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Specifications
Number of channels :
2
Input format :
Unbalanced
Input coupling :
DC (DC mode)/AC (PA mode)
Input impedance :
100 kΩ
Input range :
±0.5, 1, 2, 5, 10, 20 Vp (DC mode)
±0.1, 0.2, 0.5, 1, 2, 5, 10, 20 Vp (PA mode)
Range accuracy:
±1% or better
Frequency response :
DC to 80 kHz (±1.5 dB, DC mode)
0.1 Hz to 80 kHz (±1.5 dB, PA mode)
Linearity:
±0.1% or better
S/N ratio:
71 dB (typical), 65 dB or better (sampling fre-
quency: 50 kHz; input range: 1 V; LPF: 20 kHz)
Low pass filter :
2, 4, 8, 20, 40, 80, 200, 400, 800 Hz,
2 k, 4 k, 8 k, 20 k, 40 k, 80 kHz
±3 dB at the cutoff frequency
Attenuation: –48 dB/oct
Sensor power supply :
18 V DC/0.5, 3, 5 mA (PA mode)
A/D converter :
16-bit
Sampling frequency :
1 Hz to 200 kHz
Input connector :
BNC
Settings
The following dialog box appears when you choose Setup and Params, and
then double-click the channel that you want to set.
Channel :
Select ENABLE to record with this channel, or select DIS-
ABLE not to record with this channel.
Range :
Select the input range.
Sample Frequency : You can select 10 times the Base Sample Freq
when you turn on Multi Sampling check box.
Channel Name : You can name the channel. Use up to 16 alphanumeric
characters.
Filter :
Select the filter cutoff frequency.
PA :
Select the sensor power supply. Set to OFF in DC mode.
All Pa Amp Same Condition : When this option is selected, the same
parameters are set for all signal conditioners of the same type.
DC mode: Not supply power to the sensors.
PA mode: supplies power to the sensors.
When you record in the PA mode for the first time
after power-on, or when you switch from the DC
mode to the PA mode, leave the unit in the Rec
Standby mode for about one minute before Rec
Start to stabilize the amplifier.
Enable both channels of a slot.
Filter cutoff frequency is set slot by slot, not channel
by channel.
Amplifiers
4-35
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