KYOWA WGA-910A Series Instruction Manual page 80

(2) Time averaging/Hold display mode
"Detect Time", "Delay Time", and "Comparison Mode" can be set.
(A) Behavior with control input signal
When the HOLD command is turned ON
and after the lapse of delay time, the average
value is detected. However, during the delay
time and detecting block, the measured value
that is detected immediately after turning
ON the Hold command is displayed.
After the lapse of preset detecting time, the
indicated average value during the detecting
block is kept hold.
When the RESET command is turned ON,
the hold mode is canceled.
(B) Behavior with key operation
Press the key for the first time to
hold the display value at the time.
Though you cannot see, the WGA-910A is
detecting the average value after the lapse of
the delay time.
After the lapse of the detecting block
(detecting time), the average value is kept
hold.
Press the key for the second time to
cancel the holding value.
76