Yokogawa 2-Wire Dual Channel Transmitter/Analyzer FLXA21 - Manual (Page 19)

<1. INTRODUCTION AND GENERAL DESCRIPTION>
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IM 12A01A02-01E 5th Edition : Oct. 31, 2013-00
n Trend display
12.00
8.40
5.60
2.50
12:00 12:20 12:40
9.10pH
Minimum
Maximum
Average
Current process value
Time
Tag：
Measurement value (pH)
Maximum value on this display
Minimum value on this display
FLXA21-PH pH1
A
D
B
G
E
F C
Figure 1.9 Example of trend display
Trend display
The Trend display appears when the Trend button on the Zoom display is pressed.
A: X axis; Time axis (user programmable from 15 minutes to 14 days)
B: Y axis; Measurement value axis (user programmable)
C: Tag No.
D: Current measurement value with unit
E: Trend (maximum, minimum and average values during the display update time)
F: Icon (current measurement value, and maximum and minimum values until the display
update)
G: Fault/Warning indicators (indicated in blinking only during Fault/Warning status)
n Information button
Diagnosis information on converters and sensors appears.
No malfunction detected.
Warning
When a warning icon appears, maintenance is required. Pressing this icon displays an
error message, and pressing the message displays the troubleshooting guidelines.
Fault
This icon indicates a malfunction. Pressing this icon displays an error message, and
pressing the message displays the troubleshooting guidelines.
1
PH
SC
ISC
DO
SENCOM