Eberline made the RM-14 and E-140 with only 3 scales to 50K CPM to avoid
this problem. Friskers do not get a lot of use on the higher ranges. At
SONGS, we ordered the 177 count rate with only 3 scales for the same reason.
You could retrofit to a 3 position switch, and scrape off the 1K indicato
Duke Energy uses 3M Versaflo with several different head tops all 1000 APF. No
issues, very happy with them so far. We’ve been using them starting in 2012 or
13 and are steadily increasing the ways we use them instead of tight fitting
respirators.
Dave
David J. Lloyd | Corporate Fleet Scient
Duke Energy uses the Ludlum model 177 count rate meter with the Ludlum model
44-9 probe. Duke Energy recently learned that the Ludlum model 44-9 probe has a
manufacturer stated dead time of 80 microseconds. This would yield a
theoretical count rate loss of 67% at 500,000 cpm (the top of the X1K
Dominion Energy at Surry Power Station is bench marking the use of PAPR's used
at other sites. We would like to know what manufacture/ brand that you are
currently using to include any contamination issues that may have occurred due
to their use.
Glenn D. Canter <><
Respiratory Protection Spe
Bebb, Jeremy L. would like to recall the message, "[Powernet] Does anyone use
epd pre-alarm alerts?".
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South Texas Project does not use pre-alarms for the same reason as Ontario
Power.
-Original Message-
From: Powernet [mailto:powernet-boun...@hpspowernet.org] On Behalf Of Bebb,
Jeremy L. via Powernet
Sent: Tuesday, May 01, 2018 6:56 AM
To: 'powernet@hpspowernet.org'
Cc: Bebb, Jeremy L.
We sue an 80% dose warning. The SRD is configured to alarm at 80% of the RWP
approved setpoint and spelled out on the RWP. The workers are trained to
respond to the 80% dose warning the same they would a dose alarm. We
implemented this practice 12 years ago and have only had 2 dose alarms since.
