Emerson 3081FG instruction manual in MANUAL?, Accept LOW O2

Instruction Manual

IB-106-3081 Rev. 1.5 September 2002

Model 3081FG

a.IN MANUAL? Refer to Figure 3-27.

Failure to remove the analyzer from automatic control loops prior to per- forming this procedure may result in a dangerous operating condition.

If the O2 output value is used in any auto- matic process control loops, the loop must be placed in manual before beginning a calibration check.

O2 CONCENTRATION

%

%

HIGH CALIBRATION

CHECK GAS O2 VALUE

Once the analyzer is removed from any automatic control loops, press ENTER to edit the screen. Use the arrow keys to se- lect Y (yes) and press ENTER to process the selection and to display the ACCEPT HIGH O2 screen.

O2 CONCENTRATION

%

Y/N (FOR USER

RESPONSE)

26020054

Figure 3-27. IN MANUAL?

26020055

Figure 3-28. ACCEPT HIGH O2

b.ACCEPT HIGH O2

Refer to Figure 3-28. After pressing ENTER to begin the calibration check, the high cali- bration check gas starts to flow. After wait- ing approximately three minutes for the displayed O2 value to settle, press NEXT to accept the high calibration check gas read- ing and apply the low calibration check gas. The next screen to display is the ACCEPT LOW O2 screen.

c.ACCEPT LOW O2

Refer to Figure 3-29.Once the low calibra- tion check gas is applied, wait approxi- mately three minutes for the displayed O2 value to settle. Once the value settles, press NEXT to accept the reading and to display the SLOPE screen.

3-14 Startup and Operation Rosemount Analytical Inc. A Division of Emerson Process Management