AVI Instrument

The AVI (Analog Voltage Input) module is an intelligent instrument which uses its own onboard processor to monitor voltages and compare them to high and low limits. This approach reduces software load on the external computer and allows voltage monitoring and failure detection to continue even if the external computer is disconnected.

• Profiles consist of high limit/low limit/gain/offset/scale/description/enable for each channel and can be created off-site by included software.
• Failures (outside limits) are detected by the AVI Board and notification is sent to the host PC. (Also logged by included TestTRAK software)
• All 32 channels are independent and each can detect limit failures as short as 500 nS (no mux scan)
• Programmable data log rates can optionally be set by the user for real time data.
• Onboard system monitor keeps track of instrument temperature and supply voltages
• Instrument includes 16 channels of digital outputs (TTL) which can be used to synchronize events with other instruments or generate clocks to use for timing (timing controlled by user programmable profiles).
• Instrument includes 2 channels of programmable voltage output (DAC) which can be used to control external power supply voltage levels.
• The user simply sets parameters for each channel using the included profile editor, assigns the profile and starts the instrument.

AVI Specifications

Number of Channels	32
Max Conversion Rate	2 M sample/sec (500 nS)
Voltage Ranges	+/- 2 Volts
Analog to Digital Converter (ADC)	12 bit (4096 steps) (Resolution: 0.976 mV)
Gain	X1, X10
External Trigger	Yes
Input Protection	Over Temperature (Max. Voltage +/- 50 VDC)
Input Impedance	100K ohms
External Enable	Yes
16 Channel Programmable Digital Outputs	TTL; 500 KHz (2 uS)
2 Channel Programmable DAC Output	200 mA; +/- 10 VDC
Ethernet Interface	Built in Web Server