AREA MONITOR SYSTEMS

Model # FML-5A SIX DECADE

Model # FML-5B FOUR DECADE([fig] ([fig] FML-5A / 5B (top),([fig] NEMA-4X detector (middle),([fig] Optional submersible detector (bottom)) FEATURES:

* ALL PLUG-IN MODULAR

* ANTI-SATURATION FEATURE

* SINGLE OR MULTI-CHANNEL

* STAND-BY BATTERY POWER (OPTIONAL)

* RECORDER OUTPUT

* RACK MOUNTING OR CASE

* HIGH AND LOW LEVEL ALARMS
  SOLID STATE NON-CONTACTING

* RUGGED HEAVY DUTY GM PROBE FOR
  LOCAL OR REMOTE MONITORING
  (UP TO 500 FT CABLE OPTIONAL)

* ENERGY COMPENSATED GM DETECTOR

APPLICATION: Area Monitoring in and around nuclear reactors,
hot cells irradiators and other facilities handling radioactive
materials or x-rays.

GENERAL DESCRIPTION: The Radiation Monitor uses a Log Alarm
Ratemeter, Power Supply, Alarm Module and ruggedized GM
Probe. Because of the plug-in modular construction, additional
channels can be added. The built-in anti-saturation circuit
prevents the system readings from falling off full scale
during an over range condition. High level alarm can be
set at any point on scale. Activation produces flashing
red light on front panel and piercing intermittent 2000
Hz tone. Relay is also closed (or opened) for activation
of remote alarms. A system failure alarm in the form of
an amber panel light (and relay closure) is actuated if
signal reading drops below built-in artificial background
rate. Depressing test button on activator module activates
movable check source in detector (option) when installed
and gives check point on meter for system calibration. Rack
mounting or case mounting supplied with up to six readout
modules for every power supply module.

T_{\textrm{A}}                                   TECHNICAL ASSOCIATES                                   
------------------------------------------------------------------------------------------
  7051 ETON AVENUE * CANOGA PARK, CA 91303 TELEPHONE (818) 883-7043 * FAX(818) 883-6103   


$Revision: 1.2 $

AREA MONITOR SYSTEMS

Model # FML-5A SIX DECADE

Model # FML-5B FOUR DECADE

SPECIFICATIONS:

Response: Log

Range: 6 decade dynamic range(FML-5A) 1 mR/hr to 1,000 R/hr
* (artificial background supplied by internal radiation
source in probe) or .01 mR/hr to 10 R/hr * - optional.
4 decade dynamic range (FML-5B) 0.1 mR/hr to 1 R/hr * (artificial
background supplied by internal radiation source in probe)
* Other ranges available to 1,000 R/hr

Front Panel Controls: Selector Switch CAL-Off-On
Hi Level Alarm Set Knob
Lo Level Alarm Set Knob
Alarm Reset Pushbutton
Operate-Calibrate Pushbutton
Hi Voltage Adjust
Power Off-On
Test Button on Activator Module (option)

Time Constant: Varies inversely with count rate

Readout: Meter 100° 2.4" scale. Optional:
240° 4.2" scale

Output: Positive 5 ± 1 V pulse output to Scaler, Printer,
Computer, etc.

Connector: 0-1 mA supplied for remote meter or recorder

T_{\textrm{A}}                                   TECHNICAL ASSOCIATES                                   
------------------------------------------------------------------------------------------
  7051 ETON AVENUE * CANOGA PARK, CA 91303 TELEPHONE (818) 883-7043 * FAX(818) 883-6103   


$Revision: 1.2 $

AREA MONITOR SYSTEMS

Model # FML-5A SIX DECADE

Model # FML-5B FOUR DECADE

Alarm Features: Non-contacting - all solid state percentage
of full scale type. Settable from 0 to 100% of full scale.
Locking electronically actuated relay provides via DPDT
+ 5V at 300 mA plus contact closure (or opening) (3A rating
250V). Alarm module when triggered has flashing red light
and sonalert beeper. Alarms activated until reset.

High Level Alarm: Activated when count rate
exceeds set point. Hi-level red light on count rate meter
panel goes on in addition to Beeper and Flasher.

Low Level Alarm: A small internal radiation source
provides the probe with a count rate which exceeds the setting
on the low-level alarm. Failure of any part of system, including
probe, electronics or power supply, causes indicator to
dip below low level alarm setting and activates alarm. AC
failure is indicated also by pilot light on voltage module
going off. Low level amber light on count rate meter panel
goes on in addition to sonalert Beeper and Flasher.

Anti-Saturation: Circuitry is incorporated to prevent readings
from falling below full scale in over range conditions (tested
to 1,000 R/hr).

Emergency Power (option): Standby
batteries operating under continuous charge automatically
take over and provide approximately 8 hours operation in
event of AC power failure.

Line Operation: 105-125 V (or 200-240 V), 50-60 Hz.

High Voltage Output: 0 to +2,000 V at 200
\mu A continuously adjustable

Detector: Energy compensated halogen quenched GM detectors,
in ruggedized probe with internal radiation source. Supplied
with 8 ft cable. (Up to 500 ft of cable can be supplied
as an option).
Optional movable internal radiation source - activated remotely.

Energy Dependence: ± 20% from 100 KeV to 1.2 MeV

Console Dimensions: 10-1/4"
W x 8-3/4" H x 13-1/2" D (single
channel - wider if more than one channel) or rack mount

Weight: Console plus detector 21lbs.

T_{\textrm{A}}                                   TECHNICAL ASSOCIATES                                   
------------------------------------------------------------------------------------------
  7051 ETON AVENUE * CANOGA PARK, CA 91303 TELEPHONE (818) 883-7043 * FAX(818) 883-6103   


$Revision: 1.2 $