Gentec-EO MACH 6 - Manual (Page 9)

Mach 6 User’s Manual Revision 2.1 9
The Armed LED illuminated when the unit has been armed for data collection. Note that
the unit can be armed even if no triggers are present.
The Out of Range LED illuminates when the internal ADC detects a voltage outside of its
measurement range. This LED is only updated when the unit is armed and triggered.
The Buffer Full LED illuminates when the internal pulse memory is full.
USB
The Mach 6 communicates with the host PC via a USB port. The device supports full
speed USB 2.0. The host P.C must have the Mach 6 USB drivers installed. These drivers
are on the disc supplied with the Mach instrument. The Application Software is written in
LabView and uses the NI-VISA software from National Instruments to affect a
communication link with the Mach 6. The USB cable can be unplugged form the Mach 6
during operation at any time, but the applications software will not function in this state
other than to wait for a Mach 6 to be connected to the USB.
Detector Output
The Detector Output provides an amplified, buffered signal from the probe. The full scale
signal is 3.00V in a given range and is offset by -1.25V nominal.
External Trigger
Mach 6 supports internal and external triggering. Connect a TTL trigger signal to this
input to use external triggering.
Turning the Unit On
Before turning the Mach 6 on, be sure that the probe in use is plugged in. When the Mach
6 powers up, it reads the probe memory to obtain required information for correct
operation. Mach 6 cannot detect a probe removal, so hot swapping the probe is not
permitted. Doing so will not cause damage, but the probe information will not be
updated. Once the probe and power supply are connected, turn the unit on by setting the
Power Switch to ON. The Power LED will illuminate. The remaining LEDS will turn on
briefly as the Mach 6 performs internal self-tests, then they will turn off. The Mach 6 is
now ready to use.
Power on Tests
When powered on, the Mach 6 tests its internal memory and its control circuitry to ensure
it can accurately measure data. If the internal memory fails its test, the Mach 6 will flash
the Over Temp LED. If the control circuitry fails its test, the Mach 6 will flash the Out of