HFM11 Brochure

Product Specifications
The HFM11 provides fast, thorough,
hand and foot monitoring with class
leading reliability and ease of use.
Now available with both gas sealed
and gas flow detectors.
HFM11
Gas flow and gas sealed hand and foot
monitor
The HFM11 is the latest generation highperformance hand and foot monitor.
There are two gas versions: the HFM11GF (gas flow) and the HFM11-SX (gas
sealed Xenon). The high-efficiency foot
detectors help to reduce monitoring
times, the longer hand detectors provide
wrist and forearm coverage and there is
an optional frisker probe available for
additional monitoring. Status, instructions and results are clearly shown on
the large color LCD touch-screen, making
the monitor especially easy to use.
· Low power fan-less operation
· Long hand detectors for wrist &
forearm coverage
· Large touch-screen color LCD
display - no keyboard required
· Easy to maintain detector assemblies,
no tools required
· Optional frisker probe
· Hex-mesh grills for greater comfort
and detector protection
· Automated calibration and checking
routines
The HFM11 is also designed with
economy and reliability in mind. The low
power consumption means there is no
need for a cooling fan which might suck
in dust and dirt, and there are no moving
parts to fail - solid state Flash storage is
used instead of a hard disk in the
industrial PC controller, and photobeams
are used in the positioning sensors
instead of microswitches.
The modular ‘X-channel’ platform, with common controller boards and simple cabling,
provides for easy, low cost maintenance. It also provides detector intelligence and
powerful controller functionality - such as the automated calibration and source checking routines. The X-channel architecture also allows easy retro-fitting of options such
as the frisker probe (not available with gas sealed). Gas flow measurement is now
handled electronically by on-screen flow graphs and leak and high/low flow alarms.
Optional Frisker
Sophisticated voltage scanning software included which will clearly display the
optimum voltage in order to minimize cross-talk between alpha and beta channels (gas
flow) and discriminate between X radiation and other interfering radiations (gas
sealed).
HFM11 Specifications
HFM11 Specifications
Detectors:
Operating voltage:
Sensitive area:
Window:
Gas supply/fill:
HFM11-GF
Hand Counters (x4)
Foot Counters (x2)
460 cm2 each
570 cm2 each
2
0.9 mg/cm aluminized Mylar
Ar/CH4 or Ar/CO2. Flow rate 25 to 50 cm3 / min.
Efficiencies:
Alpha:
(% of surface emission rate)
Beta:
(% of surface emission rate)
Hand
Am 40%
241
14
C
Co
36
Cl
90
Sr/90Y
129
I
60
33%
45%
50%
54%
X-ray:
(% of surface emission rate)
Gamma:
100
(Approx. counts/s in a uniform
field of 1µSv/h due to 660 keV photons)
Monitor:
Alarm settings:
Background update time:
Monitoring time:
Control:
Indications:
Audible indication:
Probability of false alarm:
Probability of detection:
Self test:
Digital I/O connections:
Logic outputs:
Environmental:
Power requirements:
Dimensions:
Weight:
HFM11-SX
Hand Counters (x4)
1600 V
460 cm2 each
5.5 mg/cm2 of Titanium
Xenon and CO2
Foot Counters (x2)
570 cm2 each
Foot
35%
Hand
Foot
30%
42%
45%
48%
5%
18%
32%
4%
18%
30%
7%
5%
220
300
200
By the use of large area calibrated sources or by touch-screen entry of calculated efficiencies. All HFMs
are factory-tested with reference sources.
100 second rolling average
Auto time: 1 to 100 seconds
Audible and visible alarms occur if a hand or foot is out of position.
Digital screen displays for alpha and beta levels for each hand and foot. Magnitude and type of
contamination is displayed (can be suppressed from the set-up menu).
Separate indications for ‘Out Of Position’, ‘Clear’ and ‘Alarm’ states, as on previous HFM versions.
0.1 to 10 sigma in 0.1 sigma steps
0 to 10 sigma in 0.1 sigma steps
High Voltage, detector response, detector contamination and background level are monitored. Validity
check on parameter storage.
RS-232, Parallel printer port, Ethernet and USB. Optional: 2nd RS-232, RS-422, RS-485
Available as additional hardware option
Operational temperature range: 5 °C to 45 °C (41 °F to 113 °F)
Humidity: up to 95% at 35 °C (95 °F) (non-condensing)
90 to 264 VAC (auto-ranging power supply), 47 to 63 Hz, 85 VA max.
Height:
1400 mm (55.1")
1765 mm (69.5") with lid fully open
Width:
876 mm (34.5")
Depth:
825 mm (32.5")
125 kg (275 lb) approx. unpacked. Frisker options 5 kg (11 lb) approx.
©2007 Thermo Fisher Scientific Inc. All rights reserved. Kapton is a registered trademark of of E.I. du Pont de Nemours and Company. All other trademarks are the property of Thermo Fisher
Scientific Inc. and its subsidiaries. Results may vary under different operating conditions. Specifications, terms and pricing are subject to change. Not all products are available in all countries.
Please consult your local sales representatives for details. Literature Code LITHFM11GAS 0407
Worldwide
Frauenauracher Strasse 96
D 91056 Erlangen, Germany
+49 (0) 9131 909-0
+49 (0) 9131 909-205 fax
United Kingdom
Bath Road, Beenham,
Reading RG7 5PR United Kingdom
+44 (0) 118 971 2121
+44 (0) 118 971 2835 fax
United States
27 Forge Parkway
Franklin, MA 02038 USA
+1 (508) 520-2815
+1 (800) 274-4212 toll-free
+1 (508) 428-3535 fax
www.thermoscientific.com/rmp