Ib-106-340C Rev. 4.1; Figure 5-3. Normal Operation - Emerson Rosemount Analytical Oxymitter 4000 Instruction Manual

Hazardous Area Oxymitter 4000
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 % O
the cell.
DIAGNOSTIC
ALARMS
CALIBRATION
CALIBRATION RECOMMENDED
TEST
POINTS
INC INC
HIGH LOW
GAS GAS
DEC DEC
Rosemount Analytical Inc. A Division of Emerson Process Management
seen by
2
HEATER T/C
HEATER SW2
O2 CELL
J1
O2 CELL mV +
TP1
O2 CELL mv -
TP2
HEATER T/C +
TP3
HEATER T/C -
TP4
CAL
CAL LED
TEST GAS +
TP5
PROCESS -
TP6
% O2

Figure 5-3. Normal Operation

Oxygen levels, as seen on the
multimeter, are:
8.0% O
0.4% O
(b) CAL. The CAL key can:
1
2
3
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
manual for calibration and operation.
HEATER T/C
HEATER
O CELL
2
CALIBRATION
1 2 3
LIGHTING SEQUENCE DURING NORMAL OPERATION
Instruction Manual

IB-106-340C Rev. 4.1

July 2004
= 8.0 volts DC
2
= 0.4 volts DC
2
Initiate a calibration.
Sequence through calibration.
Abort the calibration.
NOTE
4 1 2 3 4
22220055
Startup and Operation with Keypad
5
5-3