QJE PS30SWIV User Manual

CAUTION
1. Even though the chassis of the unit is negatively
grounded，use correct terminals to connect cable.
2. When plugging the unit into a wall outlet，it must be
turned off.
3. Place the unit in a dry and well ventilated area.
4. Never touch the unit while it is working. Even though
it is designed for high efficiency，the unit will still
get hot.
5. A current limiting system will protect the unit from
overloading.
6. If a short circuit occurs while outputing，the unit
will be protected by a short circuit protection function.
Turn off the unit and repair the cause of the short
circuit immediately，then turn it back on.
7. Do not use the unit for devices that require high current
input at the start，such as motorized equipment. Do not
use the unit to charge a car battery.
8. Do not use a car cigarette lighter in the cigarette plug
socket on the unit.
9. Before replacing a fuse make sure that the unit has been
turned off. Be sure to use the specified type of fuse.
10.Make sure the product is always suitably grounded to
prevent electric shock and to reduce noise.
11.Never disassemble，modify, and touch the inside of the
unit unnecessarily. That could cause damage to the product
and make the warranty invalid.
3
SWITCHING MODE
DC REGULATED POWER SUPPLY
PS30SWIV
INSTRUCTION MANUAL

QJE PS30SWIV Specifications

General

Model	QJE PS30SWIV
Category	Power Supply
Operating Temperature	0°C to 40°C
Output Voltage	30V DC
Type	Linear
Protection	Short Circuit Protection
Connector Type	Banana
Storage Temperature	-20°C

Summary

General Safety Precautions

Operational Safety Guidelines

Covers essential safety measures including grounding, power connection, ventilation, handling hot units, short circuit protection, and proper usage.

Product Introduction

Performance and Features

Highlights high efficiency, compact design, noise minimization for communication, and convenient functions like pre-set knobs and meters.

Part Names and Functions

Front Panel Controls

Identifies and explains the functions of the power switch, noise offset control, voltage adjustment knob, and output control switch.

Output and Metering

Details the output terminals, digital meter display, and current indication for monitoring voltage and current.

Technical Specifications

Electrical Parameters

Lists input voltage, output voltage range, voltage regulation, and output current capabilities.

Protection and Components

Specifies protection features like short-circuit and current limiting, ripple, fuse rating, meter type, dimensions, and weight.