Corrosion Protection
Thermo Scientific
Evolution Pro Spectrophotometer User Guide
11
Note
Ensure the tubing does not obstruct the light beam or prevent the sample
compartment door from closing. If necessary, secure the tubing using cable clips or ties.
Use dry air or dry nitrogen to reduce or eliminate condensation. The purge gas must be free of
moisture, oil and other reactive materials. To remove particulate matter and oil, install a
10-micrometer filter. Connect the flow of purge gas to the 1/4-inch internal diameter tubing
purge fitting on the back of the spectrophotometer.
The Evolution Pro does not feature a dedicated purge port. Route the tubing for the purge
gas into the sample compartment through one of the openings in the baseplate in the well
beneath the reference position. A flow rate of 17 liters per minute is recommended to
completely replace and exclude room air from the sample compartment.
Installing a Liquid Thermostatted Accessory
Liquid thermostatted accessories have ports to attach hoses from an external thermostatted
recirculator. The heated or cooled liquid flows through internal chambers within the metal
block where the cells are held, bringing that block to the same temperature as the liquid. The
cuvettes then come to the same temperature as the block.
❖
To install a thermostatted accessory
1.
Install the accessory in the sample compartment.
2.
Route the tubing from the recirculator through the two openings at the base of the
sample compartment front cover.
“Routing Tubing or Cables into the Sample Compartment”
3.
Use additional tubing and adapters (not included), if necessary, to size the tubing from
the recirculator to match to the ports on the accessory.
For a cell changer, set the changer to position 1 before connecting the tubing to the ports on
the accessory. Allow just enough tubing inside the sampling compartment to permit the cell
changer to move through all possible positions
WARNING
•
Do Not use a flammable gas to purge the instrument
•
N'utilisez jamais de gaz inflammable pour purger l'instrument
•
Verwenden Sie niecontact us
•
mals entflammbares Gas zum Spülen des Instruments
•
Non utilizzare mai un gas infiammabile per spurgare lo strumento
•
Nunca use un gas inflamable para purgar el instrumento
