APT 8500 Series User manual

8500 Series
Operation Manual for Models
8505, 8512, 8520, 8540
Programmable AC Power Source
V1.00
Part # 40237
Via Acquanera, 29 22100 Como
tel. 031.526.566 (r.a.) fax 031.507.984
[e-mail] www.calpower.it

DECLARATION OF CONFORMITY
Manufacturer: Associated Power Technologies, a Division of Ikonix USA
Address: 28105 N Keith Drive
Lake Forest, IL 60045
Product Name: APT 8500 Series Power Source
Model Number: 8505, 8512, 8520 & 8540
Conforms to the following Standards:
Safety: EN 61010-1:2010
EMC:EN 61326-1:2013 Class A, IEC 61000-3-11:2000, IEC 61000-3-12:2011, EN 61326-2-1:2013, IEC 61000-
4-2:2009, IEC 61000-4-3:2006+A2:2010, IEC 61000-4-4:2012, IEC 61000-4-5:2014 + A1:2017, IEC 61000-4-
6:2014, IEC 61000-4-8:2010, IEC 61000-4-34:2007+A1:2009, EN55011:2016/A1:2017 (Group 1, Class A)
Supplementary Information
The product herewith complies with the requirements of the Low Voltage Directive 2014/35/EU, the EMC Directive
2014/30/EU and the RoHS Directive 2011/65/EU with respect to the following substances: Lead (Pb), Mercury
(Hg), Cadmium (Cd), Hexavalent chromium (Cr (VI)), Polybrominated biphenyls (PBB), Polybrominated diphenyl
ethers (PBDE), Deca-BDE included.
Last two digits of the year in which the CE marking was affixed: 13
The technical file and other documentation are on file with Associated Power Technologies, Inc.
Joseph Guerriero
President
Associated Power Technologies a Division of Ikonix USA
Lake Forest, Illinois USA
September 1, 2020

© Ikonix USA
Table of Contents
1. Introduction 1-4
1.1 Warranty 1
1.2 Glossary 2-3
1.3 Safety Symbols 3-4
1.4 Safety Percaution 4
1.5 Service and Maintence 4
2. Getting Started 5-8
2.1 Unpacking and Inspection 5
2.2 Input Current Consideration 5
2.3 Preparation For Use 5
2.4 Instrument Power Switch 6
2.5 Power Cable 6
2.6 Environmental Conditions 7
2.7 Packaging 8
3. Specifications and Controls 8-19
3.1 Specifications 8-15
3.2 Output Power, Power Factor and Output Current Considerations 15-16
3.3 Instrument Controls 16-19
4. Programming Instructions 20-43
4.1 Powering on the Instrument 20-21
4.2 System 21-23
4.3 Editing System Parameters 23-24
4.4 Mode and File 24-40
4.5 Edit, Copy, Delete, and Load Test File 41-43
5. Perform Test 44-52
5.1 Meter 44
5.2 Manual Mode 44
5.3 List Mode 45
5.4 Step Mode 45
5.4 Pulse Mode 45
5.6 Results 46
5.7 Perform Test Screen Considerations 47
5.8 Error and Failure Messages 48-52
6. Remote PLC 53-55
7. Bus Remote Interface USB/LAN/GPIB (Programmable Option Only) 56-78
7.1 USB Communication Port Configuration 56
7.2 LAN Configuration 57
7.3 SCPI (Standard Commands for Programable Instruments) Basics 57-58
7.4 SCPI Command TREE 59-69
7.5 GPIB Interface 70-71
7.6 GPIB/USB/LAN Interface Sample Command List 72-78
This manual is an interactive PDF. Click each heading below to jump directly to the topic you need. Web addresses are also interactive.

© Ikonix USA
8 Options 79
8.1 Option 01 – Programmable 79
8.2 Option 03 – GPIB Interface 79
9. Calibration Procedure 80-87
9.1 Enter Calibration Screen 80-81
9.2 Calibration of Voltage Setting and Measurement (Low Range) 81-84
9.3 Calibration of Voltage Setting and Measurement (High Range) 84
9.4 Calibration of Current Measurement 85-86
9.5 View Calibration Data 87
10. Service and Maintence 88
11. Replacement Parts List 89-90

© Ikonix USA 1
Associated Power Technologies, Inc. (APT), certies that the instrument listed in this manual meets or exceeds
published manufacturing specications. This instrument was calibrated using standards that are traceable to
the National Institute of Standards of Technology.
Your new instrument is warranted to be free from defects in workmanship and material for a period of (3)
years from date of shipment. During the warranty period, you must return the instrument to Associated
Power Technologies, Inc. or its branches for repair. Associated Power Technologies reserves the right to use its
discretion on replacing the faulty parts or replacing the assembly of the whole unit.
APT will void your warranty under the following states:
• Operation of the instrumentation under non-normal conditions.
• Any non-authorized modications, tampering or physical damage.
• Elimination of any connections in the earth grounding system or bypassing any safety systems.
• Use of non-authorized parts in the repair of this instrument. Parts used must be parts that are
recommended by APT as an acceptable specied part.
This warranty does not cover accessories not of Associated Power Technologies, a Division of Ikonix USA
manufacture.
Except as provided, herein APT makes no warranties to the purchaser of this instrument. All other warranties,
expressed or implied (including, without limitation, merchantability or tness for a particular purpose), are
hereby excluded, disclaimed and waived.
APT recommends that your instrument be calibrated on a twelve month cycle. Instruments returned to APT
annually for calibration fall under our extended warranty which can be extended up to ve years. Each year
the instrument is returned to APT, in consecutive years, the warranty is extended one additional year. This
process can be repeated up to four years for a 5-Year Warranty.
Instruments returned for warranty repair, within the rst six months of the warranty period, will have the
warranty extended for one year from the date of repair at no charge. Instruments received after the rst six
months can have the warranty extended for 3 months after its original expiration date at no charge or the
warranty can be extended for a full year at the cost of an annual calibration.
1. Introduction
1.1 Warranty

© Ikonix USA 2
1.2 Glossary of Terms
Alternating Current (AC) - Current that reverses direction on a regular basis (usually 60 times per second in the United
States). Measured in amps.
AC Power Source - An instrument that takes one AC voltage and frequency level and converts it into another AC
voltage and frequency level.
Amplier - A circuit that boosts an input signal from one level to another.
Apparent Power - The total power generated or consumed by a device due to real and reactive circuit components.
Measured in VA (volt-amps).
Crest Factor - The ratio of peak current (Apeak) to RMS current (Arms).
Complex Power – the vector sum of the real and reactive power components of a circuit. Measured in VA (volt-amps).
Direct Current (DC) - Current that only ows in one direction. Direct current comes from a polarized source, meaning
one terminal is always at a higher potential than the other. Measured in amps.
Frequency - The number of times a waveform completes a cycle in a period of time. Measured in hertz.
Inrush Current - A term used to describe the current needed to power a load upon start-up. Some loads require a large/
inrush starting current in order to operate.
Linear Power Source – a power source that linearly amplies the input signal using transistors to increase the voltage,
current, and power output of the system.
OC Fold - Over current fold back is a technology used in power sources that keeps output current constant by reducing
the voltage in order to power loads that may have a high inrush current.
Phase Angle – The degree of measurement that corresponds to an AC waveform’s amplitude. Measured from 0 – 360
degrees.
PLC - Programmable Logic Control is an automation method using relay or digital technology.
Power - A generic term used to describe electrical work being done. There are many types of power, including real
power, reactive power, apparent power, and complex power.
Power factor - The ratio of real power (watts) to apparent power (VA). Based on a scale from 0 to 1 to determine how
reactive and resistive a load is.
Reactive Power – The power absorbed by capacitive or inductive elements in a circuit. This power does no work.
Measured in VAR (volt-amps reactive).
Real Power – The power that performs work in a circuit. Measured in watts.
Response Time - The time that is needed to regulate the voltage, current, frequency, and power output when a load is
added to the power source.

© Ikonix USA 3
Safety Agency Listing - A safety mark given to a product that has met stringent benchmarks as classied by the autho-
rized agency.
Steady State Current - A term used to describe the current when the load is running nominally after the inrush current.
Switching Power Source - A power source that uses switching technology (integrated circuits and components) in
order to generate the AC voltage, current, frequency, and power.
Total Harmonic Distortion (THD) - A percentage that is used to identify the degree of the noise/unclean signal in a
power source’s output waveform.
Voltage - The amount of force that is needed to move current from point to point. Measured in volts.
1.3 Safety Symbols
1.3.1 Product Marking Symbols
Product will be marked with this symbol when it is necessary to refer to the
operation and service manual in order to prevent injury or equipment damage.
Product will be marked with this symbol when hazardous voltages may be present.
Product will be marked with this symbol at connections that require earth
grounding.

© Ikonix USA 4
1.3.2 Caution and Warning Symbols
Calls attention to a procedure, practice, or condition that could possibly cause bodily
injury or death.
Calls attention to a procedure, practice, or condition that could possibly cause
damage to equipment or permanent loss of data.
1.4 Safety Precautions
This product and its related documentation must be reviewed for familiarization with safety markings and
instructions before operation. Before applying power, verify that the instrument is set to the correct line
voltage and the correct fuse is installed.
Calls attention to a procedure, practice, or condition that could possibly cause bodily
injury or death.
1.5 Service and Maintenance
User Service
To prevent electric shock do not remove the instrument cover. There are no user serviceable parts inside.
Routine maintenance or cleaning of internal parts is not necessary. Any external cleaning should be done
with a clean dry or slightly damp cloth. Avoid the use of cleaning agents or chemicals to prevent any
foreign liquid from entering the cabinet through ventilation holes or damaging controls and switches, also
some chemicals may damage plastic parts or lettering. Any replacement cables and high voltage
components should be acquired directly from APT or its distributors.
Service Interval
The instrument must be returned at least once a year to an APT authorized service center for calibration
and inspection of safety related components. APT will not be held liable for injuries suered if the
instrument is not properly maintained and safety checked annually.
User Modications
Unauthorized user modications will void your warranty. APT will not be responsible for any injuries
sustained due to unauthorized equipment modications or use of parts not specied by APT. Instruments
returned to APT with unsafe modications will be returned to their original operating condition at the
customer’s expense.

© Ikonix USA 5
2.1 Unpacking and Inspection
Your instrument was shipped in a protective shipping carton designed to protect the instrument through the
shipping process. If the shipping carton is damaged, inspect the contents for visible damage such as dents,
scratches, or broken display. If the instrument is damaged, notify the carrier and APT’s customer support
department. Please save the shipping carton and packing material for the carrier’s inspection. Our customer
support department will assist you in the repair or replacement of your instrument. Please do not return your
product without rst notifying us.
Safe Lifting and Carrying Instructions
Proper methods of lifting and carrying can help to protect against injury. Follow the recommendations below to
ensure that instruments are handled in a safe manner.
• Determine if the instrument can be lifted by one individual or requires additional support.
• Make sure that your balance is centered and your feet are properly spaced, shoulder width apart behind
the instrument.
• Bend at the knees and make sure your back is straight.
• Grip the instrument with your ngers and palms and do not lift unless your back is straight.
• Lift up with your legs, not your back.
• Keep the instrument close to your body while carrying.
• Lower the instrument by bending your knees. Keep your back straight.
2.2 Input Current Considerations
2.3 Preparation For Use
This instrument requires a power source of 100 – 240V AC ± 10%, (47 – 63Hz) single phase for models 8505, 8512,
and 8520. Model 8540 requires a 200 – 240V AC ±10%, (47 – 63Hz) balanced/single phase input source. Please
read the sticker on the rear panel of the instrument to be sure the proper input voltage is provided before power-
ing your instrument ON.
Models 8505 8512 8520 8540
Input Voltage 100 - 240 V ± 10% 200 - 240 V ± 10%
Input Current Max 8A 18A 30A 30A
2. Getting Started
This section contains information for the unpacking, inspection, preparation for use, and storage of your APT product.

© Ikonix USA 6
2.4 Instrument Power Switch
The power switch that is included in the instrument is not considered a disconnecting device. It only
disconnects one current carrying conductor to power o the device. The user should congure the
equipment with an external switch or circuit breaker for disconnecting it from each operating energy supply
source. In compliance with EN61010-1 for permanently connected equipment this switch should meet the
following guidelines.
a. It shall be included in the building installation.
b. It shall be in close proximity to the equipment and within easy reach of the operator.
c. It shall be marked as the disconnecting device for the equipment.
d. It shall not interrupt the protective earth conductor.
e. It shall be in compliance with EN 60947 series, the rated voltage shall be at least equal to the rated
input voltage of the equipment and the rated current shall be equal to the rated input current of the
equipment.
Be sure to select the appropriate wire gauge for use with the APT 8500 AC
power source. The line cord and all applicable xturing must be capable
of handling the output current produced by the AC power source.
2.5 Power Cable
Before connecting power to this instrument, the protective ground (earth)
terminals of this instrument must be connected to the protective conductor
of the line (mains) power cord. The main plug shall only be inserted in a
socket outlet (receptacle) provided with a protective ground (earth) contact.
This protective ground (earth) must not be defeated by the use of an
extension cord without a protective conductor (grounding).
The mains plug is used as the disconnecting device and shall remain readily
operable. The socket-outlet shall be installed near the equipment and shall be
easily accessible.
The main plug shall only be inserted in a socket outlet with a protective
ground (earth) contact. This protective ground must not be defeated by the
use of an extension cord without a protective conductor.
Model 8505 - Do not replace the power supply cord with an improperly rated
cord. For North American: A UL listed and CSA labeled power cord must be
used with the instrument in the United States and Canada. The power cord
must include a NEMA5-15 style male plug, SVT or SJT cord sets, and be rated
for at least 125VAC, 10A, number 16 gauge (or 125VAC, 15A, number 14
gauge) wire or larger, and the length of the cord does not exceed 2 m must
be used. For European: A certied power supply cord not lighter than light PVC

© Ikonix USA 7
sheathed exible cord according to IEC 60227, designation H03 VV-F or H03
VVH2-F
(for equipment mass not exceeding 3 kg), or H05 VV-F or H05 VVH2-F2
(for equipment mass exceeding 3 kg), and be rated for at least 3G 0.75 mm² (for
rated current up to 10 A) or 3G 1.0mm² (for rated current over 10 A up to 16 A)
wire or larger, and the length of the cord does not exceed 2 m must be used.
The following chart lists the wire conguration that must be used for
connection to the input and output of the dierent models:
The rear panel terminal covers should be used to prevent electric shock. The
input/output terminals must be covered when using this product.
2.6 Environmental Conditions
Operating Environment (for indoor use)
Temperatures: 0º - 40º C (32º - 104º F) Relative humidity: 20% - 80%
Altitude: 2,000 meters (6,562 feet) Over Voltage Category: OVC II
Pollution Degree: PD2
Do not block any ventilation openings to prevent overheating of the
equipment. Keep the ventilation slits uncovered during operation. Failure
to do so could cause the instrument to overheat and may damage internal
components.
The instrument should also be protected against temperature extremes
which may cause condensation within the instrument. If the instrument is
used in a matter not specied by the manufacturer, the protection provided
by the instrument may be impaired. The instrument should also be protected
against temperature extremes which may cause condensation within the
instrument.
Storage and Shipping Environment
This instrument may be stored or shipped in environments with the following limits:
Temperature………………..-40ºto +55ºC
Altitude…………………….7,620 meters (25,000 feet)
Model Input Output
8512 12 AWG / 2.5mm² 14 AWG / 1.5 mm²
8520 10 AWG / 4mm² 12 AWG / 2.5 mm²
8540 10 AWG / 4 mm² 8 AWG / 6 mm²

© Ikonix USA 8
2.7 Packaging
Please enclose the instrument with all options, accessories and test leads. All returns must be accompanied
by a return material authorization (RMA) number which is provided by our customer support department.
Failure to ship your instrument without an RMA number will result in additional fees for handling and storage.
APT will not be responsible for any repair costs associated with shipping damage as a result of improper
packaging. The customer is responsible for providing adequate shipping insurance coverage while shipping
an instrument in the event of loss or damage while in transit.
Models 8505 8512 8520 8540
Input
Phase 1Ø2W
Voltage 100 - 240 V ± 10% 200 - 240 V ± 10%
Max. Current 8A 18A 30A 30A
Power Factor (*1) ≥0.93 at Full load ≥0.97 at Full load
Frequency 47 - 63 Hz
AC Output
Power Rating 1Ø2W 500VA 1250VA 2000VA 4000VA
Max.
Current (r.m.s) (*2) 1Ø2W
0 -
155V
5A @ 100V 12.5A @ 100V 20A @ 100V 40A @ 100V
0 - 310V 2.5A @ 200V 6.25A @ 200V 10A @ 200V 20A @ 200V
Inrush Current
(peak) (*3) 1Ø2W
0 -
155V
20A 50A 80A 160A
0 - 310V 10A 25A 40A 80A
Frequency 5.0 - 1200 Hz
Phase 1Ø2W
THD (Total Harmonic Distortion) (*4)
≤0.3% @ 50/60Hz (Full Resistive Load)
≤1.1% @ 5 -1000Hz (Full Resistive Load)
≤1.2% @1001-1200Hz (Full Resistive Load)
Crest Factor ≥3
Line Regulation ±0.1V
Load Regulation (Hardware) (*5) ± (1% of output +0.5V) @ Resistive Load, < 400µS response time
Load Regulation (Software) (*5) ±0.2V, <1S response time
DC Offset ≤±30mV (typical)
3. Specifications and Controls
3.1 Specifications

© Ikonix USA 9
Models 8505 8512 8520 8540
DC Output
Power Rating 300W 750W 1200W 2400W
Max. Current (*2) 0 - 210V 3.0A 7.5A 12.0A 24.0A
0 - 420V 1.5A 3.75A 6.0A 12.0A
Ripple & Noise (rms) (*6) Range L < 700mV < 800mV
H < 700mV < 800mV
Ripple & Noise (p-p) (*6) < 6.0Vp-p < 7.0Vp-p
Settings
Voltage (AC)
Range 0 - 310V, 155/310V Auto Range
Resolution 0.1V
Accuracy ±(0.2% of setting + 3 counts) ±(0.2% of setting
+ 6 counts)
Voltage (DC)
Range 0 - 420V, 210/420V Auto Range
Resolution 0.1V
Accuracy ±(0.2% of setting + 3 counts) ±(0.2% of setting
+ 6 counts)
Frequency
Range DC, 5 - 1200Hz Full Range Adjust
Resolution 0.1Hz at 0.0 - 999.9Hz, 1Hz at 1000 - 1200Hz
Accuracy (*7) ±0.03% of setting (≥15Hz)
±0.3% of setting (<15Hz)
Start Angle
(Programmable Option)
Range 0-359°
Resolution 1°
Accuracy
5Hz-25Hz: ± 2°
25.1Hz-65Hz: ± 4°
65.1Hz-100Hz: ± 8°
100.1Hz-500Hz: ± 32°
500.1Hz-1000Hz: ± 60°
1000Hz-1200Hz: ± 65°
Current Hi Limit (OC
Fold=OFF)
OC Fold Back
(OC Fold = ON)
0 - 155V 0.05 - 5.00A 0.05 - 12.50A 0.05 - 20.00A 0.10 - 40.00A
0 - 310V 0.05 - 2.50A 0.05 - 6.25A 0.05 - 10.00A 0.10 - 20.00A
Resolution 0.01A
Accuracy ± (2.0% of setting + 4 counts)
OC Fold Back Response Time (*8) < 1.4S (30Hz - 1200Hz)
Time
(Programmable Option)
Range
1.0 - 999.9H
1.0 - 999.9M
1.0 - 999.9s
0.2 - 999.9ms
Resolution
0.1h
0.1Min
0.1s
0.1ms
Accuracy
± (0.1% + 0.1 Hour)
± (0.1% + 0.1 Minute)
± (0.1% + 0.1 sec)
± (0.1% + 0.1 ms)
Time Unit Hour, Minute, Second, ms

© Ikonix USA 10
Models 8505 8512 8520 8540
Measurement
Ramp Up
(Programmable Option)
Range 0.1 - 999.9s, 0 = OFF
Resolution 0.1s
Accuracy ± (0.1% + 1 Cycle) at Output frequency ≤ 10Hz
± (0.1% + 0.1 sec) at Output frequency > 10Hz
Frequency
Range 0.0~1200Hz
Resolution 0.1Hz / 1Hz
Accuracy ±0.1Hz @ 5 - 999.9Hz.
±1Hz @ 1000 - 1200Hz
Voltage (AC)
Range 0 - 310V, 155/310V Auto Range
Resolution 0.1V
Accuracy ±(0.2% of reading + 3 counts) at voltage > 5V ±(0.2% of reading + 6
counts) at voltage > 5V
Voltage (DC)
Range 0 - 420V, 210/420V Auto Range
Resolution 0.1V
Accuracy ±(0.2% of reading + 3 counts) at voltage > 5V ±(0.2% of reading + 6
counts) at voltage > 5V
Current (AC, DC)
(*9)
Range L 0.050 - 1.200A 0.050 - 5.000A -
H 1.00 - 6.25A 4.00 - 15.62A 4.00 - 25.00A 0.10 - 50.00A
Resolution L 0.01A -
H 0.01A
Accuracy
L± (1% of reading + 10 counts)
at CF < 3 -
H ± (0.5% of reading + 8 counts) ± (0.5% of reading
+12 counts)
Power (AC, DC)
(10*)
Range L 0.0 - 75.0W 0.0 - 300.0W -
H 60 - 625W 240 - 1563W 240 - 2500W 0 - 5000W
Resolution L 0.1W -
H 1W
Accuracy
L
± (1% of reading
+10 counts)
at PF ≥ 0.35 and
voltage > 5V
± (2% of reading +15 counts) at PF ≥
0.35 and voltage > 5V -
H
± (1% of reading
+5 counts)
at PF ≥ 0.35 and
voltage > 5V
± (1% of reading
+10 counts)
at PF ≥ 0.35and
voltage > 5V
± (1% of reading
+10 counts)
at PF ≥ 0.35 and
voltage > 5V
± (1% of reading +20
counts) at PF ≥ 0.35 and
voltage > 5V
Power Factor
Range 0.000 - 1.000
Resolution 0.001
Accuracy W/VA, Calculated and displayed to three significant digits
Power Apparent
(VA)
(Programmable Option)
Range L 0.0 - 75.0VA 0.0 - 300.0VA -
H 60 - 625VA 240 - 1563VA 240 - 2500VA 0 - 5000VA
Resolution L 0.1VA
H1VA
Calculated Formula V×A, Calculated value

© Ikonix USA 11
Models 8505 8512 8520 8540
Measurement
Peak Current
Measurement
(Programmable Option)
Range 0.0 - 20.0Apk 0.0 - 50.0Apk 0.0 - 80.0Apk 0.0 -160.0Apk
Resolution 0.1A
Accuracy ± (0.5% of reading
+8 counts)
± (0.5% of reading
+12 counts)
Reactive Power
Measurement
(Programmable Option)
Range L 0.0 - 75.0VAR 0.0 - 300.0VAR -
H 60 - 625VAR 240 - 1563VAR 240 - 2500VAR 0 - 5000VAR
Resolution L .01A
H 0.01A
Calculated Formula (VA)2- (W)2
Crest Factor
Measurement
(Programmable Option)
Range 0.00 - 10.00
Resolution 0.01
Calculated Formula Ap / A
Protection
Software OCP (102% < Io ≤110%), >5 second output shut down
>110% of full rated current, <1.5 second output shut down
Output Short Shut Down Speed <1 second
Software OPP ≤110% of full rated current (102% < Po ≤110%), > 5 second output shut down
>110% of full rated current, <1.5 second output shut down
Software OVP Over voltage 105% of full rated voltage
Software VSENSE OVP H When measurement voltage exceeds setting voltage 10V
L When measurement voltage exceeds setting voltage 5V
Software VSENSE LVP H When measurement voltage is lower than setting voltage 10V
L When measurement voltage is lower than setting voltage 5V
Hardware OTP Temperature over 108°C on power component of the PFC and DDC
Temperature over 100°C on heatsink of the power amplifier
Software RCP
(Reverse Current Protection) When reverse power over 5% of full rated power
Hardware FAN FAIL When the cooling fan is blocked and fails
Response Time (Tr/Tf) (*12) 275 - 400us (Typical)
Max DUT Input Capacitance ≤ 7.5uF

© Ikonix USA 12
Models 8505 8512 8520 8540
System Parameters & Features
Calibration 1. Built-in software and external calibrated meters
2. Adjustments made through front panel
Software Feedback Control Method
(ADJ) PID Control - Software Feedback. 12Bit A/D converter drives the amplifier.
Meter Refresh Rate 300ms @ 5.0-39.9Hz
100ms @ 40.0-1200Hz
Operation Key Feature Soft key, Numeric key, Output ON/OFF/Reset key, Rotary Knob
Hardware Interlock Standard Hardware Interlock with direct control of amplifier output relay.
PLC Remote
Two DB9 connectors on the rear panel for Signal Input and Output
Input: Output ON, Output OFF/RESET, Interlock, File Recall M1 through M7, Trigger.
*Minimum 6s pulse width for all Remote Input Keys
Verify: If PLC = Verify when selecting M1-M7, the test file will load but TEST signal will be
required to initiate the output.
Output: Fail, Test-in-Process
*Output relay contact rating is 1A/125V
Output Type AC, DC, AC+DC
Voltage Sense Function (Vs) INT / EXT (Low range: 5V / High range: 10V)
Inrush Current 4 times current rating
Enhanced Overload Capacity Over current 110% can hold for 1000 ms without protection
Interface
(Programmable Option)
Standard: USB & LAN, Optional: GPIB
SCPI bus commands for full instrument control.
Mimic Mode option for APT 6000, 7000 & 300XAC series power sources.
Alarm Volume Setting Range: 0-9; 0=OFF, 1 is softest volume, 9 is loudest volume
Graphic Display 4.3” TFT LCD (resolution: 480 x 272)

© Ikonix USA 13
Models 8505 8512 8520 8540
System Parameters & Features
Models
Efficiency (*11) ≥74% (at Full load) ≥81% (at Full load) ≥84% (at Full load) ≥84% (at Full load)
Count 0 - 50000, 0 = Continuous
Power Up ON, OFF, LAST
Test Results (Programmable Option) List mode only
Over Current Fold Back
Test results are recorded for List Mode only as long as the following conditions for test frequency
and time are met:
5.0 Hz - 10.0Hz Time≥200.1msec
10.1Hz - 100.0Hz Time≥100.1msec
100.1Hz - 1200.0Hz Time≥10.1msec
Lock ON, OFF
Fan Speed Temperature-controlled fan speed
Rack Mount Kit Standard
Rear Output Terminal Block (L,N, G, Ls, Ns)
Rear Input AC Outlet Terminal Block
Memory LIST Mode - 100 x 100 (file x sequence)
MANUAL, STEP and PULSE - 100 files
Sync Signal / Ext Trigger
(Programmable Option) ON / START / END / BOTH / OFF / EVENT, Output Signal 5V, BNC type
Safety CE
Dimension by Model (mm)
W 430 430 430 430
H 88 88 88 176
D 500 500 500 500
Weight 15KG 15KG 15 KG 28KG
Storage Environment -40° to 75°C
Operation Environment (*13) 0-40°C/20-85% RH

© Ikonix USA 14
Models 8505 8512 8520 8540
Standard Accessories
Interlock Disable Key (1505) X1
USB Cable X1
Shorting bar X1
Input/Output Terminal Protection Box X1
Power Cord (125Vac/10A) X1 - - -
Rack Mount (2U) X2 X2 X2 -
Rack Mount (4U) - - - X2
Handle for Rack (2U) X2 X2 X2 -
Why use the term “Counts”?
Associated Power Technologies publishes some specications using COUNTS which allows us to provide
a better indication of the tester’s capabilities across measurement ranges. A COUNT refers to the lowest
resolution of the display for a given measurement range. For example, if the resolution for voltage is 1V then
2 counts = 2V.
Measurement Considerations
*1) 8505, 8512, 8520VA: Input voltage is from 100V to 240V, maximum output power to resistive load, sine
wave, output frequency 25Hz to 1200Hz.
*2) At working voltage 100V / 200V.
*3) The peak capacity of the instrument may vary from 3 to 4 times the max. rated current depending on the
voltage. Please refer the following chart:
*4 Maximum distortion is tested at 100 - 155V (155V Range) and 200 - 310V (310V Range) with maximum
current to a resistive load.
Crest Factor vs Output
Output Voltage %
Crest Factor

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*5 No load to Full load, for output frequencies of <100Hz reference the Load Regulation (Hardware) described
in the table on page 8, Section 3.1.
*6 DC to 300 kHz components at voltage=0V.*7 At voltage > 10V.
*8 At output frequency 30Hz - 1200Hz. Response time < 7S at output frequency 5 - 29.9Hz. Response time
< 2S at DC output. When the OC_FOLD function is enabled, the transient current and power cannot exceed
110% of the total power, otherwise the protection will be triggered.
*9 At the 10% to 100% of the maximum rated current.
*10 At the 10% to 100% of the maximum rated power. If output current exceeds the current measurement L
range, power measurement accuracy follows the H range.
*11 Eciency is tested at input voltage 220VAC with maximum power to a resistive load, output frequency
5Hz to 500Hz.
*12 At 10% to 90% of output voltage.
*13 The operating humidity is non-condensing.
3.2 Output Power, Power Factor and Output Current Considerations
The reactive output power specication of APT 8500 series, models 8505, 8512, and 8520 change depending
on the power factor of the load. While the 8505, 8512 and 8520 are specied as 400VA, 800VA and 1.6kVA units
respectively, they can actually output up to 25% more reactive power based on the power factor of the load, thus
keeping the real power under the specied limit. The reactive power is at its peak when the power factor = 0.8.
See the chart below for more information:
Models 8505 8 512 8520
Output Power at pf ≤ 0.8 500VA @ 400W 1250VA @ 800W 2000VA @ 1600W
Output Power at pf > 0.8 400VA @ 400W 800VA @ 800W 1600VA @ 1600W
Model 8505 Model 8512

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3.3 Instrument Controls
3.3.1 Front Panel Controls (All models)
1 2 3 5
6
4
1. Power Switch - Power switch to power the source ON ( | ) and OFF (0).
2. Graphic Display - 480 x 272 TFT LCD.
3. Rotary Knob - Multifunctional rotary knob.
4. Number Keypad - Numeric and mulifunctional keys.
5. Output Button - This button is used for starting and resetting a test.
6. Output Active LED Indicator - This LED will illuminate whenever the output of the source is active.
Model 8520 Model 8540