HOME DESIGN SERVICE OTHER PRODUCTS CONTACT Avanti Digital Quartz Transducer Simulator. Quartz Transducers are widely used in the oil industry for measuring downhole pressure and temperature with very high accuracy. The majority of Quartzdyne Transducers now include high resolution frequency counters and provide a two-wire serial I2C interface instead of the traditional frequency outputs. Due to their digital interface they are called digital pressure transducers. The Avanti AVA-02 Digital Quartz Transducer Simulator substitutes such a digital Quartzdyne pressure transducer and facilitates testing of data acquisition systems in the absence of a real transducer. Pressure and temperature values can be set independently by means of two rotary switches. Constant values or ramps with regular saw-tooth edges can be selected. Two jumper links are provided for setting the device address, allowing up to 4 devices on the same I2C bus. Activity on the I2C bus is indicated by an LED, which flashes up whenever the simulator is being polled successfully for pressure or temperature readings. The AVA-02 Digital Quartzdyne Simulator also features a special error mode, which simulates erratic I2C behaviour. This is useful for checking how well a data acquisition system recovers from a locked up I2C bus and whether it can detect inconsistent data values. New in 2025: We are introducing a new variant (AVA-02-B) which has all the functions of the classic AVA-02-A simulator, but in addition supports control of pressure/temperature counts through a serial UART interface. It is supplied with a matching USB converter cable for direct connection to a PC running standard terminal software. Pressure and temperature counts can be set using simple ASCII commands. The required counts for any given pressure/temperature combination (psi/°C) can be determined with an Excel spreadsheet available from HERE A 4-channel multiplexer / RS232 level shifter (AVA-02-LS) is also available and allows control of up to four AVA-02-B simulators through a single serial COM port (USB or classic RS232). Model-No: AVA-02-A (the classic switch selectable simulator) Price: £185.- + VAT. Model-No: AVA-02-B (enhanced version, c/w USB cable) Price: £235.- + VAT. Model-No: AVA-02-BX (enhanced version but without USB cable) Price: £195.- + VAT. Model-No: AVA-02-LS (4-chan Multiplexer/Levelshifter) Price: £125.- + VAT. Please contact Avanti for prices in USD or EUR. Order Example: If you want to control 3 simulators through a single USB COM port you need 1 x AVA-02-B (simulator incl USB converter cable), 2 x AVA-02-BX (simulators only) and 1 x AVA-02-LS (multiplexer/levelshifter). USER MANUAL (PDF) EXCEL ENG2RAW (ZIP) WWW.QUARTZDYNE.COM