General Catalogue Chemistry - BECO Internacional LTDA.

ecology
667 917
667 922
Digital field meter
For measurement of magnetic and electric
alternating fields (electrosmog), e.g. under high
voltage lines, in the vicinity of electric devices
(monitor), in work rooms, close to railways, in
the vicinity of electric coils, and for testing the
effectiveness of electromagnetic screening
(Faraday's cage).
· Fast response
· LCD display for reliable readings
· Automatic battery monitor
· Simple to use
Detailed operating and experiment instructions
in German are included with the instrument.
Display: LCD 2 1/2 digits, 13 mm high
Measurement ranges:
Magnetic field: 200, 2,000, 20,000 nT
Electric field: 20, 200, 2,000 V/m
Accuracy (at 50 Hz):
Magnetic field: ± 5%
Electric field: ± 10%
Frequencies:
without filter: 16 Hz ... 100 kHz ± 1 dB
with filter HP 50: 50 Hz - 100 kHz ± 1 dB
with filter TP2K: 16 Hz - 2 kHz ± 1 dB
Probe: 138 x 40 x 24 mm
Power supply: 9 V battery (included)
Dimensions: 158 x 85 x 45 mm
Weight: 0.4 kg
18 LEYBOLD DIDACTIC · GENERAL CATALOGUE CHEMISTRY
667 917
Anemometer
Hand-held instrument for straightforward wind
speed measurements.
With pointer lock for fixing the measured value.
Measurement ranges:
0 … 120 km h -1
0 … 35 m s -1
0 … 12° Beaufort
0 … 70 knots
Cup wheel dia.: 10 cm
Height: approx. 20 cm
Electrosmog Noise pollution
667 922
666 231
666 231
Sound level meter
For linear and aurally compensated (dBA)
measurement of sound levels. The device can
be matched to level variations by applying
various time evaluations. The device can store
up to 4000 measured values.
The measurement data can be transmitted to
a PC for further evaluation via a serial cable
(> 666 251)
Measuring range: 20 ... 135 dB
Type of measurement: dB (linear) or dBA
(aurally compensated)
Time evaluation: slow (1 s), fast (0.125 s)
Display accuracy: 0.1 dB
Measurement accuracy: ± 1.5 dB
Frequency range: 20 Hz ... 20 kHz
Storage function: 4000 measured values
Interface:
serial (RS 232) for computer connection
Voltage supply: 9 V battery
Length of microphone lead: 1 m
Dimensions:
housing: 210 · 85 · 37 mm
microphone: 100mm x 12 mm dia.
weight: 0.3 kg
Scope of delivery
1 Sound level meter
1 Microphone
1 9 V battery