The dual-input Pt100/Pt1000 thermometer is a portable instrument designed for temperature measurements with Pt100 and Pt1000 probes, intended for applications where comparing two measurement points during the same test is important. It is suitable for laboratory inspections, testing, maintenance, plant checks, comparative measurements and applications where the temperature difference between two points is a key parameter.
The instrument operates with 3-wire or 4-wire Pt100 probes and 2-wire Pt1000 probes, with a measuring range from -200 to +650 °C. Selectable measurement units are °C, °F and K.
The main feature compared to single-input models is the presence of two independent measurement channels, allowing simultaneous reading of two temperatures and display of the A-B differential value. This function is particularly useful when comparing inlet and outlet temperatures of a system, two points within the same process, ambient and surface temperatures or different operating conditions during testing.
Probes equipped with SICRAM module technology are automatically recognized by the instrument and internally store calibration data. This allows interchangeable probe operation while maintaining correct association between instrument, probe and metrological characteristics.
The RS232C serial output enables real-time transfer of measurements to a PC or portable printer. Baud rate can be configured from 1200 to 38400 baud, while print intervals can be immediate or selectable from seconds, minutes or one hour. For connection to a PC USB port, a dedicated USB/serial converter is required.
The instrument includes Max, Min and Avg functions, relative measurement REL, HOLD function and selectable auto power-off. Its IP66 protection rating makes it suitable both for laboratory use and field operation.
Pt100 and Pt1000 probes comply with IEC 60751, the standard defining RTD tolerance classes. The range also includes immersion, penetration, surface, air and application-specific probes. For microclimate-related measurements, globe thermometer probes are available with accuracy according to ISO 7243 and ISO 7726.
Applications
- Temperature measurements on two points using Pt100 or Pt1000 probes
- Comparison between two temperatures with A-B differential display
- Plant inspections, thermal processes, laboratories and production departments
- Immersion, penetration, surface and air measurements according to the selected probe
- Real-time transfer of measurements to PC or portable printer via RS232C
- Comparative checks between inlet and outlet temperatures of a system
- Technical inspections where internal datalogger recording is not required
- Use with Pt100/Pt1000 RTD probes according to IEC 60751
FAQ – Dual-Input Pt100/Pt1000 thermometer
When should a dual-input Pt100 thermometer be selected?
It is suitable when two temperatures must be measured simultaneously and directly compared, for example to verify the difference between two points of a system or process.
What is the difference compared to a single-input thermometer?
A single-input model measures one temperature at a time. The dual-input version allows connection of two probes and also displays the A-B differential value between the two channels.
Is the instrument a datalogger?
No, this version is not a datalogger. It is intended for direct measurements and real-time transfer via RS232C. For internal data recording, the dual-input datalogger version is more suitable.
What measuring range does it cover?
The measuring range is -200…+650 °C, depending on the connected Pt100 or Pt1000 probe.
What is the measurement resolution?
Resolution is 0.01 °C within the ±199.99 °C range and 0.1 °C over the remaining range.
What is the purpose of the A-B function?
The A-B function displays the difference between the two measured temperatures. It is useful in applications where thermal differential is more important than the individual absolute value.
Can it be connected to a PC?
Yes. Through the RS232C output it is possible to transfer measurements in real time to a PC or portable printer. A dedicated USB/serial converter is required for connection to a PC USB port.
Are probes included with the instrument?
No, probes and data transfer cables must be selected and ordered separately according to the required application.
What is the purpose of the SICRAM module?
The SICRAM module enables automatic probe recognition and stores sensor calibration data, simplifying correct instrument operation.
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