ISO-TECH IPS 3303D (01) PDF MANUAL

WARNING: Identifies conditions or practices that could result in injury or loss of life.

CAUTION: Identifies conditions or practices that could result in damage to the IPS X303 series or to other properties.

DANGER High Voltage: Indicates the presence of high voltage.

Attention Refer to the Manual: Signals that the user should consult the manual.

Protective Conductor Terminal: Indicates the terminal for the protective earth ground connection.

Earth (ground) Terminal: Indicates the earth ground terminal.

Do not place any heavy object on the IPS X303 series.

Avoid severe impacts or rough handling that leads to damaging the IPS X303 series.

Do not discharge static electricity to the IPS X303 series.

Do not block or obstruct the cooling fan vent opening.

Do not perform measurement at circuits directly connected to Mains.

Do not disassemble the IPS X303 series unless you are qualified as service personnel.

The IPS X303 series falls under measurement category I (measurements performed on circuits not directly connected to Mains).

AC Input voltage: 100V/120V/220V/230V ±10%, 50/60Hz.

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

Fuse type: 100V/120V: T6.3A/250V, 220V/230V: T3.15A/250V.

Make sure the correct type of fuse is installed before power up.

To ensure fire protection, replace the fuse only with the specified type and rating.

Disconnect the power cord before fuse replacement.

Make sure the cause of fuse blowout is fixed before fuse replacement.

Disconnect the power cord before cleaning.

Use a soft cloth dampened in a solution of mild detergent and water. Do not spray any liquid directly onto the unit.

Do not use chemicals or cleaners containing harsh products such as benzene, toluene, xylene, and acetone.

Location: Indoor, no direct sunlight, dust-free, almost non-conductive pollution (Pollution Degree 2).

Relative Humidity: < 80%

Altitude: < 2,000m

Temperature: 0 to 40°C

Pollution Degree 2: Normally only non-conductive pollution occurs. Occasionally, however, temporary conductivity caused by condensation must be expected.

Location: Indoor

Relative Humidity: < 70%

Temperature: -10 to 70°C

NOTE: This lead/appliance must only be wired by competent persons.

WARNING: THIS APPLIANCE MUST BE EARTHED.

The wires are coloured as follows:

Green/Yellow: Earth – Connect to the terminal marked E, the earth symbol, or coloured Green or Green & Yellow.

Blue: Neutral – Connect to the terminal marked N or coloured Blue or Black.

Brown: Live (Phase) – Connect to the terminal marked L or P or coloured Brown or Red.

If in doubt, consult the instructions provided or contact the supplier.

The cable/appliance should be protected by a suitably rated and approved HBC mains fuse (e.g., 3A or 5A for 0.75mm² cable). Refer to equipment ratings.

Any removed/replaced moulded mains connector must be destroyed and disposed of safely.

Re-wiring must follow the information on the label.

Independent Mode: Output voltage and current of each channel (CH1/CH2) are controlled separately. Isolation is 300V.

Tracking Series Mode: CH1 and CH2 outputs are automatically connected in series internally. Output voltage is doubled; CH1 controls the combined voltage.

Tracking Parallel Mode: CH1 and CH2 outputs are automatically connected in parallel internally. Output current is doubled.

CV Mode: Operates when the load current is less than the set current limit. The output voltage is held constant at the set level, and the current varies with the load. The front panel C.V. indicator is green.

CC Mode: Operates when the load current reaches the set current limit. The output current is held constant at the set level, and the voltage drops below the set level to prevent overload. The front panel C.C. indicator is red.

Crossover: The supply switches from CV to CC when the current reaches the set limit, and from CC to CV when the current drops below the set limit.

Performance:

Low noise: Cooling fan controlled by Heat sink temperature

Compact size, light weight

Operation:

Constant Voltage / Constant Current operation

Tracking Series / Tracking parallel operation

Output On/Off control

Multi-output:

IPS 2303S: 30V/3A x2

IPS 3303S: 30V/3A x2, 2.5V/3.3V/5V/3A x 1

IPS 4303S: 30V/3A x2, 5V/1A x1, 5V/3A (10V/1A) x1

Digital panel control

4 sets of panel setup save/recall

Coarse and fine Voltage/Current control

Software calibration

Buzzer output

Key lock function

Protection:

Overload protection

Reverse polarity protection

Interface:

USB for remote control

Volt Meter: Displays output voltage of the selected channel(s).

IPS 4303S: CH1/CH3 and CH2/CH4

IPS 2303S/3303S: CH1 and CH2

IPS X303S models have 5 digits; IPS 3303D has 3 digits.

Amp Meter: Displays output current of the selected channel(s).

IPS 4303S: CH1/CH3 and CH2/CH4

IPS 2303S/3303S: CH1 and CH2

IPS X303S models have 4 digits; IPS 3303D has 3 digits.

Channel Indicator LEDs: Show which channel(s) are currently displayed and controlled (CH1, CH2, CH3, CH4).

CV/CC/PAR Indicators: Show the operating mode (Constant Voltage, Constant Current, Parallel Tracking) for CH1 and CH2.

CH3/CH4 Indicators: Show CV/CC status for CH3/CH4 (IPS 4303S) or Overload status for CH3 (IPS 3303S).

IPS 2303S/3303S: Use the CH1 and CH2 keys to select the respective channel for level adjustment.

IPS 4303S: Use the CH1/3 key to toggle between CH1 and CH3. Use the CH2/4 key to toggle between CH2 and CH4. The active channel is shown by the Channel Indicator LED.

Select the desired channel using the CH1/CH2 (or CH1/3, CH2/4) keys.

Use the VOLTAGE knob to adjust the output voltage level.

Use the CURRENT knob to adjust the output current limit.

Press the center of the VOLTAGE or CURRENT knob to switch between coarse (default) and fine adjustment. The FINE LED next to the knob indicates fine mode.

USB Connector: Accepts a USB slave connector for command-based remote control.

Cooling Fan: Provides internal cooling.

Power Cord / Fuse Socket: Accepts the AC mains power cord (100V/120V/220V/230V, 50/60Hz) and contains the AC main fuse holder.

AC Selector: Selects the AC input voltage range (100V/120V/220V/230V).

1. Select AC voltage: Before powering up, select the correct AC input voltage (100V, 120V, 220V, or 230V) using the AC Selector switch on the rear panel to match your local power source.

2. Connect AC power: Connect the AC power cord to the rear panel socket and plug it into a suitable AC outlet.

3. Power On: Press the front panel POWER switch to turn on the power. The display will show an initialization screen with the model name, followed by the last recalled settings.

1. Turn the terminal counter-clockwise to loosen the screw cap.

2. Insert the cable terminal (spade lug or similar).

3. Turn the terminal clockwise to tighten the screw cap and secure the cable.

Changing the operation mode (Independent / Tracking Series / Tracking Parallel).

Recalling other setups from memory.

Storing the current setup into memory.

Power on

Switching operation modes (INDEP – SER – PARA)

Setup save/recall

Switching voltage/current knob between fine/coarse

Output on/off

Panel lock/unlock

Switching CH1/CH2 output level knob (relevant model)

Voltage/current level reaching minimum (zero) level during adjustment

1. Ensure the PARA/INDEP and SER/INDEP key LEDs are off (Independent mode active).

2. Connect the load to the front panel terminals: CH1 +/- and CH2 +/- respectively.

3. Set CH1 output: Press the CH1 key (LED turns on). Use the Voltage and Current knobs (press knob for fine adjustment if needed) to set the desired CH1 voltage and current limit.

4. Set CH2 output: Press the CH2 key (LED turns on). Use the Voltage and Current knobs to set the desired CH2 voltage and current limit.

5. Turn on output: Press the OUTPUT key. The key LED turns on, and the CH1/CH2 indicators show the operating mode (CV or CC) for each channel.

CH3 does not have tracking modes and is independent of CH1/CH2 modes.

Output rating:

IPS 3303S: 2.5V/3.3V/5V (fixed), 3A

IPS 4303S: 0~5V, 0~3A / 5.001~10V, 0~1A (variable)

1. Connect the load to the front panel CH3 +/- terminals.

2. Set CH3 output:

IPS 3303S: Select the desired output voltage (2.5V, 3.3V, or 5V) using the CH3 voltage selector switch on the front panel.

IPS 4303S: Press the CH1/3 key until the CH3 indicator lights up. Use the Voltage and Current knobs to set the desired voltage and current limit.

3. Turn on output: Press the OUTPUT key. The key LED turns on.

Note on Indicators:

IPS 3303S: If the CH3 current exceeds ~3.2A, the OVERLOAD indicator turns red.

IPS 4303S: If the output operates in constant current mode, the C.C. indicator turns red.

Output rating: 5V/1A max (variable 0-5V, 0-1A).

CH4 does not have tracking modes and is independent of CH1/CH2 modes.

1. Connect the load to the front panel CH4 +/- terminals.

2. Set CH4 output: Press the CH2/4 key until the CH4 indicator lights up. Use the Voltage and Current knobs to set the desired voltage and current limit.

3. Turn on output: Press the OUTPUT key. The key LED turns on.

Note on Indicators: If the output operates in constant current mode, the C.C. indicator turns red.

Background: Combines CH1 (Master) and CH2 (Slave) in series internally, doubling the voltage capacity (0 to 60V). CH1 controls the total voltage. The total current limit is determined by the CH2 current setting.

Output rating: 0 to 60V / 0 to 3A.

Setup (without common terminal):

1. Activate Series Mode: Press the SER/INDEP key. The key LED turns on.

2. Connect Load: Connect the load across the CH1+ and CH2- terminals.

3. Set Max Current: Press the CH2 key (LED turns on). Use the Current knob to set the desired maximum output current limit (typically set to the maximum, 3.0A, unless a lower limit is needed).

4. Set Output Voltage: Press the CH1 key (LED turns on). Use the Voltage knob to set the desired total output voltage (0-60V). Use the Current knob to set the CH1 current limit (usually maximum, 3.0A).

5. Turn on Output: Press the OUTPUT key. The key LED turns on.

6. Monitor Output: Refer to the CH1 (Master) meter for the total output voltage reading. The CV/CC status is indicated by the CH1 indicator.

Setup (with common terminal / symmetrical supply):

1. Activate Series Mode: Press the SER/INDEP key. The key LED turns on.

2. Connect Load: Connect the GND terminal to the center point of the load. Connect the positive side of the load to CH1+ and the negative side of the load to CH2-.

3. Set Max Current: Press the CH2 key (LED turns on). Use the Current knob to set the desired maximum output current limit (typically 3.0A).

4. Set Output Voltage: Press the CH1 key (LED turns on). Use the Voltage knob to set the desired voltage for the positive rail (+V, which is half the total voltage range, 0-30V). The negative rail (-V) will track this automatically. Use the Current knob to set the CH1 current limit (usually 3.0A).

5. Turn on Output: Press the OUTPUT key. The key LED turns on.

6. Monitor Output: Refer to the CH1 (Master) meter for the positive output voltage reading (+V). The CH2 display shows the negative voltage (-V). CV/CC status is indicated by the CH1 indicator.

Background: Combines CH1 (Master) and CH2 (Slave) in parallel internally, doubling the current capacity (0 to 6A). CH1 controls the voltage.

Output rating: 0 to 30V / 0 to 6A.

1. Activate Parallel Mode: Press the PARA/INDEP key. The key LED turns on.

2. Connect Load: Connect the load across the CH1+ and CH1- terminals. (CH2 terminals are not used for load connection in this mode).

3. Set Output Voltage & Current: Press the CH1 key (LED turns on). Use the Voltage knob to set the desired output voltage (0-30V). Use the Current knob to set the desired total output current limit (0-6A).

4. Turn on Output: Press the OUTPUT key. The key LED turns on.

5. Monitor Output: Refer to the CH1 (Master) meter for the output voltage and total current readings. The CH1 CV indicator lights for Constant Voltage mode. The CH2 PAR indicator lights for Constant Current mode (parallel).

1. Press the RECALL/SAVE key (the MEMORY LED blinks).

2. Press the desired memory location key (1, 2, 3, or 4) where you want to save the settings.

3. The MEMORY LED stops blinking, indicating the settings are saved to that location.

Note: Saving a setup automatically turns the output off.

1. Press the memory location key (1, 2, 3, or 4) corresponding to the settings you want to recall.

2. The settings stored in that location are recalled and applied to the panel.

Note: Recalling a setup automatically turns the output off.

1. Install USB Driver: Before connecting, install the necessary USB driver on your computer. The driver creates a virtual COM port for communication.

2. Connect USB Cable: Connect a USB cable from the computer’s USB port to the power supply’s rear panel USB port.

3. Configure Software: Use terminal emulation software (like Tera Term, PuTTY) or custom software. Configure the software to use the virtual COM port assigned to the power supply with the following settings:

Baud rate: 9600 bps

Data bits: 8

Parity: None

Stop bits: 1

Flow control: None

4. Send Commands: You can now send SCPI commands to control and query the power supply.

Query: Commands ending with a question mark (?) ask the instrument for information (e.g., `VOLT1?`).

Set: Commands without a question mark set a parameter (e.g., `VOLT1 10.5`).

Terminator: Each command must end with a Line Feed character (ASCII 10, `\n`).

Separator: Use a space to separate the command from its parameter(s).

Error 101: Invalid character

Error 102: Syntax Error

Error 103: Invalid Separator

Error 104: Data type error

Error 105: GET not allowed

Error 108: Parameter not allowed

Error 109: Missing parameter

Error 113: Command not exist

Error 121: Invalid character in number

Error 141: Invalid character data

1. Turn off the power supply using the POWER switch.

2. Disconnect the AC power cord from the rear panel socket.

3. Locate the fuse holder integrated into the AC power socket on the rear panel.

4. Use a small flathead screwdriver to gently pry open the fuse holder cover. It typically has a small slot for this purpose.

5. Slide out the fuse cartridge.

6. Remove the old fuse from the cartridge.

7. Insert the new fuse of the specified type and rating into the cartridge:

100V/120V operation: T6.3A / 250V

220V/230V operation: T3.15A / 250V

8. Ensure the cause of the fuse blowout has been identified and fixed.

9. Slide the fuse cartridge back into the holder until it clicks into place.

10. Close the fuse holder cover.

11. Reconnect the power cord and turn the power supply on.

Coarse: 0.1V or 0.1A for each step.

Fine: 1mV or 1mA for each step.

Independent / tracking series / tracking parallel mode

CH1/CH2 knob selection

Fine/coarse editing mode

Output voltage/current level

Output on/off

Front panel lock/unlock

Buzzer on/off

Independent / tracking series / tracking parallel mode

CH1/CH2 knob selection

Fine/coarse editing mode

Output voltage/current level

Output on/off

Front panel lock/unlock

Buzzer on/off

Baud rate: 57600 or 115200

Parity bit: None

Data bit: 8

Stop bit: 1

Data flow control: None

1. Connect the USB cable to the slave port.

2. The connection will be automatically established, and the front panel shows a “USB…YES” message (display shows “USB” on CH2 and “YES” on CH1).

3. The power supply automatically enters the lock state (the Lock key LED will become activated).

1) Use the `LOCAL` command from the terminal connection.

2) Press the LOCK key on the front panel to return to local mode.

3) Disconnect the USB cable from the rear panel.

X: Channel number (1=CH1, 2=CH2; For IPS 4303S: 3=CH3, 4=CH4)

: Decimal number for current, range 0 to 3.200A.

`ISET1:2.234`: Sets the CH1 output current to 2.234A (for IPS X303S).

`ISET1:2.23`: Sets the CH1 output current to 2.23A (for IPS 3303D).

X: Channel number (1=CH1, 2=CH2; For IPS 4303S: 3=CH3, 4=CH4)

: Decimal number for voltage, range 0 to 32.000V.

`VSET1:20.345`: Sets the CH1 voltage to 20.345V (for IPS X303S).

`VSET1:20.3`: Sets the CH1 voltage to 20.3V (for IPS 3303D).

1. Take off the power cord and remove the fuse socket using a minus (flathead) screwdriver.

2. Replace the fuse in the holder.

For 100V/120V operation: T6.3A/250V

For 220V/230V operation: T3.15A/250V