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Safety Summary
A WARNING statement calls attention to an operating procedure,
practice, or condition, which, if not followed correctly, could result in
injury or death to personnel.
A CAUTION statement calls attention to an operating procedure,
practice, or condition, which, if not followed correctly, could result in
damage to or destruction of parts or the entire product.
The following safety precautions apply to both operating and
maintenance personnel and must be followed during all phases of
operation, service, and repair of this instrument.
WARNING
Before applying power to this instrument:
• Read and understand the safety and operational information
in this manual.
• Apply all the listed safety precautions.
• Verify that the voltage selector at the line power cord input is
set to the correct line voltage. Operating the instrument at
an incorrect line voltage will void the warranty.
• Make all connections to the instrument before applying
power.
• Do not operate the instrument in ways not specified by this
manual or by Global Specialties.
Electrical Power
This instrument is intended to be powered from a CATEGORY II
mains power environment. The mains power should be 120 V RMS
or 240 V RMS. Use only the power cord supplied with the instrument
and ensure it is appropriate for your country of use.
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Ground the Instrument
WARNING
To minimize shock hazard, the instrument chassis and cabinet must
be connected to an electrical safety ground. This instrument is
grounded through the ground conductor of the supplied, threeconductor AC line power cable. The power cable must be plugged
into an approved three-conductor electrical outlet. The power jack
and mating plug of the power cable meet IEC safety standards.
WARNING
Do not alter or defeat the ground connection. Without the safety
ground connection, all accessible conductive parts (including control
knobs) may provide an electric shock. Failure to use a properlygrounded approved outlet and the recommended three-conductor
AC line power cable may result in injury or death.
WARNING
Unless otherwise stated, a ground connection on the instrument's
front or rear panel is for a reference of potential only and is not to be
used as a safety ground.
Do not operate in an explosive or flammable atmosphere
WARNING
Do not operate the instrument in the presence of flammable gases
or vapors, fumes, or finely divided particulates.
Use only in office-type indoor setting
WARNING
The instrument is designed to be used in office-type indoor
environments. Do not operate the instrument:
• In the presence of noxious, corrosive, or flammable fumes,
gases, vapors, chemicals, or finely-divided particulates.
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• In relative humidity conditions outside the instrument's
specifications.
• In environments where there is a danger of any liquid being
spilled on the instrument.
• In air temperatures exceeding the specified operating
temperatures.
• In atmospheric pressures outside the specified altitude limits
or where the surrounding gas is not air.
• In environments with restricted cooling air flow, even if the
air temperatures are within specifications.
• In direct sunlight.
CAUTION
This instrument is intended to be used in an indoor pollution degree
2 environment. The operating temperature range is 10 °C to 40 °C
and the operating humidity range is up to 80% relative humidity with
no condensation allowed. Measurements made by this instrument
may be outside specifications if the instrument is used in non-officetype environments. Such environments may include rapid
temperature or humidity changes, sunlight, vibration and/or
mechanical shocks, acoustic noise, electrical noise, strong electric
fields, or strong magnetic fields.
Do not operate instrument if damaged
If the instrument is damaged, appears to be damaged, or if any
liquid, chemical, or other material gets on or inside the instrument,
remove the instrument's power cord, remove the instrument from
service, label it as not to be operated, and return the instrument to
Global Specialties for repair. Notify Global Specialties of the nature
of any contamination of the instrument.
Clean the instrument only as instructed
Do not clean the instrument, its switches, or its terminals with
contact cleaners, abrasives, lubricants, solvents, acids/bases, or
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other such chemicals. Clean the instrument only with a clean dry
lint-free cloth or as instructed in this manual.
Not for critical applications
WARNING
This instrument is not authorized for use in contact with the human
body or for use as a component in a life-support device or system.
Do not touch live circuits
WARNING
Instrument covers must not be removed by operating personnel.
Component replacement and internal adjustments must be made by
qualified service-trained maintenance personnel who are aware of
the hazards involved when the instrument's covers and shields are
removed. Under certain conditions, even with the power cord
removed, dangerous voltages may exist when the covers are
removed. To avoid injuries, always disconnect the power cord from
the instrument, disconnect all other connections (for example, test
leads, computer interface cables, etc.), discharge all circuits, and
verify there are no hazardous voltages present on any conductors
by measurements with a properly-operating voltage-sensing device
before touching any internal parts. Verify the voltage-sensing device
is working properly before and after making the measurements by
testing with known-operating voltage sources and test for both DC
and AC voltages. Do not attempt any service or adjustment unless
another person capable of rendering first aid and resuscitation is
present. Do not insert any object into an instrument's ventilation
openings or other openings.
WARNING
Hazardous voltages may be present in unexpected locations in
circuitry being tested when a fault condition in the circuit exists.
Fuse replacement
WARNING
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Fuse replacement must be done by qualified service-trained
maintenance personnel who are aware of the instrument's fuse
requirements and safe replacement procedures. Disconnect the
instrument from the power line before replacing fuses. Replace
fuses only with new fuses of the fuse types, voltage ratings, and
current ratings specified in this manual or on the back of the
instrument. Failure to do so may damage the instrument, lead to a
safety hazard, or cause a fire. Failure to use the specified fuses will
void the warranty.
Servicing
CAUTION
Do not substitute parts that are not approved by Global Specialties
or modify this instrument. Return the instrument to Global
Specialties for service and repair to ensure that safety and
performance features are maintained.
Cooling fans
CAUTION
This instrument contains one or more cooling fans. For continued
safe operation of the instrument, the air inlet and exhaust openings
for these fans must not be blocked nor must accumulated dust or
other debris be allowed to reduce air flow. Maintain at least 25 mm
clearance around the sides of the instrument that contain air inlet
and exhaust ports. If mounted in a rack, position power devices in
the rack above the instrument to minimize instrument heating while
rack mounted. Do not continue to operate the instrument if you
cannot verify the fan is operating (note some fans may have
intermittent duty cycles). Do not insert any object into the fan's inlet
or outlet.
Use correctly sized wires
WARNING
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To connect a load to the power supply, use a wire diameter large
enough to handle the maximum continuous output short-circuit
current of the power supply without the wire overheating.
For continued safe use of the instrument
• Do not place heavy objects on the instrument.
• Do not obstruct cooling air flow to the instrument.
• Do not place a hot soldering iron on the instrument.
• Do not pull the instrument with the power cord, connected
probe, or connected test lead.
• Do not move the instrument when a probe is connected.
Compliance Statements
Disposal of Old Electrical & Electronic Equipment
(Applicable in the European Union and other
European countries with separate collection
systems). This product is subject to Directive
2012/19/EU of the European Parliament and the
Council of the European Union on waste electrical
and electronic equipment (WEEE), and in
jurisdictions adopting that Directive, is marked as
being put on the market after August 13, 2005, and should not be
disposed of as unsorted municipal waste. Please utilize your local
WEEE collection facilities in the disposition of this product and
otherwise observe all applicable requirements.
The LD-200P is CE compliant.
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Table of Contents
1 General Information .................................................................. 7
1.1 Product Overview 7
1.2 Features 7
1.3 Package Contents 7
1.4 Front Panel Overview 8
1.5 Rear Panel Description 10
2 Getting Started ......................................................................... 11
2.1 Input Power and Fuse Requirements 11
2.2 Fuse Requirements 11
2.3 Line Voltage Selection 12
2.3.1 Check and/or Change Fuse ....................................................... 12
2.3.2 Check and/or Change Line Voltage Switch ............................... 12
2.4 Ventilation 13
3 Operating the Electronic Load ............................................... 13
3.1 Constant Voltage Setting 13
3.2 Constant Current Setting 14
3.3 Constant Power Setting 14
3.4 Constant Resistance Setting 14
3.5 List Mode 14
3.5.3 Storing the Settings ................................................................... 15
3.5.4 Data Recall ................................................................................ 15
3.5.5 List Timing ................................................................................. 15
3.5.6 Run the List ................................................................................ 15
3.6 Control from a PC 16
Specifications ................................................................................ 18
4 Maintenance ............................................................................. 19
4.1 Preventative Steps 19
4.2 When the Unit is Not Turning On 20
4.3 Fuse Replacement 20
5 Service and Warranty Information ......................................... 20
5.1 Limited One-Year Warranty 20
5.2 Calibration and Repair 21
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1 General Information
1.1 Product Overview
The LD-200P is a programmable high resolution load with digital
button control for ease of operation. With a voltage range of 1-63 V
and current range of 10 mA to 15 A, the LD-200P is the perfect allround electronic load. The LD-200P can operate in constant current
(CC), constant voltage (CV), constant resistance (CR), and constant
power (CW) mode and has a standard USB interface for remote
communication.
1.2 Features
• High resolution (20 mV, 1 mA, 0.1 W, 0.1 Ω)
• 9 sets of programmable memory
• 4-digit LED display
• Voltage range: 1 - 63 V
• Current range: 10 mA - 15 A
• Maximum power: 200 W
• Operation modes: constant voltage (CV), constant current
(CC), constant power (CP), and constant resistance (CR)
• Built in USB interface
• Over Voltage (OVP) & Over Current Protection (OCP)
1.3 Package Contents
Please inspect the instrument mechanically and electrically upon
receiving it. Unpack all items from the shipping carton, and check for
any obvious signs of physical damage that may have occurred
during transportation. Report any damage to the shipping agent
immediately. Save the original packing carton for possible future
reshipment.
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The 1415 power supply is shipped with the following contents:
• LD-200P Electronic Load
• Power Cord
• User Manual
• Banana Plug to Alligator Clip Lead Wires (2 Black & 2 Red)
1.4 Front Panel Overview
Figure 1: Front Panel
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Front Panel
1. Power button: Power On/Off.
2. V display: Indicates voltage limit or testing voltage value
3. C display: Indicates current setting or testing current value.
4. W display: Indicates power setting or testing power value.
5. Ω display: Indicates resistance setting or testing resistance value.
6. Memory display: Indicates the present memory location.
7. Status display: Indicates the operational mode.
8. – Input 4mm safety banana jack connector: Negative input terminal.
9. + Input 4mm safety banana jack connector: Positive input terminal.
10. GND 4mm safety banana jack connector: Ground terminal.
11. CV: Select constant voltage mode.
12. CC: Select constant current mode.
13. CP: Select constant power mode.
14. CR: Select constant resistance mode.
15. 0 - 9: Data input.
16. “ ! ” : Decimal pont.
17. ENTER: Activate the input.
18. LOAD button.
19. Push to activate load and LED.
20. Push again to turn off.
21. SHIFT button: Push to access the secondary functions.
22. + (LIST):
+ : Increase the setting value.
LIST: Push [SHIFT][LIST] to ENTER to List Mode.
23. - (TIMER):
- : Decrease the setting value.
TIMER: Push [SHIFT][TIMER] to change to time duration for List Mode.
24. " (STORE):
" : Change digit to the left.
STORE: Push [SHIFT][STORE] to change to save settings.
25. # (RECALL):
# :Change digit to the right.
RECALL: Push [SHIFT][RECALL] to view saved settings.
26. USB connection
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1.5 Rear Panel Description
Rear Panel
27. Heat sink: Heat dissipation for power transistor.
28. Ventilation fan: 8” 24 V DC fan.
29. Power input socket.
30. ▲ The input power voltage indicator.
31. Fuse holder and input voltage selector.
Figure 2: Rear Panel
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2 Getting Started
2.1 Input Power and Fuse Requirements
The load has a selectable AC input that accepts line voltage input
within:
• Voltage: 115 V or 230 V (±10%)
• Frequency: 47 Hz – 63 Hz
Before connecting to an AC outlet or external power source, be sure
that the power switch is in the OFF position and verify that the AC
power cord, including the extension line, is compatible with the rated
voltage/current and that there is sufficient circuit capacity for the
power supply. Once verified, connect the cable firmly.
WARNING
The included AC power cord is safety certified for this instrument
operating in rated range. To change a cable or add an extension
cable, be sure that it can meet the required power ratings for this
instrument. Any misuse with wrong or unsafe cables will void the
warranty.
WARNING
The power cord provides a chassis ground through a third
conductor. Verify that your power outlet is of the three-conductor
type with the correct pin connected to earth ground.
2.2 Fuse Requirements
An AC input fuse is necessary when powering the instrument. The
below table shows the fuse required for all models operating with
either 120 VAC or 240 VAC input.
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Selector
Line Voltage
Fuse
120 V
114 - 126 V, 50/60 Hz
1.0 A
240 V
228 - 252 V, 50/60 Hz
0.6 A
2.3 Line Voltage Selection
The LD-200P can be selected to operate with 110 V input or 220 V
input. To ensure that your instrument is properly configured to
operate at the desired AC line voltage, please follow the steps
below.
WARNING
For safety, no power should be applied to the instrument while
changing line voltage operation. Disconnect all cables connected to
the instrument before proceeding.
2.3.1 Check and/or Change Fuse
• Locate the fuse box next to the AC input connector in the
rear panel (see Figure 2).
• With a small flat blade screwdriver, insert into the fuse box
slit to pull and slide out the fuse box as indicated below.
• Check and replace fuse (if necessary) for the desired line
voltage operation (see section 2.2).
2.3.2 Check and/or Change Line Voltage Switch
The input power voltage indicator is a black arrow ▽ on the rear
panel near the AC input connector. See Figure 2, #30. The fuse
holder (Figure 2, #31, has a both a smaller white arrow ▽ (120 V)
and a smaller black arrow (240 V) on it. The fuse holder should be
rotated so that the fuse holder arrow of the appropriate voltage is
pointing to the larger black input power voltage indicator arrow. See
Figures 3 & 4 below.
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CAUTION
Do not connect power to the instrument until the line voltage
selection is setup correctly. Applying an incorrect line voltage or
configuring the line voltage selection improperly may damage the
instrument and void all warranty.
2.4 Ventilation
CAUTION
Also make sure the ventilation holes are not blocked. Ensure the
ventilation fan is working well (it should turn on at power-on). Do not
load the output if fan is not working otherwise it may cause
overheating.
3 Operating the Electronic Load
3.1 Constant Voltage Setting
Push [CV], key in the voltage, and hit the ENTER key to set the
input voltage value. For example, to set the input voltage value to
10.5 V:
Push [CV] [1] [0] [.] [5] ENTER
Figure 3: 120 V Setup
Figure 4: 240 V Setup
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3.2 Constant Current Setting
Push [CC], key in the current, and hit the ENTER key to set the
input current value. For example, to set the input current value to
3.05 A:
Push [CC][3][.][0][5] ENTER
If the input current is less than the set current value, the LD-200P
will pull down the input voltage until input current equals the set
value or input power reaches 200 W.
3.3 Constant Power Setting
Push [CP], key in the power value, and hit the ENTER key to set the
input power value. For example, to set the input power value to 110
W:
Push [CP][1][1][0] ENTER
3.4 Constant Resistance Setting
Push [CR], key in the resistance value, and hit the ENTER key to
set load resistance value. For example, to set the load resistance
value at 510 Ω:
Push [CR][5][1][0] ENTER
3.5 List Mode
The LD-200P has List Mode which allows you to playback the
settings saved in memory locations 1-9.
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3.5.3 Storing the Settings
Push [SHIFT][STORE], number key, ENTER key to save settings to
the target memory location. For example, to save settings to
memory location 5:
Push [SHIFT][STORE][5] ENTER
3.5.4 Data Recall
Push [SHIFT][RECALL], number key, ENTER key to recall all
setting values from target memory location. For example, to recall
values from memory location 2:
Push [SHIFT][RECALL][2] ENTER
3.5.5 List Timing
Use the TIMER function to set how long the load will run the settings
from a memory location. For example to have memory location 2 run
for 30 seconds, set the timer to 30 seconds and save this in location
2.
First, if you are showing a different memory location, push
[SHIFT][RECALL][2] ENTER to go to memory location 2. Then push
[SHIFT][TIMER][3][0] ENTER. Finally, push [SHIFT][STORE][3]
ENTER [to save].
3.5.6 Run the List
Push [SHIFT][LIST] ENTER key ENTER List Mode and
automatically run through the settings of locations 1-9. For example,
say that you have already set location 1 at 5 V with a delay time of
10 seconds. Location 2 has been set to 60 V with a delay time of 15
seconds. Location 3-9 all have 0 V for 0 seconds. Now to activate
the list:
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Push [SHIFT][LIST][LOAD].
The load will now show location 1 and display the testing voltage
(up to the limit of 5 V) and after 10 seconds it will change to location
2 with a limit of 60 V.
List Mode will run continuously through your 9 programs starting at
location 1. Each location must be set to the same mode such as CC
or CV otherwise the program will stop at the first location with a
different mode.
3.6 Control from a PC
1. The LD-200P Software is compatible with the following
operating systems: Windows 9X, Windows ME, and
Windows XP, Windows 7 (32-bit only).
2. Download the software from the LD-200P page on our
website: globalspecialties.com. See the “DOWNLOADS”
tab.
3. Browse to the copy of the software on your computer.
4. Double click on the “Setup.exe” file. Follow the
instructions on the screen to install the LD-200P
Software.
5. Browse to the Driver folder. Use
CP210x_VCP_Win2K_XP_S2K3 for Windows ME, 2000
or XP. Use CP210x_VCP_Win7 for Windows 7. Double
click on the
appropriate driver.
Follow the
instructions on the
screen to install
the driver.
Figure 5: Driver Installation
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6. Connect the LD-200P to your computer via a USB cable.
7. Open the LD-200P Software.
8. The LD-200P program will confirm the COM port. The
software only recognizes COM ports 1-5, so your LD200P should be assigned to one of those. For help with
COM ports, see the “Help with COM ports” document on
the LD-200P web page (DOWNLOADS).
9. The computer will display the image shown below. You
can now control the LD-200P by your PC or on the front
panel of LD-200P.
10. The output by default is set OFF. It will be reset to OFF
on each startup. Click the Output/ON to switch on the
output.
11. Click CV, CP, CC, CR to select the operation mode.
12. Click the number panel to input the voltage you need (0
– 63.00V).
13. Click ENTER to activate the desired voltage on the LD-
200P.
Figure 6: PC Control
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Specifications
All specifications apply to the unit after a temperature stabilization time of 15
minutes over an ambient temperature range of 25 °C ± 5 °C.
LD-200P Electronic Load
Input Ratings
Input Voltage
63 V
Input Current
15 A
Input Power
200 W
CV Mode
Range
1-63 V
Resolution
20 mV
Accuracy
±(1%+20 mV)
CC Mode
Range
10 mA – 15 A
Resolution: 10 mA – 1 A
1 A – 15 A
1 mA
10 mA
Accuracy : 10 mA – 1 A
1 A – 6 A
6 A – 15 A
±(0.5%+1 mA)
±(0.5%+10 mA)
±(1%+100 mA)
CP Mode
Range
1 – 200 W
Resolution
0.1 W
Accuracy
±(1%+0.2 W)
CR Mode
Range
0.5-999 Ω
Resolution
0.1 Ω
Accuracy
±(1%+0.2 Ω)
List Mode
Memory Locations
1-9
Timer Range
1-999999 sec
Timer Resolution
1 sec
Readback Voltage
Resolution
20 mV
Accuracy
±(1%+50 mV)
Readback Current
Resolution
10 mA
Accuracy
±(1%+10 mA)
General
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Remote Interface
USB
Protection
OVP & OCP
Operating Temperature
50 ºF to 104 ºF (10 ºC to 40 ºC)
Operating Humidity
80% R.H.
AC Line Input
VAC 115/230 ±10%, 50/60 Hz
(Selectable)
Fuse
120 V, 1.0 A or 240 V, 0.6 A
Dimensions (W x H x D)
9 x 6.75 x 12 in (228 x 171 x 305 mm)
Weight
10 lbs (4.5 kg)
Warranty
One-year warranty
Specifications are subject to change without notice. To ensure the most current
version of this manual, please download the current version from our website:
globalspecialties.com.
4 Maintenance
4.1 Preventative Steps
Please follow these preventive steps to ensure the proper operation
of your instrument.
• Never place heavy objects on the instrument.
• Never place a hot soldering iron on or near the instrument.
• Never insert wires, pins, or other metal objects into
ventilation fan.
• Never move or pull the instrument with power cord or output
lead. More importantly, never move the instrument when the
power cord or output lead is connected.
• Do not obstruct the ventilation holes in the rear panel as this
will increase the internal temperature.
• Do not operate the instrument with the cover removed
unless you are a qualified service technician.
• Clean and recalibrate the instrument on a regular basis to
keep the instrument looking nice and working well.
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• Remove any dirt, dust, and grime whenever they become
noticeable on the outside cover using a soft cloth moistened
with a mild cleaning solution.
4.2 When the Unit is Not Turning On
Check if the power ON/OFF switch is turned ON. Check for blown
fuse. If not, then check the power cord. Please make sure that the
power cord is properly connected to the unit. Please also check the
main switch and ensure that the AC supply at your site is the same
as the one mentioned at the rear chassis of the unit.
4.3 Fuse Replacement
If the fuse blows, the LED will not light and the instrument will not
operate. Replace only with the correct value fuse. See sections 2.2
and 2.3.
5 Service and Warranty Information
5.1 Limited One-Year Warranty
Cal Test Electronics warrants this product to be free from defective
material or workmanship for a period of 1 year from the date of
original purchase. Under this warranty, Cal Test Electronics is
limited to repairing the defective device when returned to the
factory, shipping charges prepaid, within the warranty period.
Units returned to Cal Test Electronics that have been subject to
abuse, misuse, damage or accident, or have been connected,
installed or adjusted contrary to the instructions furnished by Cal
Test Electronics, or that have been repaired by unauthorized
persons, will not be covered by this warranty.
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Cal Test Electronics reserves the right to discontinue models,
change specifications, price, or design of this device at any time
without notice and without incurring any obligation whatsoever.
The purchaser agrees to assume all liabilities for any damages
and/or bodily injury which may result from the use or misuse of this
device by the purchaser, his employees, or agents.
This warranty is in lieu of all other representations or warranties
expressed or implied and no agent or representative of Cal Test
Electronics is authorized to assume any other obligation in
connection with the sale and purchase of this device.
5.2 Calibration and Repair
If you have a need for any calibration or repair services, please visit
us on the web at: globalspecialties.com. See the “Service” tab. Or
contact us via the “Contact” tab. You may also contact us at:
Global Specialties®
(A Cal Test Electronics Company)
22820 Savi Ranch Parkway
Yorba Linda, CA 92887
800-572-1028 or 714-221-9330
globalspecialties.com
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