NetDAS

NetDAS is the manufacturer for DAQ24USB* dataloggers; they have been relocated from DAQ Systems because they were a vendor rather than the manufacturer.

Below is some model-specific information to help you locate your instrument response. NetDAS has four DAQ24USB models. The 4, 4CH and 5V versions use the CS5532 ADC chip, and the XR uses the ADS1255 chip. FIR filters are the same for dataloggers using the CS5532 chip, but sensitivities vary. The 4CH and 5V dataloggers have a Low and High sensitivity mode. Sensitivities are as follows: - 4.194310^5 Counts/V for the DAQ24USB-4, and the DAQ24USB4CH and DAQ24USB5V at Low sensitivity - 2.79620310^6 Counts/V for the DAQ24USB4CH at High sensitivity - 2.843596*10^6 Counts/V for the DAQ24USB5V at High sensitivity

The XR has different sample rates and uses different FIR filters that dataloggers using the CS5532 chip.

DAQ24USB4

This model uses the CS5532 ADC chip and has the same FIR filter response as the DAQ24USB4CH and DAQ24USB-5V dataloggers. Its ADC scale factor is 4.1943e+5 counts/V.

DAQ24USB4CH

This model uses the CS5532 ADC chip and has the same FIR filter response as the DAQ24USB4 and DAQ24USB-5V dataloggers. Its ADC scale factor is 4.1943e+5 counts/V when recording at Low sensitivity and 2.796203e+6 counts/V at High sensitivity.

DAQ24USB5V

This model uses the CS5532 ADC chip and has the same FIR filter response as the DAQ24USB-4 and DAQ24USB-4CH dataloggers. Its ADC scale factor is 4.1943e+5 counts/V when recording at Low sensitivity and 2.843596e+6 counts/V at High sensitivity.

DAQ24USBXR

This model uses the ADS1255 ADC chip, giving it a different response from models using the CS5532 chip. It also had different sample rates available.