Continuous Gas Analyzers, extractive
西门子SIPROCESS UV600紫外线分析仪
2/1 Siemens PA 01 News · February 2012
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■Overview
The function of the SIPROCESS UV600 gas analyzer is based on
UV resonance absorption spectrometry. It also is used to
measure very low NO, NO2, SO2 or H2S concentrations in gases.
■Benefits
• Very low cross-sensitivity with other gases
• All modules are thermostatically-controlled, and thus
independent of the ambient temperature
• Simultaneous measurement of NO and NO2 with subsequent
calculation of total. Therefore neither an NO2 converter nor a
CLD analyzer is required.
• Measurement in the UV range:
- No cross-sensitivity with H2O and CO2
-Very low SO2 and NO measuring ranges possible
• UV resonance absorption spectrometry:
- Measurement of very low NO concentrations
- Very low cross-sensitivity possible
• Very long service life of UV lamp (usually 2 years)
• Low drifts and high stability thanks to four-channel measuring
method with double generation of quotient
• True reference measurement for low-drift, stable results
• Interface for remote monitoring in networks and linking to
process control systems
• Optional calibration unit
- Filter wheel with calibration cells which can be automatically
swung into the optical path
- Low consumption of calibration gas
- Manual or automatic calibration possible
■Application
Fields of application
• Emission measurements
- Measurement of low NO concentrations in power plants or
gas turbines
- Monitoring of NOx in denitrification plants by direct
measurement of NO and NO2, as well as summation to NOx
in the analyzer
- Efficient measurement in desulfurization plants
- Monitoring of very small SO2 and NO concentrations
- Emission measurements in the paper and cellulose indus-
tries
• Process monitoring
- Measurement of SO2 in process gases in the paper and
petrochemical industries
- Optimization of NOx emissions in exhaust gas in the
automotive industry
-H2S and SO2 measurements in the residual gas purification
of sulfur recovery units
Special versions
Special applications
In addition to the standard combinations, special applications
are also available upon request, e.g. as regards the material in
the gas path and the sample chambers.
© Siemens AG 2012Continuous Gas Analyzers, extractive
SIPROCESS UV600
2/2 Siemens PA 01 News · February 2012
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西门子SIPROCESS UV600紫外线分析仪

 标准气体测量

NO

zui小测量范围
0 … 10 ppmv 0 … 20 ppmv 0…25 ppmv 0…50 ppmv

zui大测量范围
0 ... 300 ppmv 0 ... 400 ppmv 0 ... 500 ppmv 0 ... 1000 ppmv

 NO2

zui小测量范围
0 … 10 ppmv 1) 0 … 20 ppmv 0 … 25 ppmv 0 … 50 ppmv

zui大测量范围
0 ... 300 ppmv 0 ... 400 ppmv 0 ... 500 ppmv 0 ... 1000 ppmv

 SO2

zui小测量范围
0 … 10 ppmv 1) 0 … 20 ppmv 0 … 25 ppmv 0 … 50 ppmv
zui大测量范围

0 ... 300 ppmv 0 ... 400 ppmv 0 ... 500 ppmv 0 ... 1000 ppmv

 H2S

zui小测量范围
0 … 25 ppmv 0 … 50 ppmv

zui大测量范围
0 ... 500 ppmv 0 ... 1000 ppmv
    

■Design
• 19" rack unit with 4 HU for installation
- in hinged frame
- in cabinets with or without escopic rails
• Internal gas paths: hose made of FKM (VitonTM) or pipe made
of PTFE or stainless steel
• Gas connections for sample gas inlet and outlet and for
reference gas: fittings, pipe diameter of 6 mm or ¼"
Display and control panel
• Large LCD panel for simultaneous display of measured value
and device status
• Sensor buttons with context-based functions
• Display protected by glass pane
• Contrast of the LC display can be adjusted
SIPROCESS UV600, display and control panel
Inputs and outputs
• 2 configurable analog inputs
• 4 configurable analog outputs
• 8 digital inputs
• 8 digital outputs
Communications
Connection via SIPROCESS-UV600-specific software tool
Materials wetted by sample gas
1)
Depending on the version
Gas flow chart
SIPROCESS UV600, gas flow chart
Component  Material
Analyzer unit (sample chamber) Aluminum or stainless steel mat.
no. 1.44041)
, epoxy resin
Optical window CaF2 or quartz1)
, epoxy resin
Gas path, gaskets FKM (Viton), PTFE, stainless steel
mat. no. 1.45711)
Chamber Aluminum or stainless steel
1)
Gas inlet/outlet PVDF, stainless steel, mat. no.
1.44011)
Moisture sensor Stainless steel mat. no. 1.4571,
platinum, epoxy resin
Diaphragm pump
•Central body PVDF
• Diaphragm FKM (Viton), EPDM
o Sample gas inlet
Sample gas outlet Moisture
sensor
(optional)
Filter
(optional)
UV module
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SIPROCESS UV600
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■Mode of operation
The measuring principle of the SIPROCESS UV600 is based on
the molecule-specific absorption of gases in the ultraviolet
wavelength range. Radiation of a wavelength appropriate to the
measurement is passed through the sample, and the selective
absorption which is proportional to the concentration of the
measured component is determined. 
Measuring method  
An electrodeless discharge lamp (1) emits broadband in the
ultraviolet spectral range. A filter wheel unit (2) generates the
ultraviolet radiation suitable for the respective measured
component. Either interference filter correlation (IFC) or gas filter
correlation (GFC), or a combination of the two methods, can be
used for this purpose.
Interference filter correlation (IFC)  
The sample and reference radiations are generated alternay
with two different interference filters being swung into the beam
path (filter wheel 2a).
Gas filter correlation (GFC)  
Especially when NO is the measured component, the reference
radiation is generated by swinging in a gas filter which is filled
with the associated gas (filter wheel 2b).
IFC and GFC
The two filter wheels are combined in order to measure NO in
combination with other measured components.
Design of the analyzer unit  
After passing through the filter unit, the beam is directed via a
lens (3), a beam divider (4) and a mirror (4) into the sample
chamber (6) and reference chamber (7). 
The sample beam passes through the sample chamber (6), into
which sample gas flows, and its intensity is weakened in line with
the concentration of the measured component. The reference
beam is directed via a mirror (5) into the reference chamber (7).
This is filled with a neutral gas. 
The detectors (9) receive the sample and reference beams in
succession. These measured signals are amplified and
evaluated using electronics.
The measuring system is temperature-controlled to minimize
external temperature influences.
The physical state of the measuring system is recorded simulta-
neously through time-offset detection of the reference beam,
and compensated if necessary. 
A quotient is generated for each detector from the determined
signal values, and the ratio of these quotients determined. This
double generation of quotients means that symmetrical signal
drifts are compensated in the best possible manner in addition
to proportional signal drifts.
Note
The sample gases must be fed into the analyzers free of dust.
Condensation in the sample chambers must be prevented.
Therefore, the use of gas modified for the measuring task is
necessary in most application cases.
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SIPROCESS UV600
2/4 Siemens PA 01 News · February 2012
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■Function
SIPROCESS UV600, operating principle
9
M
2a IFC
GFC 2b
M
IFC + GFC
M
M
2b
2a
M
10
1
2
3
5
4 9
2a
2b
6
7
8
8
M
M
1 UV lamp
2 Filter wheel unit
2a Filter wheel 1
2b Filter wheel 2
3 Collimator lens
4 Beam divider
GFC Gas filter correlation
IFC Interference filter correlation
M Motor
5 Mirror
7 Reference chamber
8   Focus lens
9   Detector
10 Calibration unit
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SIPROCESS UV600
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■Technical specifications
1)
 Only for daily recalibration and air-conditioned environment ( +/- 2 °C)
General information
Measuring ranges 3, automatic measuring range
switching
Detection limit (2σ) < 1% of span
Smallest possible span  Dependent on order configuration
NO: 0...10/ 0…20/ 0…25/
0…50vpm
NO2:0…101)
/ 0 ... 20 / 0 … 25 /
0…50vpm
SO2:0…101)
/ 0 ... 20 / 0 … 25 /
0…50vpm
H2S: 0…25/ 0…50vpm
Largest possible span Dependent on order configuration
NO, NO2, SO2:
0… 300 to 0...1000vpm
H2S: 0 … 500 to 0 ... 1 000 vpm
UV lamp
• Design  EDL, electrodeless discharge
lamp
• Service life ≈ 2 years (17 500 h)
Conformity CE mark
Design, enclosure
Degree of protection IP40
Weight approx. 17 kg
Requirements of location of use
Installation location Within closed building
Atmospheric pressure in the
environment
700 …1 200 hPa
Relative humidity 10 ... 95%, non-condensing
Permissible contamination Pollution degree 1
Maximum geographic altitude of
location of use
2 500 m above sea level
Permissible ambient temperature
•Operation +5 ... +45 °C (41 ... 113 °F)
• Transport and storage -10 ... +70 °C (14 ... 158 °F)
Operating position Front wall, vertical
, max. ± 15° angle for each
spatial axis
(maximum permissible inclination
of the base surface during
operation wtih constant operating
position)
Permissible vibration/shock
• Vibration displacement 0.035 mm
(in the range 5 ... 59 Hz)
• Amplitude of the starting acceler-
ation
5m/s2 (in the range 59 … 160 Hz)
Electrical characteristics
Line voltage (optional, see
nameplate)
93 ... 132 V AC, 186 ... 264 V AC
Line frequency (AC) 47 ... 63 Hz
Permissible overvoltages (transient
surges in the power supply
network)
Up to overvoltage category II in
accordance with IEC 60364-4-
443
Power consumption Approx. 50 VA, max. 300 VA
EMC interference immunity (electro-
magnetic compatibility)
In accordance with EN 61326-1,
EN 61326-2-1, EN 61000-6-2, EN
61000-6-4 and EU Directive 2004/
108/EC. In the case of electro-
magnetic radiation in the
frequency range from 750 MHz
± 20 MHz, increased measuring
errors can occur for small
measuring ranges
Electrical safety In accordance with EN 61010-1
Internal line fuses
•primary 6.3 A, not replaceable
• secondary 8 A
Gas inlet conditions
Permissible sample gas pressure Relative to ambient/atmospheric
air pressure:
-200 ... +300 hPa
(-0.2 ... +0.3 bar)
Sample gas flow 20 ... 120 l/h (333 ... 2 000 ml/min)
Sample gas temperature 5 ... 55 °C
Measuring response
(relating to sample gas pressure 1 013 hPa absolute, 0.5 l/min sample
gas flow and 25 °C ambient temperature)
Reference point drift < ±1%/week of respective span
Zero point drift
• Standard measuring ranges < ± 1%/week of respective span
• Small measuring ranges (≤ 2x
smallest measuring range)
< ± 2%/week of respective span
• Measured components NO, NO2,
SO2
< ±1%/day of respective span
Repeatability (reproducibility) < ± 1% of respective span
Linearity error < ± 1% of respective span
Electric inputs and outputs
Analog output 4, 0 ... 24 mA; floating (electrically
isolated), residual ripple 0.02 mA,
resolution 0.1% (20 μA), max.
load 500 Ω, max. voltage ± 50 V
Relay outputs 8, with changeover contacts,
max. voltage ± 50 V loading
capacity: Max. 30 V AC / max. 48
V DC / max. 500 mA
Analog inputs 2, 0 ... 20 mA, reference potential
GND, signal strength max. 30 mA,
overcurrent protection max. ± 1 A,
voltage max. ± 50 V
Digital inputs 8, switching range 14 ... 42 V
(external control voltage), max.
voltage ± 50 V
Serial interface RS485, Ethernet (LAN)
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SIPROCESS UV600
2/6 Siemens PA 01 News · February 2012
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■Selection and ordering data
Product description Order No.
SIPROCESS UV600 gas analyzer, incl. gas module and barometric
pressure compensation
7MB2621- 77 77 7 - 0 77 7 Cannot be combined
Enclosure, version and gas paths
19 " rack unit for installation in cabinets
Gas connec-
tions
Gas
connections
Gas paths
Diameter Material Material
6 mm pipe PVDF Hose / Viton 0
6 mm pipe Swagelok PTFE  1
6 mm pipe Swagelok Stainless steel, with pipes 2
1/4" pipe Swagelok Stainless steel, with pipes 3
1. UV measured component
Measured
component
Smallest/largest
measuring range
corresponds to
NO 0 ... 10 / 0 ... 300 ppmv 0 … 15 / 0 ... 450 mg/m3 A A
0 ... 20 / 0 ... 400 ppmv 0 … 25 / 0 ... 500 mg/m3 A B
0 ... 25 / 0 ... 500 ppmv 0 … 35 / 0 … 700 mg/m3 A C
0 ... 50 / 0 ... 1 000 ppmv 0 … 50 / 0 ... 1 000 mg/m3 A D
NO2 0 ... 10 / 0 ... 300 ppmv1)
0 … 20 / 0 … 600 mg/m3 1)
B A B A
0 ... 20 / 0 ... 400 ppmv 0 … 40 / 0 … 800 mg/m3 B B B B
0 ... 25 / 0 ... 500 ppmv 0 … 50 / 0 … 1 000 mg/m3 B C B C
0 ... 50 / 0 ... 1 000 ppmv 0 … 100 / 0 ... 2 000 mg/m3 B D B D
SO2 0 ... 10 / 0 ... 300 ppmv1)
0 … 25 / 0 … 750 mg/m3 1)
C A C A
0 ... 20 / 0 ... 400 ppmv 0 … 50 / 0 … 1 000 mg/m3 C B C B
0 ... 25 / 0 ... 500 ppmv 0 … 75 / 0 … 1 500 mg/m3 C C C C
0 ... 50 / 0 ... 1 000 ppmv 0 … 130 / 0 … 2 600 mg/m3 C D C D
H2S 0 ... 25 / 0 ... 500 ppmv 0 … 40 / 0 … 800 mg/m3 D C D C
0 ... 50 / 0 ... 1 000 ppmv 0 … 75 / 0 ... 1 500 mg/m3 D D D D
2. UV measured component
Measured
component
Smallest/largest
measuring range
corresponds to
without 0 0 0 0
NO2 0 ... 10 / 0 ... 300 ppmv1)
0…20/0…600mg/m3 1)
2 1 2 1
0 ... 20 / 0 ... 400 ppmv 0 … 40 / 0 … 800 mg/m3 2 2 2 2
0 ... 25 / 0 ... 500 ppmv 0 … 50 / 0 … 1 000 mg/m3 2 3 2 3
0 ... 50 / 0 ... 1 000 ppmv 0 … 100 / 0 ... 2 000 mg/m3 2 4 2 4
SO2 0 ... 10 / 0 ... 300 ppmv1)
0 … 25 / 0 … 750 mg/m3 1)
3 1 3 1
0 ... 20 / 0 ... 400 ppmv 0 … 50 / 0 … 1 000 mg/m3 3 2 3 2
0 ... 25 / 0 ... 500 ppmv 0 … 75 / 0 … 1 500 mg/m3 3 3 3 3
0 ... 50 / 0 ... 1 000 ppmv 0 … 130 / 0 … 2 600 mg/m3 3 4 3 4
H2S 0 ... 25 / 0 ... 500 ppmv 0 … 40 / 0 … 800 mg/m3 4 3 4 3
0 ... 50 / 0 ... 1 000 ppmv 0 … 75 / 0... 1 500 mg/m3 4 4 4 4
3. UV measured component
Measured
component
Smallest/largest
measuring range
corresponds to
without XX
SO2 0 ... 10 / 0 ... 300 ppmv1)
0 … 25 / 0 … 750 mg/m3 1)
CA C A C A
0 ... 20 / 0 ... 400 ppmv 0 … 50 / 0 … 1 000 mg/m3 CB C B C B
0 ... 25 / 0 ... 500 ppmv 0 … 75 / 0 … 1 500 mg/m3 CC C C C C
0 ... 50 / 0 ... 1000 ppmv 0 … 130 / 0 … 2 600 mg/m3 CD C D C D
H2S 0 ... 25 / 0 ... 500 ppmv 0 … 40 / 0 … 800 mg/m3 DC D C D C
0 ... 50 / 0 ... 1 000 ppmv 0 … 75 / 0 ... 1 500 mg/m3 DD D D D D
1)
 Smallest measuring range 0 ... 10 ppm only in the case of daily recalibration and air-conditioned environment (± 2 °C)
© Siemens AG 2012Continuous Gas Analyzers, extractive
SIPROCESS UV600
2/7 Siemens PA 01 News · February 2012
■Selection and ordering data (continued)
2
Power cable
EU standard, straight 0
UK standard 1
US standard 2
Additional versions
Please add "-Z" to the order number and specify the order code.
Second IO module A13
Calibration unit 1 component B11
Calibration unit 2 components B12
Calibration unit 3 components B13
Flow monitor C11
Humidity monitor  C12
Pressure sensor (sample gas) C14
Description Quantity for
2years
Quantity for
5years
Order No.
Safety filter FI64 1 2 A5E03707235
Power supply units, 24 V DC, 10 A 1 A5E03707236
Distribution board 1 A5E03707240
FKM hose d = 3/5, length = 1 m 2 5 A5E03707757
MEDL UV lamp with heater 1 2 A5E03707918
Motor flange 3 1 A5E03707919
Motor flange 2 1 A5E03707920
Gas filter with holder, for measurement of 2 A5E03707921
SIPROCESS UV600 chamber H = 300 mm, aluminum 1 A5E03707925
Calibration chamber with holder for A5E03707941
Calibration chamber with holder for SO2 and H2S 1 A5E03707942
Calibration chamber with holder for NO2 1 A5E03707943
Heater with 380 mm long cable, for SIPROCESS UV600:
MEDL, chamber, motor flange
1 2 A5E03707968
Moisture sensor 1 2 A5E03707969
Spare parts set - pressure sensor with gasket and O-ring 1 A5E03707970
Flow sensor with temperature sensor 1 2 A5E03707971
Diaphragm pump type 123, 24 V DC / 50 Hz 1 A5E03707986
Diaphragm assembly, EPDM for types 110-125 1 2 A5E03707987
O-ring for gas pump suspension 1 2 A5E03707988
Product description Order No.
SIPROCESS UV600 gas analyzer, incl. gas module and barometric
pressure compensation
7MB2621- 77 77 7 - 0 77 7 Cannot be combined
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SIPROCESS UV600
2/8 Siemens PA 01 News · February 2012
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■Dimensional drawings
SIPROCESS UV600, 19" rack unit, dimensions in mm

© Siemens AG 2012Continuous Gas Analyzers, extractive
SIPROCESS UV600
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■Schematics
Electrical connections
SIPROCESS UV600, gas connections and electrical connections
The SIPROCESS UV600 is supplied as standard with one or
(optionally) two input/output modules. The logic function of the
signal connections can be configured individually with the
service and maintenance software specific to SIPROCESS
UV600.
The signal connections are available at terminal strips X3, X4, X5
and X7 on the 12-pin plug connectors of the input/output
modules. The scope of delivery includes the corresponding
counterparts (plug connectors) with screw terminals.
SIPROCESS UV600, signal connections and plug connectors
SIEMENS
Power connection
Interfaces:
A RS 485 / external input/output
B RS 485 / external input/output
C Reserved for service
D Ethernet (LAN)
Signal connections of the
second, internal input/output
module (optional)
Signal connections of the
internal input/output module
(standard)
Internal input/output module (standard) with
terminal strips X3, X4, X5 and X7 Connection plug
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SIPROCESS UV600
2/10 Siemens PA 01 News · February 2012
■Schematics (continued)
2
Pin assignments
SIPROCESS UV600, pin assignments of digital inputs X3 (DI1 to DI8) and digital outputs X4 (DO1 to DO4) and X5 (DO5 to DO8)
Characteristics of the digital inputs:
• Floating optocouplers with common reference potential (DIC)
• Switching range 14 ... 42 V DC (external control voltage)
• The digital inputs can be operated either with positive or
negative voltage
• With inverted switching logic, the logic function of the control
input is active if no current is flowing through the control input
• Maximum voltage: ± 50 V
Characteristics of the digital outputs:
• Floating relay changeover contacts
• Single-pole changeover switch, three connections
• Maximum voltage: ± 50 V
• Connect inductive loads (e.g. relays, solenoid valves ...) via
spark-quenching diodes only
• Maximum load-carrying capacity (standard): Max. 30 V AC,
max. 48 V DC, max. 500 mA.
SIPROCESS UV600, pin assignment of the analog inputs X7 (AI1 and AI2) and analog outputs X7 (AO1 to AO4)
Characteristics of the analog inputs:
• The input signal is an analog current signal (standard 0 ... 20
mA, maximum 30 mA)
• The signal current must be provided by an external current
source
• Load (internal resistance) of analog input: 10 Ω
• Reference potential GND (see figure, analog inputs)
• Overcurrent protection: ± 1 000 mA
• Max. voltage: ± 50 V
Characteristics of the analog outputs:
• Analog outputs are floating (electrically isolated) and provide
a load-independent current signal
• Signal range 0 ... 24 mA
• Residual ripple 0.02 mA
• Resolution 0.1%
• Accuracy 0.25% of full-scale value
• Maximum load 500 Ω
• Maximum voltage ± 50 V
• Adjustable start or error state
Note for electrical isolation:
The electrical isolation is canceled if the negative poles of the
analog outputs are connected to GND.