Fluke Biomedical 440RF - Manual (Page 6)

Victoreen 440RF/D
Operators Manual
1-2
1.2 Specifications
Full Scale Range Model 440RF/D:
0 to 1, 0 to 3, 0 to10, 0 to 30 and 0 to 100 mR/h
Model 440RF/D-SI
0 to 10, 0 to 30 and 0 to 100, 0 to 300 and 0 to 1000 μSv/h
Radiation Detected Gamma, x-ray, and beta
Operating Range Model 440RF/D: Exposure rate in five overlapping ranges:
0 to 1, 0 to 3, 0 to 10, 0 to 30 and 0 to 100 mR/h
Model 440RF/D-SI: Dose equivalent in five overlapping
ranges: 0 to 10, 0 to 30, 0 to 100, 0 to 300, 0 to 1000 μSv/h
Energy Response X and Gamma: + 10% from 12.5 keV to 42 keV effective, with
a maximum peak of + 40% in the medium energy range.
Beta: Energies above .15 MeV
Insensitivity RFI: Operates properly in 10 mW/cm 2 fields
Magnetic: Operates properly in a 200 gauss field
Accuracy Maximum instrument inaccuracy, exclusive of energy
dependence, is less than + 10% of full-scale indication.
Response Time Range Response Time
0 to 1 mR/h (0 to 10 μSv/h) 7 seconds
0 to 3 mR/h (0 to 30 μSv/h) 7 seconds
0 to 10 mR/h (0 to 100 μSv/h) 5 seconds
0 to 30 mR/h (0 to 300 μSv/h) 5 seconds
0 to 100 mR/h (0 to 1000 μSv/h) 5 seconds
Ion Chamber Chamber Window Area: 10 cm 2
Volume: 60 cc
Chamber Window: Approximately 1.5 mg/cm
2 aluminized
mylar
Dimensions: 2.5 in (6.4 cm) long; 1.5 in (3.8 cm) diameter
Case Window 13 mg/cm 2 magnesium
Batteries Three 9 V alkaline transistor batteries for the electronics (9 V)
and two 9 V alkaline transistor batteries for the chamber (-18
V) provide over 200 hours of continuous operation.
Weight 6 lb, 6.5 oz (2.9 kg)
Dimensions (H x W x L) Unit: 8 in (includes handle) x 4 7/8 in x 10 7/8 in
(20.3 cm x 10.4 cm x 25.7 cm)
Display: 3.7 in (9.5 cm) Meter scale, marked 0 to 3 and 0 to
10
Environmental Dependence Operating Temperature: -4° F to 104° F (-20° C to 40° C)
Relative Humidity: 0 to 95% non-condensing