Troubleshooting - FlowLine MicroPoint LI42 Series Owner's Manual

Spec Tech Industrial Electric
WIRING
Step Seven
C. Wiring the LI42-1001 to (1) Level Transmitter, (1) Level
Switch (2) Alarms and (1) PLC (Note: Switch and Alarm
Functions Require MicroCal Calibration)
+
Power
Supply
12-24
VDC
-
Transmitter
Channel 1
PLC
Red
(Positive)
Switch
High Alarm
Black
(Negative)
Channel 2
Red
(Positive)
Black
(Negative)
Low Alarm
Alarm
Ch.1
Alarm
Ch.2
Always read the associated transmitter and/or switch
instruction manual(s) and check the power supply min-max
rating(s) prior to wiring.
D. Wiring the LI42-1001 to (2) Level Transmitters, (1) PLC
and (2) Alarms (Note: Alarm Functions Require MicroCal
Calibration)
+
Power
Supply
12-24
VDC
-
Transmitter
Channel 1
PLC
Red
(Positive)
Black
(Negative)
Low Alarm
Red
(Positive)
Black
Transmitter
(Negative)
Channel 2
Alarm
High Alarm
Ch.1
Alarm
Ch.2
Warning
Always read the associated transmitter and/or switch
instruction manual(s) and check the power supply min-max
rating(s) prior to wiring.
Spec Tech Industrial Electric
Red
Black
White
Gray
Orange
Brown
Blue
Green
Yellow
Purple
Warning
Red
Black
White
Gray
Orange
Brown
Blue
Green
Yellow
Purple
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TROUBLESHOOTING

Step Eight
A. Display Descriptors: The following are the display's opera-
tional descriptors, meaning and corrective action:
CH=_ Momentarily indicates the displayed channel number
(CH=1) after the push button is pressed and before
the measured value is displayed (Factory and
MicroCal functions).
CH_=L When the transmitter measured value falls below the
programmed LOW level set point, the display auto-
matically redirects to that ALARM state channel
(CH1=L). The display then alternates between the
channel descriptors (CH1=L) and the measured value
as programmed via MicroCal. The ALARM will auto-
matically clear when the measured value rises 10%
above the set point (MicroCal function only).
CH_=H When the transmitter measured value goes above the
programmed HIGH level set point, the display auto-
matically redirects to that ALARM state channel
(CH2=H). The display then alternates between the
channel descriptors (CH2=H) and the measured value
as programmed via MicroCal. The ALARM will auto-
matically clear when the measured value falls 10%
below the set point (MicroCal function only).
Good The level or leak detection switch is in a NORMAL
state (wet or dry) as programmed via MicroCal. The
ALARM will automatically clear when the switch input
changes state (MicroCal function only).
CH_HI The HIGH level switch (CH1HI) is in an ALARM state
(wet) as programmed via MicroCal. The ALARM will
automatically clear when the switch input changes
state (MicroCal function only).
CH_LO The LOW level switch (CH2LO) is in an ALARM state
(dry) as programmed via MicroCal. The ALARM will
automatically clear when the switch input changes
state (MicroCal function only).
CH_LE The LEAK detection switch (CH1LE) is in an ALARM
state (wet) as programmed via MicroCal. The ALARM
will automatically clear when the switch input changes
state (MicroCal function only).
ALLUC If the current consumption on BOTH 4-20 mA sensor
input channels falls below 1 mA, then the display will
read ALLUC. This indicates that there are either NO
sensors attached and/or loop power to the sensors.
CH_OL If the current consumption of a 4-20 mA sensor input
rises above 25 mA, then that channel (CH2OL) will be
automatically disabled. Correct the overload condition
and cycle power to the indicator. Severe or repeated
overloading may cause permanent damage.
B. Additional Information: Go to www.digitalinfinity.com and
click on the nav-bar "Application Info" button for FAQ's, tech-
tips, case studies, white papers, glossary and success stories.
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888-773-2832
888-773-2832