ALPHA AND BETA-GAMMA HAND & SHOE
MONITOR
WITH DIGITAL DYNAMIC BACKGROUND SUBTRACT
Model # HSM-10G
FEATURES:
- READS ALPHA AND BETA-GAMMA SEPARATELY AND SIMULTANEOUSLY
- AUTOMATICALLY ADJUSTS FOR CHANGING BACKGROUND LEVELS
- ALL MODULAR INTEGRATED CIRCUIT DIGITAL CIRCUITRY
- TILTED READOUT PANEL AT EYE LEVEL FOR EASY VIEWING
- PROJECTOR WARNING SYSTEM
- LOW LEVEL ALARM, HIGH BACKGROUND ALARM AND CONTAMINATION ALARM
- AUDIBLE WARNING IF HANDS OR SHOES ARE MOVED OFF OF DETECTION AREA BEFORE END OF COUNTING TIME
- INDIVIDUAL ALPHA AND BETA-GAMMA VISUAL ALARM INDICATORS
- SHIELDED 1 EASILY DECONTAMINATED GAS FLOW DETECTORS
- FILTERING AND CABLING DESIGN MINIMIZES ELECTROMAGNETIC
INTERFERENCE FROM EXTERNAL SOURCES
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GENERAL DESCRIPTION: The HSM-10G
monitors both alpha and beta-gamma in each channel. There are three
channels of detection - left foot, right foot, and hands (* see
specs for other options). Each channel has separate alarm level set
switches for alpha and for beta-gamma radiation. Background is monitored
continuously while the system is unoccupied. Background subtraction
uses the most recent beta-gamma background count. Time for the monitoring
count is preset on a versatile digital timer with choices from 1 to
99 seconds in one second intervals. This preset time is also the background
update time. The beta-gamma alarm switch for each channel sets the
count above background needed within the preset time period to excite
an alarm. Alpha background is low (typically <<
10 cpm) and may be neglected or counted by the HSM-10G and added to
give best preset alpha count.
Operation is digital. Indicators include LED's and
warning projection with warnings projected onto a front panel screen
in a large and very effective display. A five digit plus overflow
LED display can be switched to each channel for alpha, beta, or background
displays for aid in calibration. The display and controls are behind
a locked cabinet door. Counting time for all channels is preset on
a digital timer with choice of 1 to 99 seconds in 1 second increments.
High sensitivity is achieved by using spring loaded hand detectors,
large, minimum thickness detector windows and maximum transmission
protection screens.
TA TECHNICAL ASSOCIATES
7051 ETON AVENUE * CANOGA PARK, CA 91303
TELEPHONE (818) 883-7043 * FAX(818) 883-6103
e-mail: tagold@nwc.net www.tech-associates.com
ALPHA AND BETA-GAMMA HAND & SHOE
MONITOR
WITH DIGITAL DYNAMIC BACKGROUND SUBTRACT
Model # HSM-10G
SPECIFICATIONS:
*Options of : left hand, right hand, both
feet or left foot, right foot, both hands.
- Hand Detectors: 10-3/4'' x 6-1/4'' each
side (gas flow) - 4 hand detectors.
- Shoe Detectors: 16-1/4'' x 6-1/4'' each
shoe (gas flow) - 2 shoe detectors.
- Detector Construction: Hinged mounting
for easy access and decontamination. Shielding for background reduction.
0.5 mg/cm2 aluminized Mylar detector windows with protection
screen 73% open area.
- Shielding: >|= 2 pi shielding
about detectors - steel 0.7'' lead equivalent. (Optional)
- Channels:]Left shoe, right shoe, hands
or left hand, righthhand, both feet or left foot, right foot, both
hands.
- Utility Scaler: 0 to 99,999 plus overflow
with LED display. Can switch to left shoe alpha; left shoe beta; right
shoe alpha; right shoe beta; hands alpha; hands beta.
- Channel Counting Time: Selectable from
1 second to 99 seconds in 1 second increments.
- Background Update Interval: Background
updates automatically whenever unit is not occupied. Background update
interval same as channel counting time.
- Alarms: Background - Sonalert plus front
panel light indicators. Adjustable in 10 steps - 100 counts to 1,000
counts.
Low Level Alarm - (indicates malfunction) - front panel light
indicator (factory set).
Channel Alarms - Sonalert plus front panel light indicators.
Selectable in 1 count increments: Alpha - 0 to 99 counts; Beta-Gamma
- 0 to 999 counts.
Check Incomplete - Sonalert plus projector warning.
- Projector Warning System: Front panel
screen 3-1/2`` x 2-3/4'' with display of following messages -
only one message displayed at one time.
Contamination (location of contamination channels and whether
alpha or beta contamination also displayed).
Check OK
Ready for Use
Counter in Operation
Check Incomplete - Reset and Repeat
- Front Panel Indicators: Message Projection,
High Background Alarm Light, Low Level Alarm Light, Power-On Light
- Use Count Register: (Audit instrument
use) - 0 to 99,999 (Optional)
- Power Source: 115 VAC, 60 hz (200-240
V, 50-60 hz optional)
- Dimensions: Cabinet - approximately 67''
high x 27'' wide x 24'' deep (170 x 70 x 60 cm)
- Shipping Weight: 650 lbs. (295 kilos)
TA TECHNICAL ASSOCIATES
7051 ETON AVENUE * CANOGA PARK, CA 91303
TELEPHONE (818) 883-7043 * FAX(818) 883-6103
e-mail: tagold@nwc.net www.tech-associates.com