MDLT-ONE
Übersicht
The MDLT-ONE is designed to sample particulate emissions using the partial flow dilution method. A small portion of the total exhaust is diluted with HEPA* filtered air to create a constant flow rate through particulate filters to collect Particulate Matter (PM). Compliant to the latest regulations, the new MDLT-ONE is very compact and offers faster response by the use of high precision venturi flow meters and a piezo actuated valve.
*HEPA: High Efficiency Particulate Air
Merkmale
Small package
Heated filter system and flow controllers installed in a single rack. Swivel connection of tunnel section to cabinet allows flexible installation. Auto filter changer* can also be mounted in the main rack for space efficiency.
Automatic calibration software enhances accuracy and ease of use
The MDLT-ONE series performs automatic calibration by flowing air in-series through the two venturi flow meters and correcting any difference to zero in the software. This can be included into an automated sequence within a test template.
Integrated Operating Platform
HORIBA ONE series systems employ a common use interface, “HORIBA ONE PLATFORM” offering future expandability and ease of integration into Test Automation Systems.
Applications
PM Emission Measurement of All Engines
R&D Support of Engine and After Treatment System
Complies with worldwide emissions regulations
ISO-16183 | EU: Euro VI (HDV) | US: 40 CFR Part 1065/1066 |
Japan: Post new long term | EU: Stage IV / V (NRMM) |
Hergestellt von HORIBA
Spezifikationen
System outline
PM sampling method | Partial flow dilution method |
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Control modes for dilution | Proportional sampling mode (Const. split ratio)/ Fixed dilution ratio mode (Const. dilution ratio)/ Fixed flow rate mode (Manual control) |
Control methods for dilution |
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Required signal for gas sampling | Isolated analog signal (0 to 10 V) |
Flow rate of diluted gas | 25 to 80L/min※1(under the condition of 20 °C and 101.3 kPa) |
Accuracy of dilution ratio | Within ± 5 % (excluding the system with AFIC) |
PM mass calculation※2 | PM mass (in g/test or g/kWh) can be calculated and saved, based on integrated values of flow rated and dilution ratio. |
Configurations
System configuration |
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Utilities | Purified air: for dilution gas, 400 to 700 kPa, oil free, at least 100 L/min (at 20 °C and 101.3 kPa) |
Power supply voltage and frequency |
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Power requirements | Main unit: Max. 3.0 kVA / Operation unit: Max. 0.5 kVA |
Dimensions |
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Mass | Main unit: Approx. 300 kg (excluding operation unit) |
Number of filter lines | Max. 6 lines (5 for sample, 1 for bypass) |
Type of filter holder |
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Operating conditions
Sampling Pressure | Between atmospheric pressure and up to 40 kPa Back pressure of exhaust line: Less than 1 kPa |
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Options
Filter auto-changer※3 | Changer for automatic replacement of PM filter (φ 47 mm), both single-filter method and multi-filter method are available. |
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Valve switching | Additional air valve before filter (Replacement of sampling filter on bypass mode) |
HOST interface※3 | LAN communication using a 10 Base T port |
Conditioner for dilution air / Compressor | |
*1, For the filter face velocity in the regulations (less than 100 cm/s), the flow rate for the φ47 mm filter must be 65 standard L/min.
*2, Input the amount of PM collected on filter to calculate PM mass. It is necessary to input engine output (kW) to calculate the PM mass engine output (g/kWh).
*3, Please contact HORIBA, when you order.