Active Member
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[China]
Address: No.1119 Science Avenue,,Shangjie District, Zhengzhou,China
Contact name:nancy
Zhengzhou Greatwall Scientific Industrial and Trade Co.,Ltd |
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Failure | Cause | Troubleshooting |
Connect the power supply, the power indicator lamp doesn't light or LCD panel does not light. | Check the power line and find out whether it’s through or misconnected. | Connect the power line. |
Failure of power switch. | Replace power switch. | |
Failure of circuit board. | Stop using immediately and contact us. | |
The power indicator lamp lights or rotation allows identifier lights, but does not rotate. | Failure of motor. | |
Failure of circuit board. | ||
The heating output, but not warming up. | The solid state relays fault. | Replace the solid state relays |
Heater fault. | Replace heater. | |
The temperature display shows up | The bath of temperature measurement sensor short circuit or open circuit. | Check sensor and wiring. |
The temperature display shows “Er-1”,ALM1 identifier lights | The bath of temperature measurement sensor short circuit or open circuit. | Check sensor and wiring. |
The temperature display shows “Er-2”,ALM1 identifier lights | The bath of protection sensor short circuit or open circuit. | |
The temperature display shows “Er-3”,ALM1 identifier lights | The bath of protection sensor exceeds the set value. | Restart the power switch. |
The speed display shows “Er-1”,ALM2 identifier lights. | Power module fault. | Remove the rotary bottle, no-load operation. The fault has not been lifted, discontinue use immediately and contact the company. |
The speed display shows “Er-2”,ALM2 identifier lights. | Motor stall. | |
The speed display shows “Er-3”,ALM2 identifier lights. | Holzer logic error. | |
The speed display shows “Er-4”,ALM2 identifier lights. | Bus voltage under voltage. | Check the power supply voltage value. |
The speed display shows “Er-5”,ALM2 identifier lights. | Bus voltage over voltage. | |
The speed display shows “Er-6”,ALM2 identifier lights. | Serial communication fault | Stop using immediately and contact us. |
Abnormal noise | Abrasion of seal ring. | Replace the seal ring. |
Abrasion of internal gear. | Stop using immediately and contact us. | |
Lack of oil in drive part. | ||
Failure of motor. | ||
Leakage of pressure and poor degree of vacuum | Abrasion of glass rotary shaft. | Replace the glass rotary shaft. |
Abrasion of seal ring. | Replace the seal ring. | |
Improper installation of seal ring (Opposite direction) | Remount the seal ring. | |
Aging of the seal ring of pressure-relief air tap. | Replace the air tap seal washer | |
Aging of vacuum hose. | Replace the vacuum hose. | |
Abnormal lifting | Failure of circuit board or motor. | Stop operating immediately and contact us. |
Abrasion or rusting of sliding bearing. |
Brief introduction of Rotary Evaporator:
- Ideal for Distill of (Mixed) Solvent, Condensation Solution and Suspension, Concentrate Liquid, Re-crystallizaton, Dry Powder and Granulate, Synthesize Chemical, Soxhlet Extraction, Recycle Solve.
- Water Bath Electric Lift, Easy to Use.
- Teflon(PTFE) and Fluorine Rubber Dual Rotating Seal, Patented Technology to Ensure High Vacuum.
- A Vacuum Switching Valve, without Affecting the System Vacuum Distillation of the Situation and the Solution can be Continuously Collected.
