YOKOGAWA VigilantPlant mR20000 Operation Manual page 39

IM 04P02B01-02E
Setting the Input Range and Alarm on Measurement Channels
Explanation
Note
If the range is changed after setting the alarm, the alarm setting becomes invaild. When you
change the range, check the alarm setting.
In step 5 of setup examples (1), (2), and (3), you can select an input type or a
computation type on the table below.
Mode Description
TC Thermocouple
RTD Resistance temperature detector
Volt DC voltage
DI ON/OFF input
1-5V 1-5VDC: 1-5V is scaled to values in the appropriate unit to be used as measured
values. Also, the low-cut function (input less than 0% is fixed to 0% value) can be
used.
Delta The value obtained by subtracting the measured value of another channel (called
the reference channel) from the input value of the channel set to delta computation
is used as the measured value of that channel.
Scale The input values are scaled to values in the appropriate unit to be used as
measured values.
SQRT The square root of the input value is calculated, the result is scaled to a value in the
appropriate unit, and used as the measured value of the channel. Also, the low-cut
function (input less than a given measured value is fixed to 0) can be used.
Skip Disables measurement, display, periodic printout, and trend recording (dot model).
• Input Type and Measurable Range
Thermocouple (Mode: TC)
Range Type Measurable Range
R 0.0 to 1760.0°C
S 0.0 to 1760.0°C
B 0.0 to 1820.0°C
−200.0 to 1370.0°C
K
−200.0 to 800.0°C
E
−200.0 to 1100.0°C
J
−200.0 to 400.0°C
T
N 0.0 to 1300.0°C
W 0.0 to 2315.0°C
−200.0 to 900.0°C
L
−200.0 to 400.0°C
U
WRe 0.0 to 2400.0°C
ON/OFF input (Mode: DI)
Range Type Measurable Range
Level 0 to 1
Cont 0 to 1
Characters That Can Be Used for Units
A unit is set using up to six characters.
The available characters are as follows:
Alphabet, numbers, symbols (%, #, °, @, +, –, *, /, (, ), µ, Ω,
RTD (Mode: RTD)
Range Type Measurable Range
−200.0 to 600.0°C
PT(Pt100)
−200.0 to 550.0°C
JPT(JPt100)
DC voltage (Mode: Volt)
Range Type Measurable Range
−20.00 to 20.00 mV
20mV
−60.00 to 60.00 mV
60mV
−200.0 to 200.0 mV
200mV
−2.000 to 2.000 V
2V
−6.000 to 6.000 V
6V
−20.00 to 20.00 V
20V
−50.00 to 50.00 V
50V
2
,
3
, .), and space
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