Filter
Top Products
Instruction Manual
IB-106-340 Rev. 2.4
April, 2001
5-8 HART/AMS Rosemount Analytical Inc. A Division of Emerson Process Management
Oxymitter 4000
5-7 HART COMMUNICATOR MANUAL
O
2
CAL METHOD
To perform a calibration using the HART Com-
municator, use the following procedure. If nec-
essary, use the menu tree in Figure 7-3 (sheet 1
of 3) for reference.
NOTE
To select a menu item, either use the
up and down arrow keys to scroll to
the menu item and press the right ar-
row key or use the number keypad to
select the menu item number.
To return to a preceding menu, press
the left arrow key.
a. From the PERFORM O2 CAL screen, select
menu item 1, O2 CAL, to access the O2
calibration procedure.
Failure to remove the Oxymitter 4000
from automatic control loops prior to
performing this procedure may result
in a dangerous operating condition.
b. In the first O2 CAL screen, a “Loop should
be removed from automatic control” warning
appears. Remove the Oxymitter 4000 from
any automatic control loops to avoid a po-
tentially dangerous operating condition and
press OK.
c. The next several screens indicate the cali-
bration status. At each of the following
status prompts, select menu item 2, NEXT
CAL STEP:
COMPLETE
CAL RECOMMENDED
APPLY GAS 1
GAS 1 FLOW
d. At this point, select menu item 4, EXIT, to
leave the O2 CAL procedure.
e. From the PERFORM O2 CAL screen, view
menu item 3, CALSTATE, to monitor the
calibration status as it updates. Or, access
the O2 CALIBRATE screen and select
menu item 2, O2 CAL STATUS, to view
menu item 1, CALSTATE; menu item 2,
TIMEREMAIN; and menu item 3, PRESENT
O2, as the calibration status updates.
f. When CALSTATE displays APPLY GAS 2,
return to the O2 CAL procedure.
g. When the “Loop should be removed from
automatic control” warning appears, press
OK.
h. At the APPLY GAS 2 status prompt, select
menu item 2, NEXT CAL STEP. When the
status displays GAS 2 FLOW, select menu
item 4, EXIT, to leave the O2 CAL proce-
dure.
i. From the PERFORM O2 CAL screen, view
menu item 3, CALSTATE, to monitor the
calibration status as it updates. Or, access
the O2 CALIBRATE screen and select
menu item 2, O2 CAL STATUS, to view
menu item 1, CALSTATE; menu item 2,
TIMEREMAIN; and menu item 3, PRESENT
O2, as the calibration status updates.
j. When CALSTATE displays STOP GAS, re-
turn to the O2 CAL procedure.
k. When the “Loop should be returned to
automatic control” message appears, return
the Oxymitter 4000 to the automatic control
loops previously removed and press OK.
l. At the STOP GAS status prompt, select
menu item 2, NEXT CAL STEP. When the
status displays PURGING, select menu item
4, EXIT, to leave the O2 CAL procedure.
m. From the PERFORM O2 CAL screen, view
menu item 3, CALSTATE, to monitor the
calibration status as it updates. Or, access
the O2 CALIBRATE screen and select
menu item 2, O2 CAL STATUS, to view
menu item 1, CALSTATE; menu item 2,
TIMEREMAIN; and menu item 3, PRESENT
O2, as the calibration status updates.
n. When CALSTATE displays COMPLETE,
the calibration is finished.