Fuji Electric ZKMA, Instruction Manual

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6.4.2 Checking the error information
Display
message
State Remarks
Er1 Fault of heater temperature
Appears when control temperature of the heater exceeds
the set range.
The heater control is stopped.
Er2 Disconnection detection
Appears when disconnection is detected at the sensor, or
thermocouples for temperature control.
The heater control is stopped.
Er3 Sensor error Appears when the A/D value is saturated.
Er4 Span calibration error
Appears when the span calibration is abnormal.
(The calibration gas is unstable. / The calibration factor
setting is inappropriate.)
Er5 Zero calibration error
Appears when the zero calibration is abnormal.
(The calibration gas is unstable. / The calibration factor
setting is inappropriate.)
6.4.3 Checking the alarm information
Display
message
State Remarks
ALM Oxygen concentration error
Appears when the oxygen concentration exceeds any of
specified HH / High / Lower / LL limit values.
(Refer to “10.5.4” to “10.5.8”)
H High limit error Appears together with ALM.
L Lower limit error Appears together with ALM.
HH HH limit error Appears together with ALM.
LL LL limit error Appears together with ALM.
You can select one of the following seven alarms to output to the alarm contact (Contact No. 21 and 22 of the
external terminal blocks) when an oxygen concentration error occurs.
(1) [Not used] : No alarm is output to the contact output.
(2) [High limit alarm] : Alarm contact is output when an high limit alarm occurs.
(3) [Lower limit alarm] : Alarm contact is output when a lower limit alarm occurs.
(4) [HH limit alarm] : Alarm contact is output when an HH limit alarm occurs.
(5) [LL limit alarm] : Alarm contact is output when a LL limit alarm occurs.
(6) [High/lower limit alarm] : Alarm contact is output when an high or lower limit alarm occurs.
(7) [HH / LL limit alarm] : Alarm contact is output when an HH or LL limit alarm occurs.