Measurement Computing DAQLog User Guide - Manual (Page 25)

DAQLog Software User's Guide Working with Settings Files and Folder Locations
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
Output Internal Pacer : Select this check box to make the onboard clock available at the PACER terminal (to
use the device as the clock source for another device, for example).

External Clock Edge : Set the trigger edge of the external clock to either Rising or Falling.
This option is only enabled when Units is set to External.

Include Time-Stamps : Set the default timestamp format included with logged data. Select from the following
options:
o None: No timestamp included with logged data.
o Seconds from Start (ss:ffffff): Record the number of seconds that the data was logged after data acquisition
began. Time displays as "seconds::fractions of a second (floating point)". For example, 0.0006.
o Time of Day (HH::mm::ss::fff):Record the time of day that the data was logged. Time displays as
"hours::minutes::seconds::fractions of a second (floating point)". For example, 10:08:19.035.
o Date and Time-US (MM/dd/yyyy HH:mm:ss:fff):Record the date and time that the data was logged.
Date/time displays as "month/day/year hours::minutes::seconds::fractions of a second (floating point)". For
example, 04/05/2010 10:08:19.143.
o Date and Time (yyyy-MM-dd HH:mm:ss:fff):Record the date and time that the data was logged. Date/time
displays as "month/day/year hours::minutes::seconds::fractions of a second (floating point)". For example,
2010-04-05 10:08:19.984.

Startup/ Triggering : Select the type of trigger that starts the acquisition from the Type listbox:
o Immediate Startup (no trigger) : The acquisition begins when you press the device’s START button.
If the Autostart new log upon device powerup checkbox is selected (see on page 18), logging starts
immediately if the device is powered and not connected to a computer’s USB port.
o Digital Trigger : The acquisition begins when the conditions of a digital trigger are met. You set these
conditions with these parameters.
Edge : Set the edge on which to trigger as Rising or Falling. (edge trigger) or as High or Low (level trigger)
Edge (vs Level) Sensitive : Select this checkbox to set the trigger to edge sensitive.
Clear this checkbox to set the trigger to level sensitive.
o Analog Trigger : The acquisition begins when the conditions of an analog trigger are met. You set these
conditions with these parameters:
Edge/Level : Select whether the trigger is Edge Sensitive (triggers on a rising or falling edge), or Level
Sensitive (triggers when the signal is above or below a threshold value. Set this parameter in conjunction
with the Polarity parameter.
Polarity : Select Rising/Above Threshold to trigger when the signal rises above the threshold value, or
Falling/Below Threshold to trigger when the signal drops below a threshold value.
Threshold/Hysteresis : Enter the threshold and hysteresis values. Threshold is the voltage level of the
trigger point. Hysteresis is the Range that a signal must pass through before that signal can cause a trigger.
Range : Select +/- 10 Volts when you are using a low voltage trigger signal (10 V) connected to the logger
device's analog trigger input pin.
Select +/- 30 Volts when you are using a high voltage trigger signal (30 V) connected to the device's analog
trigger input pin.
o Multi-Channel Trigger : The acquisition begins when the conditions of a multi-channel trigger are met. You
set these condition with these parameters.
Logic : Select And/All to trigger the acquisition when the conditions for all channels are true.
Select Or/Any to trigger the acquisition when one or more channel conditions are true.
Configure the trigger conditions for each channel using the parameters in the multi-channel grid.
Apply : Select this check box to configure the channel with the selected trigger options.
Type : Select the type of trigger to use on the selected channel. Only the trigger types supported by the
connected device are listed.
AboveThreshold: Triggers a logging session when the signal level rises above the threshold. The trigger
stays valid until the signal level drops below the hysteresis range.