The deviation displayed is calculated by the equation:
Deviation = Detected Value – Reference Value
Ex) Detected value: 1,823mm Reference value: 1,798mm
1,823 – 1,798 = 0.025 Display value: 25
The monitoring range depends on the set point. When the set point is 100, the monitoring
range is
±
100 (m relative to the reference value. Absolute value detection is characterized in that
the value right after start is taken as reference for comparison with detected values, so slow
changes such as overload by temperature can be detected. To recommence sampling of
reference data for absolute value detection during operation, push the sampling button. Then
sampling is recommended with the appearance of “Sampling” on the left side of the screen.
Mean value detection is performed during sampling.
•
Mean Value Detection
When the machine is operated in the continuous mode, detection is dept turned off for a while
during the initial 10 strokes (the initial number of bypasses the number of times that detection
is turned off can be changed by system setting) and begins with the 11
th
stroke. Mean value
detection is a detection mode which makes comparison with the mean value of 10 previous
data (the number of averages taken can be changed by system setting) when the device gets
into the detection condition after the end of the bypass state. However, right after the start of
detection, 10 previous data are not available. Therefore, after the end of the bypass state,
the 1
st
data is compared with the last detected value at the end of bypass, the 2
nd
data with
the 1
st
detected value, the 3
rd
data with the mean value of the 1
st
and 2
nd
data, and the 4
th
data with the mean value of the 1
st
, 2
nd
and 3
rd
data. Thus the data up to the 10
th
are
compared each with the mean value of previous data and the 11
th
and subsequent data are
compared each with the mean value of 10 previous data at all times.
Adaptive Mode
(Stroke-to-Stroke "Rolling Average")
Adaptive Mode
(Stroke-to-Stroke "Rolling Average")
Page 11
TMG-1200 Instruction Manual
