Mark-10 ESM303 - Percentage of Peak; Break Detection; Activation Threshold; Setting

Models ESM303 & ESM303H Test Stands User’s Guide
19
Default setting: OFF
Available settings: ON, OFF
Label
Description
+ or –
Cycles through the available settings
ENTR
Returns to the Test Function Setup menu
ESC
Exits the function without saving changes
4.8 Break detection
4.8.1 Setting
This setting directs the test stand to stop when a sample break has occurred. The test stand stops when
the force has decreased to a specified percentage of peak.
Default setting: OFF
Available settings: ON, OFF
Label
Description
+ or –
Cycles through the available settings
ENTR
Returns to the Test Function Setup menu
ESC
Exits the function without saving changes
4.8.2 Activation threshold
This setting corresponds to the force threshold after which the break detection function is active. The
threshold is provided to prevent false activation of the function during sample handling. The threshold is
defined as a percentage of full scale of the load cell or force gauge. For example, for a 50 lbF capacity
force gauge, a setting of 10% represents 5 lbF.
Default setting: 10%
Available settings: 1% - 95% (1% increments)
Label
Description
+ or –
Increases or decreases the value.
ENTR
Returns to the Test Function Setup menu
ESC
Exits the function without saving changes
4.8.3 Percentage of peak
This setting corresponds to the force trigger for break detection, defined as a percentage of peak force.
For example: A sample is tensioned, and breaks at 50 lbF. The break detection percentage setting is
60%. After the sample breaks, the force rapidly decreases to 30 lbF (60% of peak), and the stand stops.
L
O
A
D
H
O
L
D
I
N
G
:
O
N
E
S
C
−
+
E
N
T
R
B
R
E
A
K
D
E
T
E
C
T
:
O
N
E
S
C
−
+
E
N
T
R
B
R
K
T
H
R
E
S
H
:
8
0
%
E
S
C
−
+
E
N
T
R