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Post by fhdbiomed on Jul 1, 2024 20:50:01 GMT
2008T W/BiBag - When Trying to Calibrate confirmation cell and the condo won't go above 11.887 on my 90XL meter and then gives me a error message, I've calibrated everything to do with conductivity including BC volume, acid/Bic pumps, Dialysate cell/Bicarb cell. All pressures are good. When I checked the BC Volume it was putting out 60.1mL instead of the 60.8mL that is written on the BC. I changed the both diaphragms and was still getting 60.1 mL so I changed the calibration to 60.1 and then my Conductivity wouldn't go above 12.8-12.9 mS so I changed the BC Volume back to 60.8 and now my Condo won't go above 13.2 in Dialysis and when calibrating the Dialysate Cell it doesn't go above 13.32. I'm thinking it could maybe be a Condo/Temp Cell or CFS #10. Just wanted to check on here to see if anyone has ever come across anything like this before I start switching out anymore parts?
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Post by dave74 on Jul 2, 2024 0:00:55 GMT
Is it possible you made messed things up when you changed the balance chamber membranes? Low conductivity as you describe is a typical symptom of a leaking balance chamber membrane.
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Post by The Bluestar Whisperer on Jul 2, 2024 14:42:44 GMT
If your display condo is in agreement with your 90XL then your sensor is likely good. Did you remove any wiring or tubing while changing the membranes that may have been reversed? I assume no flow errors?
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Post by fhdbiomed on Jul 2, 2024 15:33:46 GMT
Is it possible you made messed things up when you changed the balance chamber membranes? Low conductivity as you describe is a typical symptom of a leaking balance chamber membrane. I don't believe so, it's putting out the same volume that it was before I changed them |
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Post by fhdbiomed on Jul 2, 2024 15:34:49 GMT
If your display condo is in agreement with your 90XL then your sensor is likely good. Did you remove any wiring or tubing while changing the membranes that may have been reversed? I assume no flow errors? No flow errors and I labeled all tubing and wires before removing the BC |
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Post by dave74 on Jul 2, 2024 15:45:11 GMT
Just a reminder that changing the balance chamber volume may bring the conductivity to the desired value, but you might be affecting the accuracy of the fluid removal system.
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Post by The Bluestar Whisperer on Jul 2, 2024 15:48:08 GMT
It seems strange that you made it through the other calibrations with normal conductivity being that you need to achieve 15.0 mS for the dialysate cell itself and now you are getting much lower. Based off of the numbers you are getting it sounds like you may be missing bicarb. What was the order you did things in?
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Post by The Bluestar Whisperer on Jul 2, 2024 16:57:35 GMT
Using pre-mixed (jug) concentrates;
1) Verify loading pressure. 24psi cycling no less than 10psi (If adjusted even 1psi you MUST recalibrate bicarb cell)
2) Verify acid pump volume (PM 4.3.0/Debug 1)
3) Verify bicarb pump
4) Verify Balancing chamber volume
5) Must be BC
- Test membranes (TS guide 3.0.0)
- Check that VERR = 0 (Debug 1 means no bad coils)
- Test for valve stuck open
- Verify #9
- Rinse machine for at least 5 mins, turn machine off WHILE STILL RINSING
- Power on in service mode
- Diagnostics, then valve leak test
- Run IOS (Integrity Of System) first, then valves in the order they appear
- Perform leak test in Diagnostic mode
- Test for valve stuck closed (TS F7.0.0)
Also, through my experience, I would not recommend calibrating either the acid or bicarb pumps unless you absolutely have to, it can throw a good running machine completely out of whack. That is why we CHECK them during our PMs. If you feel like the springs have worn some, that will absolutely affect the conductivity. Simply replacing springs will take the pump back to its original volume that it was calibrated at, providing the pump itself is good.
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