RJG Lynx Sensor Tester User manual

Testing Strategies:
¾During assembly of the mold check the sensors at each step that might apply pre-loading or side
loads to the sensor; e.g. just after the clamp plate is assembled.
¾After assembling the mold, press on each sensor or ejector pin to ensure that the force can be
 appliedtothesensor.Whiletheforceisapplied,thegreenoryellowLEDwillash.Whenthe 
 forcereaches10%(2%forpiezo)theredLEDwillstayon.Ifnolightsash,thelackof  
clearance is preventing movement.
¾Piezo sensors will start with the green LED on. If you see a change to yellow or red without
pressing on the sensor then the sensor wire is damaged or the connections are dirty. If the green
 lightdoesnotashwhenyouapplyforcetothepiezosensorthenthesensorwireisprobably 
broken or disconnected.
¾If a sensor is “suspect” (yellow LED is On) it may have side loading which can cause it to fail in
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.
¾If a sensor is “failed” (red LED is On) remove it from the mold assembly and check it again. If it
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 Lynx Sensor Tester
The Lynx Sensor
Tester works with
RJG Lynx, strain
gage, and piezo force
sensors only.
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 Operating Instructions
Pass Suspect Fail
Pass Suspect Fail
Pass Suspect Fail
Pass Suspect Fail
Pass Suspect Fail
Pass Suspect Fail
If the LEDs are ashing in
sequence, the tester is thinking
Push and
hold for
duration of
the test
Connect directly to each
sensor to be tested.

Backside of
LS-TESTER
Enclosure
Loosen all [4] M4 Screws
& Remove the Back Cover
Inside of
LS-TESTER
Enclosure
+
-
PULL
9 V Battery
Install New
9V Battery Here
Inside of
LS-TESTER
Enclosure
¾Removing the four M4 screws from the back of the LS-TESTER enclosure opens the enclosure.
Reference Figure 1.
¾If replacing an existing battery, remove the battery by lifting it out of the enclosure and
disconnecting it from the 9V battery snap connector. Reference Figure 2.
¾Install a new 9V battery by connecting it to the 9V battery snap connector & reinserting it into the
LSTESTER. Replace the back cover & tighten down the M4 screws. Reference Figure 3.
Dispose of the used battery by recycling.
Installing or Replacing a New 9V Battery
Figure 1: Back of Sensor Tester Figure 2: Remove Battery Figure 3: Replace Battery
Helping Molders Succeed
RJG, Inc. 11/20/12 Lynx Sensor Tester