BNC 951 nukeALERT Preventative Early Warning Radiation Detector - Manual (Page 4)

Operating Instructions-Alarms (continued)
In addition, when in SPK mode, an audible alert will sound
in increasing intensity as the alarm level goes from 1 to
higher levels. When unit is on, calibrated and in VIB mode,
the nukeALERT will alarm by displaying the level on the
LED window and activating the vibra-sender feature and
the intensity of vibration will increase proportionately as
the level of gamma radiation increases.
In addition to the visual LED window, audible alerts and
vibration alerts, a small rectangular LED located directly
below the BNC logo on top of the unit will flash slowly
(and display an orange color) as a level 1 alarm is
displayed on the larger LED and will increase in the
rate of flashing as alarm levels increase through level
9 up to the maximum level H. Finally, the color of this
flashing LED will change from orange to red at levels 6
through 9 and also at maximum level H.
In the event the operator changes work location during
the course of their duties, it is recommended that the
nukeALERT be turned off and turned back on (allows
unit to automatically re-calibrate to the natural back-
ground radiation in the new location which can be
significantly different from place to place). This simple
and quick step will insure that the unit will be the
most effective and sensitive to small increases of
gamma radiation.
Internal Switch
Inside the back of the battery compartment of the
nukeALERT is a small 16-position switch that can be
adjusted with a long handheld screwdriver. The majority
of nukeALERT users will not require adjustment of
this switch. The purpose of this adjustment and switch
is to allow adjustment of the background level radiation
value if the user is operating in an environment where the
background radiation swings back and forth frequently
(such as in close proximity to an operating X-ray machine).
This switch auto adjusts the “1” to “9” and “H” scale so
that the operator in those environments does not constantly
get false alarms. This switch should only be adjusted by
an informed operator. If the switch level is set too high,
it will desensitize the nukeALERT and potentially allow
low-level radiation sources through that would be detected
under normal operation.
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A C C E S S O R I E S
A ballistic nylon case (with a clear plastic window on
top flap) is supplied with each nukeALERT. The belt
loop has a snap fastener allowing the user to affix
the case/nukeALERT to a belt of up to 3" in width.
The top flap on the case opens and closes easily
using a Velcro
® fastener and allows removal of the
nukeALERT if required. If the operator prefers to
utilize the optional belt clip assembly shown below,
please contact the BNC Customer Service department
(800-234-7858) or your sales representative. The belt
clip fastens directly to the back of the nukeALERT
and swivels while worn on belt or garment and
allows quick release of nukeALERT to allow
handheld operation.