MRC MH-4D Operation Manual

3, Hagavish st. Israel 58817 Tel: [phone], Fax: [phone]

com.mrclab@mrc

Digital Hotplate

With Stirrer

MH-4D

Operation Manual

3, Hagavish st. Israel 58817 Tel: [phone], Fax: [phone]

com.mrclab@mrc

Important Before using this product, read this
entire operation manual carefully. Users should
follow all of the operational guidelines contained in
this manual and take all necessary safety
precautions while using this product. Failure to
follow these guidelines could result in potentially
irreparable bodily harm and/or property damage.

Caution All internal adjustments and maintenance must be
performed by qualified service personnel.

Material in this manual is for information purposes only. MRC is
committed to a continuing program of product development and
improvement, and reserves the right to change information, such as
specifications, appearance, and dimensions, described in this
document without notice. MRC makes no representations or
warranties with respect to this manual. In no event shall MRC be held
liable for any damages, direct or incidental, arising out of or related
to the use of this manual.

This manual contains important safety and operation information.
You must carefully read, understand, and follow all the instructions in
this manual prior to operating this instrument. Keep this manual in a
safe place nearby for reference and make it easily available to all
users.

1) This manual highlight DANGER/WARNING/CAUTION/NOTICE

alerts to prevent injury or property damage and also to achieve
optimum performance of your instrument.

2) These alerts are classified into four types in this manual

depending on the importance and the risk levels as described
below

3) The claim which is out of the quality guarantee published by

the Manufacturer is out of Manufacturer’s responsibility.

4) The damage which is from unexpected fault or damage of user

by Acts of God is out of Manufacturer’s responsibility.

3, Hagavish st. Israel 58817 Tel: [phone], Fax: [phone]

com.mrclab@mrc

Table of content

Section 1 Warning and Cautions………….…..……………………………1-1

Section 2 General Description ………….………………..…………………2-1

Features
Safety
Convenience
Construction

Section 3 Unpacking and installation…………………….……….………3-1
Installation environment
Connecting to Power Supply
Location Condition
Connecting to the main power

Section 4 Operation……………………………………….…………………….4-1

Power On
Change the Set Value (SV)
Change the Alarm Value
Autotuning (AT)
Temperature Offsetting (OFFSET)
Stir Control Knob
External Temperature Probe Input (optional)

Section 5 Maintenance………………………..…………….……….….………5-1

Cleaning Product
Relocation
Keeping Product

Section 6 Troubleshooting …………….……………………………….….…6-1

Section 8 Warranty Information………….…………………………..….….7-1

3, Hagavish st. Israel 58817 Tel: [phone], Fax: [phone]

com.mrclab@mrc

Section 1 Warnings and Cautions

DANGER

Ignoring the following warnings could cause serious injuries or
even fatal accidents.

 Understand all alert labels prior to operating this equipment.
 Never remove or damage the alert labels.
 Never move this equipment while under operation.
 Never install or use this equipment in explosive or flammable

atmospheres.

 Never use or store flammable or hazardous substances near to

this equipment.

 Never use the equipment to heat flammable or hazardous

substances.

 Always wear proper protective gear (such as goggles, gloves,

masks or an apron) when using this equipment.

 Never allow water, organic solvents, dust, or corrosive gases to

get inside the equipment.

 Never immerse this equipment in water or operate it under

water.

 Never reach for this equipment if it has fallen into water.
 Check electrical requirements described in this operation

manual or on the ID plate of this equipment before use.
Connect this equipment to a dedicated power outlet nearby.

 Connect this equipment only to properly grounded power

outlets to protect you and your instrument. Do not ground to
gas pipes or water pipes.

 Never install this equipment closer than 30 cm (12 inches) to a

wall of combustible material. Observe minimum distances (in
general, 30 cm) from other devices.

 If you observe strange smoke, odor or noise from the

instrument, unplug the power cord immediately and turn off
the main power switch. After the smoke or odor disappears,
contact your dealer or MRC if any repair is required.

3, Hagavish st. Israel 58817 Tel: [phone], Fax: [phone]

com.mrclab@mrc

 Never disassemble, repair, or modify this equipment on your

own. Doing so will void your warranty and may result in injuries
or product damages.

 Do not heat any substances above temperature which will

cause hazards of explosion, implosion or release of toxic or
flammable gases from the material being heated.

 Do not use in the presence of pressurized or sealed containers.

Fire or explosion may result causing injury or death

 Do not operate the plate with external temperature probe

in the air or out of the liquid.

 The external probe must be properly placed into a liquid

on the top surface during the whole process, to prevent
damage to the plate

 The plate might be covered with aluminum foil to protect

it, DO NOT cover any other parts of the device and make
sure the radiation sheets underneath are not covered.

 The Aluminum topped plates are not designed to be used with

metal containers. For heating of such containers it's advisable
to use a ceramic top hot plate.

 To avoid electric shock, always use a property grounded

electrical outlet of correct voltage, and correct handling
capacity equipment

CAUTION

Ignoring the following cautions could cause injuries or property
damages.

 Keep away the power cord from the hot plate, to prevent

melting and damages.

 Do not touch the top plate or any object near it even when the

heater is turned off. You may get burned due to residual heat.

 After using this equipment, make sure to turn off the main

power switch and also to disconnect the power cord from the
power outlet for the safety of other users.

3, Hagavish st. Israel 58817 Tel: [phone], Fax: [phone]

com.mrclab@mrc

 Do not place heavy objects, including this equipment, on top

of the power cord and do not strip, scratch, bend, twist, pull, or
heat the power cord. A damaged power cord is a fire and
electrical shock hazard.

 Make sure to set up this equipment on a flat, stable, clean,

non-slip, dry, and fireproof surface inside a lab with proper
safety measures.

 Do not touch the power outlet, power socket, or power cord

with wet hands. And make sure to connect the power cord
directly and firmly to the power outlet and power socket.

 Do not put or insert any objects (especially if conductive or

flammable) inside this equipment.

 Do not expose this equipment to any heat sources including

direct sunlight.

 Mechanical shock or vibration can damage this equipment. Pay

extra attention while moving it. Damages caused by
mechanical shock or vibration may result in injury or fire.

 Do not impact the top plate or heat sink. You can damage the

equipment or get injured.

 Do not install this equipment near any device that generates

high frequency noise such as high frequency welding
machines, high frequency sewing machines, or SCR power
controllers.

 Before cleaning, make sure to unplug the power cord to avoid

electric shock or fire.

 Do not use chlorine bleach, ammonia-based cleaners,

abrasives, ammonia, or metal scouring pads. Wipe with a soft
damped cloth or a sponge soaked in water or diluted neutral
detergent.

 The user shall be aware that, if the equipment is used in a

manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.

 The instrument should be placed so, that handy operation of

the ON-OFF Switch is possible.

 Service only by a qualified Service engineer.

3, Hagavish st. Israel 58817 Tel: [phone], Fax: [phone]

com.mrclab@mrc

 Always disconnect from power supply prior to maintenance

and servicing.

 Connect the instrument to a ground mains outlet, after

ensuring that the Voltage is the same as given on the name
plate

 The Instrument must be connected to an earthen (grounded)

supply