Manson NRP-2050 User manual

NRP -2050/3630/6016 SWITCHING MODE POWER SUPPLY

USER MANUAL

Keep this manual in a safe place for quick reference at all times.

This manual contains important safety and operation instructions for correct use of the power supply.

Read through the manual and pay special attention to the markings and labels of this unit and equipment

to be connected.

Pay special attention to these two types of notices used in this manual

WARNING :

Failure to observe this warning may cause injury to persons and damage to power supply

or connected equipment.

CAUTION :

Failure to observe this warning may result in damage to equipment

and Improper functioning of the power supply.

WARNING :

1. Do not use this power supply near water.

2. Do not operate or touch this power supply with wet hands.

3. Do not open the casing of the power supply when it is connected to ac mains.

4. Refer all servicing to qualified service personnel only.

5. Before replacing the AC fuse at AC socket , find out and clear up the cause first.

6. Replace the AC fuse with the same type and rating as the original fuse.

7. The max. output voltage of Model NRP-6016 is 60VDC, avoid touch the metal contact part of the
output terminals.

CAUTION :

1. Use a grounded 3 pin AC source .

2. This unit is for indoor use only .

3. Do not operate or place this unit in a humid, dusty, in direct sunlight location or near any heat source.

4. Before plugging into local AC mains, check with the rating label at the back of the unit.

5. Do not block any ventilation openings of the unit.

6. This unit must be used within the specified rating, regular excessive continuous loading may cause
damage to the power supply.

2

7. The gauge size of input power cable must be at least 0.75mm

and the total length of power cable must

not exceed 3m.

OPERATION ENVIRONMENTAL CONDITION

• 10-80% R.H.

• Maximum relative humidity 80% for temperature up to 31°C decreasing linearly to 50% relative humidity at 40°C.

• Altitude up to 2000m

• Installation category : CAT 2

• Pollution degree: 2

• Mains supply voltage fluctuation up to ±10% of the normal voltage

INTRODUCTIONS

This 100W switching mode power supply with constant current, tracking OVP, floating ground design,
small footprint, output on/off push button and collapsible handle make it ideal for laboratory, work shop
applications in tight work bench.

CONTROLS AND INDICATORS

c Power Switch :

Turns the power supply on–off, when it is on the front display lights up.

d AC Input Socket with Fuse
e Concealed Fuse box ( ply open the cover to get to the fuse)
f Output Voltage Tuning knob
g Output Current Tuning knob.
h Output On/Off push button
i Output Terminal Positive (+) Red color.
j GND Terminal () Green color

Chassis ground terminal, normally this is to be short to (+) or (-) as required by user.

k Output Terminal Negative (-) Black color.
l LCD Display panel showing :

3 digit voltage, current meter, (CV) constant voltage mode, (CC) constant current mode,

Output Terminal on/off state

OPERATIONS

Ground Connection

Depending on the application, the power supply output terminals can be grounded in any one of the following grounding
conditions :

Negative ground – black (-) negative terminal is shorted with green GND terminal.
Positive ground – red (+) positive terminal is shorted with green GND terminal.
Floating ground – green terminal is not shorted with any of the output terminals.

Remarks :

When operating this power supply as a floating ground, high impedance leakage can exist between the power supply circuitry
and the chassis ground.

Basic Mode of Operation

This power supply is designed to operate as a constant voltage source or as a constant current source. Automatic crossover to
either mode of operation occurs when the load condition changes as following :