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Force and mechanical measuring equipment
The R4K-80 series is a high-performance programmable DC power supply. 4-digit digital meter and new high-resolution D/A and A/D converters are added for more accurate settings and readings. Of course, the innovative compact dimensions, variable range features and high operability remain the same as the traditional RK-80 series. This product line is the best DC power supply for a variety of applications, from laboratory experiments to automated production lines.
4-digit digital meter (output voltage and current)
High-resolution D/A, A/D converter integrated
As one click of the rotary encoder is one count, the fine setting is possible.
Digital interface as standard function
Digital interface shall make data logging and automatic measurement easier.
* Conversion adapters suitable for RS-232C, RS-485 or GPIB are separately required.
Various waveforms with pulse and ramp sequence function at will
With pulse/ramp sequence function (optional), various test patterns can be set without a computer.
Output voltage and output current can be set speedily.
When setting output voltage and output current by the rotary encoder on the front panel, every time a fine switch is pressed, the setting digit on the digital display will be switched. In the case, of setting a small output value or changing the setting value widely, the setting can be done speedily. (Fine switch cannot be used when output value is set by remotely.)
Useful new feature of variable setting range
Set voltage/current value within 80 W, then turn on output
* Not automatic range change which can output 80 W all the time. Resetting is required.
Quick access to functions needed
| Model | Output | Ripple *1 (rms) | Minimum setting unit *2 | AC input | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Voltage [V] | Current [A] | Power [W] | Voltage | Current | Voltage | Current | Input Voltage | Input Current (typ.) | Power factor (typ.) |
||
| 100V | 240V | ||||||||||
| R4K-80L | 0 to 16 V | 0 to 10A | 80 W | 5 mV | 10 mA | 10 mV | 10 mA | 85 to 264 Vac 50 to 60 Hz single phase |
1.1 A | 0.5A | 0.99 *3 |
| R4K-80 | 0 to 36 V | 0 to 5A | 5 mV | 4 mA | 10 mV | 1 mA | 1.1 A | 0.5A | 0.99 *3 | ||
| R4K-80M | 0 to 110 V | 0 to 1.3A | 10 mV | 2 mA | 100 mV | 1 mA | 1.1 A | 0.5A | 0.99 *3 | ||
| R4K-80H | 0 to 320 V | 0 to 0.5 A | 20 mV | 1 mA | 100 mV | 0.1 mA | 1.1 A | 0.5A | 0.99 *3 | ||
Memorize three voltage and current settings in addition to the standard preset values.
There is no need to adjust the output when different settings, and convenient function for production inspection process or testing which requires frequent data taking.
When supplying power to loads with capacities like batteries and capacitors, the sink current suppression is used to reduce the reverse current flowing from the load to the unit in order to prevent a voltage drop on the load as the output is OFF or the set voltage is lowered.
When turning OUTPUT ON/OFF, you can start or stop the output operation with some delay. The function is available not only for a single power supply but also for multiple units of Matsusada Precision DC power supplies in the digital interface *1 which are individually set values of output voltage/current in addition to a single power supply. *2
* +1 and +8 can be set respectively in 0.0 s to 99.9 s.
Two-level lock is selectable: “Full Lock” for locking all the switch operations and “Standard lock” for locking except for the output ON/OFF.
“Full lock” is used to prevent all erroneous operations, and “Standard lock” is for readily applying the emergency
stop along with misoperation prevention, which can ensure a “safe” operation.
(Emergency stop by the power switch is available in both two lockings. )
Locks all the switch operations except canceling the lock function.
It is especially suited to prevent misoperations in the remote control.
Locks the voltage/current setting switches.
It can prevent mistakenly changing the output setting in local control and immediately applying an emergency stop.
Sink current 1 mA
* +S is common. So external control voltage shall be input with +S as reference. Otherwise, it can cause failure.
This interface is Matsusada Precision's proprietary dedicated digital communication port. This interface has modular type IN and OUT ports to allow daisy-chain connection. Combined with an adapter (sold separately). Multiple power supplies can be controlled at once. Adapters for LAN, USB, RS-232C, RS-485, and GPIB are available so that you can choose a suitable communication interface. One-control operation by master/slave connection is also possible.
When noisy environment is presumed, the following -LGob option (optical interface) is required.
| Control function |
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| Write function |
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| Reading function |
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* Minimum value of each model is the same as the minimum display of the front panel meter.
Dual tracking control enables both positive and negative outputs simultaneously in master/slave control. In addition, using the slave local mode, the dual tracking operation can consist of multiple outputs. The positive and negative output voltages (+V and -V) in dual output will output in synchronization with turning on the power of the master machine.
* The function is unavailable for -LUs1 and -LEt options.
Using the same multiple units of the R4K-80 series, the output voltage and output current can be increased by connecting the outputs in series or parallel.
Local control or digital master/slave control is recommended for control.
The external output ON/OFF terminal LS- is connected to the + output, so do not connect it to the commons of other power supplies.
The total output voltage is up to 250 V. The output voltage exceeds 250 V is unavailable in a series connection. The appearance will be the smallest value.
Use the same value for voltage setting in parallel connection. The appearances are the sum of each appearance. In order to prevent damage, set the OVP level of all the power supplies to the maximum.
+output and -output are available.
Sequential operation is possible by using voltage and current set on each memory a, b, and c in combination with a multi-set function. Not only continuous operation, but also it is possible to specify the times. It is best to fit evaluation tests for products as various operations, like a repeat of a and b only or a repeat of b, c, and off only, are enabled by setting the time of memory a, b, c, and off to 0.0.
ta, tb, tc, and toff can be set to 0.0 s, 1.0 s to 99.9 h, respectively
It enables to make ramp action up to the set voltage or current (or from the set voltage or current to 0 V or 0 A). It is useful to like to increase/decrease voltage or current slowly.
* As for ramp operation, you can select “Both of set voltage and current”, “Voltage setting only”, or “current setting only”.
t1 and t2 can be set to 0 to 999 s, respectively
It is also possible to use pulse combined with ramp action. If the multi-set function is combined with the process, it is able to make pulse action by using voltage or current set on memory a, b, and c. Not only continuous operation, but also it is possible to specify the times. It is useful in many aspects as it is possible to increase/decrease voltage or current slowly up to 3 set values.
Range of 0 to 999 s for t1 to t4 and range of 0.0 s,
1.0 s to 99.9 h for ta to tc and toff can be set respectively.
Pulse sequence actions at master/slave and output signal to slave units at ramp action are transmitted. By this function, it is possible to make slave units to output on different output conditions from the master unit.
* The master follow function is only available with the standard interface.
Easy programming of sweep operation!
With the -LDe option, the available sweep commands are adapted by setting the arrival time and arrival conditions (voltage/current). Since there is no need to set commands that are repeated step by step, it is easier to create new programs and change conditions, saving a great deal of operation time. It also contributes to securing time for development, research, etc.
Example of usage that sweeps from constant value to undo it after attainment
Pulse and Ramp Sequence
For details ”Functions”.
Enable digital control via LAN.
• HUB shall be required between R4K-80 and the computer when controlling multiple R4K-80.
• This option, digital interface is not attached. For more information on the digital interface, refer to CO/USB series datasheet.
• Master/Slave function is unavailable.
Select the optional optical interface port (-LGob) when using this DC power supply under the following conditions.
High isolation voltage
With an isolation voltage by ±1kV, more R4K-80 series power supplies are available in series connection.
Enable digital control via USB.
• This option, digital interface is not attached. For more information on the digital interface, refer to CO/USB series datasheet.
• Master/Slave function is unavailable.
Changing of communications cables
The CO-M cable length can be selected from 0.15 meters or 0.5 meters. Select one of the two types above.
* Selecting each individual option simultaneously in -LEt, -LGob, -LUs1, and -L(Mc0.5) or -L(Mc0.15)
When ordering, add Option No. to Model No. in alphabetical order followed by the input voltage.
Example:R4K-80-LDeGobHIc, R4K-80L-LDeHIcUs1
Example of communication with a digital adapter
Example of communication with optical fiber
| Standard | CABLE TYPE1 |  |
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125 V / 10 A | 2.5 meters
Fixed length |
|---|---|---|---|---|---|
| Sold separately | CABLE TYPE3 | |
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250 V / 10 A | 2.5 meters
Fixed length |
| Sold separately | CABLE TYPE4 | |
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250 V / 10 A | 2.5 meters
Fixed length |
| Sold separately | CABLE TYPE13 | |
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250 V / 15 A | 2.5 meters |
Select an appropriate AC input cable according to your operating environment and region. If you use the R4K-80 series in Europe, please be sure to contact our sales representatives.
Various accessories are available for convenient use of the unit.
The stand is useful to use as a single unit.
For applications that require two to six units combination. Dual, triple, and quad-multiple operations are possible.
* A Cooling fan is needed for more than three units combination.
Maintenance :
► Please re-calibrate after use for a certain period through our purchase store. Local Vietnam : SEMIKI CORP
DISTRIBUTED BY:
Semiki instrumentation Co., Ltd
Email: sales@semiki.com
Office tel: +84 28 2253 3522
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