HemoCue WBC User Manual (English)

Questions and Answers:

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Dalton JordanSep 5, 2025
What does LLL mean on HemoCue Measuring Instruments?
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  smithangelaSep 5, 2025
  The 'LLL' message on the HemoCue Measuring Instruments indicates that: 1. The measured value is below 0.3 x109/L (300/mm3, 300/µL). Results exceeding the LLL limit should be verified with a suitable laboratory method and be questioned as to the pathological condition of the patient. 2. The microcuvette is empty or not filled with sample. Use a new microcuvette, repeat the measurement, and ensure the microcuvette is adequately filled.
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Charlotte TaylorSep 4, 2025
What causes out-of-range measurements on control materials with HemoCue Measuring Instruments?
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  deborah54Sep 4, 2025
  If your control material measurements are consistently high or low, consider these possibilities: 1. Improper sampling technique. Use a new microcuvette and repeat the measurement. 2. Expired, damaged, or poorly stored microcuvettes. Check their expiration date and storage conditions. 3. Expired or improperly stored control material. Verify the expiration date and storage conditions. 4. Control material not properly mixed or not at room temperature. Ensure it’s mixed well and at the correct temperature. 5. The control material might not be suitable for the HemoCue WBC system.
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keith68Sep 3, 2025
Why are HemoCue Measuring Instruments results on patient samples higher or lower than expected?
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  Michele DixonSep 4, 2025
  Inaccurate readings on patient samples from the HemoCue Measuring Instruments can stem from: 1. Incorrect sampling technique. In this case, take a new microcuvette and repeat the measurement. 2. Expired, damaged, or improperly stored microcuvettes. Check the expiration date and storage conditions of your microcuvettes.
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andersoncharlesSep 2, 2025
What does it mean when the HemoCue Measuring Instruments display shows blank spaces?
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  Susan DavisSep 2, 2025
  If the display shows only blank spaces, here’s what you should check: 1. If you're using batteries, they likely need replacement. Turn off the analyzer and replace the six AA batteries. 2. If using AC power, verify that the correct power adapter is properly connected and functioning. If problems persist, the circuit board might be faulty.
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Brett HarrisonSep 1, 2025
What to do if there are no characters on the HemoCue Measuring Instruments display?
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  Nicholas BrooksSep 2, 2025
  If the display of your HemoCue Measuring Instruments is blank, it could be due to several reasons: 1. Ensure the power adapter is correctly connected to both the analyzer and the AC power supply. 2. If using battery power, replace the six AA batteries. 3. If the issue persists, the display may be faulty, requiring service. Please contact your local distributor.
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Austin BenjaminAug 31, 2025
What does error Err03 mean on HemoCue Measuring Instruments?
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  Joshua HarrisSep 1, 2025
  To resolve Err03, take a new microcuvette and repeat the measurement.
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Alexandra BowersAug 30, 2025
What does Err02 mean on HemoCue Measuring Instruments?
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  vriggsAug 31, 2025
  To resolve Err02, take a new microcuvette and repeat the measurement.
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Randall GarciaAug 29, 2025
What to do for Err33 on HemoCue Measuring Instruments?
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  John ColemanAug 29, 2025
  To fix Err33 on your HemoCue analyzer, take a new microcuvette, repeat the measurement, and ensure the microcuvette is filled with sample.
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sharon98Aug 29, 2025
What should I do if my HemoCue Measuring Instruments is showing Err62?
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  Thomas WillisAug 29, 2025
  If you encounter Err62 on your HemoCue Measuring Instruments: a. Turn off the analyzer, wait 30 seconds, and then turn it back on. b. Use a new microcuvette and repeat the measurement.
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Lacey JonesAug 28, 2025
How to resolve Err61 on HemoCue Measuring Instruments?
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  Courtney DuncanAug 28, 2025
  To address Err61 on your HemoCue device: a. Turn off the analyzer, wait 30 seconds, and turn it back on. b. Take a microcuvette and perform the measurement again.

HemoCue WBC Specifications

General

Sample Volume	10 µL
Operating Temperature	15 - 30 °C
Sample Type	Capillary, venous or arterial whole blood
Measurement Range	0.3 - 30 x 10^9/L
Analysis Time	3 minutes
Power Supply	AC adapter
Calibration	Factory calibrated, no user calibration required
Humidity	10-90% non-condensing
Storage Temperature	0 - 50 °C