XFR is the smart choice for research, product development and production test applications such as R&D, magnet control, product design, ATE, process control, electroplating and burn-in. The unique features of XFR make it the best choice for OEM applications where high power and a wide adjustment of output voltage or current are required in a full 19-inch rack package. Choose from twenty 2800-watt and 1200-watt models.

Key Features

• Analog programming
• Constant voltage or constant current operation
• LabView® and LabWindows® drivers
• Standby mode
• Front panel button preview of voltage, current, OVP
• CE, CSA, UL approvals
  

Electrical Specifications 1
	Output Ratings:
	Output Voltage		0-35 V
	Output Current		0-35 A
	Output Power		1225 W
	Line Regulation: 2
	Voltage (0.01% of Vmax + 2 mV)		2.5 mV
	Current (0.01% of Imax + 2 mA)		4 mA
	Load Regulation: 3
	Voltage (0.02% of Vmax + 5 mV)		3 mV
	Current (0.02% of Imax + 5 mA)		5 mA
	Meter Accuracy:
	Voltage (0.5% of Vmax + 1 count)		0.4 V
	Current (0.5% of Imax + 1 count)		0.45 A
	Output Noise & Ripple:
	Voltage rms		8 mV
	Voltage (p-p) (0-20 MHz)		50 mV
	Current rms		60 mA
	Drift (8 hours): 4
	Voltage (0.05% of Vmax)		17.5 mV
	Current (0.05% of Imax)		17.5 mA
	Temperature coefficient: 5
	Voltage (0.02% of Vmax/° C)		7 mV
	Current (0.03% of Imax/° C)		10.5 mA
	Program Slew Rate: 6
	Rise Time		100 ms
	Fall Time		100 ms
	OVP adjustment range: (5% to 110% of Vmax)		1.75-38.5 V
	Efficiency: 7		83%
	Interface Specifications 1,9
	Program Resolution (16-bit):
	Voltage		0.59 mV
	Current		0.59 mA
	OVP		0.59 mV
	Program Accuracy:
	Voltage (0.2% + 10 mV)		75 mV (+/- 0.3%)
	Current (0.3% + 10 mA)		200 mA (+/- 0.1%)
	OVP (0.5% + 100 mV)		350 mV
	Readback Resolution (16-bit):
	Voltage		0.59 mV
	Current		0.59 mA
	Readback Accuracy:
	Voltage (0.2% + 20 mV)		75 mV (+/- 0.12%)
	Current (0.3% + 20 mA)		200 mA (+/- 0.1%)
	1. Specifications indicate typical performance at 25 ° C +/- 5° C, nominal line input of 120 VAC.
	2. For input voltage variation over the AC input voltage range, with constant rated load.
	3. For 0-100% load variation, with constant nominal line voltage.
	4. Maximum drift over 8 hours with constant line, load and temperature, after 30 minutes warm-up.
	5. Change in output per ° C change in ambient temperature, with constant line and load.
	6. Measured with stepped 0-10 V analog programming source and a resistive load.
	7. Typical efficiency at 100 VAC input voltage and rated output power.
	8. Derate output current on 6 V model by 1.5 A per ° C for operating temperatures 30-50° C. 9. Apply accuracy specifications according to the following voltage program accuracy example:     Set a model 20-60 power supply to 10 volts. The expected result will be within the range     of 10 volts +/- 75 mV +/- 0.12% of the set voltage of 10 volts.
	General Specifications
	Operational AC input voltage		85-130 VAC or 190-264 VAC 1 phase (17 A @ 120 VAC; 8.8 A @ 230 VAC typical), 47-63 Hz. Automatic range detect.
	Switching Frequency		6 V to 40 V models: nominal 78 kHz (156 kHz output ripple); 60 V to 600 V models: nominal 62.5 kHz (125 kHz output ripple).
	Time Delay		7 s maximum from power on until output stable
	Voltage Mode Transient Response Time		<3 ms for output voltage to recover within 0.5 % of its rated voltage after a step change in load current of up to 10% to 90% of rated output
	Maximum Voltage Differential		+/-600 VDC from output to safety ground
	Remote On/Off and Interlock		2.5-15 V signal or TTL-compatible input, selectable logic
	Remote Analog Programming		Voltage and current programming inputs (source must be isolated): 0-5 k, 0-10 k resistances;0-5 V, 0-10 V (default) voltage sources
	Remote Analog Monitoring		Voltage and current monitor outputs 0-5 V, 0-10 V (default) ranges for 0-100% of output
	Remote Programming and Monitoring Accuracy		1% zero to full scale output for the default range
	Maximum Remote Sense Line Drop Compensation		5 V/line (Line drop is subtracted from total voltage available at supply output)
	Operating Temperature Range		32° F to 122 ° F (0° C to 50° C)
	Storage Temperature Range		-4° F to 158° F (-20° C to 70° C)
	Humidity Range		Up to 90% RH, non-condensing
	Front Panel Voltage and Current Control		10-turn voltage and current potentiometers
	Front Panel Voltage Control Resolution		0.02% of maximum voltage
	AC Input Connector Type		3-terminal, 34 A/250 V, wire clamp connector with strain relief cover
	Main Output Connector		6 to 40 V models: nickel-plated copper bus bars with bus bar shield; 60 V to 600 V models: 4-terminal wire clamp connector with strain relief
	Weight (one unit)		18 lb (8.2 kg) approx
	Dimensions (H x W x D)		1.7 x 19.0 x 20.0” (43.2 x 429.4 x 508.1 mm)
	Options
	GPIB-XFR1		GPIB Interface card (16-bit)
	RS-232-XFR1		RS-232 Interface card (16-bit)
	ISOL-XFR1		ISOL Interface card provides isolated analog control and readback
	ISOL-420		4-20 mA isolated analog control
	M13A		Locking knobs for front panel controls
	Regulatory Approvals
	CE-marked units meet: EN61010-1, EN61000-6-2 and EN61000-6-4; UL Listed to UL3111-1; CSA certified to CSA C22.2 No 1010.1; Meets USA EMC standard: FCC, part 15B, class A; Meets Canadian EMC standard: ICES-001, Class A.
Note: Specifications subject to change without notice.