PSM3 series is a multi-channel Linear DC power supply with 3- output channels. Its high stability and enhanced linearity make this regulated DC power supply significantly useful where high performance and stable power sources are required. It is widely adopted for R&D, educational and industrial usage.


It provides full load stable performance, intelligent ventilation fan control to minimise operation noise, and fully adjusts voltage and current readings. When output overloads, the system will automatically cut off the output to protect the connected circuit or loading. At the same time, the overload indicator will illuminate to warn the operator for further action.


In auto-tracking mode, the PSM3 series can auto-connect CH1 and CH2 output either in parallel or in series internally to provide double current or voltage output.


On-screen 3 sets of the output display. Operator not required to switch display, direct monitor all channel’s voltage and current usage status simultaneously.


These excellent performances with extract stability and enhanced linearity make the unit very outstanding. These power supplies are suitable for laboratory, university, high school, and workplace uses or where high performance and precision regulated DC power supply is required.

Features:

- 3 Adjustable Channels Output

- DC 0 ~ 30V Linear Voltage Adjustment (Channel1 and 2)

- Channel 1 and 2 max DC 3A Linear Current Adjustment

- Channel 3 Output Voltage Selectable DC 5.0V/3.3V/2.5V for TTL/CMOS Circuit (Channel3)

- 6 Sets of LED for Voltage and Current Output Display

- Low Noise and Ripple; Less than 1mV (5Hz ~ 1MHz)

- Voltage and Current Pre-set Feature

- CV/CC Mode Automatic Change

- Overload Indication

- Intelligent Ventilation Fan Control

- Auto Tracking Output

- Auto Parallel or Series connection

- Doubling voltage (60V) with Parallel Connection

- Continuous Operation with Full Loading

- 110V/220V AC Power Input Switchable

- Rugged Metal Cabinet

SPECIFICATIONS

GERNERAL SPECIFICATION

Model

Number of Channels

CHANNEL OUTPUT

CH 1

CH 2

CH 3

Voltage

Current

Voltage

Current

Voltage

Current

PSM3-30/3

3

0 ~ 30V

2A

0 ~ 30V

2A

5/3.3/2.5V Switchable

3A

OPERATION CONDITION

Environmental Condition

Operating altitude <2000m, pollution degree II

Input Voltage

110V / 220V AC ±10% at 50/60Hz

Operating Condition

Temperature -10 ~ 40oC Relative Humidity ≤80%RH (non condensing)

Storage Condition

Temperature -20 ~ +80oC Relative Humidity ≤80%RH (non-condensing)

TECHNICAL SPECIFICATION

Channel 1 and Channel 2 (CH1 & CH2)

Constant Voltage Mode (CV)

Voltage Range

0.6 to 30V

Line Effect

CV ≤ 0.01% +3mV (±10% of Rated Voltage)

Loading Effect

CV ≤ 0.01% +3mV (Output current ≤ 3A)

Noise and Ripple

CV ≤ 1mVrms(Output current ≤ 3A, 5Hz~1MHz)

Recovery Time

≤ 100μsec (50% of loading effect with min. loading of 0.5A, Setting Band 15mV)

Constant Current Mode (CC)

Current Range

30mA to 3A

Line Effect

CC ≤ 0.2% +3mA

Loading Effect

CC ≤ 0.2% +3mA (Output current ≤ 3A)

Noise and Ripple

CC ≤ 3mArms (Output current ≤ 3A)

Tracking Characteristics (in Series)

Line Effect

CV ≤ 0.01% +3mV

Loading Effect

CV ≤ 0.01% +3mV (Output current ≤ 3A)
CV ≤ 0.02% +3mV (Output current ≤ 3A)

Tracking Transient

≤ Master * 2% +50mA (Loading change ≤ 300mA)

Tracking Characteristic (in Parallel)

Line Effect

CV ≤ 0.01% +5mV

Loading Effect

CV ≤ 300mV

Tracking Transient

≤ Master * 0.5% +10mV (Loading change  300mV)

Channel 3 (CH3)

Voltage Range

2.5V/3.3V/5V

Current Range

3A

Line Effect

≤ 25mV

Loading Effect

≤ 25mV

Noise and Ripple

≤ 2mVrms(5Hz~1MHz)

Display

Resolution (CH1 & CH2)

10mV/1mA

Resolution (CH3)

1mV/1mA

Accuracy

±(1% of reading + 2digits)

Standard Environment: 23oC ±5oC ; RH≤ 75% (non-condensing)

MECHNICAL SPECIFICATION

Dimension

330(D) x 250(W) x 155(H) mm

Weight

Approx. 9kg

Due to our policy of continual product development, we reserve the right to amend the specifications of all mentioned products without notice.

Doc Download

PSM3-30/3 Specification