Columbia’s response below:
1. Do you use the dose and/or rate alarm warnings available with the DMC2000/DMC 3000? NO 2. If you do, why and what issues have you had? N/A 3. If you don't, why not? We require the wearer to check their accumulated dose at least every 15 minutes, more frequently in elevated dose rate areas. We do not want them to become reliant on an audio warning. 4. Do you use the rate alarm latching feature? NO, we brief to anticipated dose rate alarms, e.g. transient dose rate alarm received in the travel path to the work location. Workers are briefed to move away from the source of the alarm, verify it clears and proceed to their work location. 5. What access control software do you use and what version is it? We use our own in-house developed software. 6. Please provide a contact for additional information. Ray Thomson Health Physics Craft Supervisor Columbia Generating Station [email protected] Office, 509-377-8273 Pager, 509-780-0339 From: [email protected] [mailto:[email protected]] On Behalf Of Bradley A Krupp Sent: Tuesday, April 01, 2014 4:44 AM To: [email protected] Cc: Adam C Horne; Benjy P Bertossi Subject: Powernet: ED warning alarms and latching rate alarm Fermi 2 would like feed back from our industry peers on the following: 1. Do you use the dose and/or rate alarm warnings available with the DMC2000/DMC 3000? 2. If you do, why and what issues have you had? 3. If you don't, why not? 4. Do you use the rate alarm latching feature? 5. What access control software do you use and what version is it? 6. Please provide a contact for additional information. Thanks in advance for your assistance. Brad Krupp
