<3.Construction and Function>
3-10
IM 11R02A01-02E
5th Edition : Dec. 28, 2016-00
3.5 Computing Station
The computing station generates WI signal by calculating calorie detector signal with each
differential pressure signal. It compensates the density with the density signal and generates the
calorific signal.
Each input signal is digitally computed after A to D conversion then D to A conversion. It
generates DC 4 to 20 mA (DC 1 to 5 V) output.
3.5.1
Display
n
Display indication
*1
The key for switching screens.
Press this key to go to ALARM
screen. Push this again to return.
X3: MIN range of gas
differential pressure(pink)
X1: MIN range of NON-
CORR. WI value(yellow)
Y2: MIN range of WI
(light blue)
Y1: MIN range of
Calorific value (green)
X1: MAX range of NON-
CORR. WI value(yellow)
X3: MAX range of gas
differential pressure(pink)
Y1: MAX range of
Calorific value (green)
Y2: MAX range of WI
(light blue)
Y1(green) : Calorific value
Y2(light blue): WI
X1(yellow) : NON-CORR. WI
X3(pink) : differential gas pressure Pa
Trend data (indicator 1 to 4)
X3: Gas differential
pressure (Pa) (pink)
X1: NON-CORR.WI% (yellow)
ALARM lamp
FAIL lamp
Unused
Y2: WI value (light blue)
Y1: Calorific value (green)
TREND 3
C
O
23.02
14.65
0.0
0.00
23.02
37.67
100.00
1000.0
35.00
18.00
500.0
90.00
X3
X1
Y2
Y1
TREND 3
SHIFT
<
<
YOKOGAWA
ALM
FAIL
PF
M
A
C
---CM6G---
F0516.ai
Figure 3.12 Measuring Display
ALARM items, such as X1 to
X4,Y1 and Y2, are displayed.
Left is ALARM screen you see when input or output is error.
Do as *1 of Fiigure 3.12 to go to ALARM.
CALC
Y1
X4
X3
X2
X1
*
*
*
*
*
*
STC
EVENT
SYSTEM
PROCESS
CLR
ALM
ON
EVT
CLR
EVT
ALARM
SHIFT
<
<
<
<
YOKOGAWA
ALM
FAIL
PF
M
A
C
---CM6G---
F0517.ai
Figure 3.13 Alarm Display
