Instruction manual for CoolSafe
01012016QA01
Item No. 700636
CopyRight © 2016
Page
24
of
35
7.4
Error codes
The following situations will invoke an alarm that will be shown in the status line on the touch screen:
Displayed code
Description
-55 °C
-95 °C
&
-100 °C
-110 °C
E01
Temperature sensor error
– PT-100 connection broken or
sensor not attached to the system.
Alarm
Temperature under freeze drying exceeds this temperature.
-20 °C
-65 °C
-50 °C
E03
Temperature sensor error
– PT-100 shorted or outside
range.
E04
Pressure sensor error - Pirani connection broken or sensor
not attached to the system.
Cool only
The pressure in the ice condenser is exceeding the alarm
pressure.
Power out
A power out has occurred.
E08
Pressure sensor error - Pirani shorted or outside range.
E09
The safety pressure sensor on stage 1 is active. Restart
compressors on stage 1 and stage 2 by manual resetting of
the safety pressure sensor.
N/A
E10
The safety pressure sensor on stage 2 is active. Restart of
compressor 2 is performed automatically be the auto-reset
function. If the safety pressure sensor is activated 3 times in
a 20-minute period, it must be reset by powering the
compressor down and turning it on again.
N/A
8
Preparations
Check that the CoolSafe ice condenser is free from ice and water, and that all valves i.e. the drain
valve is closed. Check that there is no water in the drain valve.
Note
Do not use any tools to close valves, as they will easily be damaged.
Check that the gas ballast valve on the vacuum pump is open at all times.
Check the oil level in the pump and the oil mist filter. The filter should have only a maximum
10 mm oil level (preferably it should be empty).
Switch on the CoolSafe and the vacuum pump.
The lowest temperature (-100 °C on the CoolSafe 100-9 Touch Superior XS and -95 °C with
CoolSafe 95-15 Touch Superior XL) should be achieved within 60 minutes.
The vacuum pump should now be allowed to run for at least 30 minutes to achieve the
lowest vacuum performance. In this “warm up” phase the gas ballast control ideally should
be open but closed during the primary and secondary drying phases. Please note that
vacuum will not be applied to the condenser at this juncture. The electronic vacuum valve
