The phx42 is designed to inform you whether you are attempting to operate without a filter. The phx42 is set to detect a certain vacuum and will not operate if this specific pressure is not met.
To calibrate your filter detection value
Run a self-check through the phxApp and follow the prompts using a .22-micron filter (LDAR#4236).
- Note on Filters
- Our .22-micron filter is recommended over the original 1-micron filter (LDAR#25) as it provides additional filtration to increase the reliability of our software’s removal detection feature. The .22-micron filter also distributes accumulated debris more effectively around the filter surface, whereas the original filter allowed contaminants to pile up on the filter in a way which would block the sample flow quicker.
- If using the 1-micron filter, please follow the procedure below:
- Our .22-micron filter is recommended over the original 1-micron filter (LDAR#25) as it provides additional filtration to increase the reliability of our software’s removal detection feature. The .22-micron filter also distributes accumulated debris more effectively around the filter surface, whereas the original filter allowed contaminants to pile up on the filter in a way which would block the sample flow quicker.
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Step 1 |
Confirm with Support your phx42 units have been properly set for two-filter operation. |
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Step 2 |
Run a self-check through the phxApp and follow the on-screen prompts for the filter settings using two filters. |
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Daily Routine |
Run self-check with two probe filters. There is no need to reset the filters again until you have a troubleshooting issue. |
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Troubleshooting |
1. If you receive the “Feels like you removed my filter” message, perform a probe integrity inspection and… 2. Run a self-check through the phxApp and follow the on-screen prompts for filter setting. When prompted, remove BOTH filters at the same time. |
When to calibrate your filter detection value
There are three times you should recalibrate your filter detection value:
- If you see the error: “Feels like you just removed my filter. Please give me a fresh filter so we can get back to work.”
- If you notice the pump DOES NOT turn off when replacing the filter throughout the day.
- At a minimum, once per month if you routinely use Cal5.0 for daily calibrations.
Responding to a failed filter calibration
If you are unable to calibrate your filter, do a probe integrity inspection (see procedure). Report an issue, including the results of the probe integrity inspection in the comments section.