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Survey Meters: Calibration or Repair

Learn about calibration and repair options for radiation survey meters.

Radiation survey meters must be calibrated annually or when they undergo a major repair.

Never use a meter that has not been calibrated or is not working properly. Label meters that are not in service: "Out of service. Do not use."

  • Follow the steps below to keep your meters in good working order.

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Calibration service

Environment, Health & Safety (EH&S) will notify you when your meter is due for calibration.

Meters can be calibrated at the EH&S Services Lab or you can send them to an off-campus vendor. EH&S calibration service is typically less expensive than what commercial vendors charge.

Calibration on campus:

  • Ensure the meter is not contaminated. If you think your meter is contaminated, contact EH&S Radiation Safety, (858) 534-6418.
  • Drop the meter off at the EH&S Services Lab:
    • University Center 301-B, corner of Myers and Gilman Drive,
      adjacent to Parking Lot 408 (find it on UCSD's MapLink)
  • Provide an index number to be charged.
  • Typical wait time is 3 days.
  • Loaner meters are available on a first come, first served basis.
  • EH&S will also inspect the meter. If it needs repair in addition to calibration, EH&S will contact you.
  • Calibrated meters are returned with a sticker listing the meter's efficiency for measuring certain isotopes.

Calibration by an off-campus vendor:

  • Ensure the meter is not contaminated. If you think your meter is contaminated, contact EH&S Radiation Safety, (858) 534-6418.
  • When you send your meter to an off-campus vendor for calibration, it will be returned with a calibration certificate.
  • Mail or fax a copy of the certificate to the EH&S Services Lab:
    • Mail Code: 0035
    • Fax: (858) 822-5524

Minor repairs

Meters can be repaired at the EH&S Services Lab for the cost of parts and labor, or you can send them to an off-campus vendor.

Repair on campus:

  • Ensure the meter is not contaminated. If you think your meter is contaminated, contact EH&S Radiation Safety, (858) 822-2494.
  • Provide an index number to be charged.
  • Drop the meter off at the EH&S Services Lab:
    • University Center 301-B, corner of Myers and Gilman Drive,
      adjacent to Parking Lot 408 (find it on UCSD's MapLink)
  • Typical repair time is 3 to 5 days.
  • Loaner meters are available on a first come, first served basis.
  • EH&S will contact you if the meter requires major repairs and must be returned to the manufacturer.
  • The meter will be recalibrated if the type of repair requires it.

Repair by an off-campus vendor:

  • Ensure the meter is not contaminated. If you think your meter is contaminated, contact EH&S Radiation Safety, (858) 822-2494.
  • Send your meter to an off-campus vendor.
  • Loaner meters are available from the EH&S Services Lab on a first come, first served basis.
  • If the meter is returned with a new calibration certificate, mail or fax a copy of the certificate to the EH&S Services Lab:
    • Mail Code: 0035
    • Fax: (858) 822-5524

Major repairs

Send meters to the manufacturer for major repairs.

The EH&S Services Lab, located at University Center 301-B, has a library of manufacturer manuals and catalogs for radiation detection instruments if you need more information.

  • Ensure the meter is not contaminated before it is shipped for repair. If you think your meter is contaminated, contact EH&S Radiation Safety, (858) 534-6418.
  • Typical wait time is 3 days.
  • Loaner meters are available on a first come, first served basis.
  • Major repairs to a meter require recalibration. Make sure you receive a calibration certificate when the meter is returned.
    • Mail or fax a copy of the certificate to the EH&S Services Lab at:
      • Mail Code: 0035
      • Fax: (858) 822-5524

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Notice: Refer to the Radiation Safety Manual (PDF) (Word file) for a detailed description of UCSD's radiation safety program.