409
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19.2 Analog Inputs
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19.2.6 8940 F/V UNIT
A/D resolution
12 bit
Vertical axis resolution
80 LSB/DIV
Measurement function
Frequency measurement, Count, Duty, Voltage measurement,
Current measurement
Maximum sampling speed
1μs
Low-pass filter
OFF,5,500,5k,100k±50%（Hz）-3 dB
Input coupling
DC, GND, AC
(Fixed DC coupling except voltage and current measurement )
Pull up
ON/OFF (Constant OFF in current measurement)
Pull up resistance: 10 kΩ
BNC connector
Input resistance: 1 MΩ±1% (at pull-up OFF)
Input capacitance: 60 pF±20 pF (at 100 kHz)
Input type: Unbalanced (for Voltage, Frequency, Count, Duty)
Note: With the 3273, the BNC connector and sensor connector are used
together. GND is common with the MEMORY HiCORDER in which the
unit is installed.
Sensor connector (Current
measurement)
Possible to connect 4 channel
Note: With the 3273, the BNC connector and sensor connector are used
together. GND is common with the MEMORY HiCORDER in which the
unit is installed.
Maximum input voltage
30 Vrms or 60 VDC
Maximum rated voltage to
earth
30 Vrms or 60 VDC（BNC）
Operational ranges for
temperature and humidity
Same as the MEMORY HiCORDER in which the 8940 is installed
Location for use
Same as the MEMORY HiCORDER in which the 8940 is installed
Temperature and humidity
ranges for storage
Temperature: -10
o
Cto50
o
C (14
｡
Fto122
｡
F)
Relative humidity: 80%RH maximum (with no condensation)
Dimensions
Approx. 170W×20H×148.5D mm (6.69"W×0.79"H×5.85"D) (excluding
projections)
Mass
Approx. 300 g (10.6 oz)
Effect of radiated radio-
frequency electromagnetic
field
±5% f.s. at 3 V/m
Standard Applying
EMC EN61326, Class A
Safety EN61010
Pollution Degree 2, measurement categoryⅠ
(anticipated transient overvoltage 330 V)
Accessories
Instruction manual
Option
9318 CONVERSION CABLE
( for 9270*,9271*,9272*,9277,9278,9279* )
9319 CONVERSION CABLE ( for 3273)
*: Not complied with the CE marking.
Accuracy at 23
o
C
±
5
o
C, 35% to 80%RH after auto-balancing,
after 30-minutes warming-up time. Accuracy guaranteed for 1 year
■ General specifications
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