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ET3731 30V 5A digital DC power supply with usb interface
ET3731 30V 5A digital DC power supply with usb interface
ET3731 30V 5A digital DC power supply with usb interface
ET3731 30V 5A digital DC power supply with usb interface
ET3731 30V 5A digital DC power supply with usb interface

ET3731 30V 5A digital DC power supply with usb interface

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Product Overview

Description


Product Description

ET37 Series Programmable Power Supply  


Main features:


4.3" TFT LCD screen;
Wave-form display supported, real-time display of curves of output voltage and current changes;
Simple operating system, and straight-forward interface, for easy mastering;
Independently adjustable output; 1-channel (ET372X)/2-channel (ET372X), adjustable output 30V/3A, 1-channel fixed output with adjustable 2.5V/3.3V/5V positions; a maximum total output power up to 195 W;
Four output modes: independent/dual output/series/parallel connection, providing wider output range, with a maximum output voltage up to 60V, and a maximum output voltage up to 6A;
High precision and high definition;
Low output ripple and noise;
Excellent load regulation and linear regulation;
Timed output function supported, up to 112 groups;
Save and Recall function, up to 10 sets of parameter configuration;
USB device interface provided, supporting SCPI remote command control;
Over-voltage/over-current protection functions, flexible setting of over-voltage and over-current parameters, effective protection of loads;
Secondary over-temperature protection, for double over-temperature protection by software and hardware;
Smart fan speed control, regulating fan speed according to working condition, which effectively reduce fan noise;
Protection for output polarity reversal
Keyboard lock, to prevent misoperation.

 

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More Options For ET37 Series (Can click )
\t\t
\t\t
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ET3731
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USD 240-400
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ET3738
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USD 280-460
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Model
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ET3721
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  ET3728 
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ET3731
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ET3738
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Maximum power
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105W
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155W
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195W
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305W
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Channel number
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2 (CH1 variable, CH2 fixed)
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3 (CH1, CH2 variable, CH3 fixed)
\t
 




DC output

(0°C-40°C)
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Voltage/current(Rated value)
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CH1:0~30V,0~3A 
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CH1:0~30V,0~5A
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CH1,CH2:0~30V,0~3A
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CH1,CH2:0~30V,0~3A
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Over-voltage/over-current protection
(maximum settable range)
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CH1:10mV~33V,10mA~3.3A 
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CH1:10mV~33V,10mA~5.5A
\t
CH1,CH2:10mV~33V,10mA~3.3A
\t
CH1,CH2:10mV~33V,10mA~5.5A
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2.5V/3.3V/5V

Fixed output
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Current output 0~3A(ET3721, 3731, ),Or 0~1A(ET3728, 3738 );
Output precision: <5% ; Load regulation: ≤15*minimum scale interval;
Linear regulation: ≤5*minimum scale interval ; 
Ripple and noise (20Hz~7MHz): ≤2mVrms;
Overload: 3A(ET3721, 3731 ),or 0~1A(ET3728 ,3738 );
(Parameters of the fixed position are all listed. The parameters below apply to the variable positions of the voltage.)
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Linear regulation rate (±output percentage + quantity of minimum scale interval(s))
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Voltage
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≤0.01%+2
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Current
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≤0.01%+3
\t
Load regulation rate (±output percentage + quantity of minimum scale interval(s))
\t
Voltage
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≤0.01%+2
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Current
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≤0.05%+3
\t
Tracking operation (±output percentage + quantity of minimum scale interval(s))
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Tracking error
\t
/
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≤0.5%+10 of Master 
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Parallel regulation rate
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Linear
\t
/
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≤0.01%+5
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Load
\t
/
\t
≤0.01%+5
\t
Series regulation rate
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Linear
\t
/
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≤0.01%+10
\t
Load
\t
/
\t
≤0.02%+10
\t
Ripple and noise (20Hz~-7MHz)
\t
Voltage
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≤1mVrms
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≤1mVrms
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Current
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≤1.5mArms
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≤1.5mArms
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Programming/backward reading resolution
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Programming
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Voltage
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0.03%+10
\t
0.03%+10
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Current
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0.3%+10
\t
0.3%+10
\t
Backward reading
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Voltage
\t
0.03% +10
\t
0.03% +10
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Current
\t
0.3% +10
\t
0.3% +10
\t
 Load transient response time
\t
It takes less than 50 μs for the output current to change from full load to half load, or from half load to full load and for the output voltage to recover to 15mV.
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Stability (±output percentage + quantity of minimum scale interval(s))
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Voltage
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≤0.02%+10
\t
≤0.02%+10
\t
Current
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≤0.1%+1
\t
≤0.1%+1
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Temperature coefficient (±output percentage + quantity of minimum scale interval(s))
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Voltage
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≤0.02%+10
\t
\t
≤0.02%+10
\t
\t
Current
\t
≤0.02%+10
\t
\t
≤0.02%+1
\t
\t
Other
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Command processing time
\t
<200ms
\t
Cooling method
\t
Fan cooling
Detailed Images
Our Company

Hangzhou Zhongchuang Electron Co.,Ltd, located in Hangzhou of Zhejiang Province, has been the earliest and most professional enterprise of electronic instruments since 2003 with ISO9001 certificate .
Provide products for distributors and whotelsales at home and abroad


 Ms Cathy                   www. east-tester.com          13396517215      057156770221

Exhibition

With 10 years of excellent quality, advanced services and competitive prices, zhongchuang electron has won numerous customers' trust and support. Now our products have been exported to many countries and regions all over the world, like America, India, Korea, Germany, Mexico.

Workshop

We have devoted ourselves to the whole production including R&D, production, sales and after service with a professional and experienced R&D team and QC team.
The main products we are supplying are digital multimeter, process calibrator, function generator, LCR meter, programmable power supply, dry block temperature calibrator, combined multichannel calibrator and so on.

Packing & Delivery

 Shipping :
1. By Couriers: DHL, UPS, FEDEX, TNT are the main courier we are co-operating at present.
2. By Air: Delivery from the Shanghai airport to customers' destination city air port.
3. For large order, we can do FOB shanghai or ningbo price, CIF price as u asked.

Contacts

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