Omega RD-MV100 Series, User Manual

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11-3
Computation/Report Function (Option)
11
Set the base position of the bar graph : See section 7.10.
Specify the scale display position : See section 7.10.
Use partial expansion display : See sections 7.11 and 7.12.
Numerical display
The range of displayed values of computed data is from –9999999 to 99999999
excluding the decimal point. The decimal point position corresponds to the position of
the decimal point of the upper and lower limit span of the computation channel.
However, special displays are used for cases given in the table below.
Data Condition Computation Display
The computed result exceeds 99999999. plus over +
The computed result is below –9999999. minus over –
The value exceeds 3.4E + 38, or is below overflow + or –
–3.4E + 38 in the middle of computation.
An error is detected. error +
When the following computation is specified,
a computation error occurs.
• X/0
• SQR (–X)
• LOG (–X)
• When a skipped channel No. is entered in the equation.
The number of stacks (see section 11.2) stack over +
in the equation exceeds 17.
Rolling Average
The moving average of the computed result of the equation specified for the computation
channel is determined, and the result is displayed as computed data for that channel.
The sampling interval and the number of samples can be specified for each channel.
The maximum sampling interval is 1 hour; the maximum number of samples is 64. The
initial setting is [OFF] (do not perform moving average). For the setting procedure, see
section 11.10.
Alarm
You can set up to 4 alarms on each computation channel. The alarm types are upper
limit alarm (H), lower limit alarm (L), delay upper limit alarm (T), and delay lower limit
alarm (t). The hysteresis is fixed to 0. For the procedures to set the alarms, see section
11.5. For the alarm indication, see section 4.2 and 6.1.
Acquiring the Computed Data
Display data and event data
The computed data from the computation channels can be acquired as the display data
and event data in the same manner as for the measurement channels. See chapter 8.
Manual sampled data
The instantaneous values of all computation channels (excluding the computation
channels that are turned Off) can be stored to the internal memory with the manual
sampling operation. For the operating procedure, see sections 8.12.
TLOG data
The TLOG computation data are acquired every interval. For the setting procedure, see
sections 11.8 and 11.9.
Setting Computation Channels
The computation channel specifications are set in the setting mode. For detail, see
sections 11.4 through 11.6.
The timer used in the TLOG computation is set in the basic setting mode. For detail, see
section 11.9.
11.1 Overview of the Computation Function