Emerson OXYMITTER 4000 - Manual (Page 130)

Instruction Manual
IB-106-340 Rev. 3.0
December 2003
9-2 Maintenance and Service Rosemount Analytical Inc. A Division of Emerson Process Management
Oxymitter 4000
DIAGNOSTIC
ALARMS
TEST
POINTS
HEATER T/C
HEATER
O2 CELL
CALIBRATION
CALIBRATION RECOMMENDED
O2 CELL mV +
O2 CELL mv -
HEATER T/C +
HEATER T/C -
INC INC
DEC DEC
HIGH
GAS
LOW
GAS
CAL
TEST GAS +
PROCESS -
% O2
22220067
Figure 9-1. Membrane Keypad
uled time interval (in hours). To
configure the CAL INTRVL pa-
rameter, refer to paragraph 7-8 for
HART/AMS or 6-3 for LOI.
(c) If using an IMPS 4000, enter a
time interval via the IMPS 4000
keypad that will initiate an auto-
matic calibration at a scheduled
time interval (in hours). To set the
CalIntvX parameter of the
CHANGE PRESETS display
mode, refer to the IMPS 4000 In-
telligent Multiprobe Test Gas Se-
quencer Instruction Bulletin for
more information.
Once an automatic calibration is initi-
ated, by any of the methods previously
described, the Oxymitter 4000’s CALI-
BRATION RECOMMENDED alarm
signals an IMPS 4000 or SPS 4000 to
initiate a calibration. The sequencer
sends an “in cal” signal to the control
room so that any automatic control
loops can be placed in manual. Then,
the sequencer begins to sequence the
calibration gases.
2. Semi-Automatic Calibration. Semi-
automatic calibrations only require op-
erator initiation. However, the calibra-
tion gases must be permanently piped
to the Oxymitter 4000, an SPS 4000 or
IMPS 4000 must be installed to se-
quence the gases, and the Oxymitter
4000’s logic I/O must be set to mode 8
or 9 via HART/AMS so the sequencer
and Oxymitter 4000 can communicate.
Depending on your system setup, a
semi-automatic calibration can be initi-
ated by the following methods:
(a) Oxymitter 4000 with membrane
keypad. Press the CAL key on the
Oxymitter 4000 keypad.
(b) Oxymitter 4000 with LOI. Select
“Start Calib” from the CALIBRA-
TION menu.
(c) IMPS 4000. Use the IMPS 4000
keypad to change the InitCalX pa-
rameter of the CHANGE PRE-
SETS display mode from 0000 to
0001. Refer to the IMPS 4000 In-
telligent Multiprobe Test Gas Se-
quencer Instruction Bulletin for
more information.
(d) HART. Use the HART Communi-
cator to access the O2 CALI-
BRATE menu and perform the O2
CAL method. Refer to paragraph
7-7 for the complete calibration
procedure.
(e) AMS. Refer to AMS documenta-
tion for more information.
(f) Remote Contact. Initiate a calibra-
tion from a remote location via the
remote contact input connection
provided by an IMPS 4000 or SPS
4000. Refer to the documentation
available for the control system in
use for more information.
Once a semi-automatic calibration is
initiated, by any of the methods previ-
ously described, the Oxymitter 4000’s