Barnstead International MIRAK 725 Series, Operation Manual And Parts List, Page: 2 / 36

Safety Information ..............................................................................................................................................3
Alert Boxes ..................................................................................................................................................3
Warnings ......................................................................................................................................................3
Introduction..........................................................................................................................................................5
Unpacking ..........................................................................................................................................................6
Installation ..........................................................................................................................................................8
Principles of Operation........................................................................................................................................9
Operation ..........................................................................................................................................................10
Removing the Clear Plastic Cover..............................................................................................................10
The Power Switch ......................................................................................................................................10
Setting the Stirring Speed ..........................................................................................................................10
Stirring Speed Guide ..................................................................................................................................11
Setting the Temperature..............................................................................................................................11
Controlling Top Plate Temperature ............................................................................................................12
Controlling Solution Temperature ..............................................................................................................12
Calibrating the Probe Temperature Input....................................................................................................13
Using the Probe with the Temperature Display for Stirring-only Applications ............................................14
To Achieve Fast Heat-up of Large Volumes ..............................................................................................15
Heating Small Volumes ..............................................................................................................................15
Heating Metal Vessels and Sand Baths ....................................................................................................15
Heat-up Time Guide....................................................................................................................................16
Operating Specifications ..................................................................................................................................17
Heating Specifications ................................................................................................................................17
Stirring Speed Specifications......................................................................................................................17
General Operating Specifications ....................................................................................................................18
Dimensions- 7" x 7" Models\l 2 ..................................................................................................................18
Dimensions- 12" x 12" Models\l 2 ..............................................................................................................18
Electrical Ratings- 7" x 7" Models\l 2..........................................................................................................18
Electrical Ratings- 12" x 12" Models\l 2......................................................................................................19
Temperature Range for Hot Plates and Stirring Hot Plates........................................................................19
Stirring Speed Range for Stirrers and Stirring Hot Plates ..........................................................................19
Environmental Parameters for all units ......................................................................................................19
Maintenance and Servicing ..............................................................................................................................20
Replacing the Power Board ........................................................................................................................20
Replacing the Logic Board ........................................................................................................................21
Replacing the Display Board ......................................................................................................................21
Replacing the Motor....................................................................................................................................22
Replacing the Top Plate Assembly ............................................................................................................23
Set-up Procedure........................................................................................................................................24
Troubleshooting Guide ......................................................................................................................................27
Replacement Parts List ....................................................................................................................................31
Ordering Procedures ........................................................................................................................................33
Warranty ............................................................................................................................................................36
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