Purge Operation Requirements - Thermo Scientific Prima PRO User Manual

Purge Operation
Requirements
Thermo Fisher Scientific
Table A–5. Types of purge controllers
Power switch
Purge initialisation
Purge timer
Action on purge fail
Purge fail override
The following tables specify the purge and air supply parameters
required to ensure safe operation of the instrument.
Table A–6. Parameter values and air requirements
Enclosure Internal Free Volume
Initial Purge Flow Rate
Minimum Purge Time
Minimum Quantity of Protective
Gas Required
Continuous Dilution and
Pressurisation Flow Rate
Exp
Electrical contactor
interlocked to purge
status and e-stop
button
Automatic, following
initial enclosure
pressurisation
Electronic
4-second warning,
then automatic
power switch off
Controller function
(password protected)
Prima PRO & Sentinel PRO Mass Spectrometers User Guide
Hazardous Area Operation
X-purge
Electrical contactor
interlocked to purge
status and e-stop
button
Automatic, following
initial enclosure
pressurisation
Electronic
4-second warning,
then automatic
power switch off
Controller function
(password protected)
190 L 235 L
100 Nl/min 100 Nl/min
11 minutes 15 minutes
1100 L 1500 L
100 NL/min 100 NL/min
Purge Operation
Z-purge
Electrical contactor
interlocked to e-
stop button
Manual
Manual
Alarm generated
N/A
45 L
100 Nl/min
3 minutes
300 L
100 NL/min
A-9