Emerson Process Management OXYMITTER 4000 instruction manual Normal Operation

Hazardous Area Oxymitter 4000

Instruction Manual

IB-106-340C Rev. 4.1 July 2004

4.CAL LED. The CAL LED is on steady or flashing during calibration. Further information is available in Section 9,

MAINTENANCE AND SERVICE.

5.Keys.

(a)INC and DEC. The INC and DEC keys are used to set the values of the calibration gases. Attach a multimeter across TP5 and TP6. The calibration and process gases can now be monitored. Pressing the INC or DEC once will cause the output to switch from the proc- ess gas to the calibration gas. Pressing INC or DEC a second time will increase or decrease the calibration gas parameter. If the keys have been inactive for one minute, the output reverts to the process gas. When a calibration has been initiated, the value at TP5 and TP6 is the % O2 seen by the cell.

Oxygen levels, as seen on the multimeter, are:

8.0% O2 = 8.0 volts DC

0.4% O2 = 0.4 volts DC

(b) CAL. The CAL key can:
1	Initiate a calibration.
2	Sequence through calibration.
3	Abort the calibration.
	NOTE
Refer to Section 9, MAINTENANCE AND
SERVICE, for calibration instructions.
b. Model 751 Remote Powered Loop
LCD Display (Optional)
Refer to Remote Powered Loop LCD		5
manual for calibration and operation.

HEATER T/C

DIAGNOSTIC HEATER

ALARMS O2 CELL CALIBRATION

CALIBRATION RECOMMENDED

SW2

ON

HEATER T/C

HEATER

O2 CELL

CALIBRATION

TEST POINTS

INC INC

O2 CELL mV +

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

CAL

TP1	J1
TP2
TP3
TP4	RED YEL GRN ORG

1 2 3 4 1 2 3 4

LIGHTING SEQUENCE DURING NORMAL OPERATION

HIGH LOW

GAS GAS

DEC DEC

TEST GAS + PROCESS - % O2

CAL LED

TP5

TP6

22220055

Figure 5-3. Normal Operation

Rosemount Analytical Inc. A Division of Emerson Process Management Startup and Operation with Keypad 5-3