Maintenance And Cleaning - lbx H20D Serie Manual Del Usuario

The interface line's functions between the laboratory equipment and the PC are selected from
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the specified signals according to the EIA- RS232C, corresponding with DIN66020 Part 1. The
location of the connector can be seen in Figure 8
Transmission method: Asynchronous signal transmission in start-stop-operation.
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Mode of transmission: Fully Duplex. 1 start bit; 7 character bits; 1 parity bit [straight (even)); 1
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stop bit.
Transmission speed: 9600 bit/s
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When this function is being used, the LCD screen displays "Remote".
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9. Faults
Instruments cannot be switched ON
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Check whether the power line is unplugged

Check whether the fuse is broken or loose

Fault during self test
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Switch OFF the unit, then switch back ON.

Stir speed cannot reach set point
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Excessive medium viscosity may cause an abnormal motor's speed reduction.

Unit does not turn off when pushing the ON/OFF switch.
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Check if the residual heat warning function is still ON and the hotplate's temperature is

above 50ºC (the LCD still work and "Hot" flash).
If these faults are not resolved, please contact the manufacturer/supplier.

10. Maintenance and Cleaning

Proper maintenance can keep instruments working properly and lengthen their lifetime.
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Do not spray cleanser onto the instrument when cleaning.
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Unplug the power line when cleaning.
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Only use recommended cleansers:
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Note:
Forbidden to insert or remove the
RS232C communication line when the
equipment is on!
Dyes
Construction materials Water containing surfactants
Cosmetics
Foodstuffs
Fuels
Isopropyl alcohol
/ Isopropyl alcohol
Water containing surfactants
/ Isopropyl alcohol
Water containing surfactants
Water containing surfactants
Table 4
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