Load Regulation:
For any load change, measured at the output terminals, using
remote sense:
Voltage <(0·01% + 2mV).
Add typically 2·5mV for a 0·5V drop in the positive output lead.
Specification applies for sense lead resistance <0·5
Ω
.
Current typically <(0·01% + 500µA).
Line Regulation:
Voltage <(0·01% + 2mV) for 10% line change.
Current <(0·01% + 250µA) for 10% line change.
Temperature Coefficient:
Voltage: typically <(50ppm + 0·5mV)/°C
Current: typically <( 1mA)/°C;
<( 0·1mA)/°C on 500mA range.
Output Protection:
Output will withstand forward voltages of up to 20V above rated output
voltage. Reverse protection by diode clamp for currents up to 3A.
OTP Protection:
Output trips off for over-temperature.
OVP and OCP Protection:
(XEL-P models only)
Measure-and-compare over-voltage and over-current protection are
implemented in firmware and can be set via the remote interfaces only.
Output trips off for OVP and OCP. Setting resolution: 10mV and 1mA.
Response time: typically 500ms.
For manual operation (Local mode) OVP and OCP are fixed at 105% of
the instrument range maximum.
METER SPECIFICATIONS
Display Type:
Dual 4-digit meters, 10mm (0·39") LED.
Voltage: Resolution
10mV
Accuracy ± (0·1% of r 10mV)
Current:
Resolution 1mA; 0·1mA on 500mA range.
Accuracy ± (0·3% + 3mA) to 3A, ± (0·5% + 3mA) to 6A;
± (0·3% + 0·3mA) on 500mA range.
Current Meter Average:
Selects a 2s time constant (normally 20ms) for averaging of rapidly
varying load currents.
ADDITIONAL SPECIFICATIONS – XEL 30-3D QUAD-MODE DUAL
Independent Mode:
Each output is fully independent and isolated. Operation is equivalent to
two single power supplies.
Tracking Mode:
Tracking Accuracy:
The two outputs remain isolated but the Slave voltage controls are
disabled and the Slave voltage is set equal to the Master voltage.
Slave voltage = Master voltage ±(0.1% of Master voltage ±10mV).
Ratio (%) Tracking Mode:
Tracking Accuracy:
As tracking but the Slave voltage controls set an output voltage between
0% and 101% of the Master voltage. Once set, varying the Master voltage
will create the same percentage change in the Slave voltage setting.
% change in Slave voltage = % change of Master voltage ± 0.1% ±10mV.
Parallel Mode:
The Master output operates as a single output power supply with twice
the current capability (0.2mA to 6A). The Slave is disabled (and its
displays are turned off).
Both On / Both Off:
Each output has an independent DC On/Off control; these additional keys
can be used to turn both outputs on or off simultaneously. These keys
operate in all four modes.
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