GREEN INSTRUMENTS G3621A/P User manual

PART NUMBER.: 02155
G3621A/P
STACK GAS OXYGEN ANALYZING SYSTEM
WITH DIFFUSION PROBE

Version 2.2 –Oct 2020 2

G3621a/p Stack Gas Oxygen Analyzing System
3
Content
G3621A/P STACK GAS OXYGEN ANALYZING SYSTEM WITH DIFFUSION PROBE 1
1INTRODUCTION 4
1.1 ABOUT THIS MANUAL 4
1.2 INQUIRIES AND FEEDBACK 5
1.3 ABOUT THE SYSTEM 6
2SPECIFICATIONS 7
3SAFETY ASPECTS 8
4CONTROL AT DELIVERY 9
5INSTALLATION 10
5.1 WHERE TO INSTALL THE SYSTEM 10
5.2 DIFFUSION PROBE 13
5.3 ANALYZING BOARD 15
5.3.1 Mounting Board 15
5.3.2 Air Supply Connection 15
5.3.3 Test Gas Connection 16
5.3.4 Analyzer and Electrical Connection 16
6COMMISSIONING 21
6.1 INSTALLATIONAND SETUP PRE-CHECKS 21
6.2 START OF SYSTEM 21
7ROUTINE MAINTENANCE 22
7.1 CALIBRATION 22
7.2 AIR FLOW SYSTEM 22
7.3 DIFFUSION PROBE 23
7.4 SENSOR 23
8SPARE PARTS 25
TABLE OF FIGURES
FIGURE 5-1: INSTALLATION LAYOUT OF THE G3621A WITH WELDING TYPE PROBE 11
FIGURE 5-2: INSTALLATION LAYOUT OF THE G3621P WITH THREAD TYPE PROBE 12
FIGURE 5-3: DIFFUSION PROBE STANDARD –WELDING TYPE 13
FIGURE 5-4: DIFFUSION PROBE SHORT –WELDING TYPE 14
FIGURE 5-5: DIFFUSION PROBE STANDARD –THREAD TYPE 14
FIGURE 5-6: DIFFUSION PROBE SHORT –THREAD TYPE 15
FIGURE 5-7:ANALYZING BOARD WITH G36AOXYGEN ANALYZER MOUNTED ON BOARD 17
FIGURE 5-9:ANALYZING BOARD WITH CONNECTOR BOX FOR G36P OXYGEN ANALYZER 19
FIGURE 5-10: PIPINGAND CONNECTION DIAGRAM OF THE G3621P20
FIGURE 7-1: MAINTENANCE OF THE DIFFUSION PROBE 23

Introduction
Version 2.2 –Oct 2020 4
1Introduction
1.1 About this Manual
The G3621a/p Stack Gas Oxygen Analyzing System, hereafter named an SGOA System,
consists of an oxygen analyzer, an analyzing board, and a diffusion probe.
This manual contains data and instructions for the installation, operation, and mainte-
nance of the analyzing board and the SGOA System as a whole.
The instructions for installation, operation, and maintenance of the analyzers are provid-
ed in separate manuals:
The G36a Oxygen Analyzer manual (p#01245) –IP67 box
The G36p Oxygen Analyzer manual (p#01381) –panel mounted
Therefore, for the installation, operation, and maintenance of an entire SGOA System,
this manual and the concerned oxygen analyzer manual must be read carefully in their
entirety.
The instructions have been made in general terms and do not take into consideration the
existing equipment and its installation. As such, the manual is designed for the standard
G3621a/pSGOA System with Diffusion Probe.
This manual does not describe all possible situations but only the most common and
known situations and cannot replace the necessary instruction and education of the per-
sonnel.
Attention
Before operation read all instructions and warnings within this manual and associated
documentation. Improper use may cause personal injury and/or damage of equipment
and may void the warranty.
Green Instruments A/S disclaims any responsibility for damage and/or injury caused
by improper installation, use or maintenance of the equipment.
Should situations not described in this manual occur which cannot be solved in accord-
ance with normal known practice and good workmanship, the operator should contact
Green Instruments A/S for instructions.

G3621a/p Stack Gas Oxygen Analyzing System
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This manual does not claim to cover all details or variations in the equipment or to
provide for every possible contingency that may arise during installation, operation, or
maintenance.
Green Instruments A/S reserves the right to minor alterations and improvements owing to
developments without being obliged to enter the corresponding changes in this manual.
Green Instruments A/S reserves the copyright of the manual. Without prior written per-
mission of Green Instruments A/S, the manual may not be copied and given to unauthor-
ized people.
1.2 Inquiries and Feedback
All claims and inquiries for spares shall be addressed to Green Instruments A/S or our
distributors.
In all correspondence or when ordering spare parts, please carefully state the equipment
type and serial number, which you can find on the label on the back of the G36p Oxygen
Analyzer or on the right side of the G36a Oxygen Analyzer.
Green Instruments A/S appreciates all feedback and suggestions for improvement of this
manual. If you have any questions or find any errors in the manual, you are welcome to
contact us at the following address:
Green Instruments A/S
Erhvervsparken 29
DK-9700 Brønderslev
Denmark
Phone:
Fax:
[phone]
[phone]
E-mail:
Web:
[e-mail]
HUwww.greeninstruments.com

Introduction
Version 2.2 –Oct 2020 6
1.3 About the System
The G3621a/p SGOA System is designed to measure the content of oxygen in stack gas.
The compact design provides a wide range of configuration possibilities, outstanding per-
formance, reliable and in situ real-time monitoring.
The system consists of the following main elements:
Diffusion probe complete with filter, gas tube, sensor, and housing.
Umbilical cord including cables and tubing.
Analyzing board, air supply filter regulator, test gas inlet, and a flow meter.
Analyzer (G36a or G36p panel mounted).
The system has M.E.D EC type examination by Det Norske Veritas, Lloyd’s Register
Type Approval Certificate, and Det Norske Veritas TypeApproval Certificate.

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2Specifications
Gas Connection
Test Gas Inlet
Max. 1 bar –quick coupling for 6 mm OD hose
Air Supply Inlet
Max. 10 bar –1/8” BSP connection
Air Supply Quality
Instrument air according to ISO 8573-1 Class 3.3.3
Analyzing Board
Ambient Temperature
0oC…55oC
G3621a Analyzing Board Dimension
600 × 290 × 138 mm (H × W × D)
Weight –Incl. G36a O2 Analyzer
Approx. 6.0 kg without packaging
G3621p Analyzing Board Dimension
600 × 290 × 95 mm (H × W × D)
Weight –Incl. G36p O2 Analyzer
Approx. 4.0 kg without packaging
Diffusion Probe
Sensor Technology
Heated zirconia type sensor
Measurement Range
0.0…21.0%
Sample Temperature
0oC…500oC
Probe Insert Length
208-338 mm for duct diameters 235-2800 mm
Welding Socket size OD:
70.0 mm L: 200 mm; or Thread size: 1½” BSP
Air Supply Connection
6/4 mm tubing
Calibration Air Flow
Approx. 0.5…1.0 l/m
Diffusion Probe Dimension –Short
285 x 180 x 475 mm (H x W x D)
Diffusion Probe Dimension –Long
285 x 180 x 600 mm (H x W x D)
Weight Including House
Approx. 6.0 kg without packaging
Umbilical cord
Cord Length
3.0 m
Tubing
In 28 mm nylon conduit
Analyzer
See Details In Chapter 2 In The Analyzer Manual.
Optional Equipment
Remote digital display with alarm relays, digital flow switch, and visualization, recording, and
data logging.
Specifications are subject to change without notice.

Safety Aspects
Version 2.2 –Oct 2020 8
3Safety Aspects
Hot Sensor/Probe!
The sensor and the probe are hot and can cause severe burning of personnel if not han-
dled with care.
Installation and Operation!
The installation and operation of the G3621a/p SGOA System and associated equipment
must be carried out by skilled personnel.
Green Instruments A/S does not take any responsibility for the operation of the system
and associated equipment whatsoever. The successful and safe operation of this equip-
ment is dependent on proper handling, installation, operation, and maintenance.
Recycling!
Do not dispose any part of the equipment with regular refuse. Disposal should be in ac-
cordance with the requirements of the current statutory regulations.

G3621a/p Stack Gas Oxygen Analyzing System
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4Control at Delivery
When you receive the G3621a/p SGOA System, please inspect and confirm that the re-
ceived scope of supply is in accordance with the packing list and not damaged.
Any discrepancy should be reported to the supplier immediately. If any of the received
parts are damaged, the shipping company should be informed, and new parts should be
made available before completing the installation.

Installation
Version 2.2 –Oct 2020 10
5Installation
Read this chapter in its entirety before installing the system.
5.1 Where to Install the System
Satisfactory operation, faultless functions, and minimal maintenance of the analyzing
board, are achieved by paying attention to the following points:
The analyzing board and the analyzer shall be installed in a clean area away from dust,
oil mist, and moisture. The elements of the system should be installed at viewing level
so that it is easily accessible in connection to operation and service.
The probe shall be installed in a suitable location that represents the gas to be tested
and where there is a laminar flow.
The panel mounted analyzer G36p can be installed up to 6 m from the analyzing
board.
As standard scope of supply, the analyzing board can be installed up to 3 m from the
diffusion probe.
It is recommended to place the diffusion probe as illustrated in Figure 5-1 and
Figure 5-2 below. If you find it difficult estimating where to install the diffusion
probe, please contact Green Instruments A/S for more instructions.