BNC 951 nukeALERT Preventative Early Warning Radiation Detector User Manual

Page 3

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S P E C I F I C A T I O N S

Function

Gamma ray detection

Detector

Cesium Iodide Scintillator

Battery Life

2+ years @ 48 hrs/week

Batteries

2 AA Alkaline

Response Time

< 1 second

Notification

1. Audio alarm; beeps increase based

on radiation strength

2. Vibration; vibration pulses increase

based on radiation strength

3. Flashing LED; flashes increase based

on radiation strength, color changes

from orange to red

4. LED with readout “1” through “9”

and “H” for the highest level

(HOTZONE)

Calibration

Automatic when turned on

Calibration 16-position switch; allows manual

Biasing

setting for operation in high-radiation
environments (Ex., near X-ray
machines)

Placement

Belt clip or belt pouch

Size

3.75" x 2.5" x 1.25"

Weight

6.4 oz w/batteries

Environment

Heavy rain
-10˚ F to 122˚ F, -23˚ C to 50˚ C
Day or night visibility
In loud or quiet environments
Passes 3 feet drop test onto concrete

Designed and tested to meet U.S. Customs Service
specifications

O P E R A T I N G I N S T R U C T I O N S

F O R

U S E R

The nukeALERT is shipped with batteries installed and
is ready to use (See Battery Management section on
page 8). Remove it from the shipping carton and
familiarize yourself with the controls and displays on
top of the unit and operating instructions on back label.
To begin operation, move the nukeALERT power switch
from the “Off” position to SPK (for SPEAKER which is
the “on” position) and the unit will begin a power up
and calibration sequence. During the 30 second calibra-
tion interval, the unit will measure naturally occurring
background radiation and will calculate a threshold
above which a radiological alert will be indicated to the
operator. The LED display will flash during the 30 second
calibration sequence. Following completion of calibration,
a beep is sounded indicating the threshold level has
been successfully calculated for that particular environ-
ment. Every 15 seconds thereafter, an LED in the lower
center of the main display window will flash, indicating
the unit is operating properly and is in detection mode.
Because the nukeALERT auto-calibrates to the ambient
radiation level, maximum sensitivity will be obtained if
you turn the nukeALERT on at the location where you
are planning to inspect.

If the nukeALERT finds that it is no longer detecting
the background radiation levels that it expects over a
period of time (such as if the operator takes it into a
concrete building), the nukeALERT will recalibrate
itself. The nukeALERT will beep and the LED will show
a “racetrack” pattern for 30 seconds. When complete,
the nukeALERT will beep and go into detection mode.
This is performed to keep the nukeALERT at maximum
sensitivity levels in all environments.

Alarms

The nukeALERT will alarm (either audibly if in SPK
mode or will vibrate if in VIB mode) when the presence
of gamma radiation exceeds the natural background
levels. Alarms are visually displayed (LED window on
top left of unit) in levels from 1 (low level of gamma
photons present) to 9 (high level of gamma photons
present) and will also change to a more intense color.

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