SEMTECH-PPMD: Portable Particulate Measurement System
The SEMTECH-PPMD combines the Micro Proportional Sampling System and the Carousel Quartz Crystal Microbalance into a single unit, providing real time particulate mass.
- Features
- Specifications
- Accessories
- Options
- Proportional Sampling: The built-in partial flow dilution system eliminates the need for a CVS, while meeting EPA’s CFR40, part 1065 and ISO 16183 accuracy requirements.
- Multi-Crystal Design: With eight crystals available for mass measurement, the system can continuously operate for up to eight hours. Once a sample is collected on one crystal, the system automatically switches to the next available crystal, allowing crystals to stabilize between samples. Additionally, one crystal can be used to measure the ambient air and account for this background in the mass calculations.
- Highly Sensitive: With a crystal mass sensitivity of 100 Hz/µg, short sample times can be used for testing.
- Fast Results: With the PPMD post processor, results can be obtained within minutes of data collection, in lieu of the typical 24 hour turn-around time for batch processing from a gravimetric filter system.
- Low Maintenance: Crystal cleaning and filter changes are the only regular maintenance items, which are simplified with easy access.
- SEMTECH-DS Integration: The system is designed to be operated as a stand-alone device, or in conjunction with Sensors’ gaseous emissions analyzer, for a complete emissions measurement solution, that meets the EPA’s CFR40, part 1065 portable emissions measurement requirements.
| Warm up time: | 60 minutes at 20°C ambient |
| Sample flow rate: | 1 LPM |
| Data rate: | 1 Hz |
| Sensitivity: | 0.002 µg |
| Data storage: | up to 48 hours at 1 Hz data rate |
| Power requirement: | 12VDC, 20A during warm up, 10A at steady state |
| Operating temperature: | 0 to 40°C ambient |
| Storage temerature: | 0 to 60°C dry |
| Dimensions: | 56cm x 51cm x30 cm (HxWxD) |
| Weight: | 77 kg (170 lbs) |
| Data Transmission: | 1 RS232 serial port for connection to SEMTECH-DS 1 RS232 serial port for connection to the host computer Internal CAN network |
The PPMD comes complete with an Accessory Kit. Mouse over the part number for an image of the item. Replacement parts can be ordered through your SEMTECH sales representative.
Accessory Kit
Part Number 9296-055
Kit Includes:
- 1408-175 Case Foam Lined 22 x 16
- 2601-108 HEPA Filter (Qty 5)
- 2802-125 Neoprene Tubing (10')
- 2802-222 6mm Polyurethane Tubing (10')
- 2802-268 4mm Polyurethane Tubing (10')
- 5403-014 Phillips Screwdriver size 2
- 5403-015 12 Piece Allen Set
- 5403-016 7 Piece Wrench Set
- 5403-017 Needle Nose Pliers
- 5403-018 Phillips Screwdriver size 0
- 5403-019 Phillips Screwdriver size 1
- 5403-020 Mini Tubing Cutter
- 5403-021 Wire Cutting Pliers
- 7007-084 Oring size 028
- 7007-091 Oring size 009
- 7007-093 Oring size 1.6mmx4.1mm
- 7007-095 Oring size 1.6mmx10.1mm
- 7007-096 Oring size 017
- 9233-817 MPS Serial Cable
- 9233-818 Power Harness
- 9233-819 Serial Cable to DS
- 9233-840 TSI Flowmeter
- 2821-548 1/4" Fitting
- 2821-623 3/8" Fitting
- 2821-626 Reducing Union (1/2" x 3/8")
- 9280-056 Crystal Lid Assembly
- 1606-024 High Vacuum Grease
- 9233-816 Dual Toggle Switch Cable
- Micro Constant Dilution: For engines with high particulate emissions, a secondary constant dilution unit is built into the system.
- Humidifier Module: This external module provides humidified air for the bypass flow over the crystals, to condition them before and after sampling.
- Horizontal Mounting Kit: Enables sideways mounting of a PPMD with the optional constant dilution. This is not needed with the base unit.
- Dual Power Cable: Power cable specifically designed to provide power to both the SEMTECH-DS and the PPMD simultaneously.
