Series TT05 Digital Torque Testers
User’s Guide
7
The tester will always power on with the unit selected in this sub-menu.
7 DIGITAL FILTERS
Digital filters are provided to help smooth out the readings in situations where there is mechanical
interference in the work area or test sample. These filters utilize the moving average technique in which
consecutive readings are pushed through a buffer and the displayed reading is the average of the buffer
contents. By varying the length of the buffer, a variable smoothing effect can be achieved. The selection
of 1 will disable the filter since the average of a single value is the value itself.
To access digital filter settings, select
Filters
from the menu. The display appears as follows:
Two filters are available:
Current Reading
– Applies to the peak capture rate of the instrument.
Displayed Reading
– Applies to the primary reading on the display.
Available settings:
1,2,4,8,16,32,64,128,256,512,1024.
It is recommended to keep the current reading
filter at its lowest value for best performance, and the displayed reading filter at its highest value for best
stability.
8 SET POINTS
8.1 General Information
Set points are useful for tolerance checking (pass/fail) and triggering an external device in process control
applications. Two limits, high and low, are programmed in the tester, and the primary reading is compared
to these limits. The results of the comparisons are indicated via on-screen indicators as well as through
the three outputs provided on the 15-pin connector, thus providing “under”, “in range”, and “over”
signaling. These outputs can be connected to indicators, buzzers, or relays as required for the
application. On-screen indicators are described in the next sub-section.
8.2 Configuration
To configure set points, select
Set Points
from the menu. The display appears as follows:
SET POINTS
Upper Disabled
* Upper Enabled
5.00
lbFin
Lower Disabled
* Lower Enabled
3.50 lbFin
DIGITAL FILTERS
(1 = Fastest)
Current Reading
8
Displayed Reading
512
