Ludlum Measurements 3100, Руководство пользователя

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1-5
Table 1-1. Reference Data, continued.
Gamma
Compensation Allows for tritium monitoring
in up to 5 mR/hr (0.05
mSv/h) gamma fields Display Range 0-20,000 µCi/m
3
(0 to 740
MBq/m
3
)
Battery
Dependence Calibration changes <5%
within battery check limits Temperature 32 to 122
o
F (0 to 50
o
C)
Humidity Range 40 - 90% RH maintaining
response ±15% of reading
at 40% RH and 71 °F (22
°C)
Effective Range of
Measurement
From 1 to 10,000 µCi/m
3
(0
to 370 MBq/m
3
)
Minimum Detectable
Activity (MDA)
2 µCi/m
3
(0.074 MBq/m
3
)
Mode Switch
Positions Off, Check, Measure,
Sample (Pump On), and
Purge Response Time Approximately 60 seconds
Construction Rugged, gasketed,
waterproof
(1)
aluminum
enclosure with external
user-replaceable 0.2 µm
PTFE particulate filter
Linearity Reading within 20% of true
value
LCD Display 2.7 in. (6.9 cm) diagonal
transflective backlit LCD
housed inside the
electronics enclosure Pollution Degree 3 (As defined by
IEC 644, “Occurs when
conductive pollution or dry
nonconductive pollution
becomes conductive due
to condensation.”)
Audio 75 ±5 dB at 2ft, at a
frequency of 2500 Hz on
alarm or failure conditions,
may be acknowledged and
then reset by operator
using ACK / RESET button Output Sealed 9-pin D connector
provides potential-free
relay contacts for pump
active (pins 6 &7) and
alarm active (pins 8 & 9),
contacts rated for 350V
and 120 mA. Also has
communication lines to
connect to computer for
calibration on pins 1-4.
Dimensions Instrument: 7.9 x 6.3 x 11.8
in. (20 x 16 x 30 cm) (H x
W x L)
Case: 7.9 x 15.5 x 19.9 in.
(20 x 40 x 51 cm) (H x W x
L)
Weight Instrument: 9 lb (4 kg) with
attached cables and tubing
Case: 21 lb (9.5 kg) with
detector, 20-ft hose, 35-ft
power cord and manual
Notes:
( 1) Lightly falling rain is defined as ¼ inch/hour for a period of 2 hours at 68 °F (20 °C).