MDLT-ONE

Micro Dilution Tunnel

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

Small footprint

Heated filter system and flow controllers installed in a single rack. Swivel connection of tunnel section to cabinet allows flexible installation.

Flow weighting (EPA-approved technology)

Allows user to collect PM on a single filter over all three phases of FTP by adjusting sampling flow rate over the filter to weight the filter face velocity over the three phase of the FTP based on weighting targets. This EPA-approved technology increases the measurement accuracy for meeting the upcoming CARB LEV III 1`mg/mile emission limit and reduces filter weighing cycles from three to one, eliminating manual checks and calculations.

Automatic filter changer

Increases testing efficiency, allowing a maximum of 28 tests to be run without manual intervention. This feature can be mounted in the main rack to keep equipment footprint small.

Automatic calibration software enhances accuracy and ease of use

The MDLT-ONE series performs automatic calibration by flowing air in-series through two venturi flow meters and correcting any difference to zero in the software. This can be included in an automated sequence within a test template.

Integrated Operating Platform

蓝鲸体育直播 ONE series systems employ a common use interface, 鈥溊毒ㄌ逵辈� ONE PLATFORM鈥� offering future expandability and ease of integration into test automation systems.

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Applications

PM Emission Measurement of All Engines

R&D Support of Engine and After Treatment System

MDLT-ONE R&D Support

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)

System outline
PM sampling method		Partial flow dilution method
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		銉籖eal-time control based on analog input of exhaust flow rate 銉籆ontrol based on learned pattern of exhaust rate
Required signal for gas sampling		Isolated analog signal (0 to 10 V)
Flow rate of diluted gas		25 to 80 L/min^*1 (under the condition of 20 掳C and 101.3 kPa)
Accuracy of dilution ratio		Within 卤 5 % (Confirmed by measuring CO鈧�) When dilution ratio=15 rate at 20 掳C and 101.3 kPa: 53 to 80 L/min
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		銉籑ain unit: Dilution-tunnel unit 銉籓peration unit: PC, monitor, keyboard and mouse (table is not included)
Utilities		銉籔urified air: for dilution gas, 400 to 700 kPa, oil free, at least 100 L/min (at 20 掳C and 101.3 kPa)
Power supply voltage and frequency		銉籑ain unit: 100/110/120/200/220/230/240 V AC, 50/60 Hz, single phase 銉籓peration unit: 100/110/120/200/220/230/240 V AC, 50/60 Hz, single phase
Power requirements		Main unit: Max. 3.0 kVA / Operation unit: Max. 0.5 kVA
Dimensions		銉籑ain unit: 570 (W) 脳 730 (D) 脳 1700 (H) mm 銉籗pace for operation unit: 900 (W) 脳 500 (D) mm (table is not included)
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		銉幌�70 mm type: actual PM sampling area 蠁60 mm, with back-up filter 銉幌�47 mm type: actual PM sampling area 蠁38.8 mm^1, with back-up filter^1
Operating conditions
Sampling Pressure		Between atmospheric pressure and up to 40 kPa Back pressure of exhaust line: Less than 1 kPa
Options
Filter auto-changer^*3		Changer for automatic replacement of PM filter (蠁 47 mm)
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 Conforms to IEEE802.3 (ISO880 2/3)
Conditioner for dilution air / Compressor

*1, For the filter face velocity in the regulations (less than 100 cm/s), the flow rate for the 蠁47 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 蓝鲸体育直播, when you order.