<Hysteresis fixed value selection>
<Setting of flow rate unit.>
<Setting of Eco mode>
<Reset to the initial setting>
<Model number display>
[6]Troubleshooting
●
Error displays and corrective action
●
Troubleshooting (Other than error displays)
Error indication
Cause
Corrective action
The supplied power voltage
is not within the rating.
Check controller power
specifications, set power voltage
within the rating range, and turn
power ON again.
If fluid flows during zero
adjustment setting, “E 02” is
indicated.
Please check that fluid doesn’t
flow at the time of zero adjustment
setting.
An error occurred during
EEPROM reading or writing.
Contact your nearest CKD Sales
Office or dealer.
An error occurred during
memory reading or writing.
Contact your nearest CKD Sales
Office or dealer.
Reading exceeds the upper
limit of detection range.
Reduce the flow.
Sensor chip is broken.
Replace FSM2.
Reading exceeds the lower
limit of detection range.
Reduce the flow.
Sensor chip is broken.
Replace FSM2.
Switch output indicator
is blinking
Switch output over current
protection circuit is activated.
Check whether load current
exceeds the rating, correctly
connect the controller, and turn
power ON again.
Model number display
To instantaneous flow rate display
Press once.
ｍＬ
/
ｍｉｎ
<Flow rate unit & flow direction>
<0 point adjustment value>
<Model number>
Full scale flow rate
<Working fluid>
Ai : Air,N2
Ar : Argon
C2 : CO2
<Switch output>
N : NPN output
P : PNP output
Model number display
Trouble Cause Corrective
action
Breakage of wire.
Replace FSM2.
Recheck/repair external wiring.
Wrong connection of power
source.
Connect the rated power source
correctly.
Malfunction caused by noise.
Keep FSM2 main body and cable
away from noise source.
Output circuit is broken.
Replace FSM2.
No flow display
(No analog output)
FSM2 is broken.
Replace FSM2.
Flow display remains
0. (Analog output
remains 1V or 3V)
Flow path clogged by foreign
matter.
Remove foreign matter and install
filter at primary side of FSM2.
Leakage
Check and correct piping.
Foreign matter sticking to
sensor chip.
Replace FSM2.
Flow display does not
reach 0. (Analog
output does not make
1V or 3V)
Malfunction caused by noise.
Keep FSM2 main body and cable
away from the noise source.
Sensor chip is broken.
Replace FSM2.
Foreign matter sticking to
sensor chip.
Replace FSM2.
Poor precision
Malfunction caused by noise.
Keep FSM2 main body and cable
away from the noise source.
Reduce pulsation by installing
tank, etc.
Change the response time.
Change the display speed.
Pulsation of air.
Fault in power source (not
enough voltage/capacity)
Pulsation of air.
Change the hysteresis.
Fault in power source (not
enough voltage/capacity)
Supply rated voltage.
Provide power source with
enough capacity.
Flow display is not
stable. (Analog output
is not stable. Output is
chattering.)
Malfunction caused by noise.
Keep FSM2 main body and cable
away from noise source.
It doesn’t move at
power supply on by
abnormal display.
It turned on power with the
button had been pushed.
The power supply is put again
without pushing the button.
Hysteresis fixed value setting display
Hysteresis fixed value selection
To instantaneous flow rate display
Press once. (determination)
…
<Approx. 1%F.S.>
<Approx. 2%F.S.>
<Approx. 8%F.S.>
When window operation or auto reference is
selected.
Press or key to select hysteresis fixed value.
Press key to set.
Flow rate unit setting display
Setting of flow rate unit
To instantaneous flow rate display
Press once. (determination)
<ANR: Standard condition>
<NOR: Reference condition>
Note: NOR display is calculation value.
Press or key to select flow rate unit.
Press key to set.
Eco mode setting display
Setting of Eco mode
Press once. (determination)
ｍＬ
/
ｍｉｎ
Ｌ
Eco mode ON : If any key is not carried out for approx. 1 min., the display is turned off.
Press any key to show the indication.
<Eco mode OFF>
<Eco mode ON>
Press or key to select eco mode.
Press key to set.
Reset setting
To instantaneous flow rate display
Press once. (determination)
Reset setting display
<Reset is not executed>
<Reset is executed>
Setting at shipping out of factory
Item Setting
at
shipping out of factory
Switch out put
OFF
Zero adjustment value
Zero
Integrating flow rate value
Zero
Flow direction
One-direction
Auto reference (CH2 setting)
Switch output
Response time
SP1
（
50msec
）
Display speed
250msec
Sub-display
Flow direction display
Displayed color
Red when ON. Green when OFF.
Hysteresis 1%FS
Flow rate unit
ANR
Eco mode
OFF
Press or key to select reset setting.
Press key to set.
－7－
Discontinue
