Dynamic Strainmeters Digital type
Multi-channel Dynamic Strainmeter DS-50A
Cable-connecting up to 20 units, 50 channels per unit, allows simultaneous sampling measurement of up to 1000 channels. Capable of measuring 100-Hz occurrences at a fastest sampling of 1 kHz. Allows cable connection between devices of as much as 100 m, for wide-area, multi-channel dynamic strain measurement not possible with conventional dynamic strain measuring instruments.
- Features
- Simultaneous measurement of 20 sets (1,000 channels) is available at the maximum.
- 1 kHz sampling at the fastest when 1 set is used.
- Accommodates mixed strain and voltage units
- Comes standard with measurement software
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Specifications
Type DS-50A Number of channels 50 channels
Strain unit, voltage unit and thermocouple unit can be mixed.
10 channels / 1 unitSynchronization Maximum 20 sets (1,000 points) Sampling speed 1 to 10,000 ms *1 Interface LAN (100 BASE-TX) External dimensions 420(W) x 110(H) x 298(D) mm (excluding projected parts) Weight Approx. 5 kg *1 : The sampling speed is added 1 ms with connecting each one set.
Strain unit Number of channels 10 channels Gauge resistance Quarter bridge 3-wire system 120 Ω, 350 Ω
Half bridge system 120 to 1,000 Ω
Full bridge system 120 to 1,000 ΩBridge excitation DC 2 V Measuring accuracy ±0.05 ％FS（at 23±5℃） Measuring range ±25000 x 10-6 strain Frequency response DC to 100 Hz Voltage unit Number of channels 10 channels Measuring range ±20 V Frequency response DC to 100 Hz Thermocouple unit Number of channels 10 channels Measuring range T : -250 to +400 ℃
K : -210 to +1370 ℃
J : -200 to +1200 ℃Frequency response DC to 10 Hz
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Digital dynamic strainmeter DRA-162B
This carrier wave type dynamic strainmeter is designed for on-line measurement using a personal computer.
Input waveforms are continuously digitized, recorded in the internal memory, and transferred to a PC.
Since dynamic phenomena can be captured numerically, data analysis using a PC is easily possible.
Equipped with a data memory of 256k words/channel, data trigger start and pre-trigger recording are also possible.
It also provides analog outputs similar to those of ordinary dynamic strainmeters.
All operations are performed from a PC via a LAN interface.
In addition to strain gage and strain gage transducers, voltage measurement is also available.
- Features
- Built-in 16-bit A/D converter for each channel, waveform recording by digital value
- Built-in 256k words/channel data memory (for 16 channels)
- Remote sensing of bridge voltage minimizes sensitivity degradation during cable extension (up to 100 m)
- Each setting can be PC-controlled
- Data backup possible on the main unit of the instrument
- Bridge voltage switching (0.5 VAC, 2 VAC) can be set independently for each channel
- Built-in check functions (sensitivity, input open, over, insulation)
- Capable of transferring recorded binary data over a LAN at a rate of approx. 500 kwords/second
- TEDS sensor data readable
- Card-type internal configuration for easy maintenance
- Synchronous measurement is possible with up to 16 units (256 channels) connected
- DRA-7162 acquisition software is included as standard equipment.
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Features
Type DRA-162B Measuring object Strain gauge, strain gauge transducer
DC voltageNumber of channels 16 channels Measuring range ±32,000×10-6 strain
(Gage factor fixed at 2.00)Frequency response DC to 2.5kHz External dimensions 428(W)×148(H)×320(D)mm Weight Approx. 11kg Power supply AC100-240V 50/60Hz
130VA MAX
Smart Dynamic Strain Recorder DC-204R / DC-204Ra
200-kHz high-speed sampling possible in 1-channel mode — connect 8 units at the same time for simultaneous sampling of up to 32 channels.
The DC-204Ra has analog output (±5 V) function for external recorder or automotive ECU.START/STOP button on front allows start of measurement by trigger setting, external trigger, control by external start/stop signal, etc.
- Features
- 4-channel configuration with miniature size like postcard
- 200 kHz sampling (at the fastest in 1-channel mode)
- Simultaneous 50 kHz sampling for 4 channels
- Capable of measuring a large strain of up to 80000 x 10-6 strain (with 0.5 V excitation)
- Data recording in compact flash card of 2 Gbyte capacity
- Automatic data protection against power failure. When the power is droped unexpectedly, stops measurement and stores data before turning off the power.
- Data format conforms to DADiSP format
- External start / stop and external trigger
- Sensor open-circuit check function
- USB Interface installed and standard control software supplied
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Specifications
Type DC-204R / DC-204Ra Measuring object Strain
DC voltage (with optional CR-4010, CR-4020)
Thermocouple (with optional TA-01KT)Number of channels 4 channels Measuring range ±20000 x 10-6 strain (at 2 V excitation)
±80000 x 10-6 strain (at 0.5 V excitation)Frequency response DC to 10 kHz (-3 dB±1 dB) Gauge resistance 120 to 1000 Ω (full bridge) Maximum sampling speed 5 μsec (1 ch), 10 μsec (2 ch), 20 μsec (4 ch) Analog output
(DC-204Ra only)Voltage output: ±5 V (5 kΩ load) ±1 mA
Output accuracy: ±0.3 %FS
Calibration output: ±1 V (added to the input value)External dimensions 84(W) x 42(H) x 157(D) mm Weight Approx. 500 g Power supply DC 10 to 16 V 0.4 A MAX.
PC control Dynamic Strainmeter DC-004P
The DC-004P is a PC control type dynamic strainmeter. It stores measured data in a PC which is connected via USB interface, without having a recording medium in the strainmeter. Since a continuous recording is possible, this strainmeter is most suited to measurement such as material testing.
- Features
- Manual trigger, data trigger and Interval trigger can be executed at the same time
- 50 kHz sampling (at the fastest in 1-channel mode)
- Simultaneous sampling of 12.5 kHz for 4 channels (4-channel type)
- Capable of measuring a large strain of up to 80000×10-6 strain (with 0.5 V excitation)
- Direct recording on a PC
- Supporting long term measurement
- 4-channel type and 2-channel type are supportable
- Measured data conforms to DADiSP format
- TEDS compatible
- Control software (DC-7004P) supplied as a standard accessory
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Specifications
Type DC-004P Measuring object Strain
DC voltage (with optional CR-4110, CR-4120)
Thermocouple (with optional TA-01KT)Number of channels 4 channels (4-channel type), 2 channels (2-channel type) Measuring range ±20,000 x 10-6 strain (at 2 V excitation)
±80,000 x 10-6 strain (at 0.5V excitation)Frequency response DC to 2 kHz Applicable gauge resistance 120 Ω, 350 Ω (Full bridge) Maximum sampling speed 20μsec. (1-channel mode), 40μsec. (2-channel mode), 80μsec. (4-chaanel mode) External dimensions 120(W) x 50(H) x 180(D) (except projecting parts) Weight DC-004P : 4 channels type Approx. 600g
DC-004P (-2) : 2 channels type Approx. 500gPower supply DC 10 to 16 V 0.3 A Max. (when supplied from DC jack)
*Can be supplied from USB buspower
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Handheld Dynamic Strainmeter DH-14A
The DH-14A is a handheld and battery-operated dynamic strainmeter having 4 measurement channels. Dynamic strain is easily measured while monitoring numerical values and wave forms. Trigger measurement mode and free-run measurement mode are available. The DH-14A is well suited not only for measurement in fieldwork or on moving object, but also for checking sensors and input noise as a checker. Using 4 AA alkaline batteries commercially available, the meter allows measurement for 4 consecutive hours (or for 6 hours in power saving mode).
- Features
- Simultaneous sampling of 4 channels
- Measured data indicated by waveform
- ECO mode (power saving mode) equipped
- Powered by 4 AA alkaline batteries
- Measured data conforms to DADiSP format
- TEDS compatible
- Tie Bar Measurement Function
- X-Y Graph Display Function
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Specifications
Type DH-14A Measuring object Strain
DC voltage (with optional CR-4110, CR-4120)
Thermocouple (with optional TA-01KT)Number of channels 4 channels Measuring range ±20,000 x 10-6 strain (at 2 V excitation)
±80,000 x 10-6 strain (at 0.5 V excitation)Frequency response DC to 1 kHz (-3dB±1dB) Applicable gauge resistance 120 Ω, 350 Ω (Full bridge) Maximum sampling speed 50μsec (1-channel mode), 100μs (2-channel mode), 200μs (4-channel mode) External dimensions 150(W) x 63(H) x 150(D) mm (except projecting parts) Weight Approx. 1 kg Power supply 4 AA-size (LR6) alkaline batteries
AC adaptor (optional) -
Added Tie Bar Measurement Function
A Tie Bar Measurement function has been added to the monitor display features. Unlike the other measurement functions, this feature is specifically designed for measuring tie bar loads.
Tie Bar Load Measurement
The Tie Bar Load Measurement function measures the loads applied to the four tie bars of an injection molding machine or similar equipment during operation.
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Two Stress Auditors are installed diagonally on each tie bar, and the average of the two measurement values is used. ・
Two tie bars are measured simultaneously using four channels (four Stress Auditors). By repeating this procedure twice, all four tie bars can be measured. ・
Based on the measured values of the four tie bars, the software calculates and displays the measurement results, including the load for each tie bar, the average value, the total value, and the balance (%). Display units are selectable from με, kN, and tf. 
Measure all four tie bars
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Added X-Y Graph Display Function
An X-Y Graph Display function has been added to the monitor display features.
X-Y Graph Display
The X-Y Graph displays the relationship and magnitude of measurement values from two channels as a two-dimensional plot.・ Up to three X-Y graph pairs can be displayed simultaneously. ・
Measurement channels and X-/Y-axis assignments can be configured independently for each graph. ・ Display scales can be configured individually for each graph and each axis. ・ Numeric values can also be displayed. ・ Plotted data can be cleared at any time. 
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