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WATLOW Series 988 User’s Manual 6.11
Factory Menus, Chapter 6
Factory-Diagnostics
Test Displays
Runs a brief test of the controller’s displays and LEDs. To run the test,
scroll through the Diagnostics Menu until [disp] is shown in the lower
display. Use the Up-arrow key > or Down-arrow key < to select
[`YES] from the upper display and press the mode key µ.
The controller will run pattern tests, blink all the LEDs on and off, and
end with the model number in both displays.
[diSP] This prompt always appears.
Default
↓
[``no] [`yes]
[disp] [disp]
Test Outputs
This prompt tests each output. To run the test, scroll through the
Diagnostics Menu until [tout] is shown in the lower display. Use the Up-
arrow key > or Down-arrow key < to select an output [out1], [out2],
[out3], or [out4]. The LED for that output should light after a second or
two indicating that the output has been successfully energized. Do not
press the mode key µ to activate the test; it starts automatically when
anything other than [`OFF] is selected.
If any of the LEDs fail to light contact the factory.
[tout] This prompt always appears.
Default
↓
[`OFF] [out1] [out2] [out3] [out4]
[tout] [tout] [tout] [tout] [tout]
[disp]
[tout]