Tenma Tenma 72-10495 User manual

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Part Number: 72-10495, 72-10500 and 72-10505

Digital-Control and Programmable

Twin DC Power Supply

User Manual

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Important Safety Information

Please read these instructions carefully before use and retain for future reference.

The following safety symbols may appear in this manual or on the series:

Symbol Meaning

Warning

Danger - High Voltage

Earth (Ground) Terminal

Do not block or obstruct the opening to the cooling fan vent.

Avoid severe impacts or rough handling as it could lead to damage.

Do not discharge static electricity.

Do not disassemble unless you are qualied as service personnel.

AC Input

AC input voltage: 110V / 120V / 220V / 230V, 50/60Hz.

Connect the protective grounding conductor of the AC power cord to an earth ground, in order to avoid electrical shock.

Operation Environment

Location Indoor, no direct sunlight, dust free, almost non-conductive pollution

Relative Humidity <80%

Altitude <2000m

Temperature 0°C to +40°C

Storage Environment

Location Indoor

Relative Humidity <70%

Temperature -10°C to +70°C

Fuse

Model 110V / 120V 220V /230V

72-10495 T10A/250V (20×5mm) T5A/250V (20×5mm)

72-10500 T8A/250V (20×5mm) T4A/250V (20×5mm)

72-10505 T8A/250V (20×5mm) T4A/250V (20×5mm)

• Avoid the risk of re by only replacing the fuse with the specied type and rating.

• Disconnect the power before replacing the fuse.

• Make sure the cause of the fuse blowout is xed before replacing the fuse.

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Series Lineup / Main Features

Part Number V Meter A Meter USB Resolution

72-10495 4 digit 4 digit No 10mV/1mA

72-10500 4 digit 4 digit No 10mV/1mA

72-10505 4 digit 4 digit No 10mV/1mA

Performance

• Low noise: cooling fans controlled by heatsink temperature.

Operation

• Constant voltage/constant current operation.

• Output on/o󰀨 control.

• Digital panel control.

• Twin 5 sets of panel setup save/recall.

• Coarse and ne voltage/current control.

• Software calibration.

• Beep output.

• Key lock function.

Protection

• Overload protection .

• Reverse polarity protection.

• Short circuit protection.

Front Panel Overview

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Front Panel Overview

Storage Indication

Brief Introduction of Panel Operation

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Operation

Connect the AC power cord and select the corresponding AC voltage according to the back label, then

connect the AC power cord to the socket on the back panel.

Press the power switch to tum the power on. The display initialises, showing the model of the machine and

then the setting level, which is recalled from the last use.

Press the power switch again to turn the power o󰀨.

Output ON/OFF

Panel Operation

• The key LED will turn on once you have pressed the “output” key to turn output on.

• The key LED will then turn o󰀨 once you have pressed the “output” key again to turn o󰀨 output.

Note: If there are any of the following conditions, the output will automatically turn o󰀨:

• OVP means there is abnormal high voltage output or input on the output terminal.

• When OCP is on, the output current reaches the setting current value.

• Recalling other setups from the memory.

Display

Condition Indication

• OVP is the indicator of overvoltage protection.

• When the overvoltage function is turned on the “ ” indicator lights up.

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• When the output voltage is higher than the protection setup value, due to unexpected conditions, the output cuts o󰀨 and

the OVP indicator ickers.

• Press the OVP key again and the power supply will recover.

OCP is OCP indicator. When overcurrent function is turned on, the OCP indicator light turns on.

C.C is the constant current indicator. When the power supply is in the mode of constant current,

the light will be on.

C.V is the constant voltage indicator. When the power supply is in the mode of constant voltage,

the light will be on.

OUT is output indicator. If the light is on then there is a voltage output in the output terminal.

Beep ON/OFF

By default, the beep sound is enabled.

To tum o󰀨 the beep, press the OCP (BEEP) key for two seconds.

A beep sounds, meaning the beep setting will be turned o󰀨.

To enable the beep, press the OCP (BEEP) key for two seconds again.

Front Panel Lock

Press the LOCK key to lock the front panel key operation. The key LED will tum on.

To unlock, press and hold the LOCK key for two seconds.

Output Setup

Panel Operation

• Connect the load to the front port, CH1 +/-.

• Press the Voltage/Current key to switch between the voltage adjustment and current adjustment. Adjust the voltage and

current with the Voltage/Current adjustment knob.

• By default, the voltage and current knob work in coarse mode. In order to activate in ne mode, press the key to choose

between coarse or ne mode.

• Turning on the output and pressing the output key will turn on the key LED and display CV or CC mode.

Save Setup

Background The front panel settings can be stored into one of the four internal memories.

Contents

The following list shows the setup contents:

• Fine/coarse knob editing mode

• Beep on/o󰀨

• Output voltage/current level

The following settings are always saved as “o󰀨”:

• Output on/o󰀨

• Front panel lock on/o󰀨

Panel Operation Press one of the four buttons (M 1, M2, M3, M4) and the LED light turns on accordingly. After

adjusting the value, it is automatically saved, once the LED light stops blinking.

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Recall Setup

The front panel settings can be recalled from one of the four internal memories.

Press any button of M1 to M4.

For example, the memory of the panel setting is recalled in M1.

After you recall M4, rotate the shuttle knob and then M5 is recalled.

If the memory indicator is lit on the panel of lights, then the current memory is recalled.

Note: When a setting is recalled the output automatically turns o󰀨.

Specications

Note: The specications in the table below have all been tested in temperatures ranging from 25°C down to -5°C, and after

being warmed up for 20 minutes.

Part Number 72-10495 72-10500 72-10505

Voltage Range 0-30V 0-30V 0-30V

Current Range 0-5A 0-3A 0-3A

Load Regulation

Voltage

Current

≤0.1%+5mV

≤0.1%+10mA

≤0.01%+3mV

≤0.1%+5mA

≤0.01%+3mV

≤0.1 %+5mA

Line Regulation

Voltage

Current

≤0.01%+3mV

≤0.1%+3mA

≤0.01%+3mV

≤0.1%+3mA

≤0.01%+3mV

≤0.1%+3mA

Setup Resolution

Voltage

Current

10mV

1mA

10mV

1mA

10mV

1mA

Setup Accuracy (25°C to -5°C)

Voltage

Current

≤0.5%+20mV

≤0.5%+10mA

≤0.5%+20mV

≤0.5%+5mA

≤0.5%+30mV

≤0.5%+5mA

Ripple (20-20m)

Voltage

Current

≤2mVrms

≤3mArms

≤1mVrms

≤3mArms

≤1mVrms

≤3mVrms

Temperature Coe󰀩cient

Voltage

Current

≤150ppm

Read Back Accuracy

Voltage

Current

10mV

1mA

10mV

1mA

10mV

1mA

Read Back Temperature Coe󰀩cient

Voltage

Current

≤150ppm

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Important Notice : This data sheet and its contents (the “Information”) belong to the members of the AVNET group of companies (the “Group”) or are licensed to it. No licence is granted for

the use of it other than for information purposes in connection with the products to which it relates. No licence of any intellectual property rights is granted. The Information is subject to change

without notice and replaces all data sheets previously supplied. The Information supplied is believed to be accurate but the Group assumes no responsibility for its accuracy or completeness,

any error in or omission from it or for any use made of it. Users of this data sheet should check for themselves the Information and the suitability of the products for their purpose and not make

any assumptions based on information included or omitted. Liability for loss or damage resulting from any reliance on the Information or use of it (including liability resulting from negligence or

where the Group was aware of the possibility of such loss or damage arising) is excluded. This will not operate to limit or restrict the Group’s liability for death or personal injury resulting from its

negligence. TENMA is the registered trademark of Premier Farnell Limited 2019.

Part Number 72-10495 72-10500 72-10505

Reaction Time

Voltage Rise

Voltage Drop

≤100mS

(10% rated load)

≤100mS

(10% rated load)

≤100mS

(10% rated load)

Interface: Interfaces (for programmable models only): RS232, USB