Pressure / Process Calibration Equipment
01
Corporate Headquarters
2900 Saturn St #B
Brea, CA 92821, USA
Salt Lake City Office
1364 West State Rd. Suite 101
Pleasant Grove, UT 84062, USA
Phone: 714-998-6899 Email: sales@additel.com
Rev # 20261014
Field Device Communicator
Additel 295
OVERVIEW
The ADT295 Field Device Communicator is a versatile, all-in-one solution for configuring, calibrating, diagnosing,
and managing HART®, FOUNDATION™ Fieldbus, and Profibus PA instruments. Designed for industrial process
applications, it supports transmitters, positioners, and other eld devices used across the oil & gas, chemical, power,
and process industries.
With both online and offline operating modes, the ADT295 communicates directly with installed field devices during
operation while also supporting calibration, testing, and troubleshooting in metrology laboratories, instrument shops, and
maintenance facilities. Integrated loop power and advanced diagnostic capabilities eliminate the need for external power
supplies, resistors, and other accessories, allowing technicians to complete more tasks with a single handheld device.
HART, FOUNDATION Fieldbus & Profibus PA Support
No External Power or Resistors Required
FREE wireless DD library updates—no subscription required
0.01% RD + 1.5 μA Current Measurement Accuracy
Latest FDI Technology for Broad Device Compatibility
Integrated High-Precision Loop Diagnostics
Field-Tested for Speed and Ease of Use
20 hour battery life - continuous use
5-inch color touchscreen & physical buttons - glove compatible
ISO 17025-accredited Calibration w/data Included
Electrical Signal Port
Hang Strap Lug
Battery Pack
Digital Connector Port
USB Port
Touchscreen
Textile Keypad
Pressure Module Input
Pressure / Process Calibration Equipment
02
Corporate Headquarters
2900 Saturn St #B
Brea, CA 92821, USA
Salt Lake City Office
1364 West State Rd. Suite 101
Pleasant Grove, UT 84062, USA
Phone: 714-998-6899 Email: sales@additel.com
Rev # 20261014
Comprehensive Process Signal & Pressure Calibration
Designed to streamline field calibration, the ADT295 supports
autoranging voltage measurement, current measurement, current
output, and an integrated 24 V loop power supply for testing and
calibrating AI and AO cards, all from a single handheld. Voltage and
current readings are accurate to 0.01% RD, and the loop power supply
outputs 24 V with up to 30 mA of drive capacity, enough to power a
transmitter directly during testing without sourcing external power.
Every unit ships standard with a traceable, ISO/IEC 17025-accredited
calibration, so it’s ready to use as a reliable reference from day one.
By connecting an external Additel digital pressure module, users can
also calibrate pressure transmitters, reducing the need for multiple
instruments and improving maintenance efciency.
Field-Tested Speed and Usability
In the eld, every extra second spent waiting on a device is time wasted
that could be used for other tasks. Early trials of the ADT295 point to
real gains here: testers consistently describe device communication
and menu navigation as noticeably faster than what they're used to with
other handheld communicators. The difference traces back to how the
interface was built, organized around real technician workflows rather
than underlying protocol architecture, so common tasks take fewer steps
to complete. Testers have specifically pointed to routine calibration
checks as an area where the streamlined navigation saves noticeable
time
Intuitive Touchscreen Interface
The ADT295 gives technicians a choice in how they work. Its 5-inch
color touchscreen and physical keypad are both fully operable while
wearing gloves, so you can tap through menus when that’s quickest
or navigate by keypad if you prefer the feel of physical buttons. Not
every technician wants a touch-only device, and the ADT295 doesn’t
force the choice. Adjustable backlighting and selectable light and
dark themes optimize screen visibility across varying ambient lighting
conditions, ensuring clear readability even in direct sunlight. The easy-
to-use, intuitive interface is similar to navigating a cell phone, providing
functions and features with a simple selection
Features
FREE DD library updates - no fees or subscriptions
Additel doesn't charge a fee or a subscription for DD library or rmware
updates — there's no support contract required just to keep the
communicator current. With pre-installed libraries supporting over 2,600
HART, FOUNDATION Fieldbus, and Probus PA devices, the ADT295
is ready to communicate with a wide range of eld instruments right out
of the box.
Built-in Wi-Fi and Bluetooth keep the ADT295 connected without extra
hardware. As new devices come to market, a one-click update over Wi-
Fi refreshes the DD library directly on the unit, with no computer, no IT
involvement, and no complicated procedure required. Whether it’s a
routine library refresh or a rmware update, the process stays the same:
connect, download, and the ADT295 is ready for the next device in your
plant.
Pressure / Process Calibration Equipment
03
Corporate Headquarters
2900 Saturn St #B
Brea, CA 92821, USA
Salt Lake City Office
1364 West State Rd. Suite 101
Pleasant Grove, UT 84062, USA
Phone: 714-998-6899 Email: sales@additel.com
Rev # 20261014
Integrated Document Management & File Sharing
The ADT295 transforms the communicator into a powerful onsite
information hub, allowing users to store and access important
documents, videos, images, and technical resources directly in the eld.
With 64 GB of onboard storage, there's ample room to carry manuals,
wiring diagrams, work instructions, calibration records, and reference
material for an entire plant.
An intuitive file management system keeps everything organized and
easy to find, so technicians spend less time searching and more time
working. High-speed Bluetooth transfer enables quick sharing between
devices and team members, letting a technician hand off documentation
or updated files on the spot without needing a network connection
or returning to a workstation. By keeping critical resources available
anytime and anywhere, the ADT295 helps technicians work faster,
troubleshoot more effectively, and minimize interruptions.
Integrated Pressure Calibration & Device Communication
The ADT295 streamlines pressure transmitter calibration by allowing
users to communicate with the device while simultaneously acquiring
reference pressure data from a connected Additel digital pressure
module. This enables efficient on-site comparative calibration without
interrupting device communication, reducing testing time and simplifying
field maintenance. The communicator supports one external Additel
ADT161 Digital Pressure Module, available as an optional accessory.
The ADT161 family covers gauge, compound, differential, and barometric
measurements, with ranges from vacuum up to 60,000 psi (4,200 bar)
and differential ranges as low as ±1 inH
2
O. Accuracy options span
0.1% FS on the highest ranges to 0.01% FS on gauge and compound
modules through 15,000 psi. Precision sensors reach 0.01% of reading
or 0.005% FS, whichever is greater. Every module ships with an ISO
17025 accredited calibration certicate, so you can match the reference
to the transmitter under test.
Rugged Design for Field Use
Field work doesn’t happen in a lab, and the ADT295 is engineered
accordingly. At just 1.8 lb (0.8 kg) and 7.6 × 3.8 × 2.2 in (192.3 × 96.5 ×
55.3 mm), it’s compact and light enough to carry all day, so ruggedness
doesn’t come at the cost of portability. Protected electrical test ports
guard against accidental 220 V contact, so a moment’s inattention is
unlikely to take the ADT295 out of service. The display is covered in
rugged tempered glass that resists scratches and impacts from the daily
wear of a tool bag or work belt, paired with a bright, sunlight-readable
touchscreen that stays legible whether you’re in a dim equipment room
or out on an open platform at midday.
The IP54-rated enclosure keeps dust and moisture out, and the ADT295
backs that up with real environmental testing: the unit is rated to survive
a 1-meter drop test, along with 5 g vibration and 8 g mechanical shock
testing, and it holds up to 48 hours of salt spray exposure, a meaningful
bar for coastal, offshore, and marine process environments. Combined
with an operating range of -20°C to 50°C, the ADT295 is built to
keep working through the conditions that put lesser handhelds out of
commission, wherever the job takes you. Each unit is also covered by a
1-year warranty.
Pressure / Process Calibration Equipment
04
Corporate Headquarters
2900 Saturn St #B
Brea, CA 92821, USA
Salt Lake City Office
1364 West State Rd. Suite 101
Pleasant Grove, UT 84062, USA
Phone: 714-998-6899 Email: sales@additel.com
Rev # 20261014
Advanced Device Conguration & Management Features
The ADT295 combines essential field communicator functions with
enhanced tools designed to simplify device setup, troubleshooting,
and maintenance. Standard capabilities include DD menu navigation,
parameter configuration, test methods, data trending, help resources,
library browsing, customizable hotkeys, favorites management,
conguration storage, and ofine simulation. Additional features such as
full-screen help, complete parameter backup and restoration, frequently
used DD favorites, device connection history, and integrated calibration
signal generation further improve workflow efficiency and provide
technicians with a more powerful and convenient eld solution.
FREE Product & Application Support
Support is included with every ADT295. Additel provides product and
application support at no charge, the same way we do for all of our
equipment, with no support contract or subscription required. Whether
you have a question about setting up a calibration, need help with
a HART or FOUNDATION Fieldbus device, or want guidance on
getting the most from the communicator in your plant, you can reach
a knowledgeable team without a service fee. Service is something
Additel customers mention to us often, and it reflects how we run the
business. Quality products, responsive customer service, and innovative
engineering have always been our priorities, and we stand behind every
customer with competitively priced products and dependable technical
support.
Specification ADT295
System
Android OS, 8 core
Storage
64 GB
Display
5.0-inch 720×1280 LCD capacitive touch screen, 60Hz refresh rate
Dimensions
7.6 × 3.8 × 2.2 in (192.3 × 96.5 × 55.3 mm)
Weight
1.8 lb (0.8 kg)
Keys
1 power key, 8 function keys
Power Supply
Standard 6900 mAh rechargeable lithium battery; optional 10000 mAh high-capacity battery
Charging
Type-C charging port; use dedicated 5 V adapter; approx. 2.5 hours full charge time
Battery Runtime
Measurement mode (24 V off, measurement only): about 20 hours
Output mode (24 V enabled, 12 mA output): about 14 hours
Environment
Rated accuracy range: 8 °C ~ 30 °C
Operating temperature: -20 °C ~ 50 °C
Storage temperature: -20 °C ~ 70 °C
Charging temperature: 0 °C ~ 45 °C
Humidity
0% ~ 95% RH, non-condensing
Altitude
3000 meters
Port Withstand Voltage
Typical 60VAC max; automatic protection against accidental 220 V input with no device damage
Compliance
CE
Protection level
IP54; passes 1-meter drop test
Vibration
5 g low-frequency & high-frequency vibration test
Shock Resistance
8 g mechanical shock test
Salt Spray Test
48-hour salt spray resistance
User interface location
English, German, French, Italian, Spanish, Portuguese,
Simplied Chinese, Traditional Chinese, Japanese,
Russian
Communication
Interfaces
USB2.0 Type-C (host/slave compatible), Bluetooth, Wi-Fi, NFC
Warm-Up Time
Instant operation; no warm-up required
Isolation Design
USB communication port electrically isolated from measurement terminals;
safe for simultaneous USB connection and eld testing
Warranty
1 year
General Specification
Pressure / Process Calibration Equipment
05
Corporate Headquarters
2900 Saturn St #B
Brea, CA 92821, USA
Salt Lake City Office
1364 West State Rd. Suite 101
Pleasant Grove, UT 84062, USA
Phone: 714-998-6899 Email: sales@additel.com
Rev # 20261014
Model Type
ADT295
Function Description
ADT295
HART+ WIFI+BLE Supports HART communication and loop diagnosis
ADT295-FF
HART+FF+WIFI+BLE Supports HART + FF communication and loop diagnosis
ADT295-FF-PA
HART+FF+PA+WIFI+BLE Supports HART + PA + FF communication and loop diagnosis
Model Selection Table
ORDERING INFORMATION
Model Number
ADT295
ADT295
ADT295-FF
ADT295-FF-PA
Standard Accessories
Model number Description QTY Picture
9811-X 110V/220V external power adapter 1 pc
9705 Chargeable Li-ion battery 1 pc
9019
Integrated dual-branch test cable kit w/
alligator clips and exible electronic probes
1 pc
9031 Small Multimeter Test Hooks
2 set
(4 pcs)
9052
USB Cable type A to type C 1 pc
9040 Hanging strap with magnet 1 pc
9041 Hanging hook 1 pc
ISO 17025 accredited calibration certicate 1 pc
Optional Accessories
Model number Description QTY Picture
9919-295 Carrying case 1 pc
9919EX-295 Carrying case 1 pc
9263 Protective Field Sleeve for ADT295 1 pc
ADT161 Intelligent digital pressure modules 1 pc
[1] Base model. All ADT295 models ship with the full standard accessory kit listed below, including the ISO 17025-accredited calibration certicate.
[2] Adds FOUNDATION Fieldbus communication on top of the base HART platform.
3) Adds Probus PA communication on top of HART and FOUNDATION Fieldbus.
Technical Specification
Signal Type
ADT295
Range Resolution Accuracy
Voltage Measurement
(Auto-Ranging)
-1 V ~ 1 V 10 μV 0.01% RD + 50 μV
1 V ~ 30 V 0.1 mV 0.01% RD + 1.5 mV
Current Measurement ± 30 mA 0.1 μA 0.01% RD + 1.5 μA
Current Output 0 mA ~ 24 mA 0.5 μA 0.01% RD + 1.2 μA
Loop Power Supply Output: 24 V ± 5%, Max load current: 30 mA
Ambient temperature: 20
°C
±10
°C
, 1-year accuracy guarantee
Notes:
Temperature coefcient: ± 5 ppm FS/°C when ambient temperature ranges from -20 °C ~ 8 °C and 38 °C ~ 50 °C, the guaranteed specication
temperature range: 8 °C ~ 38 °C
.
Voltage input range: -1 V ~ 30 V, input impedance > 20 MΩ
Current input & output impedance < 10 Ω, suitable for measuring transmitter TEST terminal current
Loop power: Max open-circuit voltage 24 V, driving capacity for 1 kΩ / 20 mA; power supply for the transmitters.
