SHIMPO CAG-2000 1 Channel - Manual (Page 16)

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 Flashing of MAS LED
The MAS LED flashes orange to indicate that the last mastering data is effective
for the currently selected program and flashes red to indicate that the last
mastering data is not effective for the currently selected program (or the mastering
data is cleared).
 Indication on alphanumeric display
“MAS REQ” is shown on the alphanumeric display.
‘ Judgment result output signal (when judgment result output option is added)
The judgment result output signal “MAS OK” is turned off.
Fig. 7-4. Master request condition.
(2) Procedure for coping with master request condition
 Calibrate the instrument with the masters.
When the MAS LED is flashing orange, the mastering operation can be omitted by
any of steps  to ’ below.
 Press one of the control keys.
‘ Input a reset command from an external signal or with an external button.
’ Input a clear master request command through the serial communication
(RS232C). (Refer to “11.1 Serial output”.)
These steps  to ’ clear the condition described in  in (1) above when the MAS
LED is flashing red, and clear the conditions described in  to ‘ in (1) above when
the MAS LED is flashing orange.
2 1 3
S ET MAS
ENT
RST
SET MAS
MAS REQ