Prodigit 33501 Series User manual

33501 Series
High power
Electronic Load
Operation manual
S/N:90033503 REV:G

Material Contents Declaration
(材料含量宣称)
Hazardous Substance (有毒有害物质或元素)
(Part Name)
零件名称 铅
(Pb) 汞 (Hg) 镉 (Cd) 六价铬 (Cr6+)
多溴
联苯
(PBB)
多溴
二苯醚
(PBDE)
PCBA
(印刷电路装配件)X O X O O O
Electrical part not on PCBA’s
未在PCBA上的电子零件 X OX O O O
Metal parts
金属零件 O O O X O O
Plastic parts
塑料零件 O O O O X X
Wiring
电线 X O O O O O
Package
封装 X O O O O O
对销售之日的所售产品,本表显示, PRODIGIT 供应链的电子信息产品可能包含这些物质。注意:在所售产品中可能
会也可能不会含有所有所列的部件。This table shows where these substances may be found in the supply chain
of Prodigit electronic information products, as of the date of sale of the enclosed product. Note that some of the
component types listed above may or may not be a part of the enclosed product. ○：表示该有毒有害物质在该部
件所有均质材料中的含量均在SJ/T 11363-2006 标准规定的限量要求以下。○：Indicates that the concentration of
the hazardous substance in all homogeneous materials in the parts is below the relevant threshold of the SJ/T
113632006 standard. ×：表示该有毒有害物质至少在该部件的某一均质材料中的含量超出SJ/T 11363-2006 标准
规定的限量要求。×：Indicates that the concentration of the hazardous substance of at least one of all
homogeneous materials in the parts is above the relevant threshold of the SJ/T 11363-2006 standard.
Note(注释):
1.Prodigit has not fully transitioned to lead-free solder assembly at this moment；However, most of the
components used are RoHS compliant.
(此刻，Prodigit 并非完全过渡到无铅焊料组装；但是大部份的元器件一至于RoHS的规定。)
2. The product is labeled with an environment-friendly usage period in years.
The marked period is assumed under the operating environment specified in the product specifications.
(产品标注了环境友好的使用期限制(年)。所标注的环境使用期限假定是在此产品定义的使用环境之下。)
Example of a marking for a 10 year period:
(例如此标制环境使用期限为10年)

VERIFICATION of conformity with CE Directives Verification No: ACT201078CE
SAFETY SYMBOLS
Direct current (DC)
Alternating current (AC)
Both direct and alternating
Three-phase alternating current
Off (Supply)
On (Supply)
Protective earth (ground)
Caution！Refer to this manual before using the meter.
Caution, risk of electric shock
CAT IV – Is for measurements performed at the source of the low-voltage installation.
CAT III – Is for measurements performed in the building installation.
CAT II – Is for measurements performed on circuits directly connected to the low-voltage
installation.
CAT I – Is for measurements performed on circuits not directly connected to Mains.
This equipment is not for measurements performed for CAT II, III, and IV.
Fuse

Approved by:
Vincent Tan
Acts Certification and Testing Services
2008/5/6
Document holder:
Prodigit Electronics Co., Ltd.
Type of product:
DC Electronic Loads
Type designation:
33501, 33511, 33521, 33531, 33541, 33512,33513,33514,33515,33532,33533
Technical data:
115/230 Vac, 50 / 60 Hz, 300 W,
Class I
A sample of the product has been assessed with respect to CE-marking according to the Low Voltage
Directive (73/23/EEC & 93/68/EEC) and EMC Directive (89/336/EEC, 92/31/EEC, & 93/68/EEC) and
Found to comply with the essential requirements of the Directives.The Standard(s) used for showing
the compliance and the full details of the results are given in the Test Reports as detailed below:
Standard(s) Report No. Report Issued Date
IEC/EN 61010-1: 2001 ACT201078 December 14, 2005
EN 61326+A1+A2+A3, EN 55011+A1+A2, EN 61000-3-2,
EN 61000-3-3+A1, EN 61000-4-2+A1+A2, EN 61000-4-3+A1,
EN61000-4-4+A1+A2, EN61000-4-5+A1, EN 61000-4-6+A1,
EN 61000-4-8+A1, EN 61000-4-11
E940757 November 23,2005
The holder of the verification is authorized to use this verification in connection with the EC
declaration Of conformity according to the Directives. The CE marking may only be used if all
releveant and effective EC Directives are complied with. Together with the manufacturer＇s own
documented production control,The manufacturer (or his European authorized representative) can in
his EC Declaration of Conformity Verify compliance with the directives.

33501Series High Power Electronic load operation manual
Table of Contents
CHAPTER 1 INTRODUCTION............................................................................................................1-1
1-1. GENERAL DESCRIPTION...............................................................................................................1-1
1-2. FEATURES ..................................................................................................................................1-9
1-3. ACCESSORIES ............................................................................................................................1-9
1-4. OPTION.......................................................................................................................................1-9
1-5. SPECIFICATIONS .........................................................................................................................1-9
CHAPTER 2 INSTALLATION .............................................................................................................2-1
2-1. INSPECTION ................................................................................................................................2-1
2-2. CHECK LINE VOLTAGE.................................................................................................................2-1
2-3. GROUNDING REQUIREMENTS.......................................................................................................2-2
2-4. ADJUST THE FEET.......................................................................................................................2-2
2-5. RACK MOUNT..............................................................................................................................2-2
2-6. ENVIRONMENTAL REQUIREMENTS................................................................................................2-2
2-7. REPAIR.......................................................................................................................................2-2
2-8. GPIB CONNECTION.....................................................................................................................2-3
2-8. GPIB CONNECTION.....................................................................................................................2-3
2-9. RS-232C CONNECTION...............................................................................................................2-4
2-10.REMOTE CONTROL PORT ...........................................................................................................2-4
2-11 ANALOG PROGRAMMING BNC INPUT .......................................................................................2-5
2-12 POWER ON STATUS..................................................................................................................2-5
2-13 STORE /RECALL OPERATION ...............................................................................................2-5
2-14 AUTO SEQUENCE TESTING FUNCTION DESCRIPTION..............................................................2-7
2-15. LOAD CURRENT SLEW RATE SETTING.......................................................................................2-10
CHAPTER 3 OPERATION ..................................................................................................................3-1
3-1. FRONT PANEL DESCRIPTION AND 3-1-1 33501 EXTERNAL DIAGRAM ............................................3-1
3-2. INITIAL SETTING OF 33501 SERIES LOAD MODULE ......................................................................3-12
3-3 INPUT TERMINAL AND WIRE CONSIDERATION ...............................................................................3-17
3-4. LOAD CURRENT COURSE/FINE INCREASE/DECREASE ADJUSTMENT KNOB....................................3-18
3-5. I-MONITOR ................................................................................................................................3-22
3-6. PROTECTION FEATURES............................................................................................................3-23
CHAPTER 4 GPIB/RS-232 PROGRAMMING OPERATION..............................................................4-1
4-1. INTRODUCTION............................................................................................................................4-1
4-2. THE SUMMARY OF RS-232 INTERFACE AND COMMAND.................................................................4-1
4-3. GPIB/RS-232 COMMAND LIST................................................................................................4-2
4-4. THE DESCRIPTION OF ABBREVIATION...........................................................................................4-4
4-5. GPIB COMMAND DESCRIPTION ....................................................................................................4-5
CHAPTER 5 APPLICATIONS.............................................................................................................5-1
5-1. LOCAL SENSE CONNECTIONS.......................................................................................................5-1
5-2. REMOTE SENSE CONNECTIONS....................................................................................................5-2
5-3. CONSTANT CURRENT MODE APPLICATION....................................................................................5-3
5-4. CONSTANT VOLTAGE MODE APPLICATION....................................................................................5-5
5-5. CONSTANT RESISTANCE MODE APPLICATION...............................................................................5-6
5-6. CONSTANT CURRENT SOURCE OPERATION...................................................................................5-7
5-7. ZERO-VOLT LOADING APPLICATION .............................................................................................5-7

FIGURES
Fig 1-1.1 33501 0-60V / 0-240A 2400W Power Contour ....................................................1-1
Fig 1-1.2 33511 0-60V / 0-240A 3600W Power Contour ....................................................1-1
Fig 1-1.3 33521 0-60V / 0-480A 2400W Power Contour ....................................................1-2
Fig 1-1.5 33541 0-60V / 0-720A 3600W Power Contour ....................................................1-2
Fig 1-1.6 33512 0-60V / 0-360A 5400W Power Contour ....................................................1-3
Fig 1-1.7 33513 0-60V / 0-480A 7200W Power Contour ....................................................1-3
Fig 1-1.8 33514 0-60V / 0-600A 9000W Power Contour ....................................................1-4
Fig 1-1.9 33515 0-60V / 0-720A 10800W Power Contour ..................................................1-4
Fig 1-1.10 33532 0-60V / 0-720A 5400W Power Contour ..................................................1-5
Fig 1-1.11 33533 0-60V / 0-960A 7200W Power Contour ..................................................1-5
Fig 1-2 Constant Current mode..........................................................................................1-6
Fig 1-3 Constant Resistance mode....................................................................................1-6
Fig 1-4 Constant Voltage mode..........................................................................................1-6
Fig 1-5 Constant Power mode............................................................................................1-7
Fig 1-6 Dynamic Wave form................................................................................................1-7
Fig 1-7 Rise Time Transition Limitation ............................................................................1-8
Fig 1-8 Block Diagram of 33501 Series Electronic Load................................................1-13
Fig 2-1 SET OF SWITCH......................................................................................................2-1
Fig 2-2 AC LINE RECEPTACLE ..........................................................................................2-1
Fig 2-3 33501 FRONT/REAR PANEL ..................................................................................2-3
Fig 2-4 33501 Series High Power Load Rear panel...........................................................2-4
Fig 2-5 Diagram of Remote Control Port...........................................................................2-4
Fig 2-6 Analog programming load current in CC mode operation..................................2-5
Fig 2-7 front panel key switch ............................................................................................2-5
Fig 2-8 AUTO SEQ function operation flow chart.............................................................2-7
Fig 2-9 STORE (EDIT) MODE OPERATIONO FLOW-CHART............................................2-8
Fig 2-10 TEST MODE OPERATION FLOW-CHA................................................................2-9
Fig 2-11 The relationship of load current load ON/OFF, load level and output voltage of
DC power supply at turn ON .....................................................................................2-10
Fig 3-1 33501-Series High Power Front Panel ..................................................................3-1
Fig 3-2 33501 Series High Power electronic load.............................................................3-2
Fig 3-3 Remote sense connection on front panel(when current ≦60A)......................3-11
Fig 3-4 Remote sense connection on rear panel(When current >60A).........................3-11
Fig 4-1 RS-232 INTERFACE DIAGRAM..............................................................................4-1
Fig 5-1 Local voltage sense connections..........................................................................5-1
Fig 5-2 Remote voltage sense connections......................................................................5-2
Fig 5-3 constant mode application ....................................................................................5-3
Fig 5-4 Dynamic load current with independent programmed Rise/Fall slew rate........5-4
Fig 5-5 Constant Voltage mode application......................................................................5-5
Fig 5-6 Constant Resistance mode Application ...............................................................5-6
Fig 5-7 Constant current source connection....................................................................5-7
Fig 5-8 Zero-Volt loading connection ................................................................................5-7

Tables
Table 1-1 AC INPUT Specifications....................................................................................1-9
Table 3-1 33501 initialize...................................................................................................3-12
Table 3-2 33511 initialize...................................................................................................3-12
Table 3-3 33521 initialize...................................................................................................3-13
Table 3-4 33531 initialize...................................................................................................3-13
Table 3-5 33541 initialize...................................................................................................3-14
Table 3-6 33512 initialize...................................................................................................3-14
Table 3-7 33513 initialize...................................................................................................3-15
Table 3-8 33514 initialize...................................................................................................3-15
Table 3-9 33515 initialize...................................................................................................3-16
Table 3-10 33532 initialize.................................................................................................3-16
Table 3-11 33533 initialize.................................................................................................3-16
Table 3-12 the resolution of range I/II vs. Course/Fine load setting Key......................3-21
Table 4-1 GPIB/RS-232 SETTING COMMAND SUMMARY................................................4-2
Table 4-2 GPIB/RS-232 QUERY COMMAND SUMMARY...................................................4-3
Table 4-3 GPIB command terminator.................................................................................4-4
Table 4-4 PROT status byte register................................................................................4-14

33501 Series Operation Manual 1-1
Chapter 1 Introduction
1-1. General description
The 33501 Series Electronic Load is designed to test, evaluation and burn-in of DC power
supplies and batteries. The 335011 Series electronic load can be operated for manual and
GPIB operation. The power contour of 33501 1800 Watts Electronic Load is shown in Fig 1-
1.1~1-1.5, it has an input from 0-360A, and 0 -60V current and voltage operating range
respectively. The power contour of 33501 series. The prodigit 33501 Series high power
electronic Load can be controlled locally at the front panel or remotely via computer over the
GPIB/RS-232C. Current (CC) mode, Constant Resistance (CR) mode, and Constant Voltage
(CV) mode. and Constant Power ( CP ) mode. The wide range dynamic load with
independent rise and fall current slew rate and analog programming input with arbitrary
wave-form input is available in Constant Current mode.
Fig 1-1.1 33501 0-60V / 0-240A 2400W Power Contour
Fig 1-1.2 33511 0-60V / 0-240A 3600W Power Contour
3600W CONTOUR
240 A60 90 120 180
60
40
30
0.4
Current
0.1
15
0.2
0
0.3
Voltage
2400W CONTOUR
240 A
40 120 160
60
20
15
0.6
Current
0.1
10
0.3
0
0.4
Voltage

1-2 PRODIGIT
Fig 1-1.3 33521 0-60V / 0-480A 2400W Power Contour
Fig 1-1.4 33531 0-60V / 0-480A 3600W Power Contour
Fig 1-1.5 33541 0-60V / 0-720A 3600W Power Contour
3600W CONTOUR
720 A
60 90 102.85 360 480
60
40
10
0.7
Current
0.1
5
0.35
0
Voltage
0.46
3600W CONTOUR
480 A
60 80 90 240 360
60
40
15
0.6
Current
0.1
7.5
0.3
0
Voltage
2400W CONTOUR
480 A
40 68.57 120 240
60
20
10
0.7
Current
0.1
5
0
0.35
Voltage
0.175
0.45

33501 Series Operation Manual 1-3
Fig 1-1.6 33512 0-60V / 0-360A 5400W Power Contour
Fig 1-1.7 33513 0-60V / 0-480A 7200W Power Contour
5400W CONTOUR
360 A
90 135 180 270
60
40
30
0.4
Current
0.1
15
0.3
0
0.2
Volta
g
e
7200W CONTOUR
480 A
120 180 240 360
60
40
30
0.4
Current
0.1
15
0.3
0
0.2
Volta
g
e

1-4 PRODIGIT
Fig 1-1.8 33514 0-60V / 0-600A 9000W Power Contour
Fig 1-1.9 33515 0-60V / 0-720A 10800W Power Contour
10800W CONTOUR
720 A
180 270 360 540
60
40
30
0.4
Current
0.1
15
0.3
0
0.2
Voltage
9000W CONTOUR
600 A
150 225 300 450
60
40
30
0.4
Current
0.1
15
0.3
0
0.2
Volta
g
e

33501 Series Operation Manual 1-5
Fig 1-1.10 33532 0-60V / 0-720A 5400W Power Contour
Fig 1-1.11 33533 0-60V / 0-960A 7200W Power Contour
CC Mode:
With the operating mode of constant current, the 33501 Series Electronic load will sink a
current in accordance with the programmed value regardless of the input voltage (see Fig.1-
2).
7200W CONTOUR
960 A
120 156 240 480 720
60
30
15
0.6
Current
0.1
7.5
0.45
0
0.3
Voltage
5400W CONTOUR
720 A
90 120 180 360 540
60
30
15
0.6
Current
0.1
7.5
0.45
0
0.3
Voltage

1-6 PRODIGIT
I
V
CC
LOAD
CURRENT
CURRENT SETTING
INPUT VOLTAGE
Fig 1-2 Constant Current mode
CR Mode:
At constant resistance mode, The 33501 Series Electronic Load will sink a current linearly
proportional to the load input voltage in accordance with the programmed resistance setting
(see Fig 1-3).
I
V
LOAD
CURRENT
INPUT VOLTAGE
RESISTANCE
SETTING
Fig 1-3 Constant Resistance mode
CV Mode:
At constant voltage mode, the 33501 Series Electronic Load will attempt to sink enough
current until the load input voltage is equaled to the programmed value (see Fig 1-4).
I
V
LOAD
CURRENT
INPUT VOLTAGE
VOLTAGE
SETTING
Fig 1-4 Constant Voltage mode

33501 Series Operation Manual 1-7
CP Mode:
At Constant Power mode, the 33501 Series Electronic Load will attempt to sink load power
(load voltage x load current) in accordance with the programmed power. (See Fig 1-5).
V
0
I
P O W E R
S E T T I N G
Fig 1-5 Constant Power mode
Dynamic wave form definition:
There are six parameters to generate dynamic wave form or pulse wave form, the 33501
Series Electronic Load will sink current from power source proportional to the dynamic wave
form, the dynamic wave form definition is shown in Fig 1-6. The period of dynamic wave form
is Thigh + Tlow, dynamic frequency = 1 / (Thigh + Tlow), the Duty cycle = Thigh / (Thigh +
Tlow)
I
V
LOAD
CURRENT
RISE
SLEW RATE
HIGH LOAD
LOAD
LOW LOAD
LEVEL
THIGH TLOW
FALL SLEW RATE
Fig 1-6 Dynamic Wave form
The load current level and load status are can be set with Front panel on each module, GPIB
command. It is called manual operation and GPIB operation respectively, the load input
voltage and load current can be read back to computer through GPIB.
The GPIB operation is described in Chapter 4 GPIB operation.

1-8 PRODIGIT
Slew Rate:
Slew rate is defined as the change in current or voltage over time. A programmable slew rate
allows a controlled transition from one load setting to another to minimize induced voltage
drops on inductive power wiring, or to control induced transients on a test device (such as
would occur during power supply transient response testing).
In cases where the transition from one setting to another is large, the actual transition time can
be Calculated by dividing the voltage or current transition by the slew rate. 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. In cases where the transition from one setting to
another is small, the small Signal bandwidth of the load limits the minimum transition time for
all programmable slew rates. Because Of this limitation, the actual transition time is longer
than the expected time based on the slew rate, as
Shown in Figure 1-7
Fig 1-7 Rise Time Transition Limitation

33501 Series Operation Manual 1-9
1-2. Features
1-2-1 CC, CR, CV, CP, Dynamic, and Short Operating Mode.
1-2-2 Fully GPIB control of Load condition setting and meter read back.
1-2-3 Dual high accuracy & resolution 4 1/2 digit voltage and current meter.
1-2-4 Built-in pulse generator includes wide Thigh/Tlow dynamic load range, independent
Rise/Fall load current slew rate control, and High/Low Load level.
1-2-5 Controllable load current slew rate of load level change, load ON/OFF switch
change, and power supply turn ON.
1-2-6 Short circuit current measurement capability, low short resistance and reliable
short circuitry is implemented by turn ON Power MOSFET and heavy duty relay.
1-2-7 Automatic voltage sense capability.
1-2-8 Full protection from over power, over temperature, over voltage, and reverse
polarity.
1-2-9 Isolated Imonitor BNC output, 10V full scale.
1-2-10 Up to 150 Sets Store/Recall EEROM memory
1-2-11 Analog programming input capability at rear panel.
1-2-12 Digital Calibration
1-3. Accessories
1-3-1 6mm Binding Post Plug (Black) 1PC
6mm Binding Post Plug (Red) 1PC
1-3-2 4mm Binding Post Plug (Black) 1PC
4mm Binding Post Plug (Red) 1PC
1-3-3 SPADE Type Large size terminal (Yellow) 2PCS
SPADE Type Small size terminal (Red) 2PCs
1-3-4 Hexagon sleeve (5mm) 1PC
Hexagon sleeve (3mm) 1PC
1-3-5 33501 series operation manual 1PC
1-3-6 M6ROUNDSCREW 2PCS
1-4. Option
1-4-1 IEEE-488 cable (1 Meter)
1-4-2 IEEE-488 cable (2 Meter)
1-4-3 9931 Remote Controller
1-4-4 D-sub-9Pin to D-sub-9Pin cable (1M) for 9931.
1-5. Specifications
LINE 115V ±10﹪230V ±10﹪
FREQUENCY 50/60 Hz
FUSE 2A/250V(5×20 mm) 1A/250V(5×20 mm)
AC INPUT
MAX. POWER
CONSUMPTION 150 W×2
DIMENSIONS (W * H * D) 483 mm ×365 mm ×445Dmm/EA
WEIGHT NET:2400W→38.8Kgs、3600W→47.2Kgs
Table 1-1 AC INPUT Specifications

1-10 PRODIGIT
Model 33501 33511 33521 33531 33541
INPUT RATINGS
Power (Watt)
Current (Ampere)
Voltage (Volt)
2400 W
240 A
60 V
3600W
240 A
60 V
2400W
480 A
60 V
3600W
480 A
60 V
3600 W
720A
60 V
PROTECTIONS
OPP
OCP
OVP
OTP
2520W
252A
63V
85℃
3780W
252A
63V
85℃
2520W
504A
63V
85℃
3780W
504A
63V
85℃
3780W
756A
63V
85℃
0~24/240A
6.4mA /64mA
0~24/240A
6.4mA /64mA
0~48/480A
12.8mA /128mA
0~48/480A
12.8mA /128mA
0~72/720A
19.2mA /192mA
CC MODE
RANGE
RESOLUTION
ACCURACY ±0.2% OF (SETTING + RANGE)
0.0134~0.25~937.5
Ω
0.067mΩ/1.066ms
0.0134~0.25~937.5
Ω
0.067mΩ/1.066ms
0.0066~0.125~468.
7Ω
0.033mΩ/2.133ms
0.0066~0.125~468.
7Ω
0.033mΩ/2.133ms
0.0044~0.083~312.
5Ω
0.022mΩ/3.2ms
CR MODE
RANGE
RESOLUTION
ACCURACY ±0.2% OF (SETTING + RANGE)
0~60V
0.016V
0~60V
0.016V
0~60V
0.016V
0~60V
0.016V
0~60V
0.016V
CV MODE
RANGE
RESOLUTION
ACCURACY ±0.1% OF (SETTING + RANGE)
0~2400W
0.64W
0~3600W
0.96W
0~2400W
0.64W
0~3600W
0.96W
0~3600W
0.96W
CP MODE
RANGE
RESOLUTION
ACCURACY ±0.5% OF (SETTING + RANGE)
15.00/60.00V
0.5mV/ 2mV
15.00/60.00V
0.5mV/2mV
15.00/60.00V
0.5mV/2mV
15.00/60.00V
0.5mV/2mV
15.00/60.00V
0.5mV/2mV
4 1/2 DVM
RANGE
RESOLUTION
ACCURACY ±0.05% OF(READING + RANGE)
24/240A
0.8mA /8mA
24/240A
0.8mA /8mA
48/480A
1.6mA /16mA
48/480A
1.6mA /16mA
72/720A
2.4mA /24mA
4 1/2 DAM
RANGE
RESOLUTION
ACCURACY ±0.5% OF (READING + RANGE)
50us to 9.999Sec
16mA~1000mA/us
160mA~10000mA/u
s
16mA~1000mA/us
160mA~10000mA/u
s
32mA~2000mA/us
320mA~20000mA/u
s
32mA~2000mA/us
320mA~20000mA/u
s
48mA~3000mA/us
480mA~30000mA/u
s
Dynamic
Operation
THIGH/TLOW
SLEW-RATE
ACCURACY ±10% ±10us
Load ON Voltage
Load OFF Voltage
0.1-25V
0-25V
0.1-25V
0-25V
0.1-25V
0-25V
0.1-25V
0-25V
0.1-25V
0-25V
Imonitor (Isolated) 24A/V 24A/V 48A/V 48A/V 72A/V
Maximum
Short Resistance 0.0025Ω 0.0017Ω 0.0015Ω 0.0013Ω 0.001Ω

33501 Series Operation Manual 1-11
Model 33512 33513 33514 33515 33532
INPUT RATINGS
Power (Watt)
Current (Ampere)
Voltage (Volt)
5400 W
360 A
60 V
7200W
480 A
60 V
9000W
600 A
60 V
10800W
720 A
60 V
5400 W
720A
60 V
PROTECTIONS
OPP
OCP
OVP
OTP
5670W
378A
63V
85℃
7560W
504A
63V
85℃
9450W
630A
63V
85℃
11340W
756A
63V
85℃
5670W
756A
63V
85℃
0~36/360A
9.6mA /96mA
0~48/480A
12.8mA /128mA
0~60/600A
16mA /160mA
0~72/720A
19.2mA /192mA
0~72/72019.2
mA /192mA
CC MODE
RANGE
RESOLUTION
ACCURACY ±0.2% OF (SETTING + RANGE)
0.0088~0.1666~625Ω
0.044mΩ/1.6ms
0.0066~0.125~468.7Ω
0.033mΩ/2.133ms
0.0052~0.1~375Ω
0.026mΩ/2.66ms
0.0044~0.0833~312.3
Ω
0.022mΩ/3.201ms
0.0044~0.083~312.3Ω
0.022mΩ/3.201ms
CR MODE
RANGE
RESOLUTION
ACCURACY ±0.2% OF (SETTING + RANGE)
0~60V
0.016V
0~60V
0.016V
0~60V
0.016V
0~60V
0.016V
0~60V
0.016V
CV MODE
RANGE
RESOLUTION
ACCURACY
±0.1% OF (SETTING + RANGE)
0~5400W
1.44W
0~7200W
1.92W
0~9000W
2.4W
0~10800W
2.88W
0~5400W
1.44W
CP MODE
RANGE
RESOLUTION
ACCURACY ±0.5% OF (SETTING + RANGE)
15.00/60.00V
0.5mV/ 2mVV
15.00/60.00V
0.5mV/2mV
15.00/60.00V
0.5mV/2mV
15.00/60.00V
0.5mV/2mV
15.00/60.00V
0.5mV/0.2mV
4 1/2 DVM
RANGE
RESOLUTION
ACCURACY ±0.05% OF(READING + RANGE)
36/360A
1.2mA /12mA
48/480A
1.6mA /16mA
60/600A
2mA /20mA
72/720A
2.4mA /24mA
72/720A
2.4mA /24mA
4 1/2 DAM
RANGE
RESOLUTION
ACCURACY ±0.5% OF (READING + RANGE)
50us to 9.999Sec
24mA~1500mA
/us
240mA~15000m
A/us
32mA~2000m
A/us
320mA~20000m
A/us
40mA~2500m
A/us
400mA~25000m
A/us
48mA~3000m
A/us
480mA~30000m
A/us
48mA~3000m
A/us
480mA~30000m
A/us
Dynamic
Operation
THIGH/TLOW
SLEW-RATE
ACCURACY ±10% ±10us
Load ON Voltage
Load OFF Voltage
0.1-25V
0-25V
0.1-25V
0-25V
0.1-25V
0-25V
0.1-25V
0-25V
0.1-25V
0-25V
Imonitor (Isolated) 36A/V 48A/V 60A/V 72A/V 72A/V
Maximum
Short Resistance 0.002Ω 0.0015Ω 0.0012Ω 0.001Ω 0.001Ω

1-12 PRODIGIT
Model 33533
INPUT RATINGS
Power(Watt)
Current(Ampere)
Voltage(Volt)
7200 W
960 A
60 V
PROTECTIONS
Over Power Protection(OPP)
Over Current Protection(OCP)
Over Voltage Protection(OVP)
Over Temp. Protection(OTP)
≒7560W
≒1008A
≒63V
≒85℃
0～96/960 A
25.6mA/256mA
CC MODE RANGE
RESOLUTION
ACCURACY ±0.2% OF (SETTING + RANGE)
0.0032Ω～0.0625Ω～234.3Ω
0.016mΩ/4.266mS
CR MODE RANGE
RESOLUTION
ACCURACY ±0.2% OF (SETTING + RANGE)
0～60V
0.016V
CV MODE RANGE
RESOLUTION
ACCURACY
±0.1% OF (SETTING + RANGE)
0～7200W
1.92W
CP MODE RANGE
RESOLUTION
ACCURACY
±0.5% OF (SETTING + RANGE)
0 ～15.000/60.00V
0.5mV/2mV
4 1/2 DVM RANGE
RESOLUTION
ACCURACY ±0.05% OF(READING RANGE)
0～96.00/960.0A
3.2mA/32mA
4 1/2 DAM RANGE
RESOLUTION
ACCURACY ±0.2% OF (READING + RANGE)
THIGH/TLOW 50uS to 9.999 Sec
SLEW-RATE 64mA ～4000mA/uS 640mA ～40000mA/uS
Dynamic
Operation
ACCURACY ±10% ±10uS
Load ON Voltage 0.1-25V, 1% of (Setting + Range)
Load OFF Voltage 0-25V, 0.05% of (Setting +Range)
Imonitor (Isolated) 96A/V
Maximum Short Resistance 1.05mΩ
Table 1-2 33501-Series Specifications

33501 Series Operation Manual 1-13
1-6. Block diagram
The functional block diagram of 33501 Series Electronic Load is illustrated in Fig 1-8.
Fig 1-8 Block Diagram of 33501 Series Electronic Load