Cooper Instruments & Systems Series M7 Professional Digital Force Gauge - Manual (Page 15)

Series 7 Digital Force Gauges User’s Guide
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9.5 External Trigger (ET)
This mode of operation is useful for measuring electrical contact activation force as well as
synchronization of multiple instruments for a “snapshot” view of applied forces. It is possible to capture
the reading with a normally open contact (high to low transition of the trigger signal) or a normally closed
contact (low to high transition). A Mark-10 ESM301/ESM301L test stand may be automatically stopped
when an external trigger has occurred.
Before the parameters of External Trigger Mode can be configured, it must be enabled. To do so, access
the main menu, select External Trigger, scroll to one of the four available options and press ENTER.
The options are as follows:
Select “+ More” for additional options:
Option Description
Momentary High  Low The display will freeze the captured reading until ZERO is pressed. Applies
to a high to low transition of the trigger signal.
Momentary Low  High The display will freeze the captured reading until ZERO is pressed. Applies
to a low to high transition of the trigger signal.
Maintained High The display will show the captured reading only for as long as a high signal
is maintained.
Maintained Low The display will show the captured reading only for as long as a low signal
is maintained.
Auto Settings Functions exactly as described in Section 5.4. These parameter values are
shared between Averaging and External Trigger modes.
Output Pin Automatically toggle the SP1, SP2, or SP3 pins (active low). If not required,
select “NONE”. To stop a Mark-10 ESM301 test stand when an external
trigger occurs, specify SP2 if moving in the tension (upwards) direction, or
SP1 for the compression (downwards) direction.
Note: Because the same pins are also used for set points, the stand will
stop at whichever condition occurs first.
After the parameters have been configured and the menu has been exited, press MODE until ET is
displayed. External Trigger mode is now armed. Refer to the pin diagram in the Communications and
Outputs section for connection information.
To exit External Trigger mode, press MODE and select the desired measuring mode.
EXTERNAL TRIGGER 2
+ Auto Settings
Output Pin: NONE
EXTERNAL TRIGGER
* Disabled
Momentary Hi->Lo
Momentary Lo->Hi
Maintained High
Maintained Low
+ More