hsm-10gp

ALPHA AND BETA-GAMMA HAND & SHOE MONITOR WITH DIGITAL DYNAMIC BACKGROUND SUBTRACT

Model # HSM-10GP - Sealed Detectors - No Gas Flow

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 SEALED DETECTORS

FILTERING AND CABLING DESIGN MINIMIZES ELECTROMAGNETIC
INTERFERENCE FROM EXTERNAL SOURCES

GENERAL DESCRIPTION: The HSM-10GP 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-10GP and added to give best preset alpha count.
HSM 10GP Image

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.

^T_A 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-10GP- Sealed Detectors - No Gas Flow

SPECIFICATIONS:

*Options of : left hand, right hand, both feet or left foot, right foot, both hands.

Hand Detectors: 2'' dia. x 1/2'' deep. 4 Tubes per Hand (8 Total).
Shoe Detectors: 2'' dia. x 1/2'' deep. 3 Tubes per Foot (6 Total).
Detector Construction: Thin Window, Sealed Proportional Detectors for easy access and decontamination. Shielding for background reduction. <2.2 mg/cm² Mica detector windows with protection screen 73% open area.
Shielding: > 2 pi shielding about detectors - 0.7'' lead. (Optional) Other shield thinkness also available.
Channels: Left shoe, right shoe, hands or left hand, right hand, 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.
Calibration Factors: Each Channel has easy enter a Calibration Factor so the HSM can readout in Raw Counts (calfactor=1) or Bq/100cm² or other units of the user's choosing.
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) Includes Optional shielding.

^T_A 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