At STP we have SAIC PDE-4s and PDE-5s with the extremity probes as well as a set of DMC-2000s with the IMUX. The SAIC System has a 100' antenna cable that attaches to the outside of the diving suit; we have not had a problem with signal loss. We use Viewpoint to monitor the divers. We have a windows based program to set up and calibrate the PDE-4s. We rarely dive, so the equipment doesn't get used much and doesn't wear out.
John Diehl, CHP STPNOC Health Physics 361-972-8545 From: Powernet <powernet-boun...@hpspowernet.org> On Behalf Of Vickers, Glen:(Exelon Nuclear) via Powernet Sent: Friday, August 23, 2019 2:05 PM To: 'powernet@hpspowernet.org' <powernet@hpspowernet.org>; Creamer, Charles E <cecrea...@tva.gov> Cc: Vickers, Glen:(Exelon Nuclear) <glen.vick...@exeloncorp.com>; Richard S LaBurn <richard.lab...@dteenergy.com>; Elsener, Ryan A:(Exelon Nuclear) <ryan.else...@exeloncorp.com> Subject: Re: [Powernet] Diving Remote Monitoring **THIS EMAIL IS FROM AN EXTERNAL SENDER OUTSIDE OF THE STPNOC NETWORK. BE CAUTIOUS ABOUT CLICKING LINKS OR OPENING ATTACHMENTS FROM UNKNOWN SOURCES. DO NOT PROVIDE PERSONAL INFORMATION SUCH AS SS#, USER ID/PASSWORD, ETC.** Exactly out experience as was worried about rf signal reduction in water over longer distance bs the old wired system. I think weve changed forever and no longer need any dmc2000 units Glen Vickers, CHP Exelon RP Technical Lead 815-216-2723 work/cell ________________________________ From: Creamer, Charles E <cecrea...@tva.gov<mailto:cecrea...@tva.gov>> Sent: Friday, August 23, 2019 1:59:27 PM To: 'powernet@hpspowernet.org' <powernet@hpspowernet.org<mailto:powernet@hpspowernet.org>>; Vickers, Glen:(Exelon Nuclear) <glen.vick...@exeloncorp.com<mailto:glen.vick...@exeloncorp.com>> Cc: Elsener, Ryan A:(Exelon Nuclear) <ryan.else...@exeloncorp.com<mailto:ryan.else...@exeloncorp.com>>; Richard S LaBurn <richard.lab...@dteenergy.com<mailto:richard.lab...@dteenergy.com>> Subject: RE: Diving Remote Monitoring We also used the AWM and active dive antenna. Used the DMC3000 and had great coverage. Did a few weeks of diving in the equipment pit for an EPU outage dryer cut up and works great. Much better than the old iMUX. Was getting 4-8 second response on each dosimeter as compared to 30-40 seconds on older system. No lost contacts, no wires, no imux to dig into the divers. Was very skeptical at beginning of the outage and would hate to go back to the old system. The divers and techs covering them really liked it From: Powernet <powernet-boun...@hpspowernet.org<mailto:powernet-boun...@hpspowernet.org>> On Behalf Of Elsener, Ryan A:(Exelon Nuclear) via Powernet Sent: Friday, August 23, 2019 11:44 AM To: Vickers, Glen:(Exelon Nuclear) <glen.vick...@exeloncorp.com<mailto:glen.vick...@exeloncorp.com>>; powernet@hpspowernet.org<mailto:powernet@hpspowernet.org> Cc: Elsener, Ryan A:(Exelon Nuclear) <ryan.else...@exeloncorp.com<mailto:ryan.else...@exeloncorp.com>>; Richard S LaBurn <richard.lab...@dteenergy.com<mailto:richard.lab...@dteenergy.com>> Subject: Re: [Powernet] Diving Remote Monitoring TVA External Message. Please use caution when opening. During our last outage in February we used the Mirion DMC 3000 TX communicating wirelessly to an active dive antenna attached to the diver outside the divers suit. The antenna is wired along the umbilical to a Mirion Adaptive Wireless Monitor configured as a base station. The AWM is then networked to our remote monitoring program. The WRM transmitter module is strong enough to penetrate at least a couple meters of water which made it not an issue to transmit from the legs or arms directly to the dive antenna. Using this method we completed at least a half dozen dives with the dosimeter update time never exceeding 8 seconds and zero lost contacts. I got the idea from Plant Hatch who has been using this method for the last three years. No more IMUX, no more wires inside the suit, no more lost contacts resulting in having to pull the diver out of the water, cuts number of potential failure points in half which greatly simplifies testing requirements and uses equipment in use elsewhere in the plant which removes requirement to train people each year on equipment that is only ever used for diving. If you have any questions feel free to ask. Thanks, Ryan Elsener Radiation Protection Technical Specialist Instrument Coordinator Exelon Generation - Lasalle Station [cid:image001.png@01CE1033.474F29F0] W: 815-415-2721 E: ryan.else...@exeloncorp.com<mailto:ryan.else...@exeloncorp.com> From: Vickers, Glen:(Exelon Nuclear) <glen.vick...@exeloncorp.com<mailto:glen.vick...@exeloncorp.com>> Sent: Friday, August 23, 2019 10:20 AM To: powernet@hpspowernet.org<mailto:powernet@hpspowernet.org> Cc: Bradley A Krupp <bradley.kr...@dteenergy.com<mailto:bradley.kr...@dteenergy.com>>; Richard S LaBurn <richard.lab...@dteenergy.com<mailto:richard.lab...@dteenergy.com>>; Elsener, Ryan A:(Exelon Nuclear) <ryan.else...@exeloncorp.com<mailto:ryan.else...@exeloncorp.com>> Subject: Re: Diving Remote Monitoring Dmc3000 and AWM as base for each diver. Ryan is a good contact. Did suppression pool cleaning and had good performance Glen Vickers, CHP Exelon RP Technical Lead 815-216-2723 work/cell ________________________________ From: Powernet <powernet-boun...@hpspowernet.org<mailto:powernet-boun...@hpspowernet.org>> on behalf of Bradley A Krupp via Powernet <powernet@hpspowernet.org<mailto:powernet@hpspowernet.org>> Sent: Friday, August 23, 2019 10:14:30 AM To: powernet@hpspowernet.org<mailto:powernet@hpspowernet.org> <powernet@hpspowernet.org<mailto:powernet@hpspowernet.org>> Cc: Bradley A Krupp <bradley.kr...@dteenergy.com<mailto:bradley.kr...@dteenergy.com>>; Richard S LaBurn <richard.lab...@dteenergy.com<mailto:richard.lab...@dteenergy.com>> Subject: [EXTERNAL] [Powernet] Diving Remote Monitoring Fermi is going to be doing a significant amount of work inside our Torus in our upcoming Spring 2020 outage. In the past we have used the Mirion IMUX and associated hardware to remotely monitor divers radiation exposure. This generally works quite well but our equipment is getting dated and we don't know how long replacement parts will be available. Is anyone using anything different? If so, could you please provide additional details and contact information? Thanks in advance for your assistance. Brad Krupp This Email message and any attachment may contain information that is proprietary, legally privileged, confidential and/or subject to copyright belonging to Exelon Corporation or its affiliates ("Exelon"). This Email is intended solely for the use of the person(s) to which it is addressed. If you are not an intended recipient, or the employee or agent responsible for delivery of this Email to the intended recipient(s), you are hereby notified that any dissemination, distribution or copying of this Email is strictly prohibited. If you have received this message in error, please immediately notify the sender and permanently delete this Email and any copies. 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