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Chinese Professional Dc Electronic Load Tester - ET37 Series Programmable DC Power Supply – Zhongchuang Featured Image
  • Chinese Professional Dc Electronic Load Tester - ET37 Series Programmable DC Power Supply – Zhongchuang
  • Chinese Professional Dc Electronic Load Tester - ET37 Series Programmable DC Power Supply – Zhongchuang
  • Chinese Professional Dc Electronic Load Tester - ET37 Series Programmable DC Power Supply – Zhongchuang
  • Chinese Professional Dc Electronic Load Tester - ET37 Series Programmable DC Power Supply – Zhongchuang

Chinese Professional Dc Electronic Load Tester - ET37 Series Programmable DC Power Supply – Zhongchuang

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Our commission is to serve our buyers and purchasers with most effective good quality and aggressive portable digital goods for Temperature Sensor Calibration Equipment, Dual Channel Electric Load Tester, Programmable Electronic Load, We're going to endeavor to maintain our fantastic track record as the very best products supplier in the planet. When you've got any questions or reviews, you should get in touch with with us freely.
Chinese Professional Dc Electronic Load Tester - ET37 Series Programmable DC Power Supply – Zhongchuang Detail:

User-friendly design:

¤ Using 4.3 inch TFT LCD, the resolution is 480*272.

¤ Support waveform display, real-time display of channel output voltage and current curve.

¤ Operating system is simple and convenient, with intuitive interface display system, easy to use.

High performance output:

¤ Independent adjustable output: 1 (ET372X)/2 (ET373X) adjustable output 30V/3A (30V/5A), 1 (2.5V/3.3V/5V)

adjustable fixed output; maximum total output power can reach 305W.

¤ Four output modes: vertical/positive/negative/parallel/series, providing a wider output range. The maximum output

voltage can reach 60V, and the maximum output current can reach 10A.

¤ High precision and high resolution.

¤ Low output ripple and noise.

¤ It has excellent load regulation rate and linear regulation rate.

¤ Support timing output function, maximum set 112 groups.

¤ It has the function of storage and invocation, and can save up to 10 sets of parameter settings.

¤ Standardized USB Device interface, RS232 interface, support SCPI remote command control.

Multiple security protection:

¤ With over-voltage/over-current protection function, it can flexibly set over-voltage and over-current parameters to

achieve effective load protection.

¤ It has two-level over-temperature protection function, realizing double over-temperature protection of software and

hardware.

¤ It has the function of intelligent fan speed control, adjusts the fan speed according to the working conditions, and

effectively reduces the fan noise.

¤ Connecting and Counter-protection with Output Polarity.

¤ It has key lock function to prevent misoperation.

¤ Power voltage: 220V.AC±10%, 110V.AC±10%, 45~65Hz

¤ Display: 4.3” TFT LCD, with a resolution of 480×272, and 16 M colors

¤ Operating temperature: 0°C-40°C

¤ Storage temperature: -10°C-70°C

¤ Relative humidity: ＜80%

¤ Interface: USB DEVICE, RS232 (optional)

¤ Sizes: 230mm x 380mm x 150mm (WxDxH)

¤ Weight: 11kg

¤ Three core power cord: 1

¤ User manual: 1

¤ Output line: 1

¤ USB data line: 1

¤ RS232 data line: 1

Model

ET3721

ET3728

ET3722

ET3729

ET3731

ET3738

ET3732

ET3739

Maximum power

105W( ET3721、3722)

155W(ET3728、3729)

195W(ET3721、3722)

305W(ET3728、3729)

Channel number

2

(CH1 variable, CH2 fixed)

3

(CH1, CH2 variable, CH3 fixed)

DC output

(0°C-40°C)

Voltage/current

(Rated value)

CH1：0~30V，0~3A(ET3721、3722)

CH1：0~30V，0~5A（ET3728、3729）

CH1、CH2：0~30V，0~3A(ET3721、3722)

CH1、CH2：0~30V,0~5A(ET3728、3729)

Over-voltage/over-current

protection

CH1：10mV~33V，10mA~3.3A

CH1：10mV~33V,10mA~5.5A

CH1、CH2：10mV~33V，10mA~3.3A

CH1、CH2：10mV~33V，10mA~5.5A

2.5V/3.3V/5V

Fixed output

 Current output 0~3A(ET3721、3722、3731、3732)，Or 0~1A（ET3728、3729、3738、3739）;Output precision: ＜5%;Load regulation: ≤15*minimum scale interval;Linear regulation: ≤5*minimum scale interval;Ripple and noise (20Hz~7MHz): ≤2mVrms;

Overload: 3A(ET3721、3722、3731、3732)，or 0~1A（ET3728、3729、3738、3739）;

(Parameters of the fixed position are all listed. The parameters below apply to the variable positions of the voltage.)

Linear regulation rate (±output percentage + quantity of minimum scale interval(s))

Voltage

≤0.01%+2

≤0.005%+2

≤0.01%+2

≤0.005%+2

Current

≤0.01%+3

≤0.005%+3

≤0.01%+3

≤0.005%+3

Load regulation rate (±output percentage + quantity of minimum scale interval(s))

Voltage

≤0.01%+2

≤0.006%+2

≤0.01%+2

≤0.006%+2

Current

≤0.005%+3

≤0.01%+3

≤0.05%+3

≤0.01%+3

Tracking operation (±output percentage + quantity of minimum scale interval(s))

Tracking error

/

≤0.5%+10 of Master（no-load）

Parallel regulation

rate

Linear

/

≤0.01%+5

Load

/

≤0.01%+5

Series regulation rate

Linear

/

≤0.01%+10

Load

/

≤0.02%+10

Ripple and noise (20Hz~-7MHz)

Voltage

≤1mVrms

≤600μVrms

≤1mVrms

≤600μVrms

Current

≤1.5mArms

≤1mArms

≤1.5mArms

≤1mArms

Programming/backward reading resolution

Voltage

1mV

1mV

1mV

1mV

Current

1mA

1mA

1mA

1mA

Programming/backward reading accuracy (±output percentage + quantity of minimum scale interval(s))

Programming

Voltage

0.03%+10

0.02%+5

0.03%+10

0.02%+5

Current

0.3%+10

0.3%+5

0.3%+10

0.3%+5

Backward reading

Voltage

0.03% +10

0.03% +5

0.03% +10

0.03% +5

Current

0.3% +10

0.2% +5

0.3% +10

0.2% +5

Load transient response time

It takes less than 50μs 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.

Stability (±output percentage + quantity of minimum scale interval(s))

Voltage

≤0.02%+10

≤0.02%+10

Current

≤0.1%+1

≤0.1%+1

Temperature coefficient (±output percentage + quantity of minimum scale interval(s))

Voltage

≤0.02%+10

≤0.02%+10

Current

≤0.02%+10

≤0.02%+10

Other

Command processing time

＜200ms

Cooling method

Fan cooling

ET37 Series Programmable DC Power Supply 1
ET37 Series Programmable DC Power Supply 2
ET37 Series Programmable DC Power Supply 3

Product detail pictures:

Chinese Professional Dc Electronic Load Tester - ET37 Series Programmable DC Power Supply – Zhongchuang detail pictures

Chinese Professional Dc Electronic Load Tester - ET37 Series Programmable DC Power Supply – Zhongchuang detail pictures

Chinese Professional Dc Electronic Load Tester - ET37 Series Programmable DC Power Supply – Zhongchuang detail pictures

Chinese Professional Dc Electronic Load Tester - ET37 Series Programmable DC Power Supply – Zhongchuang detail pictures

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"Sincerity, Innovation, Rigorousness, and Efficiency" is definitely the persistent conception of our corporation to the long-term to establish alongside one another with customers for mutual reciprocity and mutual profit for Chinese Professional Dc Electronic Load Tester - ET37 Series Programmable DC Power Supply – Zhongchuang , The product will supply to all over the world, such as: Borussia Dortmund, Liberia, Bulgaria, With top quality products, great after-sales service and warranty policy, we win trust from many overseas partner, many good feedbacks witnessed our factory's growth. With full confidence and strength, welcome customers to contact and visit us for future relationship.
    • We have been looking for a professional and responsible supplier, and now we find it.
    5 Stars By Dolores from Croatia - 2018.06.12 16:22
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