Additel ADT 601Ex is a robust intrinsically safe digital pressure gauge designed as a reliable and economical alternative to conventional mechanical pressure gauges. With pressure ranges from vacuum up to 15,000 psi / 1,000 bar, an accuracy of 0.5% FS, Bluetooth communication, IP67 protection and an exceptionally long battery life of up to 9,000 hours, the ADT 601Ex is ideal for industrial pressure measurement in demanding and hazardous environments.

The Additel ADT 601Ex combines digital measurement technology with simple operation and a rugged stainless-steel construction. It has been designed especially for field technicians who require a dependable pressure indication without the complexity of a high-end reference pressure calibrator.

Compared with traditional analog gauges, the digital display eliminates many reading problems associated with mechanical scales and pointers. The large LCD display, integrated backlight and pressure trend indication make pressure values easy to read under different working conditions.

Bluetooth communication provides an additional advantage. The Additel ADT 601Ex can communicate wirelessly with compatible mobile devices using the Additel Link mobile app, allowing pressure values to be monitored remotely.

At europascal, the Additel ADT 601Ex complements a comprehensive portfolio of digital pressure gauges, pressure calibrators, pressure modules and pressure generation equipment. For professional calibration and metrological traceability of digital pressure gauges and other pressure measuring instruments, visit the europascal Calibration Service.

Your Benefits at a Glance

The Additel ADT 601Ex combines simple operation, robust construction and intrinsically safe pressure measurement in one economical digital pressure gauge.

Key benefits include:

• Intrinsically safe digital pressure gauge
• Pressure ranges from -15 psi / -1 bar
• Maximum pressure range up to 15,000 psi / 1,000 bar
• Accuracy of 0.5% FS
• Fully temperature-compensated accuracy
• Temperature compensation from -20 °C to 50 °C
• Rugged stainless-steel housing
• Fully welded pressure sensor
• IP67 protection
• Bluetooth BLE 5.3 communication
• Compatible with the Additel Link mobile app
• Large LCD display
• White display backlight
• Horizontal pressure trend indication
• Adjustable display rate
• 12 selectable pressure units
• Up to 3× overpressure protection depending on pressure range
• Extremely long battery life
• Up to 9,000 hours of operation
• Powered by three AA alkaline batteries
• Four membrane operating buttons
• Button locking function
• Multiple pressure connection options
• Suitable for demanding industrial environments
• Ideal replacement for conventional analog pressure gauges
• Designed for field pressure measurement

Digital Alternative to Mechanical Pressure Gauges

The Additel ADT 601Ex has been developed as a modern alternative to conventional mechanical dial pressure gauges.

Traditional analog pressure gauges are widely used because they are simple and economical. However, mechanical gauges can be affected by vibration, pointer reading errors, parallax and mechanical wear.

The ADT 601Ex retains the straightforward operating concept of a traditional pressure gauge while adding the advantages of digital measurement.

The measured pressure is displayed numerically on a clear LCD.

This makes the value easier to read and eliminates the need to estimate a position between scale divisions.

For users who need a reliable field pressure indicator without the higher cost and complexity of a precision reference gauge, the Additel ADT 601Ex provides an attractive solution.

Pressure Ranges up to 1,000 bar

The Additel ADT 601Ex is available in a wide selection of pressure ranges.

The product family covers pressures starting from:

-15 psi / -1 bar

and extends up to:

15,000 psi / 1,000 bar.

This broad range allows the ADT 601Ex to be used for many industrial pressure measurement applications.

Different versions can be selected according to the pressure range of the installation or device being monitored.

Selecting a suitable range is important because the ADT 601Ex accuracy is specified relative to full scale.

0.5% FS Accuracy

The Additel ADT 601Ex provides an accuracy specification of:

0.5% FS

with detailed specifications depending on the selected pressure range.

For an industrial digital pressure gauge, this provides a practical balance between measurement performance and cost.

The ADT 601Ex is therefore particularly suitable for applications where reliable pressure monitoring is required but the substantially higher accuracy of a reference pressure calibrator is unnecessary.

For applications requiring significantly lower measurement uncertainty, europascal also offers precision Additel digital pressure gauges, reference indicators and pressure calibrators.

Fully Temperature-Compensated Accuracy

Pressure sensor performance can change with ambient temperature.

The Additel ADT 601Ex therefore provides fully temperature-compensated accuracy across an operating temperature range of:

-20 °C to 50 °C.

This is particularly important for field applications.

Industrial pressure gauges may be installed outdoors or in production environments where temperatures vary considerably compared with a controlled calibration laboratory.

The broad compensated temperature range supports dependable measurements under changing environmental conditions.

Intrinsically Safe Design

The Additel ADT 601Ex is designed for pressure measurement in hazardous environments.

The intrinsically safe construction makes it suitable for applications where potentially explosive atmospheres may occur, provided the instrument is used according to its approved certification and operating requirements.

The manufacturer specifies intrinsic-safety approvals for European, international and North American applications.

The European classification includes:

II 1G Ex ia IIC T4 Ga

for the specified operating temperature range.

Typical applications include:

• Oil and gas
• Petrochemical industry
• Refineries
• Chemical processing
• Natural gas installations
• Process plants
• Energy industry
• Industrial maintenance
• Field pressure measurement

Robust Stainless-Steel Construction

The Additel ADT 601Ex has been developed for demanding field use.

Its construction includes a:

stainless-steel housing

and:

fully welded pressure sensor.

The robust design protects the internal measurement technology against demanding industrial conditions.

This makes the gauge particularly suitable for permanent or temporary installation on pressure systems where conventional laboratory instruments would be impractical.

IP67 Protection

The Additel ADT 601Ex is rated:

IP67.

This provides a high degree of protection against dust and water ingress.

The rugged enclosure is therefore well suited to field applications, industrial environments and outdoor measurement tasks.

Combined with its stainless-steel construction, the IP67 rating helps protect the pressure gauge during everyday use in demanding conditions.

Up to 9,000 Hours Battery Life

One of the most impressive practical features of the Additel ADT 601Ex is its extremely long battery life.

Depending on the operating configuration, battery life can reach:

up to 9,000 hours.

The instrument is powered by:

three AA alkaline batteries.

This provides a significant advantage for field installations and applications where the pressure gauge may remain in operation for extended periods.

Long battery life reduces maintenance requirements and minimizes the frequency of battery replacement.

Bluetooth Communication

Despite its straightforward pressure gauge concept, the Additel ADT 601Ex provides modern wireless communication.

The instrument supports:

Bluetooth BLE 5.3.

This enables wireless communication with compatible mobile devices.

Bluetooth functionality is particularly useful when the pressure gauge is installed in a position where direct observation is difficult or inconvenient.

A technician can monitor the pressure from a safer or more convenient location within the permissible wireless operating environment.

Additel Link Mobile App

The Bluetooth functionality of the Additel ADT 601Ex enables communication with the Additel Link mobile app.

This allows users to view pressure measurements on a compatible mobile device.

Remote monitoring can be useful for applications where:

• The gauge is difficult to access
• The installation is physically restricted
• Pressure must be observed from a distance
• Several measurements need to be checked conveniently
• Direct proximity to the pressure system should be minimized

The combination of a conventional local display and wireless monitoring provides additional flexibility for field applications.

Large LCD Display

The Additel ADT 601Ex uses a wide-viewing-angle FSTN segment LCD.

The pressure value is displayed using large characters with a height of approximately:

14.5 mm / 0.57 inches.

This allows the pressure value to be read from a reasonable distance.

The display combines:

• Main pressure indication
• Pressure unit
• Horizontal pressure trend indication

This provides considerably more information than a simple mechanical pointer gauge while maintaining straightforward operation.

White Backlight

For measurements under poor lighting conditions, the ADT 601Ex provides a:

white display backlight.

The backlight duration can be configured for different operating times.

Available settings include continuous operation and timed illumination.

This allows the user to balance visibility against battery consumption.

The feature is particularly useful in plant rooms, pipelines, industrial installations and outdoor environments with changing light conditions.

Pressure Trend Indication

In addition to the numerical pressure value, the Additel ADT 601Ex provides a horizontal pressure trend indication.

This gives the operator an immediate visual indication of pressure changes.

The trend function is useful when pressure is:

• Increasing
• Decreasing
• Stabilizing
• Fluctuating

This provides a quick visual assessment without requiring additional graphical instrumentation.

Adjustable Display Rate

The ADT 601Ex allows the measurement display rate to be adjusted.

In the default low-power mode, the instrument operates at:

1 reading per second.

The update rate can be configured from:

10 readings per second

down to:

1 reading every 10 seconds.

A faster update rate is useful for observing dynamic pressure changes.

A slower rate can be selected for stable processes and helps maximize battery life.

12 Pressure Units

The Additel ADT 601Ex supports 12 standard pressure units.

These include:

• Pa
• kPa
• MPa
• psi
• mbar
• bar
• kgf/cm²
• %
• mmH₂O
• mmHg
• inH₂O
• inHg

This broad selection allows the gauge to be used in different industries and international applications without requiring manual conversion of measurement values.

Overpressure Protection

Pressure gauges used in industrial environments can accidentally be exposed to pressure above their nominal measurement range.

The Additel ADT 601Ex has therefore been designed with robust overpressure capability.

Depending on the selected pressure range, the instrument can withstand up to:

3× overpressure.

The exact permissible overpressure depends on the selected model and must always be checked against the corresponding range specification.

Overpressure protection helps reduce the risk of sensor damage caused by short-term pressure excursions.

Simple Four-Button Operation

The Additel ADT 601Ex is designed to be straightforward to operate.

Four membrane buttons provide access to the required functions.

The membrane design also simplifies cleaning because the operating surface can be wiped easily.

A locking function helps prevent accidental changes to settings.

This simple operating concept is particularly useful for field technicians who require fast access to pressure information without navigating complicated menu structures.

Multiple Pressure Connections

Different pressure connections are available for the Additel ADT 601Ex.

Options include:

• 1/4 NPT male
• 1/2 NPT male
• 1/4 BSP male
• 1/2 BSP male
• M20 × 1.5 male

This allows the pressure gauge to be integrated into a wide variety of industrial pressure systems.

The selected fitting and all adapters must always be suitable for the pressure range and pressure medium used.

Vibration and Shock Resistance

Industrial pressure gauges can be exposed to mechanical vibration and shock.

The Additel ADT 601Ex is specified for:

Vibration: 5 g

and:

Shock resistance: 10 g.

These characteristics contribute to its suitability for field and industrial applications.

Together with the stainless-steel housing and fully welded sensor, the robust mechanical design helps provide dependable operation in demanding environments.

Typical Applications

The Additel ADT 601Ex is suitable for:

• Industrial pressure measurement
• Hazardous-area pressure measurement
• Replacement of analog pressure gauges
• Process pressure monitoring
• Pipeline pressure monitoring
• Hydraulic systems
• Pneumatic systems
• Oil and gas applications
• Petrochemical plants
• Chemical processing
• Refineries
• Natural gas installations
• Maintenance
• Commissioning
• Troubleshooting
• Field service
• Machinery and plant engineering
• Production environments

Technical Highlights

Additel ADT 601Ex vs. Analog Pressure Gauges

The Additel ADT 601Ex is particularly attractive as a digital replacement for conventional analog pressure gauges.

A mechanical gauge uses a pointer and scale to indicate pressure.

The operator must estimate the pressure value from the pointer position and scale division.

The ADT 601Ex displays the pressure directly as a numerical value.

Additional functions such as selectable pressure units, backlighting, pressure trend indication and Bluetooth communication provide capabilities that are not available from a conventional mechanical pressure gauge.

At the same time, the instrument remains intentionally simple.

It is designed as an industrial pressure gauge rather than a complex multifunction calibration instrument.

Additel ADT 601Ex vs. Precision Reference Gauges

The Additel ADT 601Ex should also be clearly distinguished from Additel’s precision reference pressure gauges.

With an accuracy of 0.5% FS, the ADT 601Ex is primarily intended for reliable industrial pressure indication and monitoring.

For calibration applications requiring significantly lower measurement uncertainty, Additel offers dedicated reference pressure gauges and pressure calibrators with substantially higher accuracy.

The ADT 601Ex therefore provides an economical solution when ruggedness, intrinsic safety, straightforward operation and long battery life are more important than reference-level measurement uncertainty.

Why Choose the Additel ADT 601Ex?

The Additel ADT 601Ex provides a practical combination of digital pressure measurement, intrinsic safety, rugged construction and simple operation.

With pressure ranges extending from vacuum to 15,000 psi / 1,000 bar, the product family covers a broad range of industrial pressure applications.

Its 0.5% FS accuracy provides a dependable digital alternative to conventional mechanical gauges, while full temperature compensation from -20 °C to 50 °C supports reliable measurements under changing environmental conditions.

A stainless-steel enclosure, fully welded sensor and IP67 protection make the instrument suitable for demanding industrial environments.

Bluetooth BLE 5.3 communication and compatibility with the Additel Link mobile app provide convenient remote pressure monitoring.

The exceptionally long battery life of up to 9,000 hours minimizes maintenance requirements and makes the gauge particularly suitable for long-term field use.

For hazardous-area applications, the intrinsically safe design provides an important additional advantage.

At europascal, we provide Additel pressure measurement and calibration technology for laboratory, field and industrial applications. Our portfolio includes digital pressure gauges, reference pressure gauges, pressure modules, handheld calibrators, pressure controllers and pressure generation equipment.

For professional calibration and metrological traceability of the Additel ADT 601Ex and other pressure measuring instruments, visit the europascal Calibration Service.

Further Additel products are available from europascal.

Manufacturer information about the Additel ADT 601Ex is available on the official Additel website.

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