User Manual

5.2 Analog Input Section
97
5.2.8 Model 8956 Analog Unit
Temperature and humidity
range for guaranteed
accuracy
Period of guaranteed
accuracy
23 ±5°C (73±9°F), 30 to 80% RH (when zero adjustment is executed 30 minutes after
power on)
1 year
The number of input
channels
2 channels
Measurement ranges 5, 10, 20, 50, 100, 200, 500 mV/div, 1, 2, 5, 10, 20 V/div
DC amplitude accuracy ±0.4%f.s. (filter 5 Hz ON)
Zero position accuracy ±0.1%f.s. (filter 5 Hz ON, after zero adjustment)
Temperature characteristic Gain: ±0.03%f.s./°C
Zero position: ±0.05%f.s./
°C (after zero adjustment)
Frequency characteristic DC coupling: DC to 10 MHz ±3 dB
AC coupling: 7 Hz to 10 MHz ±3 dB (low cut-off frequency: 7 Hz±50%)
Noise 1.5 mV p-p typ., 2 mV p-p max. (sensitivity range, with input shorted)
Common mode rejection
ratio
80 dB minimum (at 50/60 Hz and with signal source resistance 100 Ω maximum)
Low-pass filter OFF, 5±50%, 500±50%, 5k±50%, 1M±50% (Hz) -3 dB
Input type Unbalanced (input isolated from output)
Input coupling DC, GND, AC
Input resistance 1 MΩ±1%
Input capacitance 40 pF±10 pF (at 100 kHz)
A/D resolution 12 bits
Maximum sampling rate 20 MS/s
Input terminals Insulated BNC terminal
Maximum input voltage 400 VDC
Insulation resistance,
dielectric strength
1.5 kVAC for 15 seconds (between input module and chassis, and between input mod-
ules)
At least 100 M
Ω at 500 V DC
Maximum rated voltage to
earth
300 V AC/DC (between each input channel and chassis, and between input channels)
Operating temperature and
humidity ranges
Same as the host Memory HiCorder
Operating environment Same as the host Memory HiCorder
Storage temperature and
humidity ranges
-10 to 50°C (14 to 122°F), 80% RH or less (non-condensating)
Effect of radiated radio-
frequency electromagnetic
field
±15%f.s. at 3 V/m max.
Effect of conducted radio-
frequency electromagnetic
field
±28%f.s. at 3 V max. (100 mV/div with 1 V DC input)
Dimensions Approx. 170W x 20H x 148.5D mm (6.69”W x 0.79”H x 5.85”D) (sans protrusions)
Mass Approx. 290 g (10.2 oz.)
Applicable Standards
Safety
EMC
EN 61010 Pollution degree 2,
Measurement category II (anticipated transient overvoltage 2500 V)
EN 61326 Class A