Oven Cryo System With Liquid Nitrogen Connection - Thermo Scientific TRACE 1600 Hardware Manual

1
Installation
Connecting the Oven Cryogenic System

Oven Cryo System with Liquid Nitrogen Connection

16 TRACE 1600/1610 Hardware Manual
3. Connect the cryo valve to the Aux Temperature/Cryo Module.
IMPORTANT The Auxiliary Temperature/Cryo must be powered at the same line voltage
of the main GC system.
a. Connect the cryo solenoid valve to the 2-pin connector marked Cryo Valves - Oven
using the cable provided. See
Figure 15. Cryo Valves: Oven
b. Using the cable provided, connect the 15-pin female connector marked GC Bus on
the module to a Bus interface on the back of the GC.
c. Plug the power cable to the AC Input connector on the front of the module and to
the wall outlet. The LED marked On lights up after the GC power on.
Note For further details regarding the installation of the Aux Temperature/Cryo module,
see the section "Adding an Aux Temperature/Cryo Module"
This Oven cryo system consists of a tube for liquid nitrogen inserted into the oven and fitted
with a 1/8-in. solenoid valve for liquid nitrogen mounted into the back of the GC.
The tube for liquid nitrogen is covered with an insulating material tube.
Liquid Nitrogen must be supplied at a pressure of 1.5 bar (150 kPa; 21.75 psig). Plumbing to
the GC should be 1/4-in. copper or stainless steel tubing with insulation. It is your
responsibility to ensure the delivery connection from the liquid nitrogen cryogenic supply is
adaptable to 1/4-in. tubing. The liquid nitrogen cryogenic valve on the GC is a 1/4-in.
Swagelok fitting.
Figure 24 shows the proper configuration for a liquid nitrogen tank.
Figure 15.
Oven Cryo Valve
on page 478.
Thermo Scientific