TTi EX752M 直流穩(wěn)壓電源
EX752M - Higher voltage dual dc bench power supply - - Specifications
300W Multi-mode Dual - 75V/150V
Dual outputs with three modes of operation:
2 x 75V/2A
1 x 75V/4A
1 x 150V/2A
Independent digital voltage and current meters
for each output with 100mV and 10mA resolution
Constant voltage or constant current operation
Compact design uses less bench space
Silent fan-free cooling
DC output switches, automatic mode indication
Touch-proof safety terminals
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 compley 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: <200?s 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: +5?C to +40?C, 20% to 80% RH
Storage Range: -40?C to + 70?C
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 （HxD）.
Weight: 4.3kg.
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