Self contained acquisition system and power supply for Electronic Pressure, Voltage, Current and Temperature Scanners

CANdaq

• Acquisition system with CAN, Ethernet and RS232 output in engineering units.

• Now available with hardware trigger (deterministic to +/-27us) and valve drive output.

• Compatible with Digital Thermal Compensation (DTC) scanners.

• 0.06% FS accuracy with DTC scanners,
0.25% with standard scanners.

• Compact size.

• Supplied fully calibrated.

• Rugged enclosure for on-car applications.

• Re-zero through host control or plug in switch.

• Supplied with full software for configuration, calibration and data logging.

The CANdaq is a self contained single scanner acquisition system. It can acquire data from a PSI pressure scanner, The Chel l I-Daq a nalogue scanner and the Chel l T-Daq temperature scanner.

Pressure Scanners

The CANdaq takes full advantage of the DTC
pressure scanner technology and makes interfacing with them straightforward.

The DTC pressure scanners contain all their coefficients in an EEPROM inside the scanner. They also compensate for temperature by measuring the temperature of every transducer. The DTC scanners also contain a 3X deranging option and shuttle valve position sense and all these functions can be accessed by the supplied software.

With standard scanners, temperature compensation is also available through the single temperature output offered by the scanners.

The CANdaq can also be used with th e QD-VP valve driver which gives software contr ol over the pressure scanner shuttle valve.

Voltage, Current and Temperature Scanners

The CANdaq will acquire voltages and currents from th e Chell I-Daq and temperatures from the Chell T-Daq.

The CANdaq senses what scanner type is
connected to, either a DTC scanner, a conventional scanner, an I-Daq or a T-Daq. The appropriate calibration coefficient and algorithms are then employed. This enables DTC scanners, I-Daqs and T-Daqs to become ‘ plug and play'.

Hardware Trigger

The CANdaq also has the option of a hardware trigger. This can be used to provide time deterministic data.

The CANdaq will operate at high accuracy and unparalleled high speed making it suitable for a variety of applications. These range from wind tunnels, to education and on-car race applications.

Software

The software supplied with the CANdaq allows the user to configure the acquisition in terms of speed, averaging and thermal compensation method used. It also provides a calibration interface, real time data window and data logging facilities. The CANdaq is supplied with a DDE interface so data can be directly acquired into third party software such as Excel.

Easy to use wizards are also available to help
configure the CANdaq to the application.