The Additel AccuMac AM 1210 is a high-precision Type S reference thermocouple designed for accurate temperature measurement and calibration in laboratories, industrial facilities and temperature metrology applications.

With a temperature range from 0 °C to 1300 °C, excellent short-term stability of less than 0.2 °C at 1084.62 °C and high-quality platinum and platinum-rhodium thermoelement wires, the Additel AccuMac AM 1210 provides reliable performance for demanding high-temperature calibration applications.

The reference thermocouple is manufactured using carefully selected reference-grade materials. All thermocouple wires and components undergo special cleaning and annealing procedures to ensure excellent stability and reproducibility.

The Additel AccuMac AM 1210 is particularly suitable for comparison calibration of industrial thermocouples in temperature calibration furnaces.

Two probe lengths are available to accommodate different calibration requirements.

For professional temperature calibration equipment and metrological traceability, visit the europascal Calibration Service.

Your Benefits at a Glance

• Temperature range from 0 °C to 1300 °C
• Type S reference thermocouple
• Platinum and platinum-rhodium thermoelement wires
• Short-term stability better than 0.2 °C at 1084.62 °C
• Excellent long-term stability
• Typical long-term drift below 0.5 °C at 1210 °C after one year
• High-quality reference-grade materials
• Special cleaning and annealing procedures
• Ceramic protective sheath made of alumina
• Thermocouple wire diameter of 0.5 mm
• Probe diameter of 6 mm
• Available probe lengths of 300 mm and 500 mm
• Suitable for high-temperature comparison calibration
• Individual test report with measurement data
• Optional ISO/IEC 17025 accredited calibration
• Protective carrying case included
• Suitable for calibration laboratories and industrial applications
• Professional calibration support from europascal

Temperature Range from 0 °C to 1300 °C

The Additel AccuMac AM 1210 provides a temperature measurement range of:

0 °C to 1300 °C

This wide temperature range makes the reference thermocouple suitable for numerous industrial and laboratory applications.

Typical calibration temperatures include:

• 100 °C
• 200 °C
• 400 °C
• 600 °C
• 800 °C
• 1000 °C
• 1100 °C
• 1200 °C
• 1300 °C

The AM 1210 is particularly useful for calibrating industrial thermocouples operating at elevated temperatures.

It can be used in suitable temperature calibration furnaces to compare the output of industrial thermocouples against a calibrated reference.

For accurate measurements, the reference thermocouple must be used with a suitable thermocouple readout and an appropriate reference junction arrangement.

Type S Reference Thermocouple

The Additel AccuMac AM 1210 is a Type S thermocouple.

Type S thermocouples use the following thermoelement materials:

Positive thermoelement: Platinum with 10% rhodium

Negative thermoelement: Platinum

This material combination provides excellent stability at elevated temperatures.

Type S thermocouples are widely used in temperature metrology, calibration laboratories and industrial high-temperature measurement.

Compared with many base-metal thermocouples, noble-metal thermocouples provide improved stability under suitable operating conditions.

The Additel AccuMac AM 1210 is manufactured from reference-grade platinum and platinum-rhodium alloys.

These materials are carefully selected to provide stable thermoelectric characteristics.

Excellent Short-Term Stability

The Additel AccuMac AM 1210 provides excellent short-term temperature stability.

The manufacturer specifies:

Less than 0.2 °C at 1084.62 °C

This temperature corresponds to the freezing point of copper.

Short-term stability describes the variation of the thermocouple’s thermoelectric characteristics during a defined period.

Excellent stability is essential for accurate comparison calibration.

A stable reference thermocouple helps reduce measurement uncertainty when calibrating industrial thermocouples.

The actual measurement uncertainty also depends on the calibration furnace, reference junction, measuring instrument and calibration procedure.

Excellent Long-Term Stability

The Additel AccuMac AM 1210 is designed for reliable long-term performance.

The manufacturer specifies a typical long-term drift of:

Less than 0.5 °C at 1210 °C after one year of typical use

Long-term drift describes changes in the thermocouple’s thermoelectric characteristics over time.

These changes can result from thermal exposure, contamination, mechanical stress and material aging.

The AM 1210 uses high-quality thermoelement materials and carefully controlled manufacturing processes to minimize these effects.

Actual long-term drift depends on operating conditions, handling and maintenance.

Regular recalibration is recommended for demanding temperature metrology applications.

Reference-Grade Platinum and Platinum-Rhodium Wires

The Additel AccuMac AM 1210 is manufactured using reference-grade thermoelement wires.

The thermocouple wire diameter is:

0.5 mm

The materials are selected to provide stable thermoelectric characteristics at elevated temperatures.

High-quality platinum and platinum-rhodium alloys help minimize changes in thermoelectric output during operation.

The thermoelement wires are specially cleaned and annealed before assembly.

After assembly, the completed reference thermocouple undergoes additional annealing and testing.

This manufacturing process helps ensure consistent performance and compliance with the manufacturer’s specified tolerances.

Carefully Controlled Thermoelectric Characteristics

Each Additel AccuMac AM 1210 is tested against defined thermoelectric voltage criteria.

The manufacturer specifies the following relationships.

Copper Freezing Point

At 1084.62 °C:

E(tCu) = 10.575 mV ± 0.015 mV

Aluminium Freezing Point

At the aluminium freezing point:

E(tAl) = 5.860 + 0.37 × [E(tCu) − 10.575] mV ± 0.005 mV

Zinc Freezing Point

At the zinc freezing point:

E(tZn) = 3.447 + 0.18 × [E(tCu) − 10.575] mV ± 0.005 mV

These relationships are used to characterize the thermoelectric performance of the reference thermocouple.

The specified values are manufacturing acceptance criteria and must not be confused with the measurement uncertainty of an individual calibration.

High-Quality Alumina Protective Sheath

The Additel AccuMac AM 1210 features a protective sheath made of alumina.

Alumina is a ceramic material suitable for high-temperature applications.

The protective sheath helps protect the thermoelement wires from mechanical damage and environmental influences.

The manufacturer specifies a sheath diameter of:

6 mm

The ceramic construction is particularly suitable for use in temperature calibration furnaces.

Careful handling is recommended because ceramic sheaths can be damaged by mechanical impact or excessive thermal stress.

The reference thermocouple should be inserted and removed according to the manufacturer’s operating recommendations.

Two Available Probe Lengths

The Additel AccuMac AM 1210 is available in two versions.

Additel AccuMac AM 1210-12

The AM 1210-12 features a probe length of:

300 mm

Its total thermocouple wire length is:

1000 mm

This version is suitable for calibration applications requiring a shorter reference probe.

Additel AccuMac AM 1210-20

The AM 1210-20 features a probe length of:

500 mm

Its total thermocouple wire length is:

1200 mm

The longer version is particularly suitable for applications requiring greater immersion depth.

Both versions feature a sheath diameter of 6 mm.

The appropriate probe length should be selected according to the calibration furnace, required immersion depth and measurement uncertainty.

Ideal for Thermocouple Comparison Calibration

The Additel AccuMac AM 1210 is designed for comparison calibration of industrial thermocouples.

During comparison calibration, the reference thermocouple and the device under test are placed in a stable temperature environment.

A suitable calibration furnace generates the required temperature.

The thermoelectric output of the reference thermocouple is measured using a precision thermometer readout.

The output of the industrial thermocouple is then compared with the reference temperature.

This procedure allows the deviation of the device under test to be determined.

The Additel AccuMac AM 1210 is particularly suitable for use as a reference sensor in high-temperature calibration furnaces.

Compatible with Temperature Calibration Furnaces

The Additel AccuMac AM 1210 can be used with suitable temperature calibration furnaces.

For example, it can serve as a reference thermocouple in compatible Additel high-temperature calibration systems.

The reference thermocouple must be installed in a suitable calibration insert or protection arrangement.

The selected furnace must provide sufficient temperature stability and uniformity for the required calibration uncertainty.

The reference thermocouple itself does not generate or control temperature.

It measures temperature through its thermoelectric voltage and requires an appropriate measurement instrument.

Importance of Reference Junction Compensation

Accurate thermocouple measurements require consideration of the reference junction temperature.

The voltage generated by a thermocouple depends on the temperature difference between the measuring junction and the reference junction.

For accurate measurements, the reference junction temperature must be known or controlled.

This can be achieved using a suitable reference junction system or an appropriate measuring instrument with calibrated cold junction compensation.

For demanding calibration applications, the reference junction uncertainty must be included in the measurement uncertainty budget.

Traceable Calibration and Documentation

The Additel AccuMac AM 1210 is supplied with a test report containing measurement data.

This documentation provides information about the thermoelectric characteristics of the individual reference thermocouple.

An optional ISO/IEC 17025 accredited calibration is available.

Accredited calibration provides documented measurement results with stated measurement uncertainties and metrological traceability.

The required calibration points and uncertainty should be selected according to the intended application.

Regular recalibration helps verify the long-term performance of the reference thermocouple.

Technical Highlights

Calibration Service by europascal

Regular calibration is essential for maintaining reliable and traceable temperature measurements.

europascal supports customers with professional temperature calibration equipment, technical expertise and calibration services.

When the Additel AccuMac AM 1210 is used as a reference thermocouple, the measurement uncertainty must be evaluated according to the complete calibration procedure.

Relevant uncertainty contributions may include:

• Calibration uncertainty of the reference thermocouple
• Long-term drift
• Short-term stability
• Thermoelectric inhomogeneity
• Reference junction temperature
• Thermocouple voltage measurement
• Calibration furnace temperature stability
• Temperature uniformity
• Immersion depth
• Thermal conduction effects
• Measurement repeatability

These uncertainty contributions must be evaluated according to the applicable calibration procedure.

For professional calibration services and metrological traceability, visit the europascal Calibration Service.

Why Choose the Additel AccuMac AM 1210?

The Additel AccuMac AM 1210 combines high-quality reference-grade materials with excellent temperature stability and reliable thermoelectric characteristics.

Its temperature range from 0 °C to 1300 °C makes it suitable for numerous high-temperature calibration applications.

The Type S thermoelement design provides excellent stability when used under appropriate conditions.

Short-term stability better than 0.2 °C at 1084.62 °C makes the instrument particularly suitable for demanding comparison calibrations.

The alumina protective sheath provides protection for the sensitive thermoelement wires.

Two available probe lengths allow users to select the appropriate version for their calibration setup.

Individual testing and optional accredited calibration support metrological traceability.

For calibration laboratories and industrial users requiring a reliable high-temperature reference thermocouple, the Additel AccuMac AM 1210 provides an excellent combination of stability, quality and flexibility.

Typical Applications for the Additel AccuMac AM 1210

Typical applications include:

• High-temperature calibration
• Industrial thermocouple calibration
• Type S thermocouple calibration
• Reference temperature measurement
• Comparison calibration
• Temperature calibration furnaces
• Calibration laboratories
• Industrial quality assurance
• Temperature metrology
• Furnace temperature measurement
• Industrial process instrumentation
• Research and development
• High-temperature testing
• Calibration of industrial temperature sensors
• Reference standard applications

The combination of high-quality thermoelement materials, excellent temperature stability and reliable performance makes the Additel AccuMac AM 1210 a professional solution for demanding high-temperature calibration applications.

Find more Additel products at europascal.

Manufacturer information for the Additel AccuMac AM 1210 can be found on the official Additel website.

Download Datasheet