Compact Recorder


· Total 32 channels measurement possible by connecting 8 units
· Synchronous sampling up to 20 kHz for 4 channels
· Suitable for on-vehicle test
· LAN interface


The EDS-400A is a compact & lightweight recorder for acquiring 4 channels of strain and voltage signals.

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Compact Recorder


Channels 4
Connector R05-R5F (Tajimi)
Applicable Plug R05-PB5M (Tajimi)
Measuring Targets Strain gages (Full bridge system)
Strain-gage transducers
Applicable Bridge Resistance 120 to 1000 Ω (Full bridge system)
Gage Factor 2.00 fixed
Bridge Excitation 2 VDC
Measuring Range Strain : 1 k, 2 k, 5 k, 10 k, and 20 k ×10-6 strain
Voltage : 1, 2, 5, 10 and 20 V
Accuracy Within ±0.5%
Balance Adjustment (Zero Suppress) ON/OFF setting possible for each individual channel
Adjustment Methods True electron method (Adjustment value is saved in nonvolatile memory.)
Adjustment Range
Strain Input Resistance ±2% (±10000 ×10-6 strain)
Voltage Input ±10 V
Max. Input Voltage ±30 V (For voltage signals)
Frequency Response DC to 20 kHz (Deviation: +1 dB, -3 dB)
LPF Transfer Characteristics : 2nd order Butterworth
Cutoff Frequency : 20, 200, 2 k Hz and FLAT
Amplitude Ratio at Cutoff Point : -3 ±1 dB
Attenuation : (-12 ±1) dB/oct.
*Characteristic of analog section.
A/D Converter 16 bits
Sampling Methods Synchronous sampling of all channels
Sampling Frequencies 1, 2, 5, 10, 20, 50, 100, 200, 500,1 k, 2 k, 5 k, 10 k, 20 k, 50 k, and 100 k Hz (16 steps)
Note: Sampling at 50 kHz is possible for 1 or 2-channel measurement.
Sampling at 100 kHz is possible for 1-channel measurement only.
Operating Switches START/STOP, ZERO, READ
Method of Setting Measuring Conditions From PC or CF card in which measuring conditions are written beforehand
Start/Stop of Recording From PC, panel switch or ext. contact points
Balance Adjustment From PC, panel switch or ext. contact points
LED Lamps POWER : Lights up when the EDS is turned on.
SYNC : Lights up to indicate synchronization condition.
MEAS : Lights up to indicate measurement in progress.
1, 2, 3, 4 : Lights up to indicate channel status.
READ : Lights up to indicate condition setting in progress.
Operation Modes Trigger : START signal from PC or a press of the front panel
START/STOP button starts recording. It stops recording upon recording to a preset number of measured values or when receiving STOP signal from PC or when the START/STOP button is pressed once again.
Operation Modes
Manual START signal from PC or a press of the front panel START/STOP button lets it wait for trigger signal, and starts recording when the trigger condition is satisfied. It stops recording upon recording to a preset number of measured values. Pretrigger data may be included in the number of measured values by setting.
Trigger Functions
Trigger Source External trigger signal, analog input
Trigger Level Set for analog trigger mode only,
in the full scale range in plus and minus directions.
Trigger Slope Up, down or both
Pretrigger Data Points to be Recorded : Set in a range of 0 to 2000.
Backup Functions Setting conditions, balance adjustment data (Saved in the nonvolatile memory)
Connector : RJ-45 modular jack
Monitor Display Waveform, bar graph and numeric data is monitored on the PC via a LAN port.
Data Storage CF card (128 MB to 2 GB, writing speed 45x)
Synchronous Operation Dedicated synchronous cable enables connection of up to 8 units in cascade for synchronized recording. While data is individually recorded in separate files in CF cards inserted into recorders, it is combined to a single file after transferred to the PC.
Operating Temperature 0 to 50°C
Operating Humidity 20 to 90% RH (Non-condensing)
Vibration Resistance 49.03 m/s2 (5 G) (5 to 55 Hz) (When operating)
Power Supply 10 to 16 VDC, approx. 0.6 A (12 VDC)
Power connector: RM12BRD-4PH (Hirose)
Storage Temperature -10 to 60°C
Operating Environment No dust and no induction noise from large-capacity motors, etc.
Dimensions 100 W x 50 H x 110 D mm
(Excluding protrusions)
Weight Approx. 500 g
Standard Accessories DC power cable (P-76)
Compact flash memory card (128 MB)
DVD (Dynamic data acquisition software DCS-100A and instruction manual)
Rubber feet
Optional Accessories Strain input conversion cable U-49 (30 cm)
Voltage input cable U-50 (1.5 m)
Synchronous cable N-79 (20 cm)
AC adapter SA-10A-EDS (100 to 240 VAC) (For U.S.A.: UNI318-1215-EDS)
Bridge connectors DB-120C-2R (2-wire)/DB-120C-3R (3-wire)
Remote control unit RCU-04A
Protect unit EDS-PMF
Synchronous signal long-distance transmission unit (A05-2452)
Data analysis software DAS-200A


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To Ensure Safe Usage

For LAN connection Use a straight cable and hub