NeuroMetrix NC-stat DPNCheck Reference Manual

Troubleshooting
Display Light Description Possible Causes
Data quality issue • Incorrect limb setting on device.
Lb
Pn
Data quality issue
• Adequate signal could not be
recorded.
Pr
• Insufficient gel on probes.
Stimulation issue
• Poor contact of probes
with skin.
• Inadequate skin preparation in
probe contact area.
• Probe movement during test.
• Gel smeared between the probes.
Sn Biosensor • Biosensor disconnected during
disconnected test.
during test
Sn
Data quality issue
• Biosensor backing not removed.
• Incomplete biosensor contact.
• Skin in biosensor contact area
inadequately prepared.
Ec
Data quality issue • Signal contamination due to
patient movement or excessive
muscle contraction.
Ec
Data quality issue • Biosensor backing not removed.
o C
Patient ankle cold • Temperature detector field of
view obstructed.
• Patient's ankle temperature <23°C.
Lo
Low battery • Battery is low.
Hd
Device hardware issue
• Device hardware issue.
Ub
Excessive biosensor
• Excessive biosensor reuse
reuse detected.
detected.
Device is disabled
• Excessive repeat testing.
Always remember to perform the test away from electrical equipment that may cause interference.
If you continue to experience issues, please call Customer Service at (888) 786-7287.
NEUROMetrix
®
4 B Gill Street, Woburn, MA 01801
(888) 786-7287 www.neurometrix.com
Solution
1. Ensure that the limb setting on the device is correct.
2. If incorrect, re-select the limb on the device by
pressing the button down for 1-2 seconds until
correct limb is selected (l = left; r = right).
3. Retest.
1. Confirm placement and retest.
1. Re-do skin preparation and device
placement.
• Clean probes and re-apply gel.
• Vigorously scrub the ankle area.
• Reposition the device on the patient with
firm pressure to both probes and on biosensor.
2. Retest with constant force to limit device
movement during test.
1. Re-insert biosensor with tail traces
facing outward.
• Entire biosensor tail must be inserted.
2. If problem persists, replace biosensor.
1. Remove biosensor backing and retest.
• Check for good contact on both sides of
the foam.
2. If problem persists, re-prepare skin and
replace with new biosensor.
3. Retest.
1. Confirm that the patient is relaxing leg muscles.
2. Reposition patient if necessary.
3. Retest.
1. Remove biosensor backing and retest.
1. Ensure that tester's hand does not obstruct
temperature detector.
2. Warm patient's lower leg by:
• putting a sock on and elevating the leg.
- If unsuccessful:
º instruct the patient to put on their
shoes and socks then walk around for
1-2 minutes if able.
OR
º wrap the patient's lower leg and ankle
with a blanket or heating pad.
OR
º briskly rub the patient's lower ankle.
(Note: Although it is not an ideal approach,
this technique can be used if the tester is
in a hurry.)
3. Retest.
1. Replace battery.
1. Contact Customer Service.
1. Contact Customer Service.
© 2021 NeuroMetrix, Inc. All Rights Reserved. PN2203591 Rev. E
NC-stat DPNCheck
®
Reference Guide
• Device Use
• Testing Protocol
• Test Results
• Troubleshooting
NEUROMetrix
®
®