Description
The UDP3305C programmable DC power supply is a cost-effective, four-channel independent laboratory power supply from UNI-T. The power supply contains a classic linear transformer, and in channels CH1 and CH2 it allows operation in constant voltage (CV) mode within the range of 0 to 30V or in constant current (CC) mode from 0 to 5A. Channel CH3 provides a constant output voltage with the option to select a level of 1.8V, 2.5V, 3.3V or 5.0V and features overload protection when the current draw reaches 3.2A. In addition, there is a USB connector on the front panel, which serves as channel CH4 and can be used to charge, for example, a mobile phone at 5V/2A.
Channels CH1 and CH2 can operate independently, or can be connected internally in series or in parallel, in which case the power supply provides a voltage of 0 to 60 V or 0 to 50 V or 30 V/10 A.
The laboratory power supply features an EBTN display with 6 high-precision indicators that simultaneously display voltages, currents and power in both CH1 and CH2 channels to 4 decimal places.
The power supply has programmable parameters. It features 5 memory slots for easy storage and recall of preset modes and a lock button to prevent unwanted changes to the parameters. On the rear of the power supply housing are USB-Device and RS232 connectors and a DIGITAL I/O interface for remote control of the power supply. Using the supplied software, it is possible to record and display the consumption or load characteristics of the connected load in real time on the connected PC in an Excel spreadsheet or a graph, and it can communicate with the computer via SCPI communication commands. Regular calibrations can be performed via the software.
The power supply contains a temperature-controlled fan; the long-term temperature overload of the laboratory power supply’s transformer is monitored by sensors which shut down the power supply when the limit value is reached and restart it after cooling.
Product parameters:
- fine adjustment of current and voltages CH1/2 in both channels. Four-digit displays for immediate monitoring of voltages, currents and powers in channels CH1 and CH2
- Voltage setting from 0 to 30V with a resolution of 10mV
- Current setting from 0 to 5A with a resolution of 1mA
- Operation of CH1 and CH2 channels in constant voltage mode, with the option to connect CH1 and CH2 channels in series or in parallel
- Overvoltage protection (OVP), overcurrent protection (OCP), over-temperature protection (OTP)
- CH3 channel with a fixed voltage of 1.8V; 2.5V; 3.3V or 5.0V, max. 3.2A
- CH4 channel on the front panel USB port for charging, e.g. a mobile phone
- built-in buzzer to indicate status changes
- Lock buttons to prevent unwanted changes to parameters
- USB-Device, RS232, and DIGITAL I/O interfaces on the rear panel
- Temperature-controlled cooling fan
- Disconnection from the power supply in the event of a voltage transformer overload
- rear voltage selector
110V/120V/220V/230V (AC 50/60Hz)
Technical parameters:
- Nominal output voltage CH1 and CH2: 0 to 30V
- Nominal output current CH1 and CH2: 0 to 5 A
- total output voltage
- 30 V
resolution (CH1 and CH2): 10 mV/1 mA
- in (CV) mode, voltage setting accuracy (CH1 and CH2): ≤ (0.01% of measured value +3 mV, at current ≤ 3 A)
- in (CV) mode, voltage setting accuracy (CH1 and CH2): ±5% of the measured value, for current > 3 A
- in (CC) mode, current setting accuracy (CH1 and CH2): ≤ (0.2% of measured value +3mA)
- noise and distortion (20 Hz to 20 MHz) at CH1 and CH2 outputs: ≤1 mV RMS / ≤3 mA RMS – nominal output voltage / ≤3 mA RMS – nominal current 1.8 V; 2.5 V; 3.3 V; 5.0 V (±3%, can be precisely set)/max. 3.2 A
- noise and hum (20 Hz to 20 MHz) at CH3 output: ≤2 mV
- Output voltage/max. current in CH4 channel (USB): 5 V ± 0.25 V/2 A
- temperature coefficient of voltage/current: ≤ 300 ppm/°C // ≤ 300 ppm/°C
- Nominal supply voltage: AC 110V/120V/220V/220V/20V (protection)
- protection (with 220/230V AC supply): fuse type: T3.13AL/250V (20x5mm)
- dimensions (width x height x depth): 16 mm x 40 x 40 mm approx. 10.2 kg
- gross weight of the box: 12 kg
Contents of individual package:
- UDP3305C laboratory power supply: 1 pc
- power cable: 1 pc
- USB-A to USB-B interface cable (UT-D14): 1 set of connection cables
- 1 pc
set
- Spare fuses: 1 pc
- user manual: 1 pc
- RS232 communication cable (on request): 1 pc
Packaging for bulk customers:
- standard quantity per box: 2 pcs
- Standard box dimensions: 445 x 3003 mm
MANUFACTURER: UNI-T
PC software download link:
https://instruments.uni-trend.com/EU-EN/powersupplies/udp3300.html
