|
Why the “air pump” and not the “peristaltic pump” sample extraction
system? |
|
Subject |
Aquacell "air pump" sampler |
Typical "peristaltic pump" sampler |
|
Sample tract |
12mm
intake increasing progressively to outlet - good blockage resistance |
9.5mm
|
|
Visibility of Sample tract |
Almost entirely visible so you can watch the sampling process taking
place. |
Much
of the sample tract is invisible. |
| Pump |
No
contact with sample media |
Sample media passes through pump. Sharp solids have the potential to
puncture the pump tube and disable the sampler. |
|
Sample Volume |
Absolutely consistent |
Variable with:
- Pump speed
- Supply voltage
- Lift height
- Degree of pump tube wear
- Temperature |
|
Sample media tolerance |
Operates OK on sewage sludge |
See
"Sample tract" above |
|
Maintenance |
Occasionally clean sample chamber |
Periodically replace sample tube |