RJG Lynx Sensor Tester Operating Instructions

Lynx Sensor Tester Operating Instructions

Connect directly to each
sensor to be tested.
Push and
hold for
duration of
the test
The Lynx Sensor
Tester works with
RJG Lynx, strain
gage, and piezo force
sensors only.
If the LEDs are flashing in
sequence, the tester is thinking

Testing Strategies:

During assembly of the mold check the sensors at each step that might apply pre-loading or side
¾
loads to the sensor; e.g. just after the clamp plate is assembled.
After assembling the mold, press on each sensor or ejector pin to ensure that the force can be
¾
applied to the sensor. While the force is applied, the green or yellow LED will flash. When the
force reaches 10% (2% for piezo) the red LED will stay on. If no lights flash, the lack of
clearance is preventing movement.
Piezo sensors will start with the green LED on. If you see a change to yellow or red without
¾
pressing on the sensor then the sensor wire is damaged or the connections are dirty. If the green
light does not flash when you apply force to the piezo sensor then the sensor wire is probably
broken or disconnected.
If a sensor is "suspect" (yellow LED is On) it may have side loading which can cause it to fail in
¾
operation. If it passes when removed from the mold check the pocket for improper radius or
bending of the sensor stem. If it remains suspect when removed from the mold then it should be
returned for re-calibration.
If a sensor is "failed" (red LED is On) remove it from the mold assembly and check it again. If it
¾
passes (green) out of the mold then it is being preloaded or side loaded when installed. If it does
not pass then it is permanently damaged and must be returned for repair.
RJG, Inc. 11/20/12
Pass Suspect Fail
Pass Suspect Fail
Pass Suspect Fail
Pass Suspect Fail
Pass Suspect Fail
Pass Suspect Fail
All LEDs Flashing
Together: Sensor is not
communicating. Electronics
may be damaged
Green LED On:
Sensor is OK.
Green Flashing:
Pressure is changing
Yellow LED On:
Sensor offset is ± 5% to ±
10% (± 1% to ± 2% for piezo)
Yellow Flashing:
Pressure is changing
Red LED On:
Sensor offset is over ± 10%
(± 2% piezo).
Red LED is Flashing:
Sensor is reporting an
"invalid" condition. Sensor
wire damaged (pinched
or cut) or sensor head
damaged.
Lynx Sensor Tester