Environnement AF22e User manual

TECHNICAL MANUAL
UV FLUORESCENT
SULFUR DIOXIDE ANALYZER
AF22e
- MARCH 2017 -
111 bd Robespierre, 78300 POISSY – TEL. [phone] – FAX [phone]
http://www.environnement-sa.com
GENERAL
CHARACTERISTICS
PRINCIPLE OF
OPERATION
OPERATING
INSTRUCTIONS
PREVENTIVE
MAINTENANCE
CORRECTIVE
MAINTENANCE

EnvironnementS.A AF22e Duplication prohibited
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WARNING
The information in this documentation is subject to change without notice.
Environnement S.A all rights reserved.
This document does not represent a commitment under part of Environnement S.A

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Warranty
Defects that fall under warranty
The seller shall undertake to remedy any operational malfunction resulting from a manufactured or material defect
within the limits of the provision below.
The seller shall not be liable in the case of a defect caused either by materials supplied by the buyer or by a design
imposed by the buyer.
Any warranty is also invalid in the case of damage resulting from normal wear and tear, accident, disaster, misuse,
fault or negligence of or by Buyer, causes external to the Products such as, but not limited to, unauthorized repairs
or part replacement, electrical power surges, improper storage of the Product, use of the Product in a manner for
which it was not designed.
Duration and starting point of the warranty
Unless otherwise stipulated, the warranty period shall have a duration of twelve months from the date of delivery
within the meaning of article 6 paragraph 2 of the «Environnement S.A: 2013 INTERNATIONAL GENERAL TERMS
AND CONDITIONS OF SALES», even if the shipment or assembly is postponed for any reason outside the seller's
control.
Unless agreed upon by both parties, the repair, modification or replacement of parts during the warranty period will
not extend or renew the original equipment warranty period.
Buyer's obligation
In order to file a claim under warranty, the buyer must notify the seller immediately in writing of any defect in the
equipment and supply evidence in proof thereof. The buyer must provide the seller with the opportunity to observe
and remedy the said defects. In addition, the buyer must not carry out any repairs or have repairs made by a third
party without the written agreement of the seller.
The buyer is required to check the equipment as soon as possible upon receipt and acceptance and no later than
eight days following receipt. Failing to do so might invalidate any claims made later regarding a declared defect.
Any installation, maintenance, repair, service of the product performed by any person or entity other than seller
without seller's prior written approval, or any use of replacement parts not supplied by seller, shall immediately void
and cancel all warranties with respect to the affected product.
Exercising the warranty
Once notified of a defect, the seller shall be responsible for remedying the defect at its own expense. The seller,
however, reserves the right to modify the mechanisms of the equipment as needed to comply with its obligations.
The work to satisfy the warranty obligation shall be carried out, principally, in the seller's workshop after the buyer
has returned the equipment or the defective parts to the seller for the purposes of repair or replacement, whichever
the seller deems best.
However, if the nature of the equipment is such that the repair has to be carried out at the location where it was
installed, the seller shall only be responsible for the on-site labor costs involved in direct service of the analyzer
itself. The buyer is responsible for the cost of any additional measures needed to provide unrestricted access.
The cost of transport of the equipment or the defective parts, as well as the return of the repaired or replaced
equipment or part, shall be borne by the buyer. In the case of on-site repair, the buyer shall be responsible for any
travelling and accommodation expenses of the seller's representative.
Defective parts replaced free of charge, under warranty, must be returned to the seller and shall become its property
once again.

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SUMMARY
CHAPTER 1. GENERAL – CHARACTERISTICS
1.1. GENERAL 1–3
1.2. CHARACTERISTICS 1–9
CHAPTER 2. PRINCIPLE OF OPERATION
2.1 THEORETICAL BASIS 2–3
2.2 MEASUREMENT PRINCIPLE 2–6
2.3 GENERAL PRINCIPLE DIAGRAMS 2–7
2.4 SAMPLING AND ANALYSIS 2–9
2.5 SIMPLIFIED CALCULATION DESCRIPTION 2–11
2.6 PROGRAMMING THE RESPONSE TIME 2–12
2.7 ELECTRONIC ARCHITECTURE 2–13
2.8 NETWORK LINK AND USB PORTS 2–14
CHAPTER 3. OPERATING INSTRUCTIONS
3.1. INITIAL STARTUP 3–3
3.2. PROGRAMMING THE AF22E 3–9
3.3. BROWSING ERGONOMY 3–13
3.4. ANALYZER FUNCTION DESCRIPTION 3–18
3.5. CALIBRATION 3–38

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CHAPTER 4. PREVENTIVE MAINTENANCE
4.1 SAFETY INSTRUCTIONS 4–3
4.2 MAINTENANCE CALENDAR 4–4
4.3 MAINTENANCE OPERATION SHEETS 4–4
4.4 KITS AND SPARE PARTS SET FOR AF22e MAINTENANCE 4–17
CHAPTER 5. CORRECTIVE MAINTENANCE

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List of Figures
Figure 1–1 – ENVIRONNEMENT S.A AF22e (with screen) 1–2
Figure 1–2 – ENVIRONNEMENT S.A AF22e(without screen) 1–2
Figure 1–3 – Color screen fitted with touch-screen 1–3
Figure 1–4 – Rear panel 1–5
Figure 1–5 – AF22e internal view 1–7
Figure 1–6 – Links between units 1–10
Figure 1–7 – AF22e dimensions (in mm) 1–11
Figure 2–1 – Diagram showing molecule energy levels 2–5
Figure 2–2 – General principle diagram of standard AF22e 2–7
Figure 2–3 – General principle diagram of AF22e with permeation bench option 2–8
Figure 2–4 – Hydrocarbon molecule filtration 2–9
Figure 2–5 – Electronic architecture 2–14
Figure 3–1 – Fluid and electrical connections 3–3
Figure 3–2 – Installation of the sample gas inlet 3–4
Figure 3–3 – Example of a pressurized gas connection 3–39
Figure 3–4 – Typical calibration device diagram 3–44
Figure 4–1 – Sample inlet dust filter replacement 4–5
Figure 4–2 – Internal zero filter replacement 4–8
Figure 4–3 – KNF pump head dismantling 4–10
Figure 4–4 – Diaphragm replacement 4–11
Figure 4–5 – Valves and O-rings replacement 4–12
Figure 4–6 – Pump reassembly 4–13
Figure 4–7 – UV source assembly dismantling 4–14
Figure 4–8 – UV lamp change 4–15
Figure 4–9 – UV source reassembly 4–16
Figure 5–1 – Interconnection board diagram 5–11
Figure 5–2 – Controller board diagram (above view) 5–12
Figure 5–3 – Power supply board diagram 5–13
Figure 5–4 – Measurement board diagram 5–15
Figure 5–5 – Photodiode board diagram (above view) 5–16
Figure 5–6 – PM preamplifier board diagram 5–17
Figure 5–7 – UV lamp power board diagram 5–18
Figure 5–8 – ARM20 board 5–19

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List of Tables
Table 5–1 – List of faults and corrective actions 5–4
Table 5–2 – Interconnection board configuration and LEDs description 5–10
Table 5–3 – Controller board configuration 5–12
Table 5–4 – Power supply board 5–13
Table 5–5 – Measurement board test points, LEDs description and connections 5–14
Table 5–6 – Photodiode board configuration 5–16
Table 5–7 – PM preamplifier board test points, LEDs description, connections and adjustments 5–17
Table 5–8 – UV lamp power board test points, LEDs description and connections 5–18
Table 5–9 – ARM20 board description 5–19

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INDEX OF PAGES
Page Date
0-1 03.2017
0-2 04.2016
0-3 04.2016
0-4 04.2016
0-5 04.2016
0-6 06.2016
0-7 06.2016
0-8 03.2017
1-1 04.2016
1-2 04.2016
1-3 06.2016
1-4 03.2017
1-5 03.2017
1-6 03.2017
1-7 03.2017
1-8 03.2017
1-9 03.2017
1-10 03.2017
1-11 04.2016
1-12 04.2016
2-1 04.2016
2-2 04.2016
2-3 04.2016
2-4 04.2016
2-5 04.2016
2-6 04.2016
2-7 04.2016
2-8 04.2016
2-9 04.2016
2-10 04.2016
2-11 04.2016
2-12 04.2016
2-13 04.2016
2-14 04.2016
3-1 04.2016
3-2 04.2016
3-3 03.2017
3-4 04.2016
3-5 04.2016
3-6 04.2016
3-7 04.2016
3-8 04.2016
3-9 04.2016
3-10 04.2016
3-11 04.2016
3-12 04.2016
3-13 04.2016
3-14 04.2016
Page Date
3-15 04.2016
3-16 06.2016
3-17 06.2016
3-18 06.2016
3-19 04.2016
3-20 04.2016
3-21 04.2016
3-22 04.2016
3-23 04.2016
3-24 04.2016
3-25 04.2016
3-26 04.2016
3-27 04.2016
3-28 04.2016
3-29 04.2016
3-30 04.2016
3-31 04.2016
3-32 04.2016
3-33 04.2016
3-34 04.2016
3-35 04.2016
3-36 04.2016
3-37 04.2016
3-38 06.2016
3-39 04.2016
3-40 06.2016
3-41 04.2016
3-42 04.2016
3-43 04.2016
3-44 04.2016
3-45 04.2016
3-46 04.2016
4-1 04.2016
4-2 04.2016
4-3 04.2016
4-4 04.2016
4-5 04.2016
4-6 04.2016
4-7 06.2016
4-8 06.2016
4-9 04.2016
4-10 04.2016
4-11 04.2016
4-12 04.2016
4-13 04.2016
4-14 06.2016
4-15 04.2016
4-16 06.2016
4-17 04.2016
4-18 04.2016
Page Date
5-1 06.2016
5-2 04.2016
5-3 04.2016
5-4 04.2016
5-5 04.2016
5-6 04.2016
5-7 04.2016
5-8 04.2016
5-9 04.2016
5-10 06.2016
5-11 06.2016
5-12 06.2016
5-13 06.2016
5-14 06.2016
5-15 06.2016
5-16 06.2016
5-17 06.2016
5-18 06.2016
5-19 06.2016
5-20 06.2016

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CHAPTER 1
GENERAL - CHARACTERISTICS
1.1. GENERAL 1–3
1.1.1. INTRODUCTION 1–3
1.1.2. DESCRIPTION 1–3
1.1.2.1. Front panel 1–3
1.1.2.2. Rear panel 1–4
1.1.2.3. Internal view 1–6
1.1.3. VARIOUS OPERATING MODES 1–8
1.1.3.1. Standard 1–8
1.1.3.2. Option 1–8
1.1.4. ASSOCIATED EQUIPMENT (OPTIONAL) 1–8
1.2. CHARACTERISTICS 1–9
1.2.1. TECHNICAL CHARACTERISTICS 1–9
1.2.2. STORAGE CHARACTERISTICS 1–10
1.2.3. INSTALLATION CHARACTERISTICS 1–10
1.2.3.1. Links between units 1–10
1.2.3.2. Dimensions and weight 1–10
1.2.3.3. Handling and storage 1–10
1.2.4. STORAGE 1–10
Figure 1–1 – ENVIRONNEMENT S.A AF22e (with screen) 1–2
Figure 1–2 – ENVIRONNEMENT S.A AF22e(without screen) 1–2
Figure 1–3 – Color screen fitted with touch-screen 1–3
Figure 1–4 – Rear panel 1–5
Figure 1–5 – AF22e internal view 1–7
Figure 1–6 – Links between units 1–10
Figure 1–7 – AF22e dimensions (in mm) 1–11

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1. GENERAL - CHARACTERISTICS
Figure 1–1 – Environnement S.A AF22e (with screen).
Figure 1–2 – Environnement S.A AF22e(without screen).

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1.1. GENERAL
1.1.1. INTRODUCTION
The AF22e is a continuous sulfur dioxide analyzer (with a detection limit of 0.4 ppb).
Its detection is based on ultraviolet fluorescence principle.
With the incorporation of recent optical and electronic technologies, the analyzer offers many
advantages while requiring only limited maintenance.
The sample is taken usinga Teflon tube (6 mm external diameter) connected to the analyzer rear panel.
The sample is aspirated by an internal pump.
The measurement is displayed on a color display equipped with a touch screen located on the front
panel.
This analyzer is also available in AF22e(without screen) version.
1.1.2. DESCRIPTION
1.1.2.1. Front panel
The front panel includes the following:
General switch.
Backlit color TFT LCD (Thin Film Transistor Liquid Crystal Display):
Resolution of 800 x 480 (pixels), 7” screen,
The display provides the measurement values and other system parameters, as desired.
Capacitive touch-screen projected on glass.
Figure 1–3 – Color screen fitted with touch-screen

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1.1.2.3. Rear panel
All of the AF22e electrical connectors and gas inlets/outlets are located on the rear panel. Refer to
Figure 1–4.
Gas inlets/outlets for standard analyzers (right-hand side):
The inlet for the sample to be analyzed (1) is composed of 4 mm (I.D.) and 6 mm (O.D.) Teflon tube
fittings, attached to the dust filter holder. The dust filter holder is equipped with a Teflon filtering
diaphragm.
The pump outlet (2), to exhaust the analyzed sample, consists of 4 mm (I.D.) and 6 mm (O.D.)
Teflon fitting.
A fan (9).
The span gas inlet (3) is composed of 4 mm (I.D.) and 6 mm (O.D.) Teflon fitting to connect an
external span gas at atmospheric pressure.
The following internal option is also located on the rear panel:
The “zero” optional inlet (4) is composed of 4 mm (I.D.) and 6 mm (O.D.) pneumatic tube fitting. It is
used to connect an external, SO2-free, “zero air” supply at atmospheric pressure.
Gas inlets/outlets for analyzers with permeation bench option (right-hand side):
The inlet for the sample to be analyzed (1) is composed of 4 mm (I.D.) and 6 mm (O.D.) Teflon tube
fittings, attached to the dust filter holder. The dust filter holder is equipped with a Teflon filtering
diaphragm.
The pump outlet (2), to exhaust the analyzed sample, consists of 4 mm (I.D.) and 6 mm (O.D.)
Teflon fitting.
A fan (9).
The span gas inlet (3) is stopped up.
The zero air inlet for permeation bench (12).
The following internal options are also located on the rear panel:
The “zero” optional inlet (4) is composed of 4 mm (I.D.) and 6 mm (O.D.) pneumatic tube fitting. It is
used to connect an external, SO2-free, “zero air” supply at atmospheric pressure.
Electrical equipment and connections for all analyzers (left-hand side):
One main power supply block consisting of a three-contact socket (5) to connect a standard power
cable and the general fuse (6): 3.15 A/250 V.
One Ethernet output (7) and two USB ports (8).
One 4-point BL connection to connect the optional solenoid valve for external calibration (10),
One connection for the 24 V power supply for ESTEL board option (11).

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(1) sample inlet, (2) pump outlet, (3) span inlet, (4) inlet for external zero air generator, (5) three-contact
socket for main power supply, (6) general fuse, (7) Ethernet output, (8) two USB ports, (9) fan, (10)
duplicate the zero and span solenoid valves for optional solenoid valve of external calibration, (11) 24
V power supply for ESTEL board option, (12) permeation bench inlet (optional), (13) not used.
Figure 1–4 – Rear panel

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1.1.2.5. Internal view
The internal components of the analyzer are accessed by simply unscrewing the single knurled screw
at the rear panel and sliding the upper cover.
The internal elements include (refer to Figure 1–5):
Sample inlet dust filter mounted on the rear panel (1),
Measurement module (2),
Pump (3),
ARM20 board (4),
Interconnection board (5),
24 VDC power supply unit (6), with automatic universal input voltage 100~250 Vac 50/60Hz.
Measurement board (7) that uses the + 24 V, + 12 V, + 5 V, +3.3 V power supplies. It supports
analog signal acquisition and digital signal processing.
Two pressure sensor boards (8),
UV lamp supply board (9),
Solenoid valve-filter assembly (13),
An optional permeation bench block (not shown).
After passing through the dust filter (1), the sample to be analyzed passes through an hydrocarbon
removing permeation tube, called the « carbon kicker ». The external carbon kicker tube is ventilated
with under-vacuum zero air provided by the activated carbon filter.
The sample is then sent into the measurement module (2) located in a 50°C temperature-controlled
enclosure.
This measurement module includes:
The UV lamp (11) supplied by the UV lamp board (9). The Interconnection board (5) controls a
chopper (12) allowing lamp beam interruption to measure the black photomultiplier current.
A reaction chamber where fluorescence takes place.
The detector unit consisting of a photomultiplier tube and a PM preamplifier board to measure the
emitted SO2molecules fluorescence.
The UV reference measurement unit consisting of one photodiode and the photodiode board. This
set measures the UV lamp light intensity.
A diaphragm pump (3) aspirates the sample. A restrictor controls the sample flow.

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(1) sample inlet dust filter, (2) measurement module, (3) pump, (4) ARM20 board, (5) Interconnection
board, (6) 24 VDC power supply unit, (7) measurement board, (8) pressure sensor boards, (9) UV lamp
supply board, (11) UV lamp, (12) shutter, (13) solenoid valve-filter assembly.
Figure 1–5 – AF22e internal view

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1.1.3. VARIOUS OPERATING MODES
1.1.3.1. Standard
Programmable measurement range from 1 to 10 ppm, with a detection limit of 0.4 ppb for 36 second
response time.
Automated monitoring of parameters influencing metrology (UV emitted energy, gas flow,
temperature and pressure) and correct operation tests.
Measurement values in ppb or µg/m3 (integrated conversion coefficient).
Memory storage of average measurements in programmable periods.
1.1.3.2. Option
The following analyzer options are available:
One ESTEL board case, as accessory, to be directly connected to USB ports on rear panel,
One RS case delivered as an accessory, to be directly connected to USB ports on rear panel.
A permeation bench.
1.1.4. ASSOCIATED EQUIPMENT (OPTIONAL)
Analog recorders and data loggers.
Digital data acquisition system.

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1.3. CHARACTERISTICS
1.3.1. TECHNICAL CHARACTERISTICS
Measurement range :
–
Programmable by user (0 to 10 ppm)
Units : –ppb or µg/m3(programmable)
Noise () : –0.2 ppb (response time: 36 seconds)
Minimum detectable limit (2 ) : –0.4 ppb (response time: 36 seconds)
Response time (0–90 %): –20-120 seconds, fixed or automatic (programmable)
Zero drift : –< 2 ppb / 24 hours in operation
Span drift :
–
< 0.5 % / 24 hours
Linearity : –± 2%
H20 influence : –2 ppb for 2 % H2O
Temperature influence :
–
0.15 ppb /°C
Sample flow-rate : –Approximately 0.415 liter/min
Display : –TFT LCD color screen, resolution : 800 (RGB)x 480,
size : 7 inches
Control : –Touch screen
Output signals (option) :
–
4 analog outputs (0-1 V, 0-10 V, 0-20 mA, 4-20 mA)
Power supply : –100~250Vac, 50/60Hz + ground
Consumption : –280 VA when starting-up the unit
–
110 VA in normal operation
Working temperature : –+ 10 °C to + 35 °C
Memory storage of measurement values : –Capacity : 1 year
–
Flash EPROM storage
Alarm checks : –Detection and indication of irregularities in continuous:
temperature, flow rate, UV energy, too-high PM tube voltage,
out of SO2 programmable measurement thresholds,
calibration fault.
Maintenance test and diagnostics : –Direct selection with the touch screen and/or remote
selection with the embedded Web server.
Backup saving time for the real-time clock and
RAM-stored data : –1 year maximum.
Ethernet output :
–
RJ45 socket, UDP protocol.
USB port : –Type A USB socket: 2.0 (3.0 compliant)
Zero/span external SV control :
–
Contact connector with screw terminals
SV: Solenoid valve

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1.3.3. STORAGE CHARACTERISTICS
Temperature: – 10 to 60°C.
1.3.4. INSTALLATION CHARACTERISTICS
1.3.4.1. Links between units
The AF22e analyzer uses the external links and power supplies illustrated in Figure 1–6 :
Figure 1–6 – Links between units
1.3.4.2. Dimensions and weight
The analyzer comes in a standard 19-inch, three-unit high rack.
Length : 606 mm
Width : 483 mm
Height : 133 mm
Weight : 9 kg
1.3.4.3. Handling and storage
The AF22e analyzer must be handled with care to avoid damage to the various connectors and fittings
on the rear panel.
Make sure that the analyzer fluid inlets and outlets are protected with caps during handling.
1.3.5. STORAGE
The unit should be stored in the foam-packed case provided for this purpose.
Make sure that the analyzer fluid inlets and outlets are protected with caps during storage.

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483
14
38
36545
50
57
133
125
430
7
Figure 1–7 – AF22e dimensions (in mm)

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