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Additel 273Ex Handheld Pressure Calibrator

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Price: From $0.00 to $7,482.00
Manufacturer: ADDITEL

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Additel 273Ex Handheld Pressure 

  • 0.02%, 0.05% FS Accuracy
  • Intrinsically Safe
  • Field Switchable Pressure Module
  • Dual Digital Pressure Module Inputs
  • Color Touchscreen Display
  • Built-in Quick Test Task Feature
  • Built-in Barometer
  • Intuitive Smartphone Like Interface
  • Bluetooth and USB Communication
  • Optional HART Communication
  • Communicates with Additel's Link Mobile App

Additel's 273Ex is an intrinsically safe handheld multifunctional pressure calibrator with a color touchscreen, smartphone like interface, built-in quick test tasks and optional HART communications capability. This innovative Additel product drastically improves explosion-proof field testing and calibration. The Additel 273Ex has a built-in atmospheric pressure sensor, so that absolute pressure and the gauge pressure are easily facilitated. With three pressure module inputs, one switchable at the bottom and two digital inputs on the side, the user can configure the setup accordingly and easily meet the needs of pressure calibration and testing in virtually any environment.

Intrinsically Safe

ADT273Ex has passed the most stringent ATEX, IECEX, CSA, and UKCA intrinsic safety certifications from authoritative organizations. The explosion-proof level is Ex ia IIC T4 Ga. It can be widely used in potentially explosive gas environments, such as oil and gas platforms, refineries, chemical and petrochemical plants, pharmaceutical industry, energy and gas processing industry. Each intrinsically safe calibrator has an advance transflective color LCD display which has enhanced visibility when viewed in direct sunlight. No matter where your work takes you, these calibrators are up to the task.

A Modern User Experience:

Additel has gone above and beyond to provide our customers with the best possible experience when using this new and revolutionary calibrator. The color touchscreen display provides a refreshing and intuitive experience compared to other calibrators on the market. With an easy to navigate menu structure and fast touchscreen response, you will find the ADT273Ex calibrator simple yet powerful to use. The easy-to-read display isn’t just fun to use, but it’s built rugged to handle the demands of a busy technician in the field or the laboratory.

Optional HART Communication:

With support for HART communication protocols, the ADT273Ex Handheld Pressure Calibrator provides a pressure calibration solution for transmitters over a wide pressure range. The ADT273 is a highly portable device and can measure pressure precisely with a field switchable pressure sensor, as well as read the current or mV produced by a transducer. It can even supply an excitation voltage (loop power) to power sensors or transmitters during calibration.


Note: The ADT273Ex can be purchased without the ADT158Ex module if needed using the part numbers ADT273EX-NO or ADT273EX-NO-HART (includes HART Communication)

 Additel 273Ex Handheld Pressure Calibrator Datasheet

ADT226Ex/227Ex/273Ex/260Ex Battery MSDS

Functional Features
Scaling User can convert measured current, voltage and frequency values into pressure, temperature and flow values. Three conversion functions available: linearity, square and square root
Filtering Average sliding filter (sampling number: 1 ~ 50) First-order linear filter (First-order coefficient: 0.01 ~ 1)
Switch The measurement value will be automatically displayed at the moment the switch change of state. The latest 8 state changes will be stored in the memory.
Pressure Tare Tare value is set through the user interface
Pressure Stability Indicator Stability time and criteria is selectable


General Specifications
Input Channels Top: 1 electrical signal measurement channel, φ4mm banana jacks
Right side: 2 channels for external digital pressure modules, 5-core dedicated aviation plug
Bottom: embedded digital pressure module (model ADT158Ex), field switchable.
Internal: 1 embedded atmospheric pressure sensor
Barometric Accuracy ±55 Pa
Measurement Rate mV, V, mA & frequency: 3 times/sec
Pressure module: 1~10 times/sec selectable (3 as default)
Barometer: 1 time/sec
Power 4000mAh, 14.4Wh explosion-proof intelligent lithium battery, charging time = 6~8 hours, battery can be charged independently, typical working time 100 hours (measurement mode)
Environmental Guaranteed temperature range of technical specifications: (-10 ~ 50)°C
Operating temperature: (-20 ~ 50)°C
Storage temperature: (-30 ~ 70)°C
Humidity: 0% to 95% RH, non-condensing.
Altitude: 3000 meters
Warm-up Time 10 min to fully meet technical specifications
Port Protection Voltage 30V max
Explosion-proof Grade ATEX & IECEX: Ex ia IIC T4 Ga (Ta = -10°C ~ 50°C)
CSA: Class I, Division 1, Group A,B,C and D, T4 
Class I, Zone 0, AEx ia IIC T4 Ga
Ta = -20°Cto + 50°C Ex ia IIC T4 Ga
CE Certification TUV IEC61326, IEC61010
Rohs Compliance Rohs II Directive 2011/65/EU, EN50581:2012
Protection Level IP67, 1 meter drop test
Communication Isolate USB-Type C (slave), Bluetooth
Display 4.4-inch color display capacitive screen, transflective, with LED backlight
Size 6.97" x 4.13" x 2.04" (177 mm x 105 mm x 52 mm) which doesn't include bottom ADT158Ex.
Weight 1.98 lb (0.9 kg)


Electrical Specifications
Specification Range Accuracy Resolution Note
Voltage Measurement ±300mV 0.015%RDG + 0.005%FS 1uV Impedance: >100MΩ
±30V 0.015%RDG + 0.005%FS 0.1mV Impedance: >1MΩ
Current Measurement ±30mA 0.015%RDG + 0.005%FS 0.1uA Impedance: < 40Ω
Frequency Measurement 0.01~50000Hz (auto range) 0.005% RDG + 2 last digit 6-digit auto-resolution Min threshold voltage: 2.5V
Units: Hz, kHz, MHz, CPM, CPH, s, ms, us
Switch On-Off Measurement Inspection voltage: (3 ~ 30)V
Response speed: < 10ms, supports wet and dry switch
Pulse Count 0 ~ 9999999, optional rising edge and falling edge
Min threshold voltage: 2.5V
Loop Power 20V ± 10%, max output impedance: 320Ω, max load current: 25mA


Pressure Technichal Specifications
Pressure resolution 4, 5, or 6 digit resolution (user selectable)
Temperature Compensation -10°C~50 °C
Pressure Module Type Built-in digital pressure module: ADT158Ex, for more detailed information, please see ADT 158Ex datasheet. External digital pressure module: ADT161Ex, for more detailed information, please see ADT 161Ex datasheet.
Specifications Refer to the technical specification of the ADT158Ex and ADT161Ex
High Static Pressure and Differential Pressure Synthesis Index Two modules must be with the same range; Typical Differential pressure accuracy of 0.002%FS or 0.02%RD, whichever is greater when using two 0.02%FS external modules. Typical Differential pressure accuracy of 0.002%FS or 0.05%RD, whichever is greater when using two 0.05%FS external modules.


Gauge Pressure [1]
P/N Pressure Range Media [2] Accuracy (%FS) Burst Pressure
(psi) (bar)
V15 -15 -1 G 0.02
GP2 2 0.16 G 0.05
GP5 5 0.35 G 0.05
GP10 10 0.7 G 0.02
GP15 15 1 G 0.02
GP30 30 2 G 0.02
GP50 50 3.5 G , L 0.02
GP100 100 7 G , L 0.02
GP150 150 10 G , L 0.02
GP300 300 20 G , L 0.02
GP500 500 35 G , L 0.02
GP600 600 40 G , L 0.02
GP1K 1000 70 G , L 0.02
GP1.5K 1500 100 G , L 0.02
GP2K 2000 140 G , L 0.02
GP3K 3000 200 G , L 0.02
GP5K 5000 350 G , L 0.02
GP10K 10000 700 G , L 0.02
GP15K 15000 1000 G , L 0.05 2x
GP20K 20000 1400 G , L 0.05 1.5x
GP25K 25000 1600 G , L 0.05 1.5x
GP30K 30000 2000 G , L 0.05 1.5x
GP36K 36000 2500 G , L 0.05 1.5x
GP40K 40000 2800 G , L 0.05 1.35x
GP50K 50000 3500 G , L 0.1 1.2x
GP60K 60000 4200 G,L 0.1 1.1x
[1] Sealed gauge pressure for above 1000 psi
[2] G=Gas, L=Liquid



Compound Pressure
P/N Pressure Range Media Accuracy Pressure Rating
psi bar Burst Over Pressure
CP2 ±2 ±0.16 G 0.05% FS 3x 1.2x
CP5 ±5 ±0.35 G 0.02% FS 3x 1.2x
CP10 ±10 ±0.7 G 0.02% FS 3x 1.2x
CP15 ±15 ±1.0 G 0.02% FS 3x 1.2x
CP30 -15 to 30 -1 to 2.0 G 0.02% FS 3x 1.2x
CP50 -15 to 50 -1 to 3.5 G 0.02% FS 3x 1.2x
CP100 -15 to 100 -1 to 7.0 G,L 0.02% FS 3x 1.2x
CP300 -15 to 300 -1 to 20 G,L 0.02% FS 3x 1.2x
CP500 -15 to 500 -1 to 35 G,L 0.02% FS 3x 1.2x
CP600 -15 to 600 -1 to 40 G,L 0.02% FS 3x 1.2x
CP1K -15 to 1,000 -1 to 70 G,L 0.02% FS 3x 1.2x
CP2K -15 to 2,000 -1 to 140 G,L 0.02% FS 3x 1.2x
CP3K -15 to 3,000 -1 to 200 G,L 0.02% FS 3x 1.2x
CP5K -15 to 5,000 -1 to 350 G,L 0.02% FS 3x 1.2x
CP10K -15 to 10,000 -1 to 700 G,L 0.02% FS 2x 1.2x

Accessories Included
Model Number Description QTY
9811Ex-X 110V/220V external power adapter 1 pc
9704Ex Chargeable Li-ion battery 1 pc
9025 Test leads 1 set (3 pcs)
9040 Hanging strap 1 pc
9052Ex Ex USB Cable type A to type C (For Ex models only) 1 pc
1310402101 Module removal screwdriver 1 pc
  ISO 17025 accredited calibration certificate 1 pc


Optional Accessories
Model number Description
ADT158Ex Built-in digital pressure module (see Related products below ADT158Ex )
ADT161Ex External digital pressure module (see Related products below ADT161EX)
9060 Pressure module connection cable
9906A Hard carrying case for handheld instrument with accessories
9918-SC Soft carrying case, with space for handheld instrument, test leads, and accessories
9530-BASIC Additel/Acal Automated calibration software with asset management, basic version
9530-NET Additel/Acal Automated calibration software with asset management, network version, includes server installation and 1 user license

Related Products

Additel 158Ex Intelligent Digital Pressure Modules
Price: From $1,196.00 to $3,736.00
Additel 158Ex Intelligent Digital Pressure Modules
Pressure ranges to 60,000 psi (4,200 bar) Pressure measurement accuracy of 0.02% FS Intrinsically Safe (Ex) Fully temperature compensated accuracy ATEX certified intrinsically safe only with ADT260EX & ADT273EX
Additel ADT161 Intelligent Digital Pressure Modules
Price: Call for pricing
Additel ADT161 Intelligent Digital Pressure Modules
• Pressure ranges to 60,000 psi (4,200 bar) • Pressure measurement accuracy of 0.02% FS • Precision accuracy to 0.01% RD, 0.05% accuracy up to 40K psi • Intrinsically Safe (Ex) models available • Fully temperature compensated accuracy