Windrow Manager
Sampling
Equipment
Sampling equipment includes a field sampling probe and armored iPAQ Pocket PC that automatically stores the temperature and oxygen samples in the field. The data is then downloaded directly to the Windrow Manager desktop software, eliminating the need for writing and data entry. Probes are available for sampling temperature and oxygen, or temperature only.
GMT has made improvements to the sampling probe to make it easier to use and more robust in the field. The new probe has a two sturdy handle grips to make insertion and carrying the probe more convenient. We also eliminated the separate DAF module and incorporated the electronics into a single enclosure on the probe. We offer a model with Bluetooth wireless connectivity to the Pocket PC in addition to the standard hard wired versions. Oxygen models use a new hydrophobic filter design, which protects the O2 sensor and reduces the chance of sensor failure. We also expect to have a compost moisture/temperature model available soon.
Sampling Equipment Specifications
| Models |
Temperature, Dual-depth Temp, and Temp/Oxygen |
| Shaft |
½"-diameter 316 stainless steel 40” overall length |
| Head |
Waterproof impact-resistant high-visibility plastic |
| Oxygen Sensor |
0-25% Oxygen +/- 1% (field replaceable with ~2 year life) |
| Temperature range |
0°C to 100°C +/– 1°C |
| Data Acquisition Capacity |
3 channel analog with serial com to Pocket PC |
| Pocket PC |
iPAQ 2210 or equivalent with serial port |
| Armored Case |
Waterproof impact-resistant case for Pocket PC |
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Diagram: How It Works

The Sampling Probe
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