3B SCIENTIFIC 3B Netlog Buku Petunjuk - Halaman 2
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Halaman Cetak4. Technical specifications
4.1 Analogue inputs
Voltage inputs (channels A and B):
Measuring equipment: 2 differential amplifiers
Measuring range:
Surge voltage protection: Max. ±40V
Connections:
Current input (channel A):
Measuring range:
Excess current protection: Max. ±2.5A
Connections:
Sensor inputs (channels A and B):
Sensor type:
Sensor identification:
Sensor connections:
Sampling:
Sampling rate:
Resolution:
4.2 Analogue outputs (channels A and B)
Reference point (earth): Common
Measuring range:
Connections:
Sampling rate:
Resolution:
4.3 Digital inputs
Channels:
Sampling rate:
Connection:
4.4 Digital outputs
Channels:
Signal:
Connection:
±200mV, ±2V, ±20V
4-mm safety sockets
±200mA, ±2A
4-mm safety sockets
Analogue
Automatic
8-pin mini DIN sockets
Continuous
50k samples/s
12 bit
± 5V
4-mm safety sockets
and 8-pin mini DIN
sockets
10 kSamples/s
12 bit
4 (separated into 2
TTL inputs, one of
which is a high-speed
time input, plus 2 in-
puts via optocoupler)
50k samples/s
100k samples/s (high-
speed time input)
8-pin mini DIN socket
6
TTL
8-pin mini DIN socket
4.5 Additional data
Computer connection: USB
Internal data memory: 128k
Display:
Power supply:
Dimensions:
Weight:
5. Description
5.1 Components
2
64 x 122 matrix for
measurements and
units
4.5 V DC / 300 mA or
3 batteries (AA, LR6 or
AM3); owing to their
longer battery life, use
of alkaline batteries is
recommended.
3
21 x 8 x 4 cm
approx.
400g approx. (includ-
ing batteries)
1 Display
2 Operating controls
3 Current input for chan-
nel A
4 Voltage outputs for
channels A and B
5 Voltage inputs for
channels A and B
6 Digital outputs
7 Digital inputs
8 Analogue
outputs
and B
9 Analogue inputs A and
B
A