Specifications

748414-A

August 1999

Heated Flame Ionization Detector Analyzer Module

Rosemount Analytical NGA 2000

STARTUP AND OPERATION

the network to locate and identify all components on the network. The user will have to

bind appropriate combinations of components after the startup sequence. (See section

3.3.)

7. Check the general health of the analyzer by reviewing the status of the Self Tests. All

“Pass” conditions should be obtained.

These test results can be found by selecting the following from the Main Menu:

Technical Level Configuration, Diagnostic Menus, Analyzer Module Diagnostics, Self

Test. All tested parameters should indicate "Pass."

Descriptions of the tests performed follow:

• EEPROM test - Checks the EEPROM on the Analysis Computer PCB.

• EPROM test - Checks the EPROM on the Analysis Computer PCB.

• RAM test - Checks the RAM on the Analysis Computer PCB.

• Power supply test - Verifies that all internal DC voltages are within the required

tolerances.

• Network test - Checks the internal network interface.

• 20 bit ADC test - Checks the 20-bit ADC on the Analysis Computer PCB by sending

a DC signal through the Preamp PCB and reading the signal back with the 20-bit

ADC.

• 12 bit ADC test - Checks the 12-bit ADC on the Analysis Computer PCB by sending

a DC signal and reading the signal back with the 12-bit ADC.

• Power Supply PCB test - Checks the presence of the Power Supply PCB by

activating the 3-way air solenoid.

• Safety PCB test - Checks the presence of the Safety PCB by sending a command

and reading it back.

• Case temperature test - Compares the temperature read between the 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 sensors are working

properly.

• Oven/Sample Temperature test - Compares the temperature read between the

sample temperature sensor and the oven temperature sensor. They must be within

50°C of each other.