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home > 판매리스트 > Array > 372XA Electronic Load
 



3720A and 3721A Electronic Loads provide an adaptable, and functional asset wherever power sources need to be tested.These units are designed to provide high reliability, great performance, and ease of operation with multiple functionality.

  • 4 basic functions: CC, CV, CR, and CP ; and 8 basic test modes: CCL, CCH, CV, CRL, CRM, CRH, CPV, CPC
  • High-speedsequence, high-speed transient, short-circuit, battery discharge and other auxiliary functions
  • Minimum operating voltage is less than 0.6V at the load's full rated current
  • Optional zero-voltage test accessories are available  
  • Programmable current slew rate  
  • Perfect protection assures high reliability in the most complicated of test environments
  • Multiple groups of parameters and lists can be saved and recalled  
  • Ruggedized structure, exquisite user-friendly design and convenient operation  
  • Supports SCPI (Standard Commands for Programmable Instrumentation) and Labview, and provides necessary PC software

Model

3720A

3721A

Input Ratings

Current

0~30A

0~40A

Voltage

0~80V

0~80V

Power*1

250W at 40℃

400W at 40℃

Input Characteristics

Input Characteriistiics

Min. Operation Voltage
@Full Scale Current

0.6V

0.6V

Constant Current Mode

Low Range

0~3A

0~4A

Resolution

0.1mA

0.1mA

Accuracy

0.1% + 5mA

0.1% + 5mA

High Range

0~40A

0~40A

Resolution

1mA

1mA

Accuracy

0.1% + 10mA

0.1% + 10mA

Constant Voltage Mode

Range

0~80V

0~80V

Resolution

1mV

1mV

Accuracy

0.1% + 10mV

0.1% + 10mV

Constant Resistance Mode

Low Range

0.02~2Ω

0.02~2Ω

Resolution

0.1mΩ

0.1mΩ

Accuracy @I>4A

0.5% + 12mΩ

0.5% + 12mΩ

Middle Range

2~200Ω

2~200Ω

Resolution

8.6uS*2

8.6uS

Accuracy @V>8V

0.3% + 1.25mS

0.3% + 1.25mS

High Range

20~2000Ω

20~2000Ω

Resolution

0.96uS

0.96uS

Accuracy @V>8V

0.3% + 0.625mS

0.3% + 0.625mS

Constant Power Mode

Range

0~250W

0~400W

Resolution @P<100W

1mW

1mW

@P≥100W

10mW

10mW

Accuracy

0.2% + 600mW

0.2% + 600mW

Current Measurement

Low Range

0~4A

0~4A

Resolution

0.1mA

0.1mA

Accuracy

0.05% + 4mA

0.05% + 4mA

High Range

0~40A

0~40A

Resolution

1mA

1mA

Accuracy

0.05% + 8mA

0.05% + 8mA

Voltage Measurement

Range

0~80V

0~80V

Resolution

1mV

1mV

Accuracy

0.1% + 8mV

0.1% + 8mV

Power Measurement

Range

0~250W

0~400W

Resolution @P<1000W

1mV

1mV

@P≥1000W

10mV

10mV

Accuracy

0.1% + 600mV

0.1% + 600mV

Current Slew Rates

RangeCCH

1mA/us~4A/us

1mA/us~4A/us

CCL*3

100uA/us~400mA/us

100uA/us~400mA/us

Resolution

1mA/us

1mA/us

Accuracy*4

3% + 10us

3% + 10us

Transient Operation

Transient Mode

Continuous, Pulse, Toggled

Continuous, Pulse, Toggled

Frequency Range*5

0.38Hz~50kHz

0.38Hz~50kHz

High/Low Time

0~655.35ms

0~655.35ms

Resolution

10us

10us

Accuracy

0.2% + 10us

0.2% + 10us

Riising/Falling Time

10us~655.35

10us~655.35

Resolution

10us

10us

Accuracy

0.2@ + 10us

0.2@ + 10us

List Characteristics

Step Time

10us~100000s

10us~100000s

Resolution

10us

10us

Accuracy

0.2% + 10us

0.2% + 10us

Number of Steps

1~50

1~50

Cycle

1~65535

1~65535

Store Cpacity

7 lists

7 lists

Expanded Functions

Chain

Chain

Battery Discharge

Discharge Time

1s~100h

1s~100h

Resolution

1s

1s

Accuracy

0.2% + 1s

0.2% + 1s

Battery Capacity

1mAh~3000Ah

1mAh~3000Ah

Resolution

1mAh

1mAh

Accuracy

0.3% + 0.01Ah

0.3% + 0.01Ah

Short Circuit

CCL Mode

3.3A

4.4A

CCH Mode

33A

44A

CV Mode

0V

0V

CRL Mode

0.018Ω

0.018Ω

CRM Mode

1.8Ω

1.8Ω

CRH Mode

18Ω

18Ω

CPV Mode

270W

420W

CPC Mode

0W

0W

Maximum Slew Rate

Current

3A/us

4A/us

Voltage

0.6V/us

0.6V/us

Programmable open Circuit

≥20kΩ

≥20kΩ

Trigger Input

Trigger Level

TTL falling edge

TTL falling edge

Tirgger Pulse Width

≥10us

≥10us

Maximum Input Levels

Current

33A

44A

Voltage

84V

84V

Protection Features

OV, OC, OP, OT, RV

OV, OC, OP, OT, RV

Reverse Current Capacity

Input OFF

25A

30A

Input ON

40A

50A

Ripple and Noise

Current(rms/p-p)

3mA/30mA

3mA/30mA

Voltage(rms)

5mV

5mV

Environmental Conditions

Temperature

0~50℃

0~50℃

Relative Humidity

≤85%

≤85%

Remote Interface*6

RS232, GPIB, USB(예정)

RS232, GPIB, USB(예정)

Programming Language

SCPI

SCPI

AC Input

Voltage

AC110V or AC220V±15%

AC110V or AC220V±15%

Frequency

48 to 63Hz

48 to 63Hz

*1 Maximum continuous power available is derated linearly from 100% of maximum at 40ºC, to 75% of maximum at 50 ºC.
*2 Conductance (S) = 1 / Resistance (Ω). The siemens is the SI derived unit of conductance, and the symbol is "S".
*3 The set level is 10 times larger than the slew rate in CCL mode.
*4 The actual transition time is defined as the time required for the input to change from 10% to 90% or from 90% to 10% of the programmed excursion.
*5 Transient frequency depends on the time for high/low level and rising/falling edge.
*6. Full remote control via RS232 with optional GPIB and USB(예정).

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