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The PSU300 Series has been discontinued. Please see the PSU505 as a possible substitute.| Model | PSU301 | PSU302 | PSU303 | PSU304 | PPSU305 | ||
| Max Output Power | 30 W | 60 W | 90 W | 70 W | 165 W | ||
| Output Voltage | HIGH | LOW | HIGH | LOW | |||
| 0 to 15 V | 0 to 30 V | 0 to 15 V | 0 to 30 V | 0 to 30 V | 0 to 30 V/ 0 to -30 V fixed 5 V | 0 to -30 V fixed 3.3 V/5 V |
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| Setting Resolution | 10 mV | 10 mV | 10 mV | 10 mV | 10 mV | 10 mV | 10 mV |
| Max Output Voltage | 16 V | 32 V | 16 V | 32 V | 32 V | 32/-32 V | 32/-32 V |
| Dual Tracking | — | — | — | — | — | 0 to ±30 V | 0 to ±30 V |
| Tracking Deviation | — | — | — | — | — | ±20 mV | ±20 mV |
| Output Current | 0 to 2 A | 0 to 1 A | 0 to 4 A | 0 to 2 A | 0 to 2.5 A | 0 to 1 A/ 0 to -1 A 2 A | 0 to 2.5 A/ 0 to -2.5 A 3 A |
| Setting Resolution | 1 mA | 1 mA | 1 mA | 1 mA/td> | 1 mA | 1 mA | 1 mA |
| Tracking Deviation | 2.4 A | 1.2 A | 4.4 A | 2.4 A | 3A | 1.2 A/-1.2 A CL = 2.2 A | 3 A/-3 A CL = 3.3 A |
| Dual Tracking | — | — | — | 0 to ±1 A | 0 to ±2.5 A | ||
| Tracking Deviation | — | — | — | ±2 mA | ±5 mA | ||
| Constant Voltage Characteristics (at rated outputs) | |||||||
| Line Regulation (10% AC) | — | 1 mV | — | 1 mV 5 mV | 1 mV 5 mV |
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| Load Regulation (100% Load Change) | — | 2 mV | — | 2 mV 10 mV | 2 mV 10 mV |
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| Ripple/Noise rms (10 Hz to 20 mHz) | — | 0.5 mVrms | 1.5 mVrms | 1.5 mVrms 2 mVrms | 2 mVrms |
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| Ripple/Noise Peak (10 Hz to 20 MHz) | — | 5 mV p-p | — | 10 mV p-p 20 mV p-p | 10 mV p-p 20 mV p-p |
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| Transient Response | — | 200 µs typical | — | 200 µs typical | 200 µs typical | ||
| Temp Coefficient | — | — | — | 100 ppm/°C typical | ±5 mA | ||
| Constant Current Characteristics (at rated outputs) | |||||||
| Line Regulation (10% AC) | — | 5 mA typical | — | 15 mA typical | 15 mA typical | ||
| Load Regulation (100% Load Change) | — | 5 mA typical | — | 10 mA typical | 10 mA typical | ||
| Ripple/Noise rms (10 Hz to 20 mHz) | — | 1 mA rms typical | — | 1 mA rms typical | 1 mA rms typical |
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| Ripple/Noise Peak (10 Hz to 20 MHz) | — | 5 mA p-p typical | 10 mA p-p typical | 5 mA p-p typical | 5 mA p-p typical |
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| Temp Coefficient | — | — | — | 200 ppm typical | — | ||
| Display | 16 character x 2 line backlit LCD; front-panel status indicator with beeper | ||||||
| Voltage Accuracy* | ±0.2% rdg + 2 digits | ||||||
| Display | ±0.5% rdg + 5 digits | ||||||
| Display | ±240 Vdc | ||||||
| Temp Range | Operating: 0 to 40ºC (32 to 104ºF), less than 80% RH; Storage: -45 to 75ºC (-49 to 167ºF), less than 80% RH | ||||||
| Dimensions (W x H x L) | 221 x 86 x 300 mm (8.7 x 3.4 x 11.8") | 213 x 132 x 399 mm (8.4 x 5.2 x 15.7") |
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| Temp Range | Approx. 4.5 kg (10 lb) | Approx. 4.5 kg (12 lb) | Approx. 8.2 kg (18 lb) | ||||
| Cooling | Forced air | ||||||
| RS232 Interface | Standard, port configuration: asynchronous 2400 baud, 8 data bits, 1 stop bit, no parity | ||||||
| RS232C DCE Interface | 9-pin D-sub connector | ||||||
| Power 115 Vac ± | 47 to 63 Hz, 1 A, approx. 250 W | 47 to 63 Hz, 2 A, approx. 120 W | 47 to 63 Hz, 2 A, approx. 150 W | 47 to 63 Hz, 2 A, approx. 110 W | 47 to 63 Hz, 2 A, approx. 250 W |
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