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AEC/Appllcatlon Engineering
9. Slide the control chassis back into the control housing. Set the remaining parameters with
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the keypad. Refer to Figure I 0 on Page 43.
I 0. Ready the True Temp™ TDH unit for startup with a real or simulated load. Restore
electrical power.
11. Tum
ON
control power. The
PV
LED displays four zeros (0000), then displays the current
process temperature.
12. Press[][] to page through Level 0 control parameters. The
PV
LED displays codes
indicating the currently selected mode; the
SV
LED displays the current setting of the
selected parameter. Use
I ~ I
and
I
@
I
to select a setting.
13. Set Level 0 parameters. See Figure 10 on Page 43.
14. Press
0
for at least two seconds to access Level I parameters. Set them using the
procedure in Step 12.
Note: You can proceed to Level 2, but these parameters are read-only. Controls with optional
communications have user-set variables (unit address and ID) on Level 2.
15. Tum off the power switch on the graphic display and remove all electrical power to the
TrueTemp™ TDH unit.
16. Press up the latch at the bottom of the front panel and slide out the control chassis.
17. Set selector switch
6 to OFF.
It is marked
SW201 (FUNCTION)
and is
on the right circuit board.
18. Prepare the True Temp™ unit to operate under a normal or simulated
load before re-connecting the electricity.
11>•~·
19. Tum
ON
control power. The
PV
LED displays four zeros (0000), then displays the current
process temperature.
20. Auto-tune the TrueTemp™ unit using the procedure in Section 5-9 on Page 38. If the
control still fails to work properly, call the AEC, Inc. Service Department.
Page42
TDH True Temp"' Serles Hot 011 Temperature Control Units
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