Hey guys,  Finally made a video of a problem we see a lot in the
shop.  You've got a dead sensor, usually LEL or H2S, and the way
it died was from either slow poisoning through lead or silicon
(on the LEL sensor) or that the last bottle of calibration gas
you had fell victim to the dreaded H2S fade.  Regardless, you
have a new sensor now, and you install it, only to find that
with your new sensor and new bottle of calibration gas, the
sensor is now too sensitive to calibrate and you're outside the
threshold calibration range! This is actually a software issue,
of all things, and it happens on a number of brands. We see it
most on BW Technologies and MSA, but it'll happen on other
brands as well.  This youtube will show you the basic procedure
on how to fix it. All you need is an extra bottle of calibration
gas of a lesser value than the sensor giving you problems. If
you have any questions, feel free to email me at
james@idealcalibrations.com. My phone has been off the hook
lately, so email is easier on me.