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What This Guide Helps With
Use this guide when an approved concentrate, solution, or disposable is not recognized because of selection, connection, compatibility, positioning, or detection issues.
Step-by-Step Troubleshooting
1. Protect the Patient
Do not begin or continue dialysis if the required concentrate, solution, or disposable cannot be reliably recognized.
Use another verified machine or correct the setup before treatment proceeds.
Expected outcome: Patient treatment does not proceed with an unverified fluid or disposable configuration.
2. Confirm What Is Not Being Detected
Identify the specific item involved and determine whether:
- It is never recognized
- Recognition is intermittent
- Recognition is lost when moved
- The issue occurs with one item only
- Multiple approved items fail
- The machine displays a specific message
Record the exact message.
Expected outcome: The affected item and pattern of failure are clearly identified.
3. Verify the Correct Approved Item
Confirm that the concentrate, solution, or disposable is appropriate for the intended SURDIAL X setup and treatment.
Check labeling and packaging for:
- Correct product
- Correct intended use
- Obvious damage
- Contamination
- Improper storage evidence
- Expired or otherwise unsuitable product according to facility policy
Do not substitute unapproved products.
Expected outcome: The correct approved item is being used.
4. Inspect Physical Installation and Connections
Verify that the item is fully installed in its normal operating position.
Check for:
- Loose or incomplete connection
- Incorrect orientation
- Twisted or kinked tubing
- Misaligned disposable component
- Connector damage
- Fluid or residue on accessible sensing surfaces
Expected outcome: The item is correctly seated and connected without visible damage.
5. Inspect Accessible Detection Areas
Examine accessible sensor, holder, connector, or detection surfaces for contamination, moisture, residue, or obstruction.
Clean only according to approved procedures.
Do not modify sensors, magnets, tags, switches, or interlocks to force recognition.
Expected outcome: The detection area is clean, dry, and unobstructed.
6. Test a Known-Good Approved Item
When clinically and technically appropriate, substitute another known-good approved concentrate container, solution source, or disposable of the correct type.
Observe whether recognition is restored.
Expected outcome: If the replacement is recognized normally, the original item is isolated as the cause and troubleshooting can stop after verification.
7. Check Configuration and Selection
Verify that machine setup selections match the installed item and intended therapy.
Do not enter unauthorized configuration menus or alter service-level settings.
If a prescription-related selection is involved, have qualified clinical staff verify it.
Expected outcome: The selected machine configuration matches the installed approved product.
8. Perform Final Functional Verification
Repeat the normal preparation sequence and confirm:
- The item remains recognized
- Required fluid preparation proceeds normally
- No related alarm recurs
- Applicable pre-treatment tests pass
Expected outcome: Recognition is stable through preparation and verification. Troubleshooting can stop.
If the Problem Persists
If compatibility, installation, connectors, sensing areas, approved substitutions, and configuration have been verified but recognition still fails, common external causes have been ruled out.
Possible remaining categories include internal sensing, connector circuitry, detection hardware, software, or service-level configuration. Do not bypass recognition systems or simulate the presence of a disposable or solution.
The device should be:
- Removed from service
- Labeled Out of Service
- Sent for repair or bench evaluation
- Evaluated using appropriate Nipro documentation and approved test equipment
- Repaired or configured only by qualified personnel
Confirm normal recognition and all applicable preparation checks before returning the machine to service. Knowing when to stop external troubleshooting is proper troubleshooting.
Clinical Use Tip
Never defeat a recognition feature just to keep treatment moving; first verify that the correct approved concentrate, solution, or disposable is actually installed.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Dialysis staff reported the SURDIAL X would not recognize the connected concentrate during setup."
Cause
What was observed during troubleshooting.
Example:
"Clinical Engineering found the concentrate connector was not fully engaged at the machine connection."
Resolution
What action was taken.
Example:
"Clinical Engineering reseated the connection, repeated preparation, verified stable concentrate recognition and required checks, and returned the machine to service."
Helpful Details to Include (If Known)
- Exact item not detected
- Exact machine message
- Product type and condition
- Connector condition
- Installation or orientation observed
- Sensing-area cleanliness
- Known-good substitution result
- Configuration observed
- Results before and after correction
- Final machine status
Final Thought
Recognition failures are often caused by the item, connection, or installation rather than internal electronics. Verify compatibility and physical setup first, never bypass detection systems, and escalate unresolved faults with clear documentation.
That is successful troubleshooting.