PLR 20-18 Low Noise D.C. Power Supply

Key Features

Output range 0~20V/ 0~18A/ , 360W
Low-noise design for minimal interference
Programmable settings for voltage, current, and power
Digital display for real-time monitoring
Overload protection and safety features
Ideal for precision testing and laboratory applications

The PLR 20-18 Low Noise D.C. Power Supply is a high-performance, programmable power supply designed for precision testing and laboratory applications. Offering an output range of 0~20V with a current capacity of 0~18A and a maximum power output of 360W, this power supply delivers stable and accurate voltage and current regulation, making it ideal for powering sensitive electronic components or circuits. With its advanced low-noise design, the PLR 20-18 ensures minimal electrical interference, providing a clean power source for precision work in research, development, and manufacturing. The unit features comprehensive programmable settings, allowing users to define and control voltage, current, and output parameters for automated testing. Equipped with a digital display for real-time monitoring, overload protection, and various safety features, this power supply is both reliable and versatile for a wide range of applications, including testing, diagnostics, and production line operations.

PLR-Series Specifications

The specifications apply when the PLR-Series is powered on for at least 30 minutes under +20°C~+30°C

Model	PLR20-18	PLR20-36	PLR36-10	PLR36-20	PLR60-6
OUTPUT RATING
Voltage	0V to 20V		0V to 36V		0V to 60V
Current	0 ~ 18A	0 ~ 36A	0 ~ 10A	0 ~ 20A	0 ~ 6A
Power	360W	720W	360W	720W	360W
REGULATION (CV)
Load	0.005%FS+2mV		0.005%FS+2mV		0.005%FS+2mV
Line	0.005%FS+1mV		0.005%FS+1mV		0.005%FS+1mV
REGULATION (CC)
Load	5mA		5mA		5mA
Line	5mA	10mA	1mA	5mA	1mA
RIPPLE & NOISE (Noise Bandwidth= 20MHz ; Ripple Bandwidth = 1MHz)
CV p-p	30mVp-p		30mVp-p		30mVp-p
CV rms	0.5mVrms		0.5mVrms		0.5mVrms
CC rms	10mArms		5mArms	10mArms	5mArms	5m Arms
SETTING ACCURACY (23°C±5°C, after 30-minute aging)
Voltage	± (0.5%SET+0.5%F.S):		± (0.5%SET+0.5%F.S):		± (0.5%SET+0.5%F.S):
Current	± (1%SET+1%F.S):		± (1%SET+1%F.S):		± (1%SET+1%F.S):
Power	±(0.7%rdg+1.5%F.S):		±(0.7%rdg+1.5%F.S):		±(0.7%rdg+1.5%F.S):
READBACK ACCURACY (23°C±5°C, after 30-minute aging)
Voltage	±(0.1%rdg+2digit):		±(0.1%rdg+2digit):		±(0.1%rdg+2digit):
Current	±(0.5%rdg+2digit):		±(0.5%rdg+2digit):		±(0.5%rdg+2digit):
RESPONSE TIME
Raise Time	50ms/50ms: No load/Rated load Output voltage: 10%→90%FS		50ms/50ms: No load/Rated load Output voltage: 10%→90%FS		50ms/50ms: No load/Rated load Output voltage: 10%→90%FS
Fall Time(Full load)	50ms ; Output voltage: 90%→10%FS		50ms ; Output voltage: 90%→10%FS		150ms ; Output voltage: 90%→10%FS
Fall Time(No load)	250ms ; Output voltage: 90%→10%FS		250ms ; Output voltage: 90%→10%FS		600ms ; Output voltage: 90%→10%FS
Load Transient Recover Time (Load change from 50 to 100%)	100μs		100μs		100μs
SETTING RESOLUTION
Voltage	10mV		10mV		10mV
Current	10mA		10mA		10mA
MEASUREMENT RESOLUTION
Voltage	10mV		10mV		10mV
Current	10mA		10mA		10mA
SERIES AND PARALLEL CAPABILITY
Parallel Operation	Up to 3 units		Up to 3 units		Up to 3 units
Series Operation	Up to 2 units		Up to 2 units		Up to 2 units
PPROTECTION FUNCTION
OVP	Set range: 10% to 110% FS. Set resolution: 10 times the minimum display resolution. Activated when the output voltage exceeds the set OVP value: Hardware detection.
OCP	Set range: 5% to 110% FS. Set resolution: 10 times of minimum display resolution. Activated when the output current exceeds set OCP value: Software detection.
UVP	Set range: -1V to 110% FS. Set resolution: 10 times the minimum display resolution. Activated when the output voltage falls below the set UVP value: Software detection.
ENVIRONMENT CONDITION

Operation Temp	0℃ to 40℃
Storage Temp	﹣20℃ to 60℃
Operating Humidity	30% to 85% RH (No dew condensation)
Storage Humidity	20% to 85% RH (no dew condensation)
READ BACK TEMP WEFFICIENT
Voltage	±100ppm/℃		±100ppm/℃		±100ppm/℃
Current	±100ppm/℃		±100ppm/℃		±100ppm/℃
OTHER
Power consumption	570VA	1100VA	520VA	1050VA	510VA
Power factor	0.99		0.99		0.99
Coolingmethod	Forced cooling: Fan speed proportionate to the temperature of the internal heat sink.
Power Source	Single-phase 100VAC to 240VAC, 50Hz to 60Hz
Interface	RS-232C/LAN (Standard: ) ; GPIB/USB (option)
Analog Control	Yes
Dimension	139.5 (H) * 140(W) *415.5(D)	139.5 (H) * 210(W) *415.5(D)	139.5 (H) * 140(W) *415.5(D)	139.5 (H) * 210(W) *415.5(D)	139.5 (H) * 140(W) *415.5(D)	139.5 (H) * 210(W) *415.5(D)
Weight	5.2kg	7.5kg	5.2kg	7.5kg	5.2kg

Standard Accessories

User Manual (CD) x 1, AC Power Cord x 1, Rear Output Terminal Cover x 1,
Bolt set x1 [Hexagon head bolt (P-3) x2, Flat washer x2, Hexagon nut x2]
Output-grounding cable x 1,

Optional Accessories

PLR-GU        GPIB/ USB Interface Card
PLR-LU         LAN / USB Interface Card
PLR-ARC      External Analog Control Interface Card
PLR-001        Parallel connection signal cable (2 to 3 units)
PLR-002       Series Connection Signal Cable
GRA-427       RackMountAdaptor(EIA+JIS)
GTL-246        USB Cable (1.2m)
GTL-248        GPIB Cable(2.0m)
GTL-251        GPIB-USB-HS (High-Speed)
GRJ-1102      Modular Cable (1.5m)

PLR 20-18 Low Noise D.C. Power Supply