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PT-104 Data Logger

Accuracy and resolution

Although accurate temperature sensors are widely available, it has been difficult to take advantage of them due to errors caused by the measuring device. Your PT-104 however, is inherently accurate due to its innovative design. Rather than relying on voltage references (which tend to be temperature sensitive) it uses ‘reference’ resistors which are extremely stable (low temperature coefficient and drift). The exact value of each resistor is stored in an EEPROM to provide the ultimate in accuracy (yearly recalibration is recommended). A high-performance 24-bit ADC is used to achieve the 0.001 °C resolution.


 Temperature

  The PT-104 measures temperature using platinum resistance thermometers (PRTs). Both common industry   standards (PT100 and     PT1000)   are supported. The unit is compatible with two, three and four-wire sensors   (four-wire PT100 sensors are recommended for     accurate   measurements). A wide range of PT100 sensors are   available for use with your PT-104.


 Voltage

  For voltage measurements, each input connector can be treated as a         differential input with ground, or two single-ended inputs. Both inputs must be    zero volts or above, though it does not matter which input has the higher.

Two voltage ranges are available (0 to 115 mV and 0 to 2500 mV). For the most accurate measurements use the 0 to 2500 mV range.

Resistance

When measuring resistance, the PT-104 uses a four-wire circuit to give the greatest possible accuracy. Two resistance ranges are available (0 to 375 Ω and 0 to 10,000 Ω). The unit is calibrated for 0 to 375 Ω so this range should be used for accurate measurements.

Single channel screw terminal adaptor

Interfacing 3rd party sensors not fitted with the 5-pin mini-DIN connector or measuring voltage or resistance is made possible using the PP660 screw terminal adaptor. This inexpensive adaptor has 4 breakout terminals and is suitable for a single channel of the PT-104.


 Software

 The PT-104 data logger is supplied with PicoLog 6 data logging software. This powerful yet flexible data   acquisition software allows you to   collect, manipulate, analyze, display and export data. 

 Designed from the ground up to be intuitive from the outset, PicoLog 6 allows you to set up the logger and start   recording with just a few   clicks of the mouse, whatever your level of data logging experience.

 From here, starting a capture is simple: plug in the logger, add a channel, press Record, and you’re logging! PicoLog 6 also includes a   number of additional features to cater for more advanced data logging needs. 

Also available to download, is PicoSDK, a software development kit. The SDK contains a range of software drivers and example code that you can use to write your own software or to use your PT-104 data logger with third-party software such as MATLAB, LabVIEW, C, C++, C#, Python and so on.

Features
  • Measures and records up to 4 platinum resistance thermometers
  • Works with PT100 and PT1000 sensors
  • Measures voltage and resistance
  • 24-bit ADC
  • Uses calibrated reference resistors for stability
  • USB and Ethernet interfaces
  • No power supply required
  • Run multiple units on a single PC
Type Temperature
Channels 4
Resolution 24 bits
Maximum sampling 720ms per Sample
Brand Pico Technology

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