CMS Gamma

CMS Gamma
Product Datasheet
CMS Gamma
Continuous Gamma Monitoring Station
The CMS-GAMMA is a new generation continuous
monitoring station for measurement of gamma
radiation providing essential, reliable information to
personnel when radiation levels are above normal.
The versatile unit can also be used in conjunction
with the SIL Safeguard Monitor, providing interlock
control at a Safety Integrity Level (SIL) 2 rating in hot
areas such as fuel stores, caves, glove boxes and
cells as required.
The CMS-GAMMA is a compact, mains-powered, gamma
monitor designed specifically for building, area and process
monitoring in nuclear facilities. The monitor offers all the
classic functionality of its predecessor the CMS-1LG
with wide range capability providing measurements from
ambient background up to 10Sv/h (1000rem/h).
Highlights
• Low cost area gamma monitor :Single or dual detector
• Wide dynamic range (suitable for variety of applications)
• Detector measurement options, including GM sensors,
ION chambers and scintillation detectors
• Installed or transportable
• Full network capability
The CMS-GAMMA is intended for installed applications,
but can also be used with a transportable frame or
trolley to provide temporary monitoring or to supplement
permanently installed monitors during site maintenance or
decommissioning procedures. The only requirements of the
CMS-GAMMA monitor is that its associated detector is
suitably mounted and has mains power supply in the range
85-260 Vac .
Applications
• Environmental monitoring
Operation and Security
• Stand alone gamma monitoring
The CMS-GAMMA performs a self-test on power up
and then commences continuous monitoring. All system
parameters are password and key protected and can be
modified using the local keypad and display. In addition
to this, all operating parameters can be read and updated
via FTP using a personal computer. Current alarm status,
parameter settings and recent count and event log data
can be read using a web browser ensuring that all key
personnel can have 24 hour access to data remotely. The
following actions may be passcode/keyswitch protected:
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www.labimpex.com
CMS Gamma
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Clear Historic Count Data
Clear Event Log
Reset Pass Codes
Modify Pass Code
Test/Calibrate Analogue I/O
Test Digital Outputs
Dose rate indicators
The CMS-GAMMA provides two separate indications of
dose rate :
• An analogue vertical graph representing the percentage
of the alarm level selected on the LCD display (which is
visible from a distance of 9m (30 ft.)
• An LCD display with LED backlighting which provides
a numerical indication of the dose rate and indicate the
current alarm level setting simultaneously. The display
(viewing area 114mm x 64mm (4.5” x 2.5”) ), also allows
sixteen rows of text to be visible at any one time when the
user is locally changing parameters or viewing historical
results.
When the CMS-GAMMA is operating normally, the green
beacon is constantly illuminated. During alarm conditions,
the red beacon flashes. In addition to the beacon, two
LED’s located above the display indicate normal operation
or fault.
The user may suppress alarm annunciation for each or all
of the activity alarms if required (this facility is passcode
protected). In the event of a sustained mains failure, dose
rate measurement continues supported by an internal
battery for up to 1 hour (when using GM detector).
Outputs and Communications
Connections to the CMS-GAMMA are located on the
underside of the instrument. The CMS-GAMMA enables
the user to control external devices and to transmit data to
local (or remote) locations via:
• Four relay outputs (Alarm 1, Alarm 2, Alarm 3 and Fault)
(NB: Relays operate in the fail-safe mode - they are
energised during normal operation)
• One RS-485 (or RS-232) serial port for communication
with remote monitoring systems
• Ethernet (TCP/IP)
Alarms and Annunciators
Safety integrity SIL applications
The CMS Gamma can be used in conjunction with the
Lab Impex SIL Safeguard Monitor (SSM) for both interlock
and process applications that require a high level of safety
integrity . More information on the SSM board, CMS
Interlock and the CMS Process, all of which have been
designed to meet the specifications of IEC61508, can be
obtained by requesting the datasheets L327, L328 and
L333 respectively.
The CMS-GAMMA has four alarms (three alarm thresholds
and fail alarm), all of which are user settable via the display
and keypad or Ethernet connection (TCP/IP). The ‘Alert’
and ‘High’ alarms are triggered when the ambient radiation
level exceeds these thresholds. The ‘Low’ failure alarm
is triggered if the radiation falls below this level. Its main
purpose is to identify a detector failure.
Alarm annunciation is by means of:
-The red beacon (can be configured to flash or remain on
constantly)
-The sounder
Self Test Facilities
The CMS-GAMMA continuously self-monitors for faults.
Conditions checked include:¬
• Detector Failure
• Power Failure
• Detector Over range
• Alarm Beacon Failure
• Low Battery Voltage
Occurrence of any of these conditions will cause the green
beacon to flash and the nature of the fault will be displayed
on the LCD.
The user may suppress alarm annunciation for each or all
of the activity alarms if required (this facility is passcode
protected). In the event of a sustained mains failure, dose
rate measurement continues supported by an internal
battery for up to 1 hour (when using GM detector).
Calibration
The CMS-GAMMA can be calibrated using a suitable
gamma source with a traceable dose rate. LIS can supply
details of calibration sources if required
2/4
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Performance specification
CMS Gamma : Continuous Gamma Monitoring Station
Standard GM
detectors
GDI rangd
Physical
characteristics
GM-1304 Range: 0.1mSv/h - 10Sv/h
(0.01rem/h - 1000rem/hr)
GM-1314 Range: 10 uSv/h - 3Sv/h
(0.03mrem/h - 300rem/hr)
GM-1324 Range: 0.3 uSv/h - 0.1Sv/h
(0.03mrem/h - 10rem/hr)
GM-1202 Range: 0.1 uSv/h - 40mSv/h
(0.01mrem/h - 4rem/hr)
GM-1301 Range: 0.1mGy/h - 10Gy/h
(0.01rad/h - 1000rad/h)
GM-1313 Range: 10 uGy/h - 3Gy/h
(0.001rad/h - 300rad/h)
GM-1321 Range: 3 uGy/h - 0.1Gy/h
(0.3mrad/h - 10rad/h)
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304 Stainless steel enclosure
Wall, trolley and transport frame
Designed for quick low cost installation with easy
access
Dimensions
(HXWXD)
& Weight
H : 458 mm (18”) including LED beacon and cable
connectors
D :150mm (5½”) including sounder projection
W : 200 mm (8”)
Weight: Approx 7 kg (15 ½ lb)
Environmental
protection
P54 (IP65 option available*)
Display
• Large LCD graphic display (114mm x 64mm (4.5” x
2.5”) with backlight.
• Fully sealed membrane keypad
• Both digital and analogue display
• Large dose range
• Key switch
• Two layer status light column (Totem Pole, Red +
Green LED)
Data Storage
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Operating
Environment
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Power Details
• Mains AC single phase connection (85-260 V ac)
• Battery: Internal 1hr back-up rechargeable battery
(facilitates full operation for 1 hour with
• single GM detector option/ CMS monitors the
battery voltage)
• Frequency: 47 to 60 Hz
• Max. Current: 500mA
• Internal 1A anti surge fuse
Inputs
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Outputs
• Fail-safe relay contacts for faults and alarms - Four
Relay outputs (Alarm1, Alarm2, Alarm3 and Fault)
• RS-232/RS-485
• 2 x analogue outputs configurable 0-5V, 4-20mA,
0-20mA
• Ethernet 10baseT (LIS protocols, HTTP, FTP).
Alarm facilities
• Fast, accurate warning of high activity or faults
• Tower light configuration: Visual alarm (12v LED
totem pole).
• Audible alarm sounder: 2 tones alternating at
1.2Hz>100dB (other tones optional)
• Alarm clearly visible from 9m (33ft)
• Optional relay outputs for remote audible/visual
alarms. Three activity alarm thresholds and other
parameters can be set by the user and pass-code
protected.
1 x RS232 port (LIS protocols).
1 x RS485 port (LIS protocols).
1 x Ethernet 10baseT (LIS protocols, HTTP, FTP).
2 x counting channels (Twin detector, Single
channel, using external SGM).
• 2 x analogue 4-20mA inputs - with option of
hardware dampening
• Detector Interface RS-422 (balanced differential line)
Non-volatile data capability for 7 days count
history at minimum 5-minute data log intervals
with historical review on LCD display
Non-volatile data capability for event history (last
100 events).
- Non-volatile storage for operating parameters.
Indoor use (or suitably enclosed)
Operating temperature range -10 to 50oC (-4oF
- 122oF)
Maximum relative humidity 95% (up to 30oC)
3/4
The board used for print is 80%
recycled paper and 20% virgin
pulp from sustainable forests.
Lamination is fully biodegradable.
Lab Impex Systems Ltd
Impex House, 21 Harwell Road,
Nuffield Industrial Estate, Poole,
Dorset, BH17 0GE, UK
Head Office
T +44 (0) 1202 68 48 48
F +44 (0) 1202 68 35 71
E info@labimpex.com
North Region
T +44 (0) 1946 72 11 11
Lab Impex Systems Inc
Suite 100, 106 Union Valley Road,
Oak Ridge, TN 37830
T 1-865-483-2600
F 1-865-381-1654
Certificate No: Q 09160 BS EN ISO 9001 : 2008. Reg No. 1347646 England. VAT No. 619 9597 76
www.labimpex.com
Performance specification (contd from page 3)
CMS Gamma : Continuous Gamma Monitoring Station
Data storage
• Non-volatile data capability for 7 days count
history at minimum 5- minute data log intervals with
historical review on LCD display
• Non-volatile data capability for event history (last
100 events).
• Non-volatile storage for operating parameters.
Parameter
(upload/
download)
All operating parameters can be read and updated via FTP over Ethernet using a personal computer.
Web Server
Current alarm status, parameter settings and recent
count and event Log data can be read over
ethernet using a Web browser.
Security
The following actions may be passcode/keyswitch
protected:
• Change Parameters
• Clear Historic Count data
• Clear Event Log
• Reset Pass Codes
• Modify Pass Codes
• Reset Instrument.
• Test / Calibrate Analogue I/O.
• Test Digital Outputs.
Self Test
facilities
• The CMS-GAMMA continuously self-monitors for
faults. Conditions checked include:• Detector Failure
• Power Failure
• Detector Over range
• Lamp Failure
• Battery Voltage
• Detector Type
Approvals/
Radiological
Standards
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CMS Gamma
Accessories
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Transportable Stand
Transportable Trolley
Adapter Backplate (allows fitment for CMS-1
replacements)
Compliant with 73/23/EEC- EMC Directive
Type approval at NRPB
Compliant with 93/68/EEC Low Voltage Directive
Designed to IEC 61017-1 (Environmental gamma
Designed to IEC 61017-2 (Transportable gamma
Designed to IEC 60532 (Installed gamma
Designed to ANSI N42.17 (parts A and C)
4/4
The board used for print is 80%
recycled paper and 20% virgin
pulp from sustainable forests.
Lamination is fully biodegradable.
Lab Impex Systems Ltd
Impex House, 21 Harwell Road,
Nuffield Industrial Estate, Poole,
Dorset, BH17 0GE, UK
Head Office
T +44 (0) 1202 68 48 48
F +44 (0) 1202 68 35 71
E info@labimpex.com
North Region
T +44 (0) 1946 72 11 11
Lab Impex Systems Inc
Suite 100, 106 Union Valley Road,
Oak Ridge, TN 37830
T 1-865-483-2600
F 1-865-381-1654
Certificate No: Q 09160 BS EN ISO 9001 : 2008. Reg No. 1347646 England. VAT No. 619 9597 76
www.labimpex.com
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