3-22 | Model 888 ATEX IECEx Tail Gas Analyzer
The default time out is 5 minutes but the time-out period is program-
mable. If the password has timed out, the user will be prompted to log
in again.
The analyzer pasword is factory set as“2222” and allows the user to access
all of the functions available in the Actions, Configure and some of the
Diagnose menu screens.
Starting Normal Operation
1. Connect the air supply and set the pressure regulator for approxi-
mately 55-75 psig.
2. Set the Aspirator supply pressure for 5-10 psig above expected pro-
cess pressure by using Regulator (PCV2) and Pressure Gauge (GA1)
mounted on the Manifold.
3. Open the sample inlet ball valve (FV1) and the sample return valve
(FV2) at the bottom of the aspirator. Close and tighten the latches on
oven enclosure.
4. Verify that the electronics enclosure and detector enclosure doors are
closed and properly secured.
5. Apply AC power and note controller display screen activity.
Figures 3-7a. Start-up and Conguration Pressures screen.
The analyzer will start in Period 1, Special Flush, and will step to Period 2,
Flush & Zero, when the default Period 1 timer times out. Air (or nitrogen)
will be flowing back through the sample system; this prevents sample gas
from entering the system until the sample cabinet is up to proper operat-
ing temperature (nominally 150°C). Refer to the logic table (Fig. 3-9b or
3-9e) alongside the flow diagram in the customer drawing package or
Tabel on Page 3-25 of this manual.
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