The Chell microDAQ3-32-HP builds in the successful microDAQ3 range of pressure scanners. This scanner uses high pressure and high accuracy digital transducers to provide unparalleled accuracy in pressure scanning technology. The sensors used in the microDAQ3-32-HP are all absolute. This gives the user the option of outputting absolute data or differential data. For differential data, the absolute references are subtracted from the channel data. The user can decide whether to use either reference or an average of the two.

The microDAQ3-32-HP is capable of measuring differential pressures at line pressures given the large measurement range of the scanner (0 to 1140 kPa absolute). 

The microDAQ3-32-HP will output differential or absolute compensated engineering unit pressure data over Ethernet, CAN (classic 2.0B and CAN-FD), IENA, and EtherCAT (see microCAT3) at speeds up to 400Hz per channel. 

The microDAQ3-32-HP offers the option of an electrically driven valve that gives the scanner a purge and re-zero facility. The valve has been years in development and features precise positional measurement and current monitoring to ensure reliability.

For applications where the valve isn’t required, both the cost and size of the scanner are reduced.

The microDAQ3-32-HP makes use of high accuracy transducers which are combined with two 24-bit ADC’s per port – one for pressure and one for temperature. This precise temperature measurement allows the MicroDAQ3-32-HP to almost entirely compensate for thermal effects over its wide operating range.