New Arrival China Dc Electric Load Tester - ET37 Series Programmable DC Power Supply – Zhongchuang
New Arrival China Dc Electric 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 |
|||||
Product detail pictures:
Related Product Guide:
Our products are broadly identified and trustworthy by people and may meet continually modifying financial and social requires of New Arrival China Dc Electric Load Tester - ET37 Series Programmable DC Power Supply – Zhongchuang , The product will supply to all over the world, such as: New Zealand, Naples, panama, With the development and enlargement of mass clients abroad, now we have set up cooperative relationships with many major brands. We have our own factory and also have many reliable and well-cooperated factories in the field. Adhering to the "quality first, customer first, We are provideing high-quality, low-cost products and first-class service to customers. We sincerely hope to establish business relationship with customers from all over the world on the basis of quality, mutually benefit. We welcome OEM projects and designs.
By Samantha from Swiss - 2018.02.04 14:13
Product variety is complete, good quality and inexpensive, the delivery is fast and transport is security, very good, we are happy to cooperate with a reputable company!
By Christina from Dubai - 2018.07.26 16:51
