4WHB10K 10 kohm, 4-Wire Half-Bridge Terminal Input Module

Überblick

The 4WHB10K provides the completion resistor required for 4-wire half-bridge measurements. This module should be used with sensors that have a 10 kΩ resistance.

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Funktionen und Vorteile

  • Macht akkurates Messen von 10-kOhm 4-Drahthalbbrücken einfach
  • Leicht zu installieren oder zu entfernen
  • Wird direkt an der Datenlogger-Anschlussleiste angeschlossen
  • Kompatibel mit fast allen Datenloggern von Campbell Scientific

Bilder


3D/CAD-Dateien:

Technische Beschreibung

4WHB10K Schematic 

4WHB10K-to-Sensor Hookup

Spezifikationen

Completion Resistor 10 kΩ (bulk metal foil)
Tolerance ±0.01% (@ 25°C)
Maximum Temperature Coefficient ±0.8 ppm/°C
Power Rating 0.25 W (@ 70°C)
Dimensions 1.5 x 1.5 x 2.7 cm (0.6 x 0.6 x 1.0 in.) for body with prongs
Weight 6 g (0.2 oz)

Kompatibel mit

Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.

Datenlogger

Product Compatible Note
CR1000
CR200X (retired)
CR216X (retired)
CR300
CR3000
CR5000 (retired)
CR6
CR800
CR850

Miscellaneous

Product Compatible Note
CR310
CR9050 (retired)

Additional Compatibility Information

Datalogger Considerations

The 4WHB10K uses two sequential differential analog inputs; the first differential channel must have an adjacent analog ground channel to accept the "ground prong" of the 4WHB10K. Not all datalogger terminal strips have this sequence on all channels, so please check your datalogger's wiring panel to confirm channel assignments, especially if you plan to use multiple Terminal Input Modules.

Newer CR10X Wiring Panels and the CR10XTCR Thermocouple Cover are deep enough to cover the datalogger input channels with a Terminal Input Module attached; older CR10TCRs are not deep enough.

Programming

The 4WHB10K is measured either with CRBasic's BrHalf4W Instruction or Edlog's Instruction 9 (Full-Bridge with Excitation Compensation).

Dokumente

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FAQs für

Number of FAQs related to 4WHB10K: 2

  1. For more information, refer to the “PRT in 4 Wire Half Bridge” section in the 4WPB100, 4WPB1K PRT Bridge Terminal Input Modules Instruction Manual. Figure 2-1 in the manual provides a circuit schematic.

  2. The 4WPB100, 4WPB1K, and 4WHB10K terminal input modules can be used instead of the 3WHB10K module. However, to maintain the enhanced accuracy of the four-wire half-bridge instruction, it is pertinent when adding the fourth wire to maintain the same resistance as the other three wires (same wire size and manufacturer). Note that simply adding a short jumper wire on the 4WPB100, 4WPB1K, or 4WHB10K modules to complete the fourth wire will not maintain the accuracy.