Ultra Slim programmable DC Power Supply
Width: Only 1.38 inches / Output Power: 80W
- Voltage range: 16V to 320V
- Current: 0.5A to 10A
- Power: 80W
- Width: 1.38 inches
Ultra Slim Sophisticated Benchtop Power Supply
R4K-80 series is a high-performance programmable DC power supply. The 4-digit digital meter and high-resolution D/A, and A/D converters are added newly for more precise settings and reading. Needless to say, the innovative compact size, variable range feature, and high operability are remaining the same as the conventional RK-80 series.
The series is the best DC power supply for a variety of applications from laboratory experiments to automated line productions.
Features and Benefits
- Compact and light-weight space-saving design
- Very quiet due to the adopting naturally-cooled system without a cooling fan
- Wide output range
R4K-80L:16 V/10 A, R4K-80: 36 V/5 A , R4K-80M: 110 V/1.3 A, R4K-80H: 320 V/0.5 A - Unique low noise power conversion technology for research application
- Power factor correction and universal input
- Multiple units operation with master/slave and digital interface (option)
Useful NEW Five Additional Functions
- 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 the data logging and automatic measurement easier.
* Conversion adapters suitable for RS-232C, RS-485 or GPIB is separately required.
- Various waveforms with pulse and ramp sequence function at will
- With pulse/ramp sequence function (optional), various test pattern can be set without 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.)
New user-friendly functions
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.
New and useful functions and stylish front panel design!
Quick access to functions needed
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No.1Preset setting is automatically displayed when output is off.
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No.2 OCP is added for more safety operation.
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No.3 Quick lock with one touch action. Two selectable lock options.
Models
| 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.) |
||
| 100 V | 240 V | ||||||||||
| R4K-80L | 0 to 16 V | 0 to 10 A | 80 W | 5 mV | 10 mA | 10 mV | 10 mA | 85 to 264 Vac 50 to 60 Hz single phase |
1.1 A | 0.5 A | 0.99 *3 |
| R4K-80 | 0 to 36 V | 0 to 5 A | 5 mV | 4 mA | 10 mV | 1 mA | 1.1 A | 0.5 A | 0.99 *3 | ||
| R4K-80M | 0 to 110 V | 0 to 1.3 A | 10 mV | 2 mA | 100 mV | 1 mA | 1.1 A | 0.5 A | 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 | 0.5 A | 0.99 *3 | ||
- The ripple applies from 10% to 100% of the rated output.
- The value at local control. More precise settings can be available with remote digital control. Please see "Various Digital Control Functions".
- Maximum output @115 Vac input
Functions
Three position preset memory function
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 require frequent data taking.
Sink Current Suppression
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.
- Note:
- Reverse current cannot be controlled and stabilized. Connect a dummy resistor or reverse current prevention diode when the load of the reverse voltage is equal to or higher than the rated voltage (inductive loads, regenerative motors, etc.)
Delay Trigger Function
Only one R4K-80 is available when -LUs1, -LGob, or -LEt option is selected.
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
- R4K-36 series, RK-80 series, RK series, and REK series
For details, contact our sales office. They can be connected to up to 16 units. - Can be connected to up to 16 units.
- Only for slave-local
In the case of the slave remote control, exact same model of power supply needs to be used. Also, in the case of slave-local, each output voltage and current can be set individually. In the case of slave-remote, output voltage, and current can be set with a one-control function in which each slave unit follows the master unit setting.
* +1 and +8 can be set respectively in 0.0 s to 99.9 s.
Two-level Lock Function
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. )
Full LOCK
Locks all the switch operations except canceling the lock function.
It is especially suited to prevent misoperations in the remote control.
Standard LOCK
Locks the voltage/current setting switches.
It can prevent mistakenly changing the output setting in local control and immediately applying an emergency stop.
Remote Function
External output ON/OFF
Sink current 1 mA
* +S is common. So external control voltage shall be input with +S as reference. Otherwise, it can cause failure.
Remote sensing
The function ensures the prevention of stability deterioration which could be caused by the voltage drop (V0-VL) due to the resistance (R) of the output wire or contact resistance.
Digital Interface
Enable digit control via LAN/USB/RS-232C/RS-485/GPIB as well as one control with Master/Slave. When noisy environment is presumed, the following -LGob option (optical interface) is required.
Adapters (sold separately)
To use the digital interface, you need to prepare a digital interface adapter separately.
The following interface adapters are available according to the communication method of your controller port.
Adapter for LAN: CO-E32m
Total 16 units can be connected to one CO-E32m.
LAN cable is not provided.
Adapter for USB: CO-U32m
Total 16 units can be connected to one CO-U32m.
USB cable is not provided.
Adapter for RS-232C (9-pin): CO-MET2-9
Adapter for RS-232C (25-pin): CO-MET2-25
Adapter for RS-485 (25-pin): CO-MET4-25
[Dsub⇔Modular jack] Total 16 units can be connected.
Adapter for GPIB: CO-G32m
Total 16 units can be connected to one CO-G32m.
GPIB cable is not provided.
(A) CO-M cable
A two-meter cable is provided in each unit without an interface option.
If you need a longer cable, please consult with our sales staff.
Various Digital Control Functions
| Control function |
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|---|---|
| Write function |
|
|
|
| Reading function |
|
|
|
|
* Minimum value of each model is the same as the minimum display of the front panel meter.
Dual Tracking, Multiple Outputs
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.
Dual Tracking
Multiple Outputs
Example of Connection and Operation
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.
Series operation
The total output voltage is up to 250 V. The output voltage exceeding 250 V is unavailable in a series connection. The output current will be the smallest value.
Parallel operation
Use the same value for voltage setting in parallel connection. The output current is the sum of each current. In order to prevent damage, set the OVP level of all the power supplies to the maximum.
Split operation
+output and -output are available.
Two Features in -LDe Option
(1) Function for Pulse/Ramp and Master Follow
A. Pulse
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 to evaluation tests for products as various operations, like as 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
B. Ramp
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 rise (reduce) voltage or current slowly.
* As for ramp operation, you can select “Doth of set voltage and current”, “Voltage setting only”, or “current setting only”.
t1 and t2 can be set to 0 to 999 s, respectively
C. Pulse + Ramp
It is also possible to use pulse combined with ramp action. If the multi-set function is combined with the too, 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 various aspects as it is possible to rise (reduce) 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.
D. Master Follow
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.
(2) Sweep Control Programming
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
Specifications
Options
- -LDe
Pulse and Ramp Sequence
- For details ”Functions".
- -LEt *1 *2 *4
LAN Interface Board
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Enable digital control via LAN.
HUB shall be required between R4K-80 and computer when controlling multiple R4K-80.
- -LGob *1 *2
Optical Interface Board
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With optical communication, isolation control is performed. As complete isolation is performed by means of optical fiber, this enables advanced prevention of erroneous operations involved with transient phenomena caused by surges, inductive lightning, external noise, etc.
- -LGob: Optical interface board + optical cable 2 meters
- -LGob(Fc5): Optical interface board + optical cable 5 meters
- -LGob(Fc10): Optical interface board + optical cable 10 meters
- -LGob(Fc20): Optical interface board + optical cable 20 meters
- -LGob(Fc40): Optical interface board + optical cable 40 meters
Select the optional optical interface board (-LGob) when using this DC power supply under the following conditions.
- Noisy environment including factories (Example: Motors or coils are used near power supplies and loads).
- Using with high voltage floating (more than 250 V)
- Installation distance of 2 meters or more between the DC power supply and a controller such as a computer, laptop, or Programmable Logic Controller (PLC).
Adapters (sold separately)
To use the optical interface, you need to prepare an optical interface adapter separately.
The following interface adapters are available according to the communication method of your controller port.Adapter for LAN: CO-E32
Total of 32 units can be connected to one CO-E32.
LAN cable is not provided.
Adapter for USB: USB-OPT
Total of 32 units can be connected to one USB-OPT.
USB cable is not provided.
Adapter for RS-232C (9 pin): CO-OPT2-9
Adapter for RS-232C (25 pin): CO-OPT2-25
Adapter for RS-485 (25 pin): CO-OPT4-25
[Dsub⇔Modular jack] Total 32 units can be connected.
Adapter for GPIB: CO-G32
Total of 32 units can be connected to one CO-G32.
GPIB cable is not provided.
(B) Optical fiber cable
- -LH
High isolation voltage
- With isolation voltage by ±1kV, more R4K-80 series power supplies are available in series connection.
- -LIc *3
Output current accumulation function
- This option accumulates the output current and displays the value (up to 100 Ah). The accumulated value is stored even when the output is off. You can set the maximum accumulated output current in advance to stop the output. It is very suitable for applications such as controlling Electroplating solutions.
- -LUs1 *1 *2 *4
USB Interface Board
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Enable digital control via USB.
When controlling several R4K-80 power supplies via USB, a USB HUB will be required between the computer and R4K-80 power supplies.
- -L(Mc0.5), -L(Mc0.15) *1
Changing of communications cable
- 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 this option is selected, the standard digital interface is not included. For more information on the digital interface, refer to CO/USB series datasheet.
- Please consider the location of usage. A high-humidity environment can be the cause of failure and corrosion.
- Master/slave function is unavailable.
How to Order
When ordering, add Option No. to Model No. in alphabetical order followed by the input voltage.
Example:R4K-80-LDeGobHIc, R4K-80L-LDeHIcUs1
Accessory
AC Input Cable
| Standard | CABLE TYPE1 |  |
 |
125 V / 10 A | 2.5 meters Fixed length |
|---|---|---|---|---|---|
| Sold separately | CABLE TYPE3 | |
 |
250 V / 10 A | 2.5 meters Fixed length |
| Sold separately | CABLE TYPE4 | |
 |
250 V / 10 A | 2.5 meters Fixed length |
| Sold separately | CABLE TYPE13 | |
 |
250 V / 15 A | 2.5 meters |
Accessory Kit
Various accessories are available for convenient use of the unit.
Stand
The stand is useful to use as a single unit.
Binder
For the applications which require two to six units combination. Dual, triple, and quad-multiple operations are possible.
* Cooling fan is needed for more than three units combination.
Rack mount shelf (RMO series)
- 10 Units/1 rack shelf, and can be placed in a cabinet. Easy to take one unit out.
- Best suitable for a system operation
- With fan unit (100 Vac) * Contact our sales representatives.
- The rack mount shelf enables consolidation to one.
* Power supply is not included in the accessories.
Dimensions
Download
-
R4K-80 series Datasheet
Date: 2022-09-13 rev.14
PDF (6,259KB)
-
How to Use DC Power Supplies
Date: 2023-08-30 Rev. 07
PDF (1,467 KB)
-
R4K-80 series Instruction Manual
PDF(2,590KB)
-
R4K-80 series Basic Instruction Manual
Date: 2020-11-11 rev.3.2
PDF (257 KB)
-
R4K-80 series Instruction Manual (-LEt option)
Date: 2021-03-08 rev. 0.1
PDF (1,629 KB)
-
R4K-80 series USB Driver
Date: 2023-08-23 rev1.7.5
ZIP (6,617 KB)
The account registration is necessary for downloading
-
R4K-80 series Datasheet
Date: 2022-09-13 rev.14
PDF (6,259KB)
-
How to Use DC Power Supplies
Date: 2023-08-30 Rev. 07
PDF (1,467 KB)
-
R4K-80 series Instruction Manual
PDF(2,590KB)
-
R4K-80 series Basic Instruction Manual
Date: 2020-11-11 rev.3.2
PDF (257 KB)
-
R4K-80 series Instruction Manual (-LEt option)
Date: 2021-03-08 rev. 0.1
PDF (1,629 KB)
-
R4K-80 series USB Driver
Date: 2023-08-23 rev1.7.5
ZIP (6,617 KB)
In this website, we provide only the latest version of information including instruction manuals as of our products. Therefore, the newest versions of manuals on the website might be not same as the ones of products you purchased in the past.
