Oval EL4101 - Pressure Input Setup (`RESS. INPUT); To 20 Ma and 1 to 5 V Input

Fullscale
ExampleMeasurementunits(UNIT)：MPa
Baseline(BASESCALE)：2MPa
Fullscale(FULLSCALE)：4MPa
Underalarmpoint(UNDERALARMPOINT)：1.95MPa
Overalarmpoint(OVERALARMPOINT)：4.05MPa
Underfallbacklevel(UNDERFALLBACK)：2MPa
Overfallbacklevel(OVERFALLBACK)：4MPa
Base
−0.3125kgf/cm
2
0.5kgf/cm
2
9.5kgf/cm
2
−0.1kgf/cm
2
10.5kgf/cm
2
10kgf/cm
2
0kgf/cm
2
11.25kgf/cm
2
Underfallback Overfallback
Underalarmpt. Overalarmpt.
Meas.range
Alarmpoint‒fallback
settingrange
Max. full scale
Full
scale
Min. baseline
Base – full scale setting range
Meas. range
Base
line
Under
alarm pt.
Over fallback
level
Under
fallback level
Over
alarm pt.
Alarm output
Press. input
1.95MPa 2MPa 4MPa 4.05MPa
3.5mA0mA 4mA 20mA 22mA
Flowrate signal meas.Flowrate signal meas.
E-880TM-3-E

6.4.2 Pressure Input Setup (PRESS. INPUT)
As the factors associated with pressure, the measurement units, constants (with the input type set to
NONE in the SYS mode), baseline, full scale value, under alarm point, over alarm point, under fallback
level, over fallback level, and smoothing factor are established here.
（1）4 to 20mA and 1 to 5V input
When the “4 to 20mA” or “1 to 5V” is selected in the input type (SYS mode), respective parameters are
as defined as follows:
With 4 to 20mA or 1 to 5V input, the baseline-to-full-scale setting range varies with the given model
(calculation). Set the baseline and full scale setpoint within the range acceptable by the specific model
used. (Failure to set them within this range will nullify assurance for proper operation.) The base
scale and full scale are referenced when the pulse output scaling is determined. Settings should be
determined carefully taking into consideration the process of calculation and the value of standard span.
Pressure in the RUN mode are indicated relative to the input within the range where the over alarm point
and the under alarm point determine its high and low limit, respectively. If an input goes out of this range,
the output will automatically be clamped at the over fallback or under fallback value.
Alarm point and fallback setup range is determined as follows:
（ i ）Low limit Base scale－
Full scale － Baseline
×0.5
（ii ）High limit Full scale ＋
Full scale － Baseline
×2
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