Alarms O2 T/C Reversed, Faulty PC Board | Emerson 4000 instruction

Oxymitter 4000

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

CALIBRATION RECOMMENDED

Instruction Manual

IB-106-340 Rev. 3.0

December 2003

c. Fault 3, Reversed Thermocouple Wiring or

Faulty PC Board

Figure 8-5shows the electronic assembly

for an Oxymitter 4000 with a membrane

keypad (upper view) and an Oxymitter 4000

with an LOI (lower view). The upper view

also shows J1 and test points TP1 through

TP6, located on the microprocessor board,

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	J1
TP1
TP2
TP3
TP4	RED YEL GRN ORG
	RED YEL GRN ORG

TP5

TP6

below the membrane keypad or the LOI

module.

Membrane Keypad. When Fault 3 is de-

tected, the HEATER T/C LED flashes three

times, pauses for three seconds, and re-

peats.

1. Using a multimeter, measure TP3+ to

TP4-.

2. If the reading is negative, the thermo-

couple wiring is reversed.

KEYPAD

Alarms

O2 T/C Reversed

LOI

37260021

Figure 8-5. Fault 3, Reversed Thermocouple

3.	Check red and yellow wires in the J1
	connector for the proper placement.
4.	If the wiring is correct, the fault is in the
	PC board. See paragraph 9-4d,Elec-
	tronic Assembly Replacement.

LOI. When Fault 3 is detected, the LOI dis- plays the “O2 T/C Reversed” message.

1.Remove power. Unscrew and remove the LOI module from the electronic as- sembly.

2.Reconnect power to the Oxymitter 4000.

3.Perform the diagnostic steps 1 through 4 shown for the membrane keypad.

Rosemount Analytical Inc. A Division of Emerson Process Management

Troubleshooting 8-7

4000 specifications

The Emerson 4000 is a state-of-the-art automation platform designed to enhance industrial processes and improve operational efficiency. This advanced system is recognized for its unparalleled reliability and flexibility, making it suitable for various industries such as oil and gas, chemicals, pharmaceuticals, and power generation.

One of the standout features of the Emerson 4000 is its robust architecture that comprises distributed control systems (DCS) and a comprehensive suite of software applications. This integration allows for real-time monitoring and control of complex processes, ensuring that operators have access to crucial data for informed decision-making. The system supports a wide range of field devices and protocols, facilitating seamless connectivity across various platforms.

The Emerson 4000 employs innovative technologies that elevate its performance. It incorporates advanced analytics and machine learning capabilities, which enable predictive maintenance and reduce downtime. By analyzing historical data and identifying patterns, the system can forecast potential failures, allowing operators to address issues before they escalate. This leads to increased uptime and significant cost savings.

Another key characteristic of the Emerson 4000 is its user-friendly interface. The intuitive design ensures that operators can navigate the system with ease, reducing training time and enhancing productivity. The customizable dashboards provide real-time insights and facilitate quick access to critical information, allowing teams to respond to changes in the process swiftly.

Security is also a cornerstone of the Emerson 4000 platform. The system includes multiple layers of cybersecurity measures to safeguard sensitive data and maintain the integrity of operations. This is crucial in today’s environment, where cyber threats are a significant concern for industrial facilities.

In addition, the Emerson 4000 excels in scalability. It can be easily expanded to accommodate the growing needs of a business without compromising performance. Whether an organization is looking to integrate additional processes or expand its operations geographically, the Emerson 4000 is designed to adapt and grow alongside the business.

Overall, the Emerson 4000 stands out as a powerful tool for industrial automation. Its combination of reliability, advanced technology, user-friendliness, security, and scalability makes it an ideal choice for organizations seeking to optimize their operations and drive efficiency in an increasingly competitive landscape.

Emerson 4000 Alarms O2 T/C Reversed, Fault 3, Reversed Thermocouple Wiring or, Faulty PC Board

Models: 4000