QD1 Incremental Shaft Encoder Interface

Overview

The QD1, a general-purpose quadrature decoder, is required for some shaft encoders you may use in water-level or slope-stability applications. Please note that our CS410 Shaft Encoder does not require the QD1.

Note: A new quadrature instruction is available in the CR1000, CR800, CR850, and CR1000X dataloggers. For questions, contact Campbell Scientific. 

Images

Compatibility

Note: The following shows notable compatibility information. It is not a comprehensive list of all compatible or incompatible products.

Dataloggers

Product Compatible Note
21X (retired)
CR10 (retired)
CR1000
CR10X (retired)
CR200X (retired)
CR206X (retired)
CR211X (retired)
CR216X (retired)
CR23X (retired)
CR295X (retired)
CR3000
CR500 (retired)
CR5000 (retired)
CR510 (retired)
CR6
CR800
CR850
CR9000 (retired)
CR9000X

Additional Compatibility Information

Datalogger Considerations

Two datalogger pulse count channels are required. A connection to a 5 V output and ground is also required.

Programming

Connected sensors are measured by the PulseCount Instruction in CRBasic and by Instruction 3 (Pulse Count) in Edlog. The "up" versus "down" pulses are tallied in the datalogger.

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