EZ-200 Water Activity Meter
September 8, 2020maMoS – modular stationary gas analyser
Small in size, yet very skilful analyser – it has the best capabilities/price ratio. maMoS is our alternative for large, intricate CEMS systems, as it does not fall behind them concerning functionality and abilities, and is far ahead in terms of expenses.
It has modular construction, and many add-ons, that makes it easy to adjust to a very specific, individual application.
Powerful PC software allows to adjust many aspects of the work with the analyser very individually (work schedule, analogue outputs’ behaviour, data presentations, and more…)
Main features
- Standard configuration consists up to 6 sensors (NDIR and/or electrochemical).
- Up to 8 sensors in an extreme, unique configuration.
- NEW option: Large display with backlight, 4 lines x 20 characters
- Different types of gas dryers to fit the customers needs.
- Compact, Split and Twin split configurations.
- Data-logger with SD card for results’ collection.
- Analogue outputs (both current and voltage) to control external devices.
- Digital and analogue inputs to pass signals from external devices, to trigger maMoS actions.
- Communication with PC via different interfaces (USB, LAN, RS485 and MODBUS).
- Different work modes to select from (continuous measurements, work with scheduler, measurements triggered with digital input, “work in-turns” – allows to measure from two different sources, and more…).
- Powerful PC program to adjust the analyser’s settings and to view the results.
- Rich offer of add-ons and accessories.
- NEW option: Possibility to work with heated hoses. Standard lengths: 3m 5m, 8m for 115VAC and 230VAC supply. Other hoses upon request.
- NEW option: Possibility to work with programmable logic controllers (i.e. Siemens S7-1200) via modbus RTU.
Compact vs split configuration
Compact configuration
Compact configuration – analyser with gas dryer on a common mounting plate, all installed near the measurement place
Split configuration
Split configuration – analyser and gas dryer are installed on separate mounting plates, each equipped with its own power supply module.
Gas dryer is installed near the measurement place, analyser can be installed in a distance from the dryer (in the operation convenient place). Analyser can be far away from the dryer, as the gas in the between connection is suitably prepared for measurement.
Twin-split configuration with one dryer mounted on a separate plate.
Twin split configuration – this version is based on compact configuration, but one MD3 dryer with its own power supply is added on a separate mounting plate.
Allows to perform measurements from two different locations (each dryer is installed near the measurement place). maMoS measures in turns – one cycle per location.
Twin split configuration – both dryers on separate plates
Twin split configuration – analyser and two gas dryers, each on its own mounting plate, each equipped with a power supply module.
Allows to perform measurements from two different locations (each dryer is installed near the measurement place). maMoS measures in turns – one cycle per location.
Complete and ready to operate maMoS unit
Drawing shows analyser in a compact configuration with a MD3 condensation dryer.
Gas and electric connectors (analysers bottom view)
Connection panel for the standard configuration with single gas channel
Other connections that can be found in the analyser
Configurations of the analyser’s gas channel
Analyser with a single gas channel is basic configuration of the device
The second (additional) gas channel is enabled for shorter time during the measurement phase. The additional gas channel is dedicated for the ”fragile” sensors, where they are protected against too long exposure to the gas. This way the life-time of the fragile sensors is prolonged.
Bio-measurement is a typical application for the double gas channel configuration – then the primary gas channel holds sensors CO2, CH4, O2, and the additional gas channel holds the H2S sensor that is recognised as a fragile one.
Analyser designed to work with overpressure with a single gas channel. Configuration can be used in installation with slight overpressure (<1.8bar)
MD2 & MD3 gas dryers
Example PC programme screenshots
Video
Applications
Technical Data
1. General parameters – analyser unit
Dimensions (W x H x D) | 240mm x 360mm x 160mm |
Weight (depends on equipment) | 4kg ÷ 5kg |
Casing’s material | ABS |
Protection grade | IP20 |
Mounting plate: dimensions (H x W) | material | weight | 596mm x 450mm | aluminium | 1.9kg |
Operating conditions | T: 10°C ÷ 50°C, RH: 5% ÷ 90% (non-condensing) |
Storing temperature | 0°C ÷ 55°C |
Power consumption (analyser unit only) | 30W max |
Data-logger: type | size | number of results | SD flash card | max 4GB | practically unlimited |
Display: type | parameters | Backlit LCD | 20 characters x 4 lines |
Gas pump: type | max gas flow | standard gas flow | Diaphragm | max 2l/min | 1.5l/min (90l/h) |
Maximal extraction point pressure: | Atmospheric ±200hPa |
Current analogue outputs | 4 outputs 0mA ÷ 20mA or 4mA ÷ 20mA |
Voltage analogue outputs | 4 outputs 0V ÷ 5V or 0V ÷ 10V |
Digital inputs | 2 inputs, TTL levels, floating = high level |
Digital outputs | 1 open collector output + 2 SPDT relays (optional) |
Computer communication interface | B type USB socket |
2. General parameters – power supply unit
Dimensions (W x H x D) | 360mm x 130mm x 56mm |
Weight (depends on equipment) | 1.4kg |
Casing’s material | aluminium |
Mounting plate | Power supply is mounted on common plate with analyser unit |
Operating conditions | T: +10°C ÷ +50°C, RH: 5% ÷ 90% (non-condensing) |
Storing temperature | -20°C ÷ +55°C |
Input voltage | 100 ÷ 240V AC 50/60Hz |
Output voltage | 24V DC / 6.3A | 150W |
Output current | 6.3A max |
Mains fuse | 6A |
Cable pass | 2 pcs PG-9 |
3. Gas dryer – MD2 gas dryer
Dimensions (W x H x D) | 211mm x 74mm x 82mm |
Weight | 450g |
Drying method | Water condensation by rapid cooling down |
Cooler type | Based on Peltier cooling element with fan (7VDC supply) |
Cooling temperature | Down to +4°C electronically stabilised Dew point of outlet gas 8°C below the temperature of inlet gas. |
Ready to operate after | 10 minutes |
Operating conditions | T: 0°C ÷ 35°C, RH: 5% ÷ 90% (non-condensing) |
Storing temperature | -20°C ÷ +60°C |
Maximum gas flow for efficient drying (at inlet gas temp. 100°C and RH 100%) |
40l/h |
Gas filter | Integrated, with condensate reservoir and replaceable insert |
Filter insert: length | ID | OD | material | pore size | 32mm | 15mm | 20mm | PE | 5µm |
Condensate removal | With peristaltic pump installed in analyser’s body |
Peristaltic pump capacity | 38ml/min |
Power supply | Via maMoS (through 15-pin D-SUB connector) |
Power consumption | 9W |
4. Gas dryer – MD3 gas dryer
Dimensions (W x H x D) |
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Weight | 1790g (single filter version) | ||||
Drying method | Water condensation by rapid cooling down | ||||
Cooler type | Based on Peltier cooling element with fan (12VDC supply) | ||||
Cooling temperature | Constant, about +1°C, output gas dewpoint about +4°C | ||||
Ready to operate after | 5 minutes | ||||
Operating conditions | T: 0°C ÷ 50°C, RH: 5% ÷ 90% (non-condensing) | ||||
Storing temperature | -20°C ÷ 60°C | ||||
Maximum gas flow for efficient drying (at inlet gas temp. 100°C and RH 100%) |
100l/h | ||||
Gas filters: quantity | material | 1 (optionally 2) | PA – body, PC – cover, viton – sealing | ||||
Filter insert: length | ID | OD | material | pore size | 42mm | 26mm | 32mm | glass fibre | 2µm | ||||
Power supply | Standard: via maMoS power supply (through 3-wire power cable) Standalone version via external supply module: 85V ÷ 264V AC / 24V DC |
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Condensate removal | With built-in peristaltic pump | ||||
Peristaltic pump capacity | 38ml/min | ||||
Power consumption | 30W |
5. Measurements of gas components
Table below shows the combination of all sensors/ranges. Please mind that the maximum possible gas sensors number in a device is 8 – see ordering guide.
Component | Method | Range | resolution | Accuracy | Time (T90) | Conformity |
O2 – Oxygen | Electrochemical, partial pressure | 20.95% | 0.01% | ± 0.2% abs. or 5% rel. | 45 sec | ISO 12039, CTM-030 |
O2 – Oxygen | Electrochemical, partial pressure | 25.00% | 0.01% | ± 0.2% abs. or 5% rel. | 45 sec | ISO 12039, CTM-030 |
O2 – Oxygen | Electrochemical, partial pressure | 100.00% | 0.1% | ± 0.2% abs. or 5% rel. | 45 sec | ISO 12039, CTM-030 |
O2 – Oxygen | Paramagnetic sensor | 25% | 0.01% | ± 0.2% abs. or 5% rel. | 45 sec | EN 14789, OTM-13 |
O2 – Oxygen | Paramagnetic sensor | 100% | 0.1% | ± 0.2% abs. or 5% rel. | 45 sec | EN 14789, OTM-13 |
CO – Carbon monoxide | Electrochemical sensor | 4 000ppm | 1ppm | ± 5ppm abs. or 5% rel. | 45 sec | ISO 12039, CTM-030 |
CO – Carbon monoxide | Electrochemical, with H2 compensation | 4 000ppm | 1ppm | ± 5ppm abs. or 5% rel. | 45 sec | ISO 12039, CTM-030 |
CO – Carbon monoxide | Electrochemical sensor | 20 000ppm | 1ppm | ± 5ppm abs. or 5% rel. | 45 sec | ISO 12039, CTM-030 |
CO – Carbon monoxide | Electrochemical, with H2 compensation | 20 000ppm | 1ppm | ± 5ppm abs. or 5% rel. | 45 sec | ISO 12039, CTM-030 |
CO – Carbon monoxide | Electrochemical sensor | 10% | 0.001% | ± 0.005% abs. or 5% rel. | 45 sec | ISO 12039, CTM-030 |
CO – Carbon monoxide | NDIR | 10% | 0.01% | ± 0.05% abs. or 5% rel. | 45 sec | EN 15058, Method 10 |
CO – Carbon monoxide | NDIR | 25% | 0.01% | ± 0.05% abs. or 5% rel. | 45 sec | EN 15058, Method 10 |
CO – Carbon monoxide | NDIR | 50% | 0.01% | ± 0.05% abs. or 5% rel. | 45 sec | EN 15058, Method 10 |
CO – Carbon monoxide | NDIR | 100% | 0.1% | ± 0.5% abs. or 5% rel. | 45 sec | EN 15058, Method 10 |
CO2 – Carbon dioxide | NDIR | 5% | 0.01% | ± 0.05% abs. or 5% rel. | 45 sec | ISO 12039, OTM-13 |
CO2 – Carbon dioxide | NDIR | 10% | 0.01% | ± 0.05% abs. or 5% rel. | 45 sec | ISO 12039, OTM-13 |
CO2 – Carbon dioxide | NDIR | 25% | 0.01% | ± 0.05% abs. or 5% rel. | 45 sec | ISO 12039, OTM-13 |
CO2 – Carbon dioxide | NDIR | 50% | 0.01% | ± 0.05% abs. or 5% rel. | 45 sec | ISO 12039, OTM-13 |
CO2 – Carbon dioxide | NDIR | 100% | 0.1% | ± 0.5% abs. or 5% rel. | 45 sec | ISO 12039, OTM-13 |
CH4 – Methane | NDIR | 1% | 0.01% | ± 0.05% abs. or 5% rel. | 45 sec | |
CH4 – Methane | NDIR | 5% | 0.01% | ± 0.05% abs. or 5% rel. | 45 sec | |
CH4 – Methane | NDIR | 10% | 0.01% | ± 0.05% abs. or 5% rel. | 45 sec | |
CH4 – Methane | NDIR | 25% | 0.01% | ± 0.05% abs. or 5% rel. | 45 sec | |
CH4 – Methane | NDIR | 50% | 0.01% | ± 0.05% abs. or 5% rel. | 45 sec | |
CH4 – Methane | NDIR | 100% | 0.1% | ± 0.5% abs. or 5% rel. | 45 sec | |
NO – Nitric oxide | Electrochemical sensor | 1 000ppm | 1ppm | ± 5ppm abs. or 5% rel. | 45 sec | CTM-022 |
NO – Nitric oxide | Electrochemical sensor | 5 000ppm | 1ppm | ± 5ppm abs. or 5% rel. | 45 sec | CTM-022 |
NO2 – Nitrogen dioxide | Electrochemical sensor | 1 000ppm | 1ppm | ± 5ppm abs. or 5% rel. | 60 sec | CTM-022 |
NO2 – Nitrogen dioxide | Electrochemical sensor | 4 000ppm | 1ppm | ± 5ppm abs. or 5% rel. | 60 sec | CTM-022 |
SO2 – Sulphur dioxide | Electrochemical sensor | 2 000ppm | 1ppm | ± 5ppm abs. or 5% rel. | 45 sec | |
SO2 – Sulphur dioxide | Electrochemical sensor | 5 000ppm | 1ppm | ± 5ppm abs. or 5% rel. | 45 sec | |
H2S – Hydrogen sulfide | Electrochemical sensor | 1 000ppm | 1ppm | ± 5ppm abs. or 5% rel. | 70 sec | |
H2S – Hydrogen sulfide | Electrochemical sensor | 10 000ppm | 1ppm | ± 5ppm abs. or 5% rel. | 45 sec | |
H2 – Hydrogen | Electrochemical sensor | 2 000ppm | 1ppm | ± 10ppm abs. or 5% rel. | 50 sec | |
H2 – Hydrogen | Electrochemical sensor | 20 000ppm | 1ppm | ± 10ppm abs. or 5% rel. | 70 sec | |
H2 – Hydrogen | Thermal Conductivity Detector | 10% | 0.1% | ± 0.5% abs. or 5% rel. | 45 sec | |
H2 – Hydrogen | Thermal Conductivity Detector | 25% | 0.1% | ± 0.5% abs. or 5% rel. | 45 sec | |
H2 – Hydrogen | Thermal Conductivity Detector | 50% | 0.1% | ± 0.5% abs. or 5% rel. | 45 sec | |
H2 – Hydrogen | Thermal Conductivity Detector | 100% | 0.1% | ± 0.5% abs. or 5% rel. | 45 sec | |
N2O – Nitrous oxide | NDIR | 2 000ppm | 1ppm | ± 10ppm abs. or 5% rel. | 45 sec | ISO 21258 |
N2O – Nitrous oxide | NDIR | 5 000ppm | 1ppm | ± 10ppm abs. or 5% rel. | 45 sec | ISO 21258 |
CHF3 – Fluoroform (Refrigerant R23) | NDIR | 2.5% | 0.01% | ± 0.05 abs. or 5% rel. | 45 sec | |
CL2 – Chlorine | Electrochemical sensor | 250ppm | 1ppm | ± 5ppm abs. or 5% rel. | 60 sec | |
VOC – Volatile Organic compounds | PID – Photo Ionization Detector | 100ppm | 1ppm | ± 5ppm abs. or 5% rel. | 120 sec | Method 21 |
VOC – Volatile Organic compounds | PID – Photo Ionization Detector | 1 000ppm | 1ppm | ± 5ppm abs. or 5% rel. | 120 sec | Method 21 |
6. Other measurements / calculated results
Variable | Method | Range | resolution | Accuracy | Time (T90) |
Tgas – gas temperature | K-type thermocouple | -50 ÷ 1000°C | 0.1°C | ± 2°C | 10 sec |
Tgas – gas temperature | S-type thermocouple | -50 ÷ 1500°C | 0.1°C | ± 2°C | 10 sec |
Tamb – boiler intake air temperature | PT500 resistive sensor | -50 ÷ 100°C | 0.1°C | ± 2°C | 10 sec |
Differential pressure | Silicon piezoresistive pressure sensor | -10hPa ÷ +40hPa | 1Pa (0.01hPa) | ± 2Pa abs. or 5% rel. | 10 sec |
Differential pressure for measurement of gas flow velocity | Silicon piezoresistive pressure sensor | -10hPa ÷ +20hPa | 0.1Pa (0.001hPa) | ± 2Pa abs. or 5% rel. | 10 sec |
Gas flow velocity | Indirect, with Pitot tube & pressure sensor | 1 ÷ 50m/s | 0.1m/s | 0.3m/s abs. or 5% rel. | 10 sec |
Lambda λ – excess air number | Calculated | 1 ÷ 10 | 0.01 | ± 5% rel. | 10 sec |
qA – stack loss | Calculated | 0 ÷ 100% | 0.1% | ± 5% rel. | 10 sec |
Eta η – combustion efficiency | Calculated | 0 ÷ 120% | 0.1% | ± 5% rel. | 10 sec |
Drawings
maMoS IP55
Main features
- IP55 cabinet for maMoS and MD3 provides better protection in harsh enviroment.
- Available with the same sensor and equipment configuration as regular maMoS.
- Build-in ventilation system (option).
- Cabinet available also with climate control module or without ventialtion.
- Single or dual filtration system for protection from toxic gasses. Filter can be used with various absorbent (e.g. from Purafil).
- Cabinet features high quality steel construction with glazed door.
Example configuration
Example configuration with AC module
Inside the cabinet
Cabinet parameters
Dimensions with air vents (W x H x D) | 92 cm * 60 cm * 30 cm | ||||
Dimensions with AC module (W x H x D) | 102 cm * 60 cm * 30 cm | ||||
Weight | 25,5kg cabinet + weight of the device | ||||
Door type |
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Color | Grey RAL 7035 | ||||
Installation type | Wall-mounted | ||||
Lock type | 3 points lock, 3mm double-bar | ||||
IP rating |
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Accessibility | Front | ||||
Operating conditions for analyser in IP55 cabinet with ventilation |
max. ambient temp. 35°C, out of direct sunlight | ||||
Storing temperature | 0°C ÷ 55°C | ||||
Ventilation fan |
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