IB-106-340
7-7
7-7.
HART COMMUNICATOR O2 CAL METHOD.
To perform a calibration using the HART Communica-
tor, use the following procedure. If necessary, 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 arrow 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 pro-
cedure.
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 re-
moved from automatic control” warning appears.
Remove the Oxymitter 4000 from any automatic
control loops to avoid a potentially dangerous op-
erating condition and press OK.
c.
The next several screens indicate the calibration
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, re-
turn to the O2 CAL procedure.
g.
When the “Loop should be removed from auto-
matic control” warning appears, press OK.
h.
At the APPLY GAS 2 status prompt, select menu
item 2, NEXT CAL STEP. When the status dis-
plays GAS 2 FLOW, select menu item 4, EXIT,
to leave the O2 CAL procedure.
i.
From the PERFORM O2 CAL screen, view
menu item 3, CALSTATE, to monitor the cali-
bration 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, return
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 dis-
plays 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 cali-
bration 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.
Summary of Contents for Oxymitter 4000
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