Analytic Systems PWS150 User manual

INSTALLATION &
OPERATION MANUAL
101-8128 River Way, Delta B.C. V4G 1K5 Canada T. 604.946.9981 F. 604.946.9983 TF. 800.668.3884 (US/CANADA)
www.analyticsystems.com
An ISO9001 Registered Company Battery Chargers •Inverters •Power Supplies •Voltage Converters
PWS150
AC-SOURCE
POWER SUPPLY

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POWER SUPPLY
IMPORTANT SAFETY INSTRUCTIONS
MEDICAL EQUIPMENT NOTICE
Analytic Systems does not recommend the use of their products in life support
applications where failure or malfunction of this product can be reasonably expected to
cause failure of the life support device or to signicantly affect its safety or effectiveness.
Analytic Systems does not recommend the use of any of its products in direct patient
care. Examples of devices considered to be life support devices are neonatal oxygen
analyzers, nerve stimulators (whether used for anesthesia, pain relief, or other purposes),
auto-transfusion devices, blood pumps, debrillators, arrhythmia detectors and alarms,
pacemakers, hemodialysis systems, peritoneal dialysis systems, neonatal ventilator
incubators, ventilators for both adults and infants, anesthesia ventilators, and infusion
pumps as well as any other devices designated as “critical” by the U.S. FDA.
DANGER: Never alter the AC power cord or plug provided. If it will not t the outlet, use
an approved adapter or have the proper AC power cord installed by a qualied electrician.
Improper installation can result in the risk of electric shock.
WARNING: Do not use this power supply to charge a battery. It does not have the
necessary circuitry on the output to prevent it from overcharging a battery.
SAVE THESE INSTRUCTIONS — This manual contains important safety and operating
instructions for the power supply.
POWER SUPPLY PRECAUTIONS
1. Do not expose power supply to rain or snow unless it is a sealed model.
2. Use of an attachment not recommended or sold by the manufacturer may result in
risk of electric shock, re, or injury to persons.
3. Do not disassemble power supply. If service or repair is required, return it to the
manufacturer or an authorized service center. Incorrect reassembly may result in a risk of
electric shock or re. Voltages in excess of 350 volts are present inside the unit any time
it is plugged into an AC outlet, even if it is switched OFF.
4. To reduce risk of electric shock, disconnect the unit from the AC power source before
attempting any maintenance or cleaning. Switching the unit OFF will not reduce this risk.
5. To reduce risk of electric shock, the power switch must be OFF when connecting
anything to the AC input or DC outputs.
6. The AC outlet that this unit is plugged into must be properly installed and grounded
in accordance with all local codes and ordinances.

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TABLE OF CONTENTS
• Front Cover, Product Photo and Title
• Product Warnings and advisories
• Table of Contents
• Introduction
• Box Contents
• Main Parts
• Operation
• LED Indicators / Fuse Replacement
• Installation
• Troubleshooting
• Specications
• Warranty
Copyright (2005-2019) Analytic Systems Ware (1993) Ltd.
Revised - Apr 22, 2021

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The PWS150 AC-source power supply provides up to 150 continuous watts and 180 peak
watts of precision DC power to up to two connected loads at 12 or 24 VDC.
The PWS150 features advanced Power Factor Correction circuitry on the AC input to use
electricity in the most effective and efcient way possible. This unit will accept from any
standard AC voltage worldwide (85-265 VAC) at 50-60 Hz and 400 Hz. Internally, the recently
updated single board design incorporates modern switch-mode technology for unmatched
efciency and ultra-quiet operation.
Built for maximum safety, unit’s reliability features include spark-free connections, reverse
connection protection, over temperature shutdown with automatic recovery and both input and
output fuses. Additional features include an optional drip shield for wall mounting and bright
LED indicators for monitoring the unit’s operating condition.
Introduction
The box that you’ve received should contain the following:
• One PWS150 Power Supply
• One IEC320-compatible AC input cable
• This manual
• One warranty card
If there is anything is damaged or missing from your box, please contact your dealer or Analytic Systems
for a replacement.
Box Contents

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1. Lighted Power Switch
2. Input Power LED
3. AC Input Connection:
Bulgin IEC320 Flange Mount Inlet
6.3mm
4. Drip Shield
5. Integrated Voltmeter
6. Output 1 and Output 2 LEDs
7. Output Voltage Adjust
8. DC Output Connections: 2 sets
Phoenix VDFK4 Terminal Blocks
(Red: Positive, Black: Negative)
9. Chassis Drounding Stud
3
5
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Main Parts
Front Panel
9
1
2
4
8
6

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Operation
The PWS150 is designed for simple and intuitive operation. Before using the power supply, it
must be properly installed and connected to the load and power source. See Installation for
more details.
OPERATING THE UNIT
1. Move the Power Switch to the ON position.
2. The Power LED will glow green indicating that the unit is recieving the necessary AC
power to operate.
3. The unit will automatically begin supplying the connected load(s) with the voltage listed
on its chassis label.
4. The Output 1 and Output 2 LEDs will also begin glowing indicating the current being
corresponding connected load. See LED Indicators for more details.
ADJUSTING THE OUTPUT VOLTAGE
The output voltage can be adjusted over a range of ±0.6V (or ±1.2V for the 24V model) to suit
your specic needs. To adjust the output voltage:
1. Using a small at-blade screwdriver to access it, rotate the Output Voltage Adjust
potentiometer on the front panel to adjust the voltage.
2. Rotating it clockwise will increase the output voltage. Counterclockwise will decrease
the output voltage.
3. You can check the new output voltage using the integrated digital voltmeter. If your unit
does not have this feature, an external voltmeter/multimeter must be used.
ENDING OPERATION
1. Move the Power Switch to the OFF position.
2. Wait for the all of the LEDs on the unit to stop glowing.
3. Once all of the LEDs are dark, it is safe to disconnect the power source and load from the
power supply.
4. The unit can now be safely serviced or put into storage.

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LED Indicators
The PWS150 features several indicator LEDs on its top panel to display the unit’s operating
condition. Their meanings are detailed below.
POWER:
This LED glows green when the unit is connected to an AC power source and energized.
OUTPUT 1 & OUTPUT 2:
These LEDs indicate the amount of current being drawn by the load connected to the cor-
responding output connector.
••If the Output LED is glowing green,
the load is drawing less than the maximum continuous output current.
••If the Output LED is glowing yellow,
the load is drawing the maximum continuous output current.
••If the Output LED is glowing red,
the load is drawing the maximum peak output current.
Fuse Replacement
The output fuses will blow if the load is connected in reverse or if there is a malfunction other-
wise. In the event the output fuses blow, they will need to be replaced before the unit can be
used.
TO REPLACE THE FUSES
1. Loosen and remove the 8 screws located on the vented side panels. (There are 4 screws on
either side of the unit.)
2. Loosen and remove the 2 screws securing the drip shield to the top panel.
3. Slide the top panel free from the bottom panel to access the internal components.
4. Locate the output fuses. They can be found on the front panel circuit board. They are
directly behind the DC Output connections.
5. Replace the fuses. For more information on the make and model of the replacements output
fuses, see Specications.
6. Return the top panel to its original position and insert and tighten the 8 side panel screws.
7. Return the drip shield to its original position and insert and tighten the 2 screws.

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DC OUTPUT CONNECTION
This unit is equipped with two pairs of Phoenix VDFK4 terminal block connectors to serve as DC
Output Connections. The red output connectors connects to the Positive DC Terminal and the
black, Negative DC Terminal.
Connect the load here using an appropriate gauge of wire for the maximum output current (See
below for the recommended wire gauge and Specications for your unit’s Maximum Output
Current.)
MOUNTING
Mount the unit in a WELL VENTILATED and DRY area with at least one inch (2.54 cm) of clear-
ance surrounding the unit’s extruded vents. Ideally, the unit should be mounted on a vertical
surface with the included drip shield facing upward as shown below.
Installation
AC INPUT CONNECTION
This unit is equipped with a 3-pin Bulgin AC Inlet (6.3mm) Tab Flange Mount to serve as an AC
input connection. Your unit is supplied with an IEC320-compatible cable for connection to an AC
power source, if the supplied cable does not t your AC receptacle, any other IEC320-compatible
cable can be used.
UPUP
Max. Output Current 24.00 A 15.00 A 9.30 A 5.90 A 3.70 A
American Wire Gauge #8AWG #10AWG #12AWG #14AWG #16AWG
Max. Output Current 2.30 A 1.50 A 0.92 A 0.58 A 0.23 A
American Wire Gauge #18AWG #20AWG #22AWG #24AWG #28AWG

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In the event of a malfunction, the table below can be used to troubleshoot the issues and
gure out the next course of action.
Issue Explanation
Unit repeatedly turns OFF The unit’s thermal derating may be causing it turn OFF.
Fix: Check that the unit’s temperature is within its operating range. If
the unit feels signicantly hot, it may need to be remounted for
better ventilation and cooling.
Unit will not turn ON The AC input voltage is too low for proper operation.
Fix: Check that the AC power source is a proper voltage rating for the
power supply. Check that the input wiring and connectors are free
of damage and corrosion.
If the above is in proper working order, the cause is likely an
internal component failure and the unit must be returned to an
authorized service center for repair.
Input fuse blows during
operation
The design of the unit makes it impossible to supply an input over
current by conventional means. The input fuse blowing means there
is an internal component failure
Fix: The unit must be returned to an authorized service center for repair.
Output fuses immediately
blow when unit is turned ON
The load is likely connected to the unit in reverse polarity.
Fix: The output fuses have blown to protect the unit. The unit cannot be
operated until these fuses have been replaced. See Fuse Replace-
ment for details.
Troubleshooting

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Specications
* Specications subjects to change without notice.
Input Specications
Unit Model PWS150
Voltage 85-265 VAC
Current 3A (Max @ 90 VAC in)
Power Factor >0.98 at full load (>0.86 @ 400Hz)
Input Frequency 45 - 405 Hz
Noise on Input < 50 mV
Output Specications
Nominal Voltage 12 VDC 24 VDC
Float Voltage 13.8 ± 0.6 VDC 27.6± 1.2 VDC
Charging Current 12 A (Cont.)/ 15 A (Peak) 6 A (Cont.) / 7.5 A (Peak)
Output Fuse 2x ATL-15 2x ATL-8
Duty Cycle Continuous: 24 hours per day, Peak: 1 minute per hour
Efciency > 90% @ Maximum Output
Mechanical Specications
Width 8.0 in / 20.3 cm
Length 8.8 in / 22.4 cm
Height 2.2 in / 5.6 cm
Clearance 1.0 in/2.5 cm all around
Weight 3.6 lb / 1.6 kg
Mounting Wall mount recommended (includes Drip Shield)
Material & Finish Marine-grade Black Powdered Aluminum
Fasteners 18-8 Stainless Steel
Connectors AC input - Bulgin IEC320 Flange Mount Inlet 6.3mm (supplied with mating cable)
DC Output - 2x Phoenix VDFK4 Terminal Blocks (Red:Positive, Black: Negative)
Environmental and Safety Specications
Operating Temperature Range -25°C to +40°C @ Continuous Output
Humidity 0 - 95% Relative Humidity (non-condensing) with standard conformal coating
Isolation Input-Case & Input-Output:2000 VDC, Output-Case: 1500VDC
Emissions Meets FCC Part 15, Class B
Safety Built to meet CE, UL458 and CSA 22.2.107.1
Typical Service Life > 10 years (87,600 hrs)
Warranty Three years parts and labor