At Palo Verde we don’t use HIS-20, were on Sentinel, but we have over the years see all of those issues with Sentinel.
1. I think a lot of these are battery issues. Marginal batteries seem to drop the 2000 back to pause. Then the worker is logged I but dosimeter is in pause. We also elected to turn off a lot of checks between the software and dosimeter that can be done during login, because they seem to effect the dosimeter in a similar manner, this leaves a dosimeter on but not logged in. We have a “Dumb” turnstile that checks that your SRD is turned on before allowing you into the RCA and again before entering containment to make sure they didn’t leave it in the dress-out area. 2. Same as 1. 3. Again battery issue. I see it a lot in multipacks, Those dosimeters are older and not part of the mainstream lot. Batteries don’t get changed as much. 4. See this when the worker is not paying attention to what they are doing during login. They leave it in the reader too long and it starts the logout process. We lengthened the pause time between screens and helps. The worker needs to keep focused on what they are doing. [cid:image003.png@01D3BC57.21A00C30] Jeffrey D. Norwood Health Physicist Sr., Performance Improvement 5801 South Wintersburg Road, Tonopah, AZ 85354-7529, M.S. 7848 Office 623.393.2635 Cell 602.376.7138 From: BJ Thompson [mailto:bj.thomp...@dominionenergy.com] Sent: Monday, March 12, 2018 9:55 AM To: powernet@HPSpowernet.org Cc: Tom Pastor Subject: [powernet] DMC-2000 Question USE CAUTION - EXTERNAL SENDER:(powernet-return-919-Jeffrey.Norwood=aps....@hpspowernet.org<mailto:powernet-return-919-Jeffrey.Norwood=aps....@hpspowernet.org>) Do not click on links or open attachments that are not expected. For questions or concerns, please email the APS Cyber Defense Center team at a...@apsc.com<mailto:a...@apsc.com> or contact the APS Helpdesk. ____________________________________________________ North Anna has a question for plants that use Canberra’s HIS-20 software and DMC-2000 electronic dosimeters. 1. Have you had any occurrence where the DMC-2000 has been found in PAUSE after being issued in HIS-20? 2. Have you had any occurrence where the DMC-2000 once issued has turned back to PAUSE without interfacing with a dosimeter reader? 3. Have you had any occurrence with the DMC-2000 losing contact with the wireless reader during the issuance or return process? 4. Have you had any occurrence during the issue process, the system issues then quickly returns the dosimeter? 5. If you have answered “yes” to any of these questions – what corrective measures have you put in place to prevent these events? Barbara J. Thompson North Anna Power Station 1022 Haley Drive Mineral, Va 23117 Superintendent Health Physics Technical Services bj.thomp...@dominionenergy.com<mailto:bj.thomp...@dominionenergy.com> Phone: 540-894-2638 ________________________________ CONFIDENTIALITY NOTICE: This electronic message contains information which may be legally confidential and or privileged and does not in any case represent a firm ENERGY COMMODITY bid or offer relating thereto which binds the sender without an additional express written confirmation to that effect. The information is intended solely for the individual or entity named above and access by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution, or use of the contents of this information is prohibited and may be unlawful. If you have received this electronic transmission in error, please reply immediately to the sender that you have received the message in error, and delete it. Thank you. --- NOTICE --- This message is for the designated recipient only and may contain confidential, privileged or proprietary information. If you have received it in error, please notify the sender immediately and delete the original and any copy or printout. Unintended recipients are prohibited from making any other use of this e-mail. Although we have taken reasonable precautions to ensure no viruses are present in this e-mail, we accept no liability for any loss or damage arising from the use of this e-mail or attachments, or for any delay or errors or omissions in the contents which result from e-mail transmission.
