Additel 273Ex Handheld Pressure Calibrator
- Intrinsically safe design with ATEX and IECEx certification
- Pressure accuracy of 0.02% or 0.05% FS, depending on module and range
- Field-replaceable ADT158Ex pressure module
- Two external ADT161Ex digital pressure module inputs
- 4.4-inch color touchscreen readable outdoors
- Built-in quick test task function
- Integrated barometric sensor
- Intuitive smartphone-style interface
- Bluetooth and USB Type-C communication
- Optional HART communication
- Compatible with the Additel Link app
- ISO/IEC 17025 calibration certificate with data included
Accuracy depends on configuration; some high-pressure modules have 0.1% FS accuracy. HART is an ordering option.
Intrinsically safe pressure calibration in the field
The Additel 273Ex combines pressure measurement, electrical measurement and loop power in a handheld instrument. Its intrinsically safe design supports testing, maintenance and calibration in hazardous gas environments within the scope of its certification.
Flexible pressure module configuration
The bottom ADT158Ex module can be replaced in the field. Two side digital inputs support external ADT161Ex modules to extend pressure coverage. An integrated barometric sensor supports conversion between gauge and absolute pressure. Measurement range and accuracy depend on the selected module.
Convenient field operation
The 4.4-inch color touchscreen is readable outdoors. An intuitive interface and built-in quick test tasks help with calibration work. Bluetooth, USB and the Additel Link app provide connectivity; HART communication is available as an option.
Ordering configuration
Select the ADT273Ex or the version with optional HART, then specify the pressure module, range and connection. Configurations without an ADT158Ex module are available; external ADT161Ex modules are selected separately.
Standard accessories
- 9811Ex-X power adapter and 9704Ex battery.
- 9025 test leads (3 pieces), 9040 magnetic hanging strap and 9052Ex USB cable.
- ISO/IEC 17025 calibration certificate with data.
Optional accessories
ADT158Ex and ADT161Ex pressure modules, 9060 connection cable, 9919EX transport case and 9918-SC soft case. Availability and compatibility are confirmed for the ordered configuration.
Use in hazardous areas must comply with the certification, manufacturer instructions and requirements for the associated modules, battery and accessories.
| Manufacturer / Model | Additel / ADT273Ex |
|---|---|
| Instrument type | Intrinsically safe handheld pressure calibrator |
| Intrinsic safety certification | ATEX, IECEx: Ex ia IIC T4 Ga; ambient temperature −20 to 50 °C |
| Pressure inputs | One field-replaceable ADT158Ex module position, two external ADT161Ex digital module inputs and an integrated barometer |
| Pressure range | Optional modules cover vacuum to 60,000 psi (4,200 bar). This is the module selection range, not a single built-in measuring range. |
| Pressure accuracy | 0.02%, 0.05% or 0.1% FS depending on module and range; refer to the datasheet range selection table |
| Barometer | Accuracy: ±55 Pa |
| Pressure resolution / reading rate | 4, 5 or 6 digits; 1–10 readings/second, default 3 readings/second |
| mV measurement | ±300 mV; accuracy ±(0.015% reading + 15 µV); resolution 1 µV |
| V measurement | ±30 V; accuracy ±(0.015% reading + 1.5 mV); resolution 0.1 mV |
| Current measurement | ±30 mA; accuracy ±(0.015% reading + 1.5 µA); resolution 0.1 µA |
| Frequency measurement | 0.01–50,000 Hz; accuracy ±(0.005% reading + 2 least significant digits) |
| Switch test | Dry or wet contacts; response time <10 ms |
| Loop power | 22 V ±10%; maximum 25 mA; load 320 Ω |
| Display | 4.4-inch capacitive color touchscreen, transflective technology and LED backlight |
| Communication | Isolated USB Type-C and Bluetooth; HART optional |
| Battery | Intrinsically safe Li-ion, 4,000 mAh / 14.4 Wh; approximately 6-hour charging; typical 100-hour runtime in measurement mode |
| Environment | Operating −20 to 50 °C; guaranteed specifications −10 to 50 °C; 0–95% RH, non-condensing |
| Protection / warm-up | IP67; 1 m drop test; 10-minute warm-up |
| Dimensions / weight | 177 × 105 × 52 mm, excluding the bottom ADT158Ex module; 0.75 kg |
FS means full scale. Specifications are summarized from the Additel datasheet, revision 20260514. Refer to the manufacturer documentation for detailed conditions and range tables.
- Field testing and calibration of pressure gauges, sensors and transmitters.
- Current and voltage measurement, pressure switch testing and process loop checks.
- Instrument maintenance in oil and gas, chemical plants and locations requiring intrinsic safety within the certification scope.
- Work with HART transmitters when the HART option is selected.
- Bluetooth connectivity with the Additel Link app.
