Hioki LR8431, Instruction Manual

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Chapter 10 Specifications
144
Trigger output Open-collector output (with 5 V output, Active Low)
Pulse Width: at least 10 ms
You can choose to enable output at trigger activation only or at both
trigger activation and measurement start.
Trigger input and

output terminals
Push-button terminals
Trigger Section
Alarm Output
Output settings OR, AND
Output occurs when the logical sum (OR) or product (AND) of
alarm trigger sources is true.
Alarm Types The following criteria can be specified for each channel.
• Level
: An alarm is output by input rising above or falling below
a preset level
• Window : An alarm is output by input crossing into or out of a win-
dow defined by preset upper and lower trigger levels
Latch setting Alarm output can be set to be held (latched), or not.
Beeper On/Off
Alarm output

characteristic
Open-drain output (with 5 V pull-up, active low)
Output refresh At every recording interval
Miscellaneous
Numerical

calculations
Four calculations are available at the same time
Calculations Average value, peak value, maximum value, Time to maximum

value, minimum value, Time to minimum value
Calculation time
span Can be specified by A/B cursors, or whole waveform
Cursor measurement

functions
Time difference between A/B cursors, potential difference,

potential at each cursor, time
Scaling functions Available for each channel independently
Comment entry Provided
Event mark insertion Event markers can be inserted by screen button or by signal input
at the trigger input terminal (exclusive function)
Screen image capture
function Provided (compressed bitmap format)
Retain start condition
function Provided