Emerson Process Management OXYMITTER 4000 Calibration Hazardous Area, Oxymitter 4000 with LOI

Hazardous Area Oxymitter 4000

Instruction Manual

IB-106-340C Rev. 4.1 July 2004

calibration). If the slope or the	9-3 CALIBRATION – HAZARDOUS AREA
constant is out of specifica-	OXYMITTER 4000 WITH LOI
tion, a diagnostic alarm LED
will be flashing. The diagnos-	Refer to Figure 6-4for a view of the LOI menu
tic alarm will remain active	tree. To calibrate the Hazardous Area Oxymitter
until the purge cycle is over. If	4000 from the LOI, access the CALIBRATION/
the three pattern flash occurs	Start Calibration menu.
without a diagnostic alarm, the
calibration gases could be the	a. CALIBRATION/ Start Calibration
same or the calibration gas	This is the starting point for calibrations. The
was not turned on.
	LOI will instruct the user through this entire pro-
A flashing CAL LED indicates	cedure. You can select “Abort Calib” at any time
	to abort the calibration.
the calibration is done. (See
Section 8, TROUBLE-	1. The LOI displays the following:
SHOOTING, for an explana-
tion of the 2 pattern and 3	Apply Gas 1
pattern flashes).	Hit E when ready
7 Remove the second calibra-	The Oxymitter 4000 is ready to accept
tion gas and cap off the cali-	the first calibration gas. Apply the first
bration gas port.	calibration gas. (Electronics will abort
8 Push the CAL key; the CAL	the calibration if this step is not done
	within 30 minutes).
LED will be on solid as the
unit purges. (Default purge	2. Touch the Enter key to start the Gas 1
time is three minutes). When	flow. A timer is activated to allow the
the purge is complete, the	calibration gas adequate time to flow
CAL LED will turn off and the	(default time of five minutes). The LOI
Hazardous Area Oxymitter	displays:
4000 output unlocks from its	Flow Gas 1xxxxs
held value and begins to read	Read Gas 1xxxxs
the process O2.	Done Gas 1
If the calibration was valid, the	The display counts down the seconds
DIAGNOSTIC ALARMS LEDs will	remaining to flow Gas 1, then the time
indicate normal operation. If either	remaining for sensing the O2 concen-
new calibration value (slope or	tration of Gas 1. Done Gas 1 indicates
constant) is not within parameters,	completion.
the DIAGNOSTIC ALARMS LED
will indicate an alarm. (See Section	3. Remove the first calibration gas and
8, TROUBLESHOOTING, for alarm
	apply the second calibration gas.
codes). If the calibration was inva-
	(Electronics will abort the calibration
lid, the Hazardous Area Oxymitter
	if this step is not done within 30 min-
4000 will return to normal opera-
	utes). The LOI displays the following:
tion, as it was before a calibration
	Apply Gas 2
was initiated, and the parameters
	Hit E when ready
will not be updated.		9
(e) Place control loop in automatic.

Rosemount Analytical Inc. A Division of Emerson Process Management Maintenance and Service 9-5