Instruction manual

Instruction Manual
HAS64E-IM-HW
September 2008
NGA 2000 HFID
3 - 3OperationEmerson Process Management GmbH & Co.OHG
• Case temperature test - Compares the tempera-
ture read between Preamp temperature sensor
and the case temperature sensor. They must be
within 10°C of each other. This test sometimes
fails if the case is opened. The sensor in the
Preamp will take longer to cool off since it is in an
enclosure. Re-running the self-test after thermal
equilibrium will produce a positive result if the sen-
sors are working properly.
• Oven/Sample Temperature test - Compares the
temperature read between the sample tempera-
ture sensor and the oven temperature sensor.
They must be within 50°C of each other.
5. Wait for the Purge Air green LED to illuminate.
b) Temperature/Pressure Settings and Check
1. Introduce the remaining supply gases. (See sec-
tion 1-5 Specifications)
2. Set and verify the internal gas pressures.
Check pressure settings with the values defined
in your Test Data Sheet (Figure 3-12).
Table 3-1: Typical Operation Pressures
Purge air of the following specifications must be
present:
Flow: 16 to 18 l/min
Supply Pressure: 689 to 1,378 hPa-gauge
(10 to 20 psig)
Noncompliance could case damage to the mod-
ule. At the very least, the module´s safety system,
which requires a certain volume of purge air flow-
ing through the case before allowing burner igni-
tion, will not allow the instrument to operate. The
lowest purge air flow/pressure setting possible
during burner operation is preferable.
This, the user should set the external purge air
pressure initially at 689 hPa-gauge (10 psig).
Check the "Miscellaneous Control Parameters"
screen (Figure 3-2), and note whether the Purge
Gas (switch) variable is "ON". If it is "OFF", in-
crease purge air supply by 69 hPa-gauge (1 psig),
and recheck the Purge Gas variable until it reads
"ON".
DO NOT EXCEED 1378 hPa-GAUGE (20 PSIG).
If the maximum setting is reached, and the Purge
Gas variable does not read "ON", contact factory.
If the safety system is initiated successfully (Purge
Gas variable is "ON"), continue with the remain-
der of the startup procedure.
NOTE
Do not restrict the PURGE OUT port and
the pressure relief valve. They must be
vented to atmospheric pressure.
Main (Menu)...
System Configurations and Diagnostics...
Diagnostic Menu...
Analyzer Module Diagnostic...
Miscellaneous Control Parameters...
Figure 3-2: Miscellaneous Control Parameters
Internal Pressure
Regulator
Typical Operating Pressures
Burner Air 965 to 1103 hPa-gauge (14 to 16 psig),
nominal 1030 hPa (15 psig)
Fuel 1516 to 1723 hPa-gauge (22 to 25 psig),
nominal 1640 hPa (23.8 psig)
Sample
(non-adjustable)
206 to 290 hPa-gauge (3.0 to 4.0 psig),
nominal 260 hPa (3.8 psig)
Line#1
HOME ESCAPE TEST
0.000 ppm
Miscellaneous Control Parameters
Case Heater Current:
Burner Air Valve Current:
Alarm Messages valid for:
Ignition Command Status:
Fuel Enrichment S
tatus:
Flame Status:
Purge Gas Switch:
Ignition Status:
Fuel Type:
410 mA
0.3 mA
FAILURE
OFF
OFF
ON
OFF
OFF
H2-He