Thermo sent out a notification several months back that errors appearing to be hard drive failures were due to a software issue where the Bkg file was not purging properly and filling up the hard drive and choking the monitor. The message appears to be hard drive related because you can't write to the hard drive any more. We also had multiple hard drive changes. There have been other issues where they weren't sure of the cause and replaced the hard drive anyway. In this example, the Thermo tech got a message they didn't understand and replaced the hard drive as a conservative measure. The counting circuitry is fine, so just swap out Frankenstein's brain with another one until you get what you like.
We recently had a PM-12 where a detector replacement caused some form of reset and the message wasn't understood, so the hard drive was replaced. They seem to be pretty good guys, but you can tell they're still catching up to the new architecture. I really like the user interface with the PM-12 and SAM-12. Historically you had to diagnose monitor issues from behavioral symptoms and now these monitors will give you data files to support the diagnosis. Currently working with them to incorporate any of their learnings into our procedures as necessary for troubleshooting or enhanced settings. Work in progress... Glen Vickers Exelon Corp RP Technical Lead, CHP 815-216-2723 (work/cell) From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Monday, December 23, 2013 12:13 PM To: [email protected] Cc: [email protected] Subject: Re: Powernet: RE: Quick benchmarking question: Tool Monitors DC Cook employs two, SAM-12 monitors at each of our two, Restricted Area Exits. We also use SAM-11s for equipment releases in outlying areas such as our Rad Waste Handling Building (outside the Protected Area). We have had multiple hard drive failures on our SAM-12s. A recent upgrade to solid state hard drives have proven only slightly more reliable. We have also had about one door handle and/or door latching mechanism failure per year, over the years as well. We do constantly coach workers to close SAM doors with care. Dave Raye RP Operations General Supervisor Cook Nuclear Plant Bridgman, MI 49106 269-466-2803 Be careful how you practice, as you shall surely perfect it. From: "Barber, Jerry" <[email protected]<mailto:[email protected]>> To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>>, Date: 12/11/2013 08:21 AM Subject: Powernet: RE: Quick benchmarking question: Tool Monitors Sent by: [email protected]<mailto:[email protected]> ________________________________ This is an EXTERNAL email. STOP. THINK before you CLICK links or OPEN attachments. ________________________________ Robinson uses Canberra Cronos monitors. They work great and we have had no issues with them. From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of Johns, Alex M. Sent: Wednesday, December 11, 2013 6:58 AM To: [email protected]<mailto:[email protected]> Subject: Powernet: RE: Quick benchmarking question: Tool Monitors *** This is an EXTERNAL email. Exercise caution. DO NOT open attachments or click links from unknown senders or unexpected email. *** Salem still using SAM-9(s) and SAM-11(s). Replaced hinges on the 9(s). No other significant issues. Alex Johns RPS Salem Station 856-339-3909 [email protected]<mailto:[email protected]> From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of Holmes, Stephen J:(GINNA) Sent: Wednesday, December 11, 2013 6:48 AM To: [email protected]<mailto:[email protected]> Subject: Powernet: RE: Quick benchmarking question: Tool Monitors Ginna uses SAM-12; we've had them for a couple years now and haven't had any significant problems with them Stephen J Holmes, CHP, PE Sr. Plant Health Physicist, RE Ginna NPP [email protected]<mailto:[email protected]> 585-771-3577 From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of Kinmark, Michael L. Sent: Tuesday, December 10, 2013 2:01 PM To: [email protected]<mailto:[email protected]> Subject: Powernet: Quick benchmarking question: Tool Monitors Question from Columbia: What tool monitor do you currently use? SAM-12, Canberra Cronos, or something other? Any issues? Thank you in advance. Michael Kinmark HP Staff Advisor III Radiological Support Columbia Generating Station 509-377-2091 [email protected]<mailto:[email protected]> This e-mail and any attachments are confidential, may contain legal, professional or other privileged information, and are intended solely for the addressee. If you are not the intended recipient, do not use the information in this e-mail in any way, delete this e-mail and notify the sender. -EXCIP ________________________________ The information contained in this e-mail, including any attachment(s), is intended solely for use by the named addressee(s). If you are not the intended recipient, or a person designated as responsible for delivering such messages to the intended recipient, you are not authorized to disclose, copy, distribute or retain this message, in whole or in part, without written authorization from PSEG. This e-mail may contain proprietary, confidential or privileged information. If you have received this message in error, please notify the sender immediately. This notice is included in all e-mail messages leaving PSEG. Thank you for your cooperation.
