Sanyo MCO-5M - Alarms and Safety Functions Table

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ALARMS & SAFETY FUNCTIONS
This unit has the alarms and safety functions shown in table below, and also self diagnostic functions.
Alarms and safety functions
Alarm & Safety Situation Indication Buzzer Safety operation
Upper limit
temperature alarm
If the chamber temperature exceeds
the upper limit alarm temperature set
value.
Over heat lamp lights.
E12 or E16 and chamber
temperature are displayed
alternately.
Continuous tone
Heater OFF
Remote alarm
Automatic set
temperature alarm
If the chamber temperature deviates
from the set temperature by ±1
o
C or
more.
All digits on the
temperature indicator blink.
Intermittent tone with
15 minutes delay.
Remote alarm with 15
minutes delay
Automatic set CO
2
density alarm
If the chamber CO
2
density deviates
from the set value by ±1% or more.
All digits on the CO
2
density indicator blink.
Intermittent tone with
15 minutes delay.
Remote alarm with 15
minutes delay
Automatic set O
2
density alarm
If the chamber O
2
density deviates
from the set value by ±1% or more.
All digits on the O
2
density indicator blink.
Intermittent tone with
30 minutes delay.
Remote alarm with 30
minutes delay
Auto-return
When there is no key pressing in
each setting mode for 90 seconds.
Normal display mode. -----
The setting mode is
canceled.
Key lock When the key lock is “ON”. ----- ----- The setting is disabled.
CO
2
gas cylinder
empty
If the CO
2
density does not increase
when the CO
2
gas valve is opened.
E01 is displayed alternately
with the temperature on the
temperature indicator.
Intermittent tone Remote alarm
N
2
/O
2
gas cylinder
empty
If the O
2
density does not change
when the N
2
/O
2
gas valve is opened.
E02 is displayed alternately
with the temperature on the
temperature indicator.
Intermittent tone
Remote alarm
Automatic changeover
of N
2
/O
2
gas connection
port.
CO
2
gas line
changeover
When the gas supply line is switched.
(only when MCO-5GC is installed)
E01 is displayed alternately
with the temperature on the
temperature indicator.
The empty gas supply line
is displayed on the CO
2
density indicator.
Intermittent tone
Gas supply line is
altered.
Remote alarm
O
2
/N
2
gas line
changeover
When the gas supply line is switched.
E02 is displayed alternately
with the temperature on the
temperature indicator.
The empty gas supply line
is displayed on the O
2
density indicator.
Intermittent tone
Gas supply line is
altered.
Remote alarm
Wrong CO
2
gas line
connection
If the CO
2
gas is connected to wrong gas
supply line.
E03 is displayed alternately
with the temperature on the
temperature indicator.
Intermittent tone
Remote alarm
N
2
/O
2
valve and CO
2
Valve are closed.
Wrong selection of
gas between N
2
and
O
2
If the N
2
gas or O
2
gas is selected
wrongly.
E04 is displayed alternately
with the temperature on the
temperature indicator.
Intermittent tone
Remote alarm
N
2
/O
2
valve and CO
2
Valve are closed.
If the temperature sensor is
disconnected.
E05 is displayed alternately
with the temperature on the
temperature indicator.
Chamber
temperature sensor
abnormality
If the temperature sensor is short
circuited.
E06 is displayed alternately
with the temperature on the
temperature indicator.
Intermittent tone
Heater OFF
Remote alarm