
as well as:
ADT 151-BPH
with the same pressure range and improved accuracy of:
±10 Pa.
When installed in compatible ADT 773, ADT 783 or ADT 793 systems, the barometric module can support conversion between gauge and absolute pressure measurement modes.
High-Precision Modules
For demanding calibration applications, Additel offers high-precision ADT 151 variants.
For example, the GP15KM covers:
0 to 15,000 psi / 0 to 1,035 bar
and provides accuracy of:
0.01% of reading or 0.005% FS, whichever is greater.
The GP10KM provides the same high-precision specification over a range up to:
10,000 psi / 700 bar.
These versions are particularly suitable when improved performance over conventional full-scale specifications is required.
Designed for Additel Pressure Controllers
The Additel ADT 151 is an important part of Additel’s current modular pressure controller platform.
Additel lists the ADT 151 together with the:
Additel ADT 773
Additel ADT 783
and:
Additel ADT 793.
The pressure modules are designed to mount into the appropriate module bays of the controllers.
This modular concept allows the controller to be adapted to changing pressure ranges without replacing the complete instrument.
Additel ADT 793 Compatibility
The Additel ADT 793 is the high-pressure controller within the current platform and supports pressure ranges up to 15,000 psi.
Its internal pressure measurement system uses ADT 151 modules installed in the front module bays.
This allows different pressure ranges and performance levels to be selected according to the calibration workload.
For laboratories covering several pressure ranges, interchangeable modules can significantly improve utilization of the pressure controller.
Additel ADT 783 Compatibility
The ADT 151 is also used with the Additel ADT 783 Pressure Controller.
Depending on the selected controller configuration and module, the system can cover pressure workloads up to 6,000 psi.
The current ADT 151 documentation specifically identifies suitable ADT 783 configurations for a variety of compound and gauge pressure modules.
This provides a scalable approach for laboratories requiring several pressure ranges.
Additel ADT 773 Compatibility
Low-pressure and differential-pressure ADT 151 modules are used with the Additel ADT 773 Pressure Controller / Generator.
The ADT 773 provides dedicated module bays, including support for low- and high-range differential modules as well as optional ADT 151 barometric modules.
This extends the ADT 151 concept from high pressure down into demanding differential and low-pressure applications.
Quick Module Changes
The modular architecture is designed to make pressure modules easy to exchange.
Additel specifically emphasizes that ADT 151 modules can be swapped according to changing workloads.
For calibration laboratories, this can reduce the need for multiple complete pressure controllers.
Instead, the controller platform can remain in place while the pressure measurement module is selected according to the required range.
This provides greater flexibility and can reduce equipment investment.
ISO/IEC 17025 Accredited Calibration Included
Each Additel ADT 151 is supplied with an:
ISO/IEC 17025 accredited calibration certificate
and associated calibration data.
This is particularly important for professional calibration laboratories where metrological traceability and documented calibration data are essential.
The module can therefore be integrated into a quality management and calibration system with the corresponding manufacturer calibration documentation.
Recommended Calibration Interval
Additel recommends an annual calibration interval for most ADT 151 pressure modules.
The actual calibration interval should always be determined by the user according to:
- Required measurement uncertainty
- Frequency of use
- Historical stability
- Environmental conditions
- Quality management requirements
- Risk assessment
Certain very-low-pressure modules may have different recommended intervals; the current datasheet, for example, identifies a 180-day recommendation for the DP1 module.
Optional ADT9054 Calibration Fixture
Additel offers the ADT9054 calibration fixture for the ADT 151.
The fixture package includes:
- Adapter base
- 1/4 BSP male pressure fitting
- RS232/power supply cable
- 9 V adapter
- Calibration software
This accessory allows ADT 151 modules to be connected independently for calibration and adjustment work.
The current Additel resources also list the Additel 9054 Module Adjustment Software, with a 2026 software release available for the ADT 151 platform.
Compact and Robust Construction
Despite its broad pressure capability, the ADT 151 is compact.
Current general specifications list approximately:
30 × 80 × 91 mm
and a weight of approximately:
0.5 kg.
The enclosure used for external applications is aluminum.
This compact construction makes the module easy to handle and store while providing a robust solution for professional calibration systems.
Environmental Specifications
The Additel ADT 151 is designed for professional laboratory and field conditions.
General specifications include:
Operating temperature: -10 °C to 50 °C
Storage temperature: -30 °C to 70 °C
Relative humidity: 10% to 95% RH, non-condensing.
The wide compensated operating range supports reliable pressure measurement under varying environmental conditions.
Pressure Media
The permitted pressure medium depends on the selected ADT 151 module.
Current specifications identify modules suitable for:
Gas
or:
Gas and liquid
depending on the pressure range and sensor design.
The correct module must therefore be selected according to both the pressure range and the pressure medium used in the calibration system.
Typical Applications
The Additel ADT 151 is suitable for applications including:
- Pressure controller reference measurement
- Automated pressure calibration
- Pressure gauge calibration
- Digital pressure gauge calibration
- Pressure sensor calibration
- Pressure transmitter calibration
- Differential pressure calibration
- Compound pressure calibration
- High-pressure calibration
- Barometric pressure measurement
- Laboratory pressure standards
- Industrial calibration laboratories
- ISO/IEC 17025 calibration laboratories
- Research and development
- Production testing
Technical Highlights
| Feature | Additel ADT 151 |
|---|---|
| Device type | Digital pressure module |
| Maximum pressure range | 15,000 psi / 1,035 bar |
| Standard accuracy options | 0.01% FS / 0.02% FS |
| High-precision capability | Down to 0.01% of reading |
| Temperature compensation | Yes |
| Compensated range | -10 °C to 50 °C |
| Single-range modules | Yes |
| Dual-range modules | Yes |
| Gauge pressure | Yes |
| Compound pressure | Yes |
| Differential pressure | Yes |
| Barometric modules | Yes |
| BP accuracy | ±22 Pa |
| BPH accuracy | ±10 Pa |
| Calibration certificate | ISO/IEC 17025 accredited |
| Calibration data | Included |
| Optional calibration fixture | ADT9054 |
| Dimensions | Approx. 30 × 80 × 91 mm |
| Weight | Approx. 0.5 kg |
| Operating temperature | -10 °C to 50 °C |
| Storage temperature | -30 °C to 70 °C |
| Relative humidity | 10–95% RH, non-condensing |
Why Choose the Additel ADT 151?
The Additel ADT 151 provides a highly flexible approach to pressure measurement in modern calibration systems.
Instead of permanently integrating a single pressure sensor range into a controller, the ADT 151 platform allows modules to be exchanged according to the calibration workload.
Pressure ranges extend to 15,000 psi / 1,035 bar, while low-pressure, differential, compound and barometric modules provide coverage for a wide variety of pressure applications.
Higher-pressure modules can provide two individually calibrated pressure ranges in a single module, helping laboratories cover wider workloads with fewer sensors.
Different accuracy classes allow the measurement performance to be selected according to the application, from conventional 0.02% FS modules through 0.01% FS versions to high-precision modules with specifications reaching 0.01% of reading.
