SymCom warrants its microcontroller based products against defects in material or workmanship
for a period of five (5) years* from the date of manufacture. All other products manufactured by
SymCom shall be warranted against defects in material and workmanship for a period of two (2)
years from the date of manufacture. For complete information on warranty, liability, terms, and
conditions, please refer to the SymCom Terms and Conditions of Sale document.
* The 520 Series has a one (1) year warranty and the LSRU series has a two (2) year warranty.
CLEARING LAST FAULT
The last fault stored can be cleared on the unit. This procedure is outline
d
as
follows:
1. Rotate the Mode Select Switch to GF .
2. Press and hold the Reset/Program Button. Adjust the Display/Program
adjustment until cLr appears on the display. Release the Reset/
Program Button.
To verify the last fault was cleared, place the Mode Select switch in the Run
position. Then press and hold the Reset/Program Button, cLr should be on the
display.
TAMPER GUARD
The unit can be protected from unauthorized program changes by locking in the
setpoints.
This procedure is outline
d
as follows:
1. Rotate the Mode Select switch to GF .
2. Rotate Display/Program adjustment fully clockwise.
3. Press and hold the Reset Button. Adjust the Display/Program
adjustment until Loc appears in the display.
4. Release the Reset Button.
5. Turn Mode Select switch to run .
The program is now locked, but all settings can be viewed. The unit can be
unlocked by following the procedure above except step three. This step should
say: Press and hold the Reset Button. Adjust the Display/Program adjustment
until unL appears in the display.
07/25/03
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