MRC MH-4D Operation Manual Download Page 1

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3, Hagavish st. Israel 58817 Tel: 972 3 5595252, Fax: 972 3 5594529

com

mrclab

mrc

Digital Hotplate

With Stirrer

MH-4D

Operation Manual

Summary of Contents for MH-4D

Page 1: ...3 Hagavish st Israel 58817 Tel 972 3 5595252 Fax 972 3 5594529 com mrclab mrc Digital Hotplate With Stirrer MH 4D Operation Manual ...

Page 2: ...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...

Page 3: ...stallation 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 S...

Page 4: ... 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...

Page 5: ...e 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 ...

Page 6: ... 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 po...

Page 7: ...om 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 ...

Page 8: ...nsion W x D x H mm 200 X 250 X 130 Top plate dimension mm 175 X 175 mm Maximum heating capacity 800W Current consumption 110V 7 3A Temp range Up to 300 C Temp control Digital Magnetic stirrer 100 1200 rpm Features Performance Microprocessor PID Feedback Control Fast and precise temperature control is provided by the microprocessor PID controller Quick Heat Up Time Ample heating capacity and superb...

Page 9: ...mits The high temperature limit of the top plate is set to 300 C to protect you and your media However you can set your own high and low temperature limits to reduce operation time and also to avoid inadvertent mistakes Convenience Two large digital displays on the control panel clearly show both set and actual temperatures of the top plate side by side You can easily set your own temperature limi...

Page 10: ...lab mrc Construction 1 Top Plat 2 Radiation Sheets 3 Main Power Switch 4 FY 400 Temperature Controller 5 Stirring Control Knob 6 Stirring Switch 7 Stirring motor 8 Socket for Temperature Probe 9 Identification Label 10 Threaded Holes for Support Rod Optional 11 Power Cord ...

Page 11: ...unpacking check to ensure that all the following parts and accessories are included in the package If not contact your dealer or MRC immediately Item Quantity Main Body 1 Operation Manual 1 External Probe 1 Stirring magnet option 1 Support Rod option 1 RS232 or RS485 Communication option 1 Programmer option 1 Separate Control box option 1 Installation Environment It should be installed in suitable...

Page 12: ...that generates high frequency noises Set up this equipment on a flat stable clean non slip dry and fireproof surface inside a lab with proper safety measures Observe the minimum distances in general 30 cm or 12 inches from other devices In addition any device which can be affected by the motor vibrations should not be placed near this equipment Connecting to Power Supply When connecting power use ...

Page 13: ... in the operation manual or on the ID plate attached to the back of this equipment before use Make sure to connect this equipment only to properly grounded as well as dedicated power outlets to protect you and your equipment In order to prevent fire or power cord damage due to overloading do not use power strips or improper extension cords ...

Page 14: ...key Program hold Decrease numbers 1000 100 10 1 Program hold Programmable controller 7 Up key Program run Decrease numbers 1000 100 10 1 Program run Programmable controller OUT1 8 OUT1 lamp Lights when OUT1 is activated OUT2 9 OUT2 lamp Lights when OUT2 is activated AT 10 Auto tuning lamp Lights when Auto tuning is activated AL1 11 Alarm 1 lamp Lights when Alarm 1 is activated AL2 12 Alarm 2 lamp ...

Page 15: ...mrc Operations Power On Controller will display as below Change the Set Value SV Change SV for example from 0 to 100 NOTICE You can change the temperature setting even during operation Changing the temperature setting is allowed only within the low and high temperature limits ...

Page 16: ...riod the PID controller controls the power to the process and measures the rate of change overshoot and response time of the plant This is often based on the Zeigler Nichols method of calculating controller term values Once the auto tune period is completed the P I D values are stored and used by the PID controller Use AT function to automatically calculate and set the optimize PID value for your ...

Page 17: ...yed temperature is 98 C you can match the displayed temperature with the actual temperature of the unit by selecting the offset value of 2 C Stir Control Knob Turn it clockwise to set desired stirring speed Turn it all the way counterclockwise to turn off stirring function Stirring Instructions 1 Fill vessel with liquid to be stirred 2 Place stir bar into vessel 3 Place vessel in the center of the...

Page 18: ... probe in vessel 8 Reconnect power cord 9 Turn the main switch and the stirring switch to the ON position 10 Product is now ready for use with External Temperature Controller 11 Repeat the above process when disconnecting the temperature controller CAUTION Do not use the plate with external temperature probe in the air or out of the liquid this can cause serious damage to the plate due to lack of ...

Page 19: ...cessories Damages in plate switches buttons Controller Heating capability check up to 300 Stirring capability check up to 1200 rpm Assembly status of all parts or accessories Cleaning Product WARNING Never immerse this unit in water or any other liquid Do not allow any liquid or wet material to get inside the unit when cleaning Do not reconnect this unit to power outlets until all cleaned surfaces...

Page 20: ...n water or diluted neutral detergent when necessary Relocation If you need to move the equipment to another place 1 Disconnect the power cord from the power outlet 2 Pack the equipment and its accessories into the original packaging or any other suitable container before moving CAUTION Pay attention to avoid mechanical shock or vibration while moving the instrument Damages caused by mechanical sho...

Page 21: ...C for service Repetitive tripping of circuit breaker Internal circuit failure Contact MRC for service Main switch failure Contact MRC for service Controller failure Contact MRC for service No operation with power on Internal circuit failure Contact MRC for service Operation troubles Cause Corrective action Temperature sensor is disconnected Connect the temperature sensor Too low setting of the tem...

Page 22: ...y repairs Expendable items glass filters and gaskets are excluded from this warranty Replacement or repair of components parts or equipment under this warranty shall not extend the warranty to either the equipment or to the component part beyond the original warranty period The Technical Services Department must give prior approval for return of any components or equipment Your MRC Sales Office is...

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