LBX instruments H20D+ Mode D'emploi page 10

8. Remote Control (H20D+ series)
The unit can be controlled from an external PC (using the necessary software) via the RS232C serial interface integrated
in the system. Data communication between the laboratory equipment and the computer is only possible on demand of the
computer.
•
The interface line's functions between the laboratory equipment and the PC are selected from 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.
•
Mode of transmission: Fully Duplex. 1 start bit; 7 character bits; 1 parity bit [straight (even)); 1 stop bit.
•
Transmission speed: 9600 bit/s
•
When this function is being used, the LCD screen displays "Remote".
9. Faults
•
Instruments cannot be switched ON
➢
Check whether the power line is unplugged
➢
Check whether the fuse is broken or loose
•
Fault during self test
➢
Switch OFF the unit, then switch back ON.
•
Stir speed cannot reach set point
➢
Excessive medium viscosity may cause an abnormal motor's speed reduction.
•
Unit does not turn off when pushing the ON/OFF switch.
➢
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.
Figure 8
Note:
Forbidden to insert or remove the RS232C
communication line when the equipment is on!
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