User’s Guide
7
The analog and the digital filters should be disabled or set to their
minimum acceptable values for highest peak capture speed.
5
EXTERNAL TRIGGER MODE
This mode of operation is useful for measuring electrical contact activation force
as well as synchronization of multiple instruments for a "snap-shot" view of the
applied force or torque. When this mode is enabled through the configuration
menu (see Section 3), the MODE key will sequence through an additional state
which is indicated by the flashing "C" or "T" indicator or "CW" or "CCW"
indicator, depending on the type of
sensor used.
When in this mode, the instrument
stops updating the display when the
trigger signal is applied. 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).
The display will show the captured
reading until ZERO or CLEAR is pressed if the "edge" mode is set. The "level"
mode provides for the display to hold the reading only until the trigger signal
returns to its original state.Please refer to the diagram for connection details
and to Section 3 for configuration information.
6 SET
POINTS
This feature is useful for tolerance checking (GO/NO GO) or alarm indication in
process control applications. Two limits, high and low, are specified and stored
in the non-volatile memory of the instrument and all readings are compared to
these limits. The results of the comparisons are indicated through the three
open-collector outputs provided on the 9-pin connector, thus providing "under",
"in range" and "over" signaling. These outputs can be connected to indicators,
buzzers or relays as required. After the Set Point mode is enabled through the
configuration menu (see Section 3), pressing the MODE key will sequence
through an additional step indicated by
"SP" on the display. To enter or change
the values of the set points press
ENTER. The high set point is displayed.
Use the
▲
and
▼
keys to increase or
decrease the value and use MODE for
changing between tension and
compression or CW and CCW. When the
desired value is displayed, press ENTER
USER - SUPPLIED
SWITCH UNDER TEST
47K
+5V
GND
TRIG
3
5
GAUGE
USER - SUPPLIED
40 ma MAX
AS ABOVE
SAME
2N3904
GAUGE
9
8
5
GND
4
OUT
_
+
24V MAX
LOAD
