VICI TCD2 - Manual (Page 17)

13
Installation
EZU1
Used with 1/16" column
EZRU21
Used with 1/8" column
ZU1C with fused silica adapter
Column size
.32 mm ID x .5 mm OD
.25 mm ID x .4 mm OD
< .2 mm ID
Adapter required
FS1R.5
FS1R.4
FS1R.2
Packed Columns with Swagelok®-type Female Nut
The connection of these columns is similar to that for standard packed
columns, but requires a union which adapts the female nut to the Valco
fitting.
Capillary Columns
Connection of these columns requires the use of the ZU1C with the appro-
priate fused silica adapter. For a .53 mm ID x .8 mm OD column, use the
FSR1.8 supplied with the TCD. For other sizes, use this table to determine
the proper adapter:
Testing for Leaks
It is critical for the system to be leak-tight, and an additional check at this
point can save many headaches later on. To test for leaks:
1. Insure that both outlets are capped.
2. Pressurize the entire system with helium to 138 kPa (20 psi).
3. If the system does not hold pressure, check all the fittings with an
electronic helium leak detector. DO NOT use leak detecting liquids.
Electrical Connections
Before connecting the detector cable to the control
module, make sure that the control module power cord is
unplugged.
1. The heater and filament connections from the detector to the rear panel of
the controller are made up in one cable. After making sure that the control
module power cord is not plugged in, connect this detector cable to the
connector on the control module. The cable connector should be firmly
seated by turning the coupling ring clockwise until the detent is felt.
For best detector performance, the cable and connector
should not be allowed to move while measurements are
being made. If the cable is disconnected, exercise care
to keep the connecting pins in each connector clean.