MK Products CobraTurn T-30 User manual

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CobraTurn®T-30
Digital Turntable
Owners Manual
Product
Manual
Serial
Voltage Rating
Revision
Model
CobraTurn® T-30
Digital Turntable
091-0748
19100001
120 VAC
Nov. 2022/Rev C
125-001
Scan for online
version

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Page 2
Table of Contents
Section A – Safety Considerations.................................................... 4-6
Section B – Specifications ............................................................. 7
Unit Specifications..........................................................................7
Load Specifications .........................................................................7
Dimensions ................................................................................7
Section C – Operation ......................................................8
Initial Setup..................................................................8
Operating Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Weld Ground 5 AMP Fuse......................................................10
Circuit Breaker ..............................................................10
Calibration Procedure .........................................................10
Display Messages ............................................................10
Controls and Connections .....................................................11
Section D – Accessories ..............................................................11
Section E – Troubleshooting .......................................................... 12
Section F – Appendices ....................................................12
Main Assembly Parts List ..................................................................12
Main Assembly ........................................................................... 13
Front Panel Assembly/Parts List........................................................... 14
Electrical ................................................................................. 15
Safety Warnings........................................................16-17
Warranty ...............................................................18

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Thank you
For selecting a quality product. We want you to take pride in operating this product. . .
as much pride as we have in bringing you quality products Since 1966.
BEFORE USING THIS EQUIPMENT, PLEASE READ THE IMPORTANT SAFETY
CONSIDERATIONS PROVIDED FOR YOUR PROTECTION
In support of our ongoing commitment to a greener planet, a printed manual is not included with your
purchase. To view the PDF version of the Owner’s Manual, please visit our website at www.mkproducts.
com and click on the support tab. We recommend you read the Owner’s Manual completely before
attempting to use this equipment.
If you’d prefer a printed copy of the Owner’s Manual, the PDF version found on our website is in a printable
format. A printed copy of the manual can also be requested from the factory free of charge. To request a
copy, contact our Sales & Technical Department via email at s[email protected] or call 949-863-1234 or
1-800-787-9707 M-F, 5am to 5pm, PST.
Please examine carton and equipment for damage immediately
All merchandise is sold FOB MK Products® Inc., Irvine, California. Title to the merchandise transfers to
the receiving party at the time carrier accepts shipment. In the event of loss or damage, it is the receiving
party’s responsibility to file a claim.
For assistance in reporting and filing a claim, contact MK Products® Customer Service
Department within 15 calendar days from date of shipment.
For Your Records
Date Purchased
Serial Number
Distributor & Location

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Page 4
SAFETY CONSIDERATIONS
ELECTRIC ARC WELDING EQUIPMENT
CAUTION: READ BEFORE ATTEMPTING INSTALLATION, OPERATION OR
MAINTENANCE OF THIS EQUIPMENT
- INTRODUCTION
Thisequipmentis intendedforultimateapplicationby commercial/industrial
users and for operation by persons trained and experienced in the use and
maintenance of welding equipment. Operation should not be undertaken
without adequatetrainingin theuse ofsuch equipment. Training is available
from many public and private schools or similar facilities.
Safe practices in the installation, operation and maintenance of this
equipment requires proper training in the art, a careful study of the
information provided with the equipment, and the use of common sense.
Rules for safe use are generally provided by suppliers of welding power
sources, compressed gas suppliers, and electrode suppliers. Careful
compliance with these rules will promote safe use of this equipment.
The following Safety Rules cover some of the more generally found
situations. READ THEM CAREFULLY. In case of any doubt, obtain qualified
help before proceeding.
- GENERAL PRECAUTIONS
A. Burn Prevention
ELECTRIC ARC WELDING PRODUCES HIGH INTENSITY HEAT AND
ULTRAVIOLET RADIANT ENERGY WHICH MAY CAUSE SERIOUS AND
PERMANENT EYE DAMAGE AND WHICH MAY DAMAGE ANY EXPOSED
SKIN AREAS.
Wear a helmet with safety goggles or glasses with side shields underneath,
appropriate filter lenses or plates (protected by clear cover glass). This
is a must for welding or cutting (and chipping) to protect the eyes from
radiant energy and flying metal. Replace cover glass when broken, pitted,
or spattered.
Medical first aid and eye treatment. First aid facilities and a qualified first
aid person should be available for each shift unless medical facilities are
close by for immediate treatment of flash burns of the eyes and skin burns.
Wear protective clothing - leather (or asbestos) gauntlet gloves, hat, and
high safety-toe shoes. Button shirt collar and pocket flaps, and wear culess
trousers to avoid entry of sparks and slag.
Avoid oily or greasy clothing. A spark may ignite them.
Flammable hair preparations should not be used by persons intending to
weld or cut.
Hot metal such as electrode stubs and work pieces should never be handled
without gloves.
Ear plugs should be worn when working on overhead or in a confined space.
A hard hat should be worn when others work overhead.
B. Toxic Fume Prevention
WARNING: The use of this product may result in exposure to chemicals
known to the State of California to cause cancer and birth defects or other
reproductive harm.
Adequate ventilation. Severe discomfort, illness or death can result from
fumes, vapors, heat, or oxygen enrichment or depletion that welding (or
cutting) may produce. Prevent them with adequate ventilation. NEVER
ventilate with oxygen.
Lead-, cadmium-, zinc-, mercury-, beryllium-bearing and similar materials,
when welded or cut, may produce harmful concentrations of toxic fumes.
Adequate local exhaust ventilation must be used, or each person in the
area, as well as the operator, must wear an air-supplied respirator. For
beryllium, both must be used.
Metals coated with or containing materials that emit toxic fumes should
not be heated unless coating is removed form the work surface, the area
is well ventilated, or the operator wears an air-supplied respirator.
Work in a confined space only while it is being ventilated and, if necessary,
while wearing an air-supplied respirator.
Gas leaks in a confined space should be avoided. Leaked gas in large
quantities can change oxygen concentration dangerously. Do not bring
gas cylinders into a confined space.
Leaving confined space, shut OFF gas supply at source to prevent possible
accumulation of gases in the space if downstream valves have been
accidentally opened or left open. Check to be sure that the space is safe
before reentering it.
Vapors from chlorinated solvents can be decomposed by the heat of the
arc (or flame) to form PHOSGENE, a highly toxic gas, and other lung
and eye irritating products. The ultraviolet (radiant) energy of the arc
can also decompose trichloroethylene and perchloroethylene vapors
to form phosgene. DO NOT WELD or cut where solvent vapors can
be drawn into the welding or cutting atmosphere or where the radiant
energy can penetrate to atmospheres containing even minute amounts of
trichloroethylene or perchloroethylene.
C. Fire and Explosion Prevention
Causes of fire and explosion are: combustibles reached by the arc, flame,
flying sparks, hot slag, or heated material, misuse of compressed gases
and cylinders, and short circuits.
BE AWARE THAT flying sparks or falling slag can pass through cracks, along
pipes, through windows or doors, and through wall or floor openings, out
of sight of the goggled operator. Sparks can fly many feet.
To prevent fires and explosion:
Keep equipment clean and operable, free of oil, grease, and (in electrical
parts) of metallic particles that can cause short circuits.
If combustibles are in area, do NOT weld or cut. Move the work if practicable,
to an area free of combustibles. Avoid paint spray rooms, dip tanks, storage
areas, ventilators. If the work cannot be moved, move combustibles at least
 feet away, out of reach of sparks and heat; or protect against ignition
with suitable and snug-fitting, fire-resistant covers or shields.
Walls touching combustibles on opposite sides should not be welded on
(or cut). Walls, ceilings, and floor near work should be protected by heat-
resistant covers or shields.
Fire watcher must be standing by with suitable fire extinguishing equipment
during and for some time after welding or cutting if:
. Appreciable combustibles (including building construction) are within
 feet.
. Appreciable combustibles are further than  feet, but can be ignited
by sparks.
. Openings (concealed or visible) in floors or walls within  feet may
expose combustibles to sparks.
. Combustibles adjacent to walls, ceilings, roofs, or metal partitions can
be ignited by radiant or conducted heat.
Hot work permit should be obtained before operation to ensure supervisor’s
approval that adequate precautions have been taken.
After work is done, check that area is free of sparks, glowing embers, and
flames.
An empty container that held combustibles, or that can produce flammable or
toxic vapors when heated, must never be welded on or cut, unless container
has first been cleaned in accordance with industry standards.
This includes: a thorough steam or caustic cleaning (or a solvent of water
washing, depending on the combustible’s solubility), followed by purging and
inerting with nitrogen or carbon dioxide, and using protective equipment.
Water-filling just below working level may substitute for inerting.
A container with unknown contents should be cleaned (see paragraph above).
Do NOT depend on sense of smell or sight to determine if it is safe to weld or cut.
Section A – Safety

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Hollow castings or containers must be vented before welding or cutting.
They can explode.
Explosive atmospheres. NEVER weld or cut where the air may contain
flammable dust, gas, or liquid vapors (such as gasoline).
D. Compressed Gas Equipment
The safe handling of compressed gas equipment is detailed in numerous
industry publications. The following general rules cover many of the most
common situations.
Pressure Regulators
Regulator relief valve is designed to protect only the regulator from
overpressure; it is not intended to protect any downstream equipment.
Provide such protection with one or more relief devices.
Never connect a regulator to a cylinder containing gas other than that
for which the regulator was designed.
Remove faulty regulator from service immediately for repair (first close
cylinder valve). The following symptoms indicate a faulty regulator:
Leaks - if gas leaks externally.
Excessive Creep - if delivery pressure continues to rise with
downstream valve closed.
Faulty Gauge - if gauge pointer does not move o stop pin when
pressurized, nor returns to stop pin after pressure release.
Repair. Do NOT attempt repair. Send faulty regulators for repair to
manufacturer’s designated repair center, where special techniques
and tools are used by trained personnel.
Cylinders
Cylinders must be handled carefully to prevent leaks and damage to
their walls, valves, or safety devices:
Avoid electrical circuit contact with cylinders including third rails,
electrical wires, or welding circuits. They can produced short circuit
arcs that may lead to a serious accident. (See -C)
ICC or DOT marking must be on each cylinder. It is an assurance of
safety when the cylinder is properly handled.
Identifying gas content. Use only cylinders with name of gas marked
on them; do not rely on color to identify gas content. Notify supplier if
unmarked. NEVER DEFACE or alter name, number, or other markings
on a cylinder. It is illegal and hazardous.
Empties: Keep valves closed, replace caps securely; mark MT; keep
them separate from FULLS, and return promptly.
Prohibited use. Never use a cylinder or its contents for other than its
intended use, NEVER as a support or roller.
Locate or secure cylinders so they cannot be knocked over.
Passageways and work areas. Keep cylinders clear of areas where
they may be stuck.
Transporting cylinders. With a crane, use a secure support such as a
platform or cradle. Do NOT lift cylinders o the ground by their valves
or caps, or by chains, slings, or magnets.
Do NOT expose cylinders to excessive heat, sparks, slag, and flame, etc.
that may cause rupture. Do not allow contents to exceed  degrees
C ( degrees F.) Cool with water spray where such exposure exists.
Protect cylinders, particularly valves from bumps, falls, falling objects,
and weather. Replace caps securely when moving cylinders.
Stuck valve. Do NOT use a hammer or wrench to open a cylinder valve
that cannot be opened by hand. Notify your supplier.
Mixing gases. NEVER try to mix any gases in a cylinder.
NEVER refill any cylinder.
Cylinder fittings should never be modified or exchanged.
Hose
Prohibited use. Never use hose other than that designed for the
specified gas. A general hose identification rule is: red for fuel gas,
green for oxygen, and black for inert gases.
Use ferrules or clamps designed for the hose (not ordinary wire or other
substitute) as a binding to connect hoses to fittings.
No copper tubing splices. Use only standard brass fittings to splice hose.
Avoid long runs to prevent kinks and abuse. Suspend hose o ground
to keep it from being run over, stepped on, or otherwise damaged.
Coil excess hose to prevent kinks and tangles.
Protect hose from damage by sharp edges, and by sparks, slag, and
open flame.
Examine hose regularly for leaks, wear, and loose connections. Immerse
pressured hose in water; bubbles indicate leaks
Repair leaky or worn hose by cutting area out and splicing. Do NOT
use tape.
Proper Connections
Clean cylinder valve outlet of impurities that may clog orifices and
damage seats before connecting regulator. Except for hydrogen, crack
valve momentarily, pointing outlet away from people and sources of
ignition. Wipe with a clean, lintless cloth.
Match regulator to cylinder. Before connecting, check that the regulator
label and cylinder marking agree, and that the regulator inlet and
cylinder outlet match. NEVER Connect a regulator designed for a
particular gas or gases to a cylinder containing any other gas.
Tighten connections. When assembling threaded connections, clean
and smooth seats where necessary. Tighten. If connection leaks,
disassemble, clean, and retighten, using properly fitting wrench.
Adapters. Use a CGA adapter (available from your supplier) between
cylinder and regulator, if one is required. Use two wrenches to tighten
adapter marked RIGHT and LEFT HAND threads.
Regulator outlet (or hose) connections may be identified by right hand
threads for oxygen and left hand threads (with grooved hex on nut or
shank) for fuel gas.
Pressurizing Steps:
Drain regulator of residual gas through suitable vent before opening
cylinder (or manifold valve) by turning adjusting screw in (clockwise).
Draining prevents excessive compression heat at high pressure seat
by allowing seat to open on pressurization. Leave adjusting screw
engaged slightly on single-stage regulators.
Stand to side of regulator while opening cylinder valve.
Open cylinder valve slowly so that regulator pressure increases slowly.
When gauge is pressurized (gauge reaches regulator maximum) leave
cylinder valve in following position: for oxygen and inert gases, open
fully to seal stem against possible leak; for fuel gas, open to less than
one turn to permit quick emergency shut-o.
Use pressure charts (available from your supplier) for safe and eicient
recommended pressure settings on regulators.
Check for leaks on first pressurization and regularly thereafter. Brush
with soap solution. Bubbles indicate leaks. Clean o soapy water after
test; dried soap is combustible.
E. User Responsibilities
Follow all Safety Rules.
Remove leaky or defective equipment from service immediately for repair.
Read and follow user manual instructions.
F. Leaving Equipment Unattended
Close gas supply at source and drain gas.
G. Rope Staging-Support
Rope staging-support should not be used for welding or cutting operation;
rope may burn.
- ARC WELDING
Comply with precautions in -, -, and this section. Arc Welding,
properly done, is a safe process, but a careless operator invites trouble.
The equipment carries high currents at significant voltages. The arc is very
bright and hot. Sparks fly, fumes rise, ultraviolet and infrared energy radiates,
weldments are hot, and compressed gases may be used. The wise operator
avoids unnecessary risks and protects himself and others from accidents.
A. Burn Protection
Comply with precautions in -.
The welding arc is intense and visibly bright. Its radiation can damage
eyes, penetrate lightweight clothing, reflect from light-colored surfaces,
and burn the skin and eyes. Skin burns resemble acute sunburn; those

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Page 6
from gas-shielded arcs are more severe and painful. DON’T GET BURNED;
COMPLY WITH PRECAUTIONS.
. Protective Clothing
Wear long-sleeve clothing in addition to gloves, hat, and shoes. As
necessary, use additional protective clothing such as leather jacket
or sleeves, flameproof apron, and fire-resistant leggings. Avoid outer
garments of untreated cotton.
Bare skin protection. Wear dark, substantial clothing. Button collar to
protect chest and neck, and button pockets to prevent entry of sparks.
. Eye and Head Protection
Protect eyes from exposure to arc. Eyes may be damaged by radiant
energy when exposed to the electric arc, even when not looking in the
direction of the arc. Never look at an electric arc without protection.
Welding helmet or shield containing a filter plate shade no.  or denser
must be used when welding. Place over face before striking arc.
Protect filter plate with a clear cover plate.
Cracked or broken helmet or shield should NOT be worn; radiation can
be passed through to cause burns.
Cracked, broken, or loose filter plates must be replaced IMMEDIATELY.
Replace clear cover plate when broken, pitted, or spattered.
Flash goggles with side shields MUST be worn under the helmet to
give some protection to the eyes should the helmet not be lowered
over the face before an arc is struck. Looking at an arc momentarily
with unprotected eyes (particularly a high intensity gas-shielded arc)
can cause a retinal burn that may leave a permanent dark area in the
field of vision.
. Protection of Nearby Personnel
Enclose the welding area. For production welding, a separate room
or enclosed bay is best. In open areas, surround the operation with
low-reflective, noncombustible screens or panels. Allow for free air
circulation, particularly at floor level.
Viewing the weld. Provide face shields for all persons who will be
looking directly at the weld.
Others working in area. See that all persons are wearing flash goggles.
Before starting to weld, make sure that screen flaps or bay doors are
closed.
B. Toxic Fume Prevention
Comply with precautions in -B.
Generator engine exhaust must be vented to the outside air. Carbon
monoxide can kill.
C. Fire and Explosion Prevention
Comply with precautions in -C.
Equipment’s rated capacity. Do not overload arc welding equipment. It may
overheat cables and cause a fire.
Loose cable connections may overheat or flash and cause a fire.
Never strike an arc on a cylinder or other pressure vessel. It creates a
brittle area that can cause a violent rupture or lead to such a rupture later
under rough handling.
D. Compressed Gas Equipment
Comply with precautions in -D.
E. Shock Prevention
Exposed electrically hot conductors or other bare metal in the welding
circuit, or in ungrounded, electrically - HOT equipment can fatally shock a
person whose body becomes a conductor. DO NOT STAND, SIT, LIE, LEAN
ON, OR TOUCH a wet surface when welding without suitable protection.
To protect against shock:
Keep body and clothing dry. Never work in damp area without adequate
insulation against electrical shock. Stay on a dry duckboard, or rubber mat
when dampness or sweat cannot be avoided. Sweat, sea water, or moisture
between body and an electrically HOT part - or grounded metal - reduces
the body surface electrical resistance, enabling dangerous and possibly
lethal currents to flow through the body.
. Grounding the Equipment
When installing, connect the frames of each unit such as welding
power source, control, work table, and water circulator to the building
ground. Conductors must be adequate to carry ground currents safely.
Equipment made electrically HOT by stray currents may shock, possibly
fatally. Do NOT GROUND to electrical conduit, or to a pipe carrying
ANY gas or a flammable liquid such as oil or fuel.
Three-phase connection. Check phase requirement of equipment before
installing. If only three-phase power is available, connect single-phase
equipment to only two wires of the three-phase line. Do NOT connect
the equipment ground lead to the third (live) wire, or the equipment
will become electrically HOT - a dangerous condition that can shock,
possibly fatally.
Before welding, check ground for continuity. Be sure conductors are
touching bare metal of equipment frames at connections.
If a line cord with a ground lead is provided with the equipment for
connection to a switch box, connect the ground lead to the grounded
switch box. If a three-prong plug is added for connection to a grounded
mating receptacle, the ground lead must be connected to the ground
prong only. If the line cord comes with a three-prong plug, connect to
a grounded mating receptacle. Never remove the ground prong from
a plug, or use a plug with a broken ground prong.
. Connectors
Fully insulated lock-type connectors should be used to join welding cable lengths.
. Cables
Frequently inspect cables for wear, cracks, and damage. IMMEDIATELY
REPLACE those with excessively worn or damaged insulation to avoid
possibly lethal shock from bared cable. Cables with damaged areas may
be taped to give resistance equivalent to original cable.
Keep cable dry, free of oil and grease, and protected from hot metal and sparks.
. Terminals and Other Exposed Parts
Terminals and other exposed parts of electrical units should have
insulating covers secured before operation.
. Electrode Wire
Electrode wire becomes electrically HOT when the power switch of gas
metal-arc welding equipment is ON and welding gun trigger is pressed.
Keep hands and body clear of wire and other HOT parts.
. Safety Devices
Safety devices such as interlocks and circuit breakers should not be
disconnected or shunted out.
Before installation, inspection, or service of equipment, shut OFF all power,
and remove line fuses (or lock or red-tag switches) to prevent accidental
turning ON of power. Disconnect all cables from welding power source,
and pull all  volts line-cord plugs.
Do not open power circuit or change polarity while welding. If, in an
emergency, it must be disconnected, guard against shock burns or flash
from switch arcing.
Leaving equipment unattended. Always shut OFF, and disconnect all power
to equipment.
Power disconnect switch must be available near the welding power source.

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5.1
CENTER HEIGHT
IN HORIZONTAL
POSITION
Section B – Specifications
Model Turntable
Diameter
Turntable
Capabilities
with Balanced Load Degree
Tilt
Speed
Range R.P.M Ground
Capacity
AMPS Motor Shipping
Weight
Transmission
Turntable
Vertical Turntable Horizontal Low High
- " lbs lbs " to ° . 
A
%
DutyCycle
 VAC
/Hz lbs. Gear
Head
Turntable Horizontal
 lbs in the horizontal position
with a balanced & centered load.
Load Specifications
Turntable Vertical
 lbs in the vertical position
with a balanced & centered load.
7"
7"
Dimensions
3X 0.38
120°
3X 1.38
1.50
2.38
3.31
5.00
0.25
5.0
9.0
0.3
9.0
6.6
9.6
8.2

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Initial Setup
1. Unbox unit from packaging. Save packaging for future transportation of unit.
2. Plug the unit's power cord into a standard 3 prong 120VAC properly grounded outlet.
3. If you desire to use the provided foot pedal, plug the pedal cable into connector on the front of the unit.
4. Attach a ground cable with a 1/2" ring lug to the ground terminal on the unit.
Warning: Failure to attach a weld ground cable directly to the unit while welding on the turntable,
may cause damage to the unit.
Reversely, leaving the ground cable attached to the unit while welding a part not on the turntable,
may cause damage to the unit.
Section C – Operation

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Operating Procedure
. Push On/O button to switch the unit on
NOTE: If unit doesn't turn on, check power connection and the input power circuit breaker
. During startup, the LED Indicator Ring briefly shows the following:
a. Display code indicating the firmware version
b. Display code indicating the detected electrical frequency (/Hz)
c. Display code indicating the frequency time count (for troubleshooting)
d. Sequential LED test
After startup is complete, the LED Indicator Ring will show the last rotational speed used.
NOTE: If you see any other display code, please refer to list of LED Indicator Ring Display
Codes (page ), and/or see the troubleshooting section (page ).
. To adjust the brightness of the lighting interface, press and hold the rotation direction button
(the turntable must be stopped). After ~ sec., the LED Indicator Ring will change to show the
brightness value. While continuing to hold the rotation direction button, rotate the knob to adjust
brightness of the display. Release the rotation direction button when done.
. Push the rotation direction button to switch between clockwise and counter-clockwise rotation.
When the button is lit the table will rotate clockwise. When it is not lit the rotation is counter-
clockwise.
. Establish desired speed setting using the knob while looking at the LED Indicator Ring on
the turntable.
NOTE: Speed control is nonlinear. If calibrated properly, the first  lights on the LED Indicator
Ring displays finer adjustments from ~. to ~. RPM. The remaining  lights on the LED
Indicator Ring displays adjustments from ~. RPM to . RPM. A Blinking LED indicates a
half-step between two adjacent speeds.
. To start turntable with the set speed press the push button in the center of the knob and release
within  sec., the motor will start and the button lights green. Press the button again to stop and
the button flashes red then turns blue. If the button is held longer than  sec., the turntable starts
jogging ( RPM), the button flashes green and turntable jogs until released.
NOTE: When knob is pressed, the knob rotation is ignored to prevent value changes
while pressing.
With the foot pedal plugged in, the speed setting displayed is the maximum speed the foot pedal
will use. While pressing the foot pedal, the LED Indicator Ring shows speed of the foot pedal
setting.
NOTE: When the foot pedal is plugged in, the Start/Stop function of the knob is disabled.
. Press and hold the On / O button (LED Indicator Ring turns o sequentially in a counter-
clockwise direction) until power is turned to standby mode. If released sooner, the display returns
to normal.
NOTE: The unit is not completely o unless it is unplugged from
power source.
. To adjust the angle of the table, release the Tilt Locking Arm. Tilt table to desired degree then
secure the Tilt Locking Arm, thus locking the table in position.
NOTE: All turntable settings and calibration are preserved when power is turned o.
ON/OFF
Button
Rotation
Direction Button
Knob/Push Button
(Start, Stop, Jog)
AND
LED Indicator Ring
Section C – Operation

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Page 10
Weld Ground  AMP Fuse
Your CobraTurn® T- is outfitted with a  AMP fuse to protect the internal electronics in the event of improper
grounding. Replace with AMP vac AG fuse.
Circuit Breaker
May be tripped in the event of an input power surge or if excess voltage is applied. Breaker switch must be reset.
Calibration Procedure
Your CobraTurn® T- comes calibrated from the factory, but if you suspect the unit's RPM readings are o, follow the
procedure below to re-calibrate the unit:
1. Make sure the unit is off.
2. Press and hold down the direction button, then press the power button.
3. Next release the power button and then the direction button.
4. If done correctly, The LED Indicator ring will display the code below.
5. Push start button and the LED Indicator Ring will display the code shown below.
Then slowly turn the speed knob until the turntable barely begins to rotate.
6. Finally,pressthestopbutton(knob/pushbutton)tonishandsavethecalibration.
Section C – Operation
LED Indicator Ring Display Codes
50hz input frequency
detected
Displayed After Power-Up Only
Displayed Only During Calibration
Displayed At Any Time
60hz input frequency
detected
Pressing invalid key
causes this code to
display for ~ sec.
Pressing invalid key while
foot pedal is plugged in
and key is ignored.
Memory Test Failure (Displayed for
~3 sec)Default settings restored;
Self-testing continues. WARNING:
The turntable SHOULD be
recalibrated.
Ground fault, either
missing earth ground or
need to replace fuse
The hardware is in
Calibration Mode;
Ready to Start.
Turntable memory not set or
is lost. Power cord needs to
be unplugged to reset. If error
persists, please contact MK
support.
Thisashingmessage
is displayed during
calibration of minimum
motor speed.