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projects:lasercutterfilterpdmonitor
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Table of Contents
Laser Cutter Exhaust Filter Pressure Drop Monitor
Purpose
- Monitor the performance and effectiveness of filters
- Determine end of life for filter media
- Help determine when to order new filters
History
- Built/tested 11/25/18
- Installed 12/09/18
Readings
| Date | Stage 1 PD | Stage 2 PD | Stage 3 PD |
|---|---|---|---|
| 12/12/18 | 0.40 | 2.15 | 0.90 |
| 12/15/18 | 0.00 | 0.00 | 0.00 |
All values measured in inches of water column (in.w.c.)
Measurements include pressure sensor correction factors (Stg1=-0.26, Stg2=-0.28, Stg3=-0.24)
Design/Construction
- Designed/built by BrantH
- Uses three differential pressure transducers, 5 VDC, 20 mA, American Science & Surplus #46251P2
- Arduino Uno v.3 with code borrowed from various sources
- Custom shield (a very crappy perforated board with several wire/solder connections)
- Scrap metal enclosure box is a salvaged air conditioner relay box from Brant's attic
projects/lasercutterfilterpdmonitor.1544887646.txt.gz · Last modified: 2018/12/15 15:27 by branth
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