Biomerieux Previ Color Gram
Biomerieux · Model Previ Color Gram
Standardized result that is not user-dependent Finished product ready to read in as little as 5 minutes Assurance of quality – no worry of cross contamination Minimal hands-on time and clean up Reduces reagent use and waste Touchscreen interface for easy-handling of the system Level monitoring for waste and reagents to avoid spillover and staining issues Automated cleaning to help lessen troubleshooting issues Program memory to customize protocols based on samples Full traceability of reagents, users, maintenance, and slides Quick to load, push button carousel.
Key tips
- ·Run QC controls before trusting any repair - an analyzer that passes self-test can still report clinically wrong results.
- ·Rule out a reagent lot change before opening the instrument - it can look exactly like a hardware fault.
- ·Centrifuge rotors have a hard retirement age/cycle limit regardless of visible condition - don't eyeball it.
Typical Failure Modes
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
Reagent / paraffin transfer or handling fault
HighSymptoms: Stations not filling or draining, retort not filling (processor), transport arm mis-places baskets, error alarm halts the run.
Root cause: Worn pump / valve, a blocked line, a level-sensor fault, or a transport-drive / gripper fault.
Retort / chamber pressure or vacuum fault (processor)
MediumSymptoms: Pressure / vacuum not achieved, poor infiltration, seal alarm.
Root cause: Worn retort door seal, a vacuum / pressure-pump fault, or a valve.
Poor or inconsistent staining
MediumSymptoms: Slides over- / under-stained, uneven, station-time drift.
Root cause: Exhausted reagents, wrong programme, incorrect agitation, or a timing / arm fault.
Heater / paraffin-bath / oven fault
MediumSymptoms: Paraffin not molten or too hot, oven not at temperature, bath alarm.
Root cause: Heater or temperature-sensor fault.
Fume-extraction / carbon-filter fault
LowSymptoms: Reagent fumes in the room, filter-change overdue.
Root cause: Saturated carbon filter or a fan fault.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
Reagent / paraffin pump & valves
Class Periodic replacementRel. cost $$$R&R Difficult
Retort / reagent-vessel seals
Class Periodic replacementRel. cost $$R&R Fairly easy
Transport-arm drive / gripper (stainer)
Class Periodic replacementRel. cost $$$R&R Difficult
Bath / oven heater & temperature sensor
Class Major service partRel. cost $$R&R Moderate
Activated-carbon fume filter
Class Frequent wear itemRel. cost $R&R Easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Reagent / paraffin pump & valves | Periodic replacement | $$$ | Difficult |
| Retort / reagent-vessel seals | Periodic replacement | $$ | Fairly easy |
| Transport-arm drive / gripper (stainer) | Periodic replacement | $$$ | Difficult |
| Bath / oven heater & temperature sensor | Major service part | $$ | Moderate |
| Activated-carbon fume filter | Frequent wear item | $ | Easy |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
PM Checklist
Preventive-maintenance tasks typical of this equipment class. Perform to the manufacturer's procedure and your facility's policy - this is general reference, not a schedule for this specific unit.
- ·Daily QC controls run and reviewed
- ·Calibration verification per assay
- ·Routine cleaning and decontamination
- ·Scheduled reagent-path and pump-tubing maintenance
Error Codes
Extracted directly from this unit's own service manual.
WRONG ROTORThe stainer does not begin a cycle when you press RUN.
After you press RUN, make sure the slide carousel is properly loaded on the drive hub. After you verify that the carousel is correctly loaded, press RUN. If the display still shows WRONG ROTOR, there may be an internal problem. Check carousel magnets.
PRIMINGA reagent line will not prime, even after following the procedures.
Press the priming button while listening carefully for the sound of the pump operating. If you cannot hear the pump, there may be an internal problem, please contact your bioMérieux representative.
DRIVE PROBLEMThe stainer does not begin a cycle when you press RUN.
Check the stainer bowl to make sure there is no foreign material interfering with the rotation of the drive hub and carousel. Turn the hub or carousel by hand; it should turn freely. 1. Switch the stainer OFF, 2. Wait 10 to 20 seconds, 3. Switch power ON again and try again. Continued DRIVE PROBLEM display indicates an internal problem, please contact your bioMérieux representative.
ROTOR IMBALANCEThe stainer does not begin a cycle when you press RUN.
Make certain the rotor is balanced and that the carousel is seated correctly on the hub. Verify keyboard operation by observing the display while entering slide number settings. The settings should appear on the display as you press the intensity keys. 1. Switch the stainer OFF, 2. Wait 10 to 20 seconds, 3. Switch power ON again and try again. If the problem persists, please contact your bioMérieux representative.
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: QC / calibration failure across a channel or the whole system
- Run fresh controls at all levels and note which analytes fail.
- Confirm reagents are in date, correctly loaded, mixed and not bubbled.
- Run the photometer / lamp-energy check and replace the lamp if energy is low.
- Clean the sample and reagent probes, the mixers and the wash / cuvette-wash stations.
- Recalibrate the affected assay / ISE module and re-run QC.
Symptom: Sample or reagent probe clog / crash / short aspiration
- Inspect the probe for a bend or blockage and clear it (wire / sonicate per the manual).
- Run the fluidics prime and the probe-wash cycle.
- Check for a clot or fibrin in the sample and the liquid-level sensing.
- Verify probe positioning / alignment.
- Replace the probe if aspiration is still short.
Symptom: ISE electrolyte results biased or noisy / ISE calibration fails
- Run the ISE calibration and check the slope / drift against spec.
- Replace an ISE electrode or the reference that is at end of life.
- Check the ISE pinch valves and tubing for wear or air.
- Confirm the ISE standard packs are in date.
- Re-run ISE QC before releasing electrolyte results.
Symptom: High cuvette blanks / position-dependent results
- Run the cuvette blank / photometric check.
- Clean or replace worn / scratched cuvettes or the reaction segment.
- Check the cuvette-wash station nozzles and drying.
- Confirm the water / DI supply quality.
- Recalibrate and re-run QC.
Technical Specs
- Height
- 9.5 in
- Length
- 21 in
- Width
- 22 in
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Central / core laboratory
- Point-of-care testing stations
- Blood bank
- Microbiology lab
Documents & Manuals
Safety & Recalls
Synced live from the FDA openFDA API.
- RECALL
Potential risk of Quality Control failures and/or false resistant antibiotic results when testing isolates of Enterobacterales/Enterobacteriaceae species and/or Pseudomonas aeruginosa with the identified antibiotic formulations. Issue may lead to QC failure or false resistant results.
- RECALL
Potential for false resistant results for Colistin (cs02n) with multi-drug-resistant Pseudomonas aeruginosa and Acinetobacter baumannii complex used in specific cards
- RECALL
There is a potential for the occurrence of false positive OXSF results for some Staphylococcus aureus strains in conjunction with the VITEK 2 AST-P652 test card (ref. 421857, lot 8021232403). .
- RECALL
The recall has been initiated due to potential for overheating or a fire hazard associated with the Zebra LP2824 Plus printer PSU (power supply unit) located within the PREVI Isola instrument.
- RECALL
A shipment to Guadeloupe suffered a temperature excursions up to 47.8C, exceeding the acceptable limits. After detection of the issue, Global Supply Chain QA asked the bioMrieux distributor in Guadeloupe to put products in quarantine in July 2017; After several reminders, the distributor informed in November 2017 that products were delivered to customers.
- RECALL
Customer reports indicated an increase in the rate of non-detected MRSA in association with the VITEK 2 AST-P631 product.
- RECALL
The investigation demonstrated a high rate of very major errors (resistant isolates calling susceptible) with the VITEK 2 AST-GN colistin (cs01n) compared to agar dilution (the reference method used for cs01n development) and compared to broth-microdilution (recommended method by EUCAST/CLSI).
- RECALL
False susceptible results
- RECALL
The integrity of the product container may be compromised thereby exposing product to moisture which could lead to antibiotic degradation (loss of potency).
- RECALL
Potential performance issue on strain categorization.
- RECALL
Product Stability issues: The current shelf-life claims of the ETEST products are not supported by internal testing.
- RECALL
Product may lead to false susceptible results of Staphylococcus spp., Enterococcus spp., and S. agalactiae to Minocycline.
- RECALL
Product insert fails to identify performance limitation related to EUCAST breakpoints for Teicolplanin.
- RECALL
Due to the potential for reporting erroneous results for Piperacillin/Tazobactam; specifically false susceptible results.
- RECALL
The outer carton label and package insert for the recalled product incorrectly lists Streptococcus pneumoniae as an organism for intended use.
- RECALL
The products have a wrong expiration date on their labeling, 5 years instead of 2 years.
- RECALL
The firm has determined the product may fail to dispense the sample to the agar plate resulting in a "failure to dispense" in conjunction with urine specimens. This could lead to a "false" negative growth result.
- RECALL
The instrument may not dispense the specimen onto the pre-poured media resulting in a false negative result.
- RECALL
The piperacillin/tazobactam drug on the antimicrobial susceptibility cards is providing false susceptible and false resistant results for E. coli, as well as an additional 7 organisms; and the same drug is providing false resistant results for K. pneumoniae.
- RECALL
AMENDED REASON FOR RECALL: The piperacillin/tazobactam drug on the antimicrobial susceptibility cards is providing false susceptible and false resistant results for E. coli, as well as an additional 7 organisms; and the same drug is providing false resistant results for K. pneumoniae.
- RECALL
Some of the cards were stamped with an incorrect card code causing the system to read and report the cards incorrectly.
- RECALL
The cards were stamped with an incorrect card code that causes the system to read and analyze the cards incorrectly.
Troubleshoot this device with Bio
Describe a symptom or error code. Bio answers from this device's own documented error codes, failure modes, parts, and guides.
Ask Bio