Back to website > OPTIC, LINEX, PHASER Help Desk > Knowledgebase

Search help:

CryoTrap cannot reach low setpoint


If the cryotrap cannot reach the low setpoint it could be related to:

LN2 version;

- Pressure in the Dewar is not high enough. (should be 1.5 BAR)

- Dewar is empty.

- The supply tubing was bent too many times, is too long or the ID is too small. ( Use as in the User Guide. page E 1.)

- Lowest temperature can be -150°C.


CO2 version;

- It could be that the restriction tube is blocked and needs to be replaced. See page E 2 of the User Guide.

- Also make sure that the setup is exactly like in the user guide on page E 2. (position of valve and tubings can make a big difference) 

P/No. 2406-2608 1/16 inch SS tube x 0.25mm x 230mm  .

- Bad electrical valve.

P/No: 2406-4307 CO2 Cryogenic Solenoid Valve Assembly 

- Lowest temperature can be -50°C.

Was this article helpful? yes / no
Related articles I am not sure what liner I should use.
CryoTrap temperature is not stable, what you be the problem.
the film of the column is gone at the entrance and the exit of the cryotrap.
What should be the minimum and maximum Air pressure for the OPTIC cooling valve?
I have unstable flows and pressure, what could this be?
Do I need Peltier cooling with the OPTIC inlet?
Can the industry-standard (¼-inch (6.4 mm) o.d. x 3½-inch (89 mm) long) sorbent tubes be used with OPTIC?
I cannot find the part numbers.
Article details
Article ID: 64
Category: OPTIC
Rating (Votes): Article not rated yet (0)

« Go back

Powered by Help Desk Software HESK, in partnership with SysAid Technologies