Model 3081FG

Instruction Manual

IB-106-3081 Rev. 1.5 September 2002

O2 CONCENTRATION

O2 CONCENTRATION

%

%

3

 

HIGH CALIBRATION

 

CHECK GAS O2

26020015

PERCENTAGE

26020049

Figure 3-15. TRIM 20 mA?

i.TRIM 20 mA?

Refer to Figure 3-15. Use this screen to trim the 20 mA value of the 4-20 mA output.

NOTE

Before trimming the 20 mA value, you must break the loop to add the amme- ter. Power down the unit, connect the ammeter in series with Model 3081 Transmitter terminals 15(-) and 16(+), power up the unit, and return to the TRIM 4 mA? screen.

Press ENTER to begin editing. Use the ar- row keys to select and change the screen value to the value displayed on the installed ammeter. Press ENTER to accept the value. After the value is entered, the unit calibrates itself to ensure it outputs 20 mA. Both the display and the ammeter will up- date to 20 mA. Pressing EXIT returns to the initial TRIM 20 mA? screen, and pressing NEXT displays the SET HI BOTTLE O2 screen.

j.SET HI BOTTLE O2

Refer to Figure 3-16. Use this screen to identify, within the electronics, the percent- age of O2 used as the high calibration check gas. Press ENTER to begin editing. Use the arrow keys to select and change the screen value to the O2 percentage of the high cali- bration check gas. Press EN TER to accept

Figure 3-16. SET HI BOTTLE O2

the value. Press NEXT to display the SET LO BOTTLE O2 screen.

k.SET LO BOTTLE O2

Refer to Figure 3-17. Use this screen to identify, within the electronics, the percent- age of O2 used as the low calibration check gas. Press ENTER to begin editing. Use the arrow keys to select and change the screen value to the O2 percentage of the low cali- bration check gas. Press ENTER to accept the value. Press NEXT to display the SET O2 TRACKING screen.

O2 CONCENTRATION

%

LOW CALIBRATION

CHECK GAS O2

PERCENTAGE

26020050

Figure 3-17. SET LO BOTTLE O2

Rosemount Analytical Inc. A Division of Emerson Process Management

Startup and Operation 3-9

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Emerson 3081FG instruction manual SET HI Bottle O2, SET LO Bottle O2, Concentration