Alarms & Safety Functions - Sanyo MCO-5M Instruction Manual

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
If the chamber temperature exceeds
Upper limit
the upper limit alarm temperature set
temperature alarm
value.
If the chamber temperature deviates
Automatic set
from the set temperature by ±1
temperature alarm
more.
Automatic set CO If the chamber CO
2
density alarm from the set value by ±1% or more.
Automatic set O If the chamber O
2
from the set value by ±1% or more.
density alarm
When there is no key pressing in
Auto-return
each setting mode for 90 seconds.
Key lock When the key lock is "ON".
CO gas cylinder If the CO
2
empty when the CO
N /O gas cylinder If the O
2 2
empty when the N
CO gas line When the gas supply line is switched.
2
changeover (only when MCO-5GC is installed)
O /N gas line
2 2
When the gas supply line is switched.
changeover
Wrong CO gas line If the CO
2
connection supply line.
Wrong selection of
If the N
gas between N and
2
wrongly.
O
2
If the temperature sensor is
Chamber disconnected.
temperature sensor
abnormality
If the temperature sensor is short
circuited.
29
Situation
o
C or
density deviates
2
density deviates
2
density does not increase
2
gas valve is opened.
2
density does not change
2
/O gas valve is opened.
2 2
gas is connected to wrong gas
2
gas or O gas is selected
2 2
Indication
Over heat lamp lights.
E12 or E16 and chamber
Continuous tone
temperature are displayed
alternately.
All digits on the Intermittent tone with
temperature indicator blink. 15 minutes delay.
All digits on the CO Intermittent tone with
2
density indicator blink. 15 minutes delay.
All digits on the O Intermittent tone with
2
density indicator blink. 30 minutes delay.
Normal display mode.
-----
E01 is displayed alternately
with the temperature on the Intermittent tone
temperature indicator.
E02 is displayed alternately
with the temperature on the Intermittent tone
temperature indicator.
E01 is displayed alternately
with the temperature on the
temperature indicator.
Intermittent tone
The empty gas supply line
is displayed on the CO
2
density indicator.
E02 is displayed alternately
with the temperature on the
temperature indicator.
Intermittent tone
The empty gas supply line
is displayed on the O
2
density indicator.
E03 is displayed alternately
with the temperature on the Intermittent tone
temperature indicator.
E04 is displayed alternately
with the temperature on the Intermittent tone
temperature indicator.
E05 is displayed alternately
with the temperature on the
temperature indicator.
Intermittent tone
E06 is displayed alternately
with the temperature on the
temperature indicator.
85
Buzzer Safety operation
Heater OFF
Remote alarm
Remote alarm with 15
minutes delay
Remote alarm with 15
minutes delay
Remote alarm with 30
minutes delay
The setting mode is
-----
canceled.
----- The setting is disabled.
Remote alarm
Remote alarm
Automatic changeover
of N /O gas connection
2 2
port.
Gas supply line is
altered.
Remote alarm
Gas supply line is
altered.
Remote alarm
Remote alarm
N /O valve and CO
2 2
Valve are closed.
Remote alarm
N /O valve and CO
2 2
Valve are closed.
Heater OFF
Remote alarm
2
2