SIPROCESS UV600

Заказные данные
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Аксессуары
(18)

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 H2}S concentrations in gases.

Область применения

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 industries

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 measurement

In typical emission applications
Taking account of possible cross-sensitivities (e.g. from mercaptan)

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.

Дизайн

19" rack unit with 4 HU for installation
- in hinged frame
- in cabinets with or without telescopic 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

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 steel¹⁾
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

¹⁾Depending on the version

Gas flow chart

SIPROCESS UV600, gas flow chart

Способ действия

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 alternately 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 UV analyzer module

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 simultaneously 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.

Additional measures depending on the application must be taken when introducing gases with flammable components at concentrations above the lower explosive limit (LEL). Please contact the technical department in such cases.

Функции

SIPROCESS UV600, operating principle

Чертеж

SIPROCESS UV600, 19" rack unit, dimensions in mm

Особенности

For NO, NO₂, SO₂: 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

Схема подключения

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

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.

Технические данные

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 … 50 vpm NO₂: 0 … 10¹⁾ / 0 ... 20 / 0 … 25 / 0 … 50 vpm SO₂: 0 … 10¹⁾ / 0 ... 20 / 0 … 25 / 0 … 50 vpm H₂S: 0 … 25 / 0 … 50 vpm
Largest possible span	Dependent on order configuration NO, NO₂, SO₂: 0 … 300 to 0 ... 1 000 vpm 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 vibrations/ shocks
Vibration displacement	0.035 mm (in the range 5 ... 59 Hz)
Amplitude of the starting acceleration	5 m/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 (electromagnetic 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 electromagnetic 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	Based on 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, max. signal strength 30 mA, max. overcurrent protection ±1 A, max. voltage ± 50 V
Digital inputs	8, switching range 14 ... 42 V (external control voltage), max. voltage ± 50 V
Serial interface	RS485, Ethernet (LAN)

¹⁾ Only for daily recalibration and air-conditioned environment ( +/- 2 °C)