P
AGE
41
Model Number Displayed
1. Turn off the instrument power, wait 5 seconds then
during power up is
re-apply the power. Verify that the number displayed
incorrect
during the power up sequence is the same as
indicated on the label affixed to the platen. If the
number displayed is incorrect, perform the following
steps:
a. Turn off the power to the instrument. Press
and hold the UP and DOWN keys. Turn on
the power and keep the keys pressed until
the model number displayed resets to
78X0
-
0000
-
0021
. Release the keys and turn off
the power.
b. To enter the correct model number, press
and hold the SCROLL and DOWN keys and
turn on the instrument power.
78X0
should
be displayed. Wait about 5 seconds and
release the keys. The display should stay
78X0
. Use the UP/DOWN keys as neces
sary to change the displayed number to
match the first 4 digits of the model number
as indicated on the label on the platen. After
adjusting the first 4 digits to the proper
values, press the SCROLL key and the
display will change to
0000
. Use the UP/
DOWN keys to set the next 4 digits of the
model number to the correct values. Press
the SCROLL key and the display will be
0000. Use the UP/DOWN keys to set the last
4 digits of the model number. Press the
SCROLL key and the power sequence will
complete. The Program, Alarm Set, Preset
and Datalog mode parameters will need to be
re-entered (pages 26 & 30 or Software Ref.
Sheet, page 55, if already filled out).
Relay/SSR Driver
1. Verify that the Program, Alarm Set and Preset mode
Malfunction
parameters are correctly set (pages 26 & 30 or
Software Ref. Sheet, page 55, if already filled out).
2. Turn off the power to the instrument. Wait about 5
seconds and turn the power on again. Confirm that
the model number displayed during the power up
sequence indicates that the output(s) is/are present in
the instrument. See Appendix C (page 52) for the
model number explaination/decoding. This number
should match the number on the label affixed to the
platen.
3. Turn off the power to the instrument. Open the cover.
Loosen the platen hold down screw and swing the
platen open. Inspect the instrument Relay/SSR Driver
board (See Figure 2-2, page 9) for the presence of
the output device(s). A relay output will appear to be a
cube. The SSR Driver will appear as a resistor and a
jumper wire. The output will not work if the hardware
is not present. Inspect that the output terminal
connections are present and firmly attached.
(Continued on next page)
Содержание MRC 7800
Страница 56: ...PAGE 56...