Руководство по эксплуатации – Датчики MultiGas

Оглавление

1 General Specifications
2 Disadvantages of electrochemical (EC) sensors in comparison to the optical gas sensors RITTER »MultiGas«
3 Preventive / Protective Measures regarding the Gas to be measured
4 Scope of Supply
5 Setup
6 Infrared Sensors
7 Ultraviolet Sensors
8 Опции (installed inside of the sensor casing)

General Specifications

1.1. Casing Types

Тип 3

1.2. Dimensions

	Casing Type 1	Casing Type 2
A	171 mm	444 mm
B	290 mm ⁽¹⁾	305 mm
C	86 mm	145 mm
Weight, approx. ⁽²⁾	2⁺ kg	6.5 – 8 kg
Connections gas in-/outlet	PVDF screw-type tube connection for tube Ø 4_i / 6_o mm	PVDF screw-type tube connection for tube Ø 4_i / 6_o mm
Interfaces	USB ( Standard) / RS232 ( Option)	USB ( Standard) / RS232 ( Option)
Power	24 V DC	24 V DC

⁽¹⁾ May be larger with cuvettes for ppm measurement ranges
⁽²⁾ Depending on type and number of built-in sensor modules

1.3. Assignment of Sensor Types to possible Sensor Combinations

Part 1 – Pre‐configured sensors, incl. casing type 1 with gas connection fittings, data interface, plug‐in power supply – ready for use
Part 2 – Pre‐configured sensors, incl. casing type 2 with gas connection glands, data interface, fittings, data interface, plug‐in power supply ‐ ready for use
Part 3 – Individually combinable sensor modules, composition according to customer specification, delivery incl. housing in suitable size according to number and type of modules – ready for use
Part 4 – Casings for sensor modules, assembled according to customer’s specification
Part 5 – Built‐in options mounted inside of the casing
Part 6 – Accessories / options

Part 1: Pre‐configured Sensors
Incl. casing type 1 with gas connection fittings, data port, power supply Ready for use

Sensor Type: RITTER MultiGas xxx	Article No.	Group of Gases IR	Number of Detectable Gases in this Group	Group of Gases UV	Number of Detectable Gases in this Group
xxx = mono IR1	2678	CO₂ CO N₂O CH₄ C_nH_m^* CF₄ SF₆ H₂O	1
xxx = duo IR2	2742	CO₂ CO N₂O CH₄ C_nH_m^* CF₄ SF₆ H₂O	2
xxx = trio IR3	2743	CO₂ CO N₂O CH₄ C_nH_m^* CF₄ SF₆ H₂O	3
xxx = mono UV1	2749			O₃ Cl₂ ≤ 5% SO₂ NO₂	1
xxx = mono UV1 Cl₂ 30%	2763			Cl₂ ≤ 30%	1
xxx = duo UV2	2766			O₃ Cl₂ ≤ 5% SO₂ NO₂	2
xxx = duo IR1 + UV1	2797	CO₂ CO N₂O CH₄ C_nH_m^* CF₄ SF₆ H₂O	1	O₃ Cl₂ ≤ 5% SO₂ NO₂	1
xxx = trio IR1 + UV2	na	CO₂ CO N₂O CH₄ C_nH_m^* CF₄ SF₆ H₂O	1	O₃ Cl₂ ≤ 5% SO₂ NO₂	2

^* Calibration with Propane

Part 2: Pre‐configured Sensors
Incl. casing type 2 with gas connection fittings, data port, power supply Ready for use

Sensor Type: RITTER MultiGas xxx	Article No.	Group of Gases IR	Number of Detectable Gases in this Group	Group of Gases UV	Number of Detectable Gases in this Group
xxx = mono UV1 H₂S ≤ 5.000 ppm	2672			H₂S ≤ 5.000ppm	1
xxx = mono UV1 H₂S ≤ 1%	2855			H₂S ≤ 1%	1
xxx = UVRAS	2812			SO₂ NO₂ NO	1
xxx = duo IR1 + H₂S ≤ 5000 ppm	2959	CO₂ CO N₂O CH₄ C_nH_m^* CF₄ SF₆ H₂O	1	H₂S	1
xxx = duo IR1 + (H₂S ≤1% / NO)	2960	CO₂ CO N₂O CH₄ C_nH_m^* CF₄ SF₆ H₂O	1	H₂S ≤ 1% NO	1

^* Calibration with Propane

Part 3: Individually combinable sensor modules
Composition according Customer Specification
Delivery incl. casing of suitable size according to number and type of modules Ready for use

Sensor Type: RITTER MultiGas xxx	Article No.	Group of Gases IR	Number of Detectable Gases in this Group	Group of Gases UV	Number of Detectable Gases in this Group
xxx = Mod IR1	2813	CO₂ CO N₂O CH₄ C_nH_m^* CF₄ SF₆ H₂O	1
xxx = Mod IR2	2814	CO₂ CO N₂O CH₄ C_nH_m^* CF₄ SF₆ H₂O	2
xxx = Mod IR3	2815	CO₂ CO N₂O CH₄ C_nH_m^* CF₄ SF₆ H₂O	3
xxx = Mod UV1	2830			O₃ Cl₂ ≤ 5% SO₂ NO₂	1
xxx = Mod UV1 Cl₂ 30%	na			Cl₂ ≤ 30%	1
xxx = Mod UV1 H₂S ≤ 5.000 ppm	2841			H₂S	1
xxx = Mod UV1 H₂S ≤ 1%	2856			H₂S	1
xxx = Mod UV2	2831			O₃ Cl₂ ≤ 5% SO₂ NO₂	2
xxx = Mod UVRAS	2917			SO₂ NO₂ NO	3

^* Calibration with Propane

Part 4: Casings for Sensor Modules assembled according to Customer Specification

Casing Type: RITTER MultiGas xxx	Article No.	Casing Type	Suitable for
xxx = Cas-2 ⁽¹⁾	2817	Casing type 2	… multiple modules up to 444 x 145 x 305 mm
xxx = Cas-3 ⁽¹⁾	2818	Casing type 3	… multiple modules up to 464 x 189 x 305 mm

⁽¹⁾ Casing type depends on the type and number of built-in sensor modules

Part 5 Built‐in Options

Option Type: RITTER MultiGas xxx	Article No.	Name	Диапазон измерения
xxx = O₂ ^{(2) (3)}	2767	Oxgen Sensor	0 – 100%
xxx = O₂-resist ⁽³⁾	2824	Oxygen Sensor, H₂S resistant	0.5 – 35%
xxx = P ^{(2) (3)}	2771	Pressure Sensor	800 – 1200 mbar abs.[/wpml-string] / Resolution <1 mbar
xxx = P-resist ⁽³⁾	2825	Pressure Sensor, H₂S resistant	0.2 – 3.5 bar abs. / Resolution 2 mbar
xxx = H ^{(2) (3)}	2773	Humidity Sensor	0 – 100% RH
xxx = A/O	2648	Analog Voltage Output 0-2V / 0-5V / 0-10V	4 Analog output ports for 4 separate gas concentrations, 16 bit
xxx = Therm-Cas	2954	Thermostated Casing	Heating and thermostatting of the sensor casing at 50°C

⁽¹⁾ Casing type depends on the type and number of built-in sensor modules
⁽²⁾ Not suitable for SO₂, Cl₂, H₂S
⁽³⁾ Available as supplement to IR or UV sensor only

Part 6: Accessories / Options

Option Type: RITTER MultiGas xxx	Article No.	Name	Range
xxx = Cal-ZP-N₂	2805	Calibration Gas N₂	For zero-point calibration of all gases
xxx = Flow-V	2806	Mini Flow Valve	Control of flow rate, incl. Manometer for calibration gas bottle
xxx = Cal-CG-Cat1	2948	Calibration with special carrier gas (Ar, H₂, He) for gases category 1	Category 1 gases: CO₂ CO < 0Vol-% N₂O CH₄ C_nH_m^* CF₄ SF₆ O₃ CL₂ SO₂ < 10Vol-% NO₂ NO
xxx = Cal-CG-Cat2	2949	Calibration with special carrier gas (Ar, H₂, He) for gases category 2	Category 2 gases: CO > 10Vol-% H₂S SO₂ > 10Vol-%
xxx = Cal-ReCal-Cat1	2950	Calibration for gases category 1	Category 1 gases: CO₂ CO < 0Vol-% N₂O CH₄ C_nH_m^* CF₄ SF₆ O₃ CL₂ SO₂ < 10Vol-% NO₂ NO
xxx = Cal-ReCal-Cat2	2951	Calibration for gases category 2	Category 2 gases: CO > 10Vol-% H₂S SO₂ > 10Vol-%

Инфракрасный модуль NDIR Ультрафиолетовый модуль NDUV Ультрафиолетовый модуль NDUV / UVRAS

^* Калибровка с помощью пропана

Disadvantages of electrochemical (EC) sensors in comparison to the optical gas sensors RITTER »MultiGas«

EC sensors become “blind” over time and then display a constant value, usually zero. This suggests misleadingly a stable zero point.
EC sensors must therefore be replaced preventatively every 0.5 – 2 years, after replacement the sensor must be recalibrated, as the tolerances of EC sensors are relatively high. This causes supplementary additional costs.
With EC sensors, mutual influence and deterioration occur by different gases, e.g. NO₂ damages the SO₂ sensor and vice versa.
In many countries (e.g. in China) EC sensors are forbidden by law with governmental inspection and approval measurements, because they show too low values if they are contaminated or aged. The user then receives “false positive” values.
The lifetime of the EC cells is already reduced during storage; therefore, the storage should only be a few weeks.
The response time (t90) is relatively long compared to the optical measuring methods – mostly about 30 sec. Optical systems are in the range < 5 sec.
Due to the measuring principle of the EC sensors there is always a chemical reaction between the test gas and the sensor. By this reaction, small quantities of the test gas components are converted. For example, CO is converted into CO₂. With low quantities of test gas, measurements beyond the gas sensor can therefore be influenced because fewer CO molecules are present in the gas sample.

Preventive / Protective Measures regarding the Gas to be measured

Important: Please specify the desired options when ordering

a) Additional tube connection for flushing of the casing

The gas lines inside the casing and the measuring cuvette are gas-tight by means of O-rings and other gas-tight connections. However, as with all connections, a leakage rate, however slight, cannot be ruled out. With an additional tube connection for flushing of the casing, an accumulation of the measuring gas inside the casing can be prevented.

In the case of toxic or aggressive gases, a suction line can be connected via this tube connection, which creates a under-pressure inside the housing thus preventing the gas from escaping from the casing.

In case of ignitable gases (methane, hydrogen, etc.), a pressure or suction line can be connected via this tube connection creating an over- or under-pressure inside the casing thus preventing the accumulation of an ignitable gas mixture.

пожалуйста, обратите внимание: H₂S can be perceived as an unpleasant smell even in the ppb range. Even with an O-ring seal, micro-leaks can occur, which can be extracted by flushing the housing.

b) Heated and thermostatted casing

A condensation of the measuring gas inside of the sensor must be prevented. This is done in general for example by a condensation trap or gas cooler.Alternatively, the inside of the sensor casing can be heated and thermostatted at 50°C (standard). The heating not only avoids condensation inside of the sensor but ensures constant measurement results as well.

c) Particle filter

Please make sure by use of a suitable filter that no particles are carried into the sensor. These might block the small orifices of the internal fittings. It is recommended to use filters of 5 micron or smaller.

Scope of Supply

No. of Items	Item
1	Document folder including : Calibration Certificate / Листы данных / Software Manual
1	Sensor in table top casing
1	Power adapter
1	Data acquisition software (on USB memory card) 1 USB connection cable (sensor computer )
3m	Viton tubing Ø_i 4mm/Ø_o 6mm

Setup

Unpack all items carefully
Install the data acquisition software according to the “RITTER MultiGas Software Manual”.
Don’t start the software at this point in time.
Place the sensor next to the gas source
Обратите внимание: A tube connection between gas source and sensors that is as short as possible allows a small dead space created by the tubing. In turn, a small dead space enables a fast response time of the sensor.
Connect the power adapter to socket “DC 24 V” at the rear side of the sensor and to mains.
Connect the data acquisition cable to the respective socket at the rear side of the sensor and to the computer:
1. USB cable to the socket “USB”
2. RS232 cable to the socket “RS 232” (Опция )
Connect the gas source to the gas inlet port of the sensor by using the provided tubing as follows:
1. Unscrew the screw cap from the gas inlet port.
2. Slide the screw cap onto the end of the tube with the thread of the screw cap facing the tube end.
3. Push the tube onto the cone in the center of the gas inlet port.
4. Slide the screw cap to the gas inlet port and screw it hand-tightly in place.
Если применимо: подсоедините порт выхода газа датчика к другим компонентам, таким как мешки для отбора проб газа, выхлопная трубка и т. д.
- Подсоединение трубки к газоотводному порту происходит так же, как описано выше.
Switch-on the power switch at the front side of the sensor casing.
Start the software and open the COM port(s) of the connected sensor module(s) according to the software manual.

The RITTER »MultiGas« Sensor is now ready for use.

Infrared Sensors

Описание

Gas analysis based on the NDIR technique is an established method to determine the concentrations of gases in complex mixtures. The RITTER »MultiGas« sensors use new optical components for optimal analysis results: Up to 3 optical filters analyse the gas which flows through the sensor as one gas stream. The optional oxygen, pressure, and humidity sensors are in-line with the same single gas stream.

The individual internal modules are sealed by means of O-ring connections.

In order to achieve an optimum adaptation to the required measuring range, the lengths of the modular measurement cells (= cuvettes) can be implemented in the range of 5 mm (large measurement range in percentage level) up to 250 mm (small measurement range in ppm level).

Cuvettes with a length ≥ 20 mm are coated with a resistant gold layer in order to improve the reflection properties for low concentration level detection. Cuvettes used with aggressive gases are gold-coated as well.

The other internal mechanical parts are made out of aluminium, optionally out of stainless steel.

For fast response applications the measuring system delivers a stable result within t90 ≈ 3 seconds.

The entire unit can be disassembled for easy maintenance/service.

Приложения

Biogas / natural gas analysis
Environmental and Process Measurement
TOC analysers
Continuous Emission Monitoring (CEM)
Elemental analysis
Industrial gas analysis

Specifications

General features

Measurement technology:	Innovative NDIR Sensor (non-dispersive infrared sensor)
Detectable gases:	CO₂ CO N₂O CH₄ C_nH_m^* CF₄ SF₆ H₂O
Number of simultaneously detectable gases:	max. 3 per sensor unit
Measurement ranges:	See below
Flow rate range:	5 ~ 300 ltr/h – For higher flow rates the sensor can be operated in bypass
Max. gas inlet pressure:	300 mbar
Pressure loss (without additional optional sensors):	10 @ 100 / 35 @ 200 / 70 @ 300 (mbar @ ltr/h)
Temperature compensation:	Yes
Data acquisition software:	Yes
Lifetime of IR radiation source:	> 40 000 h
Measurement cuvette:	Aluminium, with measurement ranges ≤1% gold-plated inside
Cuvette sealing:	Viton O-ring
кожух:	High-quality table-top casing, aluminium
Dimensions (W x H x L):	171 x 86 x 290 mm
Вес:	approx. 2 kg
Gas connections:	PVDF screw-type tube connection for tube Ø_i 4mm, Ø_o 6 mm

Measuring response

Linearity error:	< ± 1% F.S.
Repeatability:	± 0.5% F.S.
Long term stability zero:	< ± 2% F.S. / week
Long term stability span:	< ± 2% F.S. / month
Temperature influence of zero point:	< 1% F.S. / 10K
Temperature influence of span:	< 2% F.S. / 10K
Cross sensitivity:	< 2% F.S.
Pressure influence:	< 1.5% / 10hPa of reading
Warm-up time:	2 min
Response time (t90):	≈ 3 sec
Sampling frequency by software:	≤ 10 Hz
Detection limit:	See below
Resolution:	0.5 x detection limit
Water vapour:	No influence with measurements of CO₂ and CH₄

Electrical features

Power supply:	24 VDC incl. power plug 100 ~ 240 VAC / 24 VDC
Average power consumption:	< 1W
Interface:	USB (standard), RS232 (Опция) – incl. data transmission cable 1 m
Analogue voltage output (Опция):	0-2V / 0-5V / 0-10V

Climatic conditions

Operating temperature:	+15 ~ +45 °C
Storage temperature:	–20 ~ +60 °C
Operating pressure:	800 ~ 1200 hPa (mbar)
Ambient humidity:	0 ~ 95% rel. humidity // Condensing inside of sensor must be prevented!

* Analysis of C_nH_m^*

The calibration of sensors for C_nH_m will be performed with propane. Aromatic hydrocarbons are also measured but with a different weighting. This means that the sensitivity of the sensor is significantly smaller with these gases than with other hydrocarbons.

Таблица диапазонов измерений

	Диапазоны измерения / Значение полной шкалы (F.S.)
	100 Vol.%	50 Vol.%	30 Vol.%	20 Vol.%	10 Vol.%	5 Vol.%	1 Vol.%	5,000 ppm	2,000 ppm	1,000 ppm	500 ppm	300 ppm	100 ppm	50 ppm	10 ppm
CO₂
CO
N₂O
CH₄
C_nH_m^*
CF₄
SF₆
H₂O	Диапазоны измерений по запросу

Инфракрасный модуль NDIR Ультрафиолетовый модуль NDUV Ультрафиолетовый модуль NDUV / UVRAS

^* Калибровка с помощью пропана

Table of Detection Limits (= 3 σ) in Percent of Full Scale

	Пределы обнаружения / % от Полного Значения Шкалы (F.S.)
	100 Vol.%	50 Vol.%	30 Vol.%	20 Vol.%	10 Vol.%	5 Vol.%	1 Vol.%	5,000 ppm	2,000 ppm	1,000 ppm	500 ppm	300 ppm	100 ppm	50 ppm	10 ppm
CO₂	< 0,1%	< 0,1%		< 0,1%	< 0,1%	< 0,1%	< 0,1%	< 0,1%	< 0,1%	< 0,1%	< 0,1%		< 0,3%	< 0,3%
CO	< 0,2%	< 0,2%	< 0,2%		< 0,2%	< 0,2%	< 0,2%	< 0,2%	< 0,3%	< 0,5%	< 0,5%
N₂O	< 0,1%	< 0,1%	< 0,1%						< 0,1%	< 0,1%	< 0,1%	< 0,1%	< 0,3%
CH₄	< 0,1%	< 0,1%	< 0,1%		< 0,1%	< 0,1%	< 0,1%	< 0,1%	< 0,3%	< 0,5%
C_nH_m^*	< 0,1%	< 0,1%	< 0,1%		< 0,2%	< 0,2%	< 0,2%	< 0,2%	< 0,5%	< 0,5%
CF₄	< 0,2%	< 0,2%	< 0,2%
SF₆	< 0,1%	< 0,1%	< 0,1%					< 0,2%		< 0,5%			< 0,3%	< 0,3%
H₂O	Диапазоны измерений по запросу

Инфракрасный модуль NDIR Ультрафиолетовый модуль NDUV Ультрафиолетовый модуль NDUV / UVRAS

^* Калибровка с помощью пропана

Определение предела обнаружения

Предел обнаружения - это наименьшее значение измерения, которое может быть получено с определенной неопределенностью. Эта неопределенность включает в себя разрешение, шум и стабильность газового датчика для конкретного газа и конкретного диапазона измерений. Для оценки значения предела обнаружения проводится несколько единичных измерений при одинаковых условиях измерения. По полученным результатам единичных измерений рассчитывается стандартное отклонение "Sigma" (σ). Значения, приведенные в таблице, равны тройной величине "Sigma".

Recalibrations

The following recalibration intervals are recommended for IR sensors:

Zero-point: Weekly with inert gas, e.g. Nitrogen
The recalibration of the zero point is described in the software manual.
End-point (full scale): Every 3 months with suitable calibration gas

Ultraviolet Sensors

Описание

The RITTER »MultiGas« UV sensor is the world’s first gas analysis module based on miniaturized UV-LEDs. The stability and lifetime of these UV-LEDs enables high-precision gas analyses down to the ppm range. By using two UV-LEDs two gases can be detected simultaneously. Furthermore, with this approach measuring ranges from ppm to Vol.-% can be realized.

In the spectral range from 200 nm to 500 nm, nitrogen oxides (NO + NO₂), aromatic hydrocarbons, hydrogen sulphide, ozone, sulphur dioxide and chlorine can be reliably detected with this new sensor platform.

The entire unit can be disassembled for easy maintenance/service.

The individual internal modules are sealed by means of O-ring connections.

The internal mechanical parts are made out of aluminium, optionally out of stainless steel.

For fast response applications the measuring system delivers a stable result within t90 ≈ 1-2 seconds.

Приложения

Biogas / natural gas analysis
Environmental and Process Measurement
TOC analysers
Continuous Emission Monitoring (CEM)
Elemental analysis
Industrial gas analysis

Specifications NDUV Sensor

General features

Measurement technology:	Innovative NDUV Sensor (non-dispersive ultraviolet sensor)
Detectable gases:	O₃ CL₂ H₂S SO₂ NO₂
Number of simultaneously detectable gases:	max. 2
Measurement ranges:	See below
Flow rate range:	1 ltr/d ~ 300 ltr/h – For higher flow rates the sensor can be operated in bypass
Max. gas inlet pressure:	300 mbar
Pressure loss (without additional optional sensors):	10 @ 100 / 35 @ 200 / 70 @ 300 (mbar @ ltr/h)
Temperature compensation:	Yes
Data acquisition software:	Yes
Lifetime of UV radiation source:	> 8 000 h
Measurement cuvette:	Stainless steel with silicone coating inside
Cuvette sealing:	Viton O-ring
кожух:	High-quality table-top casing, aluminium
Dimensions (W x H x L):	464 x 189 x 305 mm
Вес:	approx. 6.5+ kg
Gas connections:	PVDF screw-type tube connection for tube Ø_i 4mm, Ø_o 6 mm

Measuring response

Linearity error:	< ± 1% F.S.
Repeatability:	± 0.5% F.S.
Long term stability zero N₂:	< ± 1% F.S. / 24h
Long term stability span:	< ± 1% F.S. / month
Temperature influence of zero point:	< 1% F.S. / 10K
Temperature influence of span:	< 2% F.S. / 10K
Cross sensitivity:	< 2% F.S.
Pressure influence:	< 1.5% / 10hPa of reading[/wpml-string]
Warm-up time:	1 min (initial), <60 min for full specification
Response time (t90):	1.5 – 15 sec[/wpml-string]
Sampling frequency by software:	≤ 10 Hz
Detection limit:	See below
Resolution:	0.5 x detection limit

Electrical features

Power supply:	24 VDC incl. power plug[/wpml-string] 100 ~ 240 VAC / 24 VDC
Supply current (peak[/wpml-string])	<0.4 A
Average power consumption	< 7.5 W
Interface:	USB (standard), RS232 (option) – incl. data transmission cable 1 m
Analogue voltage output (option[/wpml-string]):	0-2V / 0-5V / 0-10V

Climatic conditions

Operating temperature:	+25 ~ +45 °C
Storage temperature:	–20 ~ +60 °C
Operating pressure:	800 ~ 1200 hPa (mbar)
Ambient humidity:	0 ~ 95% rel. humidity // Condensing inside of sensor must be prevented!

Specifications H₂S Sensor

The H₂S sensor works according to the principle of non-dispersive UV absorption (NDUV).

The measuring wavelength used is in the lower nanometer range, which enables inter-ference-free measurements with water vapour and hydrocarbons. This makes the sensor ideal for use in biogas measurements, as accompanying gases such as NH3, CO2, CH4 and H2O do not affect the accuracy of the measurements.

General features

Measurement technology:	Innovative NDUV Sensor (non-dispersive ultraviolet sensor) Dual beam
Detectable gases:	H₂S SO₂
Number of simultaneously detectable gases:	max. 2
Measurement ranges:	See below
Flow rate range:	6 ~ 300 ltr/h – For higher flow rates the sensor can be operated in bypass
Max. gas inlet pressure:	300 mbar
Pressure loss (without additional optional sensors):	10 @ 100 / 35 @ 200 / 70 @ 300 (mbar @ ltr/h)
Temperature compensation:	Yes
Data acquisition software:	Yes
Lifetime of UV radiation source:	> 8 000 h
Measurement cuvette:	Stainless steel with silicone coating inside
Cuvette sealing:	Viton O-ring
кожух:	High-quality table-top casing, aluminium
Dimensions (W x H x L):	464 x 189 x 305 mm
Вес:	approx. 6.5+ kg
Gas connections:	PVDF screw-type tube connection for tube Ø_i 4mm, Ø_o 6 mm

Measuring response

Linearity error:	< ± 1% F.S.
Repeatability:	± 0.5% F.S.
Long term stability zero N₂:	< ± 1% F.S. / 24h
Long term stability span:	< ± 1% F.S. / month
Temperature influence of zero point:	< 1% F.S. / 10K
Temperature influence of span:	< 2% F.S. / 10K
Cross sensitivity:	< 2% F.S.
Pressure influence:	< 1.5% / 10hPa of reading
Warm-up time:	1 min (initial), < 15 min for full specification
Response time (t90):	1.5 – 15 sec
Sampling frequency by software:	≤ 10 Hz
Detection limit:	See below
Resolution:	0.5 x detection limit

Electrical features

Power supply:	24 VDC incl. power plug 100 ~ 240 VAC / 24 VDC
Supply current (peak):	<0.4 A
Average power consumption:	< 7.5 W
Interface:	USB (standard), RS232 (Опция) – incl. data transmission cable 1 m
Analogue voltage output (Опция):	0-2V / 0-5V / 0-10V

Climatic conditions

Operating temperature:	+5 ~ +45 °C
Storage temperature:	–20 ~ +60 °C
Operating pressure:	800 ~ 1200 hPa (mbar)
Ambient humidity:	0 ~ 95% rel. humidity // Condensing inside of sensor must be prevented!

Specifications UVRAS Sensor

For the detection of NO an EDL (electrodeless gas discharge lamp) is used. In the EDL, N₂ and O₂ are converted to NO and produce a selective UV radiation. With this radiation, a cross-sensitivity-free NO measurement is made possible. This method is called UV resonance absorption spectroscopy (UVRAS).

A combination of both the UVRAS and NDUV technology allows the simultaneous gas analysis of NO, NO₂ and SO₂ in the lower ppm range which is particularly important in flue gas analysis (Continuous Emission Monitoring, CEM).

General features

Measurement technology:	Innovative NDIR Sensor (non-dispersive infrared sensor)
Detectable gases:	SO₂ NO₂ NO
Number of simultaneously detectable gases:	max. 3 per sensor unit
Measurement ranges:	See below
Flow rate range:	1 ltr/d ~ 300 ltr/h – For higher flow rates the sensor can be operated in bypass
Max. gas inlet pressure:	300 mbar
Pressure loss (without additional optional sensors):	10 @ 100 / 35 @ 200 / 70 @ 300 (mbar @ ltr/h)
Temperature compensation:	Yes
Data acquisition software:	Yes
Lifetime of IR radiation source:	> 40 000 h
Measurement cuvette:	Aluminium, with measurement ranges ≤1% gold-plated inside
Cuvette sealing:	Viton O-ring
кожух:	High-quality table-top casing, aluminium
Dimensions (W x H x L):	171 x 86 x 290 mm
Вес:	approx. 2 kg
Gas connections:	PVDF screw-type tube connection for tube Ø_i 4mm, Ø_o 6 mm

Measuring response

Linearity error:	< ± 1% F.S.
Repeatability:	± 0.5 % F.S.
Long term stability zero N₂:	< 3 ppm / 24h
Long term stability span:	< ± 1 % F.S. / month
Temperature influence of zero point:	< 1 % F.S. / 10 K
Temperature influence of span:	< 2 % F.S. / 10 K
Cross sensitivity:	500 ppm NO₂ < 2 ppm 100 ppm SO₂ < 2 ppm 100 ppm N₂O < 10 ppm 20 °C D.P. H₂O < 10 ppm
Pressure influence:	< 1.5% / 10 hPa of reading
Warm-up time:	1 min (initial), < 60 min for full specification
Response time (t90):	1.5 ~ 15 sec
Sampling frequency by software:	≤ 10 Hz
Detection limit:	See below
Resolution:	0.5 x detection limit

Electrical features

Power supply:	24 VDC incl. power plug 100 ~ 240 VAC / 24 VDC
Supply current (peak):	1.5 A
Inrush current:	0.2 ~ 0.7 A
Power consumption:	36 W
Interface:	USB (standard), RS232 (Опция) – incl. data transmission cable 1 m
Analogue voltage output (option[/wpml-string]):	0-2V / 0-5V / 0-10V

Climatic conditions

Operating temperature:	+5 ~ +40 °C
Storage temperature:	–20 ~ +60 °C
Operating pressure:	800 ~ 1200 hPa (mbar)
Ambient humidity:	0 ~ 95% rel. humidity // Condensing inside of sensor must be prevented!

Таблица диапазонов измерений

	Диапазоны измерения / Значение полной шкалы (F.S.)
	100 Vol.%	50 Vol.%	30 Vol.%	20 Vol.%	10 Vol.%	5 Vol.%	1 Vol.%	5,000 ppm	2,000 ppm	1,000 ppm	500 ppm	300 ppm	100 ppm	50 ppm	10 ppm
O₃
CL₂
H₂S
SO₂
NO₂
NO

Инфракрасный модуль NDIR Ультрафиолетовый модуль NDUV Ультрафиолетовый модуль NDUV / UVRAS

^* Калибровка с помощью пропана

⁽¹⁾ Full Scale (FS)

Other ranges on request

Table of Detection Limits (= 3 σ) in Percent of Full Scale

	Пределы обнаружения / % от Полного Значения Шкалы (F.S.)
	100 Vol.%	50 Vol.%	30 Vol.%	20 Vol.%	10 Vol.%	5 Vol.%	1 Vol.%	5,000 ppm	2,000 ppm	1,000 ppm	500 ppm	300 ppm	100 ppm	50 ppm	10 ppm
O₃								< 0,1%	< 0,1%	< 0,1%	< 0,2%		< 0,5%	< 0,5%	< 0,5%
CL₂			< 0,1%		< 0,1%	< 0,1%	< 0,1%	< 0,1%	< 0,1%	< 0,1%	< 0,2%		< 0,5%
H₂S							< 0,1%	< 0,1%	< 0,1%	< 0,1%	< 0,2%		< 0,5%
SO₂					< 0,1%	< 0,1%	< 0,1%	< 0,1%	< 0,1%	< 0,1%	< 0,1%	< 0,1%	< 0,5%	< 0,5%	< 0,5%
NO₂								< 0,1%	< 0,1%	< 0,1%	< 0,2%	< 0,2%	< 0,5%	< 0,5%	< 0,5%
NO								< 0,1%	< 0,1%	< 0,1%	< 0,2%	< 0,2%

Инфракрасный модуль NDIR Ультрафиолетовый модуль NDUV Ультрафиолетовый модуль NDUV / UVRAS

^* Калибровка с помощью пропана

Определение предела обнаружения

1) Zero to Full Scale (FS)

Recalibrations

The following recalibration intervals are recommended for UV sensors:

Zero-point:
- Concentrations < 300 ppm: Every 48 hours with inertgas, e.g. Nitrogen
- Concentrations ≥ 300 ppm: Every 24 hours with inertgas, e.g. Nitrogen
End-point (full scale): Every 3 months with suitable calibration gas

Опции (installed inside of the sensor casing)

8.1. Датчик кислорода

Кислородный датчик представляет собой модуль датчика, доступный в качестве опции в дополнение к датчику RITTER MultiGas NDIR или NDUV. Измеренная концентрация кислорода отображается в прилагаемом программном обеспечении. Доступны две версии:

a) Спецификации для неагрессивных газов

Технология измерения:	Электрохимический датчик
Диапазоны измерения (Стандартная версия):	0 – 25% or 0 – 100%
Погрешность измерений:	±2% размаха (полная шкала)
Разрешение:	< 0.5% размаха (полная шкала)
Время отклика (t90):	≈ 15 s; автомобильная версия ≈ 5 s
Пожизненный:	около 5 лет

Hier steht mein Test

b) Технические характеристики для H₂S и аналогичных кислых газов

Технология измерения:	Электрохимический датчик
Диапазоны измерения (H₂S устойчивое исполнение):	0.5 – 35%
Погрешность измерений:	±2% размаха (полная шкала)
Разрешение:	< 0.5% размаха (полная шкала)
Время отклика (t90):	≈ 15 s; автомобильная версия ≈ 5 s
Пожизненный:	около 5 лет

8.2. Датчик давления

Изменение давления газа вызывает изменение количества молекул в объеме и, следовательно, изменение плотности газа. Это изменение плотности, в свою очередь, оказывает значительное влияние на результат измерения концентрации датчиком. Измеряя давление газа внутри ячейки для образца (кюветы), значение измерения концентрации компенсируется/корректируется.

Датчик давления представляет собой сенсорный модуль, поставляемый в качестве опции в дополнение к датчику RITTER MultiGas NDIR или NDUV. Измеренное значение давления отображается в прилагаемом программном обеспечении. Имеются две версии:

a) Спецификации для неагрессивных газов

Диапазон измерения:	800 – 1,200 mbar абс.
Погрешность измерений:	±1% размаха (полная шкала)
Разрешение:	<1 mbar
Время отклика (t90):	1 s
	Включая температурную компенсацию

b) Технические характеристики для H₂S и аналогичных кислых газов

Диапазон измерения:	0.2 – 3.5 bar абс.
Погрешность измерений:	±1% размаха (полная шкала)
Разрешение:	2 mbar
Время отклика (t90):	1 s
	Включая температурную компенсацию

8.3. Датчик влажности

Датчик влажности представляет собой сенсорный модуль, поставляемый в качестве опции в дополнение к датчику RITTER MultiGas NDIR или NDUV. Измеренные значения влажности (абсолютные и относительные) отображаются в прилагаемом программном обеспечении.

Технические характеристики

Технология измерения:	Полимерный датчик влажности
Диапазон измерения:	0-100% rH
Погрешность измерений:	±2% rH размаха (полная шкала)
Разрешение:	±1% RH
Время отклика (t90):	12 s
	Включая температурную компенсацию
Указанные значения (в программном обеспечении):	абсолютный (% absH) и относительная влажность (% rH)

8.4. Аналоговый выход напряжения

Для подключения к аналоговому устройству сбора данных выходной порт аналогового напряжения альтернативно обеспечивает следующие уровни напряжения:

0–2V
0–5V
0–10V

Диапазон напряжения предварительно установлен в соответствии с заказом и не может быть изменен пользователем.

Модуль вывода аналогового напряжения позволяет одновременно выводить до 4 различных значений на 4 отдельных канала:

3 x сигналы концентрации газа (за исключением кислородного датчика)
1 x значение влажности от датчика влажности

Обратите внимание: Назначение соответствующих измерений концентрации газа на соответствующие каналы. Эти назначения указаны в протоколе калибровки блока датчика.

Назначение контактов каналам измерения концентрации газа на разъеме и вилке аналогового выхода напряжения:

Контактный номер.	Назначение на канал	Цвета проводов кабеля
1	канал 1	белый
2	канал 2	зеленый
3	канал 3	желтый
4	канал 4	серый
5	ground	коричневый

Соединительный кабель поставляется с открытыми проводами для подключения к аналоговому устройству сбора данных пользователя.

8.5. Нагрев и термостатирование корпуса датчика

Чтобы избежать конденсации влажного газа внутри датчика, корпус датчика можно подогревать и термостатировать. В стандартной комплектации терморегулятор предварительно настроен на 50°C; по запросу возможны более низкие температуры.

Нагревательный элемент и регулятор температуры устанавливаются на опоре измерительной кюветы.

Технические характеристики

Регулятор температуры	30-50°C
Точность контроля	± 0,2 K
Мощность нагрева	12 Watt / 30 Ватт с внешним нагревательным элементом

General Specifications

1.1. Casing Types

1.2. Dimensions

1.3. Assignment of Sensor Types to possible Sensor Combinations

Part 1: Pre‐configured SensorsIncl. casing type 1 with gas connection fittings, data port, power supply Ready for use

Part 2: Pre‐configured SensorsIncl. casing type 2 with gas connection fittings, data port, power supply Ready for use

Part 3: Individually combinable sensor modules Composition according Customer Specification Delivery incl. casing of suitable size according to number and type of modules Ready for use

Part 4: Casings for Sensor Modules assembled according to Customer Specification

Part 5 Built‐in Options

Part 6: Accessories / Options

Disadvantages of electrochemical (EC) sensors in comparison to the optical gas sensors RITTER »MultiGas«

Preventive / Protective Measures regarding the Gas to be measured

Scope of Supply

Setup

Infrared Sensors

Описание

Приложения

Specifications

General features

Measuring response

Electrical features

Climatic conditions

Таблица диапазонов измерений

Table of Detection Limits (= 3 σ) in Percent of Full Scale

Определение предела обнаружения

Recalibrations

Ultraviolet Sensors

Описание

Приложения

Specifications NDUV Sensor

General features

Measuring response

Electrical features

Climatic conditions

Specifications H2S Sensor

General features

Measuring response

Electrical features

Climatic conditions

Specifications UVRAS Sensor

General features

Measuring response

Electrical features

Climatic conditions

Таблица диапазонов измерений

Table of Detection Limits (= 3 σ) in Percent of Full Scale

Определение предела обнаружения

Recalibrations

Опции (installed inside of the sensor casing)

8.1. Датчик кислорода

a) Спецификации для неагрессивных газов

b) Технические характеристики для H2S и аналогичных кислых газов

8.2. Датчик давления

a) Спецификации для неагрессивных газов

b) Технические характеристики для H2S и аналогичных кислых газов

8.3. Датчик влажности

8.4. Аналоговый выход напряжения

8.5. Нагрев и термостатирование корпуса датчика

Part 1: Pre‐configured Sensors
Incl. casing type 1 with gas connection fittings, data port, power supply Ready for use

Part 2: Pre‐configured Sensors
Incl. casing type 2 with gas connection fittings, data port, power supply Ready for use

Part 3: Individually combinable sensor modules
Composition according Customer Specification
Delivery incl. casing of suitable size according to number and type of modules Ready for use

Specifications H₂S Sensor

b) Технические характеристики для H₂S и аналогичных кислых газов

b) Технические характеристики для H₂S и аналогичных кислых газов