Honeywell WATCHDOG III User Manual

CONTENTS
1 SAFETY
1.1 Please read and keep in a safe place
Please read through these instructions carefully before
installing or operating. Following the installation, pass the instruc-
tions on to the operator. This unit must be installed and commis-
sioned in accordance with the regulations and standards in force.
These instructions can also be found at www.docuthek.com.
1.2 Explanation of symbols
1
,
2
,
3
,
a
,
b
,
c
= Action
➔ = Instruction
1.3 Liability
We will not be held liable for damage resulting from non-obser-
vance of the instructions and non-compliant use.
1.4 Safety instructions
Information that is relevant for safety is indicated in the instructions
as follows:
DANGER
Indicates potentially fatal situations.
WARNING
Indicates possible danger to life and limb.
CAUTION
Indicates possible material damage.
All interventions may only be carried out by qualified gas techni-
cians. Electrical interventions may only be carried out by qualified
electricians.
1.5 Conversion, spare parts
All technical changes are prohibited. Only use OEM spare parts.
EN – www.docuthek.com
“WATCHDOG III”
Flare Stack Monitoring System
1 Safety .......................................1
2 Checking the usage ............................2
3 Installation ...................................2
4 Commissioning................................4
5 Assistance in the event of malfunction ..............6
6 Technical data ................................6
7 Certification...................................8
8 Disposal .....................................8
OPERATING INSTRUCTIONS
· Edition 01.24 · 32-00034-03 · EN

Honeywell WATCHDOG III Specifications

General

Temperature Accuracy	±0.5 °C (±0.9 °F)
Measurement Parameters	Temperature, Humidity
Humidity Range	0 to 100 %RH
Display	LCD
Communication Interface	RS-485

Summary

1 Safety Precautions

1.1 Please Read and Keep Safe

General safety instruction before installation and operation.

1.2 Explanation of Symbols

Defines symbols used for actions and instructions in the manual.

1.3 Liability Disclaimer

States no liability for damage due to non-compliance.

1.4 Safety Indication Methods

Explains how DANGER, WARNING, and CAUTION are indicated.

1.5 Conversion and Spare Parts Policy

Prohibits technical changes and mandates OEM parts.

2 System Overview and Components

2.1 Relay R1 Operation and Wiring

Configuration and function of the R1 flame relay.

2.2 Relay R2 Operation and Wiring

Configuration and function of the R2 alarm relay.

2.3 P222 Terminal Layout

Diagram illustrating terminal connections on the P222 processor.

2.4 Viewing Head Connection Point

Indicates the connection point for the viewing head.

3 Installation Procedures

3.1 Power Requirements Specification

Details the AC and DC power input requirements for the P222.

3.2 Signal Processor Wiring Guide

Instructions for connecting power and signals to the P222.

3.3 S256BE Viewing Head Connection

Steps for physically attaching the viewing head connector.

3.4 Viewing Head Mounting Location

Guidelines for choosing an optimal installation site for the viewing head.

3.5 Viewing Head Aiming Technique

Procedures for aiming the viewing head for accurate flame detection.

4 System Commissioning

4.1 Self-Check Functionality

Describes the system's self-test and error indication.

4.2 P222 Control Panel Features

Overview of all LEDs, displays, and push buttons on the processor.

4.3 P222 Configuration Settings

Guides for setting R1 and R2 relay delays.

4.3.3 UV Gain Adjustment

Steps for manually setting the UV signal gain.

4.3.4 Analog Output Gain Calibration

Using Gain Set for adjusting the 4-20mA output.

4.3.5 Analog Output Range Selection

Procedure to switch between 0-20mA and 4-20mA outputs.

4.3.6 Viewing Head Temperature Monitoring

How to check viewing head temperature and warnings.

4.4 Modbus Communication Setup

Configuration of Modbus RTU settings like baud rate and address.

4.5 Registers Map

List of internal registers accessible via Modbus.

4.5.1 Programming UV Gain Flow Chart

Visual guide for programming the UV gain parameter.

4.5.2 Programming Relay Settings Flow Chart

Visual guide for programming relay settings and checking temperature.

5 Troubleshooting

5.1 P222 Display Shows S256

Troubleshooting when P222 displays 'S256'.

5.2 P222 Display Shows Loop

Troubleshooting when P222 displays 'loop'.

5.3 Flame Signal Lost

Diagnosing loss of flame signal, likely due to misalignment.

6 Technical Data

6.1 Electrical Input to Processor

Specifications for AC and DC power input.

6.2 Environmental Specifications

Ambient temperature ranges for processor and viewing head.

6.3 Outputs

Details of relay contacts and analog output specifications.

6.4 Inputs

Specifications for manual clear and channel select inputs.

6.5 Serial Communication

Supported serial communication protocols and baud rates.

6.6 Viewing Head Specifications

Details on viewing distance, field of view, and cable requirements.

6.7 Dimensions

Physical dimensions of the viewing head and mounting yoke.

7 Certification

7.1 CSA Compliance

List of CSA standards the product complies with.

8 Disposal Instructions

WEEE Directive Compliance

Guidelines for disposing of electronic components according to WEEE.