| DC OUTPUT | 
|   | Output Volts (V) | Output Amps (A) | 
|  |  |  | 
|  |  |  | 
|  |  |  | 
| GPS-1830D | 0 ~ 18 | 0 ~ 3 | 
| GPS-1850D | 0 ~ 18 | 0 ~ 5 | 
| GPS-3030D | 0 ~ 30 | 0 ~ 3 | 
| GPS-3030DD | 0 ~ 30 | 0 ~ 3 | 
| CONSTANT VOLTAGE OPERATION | 
| Regulation | Line regulation≦0.01% + 3mVLoad regulation≦0.01% + 3mV (rating current≦3A)
 Load regulation≦0.01% + 5mV (rating current > 3A)
 | 
| Ripple & Noise | ≦0.5mVrms 5Hz ~ 1MHz (rating current≦3A)≦1mVrms 5Hz ~ 1MHz (rating current > 3A)
 | 
| Recovery Time | ≦100μS ( 50% load change, minimum load 0.5A ) | 
| Temp. Coefficient | ≦300ppm/°C | 
| Output range | 0 to rating voltage continuously adjustable | 
| CONSTANT CURRENT OPERATION | 
| Regulation | Line regulation≦0.2% + 3mALoad regulation≦0.2% + 3mA
 | 
| Ripple Current | ≦3mArms | 
| Output Range | 0 to rating current continuously adjustable (Hi/Lo range switchable) | 
| METER | 
| Analog
 | V-meter and I-meter | 
| 2.5 class | 
| Dimensions 50 x 50 mm | 
| Digital | 31∕2 digital 0.5" LED display (3030D) | 
| 31∕2 digital 0.39" LED display (3030DD) | 
| Accuracy ±(0.5﹪of rdg + 2 digits) | 
| INSULATION | 
| Chassis and Terminal | 20MΩ or above (DC 500V) | 
| Chassis and AC Cord | 30MΩ or above (DC 500V) | 
| POWER SOURCE | 
|   | AC 100V/120V/220V/240V±10%, 50/60Hz | 
| ACCESSORIES | 
|   | User manual x 1Power cord x 1
 Test lead GTL-105 x 1
 European test lead GTL-201A (optional)
 | 
| DIMENSIONS & WEIGHT | 
|   | 128(W) x 145(H) x 285(D)mmApprox. 5kg
 |