Emerson Process Management IM-106-340 Startup and Operation Oxymitter 4000 with Membrane Keypad

Instruction Manual

IM-106-340, Rev. 4.0 May 2006

Oxymitter 4000

Section 5 Startup and Operation of

Oxymitter 4000 with Membrane

Keypad

	Power Up	page 5-1
	Operation	page 5-2
POWER UP	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.

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).

Figure 5-1. Startup and Normal Operation

	HEATER T/C
DIAGNOSTIC	HEATER	SW2
ALARMS	O2 CELL	ON
	CALIBRATION

CALIBRATION RECOMMENDED

HEATER T/C

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)

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