10
•
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
Note:
Forbid to insert or remove the RS232C
communication line when switch on!
10 Faults
•
Instruments can’t be powered ON
-
Check whether the power line is unplugged
-
Check whether the fuse is broken or loose
•
Fault in power during self-test
-
Switch OFF the unit, then switch ON and reset
the instruments to factory default setting.
•
Stir speed cannot reach set point
-
Excessive medium viscosity may cause abnormal
speed reduction of the motor
•
Unit cannot be powered off when switched off.
-
Check if the residual heat warning function is still
ON and hotplate temperature is above 50
℃
(the
LCD still work and “Hot” flash).
If these faults are not resolved, please contact
manufacturer/supplier.
11 Maintenance and Cleaning
Correct usage and maintenance of the equipment can
extend the service life of equipment. Please keep the
instrument dry and clean, quickly remove and overflowing
liquid, use non-abrasive cleaner to clean up the outer
surface, please do not connect with the power supply if wet.
If wet solids or liquid enter into the instrument, please
disconnect the power supply and do not use, contact the
manufacturer/supplier for more advice.
•
Do not use a spray cleanser on the instrument when
cleaning.
•
Unplug the power cord when cleaning.
•
Only use recommended cleansers:
Dyes
Isopropyl alcohol
Construction
materials
Water containing surfactant /
Isopropyl alcohol
Cosmetics
Water containing surfactant /
