13
Errors and warnings
Measurement is disabled in the event of an error. You cannot resume measurement until the
cause of the error is removed and either the main unit is powered on again or “Run” – “Reset”
is executed from the menu.
(1) Warning message
Message
Description and corrective action
STAND-BY xx:xx
Appears for 20 minutes after the power is turned
on.
Because the heater and the optical system are
still unstable during the countdown period, any
measured data in the period is unreliable.
Close the door of the TC-WA.
(appears only when the TC-WA is
connected.)
Appears if the door of the TC-WA is open when it
starts running.
The process resumes when the door is closed.
(2) Error message 1
Error
code
Message
Description and corrective action
01
A/D FULL
The voltage of the A/D
converter of the optical system
has reached its upper limit.
Generated if the voltage of SIG1 or REF is 5V or
higher.
If the error occurs on the SIG side, it may be caused
by dirt or stains on the cell. If the error occurs on the
REF side, it may be caused by an increase in the
lamp’s light quantity, an increase in the sensitivity of
the photoelectric tube, or a fault in the circuit.
02
LAMP BROKEN
The light quantity of the lamp
(REF voltage) has dropped
below its lower limit.
Generated if the REF voltage is 0.5V or lower.
It may be caused by the degradation of the lamp, a
fault in the photoelectric tube for light quantity
compensation, or a fault in the circuit.
03
CELL DARK
The absorption cell is not clean.
Generated if the SIG voltage is 0.5V or higher.
Clean the absorption cell.
04
MOTOR ALARM (PUMP)
An alarm is generated from the
motor driver IC for air pump.
Generated if the motor driver IC for air pump has an
error.
Restart the system. If the error still persists, contact
us.
06
COOLING ERROR (H1)
FAN1 may not be running.
Generated if the temperature of H1 is not lower than
150°C on completion of the cooling process. The fan
may not be running or the cooling time may be too
short.
07
COOLING ERROR (H2)
FAN1 may not be running.
Generated if the temperature of H2 is not lower than
300°C on completion of the cooling process. The fan
may not be running or the cooling time may be too
short.
08
COOLING ERROR (H3)
FAN1 may not be running.
Generated if the temperature of H3 is not lower than
150°C on completion of the cooling process. The fan
may not be running or the cooling time may be too
short.
