Minuteman MBK-E SERIES User manual

User's Manual
MBK-E SERIES

1
© Copyright Para Systems, Inc., 2003
MBK-E Series User's Manual
1. Introduction 2
2. Controls and Indicators 5
3. Installation 7
4. Operation 9
5. Troubleshooting 11
6. Replacing the Battery 12
7. Obtaining Service 15
8. Specifications 16
9. Configurable Parameters & Settings 17
10. Limited Product Warranty 18
11. Declaration of Conformity 20
English

2
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS !
English
Thank you for purchasing a MINUTEMAN power protection product. It has been
designed and manufactured to provide many years of trouble free service.
Please read this manual before installing your MBK-E Series UPS, models
MBK550E, MBK750E, as it provides important information that should be fol-
lowed during installation and maintenance of the UPS and batteries allowing
you to correctly set up your system for the maximum safety and performance.
Included is information on customer support and factory service if it is required.
If you experience a problem with the UPS please refer to the Troubleshooting
guide in this manual to correct the problem or collect enough information so
that the MINUTEMAN Technical Support Department can rapidly assist you.
This symbol indicates "ATTENTION"
This symbol indicates "Risk of Electrical Shock"
CAUTION! To reduce the risk of electrical shock with the installa-
tion of this UPS equipment and the connected equipment, the user
must ensure that the combined sum of the AC leakage current does
not exceed 3.5mA.
This symbol indicates "Alternating Current Supply"
This symbol indicates "Direct Current Supply"
This symbol indicates "Alternating Current Supply Phase"
This symbol indicates "Equipment Grounding Conductor"

3
CAUTION! To reduce the risk of electrical shock in conditions where
the load equipment grounding cannot be verified, disconnect the UPS
from the AC wall outlet before installing a computer interface cable.
Reconnect the power cord only after all signaling connections are made.
CAUTION! Connect the UPS to a two pole, three wire grounding
AC wall outlet. The receptacle must be connected to the appropriate
branch protection (circuit breaker or fuse). Connection to any other
type of receptacle may result in a shock hazard and violate local elec-
trical codes.
English
NOTICE: This equipment has been tested and found to comply with
the limits for a Class B computing device in accordance with the speci-
fications in Subpart J of Part 15 of FCC Rules and the Class B limits for
radio noise emissions from digital apparatus set out in the Radio Interference of
the Canadian Department of Communications. These limits are designed to
provide reasonable protection against such interference in a residential installa-
tion. This equipment generates and uses radio frequency and if not installed
and used properly, that is, in strict accordance with the manufacturer's instruc-
tions, this equipment may cause interference to radio and television reception.
If this equipment does cause interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged
to try to correct the interference by one or more of the following measures:
!Re-orient the receiving antenna.
!Relocate the computer with respect to the receiver.
!Move the computer away from the receiver.
!Plug the computer into a different outlet so that the computer and receiver
are on different branch circuits.
!Shielded communications interface cables must be used with this product.
WARNING: Changes or modifications to this unit not expressly ap-
proved by the party responsible for compliance could void the user's
authority to operate the equipment.
WARNING: Risk of Electrical Shock. Hazardous live parts inside
these power supplies are energized from the battery even when the
AC input is disconnected.
To de-energize the outputs of the UPS:
1. If the UPS is on press and release the On/Off/Test button.
2. Disconnect the UPS from the AC wall outlet.
3. To de-energize the UPS completely, disconnect the battery.
This Uninterruptible Power Supply (UPS) contains potentially hazardous volt-
ages. DO NOT attempt to disassemble the UPS. This UPS contains no user
serviceable parts. Repairs and battery replacement must be performed by
AUTHORIZED SERVICE PERSONNEL ONLY.

4
English
Para Systems Life Support Policy
As a general policy, Para Systems Inc. (Para Systems) does not recommend
the use of any of its products in life support applications where failure or mal-
function of the Para Systems product can be reasonably expected to cause
failure of the life support device or to significantly affect its safety or effective-
ness. Para Systems does not recommend the use of any of its products in
direct patient care. Para Systems will not knowingly sell its products for use in
such applications unless it receives in writing assurances satisfactory to Para
Systems that (a) the risks of injury or damage have been minimized, (b) the
customer assumes all such risks, and (c) the liability of Para Systems Inc. is
adequately protected under the circumstances.
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, defibrillators, 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 desig-
nated as “critical” by the United States FDA.
Hospital grade wiring devices and leakage current may be ordered as options
on many PARA SYSTEMS UPS systems. PARA SYSTEMS does not claim
that units with this modification are certified or listed as Hospital Grade by
PARA SYSTEMS or any other organization. Therefore, these units do not
meet the requirements for use in direct patient care.
After removing your MINUTEMAN UPS from its carton, it should be inspected
for damage that may have occurred in shipping. Immediately notify the carrier
and place of purchase if any damage is found. Warranty claims for damage
caused by the carrier will not be honored. The packing materials that your UPS
was shipped in are carefully designed to minimize any shipping damage. In the
unlikely case that the UPS needs to be returned to MINUTEMAN, please use
the original packing material. Since MINUTEMAN is not responsible for ship-
ping damage incurred when the system is returned, the original packing mate-
rial is inexpensive insurance. PLEASE SAVE THE PACKING MATERIALS!
Receiving Inspection

5
On-Line On-Battery Boost
English
On-Line/On-Battery/Boost LED
Overload LED
Weak/Bad Battery LED
On/Off/Test Button
Fault LED
Press and release the ON/OFF/Test Button after 1 beep to turn the
UPS ON or OFF (see section 4).
The On-Line/On-Battery and Boost (green) LED illuminates in a steady state
when the UPS is on and supplying AC power to the load. The LED blinks and
the audible alarm sounds, when supplying battery power to the load. The LED
blinks and no audible alarm when the UPS is in the boost mode.
The Fault (red) LED illuminates when the UPS has detected an
internal fault. (see section 5)
The Overload (yellow) LED illuminates when the loads connected to
the UPS exceeds the UPS power rating. (see section 5)
The Weak/Bad Battery (red) LED illuminates when the UPS has
detected that the batteries are Weak/Bad. Battery replacement might
be required. (see section 5)

6
REAR PANEL
English
5
4
3
2
19
8
67
1. The Information/Rating Label.
2. The Battery Backup and Surge output power receptacles are NEMA 5-15R
type.
3. The USB Communications Interface Port is for UPS monitoring and control.
4. The Surge ONLY output power receptacles are NEMA 5-15R type.
5. The Dipswitches are for setting the Inverter output voltage and the transfer
set points.
6. The input power cord has a NEMA 5-15P Plug.
7. The input circuit breaker will trip in the event the load exceeds the UPS’s
power rating.
8. The RJ11/RJ45 modular connectors are used for 10 Base-T Network/Fax/
Modem protection.
9. The Site Wiring Fault (SWF) LED illuminates when the UPS detects an
improperly wired AC wall outlet.

7
INSTALLATION PLACEMENT
The MBK-E series is intended to be install in a temperature controlled environ-
ment that is free of conductive contaminants. Select a location which will pro-
vide good air circulation for the UPS at all times. Avoid locations near heating
devices, water or excessive humidity, or where the UPS is exposed to direct
sunlight. Route power cords so they cannot be walked on or damaged.
Operating Temperature (Maximum): 0 to 40 degrees C (+32 to 104 degrees F)
Operating Elevation: 0 to 3,000m (0 to 10,000 ft)
Operating and Storage Relative Humidity: 95%, non-condensing
Storage Temperature: -15 to +45 degrees C (+5 to +113 degrees F)
Storage Elevation: 0 to 15,000m (0 to +50,000 ft)
INSTALLATION
Be sure to read the installation placement and all the cautions before installing
the UPS. Place the UPS in the final desired location and complete the rest of
the installation procedure. USE CAUTION: The UPS is heavy. Use the
appropriate number of personnel when installing the UPS.
CONNECTING YOUR EQUIPMENT
Plug the equipment into the output receptacles on the rear panel of the UPS.
Do not use extension cords, adapter plugs, power strips or surge strips on the
output of the UPS. Ensure that you do not exceed the maximum output rating
of the UPS (refer to the UPS's back panel or the Electrical Specifications in this
manual).
English
CAUTION! DO NOT connect a laser printer to the output receptacles on the
UPS, unless the UPS is rated 2000VA or greater. A laser printer
draws significantly more power when printing than at idle and
may overload the UPS.

8
English
DO NOT plug Power Strips or Surge Protection Devices into
the ”Battery Backup” Receptacles on the UPS. Plugging Power
Strips or Surge Protection Devices into the “Battery Backup”
Receptacles may cause internal damage to the UPS, the Power
Strip, or the Surge Protection Device.
WARNING!
CHARGING THE BATTERY
The MBK-E Series UPS will charge the internal batteries whenever the UPS is
connected to an AC source. It is recommended that the UPS's batteries be
charged for a minimum of 4 hours before use. The UPS may be used
immediately, however, the “ON Battery” runtime may be less than normally
expected.
CAUTION! If the UPS indicates a Site Wiring Fault (SWF), have a
Qualified Electrician correct the problem.
Connecting to the Communications Port is optional. The UPS works
properly without a connection.
NOTE:
CHECKING THE SITE WIRING FAULT
After plugging in the UPS, check the Site Wiring Fault (SWF) LED on the rear
panel of the UPS. If the SWF LED is illuminated, the UPS is plugged into an
improperly wired AC outlet.
COMMUNICATIONS PORT CONNECTION (OPTIONAL)
MINUTEMAN Power Monitoring Software and interface cables kits can be used
with the MBK-E Series UPS. Use only MINUTEMAN or MINUTEMAN ap-
proved interface cables with these UPSs. Connect the USB interface cable to
the USB communications port on the rear panel of the UPS. Connect the other
end of the cable to the device that will be monitoring/controlling the UPS.
CONNECTING THE UPS TO AN AC SOURCE
Plug the UPS into a two pole, three wire, grounded receptacle only. Do not use
extension cords, adapter plugs, power strips or surge strips.
NOTE: If the UPS is going to be out of service or stored for a prolonged period
of time, the batteries must be recharged for at least twenty-four hours
every ninety days.
Connecting to the Network/Fax/Modem protection socket connection
is optional. The UPS works properly without a connection.
NOTE:
NETWORK/FAX/MODEM PROTECTION CONNECTION (OPTIONAL)
Connect a 10 Base-T network, Fax or Modem line to the RJ11/RJ45 protection
sockets on the rear panel of the UPS. This connection will require another
length of telephone or network cable. The cable coming from the telephone
service or networked system is connected to the port marked “IN”. The equip-
ment to be protected is connected to the port marked "OUT".

9
English
TURNING THE UNIT ON/OFF
ON / OFF / Test Button
SELF TEST
Press and release the ON/OFF/Test Button after one beep to turn the UPS ON
and supply power to the load. The load is immediately powered while the UPS
runs a two-second self test. Press and release the ON/OFF/Test Button after
one beep to turn the UPS OFF. The UPS will continue to charge the batteries
whenever it is plugged into an AC outlet and there is AC present.
The self test feature is useful to verify the correct operation of the UPS and the
condition of the batteries. With the UPS in the normal On-Line mode, press
and hold the ON/OFF/Test Button for approximately 4 seconds (four beeps),
then release the button. The UPS will perform a ten-second self test. During
the self test, the UPS will switch to battery power and the On-Battery LED will
blink and the audible alarm will sound. The length of the test that is automati-
cally performed every two weeks is longer than the start-up or user invoked
test. This test will run for approximately fifteen-seconds to measure the battery’s
capability to provide an acceptable amount of runtime. If the UPS fails a self
test, one of the LEDs will remain illuminated indicating the type of problem.
Note: The UPS will automatically perform a self test on start-up and every two
weeks.
DIP SWITCH SETTINGS
The DIP Switch setting may be changed by the user to set the desired Inverter
(on battery) output voltage and the Low voltage transfer set points. The DIP
Switches must be set to the desired Inverter output voltage and the Low voltage
transfer set points then, the UPS must be turned OFF and restarted to reconfigure
the microprocessor and save the changes. The Inverter (on battery) output
voltage setting can be either 120VAC (default) or 127VAC. Changing the In-
verter output voltage to 127VAC, will also change the Overvoltage set point from
132VAC (default) to 140VAC. The Low voltage transfer set points can be changed
to 85VAC (default) or 80VAC or 75VAC.
Inverter output voltage
Switch 1
120V
127V
Low voltage transfer
Switch 2 3
75V
80V
85V

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English
COMMUNICATIONS PORT
The MBK-E series comes standard with a USB communication port.
NOTE: See the SentryII CD for the Power Monitoring Software installation.
See the USB Driver CD for the USB installation.
ALARMS
ON BATTERY
When the UPS is operating on the batteries, the On-Battery LED will blink and
the audible alarm will sound once every 10-seconds. The alarm will stop once
the UPS returns to the On-Line operation.
UPS FAULT
When the UPS detects a hardware fault, the Fault LED will illuminate and the
UPS will sound a constant alarm. The fault condition, in some instances, may
be reset by turning the UPS OFF and then ON (see section 5 Troubleshooting).
OVERLOAD
When the amount of load attached to the UPS exceeds its power rating, the
Overload LED will illuminate and the UPS will sound a constant alarm. This
alarm will remain on until the excess load is removed or the UPS’s self protec-
tion circuit shuts the UPS down.
WEAK/BAD BATTERY
The UPS automatically tests the battery’s condition and will illuminate the Weak/
Bad Battery LED and sound the alarm. This alarm will be repeated until the
batteries pass a self test. If the battery is bad or disconnected, the Weak/Bad
Battery LED will illuminate and the alarm will beep three times every five-min-
utes until the battery is reconnected or replaced. If the battery is weak, the
Weak/Bad Battery LED will illuminate and the alarm will beep one time every
ten-minutes until the battery is recharged or replaced. It is recommended that
the UPS be allowed to charge overnight before performing a battery test to
confirm a Weak/Bad Battery condition.
NOTE: If the UPS has a Weak/Bad Battery Alarm after reconnecting of replac-
ing the batteries, the user must initiate a self test to clear the Weak/Bad Bat-
tery Alarm. To initiate a self test see section 4 "SELF TEST".
LOW BATTERY WARNING
The UPS will sound two beeps every five-seconds when the battery reserve
runs low. This condition will continue until AC returns or the UPS shuts down
from battery exhaustion.
FAN LOCK
AC Mode: If the fan becomes locked, the alarm will beep one time every two-
seconds until the fan is unlocked.
Battery Mode: If the fan becomes locked, the alarm will beep one time every
two-seconds for thirty-seconds, then the output will turn off, the alarm will sound
continuously and the Fault LED will illuminate. The UPS must be turned off and
the fan unlocked to clear the Fan lock Alarm.

11
English
Possible Cause
Symptom What To Do
Press and release the On/Off/
Test button to start UPS
On/Off/Test button not
pushed
UPS will not turn on
Reset circuit breaker by
pressing the plunger back in.
If the AC circuit breaker trips
after UPS starts up, reduce
the load on the UPS
UPS operates in
battery mode only,
even though there is
normal AC present
Input AC circuit breaker is
tripped
UPS has detected an
internal fault
Call for service
Fault LED is
illuminated
The On-line/On-
Battery LED is
illuminated, but
there is no output
Incorrect service wiring
Disconnect the computer
cable from the UPS and press
the On button. If UPS works
normally, the software has
control of the UPS
The UPS is being
controlled via its
communications port
Site Wiring Fault
LED is illuminated
Have a Qualified Electrician
correct the service wiring
The batteries may be weak
or at the end of useful
service life
Charge the batteries for 8
hours and retest. If the runtime
is still less than expected, the
batteries may need to be
replaced, even though the
Weak/Bad Battery LED is not
illuminated
UPS does not
provide expected
runtime
Weak/Bad Battery
LED is illuminated
Overload LED is
illuminated and a
constant alarm
The On-Line LED is
blinking and the au-
dible alarm is silent
UPS occasionally
emits a beep
Weak/bad batteries or bad
connections at the battery
Normal operation
The load has exceeded the
UPS's capacity
The UPS is in the Boost
mode
Check battery connections,
charge the batteries for 8
hours, replace the batteries
The UPS is performing its
intended function
Check the specifications (see
section 8). Remove part of the
load
The UPS is performing its
intended function

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English
REPLACING THE BATTERY
The MBK-E Series UPS has an easy to replace hot-swappable batteries. Please
read all of the WARNING and CAUTIONS before attempting to service the
batteries.
NOTE: If there is a power interruption while replacing the hot-swappable
batteries, with the UPS on, the load will not be backed up.
WARNING! This Uninterruptible Power Supply contains potentially hazardous
voltages. Do not attempt to disassemble the UPS beyond battery
replacement procedures below. This UPS contains no
user serviceable parts. Repairs and Battery replacement must
be performed by AUTHORIZED SERVICE PERSONNEL ONLY.
Do not open or mutilate batteries. Released electrolyte is harmful
to the skin and eyes and may be toxic.
CAUTION:
(AUTHORIZED SERVICE PERSONNEL ONLY)
CAUTION: Do not dispose of batteries in a fire. The batteries may explode.
The batteries in this UPS are recyclable. Dispose of the batteries
properly. The batteries contain lead and pose a hazard to the
environment and human health if not disposed of properly. Refer
to local codes for proper disposal requirements or return the
battery to MINUTEMAN.
Although battery system voltages are only 12VDC and 24VDC
the battery system can still present a risk of electrical shock.
The current capability of a battery is sufficient to burn wire or tools
very rapidly, producing molten metal. Observe these precautions
when replacing the batteries:
1. Remove watches, rings, or other metal objects.
2. Use hand tools with insulated handles.
3. Wear protective eye gear (goggles), rubber gloves and boots.
4. Do not lay tools or other metal parts on top of batteries.
5. Disconnect the charging source prior to connecting or
disconnecting the battery terminals.
6. Determine if the battery is inadvertently grounded. If the
battery is, remove the source of the grounding. Contact with
any part of a grounded battery can result in an electrical shock.
The likehood of such shock will be reduced, if such grounds
are removed during installation and maintenance.
CAUTION:

13
English
BATTERY REPLACEMENT PROCEDURE
PLEASE READ THE CAUTIONS AND WARNINGS BEFORE ATTEMPTING
TO REPLACE THE BATTERIES
Hot-swappable batteries mean that the batteries can be replaced without
powering down the whole UPS system.
NOTE: If there is a power interruption while replacing the hot-swappable
batteries, with the UPS on, the load will not be backed up. To
hot-swap the batteries start with step number 6.
1. Turn off the equipment that is plugged into the output receptacles of the
UPS.
2. Press and release the On/Off/Test button on the front panel to turn the UPS
OFF.
3. Unplug the UPS's AC power cord from the AC wall outlet.
4. Unplug the equipment from the output receptacles of the UPS.
5. Unplug the computer interface cable from the rear panel of the UPS.
6. Remove the retaining screws from the bottom of the front panel of the UPS.
7. Grasp the bottom of the front panel and gently pull the front panel off the
UPS.
8. Lay the front panel on top of the UPS.
MBK550E MBK750E
Battery
Model # 1-12V7Ah 2-12V7Ah
Model #
Replace batteries with the same number and type as originally
installed in the UPS. These batteries have pressure operated vents.
These UPSs contain sealed non-spillable lead acid batteries.
CAUTION:
Panasonic
Part # LC-R127LC-R127R2
Yuasa Part # NP 7-12NP 7-12

14
English
9. Disconnect the positive (red) wire from the battery positve terminal.
10. Disconnect the battery negative (black) wire from the battery negative
terminal.
NOTE: Use CAUTION, do not touch the battery positive wire to the battery
negative wire.
11. Remove the battery bracket retaining screw and slide the battery bracket
upwards.
12. Using the pull tab, pull the batteries out completely. DO NOT pull the
batteries out by pulling the battery jumper wires.
13. Remove the battery jumper wire.
14. Verify proper polarity. Re-install the battery jumper wire on the new
batteries.
15. Slide the new batteries into the battery compartment.
16. Re-install the battery bracket and the battery bracket retaining screw.
17. Verify proper polarity. Reconnect the battery negative (black) wire to the
battery negative terminal.
18. Verify proper polarity. Reconnect the battery positive (red) wire to the
battery positive terminal. Some sparking may occur, this is normal.
19. Re-install the front panel of the UPS.
20. Re-install the retaining screws for the front panel of the UPS.
21. Dispose of the old batteries properly at an appropriate recycling facility or
return them to the supplier in the packing material for the new batteries.
22. The UPS is now ready for the normal start-up operation.
NOTE: If the UPS has a Weak/Bad Battery Alarm after replacing the batteries,
the user must initiate a self test to clear the Weak/Bad Battery Alarm. To
initiate a self test see section 4 "SELF TEST".

15
English
IF THE UPS REQUIRES SERVICE
1.Use the TROUBLESHOOTING section to eliminate obvious causes.
2.Verify there are no circuit breakers tripped. A tripped circuit breaker is the
most common problem.
3.Call your dealer for assistance. If you cannot reach your dealer, or if they
cannot resolve the problem call or fax MINUTEMAN Technical Support at the
following numbers; Voice phone [phone], FAX line [phone] or
visit our Web site at www.minutemanups.com the "Discussion Board". Please
have the following information available BEFORE calling the Technical
Support Department.
A. Your name and address.
B. Where and when the unit was purchased.
C. All of the model information on the rear panel of your UPS.
D. Any information on the failure, including LEDs that may be illuminated.
E. A description of the protected equipment, including model numbers if
possible.
F. A technician will ask you for the above information and, if possible, help
solve your problem over the phone. In the event that the unit requires
factory service, the technician will issue you a Return Material
Authorization Number (RMA #).
G. If the UPS is under warranty, the repairs will be done at no charge. If not,
there will be a charge for repair.
4. Pack the UPS in its original packaging. If the original packaging is no longer
available, ask the Technical Support Technician about obtaining a new set. It
is important to pack the UPS properly in order to avoid damage in transit.
Never use Styrofoam beads for a packing material.
A. Include a letter with your name, address, day time phone number, RMA
number, a copy of your original sales receipt, and a brief description of the
problem.
5. Mark the RMA # on the outside of all packages. The factory cannot accept
any package without the RMA # marked on the outside.
6. Return the UPS by insured, prepaid carrier to:
Para Systems Inc.
MINUTEMAN UPS
1455 LeMay Drive
Carrollton, TX 75007
ATTN: RMA # _______

16
English
Default 120VAC (User selectable at 120/127VAC)
2-4 years, depending on discharge cycles and ambient temp
550VA/330W 750VA/450W
500 J
0 ns (instantaneous) normal mode; <5 ns common mode
<5%
Normal and common mode EMI/RFI suppression
1-12V7Ah 2-12V7Ah
Audible noise at 1 m (3 ft.)
Electromagnetic immunity
<45 dBA
Runtime: Full Load
IEC 801-2 level IV, 801-4 level IV, 801 -5 level III
Runtime: Half Load
10 Base-T surge protection let-
through (as a percentage of
an applied +/-6 kV 1.2/50 us,
500 a 8/20 uS test)
Telephone line surge protec-
tion let-through (as a percent-
age of an applied +/-6 kV 1.2/
50 us, 500a 8/20 uS test)
Typical recharge time
Typical battery life
Battery type: Sealed, non-
spillable, maintenance free,
lead-acid
<1%
<5%
8 hours from total discharge
Noise filter
Surge voltage let-through (as
a percentage of an applied
ANSI C62.41 Cat. A +/-6 kV)
Surge response time
Surge current capability
(one time, 8/20 uS waveform) 6500 Amps total
Surge energy rating (one time,
10/1000 uS waveform)
Protection
On-battery waveshape
Over current, short circuit protected and latching shutdown
Simulated Sine Wave
On-battery frequency 50/60 Hz, +/-.5 Hz, unless synchronized to utility
On-battery output voltage
Maximum load
2-6 mS typical
50 or 60 Hz, +/-6Hz
Resettable circuit breaker
50 or 60 Hz, autosensing
0 - 150VAC
120VAC setting (default):85-132VAC, Selectable: 75/80-132VAC
127VAC setting: 85-140VAC, Selectable: 75/80-140VAC
120VAC setting: 105-132VAC, 127VAC setting: 105-140V
Transfer time
Frequency limits (AC Mode)
Input protection
Nominal input frequency
Output voltage (AC Mode)
Input voltage (AC Mode)
Acceptable Input voltage
MBK750E
MBK550E
MODEL NUMBER
7.56 x 12.56 x 6.38"
192 x 319 x 162 mm
18.74 (22)lb
8.5 (9.7)Kg
25.8 (29)lb
11.7 (12.9)Kg
Weight - Net (Shipping)
Size - Net
H X D X W
UL1778, cUL (CSA 22.1)
FCC Class B, CE certified
Safety and approvals
EMC Verification
13 x 18.9 x 11.4"
330 x 480 x 290 mm
Size - Shipping
H X D X W
11-Minutes 19-Minutes
5-Minutes
3-Minutes

17
English
(These items may require optional software or hardware)
Function Factory
Default
Description
User Choices
Set
inverter
output
voltage
Set
audible
alarm
state
Enable/
Disable
auto
restart
Battery
life in
days
Battery
install
date
UPS ID MBK-E
Date of
manufacture
1826
Enabled
Enabled
120VAC
Up to 64
characters
to define
the UPS
Date of battery
replacement -
month/day/year
XX/XX/XXXX
Up to 5
characters
Enable
or
Disable
Enabled, at
low battery,
disabled
120, 127VAC
At first battery replacement, reset
to reflect actual number of days
experience in your environment or
leave factory default
Enter the current date when
replacing batteries
Use this function to uniquely
identify the UPS in your network
configuration
Changes output voltage during
battery mode operations
Enabled - the UPS will emit a
short beep when in the battery
mode. At Low Battery the UPS
will emit two beeps from low
battery warning until shutdown.
Disabled - Use only when software
is controlling the UPS or to
silence the alarm
When enabled, the UPS will
automatically restart from a low
battery shutdown when normal AC
returns

18
English
Para Systems Inc. (Para Systems) warrants this equipment, when properly
applied and operated within specified conditions, against faulty materials (ex-
cluding batteries) or workmanship for a period of three years from the date of
purchase. Para Systems Inc. (Para Systems) warrants the batteries for a
period of two years from the date of purchase. For equipment sites within the
United States and Canada, this warranty covers repair or replacement of defec-
tive equipment at the discretion of Para Systems. Repair will be from the
nearest authorized service center. Replacement parts and warranty labor will
be borne by Para Systems. For equipment located outside of the United States
and Canada, Para Systems only covers faulty parts. Para Systems products
repaired or replaced pursuant to this warranty shall be warranted for the unex-
pired portion of the warranty applying to the original product. This warranty
applies only to the original purchaser who must have properly registered the
product within 10 days of purchase.
The warranty shall be void if (a) the equipment is damaged by the customer, is
improperly used, is subjected to an adverse operating environment, or is oper-
ated outside the limits of its electrical specifications; (b) the equipment is re-
paired or modified by anyone other than Para Systems or Para Systems-ap-
proved personnel; or (c) has been used in a manner contrary to the product’s
User's Manual or other written instructions.
Any technical advice furnished before or after delivery in regard to use or appli-
cation of Para Systems’s equipment is furnished without charge and on the
basis that it represents Para Systems’s best judgment under the circumstances,
but it is used at the recipient’s sole risk.
EXCEPT AS PROVIDED HEREIN, PARA SYSTEMS MAKES NO WARRAN-
TIES, EXPRESSED OR IMPLIED, INCLUDING WARRANTIES OF MERCHANT-
ABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Some states do not
permit limitation of implied warranties; therefore, the aforesaid limitation(s) may
not apply to the purchaser.

19
English
EXCEPT AS PROVIDED ABOVE, IN NO EVENT WILL PARA SYSTEMS BE
LIABLE FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUEN-
TIAL DAMAGES ARISING OUT OF THE USE OF THIS PRODUCT, EVEN IF
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Specifically, Para Sys-
tems is not liable for any costs, such as lost profits or revenue, loss of equip-
ment, loss of use of equipment, loss of software, loss of data, cost of substi-
tutes, claims by third parties, or otherwise. The sole and exclusive remedy for
breach of any warranty, expressed or implied, concerning Para Systems’s prod-
ucts and the only obligation of Para Systems hereunder, shall be the repair or
replacement of defective equipment, components, or parts; or, at Para Systems’s
option, refund of the purchase price or substitution with an equivalent replace-
ment product. This warranty gives you specific legal rights and you may also
have other rights which vary from state to state.
Longer term and F.O.B. job site warranties are available at extra cost. Contact
Para Systems (1-972-446-7363) for details.
LIMITED PRODUCT WARRANTY
(Continued)