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3
Installation and Use
Agilent 990 Micro GC Installation
Agilent 990 Micro GC Installation
If you are installing the Agilent 990 Micro GC for the first time, follow the steps as described below.
If you are performing a reinstallation, see
Step 1: Connect carrier gas
Install gas regulators and set pressures
Carrier gas cylinders should have a two-stage pressure regulator to adjust the carrier gas pressure
to 550 kPa ±10 kPa (80 psi ±1.5 psi). Set cylinder regulator pressure to match the gas inlet
pressure.
Connect carrier gas to the Micro GC
The Agilent 990 Micro GC supports the use of helium, nitrogen, argon and hydrogen. The carrier
gas configuration is on the rear panel. The minimum recommended purity for carrier gas is 99.999
%. Connect the carrier gas to the Micro GC Carrier 1 fitting and Carrier 2 fitting, if available. Turn on
the gas flow. See
Step 2: Connect to calibration gas or checkout sample
Install the external filter unit as described in
Connect the sample to the heated sample inlet as described in
Micro GC
Step 3: Install power supply
Connect the power connector to the Agilent 990 Micro GC, and then plug the power cord into an
appropriate power source. See
easy reach of the operator, as it functions as a power disconnect switch.
The green LED lights when all parameter set points in the system are reached. (See
page 17.)
Your Micro GC is shipped from the factory with default settings. These events take place within
the Agilent 990 Micro GC when power is activated for the first time:
1 When the Micro GC is turned on, the system begins the flush cycle procedure. The status light
will flash yellow during the flush. The flush cycle is a two minute cycle in which the various
valves are activated and deactivated to flush entrapped air from the manifold, valves, and
tubing.
2 The default method is activated after the flush cycles finishes.
3 All heated zones are set at 30 °C.
4 The detector filaments are set to OFF.
36
Carrier Gas Connection
on page 49.
Power
Long Storage Recovery Procedure
on page 26.
Using the External Filter Unit
Connecting a Sample to the 990
on page 27. Ensure that the power supply is placed within
Agilent 990 Micro GC User Manual
on page 41.
on page 47.
Front View
on
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