United States Nuclear Regulatory Commission - Protecting People and the Environment

INOVISION

Radiation Measurements 6045 Cochran Road
Cleveland OH 44139
Phone: 440 248-9300
FAX: 440-349-2307
www.inovision.com
www.surveymeters.com



To: Document Control Desk, U.S. Nuclear Regulatory Commission
From: Inovision Radiation Measurements

Date: July 11, 2001

Re: 10 CFR Part 21 Report (Follow-up to Interim Report submitted May 11, 2001)

Component containing defect: Firmware in Type IIA 960 Systems with a Real Time Clock (RTC) integrated circuit, programmed for use in pulse counting applications, and equipped with the following controller modules:

  • Model 960CD-220 (P/N 960CD-220-10)
  • Model 960CD-221 (P/N 960CD-221-10)
  • Model 960CD-223 (P/N 960CD-223-10)

Monitors utilizing ionization chamber detectors are not affected.

The above controllers were equipped with Real Timer Clock and additional firmware to control the RTC.

Formerly Victoreen and Keithley Radiation Measurements

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