Global Specialties Global Specialties 1410 Manual

1410

90W DC
Power Supply

User

Manual

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176

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epot.com

Safety Summary

The following safety precautions apply to both operating and
maintenance personnel and must be observed during all phases
of operation, service, and repair of this instrument. Before applying
power, follow the installation instructions and become familiar with
the operating instructions for this instrument.

GROUND THE INSTRUMENT

To minimize shock hazard, the instrument chassis and cabinet must
be connected to an electrical ground. This instrument is grounded
through the ground conductor of the supplied, three-conductor ac
power cable. The power cable must be plugged into an approved
three-conductor electrical outlet. Do not alter the ground connection.
Without the protective ground connection, all accessible conductive
parts (including control knobs) can render an electric shock. The
power jack and mating plug of the power cable meet IEC safety
standards.

DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE

Do not operate the instrument in the presence of ammable

gases or fumes. Operation of any electrical instrument in such an

environment constitutes a denite safety hazard.

KEEP AWAY FROM LIVE CIRCUITS

Instrument covers must not be removed by operating personnel.
Component replacement and internal adjustments must be made by

qualied maintenance personnel. Disconnect the power cord before

removing the instrument covers and replacing components. Under
certain conditions, even with the power cable removed, dangerous
voltages may exist. To avoid injuries, always disconnect power and
discharge circuits before touching them.

DO NOT SERVICE OR ADJUST ALONE

Do not attempt any internal service or adjustment unless another

person, capable of rendering rst aid and resuscitation, is present.

DO NOT SUBSTITUTE PARTS OR MODIFY THE INSTRUMENT

Do not install substitute parts or perform any unauthorized

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modications to this instrument. Return the instrument to Global

Specialties (Cal Test Electronics) for service and repair to ensure
that safety features are maintained.

WARNINGS AND CAUTIONS

WARNING and CAUTION statements, such as the following
examples, denote a hazard and appear throughout this manual.
Follow all instructions contained in these statements.

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.

WARNING

Do not alter the ground connection. Without the protective ground
connection, all accessible conductive parts (including control knobs)
can render an electric shock. The power jack and mating plug of the
power cable meet IEC safety standards.

WARNING

To avoid electrical shock hazard, disconnect power cord before

removing covers. Refer servicing to qualied personnel.

CAUTION

Before connecting the line cord to the AC mains, check the rear
panel AC line voltage indicator. Applying a line voltage other than
the indicated voltage can destroy the AC line fuses. For continued

re protection, replace fuses only with those of the specied voltage

and current ratings.

CAUTION

This product uses components which can be damaged by electro­static discharge (ESD). To avoid damage, be sure to follow proper
procedures for handling, storing and transporting parts and

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subassemblies which contain ESD-sensitive components.

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.

1 INTRODUCTION

The 1410 Power Supply is a high quality serial control type DC

Regulated Power Supply. This model can be operated at constant

voltage or constant current mode whose output can be varied from
0 to 30 volts.

This compact unit has separate 3-digit LED voltage and
current meters for monitoring of the output voltage and current
simultaneously. In terms of operability, the 1410 enables high

precision, continuous variability via coarse and ne adjust knobs.

The 1410 can be connected in parallel with multiple units of the

same model, set up in “Master/Slave” conguration, to increase the

output current capability.

Serial connection of multiple units can be used to increase the
output voltage level.

The 1410 provides clean and stable DC output which is most

suitable for many areas including laboratory, industrial, eld service,

hobby, and educational applications.

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2 FEATURES

z Constant voltage / constant current power supply which

features excellent line and load regulations, low ripple and
noise characteristics.

z The unit features separate voltage and current meters

so that output voltage and current can be monitored
simultaneously.

z Output voltage and current can be adjusted continuously in

full range to any desired values. Adjustment can be done
easily and precisely by using separate coarse and fine
adjust knobs.

z The constant current circuit operates to protect against

overload and output short circuit. The limiting current values
can be preset in the full range of the rated values.

z Multiple units of the 1410 can be connected in series to

provide higher output voltage.

z Multiple of the 1410 can be connected in parallel (Master/

Slave configuration) to achieve higher output current.

3 SPECIFICATIONS

All specications apply to the unit after a temperature stabilization

time of 15 minutes over an ambient temperature range of 25 °C ± 5
°C.

1410 Power Supply

Output Voltage

Output Current 3 A

CONSTANT VOLTAGE CHARACTERISTICS

Load regulation (0-100%) 0.02% +3 mV

Line regulation ( ± 6% ) 0.02% +3 mV

Ripple and noise r.m.s 1 mV

CONSTANT CURRENT CHARACTERISTICS

Load regulation (0-100%) 0.02% +3 mA

Line regulation ( ± 6% ) 0.02% +3 mA

0

–30 V

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OUTPUT

Output terminals ( color )

Ground proof voltage ±180 V

INSTRUMENTATION

Voltmeter 3 digits

Ammeter 3 digits

FUNCTIONS

Serial connection
( independent control mode )

Parallel operation
( master – slave mode )

COOLING SYSTEM Natural Convection

POWER CONSUMPTION

VA / W
( for rated load of AC 220 V )

INPUT VOLTAGE

Voltage, Frequency

( + ) Red, ( – ) Black,
(GND) Green

Can be connected in
series (within limits of
ground proof voltage)

Can be operated in
“one-control” parallel

conguration (only same

model)

Approximate 220

120/240 VAC, 50/60 Hz
Switchable

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Operating ambient temperature

DIMENSIONS AND WEIGHT

Dimensions ( W x H x D ) 205 x 115 x 270 ( mm )

Weight Approximate 7.4 kg

FUSE RECOMMENDED

Input fuse F2

AC 100V, 110V, 120V 3AF

AC 220V, 230V, 240V 2AF

Internal fuse F1 500 mAF

–40°C

–80% R.H.

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Specications are subject to change without notice. To ensure the

most current version of this manual, please download the current

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version from our website: http://www.testequipmentdepot.com/.

4 PRECAUTIONS FOR USE

1.1 CONFIRMING THE SUPPLY RANGE

The unit must be used within its specied range. The rated input

voltage can be found on the rating label under the unit. Before
plugging into the AC supply outlet, check if the input rating conforms
with your local supply. A voltage selector is on the back of the unit.
Switch the voltage selector to the correct position before use.

1.2 PRECAUTIONS FOR CONNECTION OF

OUTPUT TERMINALS

This unit is a oating type power supply. For ordinary use, be sure

that the master/slave switch on the rear panel is set to master

position and either the (+ ) output terminal or the ( − ) terminal is
connected to the GND terminal ( chassis GND ) via the shorting bar.

1.3 OPERATING ENVIRONMENT

z Be sure to use this unit within the specified ambient

temperature range listed in the specification table.

z Because the unit is cooled by natural convection, do not

place objects on top to block the convection. Also user must
avoid to place the unit on or rear any heat emitting devices
or use multiple units in stacked configuration. For best
result, use the unit in an environment that is as well cross­ventilated as possible.

z Altitude up to 2000 m

z Installation category : CAT II

z Pollution degree : 2

z Indoor use only

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176

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5 EXPLANATION OF PANELS

1.1 FRONT PANEL

Figure 1

1. Power Switch

2. DC Voltmeter

3. DC Ammeter

4. Constant Current Mode (C.C.) Indicator

5. Constant Voltage Mode (C.V.) Indicator

6. Voltage Coarse Adjust

7. Voltage Fine Adjust

8. Current Coarse Adjust

9. Current Fine Adjust

10. Output Terminal Positive (+)

11. Output Terminal Negative (–)

12. Ground Terminal (GND)

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1.2 REAR PANEL

Figure 2

13. Master/Slave Switch

14. In/Out Terminals for Master/Slave Operation.

15. Heat Sink

16. Main Fuse

17. Power Cable

6 OPERATION PROCEDURES

1.1 STAND-ALONE OPERATION

When using the power supply in stand-alone mode, simply operate
by manipulation of the panel switches and adjustment knobs as
needed.

However, be sure that Master/Slave Switch is set to MASTER

position.

1.2 SERIAL CONNECTION

Two or more units of the 1410 can be connected in series to
achieve higher output voltage. The resulting output will be sum of

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the outputs of the individual units. In this situation; however, care
must be taken that the voltage of neither of the terminals, with

respect to the chassis GND, exceed the ground proof voltage of

+180 V.

1.2.1 SINGLE VOLTAGE CONNECTION

For connection as shown in Figure 3, the output voltage will be the
sum of individual supplies and output current will be limited to within

the value specied for a single unit whichever is lower. For positive

ground terminal to output positive point and for negative ground
system, connect the ground terminal to the negative output point.

1.2.2 PLUS / MINUS CONNECTION

For connection as shown in Figure 4 where the intermediate point is

hooked up to ground, the conguration can be used as Plus/Minus

power supply.

Figure 3

Figure 4

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1.3 PARALLEL OPERATION ( MASTER/SLAVE
CONTROL )

Two or more units of the 1410 can be connected in parallel to give
an increase in output current capacity. The total output current
capacity will be the sum of the output currents of the individual units.
In this mode of operation, one supply will act as the master and all
settings are from the master unit.

NOTE

When connecting the supplies in

parallel, be sure that all the power

supplies are turned OFF.

1.3.1 CONNECTION PROCEDURES

z Switch OFF the power of all units.

z Slide the Master/Slave Switch, Figure 5, on all the slave

units from MASTER to SLAVE position.

z Connect the In/Out terminals for Master/Slave operation as

shown in Figure 5.

z Connect the output terminals of each of the units to the

load as shown in Figure 6. For proper performance, use all
cables of same length and thickness.

z Set the voltage and current adjustment knobs of all the

slave units to the maximum position.

z Switch “ON” the master and slave units. The output voltage

and current can then be controlled via the adjustment knobs
on the master unit. In the case where the output goes to “0”
ampere during parallel operation mode, the output voltage
will cease to be controlled by the master unit. Be sure to
keep a minimum current flowing that is at least several
percent of the rated current at all times.

1.3.2 CONNECTION OF TERMINAL ON REAR PANEL

While pressing on the slit portion of the terminal with a small screw
driver, insert the connecting cable into the round hole. When

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insertion is completed, release the screw driver. See Figure 7.

Figure 5

Figure 6

Figure 7

7 MAINTENANCE

WARNING

The following instructions are for use by qualied personnel only.

To aviod electrical shock, do not perform any servicing other than

contained in the operating instructions unless you are qualied to do

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so.

1.1 MAIN FUSE REPLACEMENT

If the main fuse blows, the power on LED indicator will not light and
power supply will not operate. The fuse should not normally open
unless a problem has developed in the unit. Try to determine and
correct the cause of the blown fuse, then replace only with a fuse of
correct rating. The fuse is located on the rear panel and fuse rating
can be found next to the fuse holder. If the problem persists, return

the unit to Global Specialties for service.

1.2 CALIBRATIONS

This unit has been accurately calibrated at the factory before

shipment. Re-calibration is recommended only if repairs have

been made in a circuit affecting calibration accuracy, or if you have
reason to believe the unit is out of calibration.

However, calibrations should be attempted only if a 3½ digit

multimeter with an accuracy of +0.5% VDC or better, and a 0–50 Ω,

250 W adjustable resistive load is available.

If re-calibration is required, use the following procedures. Location
of the electrical calibration on the main PCB is shown in Figure 8.

Figure 8

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1.3 VOLTAGE CALIBRATION

z Connect the multimeter to measure the DC voltage across

the power supply (+) and (–) output terminals.

z Turn on the power supply, and turn the panel VOLTAGE

adjustment knob fully clockwise (maximum output).

z Adjust trimmer VR11 for a reading (Vmax. +0.5) ±0.1 volts

on the multimeter. Vmax is the maximum normal output of
the specific model under calibration.

1.4 VOLTAGE ALIGNMENT

z Set the output voltage to about half the maximum allowable

output.

z Align the voltmeter reading with the multimeter reading.

Ajust the trimmer VR-1 on the back of meter PCB.

1.5 CURRENT CALIBRATION

z Connect the 0–50 Ω /250 W resistive load in series with the

multimeter to measure the DC output current terminals.

z Adjust trimmer VR-5 fully anti-clockwise (referring to the

component side).

z Adjust the output voltage to the its maximum allowable

output.

z Adjust the variable resistive load to obtain (Imax +0.1) ±0.02

amps on the multimeter. Imax is the maximum nominal
allowable output current.

z Adjust trimmer VR-5 clockwise slowly until the limiting point

is just reached and the C.C. LED lights up at the same time.

1.6 AMMETER ALIGNMENT

z Adjust the output voltage to half of its maximum allowable

output voltage.

z Adjust the variable resistive load to obtain half of its

maximum allowable current.

z Align the ammeter reading with the multimeter reading.

Adjust the trimmer VR-2 on the back of meter PCB.

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8 Service and Warranty Information

1.1 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.

Cal Test Electronics reserves the right to discontinue models,

change specications, 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.

99 Washington Street
Melrose, MA 02176

Phone [phone]
Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

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