
Linear Power
Extended Warranty
Program
SM
Supply
PSU505
$
2100
⻬ 0 to 30 Vdc 
⻬ Standard RS232, 
USB Interface
⻬ Liquid Crystal Display 
⻬ Programmable Triple 
Outputs (Auto-Ranging 
Function on Channel 3)
⻬ Low Ripple, Low Noise 
⻬ Number and 
Function Keys
⻬ 100 Store and Recall 
Settings 
⻬ Timer (1 second to 
100 hours)
⻬ Precise Voltage and 
Current Measurement
⻬ Dual Tracking Mode 
⻬ Average Measurement 
Time: 50 ms
The PSU505 is a DC power supply 
with 3 programmable outputs and 
12-bit resolution. The total output 
power is 210 W: channels 1 and 
2, 30V/3 A, provide 90 W each; 
channel 3, 10V/ 5 A, puts out 
30 W at a constant rate. Channel 
1 provides outputs in serial and 
parallel modes; channel 2, in serial 
mode only. On channel 3, the 
PSU505, $2100, 
shown smaller 
than actual size.
an alphanumeric keypad. With the 
timer function, the user can control
user can perform auto-ranging, 
a feature not found on traditional 
power supplies. 
The user can monitor OVP 
(overvoltage protection) and OCP 
(overcurrent protection) on the 
front-panel LCD. Because of its
0.01% load-and-line regulation 
and 50 ms max response time, 
the PSU505 remains stable even 
when the voltage source and loads 
change. The PSU505 is also 
highly efficient, with an average 
measurement time of 50 ms.
The PSU505 is easy to use, 
featuring an adjustable tracking 
function, a rotary selection dial, and
when each output is switched off 
(1 second to 100 hours); this feature 
is particularly useful in burn-in-room 
and electroplating applications. 
Up to 100 configurations can be 
stored in memory. A key-lock 
function prevents users from 
changing the original settings.
OMEGACARESMextended 
warranty program is 
available for models shown 
on this page. Ask your sales 
respresentative for full 
details when placing an 
order. OMEGACARE 
covers parts, labor and 
equivalent loaners.
SM
AVAILABLE FOR FAST DELIVERY!
To Order (Specify Model Number)
Model No. Price Description 
PSU505 $2100 Linear power supply
Comes complete with 1.5 m (5') power cord, fuse and operator’s manual. 
Ordering Examples: PSU505, linear power supply, $2100. OCW-3, OMEGACARESMextends
standard 1-year warranty to a total of 4 years ($350), $2100 + 350 = $2450.
Q-9

PSU505, $2100, 
shown smaller 
than actual size.
Specifications 
Channel Number CH1 and CH2 CH3 
Output Voltage 0 to 30 V 0 to 15 V 
Output Current 0 to 3 A 0 to 5 A 
Output Power 90 W 30 W
(CH3 Auto-Ranging) 
Line Regulation ±(% of Output + Offset) 
Voltage 0.01% + 2 mV 
Current 0.01% + 300 µA 
Load Regulation ±(% of Output + Offset)  
Voltage ≤3 mV ≤5 mV 
Current 0.01% + 300 µA 
Ripple and Noise (20 Hz to 20 MHz)  
Normal Mode Voltage 300 µVrms/3 mVpp 1 mVrms/20 mVpp  
Normal Mode Current <1 mA <5 mA  
Resolution 
Programming 10 mV/1 mA 10 mV/2 mA  
Readback 10 mV/1 mA 3 mV/2 mA  
Programming Accuracy ±(% Output + Offset) 
Voltage 0.05% + 20 mV 0.05% + 6 mV  
Current  0.05% + 3 mA 0.05% + 4 mA  
Readback Accuracy ±(% Output + Offset) 
Voltage 0.05% + 20 mV 0.05% + 6 mV  
Current 0.05% + 3 mA 0.05% + 4 mA  
Temperature Coefficient per ±(% Output + Offset) 
Voltage <0.1% + 3 mV  
Current <0.2% + 2 mA  
Tracking Accuracy ±(% of Output + Offset) 
Voltage <0.1% + 40 mV  
Transient Response Time <50 µs  
Stability, Constant Output and Temperature ±(% of Output + Offset), 8 hrs  
Voltage <0.2% + 2 mV  
Current <0.1% + 1 mA  
Voltage Programming Speed 
Rising Time at Full Load 1 ms  
Rising Time at No Load 1 ms  
Falling Time at Full Load 2.5 ms  
Falling Time at No Load 250 ms  
General 
AC Line Input Voltage Ranges 
Temperature Ranges Operating: 0 to 40°C (32 to 104°F); Storage: -10 to 70°C (14 to 158ºF)   
Common-Mode Voltage ±240 Vdc  
Dimensions (W x H x D)  216 x 135 x 432 mm (8.5 x 5.3 x 17")  
Weight  6.5 kg (14 lb)  
Communications RS232/USB interface 
115/220 Vac ±10% (47 to 63 Hz)
Q
Q-10

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