SEMTECH Filter System

Mouse over image to zoom in

The SEMTECH Filter System is a portable gravimetric sampling system used to measure the mass of exhaust particulates. A cyclonic separator removes coarse particles upstream of the 47mm filters. The system can be completely operated with the easy-to-use interface panel, allowing for the selection of one of three fiters, or a bypass line. The front panel door allows for easy access to change the filter elements. Power is provided for a heated sample line. Meets US EPA 1065 measurement criteria. Can be used either on-board or in a test cell.

Features
Specifications
Accessories
Options
Resources

1065 Compliant:The SEMTECH Filter System is designed to meet the sampling requirements and recommendations of CFR40 part 1065 for both in-use and test cell applications.

Cyclonic Separator: The exhaust sample first passes through a heated cyclonic separator to remove coarse elements prior to passing through the filter elements.

Three Filter Paths: The system contains three, 47mm diameter filter holders. The system can be set to automatically switch between these filters and the bypass line, in accordance with pre-set test conditions. Pneumatic ball valves and downstream isolation solenoids are used to select the desired flow path.

Low Maintenance: The unit was designed with an easy access door to remove the filter holders and replace the filter elements. Other access panels enable easy removal of the cyclone and fuse panel.

Easy Operation:The built-in display panel shows all of the information needed to manually operate the unit. Temperature settings, flow settings and status indicators are all clearly defined and user configurable.

Ambient conditions:	0°C to 45°C, non-condensing
Operating temperature:	47°C ± 5°C
Storage temperature:	-40°C to 60°C
Sample flow rate:
Quartz or glass fiber filters:	10 - 40 SLPM
Teflo filters:	10 - 30 SLPM
Warm up time:	40 minutes at 20°C ambient
Power requirement:	12VDC, 30A during warm up, 15A at steady state
Dimensions:	80cm x 36cm x 34cm (HxWxD)
Weight:	48.2 kg (106 lbs)
Communications:	RS232 and CAN
Cyclone Specifications
Material:	Teflon Coated Aluminum
Dimensions:	16" x 13 7/8" x 3 1/2"
Inlet:	1 1/2" OD
Weight:	2.7 kg (6 lbs)
Filter Specifications
Element diameter:	47mm
Holder material:	304 stainless steel
Height:	108mm
Max outer diameter:	73mm
Inlet and outlet diameter:	1/2" FNPT
Weight:	1 kg (2.1) lbs

The Filter System comes complete with the following accessories:

12 VDC power supply (120VAC input or 220VAC input)
Power lead

Host PC software For Integration with SEMTECH-DS: Allows for remote user interface.
RS232 Cable: Required to use the remote user interface.
Heated Line: A custom designed,self regulating, heated sample line carries the sample either directly from the exhaust, or from a dilution system, to the cyclone inlet. The 1/2” stainless steel line is powered from the Filter System.