U8031A

U8032A 

 Total power output (W) 

0 – 375 W 

 Voltage output (V)

Output Channel 1 & 2 (@ 0 to 40 °C)

0 to 30 V 

 0 to 60 V

 Current output (A)

Output Channel 1 & 2 (@ 0 to 40 °C)

0 to 6 A 

 0 to 3 A

 Number of outputs 

 Three isolated outputs

– Two variable: CV and CC operation

– One fixed: CV operation only

 5 V fixed output²

 Output Channel³

– Voltage/Current output: 5 V, 3A

– Output accuracy: ≤ 5% or (5 V ± 0.25 V)

– Vrms: < 2 mVrms, or Vpp: < 50 mVpp

– Load and line regulation: ≤ 5 mV

– Overload condition: 3 A + 20% (typical)

 Line & load regulation

 (for variable output)

CV: < 0.01% + 2 mV

CC: < 0.02% + 2 mA

 Ripple & noise

Based on calculation at temp 18 - 28 °C and

bandwidth at 20 Hz to 20 MHz

 CV: ≤1 mVrms, 0.5 mVrms (typical)

or ≤ 10 mVpp, 5 mVpp (typical)

CC: ≤ 1 mArms

 Load transient response time

Within 15 mV from full load to half load

and from half load to full load

< 50 us 

 Stability (output drift)

Following a 30-minute warm-up, with the output in the ON state according to the operating mode (CC with load or CV), and with a change in the output over 8 hours under constant load, line, and ambient temperature.

 Voltage: < 0.02%

Current: < 0.1%

 Programming accuracy (23 °C ± 5 °C)

 CV: ≤ 0.25% + 15 mV

CC: ≤ 0.30% + 15 mA

 Meter readback accuracy (23 °C ± 5 °C)

 CV: ≤ 0.25% + 10 mV

CC: ≤ 0.25% + 10 mA

 Programming/meter resolution

 Voltage: 10 mV (4 digits)

Current: 10 mA (3 digits)

 Maximum output float voltage

±240 Vdc 

 Display

 LCD with amber backlight

 Rotary knob for reading adjustment

 Yes

 Temperature coefficient (for 12 months)

±(% of output + offset)

 Output

– CV: (0.01% + 1 mV)/°C

– CC: (0.01% + 1 mA)/°C

OVP, OCP

– CV: < 0.05%/°C

– CC: < 0.05%/°C

 Output voltage overshoot

During turn-on or turn-off of AC power, if output control is set less than 1 V

 < 1 V

 Voltage programming speed to within 1 % of total excursion

 30 V

60 V 

 Up

Full Load

No Load 

 80 ms 

80 ms

200 ms

100 ms

 Down

Full Load

No Load

 30 ms 

150 ms

 30 ms

300 ms

 Over temperature protection

 Yes

 Last memory setting enabled

Yes 

 Three memory storage locations for voltage and current settings

Yes 

 Erasing non-volatile memory

Yes, erasable through front panel 

 Rack mount capability

Yes, front panel and rear have rack-mountable support 

 Input power option (selectable) 

100 V_ac ± 10%, 47 to 63 Hz

115 Vac ± 10%, 47 to 63 Hz

230 Vac ± 10%, 47 to 63 Hz

 Maximum input power

600 VA 

 Fuse

External, customer assessable  

 Operating temperature

0 to 40 °C 

 Storage temperature

–40 to 70 °C 

 Humidity 

 15% RH (relative humidity) to 85% RH at 40 °C (non condensing)

 Altitude

Up to 2000 m 

 Fan acoustic noise 

 < 60 dB sound power

 Environment of use 

 – Installation category II

– Pollution Degree 2

 Output connections

+Out, –Out, and chassis ground on the front panel.

(Either positive or negative output terminal may be grounded or can be operated floating at up to a maximum of 240 V off ground. Total output voltage to ground must not exceed 240 Vdc) 

 Binding posts 

Output binding post located horizontally and side by side 

 I/O connections 

 N/A

 AC input 

 3 pins standard IEC AC power connector with fuse and line selection at the rear

Overvoltage protection accuracy ± 

(% of output + offset) 

< 0.5% +0.5 V 

Overvoltage protection programmable range 

 0.1 to 33.0 V

0.1 to 66.0 V 

 Overvoltage protection response time

 < 10 ms

 Overcurrent protection accuracy ± 

(% of output + offset)

 < 0.5% + 0.5 A

Overcurrent protection programmable range 

 0.1 to 6.6 A

0.1 to 3.3 A 

 Overcurrent protection response time

 < 10 ms