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7
Troubleshooting
Problem
The self-checking output is
produced.
Internal
signal
"Error 3" is
error
indicated on the
Err3
Display.
"Error 4" is
Err4
indicated on the
Out of the ambient temperature
Display.
"Error 6" is
indicated on the
Internal data error
Err6
Display.
A power cable is not wired.
The power supply voltage is out
of specification.
The display is not turn on.
The fuse is in the "ON" position.
The 4-20 mA signal is not
output.
The power switch is not ON.
TC-Mi is out of order.
The tube is damaged.
Water leaks out of the
The joint is damaged.
inflow port or drain port.
The inflow port or drain port is
damaged.
Water leaks out of the
The drain cap is damaged.
drain.
The drain is damaged.
Dirt has been collected in the
measurement bath.
Water leaks out of the
measurement bath.
The measurement
water's flow rate is much.
The 4-20 mA analog signal
The 4-20 mA signal output
output is being fixed.
does not work.
The equipment is out of order.
When Err3 is displayed, the self-checking output is produced, 3 mA is output to the signal
output.
26
Cause
Inspection and corrective action
The cover is not
Mount the cover correctly.
mounted correctly.
The equipment is
TC-Mi needs repair. Contact your dealer.
out of order.
Use the equipment in the measured water
temperature (0 to 40°C) and the ambient
temperature (-20°C to 50°C).
Turn OFF the power switch and turn it ON
again. If the error is displayed again, the
product must be repaired. Contact your dealer.
Wire the power cable correctly.
Use the product within the power supply
voltage (24 VDC ±10%).
Get rid of a possible cause why the
fuse has been in "ON" position, and
switch it to the normal (OFF) position.
Normal position
"ON" position
Turn ON the power switch.
TC-Mi needs repair. Contact your dealer.
If the tube have length to spare, cut off
the tip. Replace the tube.
The joint must be replaced.
Contact your dealer.
TC-Mi needs repair. Contact your dealer.
The drain cap must be replaced.
Contact your dealer.
TC-Mi needs repair. Contact your dealer.
Clean the measurement bath.
Use the product with a measurement
water's flow rate of 100-200 ml/min.
Turn off DIP SW1-3.
TC-Mi needs repair. Contact your dealer.
8
Maintenance
Maintenance
■Cleaning is required in proper interval (the interval depends on the water quality).
Clean the following locations:
• Clean the measurement tank and Deaerator using a clean soft cloth.
If dirt accumulates at the bottom of the measurement tank, detach the drain cap
and drain off the water before cleaning it.
MO DE
• Clean the measurement windows (2 places) using a clean soft cloth.
• If the cover or panel is contaminated, first wipe away lightly with a clean soft cloth
immersed in a diluted mild detergent solution and then wipe off the moisture by
using a dry clean soft cloth.
Caution
•Do not use organic solvent such as benzene for cleaning this product.
Do not wipe TC-Mi with organic solvent such as benzine.
•Wiping the light source window with a hard cloth may cause scratches, which disables
the correct measurement. Use a clean soft cloth or a cotton swab to remove dirt.
Pull out (②) while pressing down
the tip (①) of the drain cap.
①
Drain cap
②
27
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