Emerson Process Management OXYMITTER 4000 Power UP, Startup Display, Operating Display, Error

Hazardous Area Oxymitter 4000

Instruction Manual

IB-106-340C Rev. 4.1 July 2004

SECTION 5

STARTUP AND OPERATION

OF HAZARDOUS AREA OXYMITTER 4000

WITH MEMBRANE KEYPAD

5-1 POWER UP

a.Startup Display

When power is applied to the probe, the cell heater turns on. It takes approximately one half hour for the cell to heat to operating temperature. This condition is indicated by the top four LEDs (DIAGNOSTIC ALARMS) on the membrane keypad (Figure 5-1). Starting with the CALIBRATION LED, the LEDs light in ascending order until all four LEDs are on. At this point, all four turn off and the cycle starts again. This ramp cycle continues until the cell is up to operating temperature.

b. Operating Display

The ramp cycle turns into a cycle where the diagnostic LEDs light in sequence from the top to the bottom, one at a time. After the bottom LED turns on, the sequence starts again at the top with the HEATER T/C LED (Figure 5-1).

c.Error

If there is an error condition at startup, one

of the diagnostics LEDs will be blinking. Refer to Section 8 TROUBLESHOOTING, to determine the cause of the error. Clear

the error, cycle power, and the operating5 display should return.

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