Measurement

Wide Bandwidth Disk Data Recorder

DS series
End of sale
DS series
| Main features | Main specifications |
The Wide Bandwidth Disk Data Recorder is able to record prolonged, continuous, multi-channel signals exceeding bandwidth frequencies of 100kHz.It is also able to write the recorded data onto the dedicated removable high capacity hard disk at a maximum sampling rate of 1MHz

It can be used as a stand-alone recorder or as an interface when equipped with a 1000Base-T(Gigabit Ethernet), allowing data to be directly recorded to a PC or transferred to a PC via a network. Furthermore, not only does it allow multi-platform synchronized recording, it enables multi-channel recording without a loss to the per unit sampling rate.(due for introduction end of 2003)
It is also equipped with an analog data replay function.(due for introduction end of 2003)
Main features
  • Continuous 16-bit high precision data recording at 1MHz sampling x 16 channel for 20minutes(approx).
  • Continuous data recording of 250kHz sampling 100kHz bandwidth x 32 channel on a hard disk for 2 consecutive hours.
  • A PC card or an MO can be used as recording media. And, the IEEE1394 or 100BASE-TX is an interface.
  • With multi-channel recording function, it offers multi unit synchronized recording.
  • It is equipped with a 16-bit A/D converter on each channel, and a sampling frequency can be chosen between 10kHz to 1MHz for simultaneous samplings on all channels.
  • Continuous recording can be saved on a built-in hard disk drive at a maximum transmission rate of 16 million words /sec.
  • As an input amplifier is also a PA amplifier, which can be directly connected to voltage output type accelerometer and a DC switch.
  • Using a 1000BASE-T data can be transferred at high speed via a LAN or can be saved onto a computer via a network
  • The analog signal while recording can be monitored.
  • Data can be monitored via LAN while recording to the hard disk and the sampling rate frequency set on the channel.
  • It can be equipped with an analog output amplifier.
    (By the end of 2003, the sampling frequency of the D/A converter will be equal to or less than 500kHz)
  • The AU-BNC32 32-channel extension BNC unit and the PL-S1001LX View waveform display and removal software are available as options.
Main specifications
Input Balanced input for AC coupling mode and DC coupling mode(need an optional BNC unit for
unbalanced input), unbalanced input for IEPE.
Input Mode AC coupling/DC coupling/IEPE
Input Range ± 0.1 Vp, 0.2 Vp, 0.5 Vp, 1 Vp, 2 Vp, 5 Vp, 10Vp, 20Vp Approximately±130% full range
Maximum Applicable Voltage ±30Vp
Input Impedance 100kohms
Sensor Power Supply 24V DC/4 mA
TEDS IEEE 1451.4 Basic TEDS V0.9
Input Connector Recorder Main Unit: Multi-connector 16 channels/connector x 2(32 channels input model)
Anti-aliasing Filter 1MHz sampling: analog filter 400kHz(-3dB) 6th order butterworth fixed
Switched Capacitor Filter Method at 512 samples/sec or less: Set a cut-off frequency automatically at
1/2.5(40%) of the selected sampling rate.(ON/OFF setting available)
Fixed at OFF when using an external sampling(Above 400kHz filter is effective.)
No. Of Channels 2/4/8/16/32(/64) Max. 16 channels at 1MHz sampling
Max. 32channels 500kHz sampling or less(16 channels/board x 2)
Within the recording and playback rate specified below.
Frequency Response
(Recording)		 AC coupling mode:0.1Hz(-1.5dB) -400kHz(-3dB)
DC coupling mode:DC-400kHz
Quantization 16bits 15bits at Channel 1 only to be used for Trigger condition status bit of LSB 1bit(fixed)
Recording File Format Header file contains the setting parameter information and Binary data files.
Remarks: There are a system management data area to be offset on the binary data. Copy function of the browser control or the LX View software can negotiate it to be invisible for the actual numbers of recording data.
Max. Sampling Rate 1MHz
Max. Recording and Playback
Rate		 16M words/sec(32MB/sec), support a direct recording to the internal hard disk drives only at the Maximum playback rate: 8M words/sec(cannot playback at 1MHz sampling rate.)
Minimum recording and playback rate: 500k words/sec or higher.
Sampling Method Simultaneous sampling for all channels
Sampling Rate
  • 1MHz/500kHz/250kHz/125kHz/62.5kHz/31.25kHz
  • 400kHz/200kHz/100kHz/50kHz/25kHz
  • 40kHz/20kHz
  • 256kHz/128kHz/64kHz/32kHz
  • 512kHz/409.6kHz/204.8kHz/102.4kHz/51.2kHz/25.6kHz
  • 40.96kHz/20.48kHz
  • 384kHz/192kHz/96kHz/48kHz/24kHz
Within the recording and playback rate specified above.
Recording Times Depends on setting combination of the recording channels and the sampling rate.
Example: 16 channels 1MHz sampling approximately 70minutes,
32 channels 250kHz sampling approximately 2.5 hours
Sampling Clock Internal, External(TTL)
Sampling Start Internal, External(TTL)
Range Accuracy(Recording) ±2% or less(Target)
Linearity(Recording) 256kHz sampling or lower ±0.2%
384kHz -1MHz sampling ±0.5%
Distortion(Recording) 0.2%(512kHz sampling or lower) 0.5%(1MHz sampling)
Drift(Recording) ±0.2%(10minutes after power ON to Hard disk full recording state)
Dynamic Range(Recording) 77 dB(within recording bandwidth, 256kHz sampling filter ON ±1 Vp range)(Typical)
S/N(Recording) 76 dB(within recording bandwidth, 256kHz sampling filter ON±1 Vp range)(Typical)
Level Trigger Method By using a digital comparator, selectable trigger rising/falling edge.
Pre-trigger Yes, effective only when the recording to the internal hard disk drive is selected.
Event Yes(200marks within a single recording file)
Voice Memo Recording Use Channel 1 for either data or voice memo channel.
Voice memo input jack
Voice memo is recorded at the same sampling rate of one for data. After transferring recorded data file to a PC, use the LX View to extract and to convert WAV file to listen to at the PC.
(Memo voice playback is possible at the DS unit installed the analog output amplifier.)
Storage Internal removable hard disk drive(RAID0) x 2
Recorder Key Operations REC/START/STOP/PAUSE/EVENT
Input Level Display By using LED to display the input status of each channel.
No flash: Input level ±less 5% Green: ±5% to approximately +/- 50%
Orange: ±51% to approximately 125%
Red: Excess input approximately more than ±125%
Interface Ethernet 1000BASE-T ×1(with Auto negotiation 10/100/1000)
Internal Clock Set By using the PC.
Power Supply/Consumption 100V to 230V AC 140VA(DS-320R)
Vibration Equivalent specification to one of a general personal computer
Operating
Temperature/Humidity		 5ºC to 35ºC
85% RH or less(no condensing)
Dimensions（W×H×D) 380mm×162mm×450mm
Weight 23kg(DS-320R)
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