VICI D-4-I Quick Start - Manual (Page 2)

Caution:
• Always make sure that discharge gas is
flowing before heating and powering up
the detector.
1. Before installing the column, set the gas flow to
30 ml/min (measured at the detector vent). Let it
flow for 15 minutes so that all air is purged from the
helium purifier.
2. Plug in the helium purifier.
3. Install the column as illustrated at right.
4. Turn on the MAINS switch on the back of the
controller. Set the MODE switch on the front
panel of the controller to PDHID.
5. Set the detector temperature and allow time for
the detector and helium purifier to reach the set
temperature.
6. Turn on the DISCHARGE switch on the front panel
of the controller.
The discharge should start within five minutes. In a
clean system, the discharge will have a peach/pink color.
A purple discharge indicates leakage or impurities in the
system.
7. Check the standing/background current on the
controller display. Optimum current is 1.0 - 2.5 nA.
11.4 cm
COLUMN
INLET
COLUMN
FERRULE
NUT
CAPILLARY
COLUMN
CAPILLARY
COLUMN
ADAPTER
(IZERA1.5)
9.8 cm
(set at the
factory)
COLUMN
INLET
PACKED
COLUMN
ADAPTER
(I-23642-D4RU)
PACKED
COLUMN
Initial Power-Up
Electrical Connections
CONTROLLER
(Rear panel)
ELECTROMETER
BIAS-A
BIAS-B
RED
BLACK
WHITE
GREEN
BROWN
BLUE
ORANGE
YELLOW
RED
BLACK
GREEN
WHITE
0 - 10 V
Common
0 - 1 V
Shield
COM
SET
UNATTENUATED
OUTPUT
AUTO
ZERO
TO COMPUTER
OR INTEGRATOR
+
– ATTENUATED
OUTPUT
SHIELD
TO
RECORDER
(no connection)
HEATER CABLE
FROM DETECTOR
PULSER
MODULE
HIGH
VOLTAGE