Emerson 4000 manual Start Calib from the Calibra, Tion menu

Instruction Manual

IB-106-340 Rev. 3.0 December 2003

Oxymitter 4000

HEATER T/C

DIAGNOSTIC HEATER

ALARMS O2 CELL CALIBRATION

CALIBRATION RECOMMENDED

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

TEST
POINTS
INC	INC
HIGH	LOW
GAS	GAS
DEC	DEC

O2 CELL mV +

O2 CELL mv - HEATER T/C + HEATER T/C -

CAL

TEST GAS + PROCESS - % O2

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
22220067	“Start Calib” from the CALIBRA-
	TION menu.

Figure 9-1. Membrane Keypad

uled time interval (in hours). To configure the CAL INTRVL pa- rameter, refer to paragraph 7-8for HART/AMS or 6-3for 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.

(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 7-7for 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

9-2 Maintenance and Service Rosemount Analytical Inc. A Division of Emerson Process Management