The AMETEK CTC-350 is a compact and portable dry block temperature calibrator designed for accurate, efficient and reliable temperature sensor calibration in laboratories, industrial facilities and field service applications.
With a temperature range from 28 °C to 350 °C, excellent temperature stability of ±0.05 °C and fast heating performance, the AMETEK CTC-350 provides a practical solution for professional temperature calibration.
The instrument combines advanced temperature control technology with intuitive operation, interchangeable calibration inserts and a lightweight design.
Weighing only 5 kg, the AMETEK CTC-350 is particularly suitable for mobile calibration applications.
The calibrator is ideal for checking resistance temperature detectors (RTDs), Pt100 sensors, thermocouples, digital thermometers and temperature switches.
Depending on the selected configuration, an external reference thermometer can be connected to improve temperature measurement accuracy.
europascal offers professional temperature calibration equipment, technical advice and calibration services for industrial and laboratory applications.
Your Benefits at a Glance
- Temperature range from 28 °C to 350 °C
- Temperature accuracy of ±0.45 °C at 350 °C using the internal reference
- Accuracy of ±0.25 °C with the specified external reference sensor
- Excellent temperature stability of ±0.05 °C
- Fast heating from 23 °C to 350 °C in approximately 6 minutes
- Cooling from 350 °C to 100 °C in approximately 20 minutes
- Typical stabilization time of 10 minutes
- Lightweight construction weighing only 5 kg
- Interchangeable calibration inserts
- Calibration well diameter of 26 mm
- Immersion depth of 115 mm
- Large color display
- USB communication interface
- Automatic temperature stepping
- Temperature switch testing
- Mains Power Variance Immunity technology
- Optional external reference thermometer input
- Suitable for laboratory and field calibration
Temperature Range from 28 °C to 350 °C
The AMETEK CTC-350 provides a temperature range of:
28 °C to 350 °C
The minimum achievable calibration temperature is approximately 5 °C above ambient temperature.
This means that the lowest available temperature depends on the environmental conditions.
Typical calibration temperatures include 50 °C, 100 °C, 150 °C, 200 °C, 250 °C, 300 °C and 350 °C.
The instrument is particularly suitable for temperature sensors used in industrial heating systems, process instrumentation, manufacturing and quality assurance.
Its wide temperature range allows users to perform multi-point calibration procedures using a single compact instrument.
High Temperature Accuracy
The AMETEK CTC-350 provides reliable temperature accuracy for routine calibration applications.
Accuracy with Internal Reference
The manufacturer specifies:
±0.40 °C at 200 °C
±0.45 °C at 350 °C
These values apply under the manufacturer’s defined operating conditions.
Accuracy with External Reference
When using the specified STS-120-A-935 reference sensor, the manufacturer specifies:
±0.25 °C across the operating range
This functionality is available with the CTC-350C configuration.
The external reference sensor measures the temperature within the calibration insert.
This allows more accurate comparison measurements than relying exclusively on the internal temperature indication.
Excellent Temperature Stability
The AMETEK CTC-350 provides excellent temperature stability of:
±0.05 °C
Temperature stability describes the temperature variation over time under defined operating conditions.
Stable temperatures are essential for reliable sensor calibration.
The manufacturer evaluates stability after the stability indicator has been active for ten minutes, followed by a 30-minute measurement period.
For demanding calibration applications, the stability of the complete measurement setup should be considered when calculating measurement uncertainty.
Fast Heating Performance
One of the major advantages of the AMETEK CTC-350 is its fast heating performance.
The manufacturer specifies a typical heating time of:
6 minutes from 23 °C to 350 °C
This allows technicians to reach common calibration temperatures quickly.
Fast heating is particularly useful when performing multiple calibration procedures during maintenance or production operations.
The reduced waiting time improves efficiency and minimizes equipment downtime.
Efficient Cooling Performance
The AMETEK CTC-350 also provides efficient cooling performance.
Typical cooling times include:
| Temperature Change | Cooling Time |
|---|---|
| 350 °C to 100 °C | 20 minutes |
| 100 °C to 50 °C | 14 minutes |
Efficient cooling allows calibration procedures to be performed at several temperature points.
The actual cooling time depends on ambient conditions, sensor loading and the selected calibration insert.
Excellent Temperature Homogeneity
The AMETEK CTC-350 provides good radial temperature homogeneity.
The manufacturer specifies:
0.02 °C at 200 °C
0.04 °C at 350 °C
These values describe temperature differences between calibration holes under specified conditions.
Good radial homogeneity is particularly important when calibrating a reference thermometer and a device under test simultaneously.
It helps minimize temperature differences between the sensors.
Interchangeable Calibration Inserts
The AMETEK CTC-350 uses interchangeable calibration inserts.
These allow temperature sensors with different diameters to be accommodated.
The manufacturer specifies:
| Specification | Value |
|---|---|
| Calibration well diameter | 26 mm |
| Insert outer diameter | 25.7 mm |
| Insert length | 120 mm |
| Immersion depth | 115 mm |
Different insert configurations are available for metric and imperial temperature sensors.
The appropriate insert should be selected according to the diameter of the sensor being calibrated.
Good thermal contact between the sensor and insert helps minimize temperature measurement errors.
Compact and Portable Design
The AMETEK CTC-350 is designed for mobile temperature calibration.
The instrument weighs approximately:
5 kg
Its dimensions are:
248 × 148 × 305 mm
The compact construction makes it suitable for transportation between different measurement locations.
The integrated carrying handle is positioned away from the heating area.
This improves handling during field calibration.
The AMETEK CTC-350 is particularly useful for maintenance technicians who need to verify temperature sensors directly at industrial installations.
Large Color Display
The AMETEK CTC-350 features a large color display.
The display provides clear information about the calibration process.
Users can monitor the selected temperature, actual temperature and stability status.
The intuitive interface simplifies operation and reduces the risk of incorrect settings.
Temperature values can be displayed in degrees Celsius, degrees Fahrenheit or Kelvin.
The display resolution can be selected between:
1 °C, 0.1 °C and 0.01 °C
Mains Power Variance Immunity
The AMETEK CTC-350 incorporates Mains Power Variance Immunity technology.
This system helps maintain stable temperature control despite fluctuations in the electrical power supply.
Reliable temperature control is particularly important in industrial environments where supply voltage variations may occur.
The technology helps reduce the influence of mains fluctuations on calibration performance.
Automatic Temperature Stepping
The AMETEK CTC-350 supports automatic temperature stepping.
Users can program predefined temperature points for routine calibration procedures.
The instrument supports up to 12 preset calibration points.
This reduces manual intervention and simplifies repetitive calibration tasks.
Automatic stepping is particularly useful when several temperature sensors must be checked at identical calibration points.
Temperature Switch Testing
The AMETEK CTC-350 includes temperature switch testing functionality.
Temperature switches are used to monitor and control industrial processes.
The calibrator generates controlled temperature changes while monitoring the switching contact.
This allows the switching temperature to be determined.
Depending on the selected procedure, opening and closing temperatures can be evaluated.
The difference between these temperatures represents the switching hysteresis.
Available Configurations
The AMETEK CTC-350 is available in two configurations.
AMETEK CTC-350A
The standard configuration provides controlled temperature generation using the internal temperature reference.
It is suitable for applications where an external thermometer readout is already available.
AMETEK CTC-350C
The CTC-350C includes an additional input for a compatible external reference thermometer.
This allows more accurate comparison calibration using the specified reference sensor.
The external reference input should not be confused with a universal measurement input for arbitrary devices under test.
Calibration of Pt100 and RTD Sensors
The AMETEK CTC-350 is suitable for calibrating resistance temperature detectors.
Typical applications include Pt100 and Pt1000 calibration.
The temperature sensor is inserted into a suitable calibration insert.
The dry block generates a controlled temperature.
The indicated temperature of the device under test can then be compared with the reference temperature.
For demanding applications, an external reference thermometer can be used.
Calibration of Thermocouples
The AMETEK CTC-350 can also be used for thermocouple calibration.
The instrument provides a stable temperature environment for checking thermocouple measurement systems.
The thermocouple is inserted into the calibration block and allowed to stabilize.
Its electrical output or indicated temperature is compared with the reference temperature.
For accurate thermocouple calibration, reference junction compensation and measurement uncertainty must be considered.
USB Communication and Calibration Software
The AMETEK CTC-350 features a USB 2.0 communication interface.
This allows the instrument to communicate with compatible calibration software.
The calibrator supports JofraCal software for computer-assisted calibration procedures.
Calibration software can simplify repetitive tasks and support the documentation of measurement results.
The available functions depend on the instrument configuration and software setup.
Technical Highlights
| Specification | AMETEK CTC-350 |
|---|---|
| Manufacturer | AMETEK |
| Model | CTC-350 |
| Product type | Compact Dry Block Temperature Calibrator |
| Temperature range | 28 °C to 350 °C |
| Minimum calibration temperature | Ambient temperature +5 °C |
| Internal accuracy at 200 °C | ±0.40 °C |
| Internal accuracy at 350 °C | ±0.45 °C |
| Accuracy with external reference | ±0.25 °C |
| Temperature stability | ±0.05 °C |
| Radial homogeneity at 200 °C | 0.02 °C |
| Radial homogeneity at 350 °C | 0.04 °C |
| Temperature resolution | 1 / 0.1 / 0.01 °C |
| Heating time, 23 °C to 350 °C | 6 minutes |
| Cooling time, 350 °C to 100 °C | 20 minutes |
| Cooling time, 100 °C to 50 °C | 14 minutes |
| Typical stabilization time | 10 minutes |
| Well diameter | 26 mm |
| Immersion depth | 115 mm |
| Insert dimensions | 25.7 × 120 mm |
| Calibration inserts | Interchangeable |
| Communication interface | USB 2.0 |
| External reference input | CTC-350C |
| Temperature switch testing | Yes |
| Operating temperature | 0 °C to 50 °C |
| Power supply | 115 V or 230 V AC version |
| Maximum power consumption | 1150 VA |
| Protection rating | IP10 |
| Dimensions | 248 × 148 × 305 mm |
| Weight | Approximately 5 kg |
Calibration Service by europascal
Regular calibration is essential for maintaining reliable and traceable temperature measurements.
europascal provides professional calibration services for temperature measuring instruments and calibration equipment.
When the AMETEK CTC-350 is used for temperature sensor calibration, the measurement uncertainty must be evaluated according to the complete measurement procedure.
Relevant uncertainty contributions include temperature stability, axial and radial temperature distribution, reference thermometer calibration uncertainty, sensor immersion depth, thermal contact and measurement repeatability.
The manufacturer’s temperature stability specification must not be confused with the expanded measurement uncertainty of a calibration certificate.
For professional calibration services and metrological traceability, visit the europascal Calibration Service.
Why Choose the AMETEK CTC-350?
The AMETEK CTC-350 combines fast heating, reliable temperature control and compact construction.
Its temperature range from 28 °C to 350 °C covers numerous industrial calibration applications.
The instrument reaches 350 °C in approximately six minutes, reducing waiting times during calibration.
Excellent temperature stability of ±0.05 °C provides reliable conditions for routine temperature sensor verification.
Interchangeable calibration inserts allow different sensor diameters to be accommodated.
The CTC-350C configuration provides an external reference thermometer input for improved temperature accuracy.
The lightweight 5 kg design makes the instrument particularly suitable for field calibration.
For maintenance technicians, calibration laboratories and industrial users requiring a compact and efficient temperature calibrator, the AMETEK CTC-350 provides an excellent combination of portability, accuracy and convenience.
Typical Applications for the AMETEK CTC-350
The AMETEK CTC-350 is suitable for numerous temperature calibration applications, including:
- Pt100 and Pt1000 calibration
- RTD calibration
- Thermocouple calibration
- Digital thermometer verification
- Temperature switch testing
- Industrial temperature measurement
- Process instrumentation maintenance
- Heating system verification
- Preventive maintenance
- Commissioning
- Calibration laboratories
- Industrial quality assurance
- Field calibration
The combination of fast heating, compact construction and reliable temperature control makes the AMETEK CTC-350 a practical solution for professional temperature calibration.
Find more AMETEK temperature calibration products here.
Manufacturer information for the AMETEK CTC-350 can be found on the official AMETEK website.
