Laboratory Power Supply Products from TTi - Thurlby Thandar Instruments

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DESCRIPTION

The EX752M is a dual output 300 watt PSU with Multi-Mode capability. This enables it to operate as a dual power supply with two independent and isolated outputs, or as a single power supply of double the power.

As a dual, each output provides 0 to 75V at 0 to 2A (mode A). As a single, the output can be selected as either 0 to 75V at 0 to 4A (mode B) or 0 to 150V at 0 to 2A (mode C). In single modes, the unused half of the unit becomes completely inoperative and its displays are blanked.
 

TECHNICAL SPECIFICATIONS

OUTPUT

Voltage/Current Ranges

2 x (0 to >75V; 0 to >2A) (300W nominal power)

Multi-Mode Operation

Three modes of operation can be selected via a rotary switch:

Mode A: Two independent and isolated outputs (75V/2A each).

Mode B: One output of double the current capability (75V/4A).
(Unused output is disabled and its displays are blanked).

Mode C: One output of double the voltage capability (150V/2A).
(Unused output is disabled and its displays are blanked).

Output Setting & Control

Voltage Setting: By coarse and fine controls.

Current Setting: By single logarithmic control.

Output Mode: Constant voltage or constant current with automatic cross-over. CC indicator in constant current mode.

Output Switch: Electronic, non isolating. Preset voltage and current limit displayed when Output off.

Output Performance

Ripple & Noise: Typically <2mV rms, <15mV pk-pk (CV mode, 20MHz bandwidth)

Load Regulation: Modes A and B - <0·01%; Mode C - <0·1% + 2mV (90% load change)

Line Regulation: <0·01% of maximum output for 10% line change.

Transient Response: <200µs to within 50mV of setting for a 5% to 95% load change.

Temp. Coefficient: Voltage: typically <100ppm/°C.

Output Protection

Output Protection: Outputs will withstand forward voltages up to 85V/170V.
Over-voltage trip operates above these levels. Reverse protection by diode clamp for currents to 3A.

Output Connections

Output Terminals: High voltage touch-proof terminals.

Terminals can accept standard 4mm plugs, fork terminals and bare wires.

METER SPECIFICATIONS

Display Type: 3 digit meters for voltage and current;
(4 digit on second voltmeter to maintain resolution above 100V).

Voltage Meter

Resolution: 100mV

Accuracy: 0·3% of reading ± 1 digits

Current Meter

Resolution: 10mA

Accuracy: 0·6% of reading ± 1 digits

GENERAL

Input

AC Input: 110V to 240V 50/60Hz (universal input)

VA Rating: 500VA

Temperature & Environmental

Operating Range: +5ºC to +40ºC, 20% to 80% RH

Storage Range: -40ºC to + 70ºC

Environmental: Indoor use at altitudes up to 2000m, Pollution Degree 2.

Cooling: fan-less convection cooling

Safety & EMC

Safety: Complies with EN61010-1

EMC: Complies with EN61326

Physical

Size: 260x160x320 mm (WxHxD).

Weight: 4.3kg.