PreeKem TOPEX, Service Manual, Page: 3 / 19

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1 Introduction
1-1 Summarize
TOPEX adopts the ultramodern apperance design, with high ‐ tech color touch screen and color humanized
graphical interface, real ‐ time imaging techiques,these all embody convenient and comfortable in modern
laboratory.TOPEX adopted microwave directional compression technology, that based on microwave vector
reflex design,Directional change field intensity distribution,Will be highly uniform microwave energy gathered
in the sample areas, improve the reaction of parallelism.
1-2 technical parameters

Microwave mode: dual magnetrons

Power supply: 50Hz
，
220 ‐ 240V

Microwave power: 0~1700W

Microwave frequency: 2450MHz

Power control: PID

Vessels type:10\15\40

Work temperature: 0~260
℃

Work pressure:0~6MPa
1-3 Safety precautions

Dual interlock switches.

Pressure sensor: Pressure sensor is used to monitor pressure produced by sample reaction.Microwave
can only be generated when the real ‐ time pressure is under the setting value.

Temperature sensor:Temperature sensor is used to monitor samples’ temperature.Microwave can only
be generated when the real ‐ time temperature is not beyond setting value.
1-4 Safety standards
Troubleshooting should not be dealed with power on,please refer to the following rules if the condition needs
the power on:

Open the door to avoid microwave started by mishandling.

Make sure that you are clearly familiar with wiring diagram, understanding various electronic
components described on wiring diagram,understanding their working voltage and features.
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TOPEX service manual

Directly measuring the output of high voltage transformers and filament transformers with the power
on is forbidden.

Directly measuring the high voltage diodes with the power on is forbidden.

Directly measuring the magnetrons with the power on is forbidden.

Directly measuring the high voltage diode with the power on is forbidden.

Replacing the high voltage components need the time elapsed 5 minutes after the power is turned
off,because of high voltage capacitor discharge.
1-5 Application rules
Samples of dangerous chemical reaction or explosive characteristic of atomic groups must be pay serious
attentions. Before make clear of microwave control ability and chemical reaction intensity, TOPEX can not be
put in use.