How to Calibrate Your ATP Device with CalCheck

Need to run a calibration check? Follow the steps below to verify everything is performing as expected.



  1. Description and Intended Use

    CalCheck is a reusable device recommended for verifying that EnSURE® Touch and SystemSURE Plus® luminometers continue to operate correctly and are within specifications. Calibration verification with CalCheck is performed at regular intervals,  as specified by user-defined quality procedures.

    When powered on, the CalCheck power button emits a 3-second green LED light, and the device remains powered on for 60 seconds, which is enough time to run a positive test. The negative test (i.e., empty chamber for EnSURE Touch or a powered-off CalCheck for SystemSURE Plus) can alert users to background instrument light leakage or rare sensor calibration errors.

  2. For EnSURE Touch Luminometers.


    2.1  Instructions

    Note: Do not twist or bend any part of the device, especially the black battery housing where the power button light is displayed.


  1. Turn on the EnSURE Touch.
  2. Tap the Calibration App icon:
  3. Follow the steps on the screen to initiate the calibration checks:
    1. Internal LED test (empty chamber)
    2. Negative test (empty chamber)

    3. Positive test (CalCheck on )

      Note: The power button will glow green to confirm activity. If the button glows red or remains dark, the battery may need to be replaced.

2.2 Interpretation of Results

Upon completion of the calibration tests, the results are automatically recorded in the instrument and will be synced to your SureTrend® account when connected to WiFi.


If CalCheck results are not within the ranges in Table 1, see step 3 "Troubleshooting" below.


  1. Troubleshooting

If you obtain results outside of the expected range, clean the CalCheck device and the luminometer reading chamber as described below and repeat the tests.

  1. CalCheck: Clean outside of the rod with a lint-free cloth containing isopropyl or ethyl alcohol. Allow the device to air dry.
  2. Luminometer: Clean the read chamber as follows:

a. Turn off the instrument.

b. Remove the plug at the bottom of the instrument with the supplied tool (or Allen wrench,             flat-head screwdriver or large coin).

c. Moisten a cotton swab or pipe cleaner with water or isopropanol and use it to clean the inside of the read chamber.

d. Allow the water or isopropanol to dry and replace the plug into the instrument. Do not overtighten the plug.


  1. Storage
  • Store CalCheck at 10 to 25 °C (50 to 77 °F) in the original packaging when not in use.
  • If CalCheck is exposed to extreme temperatures (e.g., direct sunlight, heat, refrigeration or frozen), allow the device to acclimate to ambient temperature (10 to 25 °C/50 to 77 °F) for 30 minutes before use.
  • Take care not to press the power button during storage, as this will shorten battery life.


Summary

Follow the steps above to complete a quick calibration check and ensure accurate performance.

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