The Additel ADT 286 is a high precision multifunction reference thermometer readout designed for professional temperature calibration, precision measurements and multichannel data acquisition.
Combining the capabilities of a reference thermometer readout, an 8½ digit digital multimeter and a powerful data acquisition system, the Additel ADT 286 provides a versatile solution for modern calibration laboratories.
The instrument supports standard platinum resistance thermometers (SPRTs), platinum resistance thermometers (PRTs), industrial resistance temperature detectors (RTDs), thermistors and thermocouples.
The base unit features two precision measurement channels. With optional scanner modules, the system can be expanded to up to 82 measurement channels.
This makes the Additel ADT 286 suitable for individual reference measurements, automated sensor calibration, temperature mapping and comprehensive laboratory measurement applications.
The instrument offers resistance ratio measurement accuracy down to 1 ppm on channel 1, depending on the measurement configuration and specified conditions.
A large 10.1 inch color touchscreen, integrated calibration applications and extensive communication capabilities simplify operation.
USB, Ethernet, WiFi and Bluetooth connectivity allow flexible integration into laboratory environments.
The Additel ADT 286 can also control compatible temperature sources automatically, collect measurement data and calculate sensor calibration coefficients.
europascal provides professional temperature calibration equipment, technical support and suitable calibration solutions for demanding metrological applications.
For additional information about calibration services, visit the europascal Calibration Service.
Your Benefits at a Glance
- High precision multifunction reference thermometer readout
- Two precision measurement channels in the base unit
- Expandable to up to 82 measurement channels
- Resistance ratio accuracy down to 1 ppm on channel 1
- Integrated 8½ digit digital multimeter
- Measurement of SPRTs, PRTs and RTDs
- Support for thermistors and thermocouples
- Support for ITS 90 temperature characteristics
- Support for Callendar Van Dusen equations
- Custom sensor calibration coefficients
- Automatic current reversal for resistance measurements
- Auto Zero Power function for self heating investigations
- Measurement rates up to 10 channels per second
- Automatic control of compatible temperature sources
- Automated temperature probe calibration
- Automatic calculation of calibration coefficients
- Temperature mapping and chamber qualification
- Integrated data logging functions
- Large 10.1 inch color touchscreen
- Approximately 10 GB internal storage
- USB communication
- Ethernet connectivity
- WiFi and Bluetooth communication
- Optional temperature scanner modules
- Optional process scanner modules
- ISO/IEC 17025 accredited calibration data included according to the manufacturer
- Professional support from europascal
Ideal for Demanding Calibration Applications
The Additel ADT 286 is designed for calibration laboratories requiring excellent measurement performance and efficient workflows.
Accurate temperature measurement is essential in industrial manufacturing, pharmaceutical production, research laboratories and quality assurance.
The Additel ADT 286 provides precise electrical measurements and converts the signals of connected temperature sensors into temperature values using the appropriate sensor characteristics.
Unlike a conventional thermometer, the instrument does not contain a permanently integrated temperature probe.
Instead, users can connect suitable external reference thermometers and industrial temperature sensors.
This provides flexibility because the most appropriate sensor can be selected for each measurement application.
The instrument is suitable for both individual high precision measurements and extensive multichannel calibration procedures.
Two Precision Measurement Channels
The Additel ADT 286 base unit features two precision measurement channels.
These channels can be used with high quality reference thermometers such as SPRTs and PRTs.
The instrument supports precise resistance measurements and resistance ratio measurements.
For demanding reference thermometer applications, an external precision resistance standard can be connected.
Additel offers compatible reference resistance standards with nominal values of 25 Ω and 100 Ω.
These standards support high precision resistance ratio measurements.
The achievable measurement uncertainty depends on the selected resistance range, reference resistor, measurement configuration and environmental conditions.
Expandable to 82 Measurement Channels
One of the most important advantages of the Additel ADT 286 is its modular design.
The base unit provides two precision measurement channels.
Optional scanner modules allow the system to be expanded to a maximum of:
82 measurement channels
This capability is particularly useful when several temperature sensors must be measured simultaneously.
Typical applications include temperature mapping, chamber qualification, temperature uniformity studies and automated batch calibration.
The maximum scanning speed is:
10 channels per second
The actual scanning performance depends on the measurement configuration and selected functions.
Optional Temperature Scanner Module
The optional temperature scanner module extends the measurement capabilities of the Additel ADT 286.
A temperature scanner module supports measurement of up to:
10 resistance temperature sensors
or
20 thermocouple channels
depending on the sensor configuration.
The module provides flexible connections for different temperature sensor types.
It can be installed directly on the Additel ADT 286 or connected remotely using suitable accessories.
This modular arrangement allows the measurement system to be adapted to different laboratory applications.
Optional Process Scanner Module
In addition to temperature scanner modules, Additel offers a process scanner module.
This module is designed for applications involving industrial process instrumentation.
It supports measurement tasks involving temperature transmitters and switches.
The process scanner module also provides loop power for compatible transmitters.
This makes the Additel ADT 286 suitable for complete temperature measurement system testing.
The process module is optional and is not included with every configuration of the base instrument.
High Precision Resistance Measurements
The Additel ADT 286 is particularly suitable for precise resistance measurements.
Resistance thermometers determine temperature through the temperature dependent electrical resistance of the sensing element.
For high accuracy measurements, the electrical resistance must be determined with very low measurement uncertainty.
The Additel ADT 286 supports precise resistance measurement and resistance ratio techniques.
The manufacturer specifies resistance ratio accuracy down to:
1 ppm
for channel 1 under the applicable conditions.
Resistance ratio measurements are particularly useful when working with standard platinum resistance thermometers.
SPRT and PRT Measurements
The Additel ADT 286 supports standard platinum resistance thermometers and precision platinum resistance thermometers.
These sensors are widely used as reference thermometers in calibration laboratories.
The instrument supports temperature calculations based on individual sensor characteristics.
Supported methods include:
- ITS 90 coefficients
- Callendar Van Dusen equations
- Standard resistance thermometer characteristics
- User defined sensor coefficients
Individual calibration coefficients can be stored in the instrument.
This allows measured resistance values to be converted directly into corresponding temperature values.
For precision temperature measurements, the uncertainty of the connected reference thermometer must also be considered.
Automatic Current Reversal
High precision resistance measurements can be influenced by unwanted thermoelectric voltages.
These voltages may occur at electrical connections when temperature differences are present.
The Additel ADT 286 supports automatic current reversal.
By reversing the measurement current, unwanted thermoelectric voltage contributions can be reduced.
This improves the reliability of precision resistance measurements.
The function is particularly useful when measuring SPRTs and other high accuracy resistance thermometers.
Auto Zero Power Function
The Additel ADT 286 includes an Auto Zero Power function.
This feature is designed to investigate the self heating behavior of resistance thermometers.
When current flows through a resistance thermometer, electrical power is dissipated in the sensing element.
This can cause the sensor temperature to increase slightly.
The resulting self heating effect can contribute to the measurement uncertainty.
The Auto Zero Power function supports the evaluation of this effect.
This is particularly important in high precision thermometry, where even small temperature deviations can be significant.
Thermocouple Measurements
The Additel ADT 286 also supports thermocouple measurements.
Thermocouples generate a thermoelectric voltage depending on the temperature difference between the measuring junction and the reference junction.
The instrument measures the thermoelectric voltage and converts it into temperature using the selected thermocouple characteristic.
Additel specifies support for:
15 thermocouple types
The instrument includes an extensive library of standard thermocouple characteristics.
With suitable scanner modules, multiple thermocouples can be measured simultaneously.
This makes the Additel ADT 286 suitable for thermocouple calibration and multichannel temperature monitoring.
Cold Junction Compensation
Accurate thermocouple measurements require suitable cold junction compensation.
The thermoelectric voltage generated by a thermocouple depends on the temperature difference between the measuring junction and the reference junction.
The Additel ADT 286 temperature scanner modules provide integrated cold junction compensation.
This allows the instrument to account for the temperature at the electrical connection terminals.
For demanding calibration applications, the uncertainty of the cold junction compensation must be included in the measurement uncertainty budget.
Integrated 8½ Digit Digital Multimeter
The Additel ADT 286 integrates an 8½ digit digital multimeter.
This provides additional electrical measurement capabilities beyond temperature measurement.
The multimeter supports precise measurements of:
- DC voltage
- DC current
- DC resistance
The integrated multimeter makes the instrument suitable for electrical measurements associated with temperature calibration.
For example, a temperature transmitter can be evaluated by measuring the reference temperature and the corresponding electrical output signal.
The digital multimeter functions can reduce the need for additional external measuring instruments.
Automatic Temperature Source Control
The Additel ADT 286 supports automatic control of compatible temperature sources.
The instrument includes drivers for selected Additel temperature calibrators and temperature sources from other manufacturers.
Compatible equipment can be connected using the available communication interfaces.
The Additel ADT 286 can automatically adjust the temperature source to predefined calibration setpoints.
Once the required temperature stability has been achieved, the instrument can collect measurement data.
This provides an efficient solution for automated temperature calibration.
For temperature sources that are not supported by the existing driver library, custom communication drivers can be configured.
Automated Temperature Probe Calibration
The Additel ADT 286 includes applications for automated temperature probe calibration.
Users can define calibration procedures with several temperature points.
The instrument can control compatible temperature sources, monitor stability and record the measurement results.
It can also calculate calibration coefficients for compatible temperature sensors.
Typical functions include:
- Automatic temperature setpoint control
- Monitoring of temperature stability
- Measurement of reference thermometers
- Measurement of multiple devices under test
- Automatic data acquisition
- Calculation of calibration coefficients
- Storage of calibration results
- Export of measurement data
These capabilities help reduce manual work during repeated calibration procedures.
Temperature Mapping and Chamber Qualification
With optional scanner modules, the Additel ADT 286 is suitable for temperature mapping applications.
Multiple temperature sensors can be positioned at different locations within a temperature controlled environment.
The instrument records the temperature values simultaneously or sequentially according to the selected measurement configuration.
Typical applications include:
- Climate chambers
- Temperature chambers
- Refrigerators
- Freezers
- Calibration baths
- Dry block calibrators
- Temperature furnaces
- Industrial production equipment
Temperature mapping can be used to investigate spatial temperature differences, temperature stability and thermal uniformity.
The recorded data supports the evaluation of temperature controlled equipment.
Data Logging and Measurement Analysis
The Additel ADT 286 includes extensive data logging capabilities.
Measurement data can be recorded and stored for subsequent evaluation.
The manufacturer specifies approximately:
10 GB internal storage
The instrument supports measurement analysis and graphical presentation of recorded values.
This is particularly useful for long term temperature monitoring and multichannel measurement applications.
The available communication interfaces allow measurement data to be transferred to external systems.
Large 10.1 Inch Touchscreen
The Additel ADT 286 features a large:
10.1 inch color touchscreen
The touchscreen provides an intuitive interface for configuring measurement channels, selecting sensor types and performing calibration procedures.
Measurement values can be displayed clearly, even when several channels are used.
The graphical interface simplifies complex measurement tasks and reduces the effort required for instrument configuration.
Communication Interfaces
The Additel ADT 286 offers several communication options.
These include:
- USB
- Ethernet RJ45
- WiFi
- Bluetooth
The available interfaces allow the instrument to be integrated into laboratory networks and automated calibration systems.
Communication with compatible temperature sources enables automatic calibration procedures.
The interfaces also support data transfer and instrument configuration.
Technical Highlights
| Specification | Additel ADT 286 |
|---|---|
| Manufacturer | Additel |
| Model | ADT 286 |
| Product type | Multifunction Reference Thermometer Readout |
| Precision channels in base unit | 2 |
| Maximum measurement channels | 82 |
| Maximum scanning speed | 10 channels per second |
| Supported sensors | SPRT, PRT, RTD, thermistor, thermocouple |
| Resistance ratio accuracy | Down to 1 ppm on channel 1 |
| Digital multimeter | 8½ digits |
| Thermocouple types | 15 |
| Temperature scanner module | Optional |
| Process scanner module | Optional |
| Temperature source control | Supported |
| Automatic probe calibration | Supported |
| Temperature mapping | Supported |
| Data logging | Integrated |
| Auto Zero Power | Supported |
| Automatic current reversal | Supported |
| ITS 90 characteristics | Supported |
| Callendar Van Dusen | Supported |
| Display | 10.1 inch color touchscreen |
| Internal storage | Approximately 10 GB |
| Communication | USB, Ethernet, WiFi, Bluetooth |
| Operating temperature | 0 °C to 50 °C |
| Full accuracy ambient range | 18 °C to 28 °C |
| Warm up time | Approximately 90 minutes |
| Weight | Approximately 8.4 kg |
| Calibration | ISO/IEC 17025 accredited calibration data according to manufacturer |
Calibration Service by europascal
Regular calibration is essential for maintaining reliable temperature measurements.
europascal supports customers with professional calibration services for temperature measuring instruments and calibration equipment.
When using the Additel ADT 286 as a reference thermometer readout, the overall measurement uncertainty depends on the electrical measurement performance, the connected temperature sensor and its calibration.
Additional uncertainty contributions may arise from sensor self heating, connection resistance, thermal conditions and the selected measurement configuration.
For professional calibration services and metrological traceability, visit the europascal Calibration Service.
europascal also provides technical support in selecting suitable reference thermometers, temperature calibration equipment and measurement accessories.
Why Choose the Additel ADT 286?
The Additel ADT 286 combines precision temperature measurement, multichannel data acquisition and automated calibration functions in one instrument.
Its two precision measurement channels make it suitable for demanding reference thermometer applications.
Optional scanner modules expand the system to a maximum of 82 measurement channels.
This provides flexibility for laboratories that perform individual reference measurements as well as extensive multichannel calibration procedures.
The integrated 8½ digit digital multimeter extends the instrument’s capabilities to electrical measurement applications.
Automatic temperature source control and calibration applications help simplify repeated calibration procedures.
Support for ITS 90 coefficients, Callendar Van Dusen equations and user defined sensor characteristics makes the instrument suitable for a wide range of temperature sensors.
The large touchscreen, integrated data logging and modern communication interfaces support efficient laboratory workflows.
For professional calibration laboratories requiring a versatile and expandable temperature measurement system, the Additel ADT 286 provides an excellent combination of measurement performance, automation and flexibility.
europascal supports customers with professional temperature calibration equipment, technical advice and calibration services.
Typical Calibration Applications with the Additel ADT 286
The Additel ADT 286 is suitable for numerous professional temperature calibration applications.
Typical applications include:
- SPRT reference thermometer measurements
- Pt25 and Pt100 calibration
- Industrial RTD calibration
- Thermistor measurements
- Thermocouple calibration
- Temperature transmitter testing
- Temperature switch testing
- Automated sensor calibration
- Temperature mapping
- Chamber qualification
- Temperature uniformity measurements
- Temperature stability investigations
- Calibration bath monitoring
- Dry block calibrator evaluation
- Temperature furnace monitoring
- Laboratory data acquisition
The combination of precision measurement, modular channel expansion, integrated data logging and automatic temperature source control makes the Additel ADT 286 a versatile solution for modern temperature calibration laboratories.
Weitere Produkte von Additel finden Sie hier.
Herstellerinformationen zum Additel ADT 286 finden Sie auf der offiziellen Webseite von Additel.
