3B SCIENTIFIC PHYSICS 3B Netlog 1000541, Инструкция по эксплуатации

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3. Introduction
3B NET log ™ is a multimedia data acquisition
and evaluation system for current and voltage
measurements and for measurements using
sensors. The system can be used with or with-
out being connected to a computer. With the
accompanying 3B NET
lab ™ software, meas-
urements can be conducted with arbitrarily
chosen parameters as well as in prepared
experiments. The prepared experiments take
the user through an interactive experimental
environment where the measurement parame-
ters have already been defined. When used-
within a network, the teacher and students can
mutually monitor their results.
The Ethernet port allows the 3B NET
log ™ unit
to be directly connected to a local network, so
that data can be sent to any computer in the
network for evaluation. In order to use the unit
with Ethernet an intranet in the same sub-
network must be in place.
Without being connected to a computer, the
3B NET
log ™ device can be used as a digital
multimeter for current and voltage measure-
ments. Combined with different sensors, the
3B NET
log ™ equipment can also be used as a
handheld unit with automatic sensor recogni-
tion.
4. Technical specifications
4.1 Analogue inputs
Voltage inputs (channels A and B):
Measuring equipment: 2 Differential amplifi-
ers
Measuring range:
±200mV, ±2V, ±20V
Surge voltage protection: Max. ±40V
Connections: 4-mm safety sockets
Current input (channel A):
Measuring range:
±200mA, ±2A
Excess current protection: Max. ±2.5A
Connections:
4-mm safety sockets
Sensor inputs (channels A and B):
Sensor type:
Analogue
Sensor identification: Automatic
Sensor connections:
8-pin mini DIN sockets
Sampling: Continuous
Sampling rate: 50k samples/s
Resolution: 12 bit
4.2 Analogue outputs (channels A and B)
Reference point (earth): Common
Measuring range:
± 5V
Connections: 4-mm safety sockets
and 8-pin mini DIN
sockets
Sampling rate: 10kSamples/s
Resolution: 12bit
4.3 Digital inputs
Channels: 4 (separated into 2
TTL inputs, one of
which is a high-speed
time input, plus 2 in-
puts via optocoupler)
Sampling rate: 50k samples/s
100k samples/s (high-
speed time input)
Connection: 8-pin mini DIN socket
4.4 Digital outputs
Channels: 6
Signal: TTL
Connection: 8-pin mini DIN socket
4.5 Additional data
Computer connection: USB
Network port:
Ethernet
Internal data memory: 128k
Display:
64 x 122 matrix for
measurements and
units
Power supply: 4.5 V DC/300mA or 3
batteries (AA, LR6 or
AM3); owing to their
longer battery life, use
of alkaline batteries is
recommended.
Dimensions: 21 x 8 x 4 cm
3
approx.
Weight: 400g approx. (includ-
ing batteries)