| Electrical Specifications |
| Output ranges: |
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| Range 1 |
| 0-56 V, 0-2 A |
| Range 2 |
| 0-25 V, 0-4 A |
| Range 3 |
| 0-56 V, 0-500.0 mA |
| Outputs |
| 1 |
| Output power |
| 112 W |
| Interface (GPIB/RS-232/USB |
| Yes |
| Voltage setting |
| By floating point numeric entry or rotary jog wheel; resolution 1 mV |
| Current setting |
| By floating point numeric entry or rotary jog wheel; resolution 1 mV or 0.1 mA depending on range |
| Setting accuracy |
| Voltage - 0.03% +/- 5 mV. Current 0.2% +/- 5 mA, 0.5 mA |
| Output mode |
| Operation in constant voltage or constant current modes with automatice cross-over and mode indication by LEDs |
| DC output switch |
| Sets output voltage and current levels to zero when Off |
| Output terminals |
| 4mm terminals on 19mm (0.75") spacing |
| Load regulation |
| Voltage: <0.01% + 2mV
Current: <0.01% + 250mA; <0.01% + 50mA on 500mA range (measured at output terminals using remote sense) |
| Line regulation |
| Voltage: <0.01% + 2 mV for 10% line change Current: <0.01% + 250mA; <0.01% + 50mA on 500mA range |
| Ripple and Noise |
| Typically <0.35mV rms 2m V p-p CV mode, and <0.2mA rms, <20mA rms (500 mA range) CI mode |
| Transient response |
| 50ms to within 15 mV of set level for a change in load current from full load to half load or vice versa |
| Temperature coefficient |
| < +/- (50ppm + 0.5 mV)/oC (voltage) |
| Remote sense |
| Eliminates up to 0.5 V drop per lead. Remote sense operation selected from front panel and indicated by LED |
| Sense terminals |
| Recessed sprung sockets for direct insertion of wires. Duplicated on rear terminal block (P versions only) |
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| General Specifications |
| Power requirements |
| 115 V or 230 V +/- 10% (adjustable internally, option HV for factory set 230 VAC input), 50/60 Hz. Installation Category ll |
| Operating range |
| 5oC to 40oC, 20% to 80% RH |
| Storage range |
| -40oC to 70oC |
| Dimensions (HxWxD) |
| 6.3 x 5.5 x 11.4"/160 x 140 x 290 mm |
| Weight |
| 12.1 lbs/5.5 kg |
| Benchtop Operation |
| Folding legs are incorporated that can be used to angle the front panel upwards when required |
| Rack mount operation |
| 19 inch 4U mount for up to three single output units or one triple plus one single; Blanking plates available for un-used sections |
| Warranty |
| 3 years |
| Output Protection and Metering |
| Output protection |
| Output will withstand forward voltages of up to 20 V above rated output voltage. Reverse protection by diode clamp for current up to 3 A |
| Fault condition trip |
| The output will be shut down if any of the four trip conditions listed below occur. In addition to the output eing set Off, an isolated rear panel signal is also activated. |
| Over voltage (OVP) |
| Settable 1V to 62 V in 0.1 V steps |
| Over current (OCP) |
| Settable 0.1 A to 4.4 A in 0.01 A steps |
| Over temperature |
| Monitors internal temperature rise to protect against excess ambient temperature or blocked ventilation slots |
| Sense Error |
| Monitors the voltage between the remote sense terminals and output terminals to protect against mis-wiring |
| Trip output signal |
| Isolated open-collector output signal on rear panel |
| Meter resolution and accuracy: |
| Voltage (CI mode): |
| Resolution 10 mV
Accuracy +/- (0.1% of reading + 10 mV) |
| Current (CV mode): |
| Resolution 0.001 A; 0.1 A on 500 mA range
Accuracy +/- (0.2% + 0.005 A); +/- (0.2% + 0.5 mA) on 500 mA range |
| V x A |
| Resolution 0.01 W; 0.001 W on 500 mA range Accuracy +/- (0.3% + 0.05 W); +/- (0.3% +0 0.005 W) on 500 mA range |
| Store/Recall Settings |
| Number of stores |
| 10 plus power-down store |
| Memory type |
| Non-volatile using EEPROM |
| Parameters stored |
| Range, Set volts, Set current, OVP, OCP |
| Recall system |
| Settings are previewed onto the displays before being actioned |
| Bus Interfaces (P Suffix versions) |
| USB |
| Standard USB hardware connection Supplied with device driver for Win 98 or above. Operates as a virtual COM port. |
| RS-232 |
| Variable baud rate 19,200 max. Single instrument or Addressable RS-232 |
| GPIB |
| Conforming with IEEE-488.1 and IEEE-488.2 (N.B. All three interfaces incorporate full control, readback and status reporting) |
| BUS type selection |
| From front panel (GPIB/RS-232/USB) |
| Address selection |
| From front panel (1 to 31) |
| Baud selection |
| RS-232 only. Fron front panel (600 to 19200 baud) |
| Setting resolution |
| Voltage - 1mV, Current 0.1 mA (0.1 mA on 500 mA range) |
| Accuracy |
| See specifications under Outputs and Metering |
| Remote control response time: |
| Interface |
| Typically < 80 ms |
| Output voltage |
| Response time varies with range and load conditions. Typical time to settle to within 1% of the total excursion on a 35 V / 3 A range with full load is <25 ms. With no load it is <7 ms for an upward charge and < 600 ms for downward. |
| Regulatory Approvals |
| CE-marked units meet: EN61010-1 and EN61326 |
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1. General specifications apply for 5 to 4oC temperature range. Accuracy specifications apply for 18 to 28oC temperature range after 1 hour warm-up |
with no load and calibration at 23oC. Typical specifications are determined by design and not guaranteed. |
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Note: Specifications subject to change without notice. |
