ATI Technologies SmartTachSmartTach, User Manual

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PARAMETERS
Page 4-42 SmartTach Operating Manual
A0 - Trigger Input High Peak Voltage
Parameter Group:
InpMon
Purpose: This diagnostic parameter is used to display the current Trigger input
high peak (maximum positive) voltage level. This effectively allows
measurement of the signal's peak voltage without using external
instrumentation.
How to use: The high peak voltage level can be observed in either real-time or
peak-hold mode. The real-time mode is default, this mode will
continuously display the real-time high peak (maximum positive)
voltage level of the Trigger Input. Unlike the peak-hold mode, the
real-time mode will track the high peak level of the input signal both
up and down.
The peak-hold mode can be selected by pressing the ENTER
Pushbutton (The arrow symbol will flash). This mode will display and
hold the highest attained (maximum positive) voltage level of the
Trigger Input. Over time, this value will begin to fade unless
refreshed by more reference pulses of equal or greater magnitude.
The voltage measurement range is dependent on the setting of the
Trigger Input Attenuator parameter. If the Attenuator is disabled
(default), the voltage measurement range is -5.12 to +5.08 volts in
0.04 volt increments. If the Attenuator is enabled, this range
increases to -25.6 to +25.4 volts in 0.2 volt increments.
NOTE: The Input Signal Conditioning Select parameter(06) must be
set to TRG for this function to work properly.