Error And Remedy; Display Error; Checking The Lcd/Led - Fuji Electric FLR-3 Instruction Manual

6.5.1. Display error

State
Nothing is displayed.
Upper side appears black.
Irrational display
Pale display
Entire display is blackish.
LCD characters are skipped.
LED does not come on
LED is displayed in red.

6.5.1.1. Checking the LCD/LED

Follow the procedure shown below to check possible display errors.
Key operation
Press the
▼
Press the
ENT
▼
Press the
▼
Press the
ENT
▼
Every time the
▼
shown below.
LCD: OFF completely
LCD: Darkened
If dots on the LCD are missing or the LED does not come on, the
LCD/LED may have failed.
Obtain a measurement-mode display using the
ESC
keys.
INF-TN3FLR-E

6.5. ERROR AND REMEDY


Power supply is not turned on.

Low power supply voltage

Fuse is blown out.
LCD error  Refer to "6.5.7. Remedying a hardware fault".


Reverse polarity of DC power supply

Low power supply voltage

Reverse polarity of DC power supply
LCD error  Refer to "6.5.7. Remedying a hardware fault".

Hardware error  Refer to "6.5.7. Remedying a hardware fault".

Ambient temperature is low (-20  C or lower)  Increase

temperature.
LCD has reached the end of its service life.  Replace the LCD.

Ambient temperature is high (50  C or higher)  Decrease

temperature.

Refer to "6.5.1.1. Checking the LCD/LED" for LCD/LED.
The dots on the LCD are missing or the LED does not come on.

Received wave is abnormal.
 Refer to "6.5.1.2. Checking the LED lit in red".
Description
key for 4 times to display "MAINTENANCE MODE".
key once to display "RAS INFORMATION".
ENT
key for 12 times to display "LCD/LED CHECK".
key once.
ENT
key is pressed, the display is switched in the order
LED: Lit in green
LED: Lit in red
Probable cause
 Refer to "6.5.7. Remedying a hardware fault".
and the
ESC
Display
MAINTENANCE MODE
RAS INFORMATION
0000000000000000
LCD/LED CHECK
 Lit in red

 Lit in green

0.000 m/s
0.000 m3/h
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