Oxymitter 4000

Instruction Manual

IB-106-340 Rev. 3.0 December 2003

SECTION 5

STARTUP AND OPERATION

OF OXYMITTER 4000 WITH MEMBRANE KEYPAD

5-1 POWER UP

c.

Error

a.

Startup Display

 

If there is an error condition at startup, one

 

of the diagnostics LEDs will be blinking.

 

 

 

 

When power is applied to the probe, the cell

 

Refer Section 7, TROUBLESHOOTING, to

 

heater turns on. It takes approximately one

 

determine the cause of the error. Clear the

 

half hour for the cell to heat to operating

 

error, cycle power, and the operating dis-

 

temperature. This condition is indicated by

 

play should return.

 

the top four LEDs (DIAGNOSTIC ALARMS)

d.

Keypad

 

on the membrane keypad (Figure 5-1).

 

Starting with the CALIBRATION LED, the

 

The five membrane keys on the membrane

 

LEDs light in ascending order until all four

 

 

 

keypad are only used during calibration to

 

LEDs are on. At this point, all four turn off

 

 

 

adjust the high and low gas and to initiate

 

and the cycle starts again. This ramp cycle

 

 

 

the calibration sequence (Figure 5-2).

 

continues until the cell is up to operating

 

 

temperature.

 

 

b.

5-2

GENERAL OPERATION
Operating Display

a.

Overview

 

The ramp cycle turns into a cycle where the

 

 

 

 

diagnostic LEDs light in sequence from the

 

Ensure the Oxymitter 4000 is at normal op-

 

top to the bottom, one at a time. After the

 

eration. The diagnostic LEDs will display the

 

bottom LED turns on, the sequence starts

 

operating cycle. All other LEDs should be

 

again at the top with the HEATER T/C LED.

 

off.

HEATER T/C

 

HEATER T/C

 

DIAGNOSTIC

HEATER

SW2

ALARMS

O2 CELL

ON

 

 

CALIBRATION

 

CALIBRATION RECOMMENDED

HEATER

O2 CELL

CALIBRATION

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

TP1 TP2 TP3 TP4

TP5 TP6

J1 RED YEL GRN ORG

1

2

3

4

1

2

3

4

LIGHTING SEQUENCE DURING WARM-UP

(STARTUP DISPLAY)

HEATER T/C

HEATER

O2 CELL

CALIBRATION

1

2

3

4

1

2

3

4

LIGHTING SEQUENCE DURING NORMAL OPERATION

(OPERATING DISPLAY)

22220056

Figure 5-1. Startup and Normal Operation

Rosemount Analytical Inc. A Division of Emerson Process Management

Startup and Operation with Keypad 5-1