90-3 bidirectional constant temperature magnetic stirrer

I. Overview

90-3 bidirectional constant temperature magnetic stirrerWidely used in fields such as medicine, biochemistry, biology, chemistry, etc. (Type 90 is a magnetic stirrer, Type 90-1 is a constant temperature magnetic stirrer, Type 90-2 is a constant temperature magnetic stirrer, and Type 90-3 is a bidirectional constant temperature magnetic stirrer). It is the ideal liquid mixing equipment in your laboratory, providing you with different choices according to your needs.

2、 Characteristics

The 90-3 bidirectional constant temperature magnetic stirrer draws on the advantages of similar products at home and abroad, using high-quality motors as drivers, and has the advantages of smooth speed regulation and low noise. This product adopts advanced heating technology, with fast heating speed, uniform and adjustable heating temperature, and is equipped with a conductive thermometer for automatic constant temperature stirring. It is safe to use and reliable in performance. The 90-2 model also has a timed mixing function.

3、 Technical indicators

(1) Environmental conditions for use: temperature 0-40 ℃; The same temperature is 85%.

(2) Working voltage: AC220V ± 10%; 50HZ。

(3) Mixing capacity: 20-3000ml.

(4) Mixing speed: 0-1250 revolutions per minute (stepless speed regulation).

(5) Heating temperature: Room temperature -150 ℃ (adjustable).

(6) Heating power: 0-350W (adjustable).

(7) Timed time: 0-120 minutes (limited to 90-2 type only).

(8) Volume: 185 × 185 × 140 (mm)

(9) Weight: 3.8kg

4、 Parameters of similar products

5、 Maintenance and upkeep

1. Move the mouth before starting: When the mixer malfunctions, do not immediately start. Instead, inquire about the history and symptoms of the malfunction. For unfamiliar equipment, one should first familiarize themselves with the circuit principles and structural characteristics, and follow the corresponding rules. Before dismantling, it is necessary to fully familiarize oneself with the function, position, connection method, and relationship with other surrounding components of each electrical component. In the absence of an assembly diagram, sketches should be drawn and marked while dismantling.

2. External first, then internal: The equipment should be checked for obvious cracks and defects, and its maintenance history, service life, etc. should be understood before inspecting the interior of the machine. Before dismantling, it is necessary to eliminate the surrounding fault factors and determine that it is an internal fault before dismantling. Otherwise, blind dismantling may cause the equipment to deteriorate over time.

3. Mechanical electrical inspection: Only after confirming that the mechanical parts are free of faults, can electrical inspections be carried out. When checking for circuit faults, detection instruments should be used to locate the faulty area. After confirming that there are no poor contact faults, the operation relationship between the circuit and the machinery should be checked in a targeted manner to avoid misjudgment.

4. Static first, then dynamic: When the equipment is not powered on, judge the quality of electrical equipment buttons, transformers, thermal relays, and fuses to determine the location of the fault. Power on test, listen to its sound, measure parameters, determine faults, and then carry out repairs. If it is impossible to distinguish the three-phase voltage value when the motor is in phase loss, one should listen to its sound and measure the relative ground voltage separately to determine which phase is missing.

5. Clean before repairing: For heavily polluted electrical equipment, clean its buttons, wiring points, and contact points first, and check if the external control keys are malfunctioning. Many faults are caused by dirt and conductive dust blocks.

6. Power supply before equipment: The failure rate of the power supply part accounts for a high proportion of the entire faulty equipment, so repairing the power supply first can often achieve twice the result with half the effort.

7. Fault first and then debugging: for electrical equipment with debugging and fault, the fault should be eliminated before debugging, and debugging must be carried out under the premise of electrical line speed.

8. Common first, then special: Faults caused by the quality of assembly parts or other equipment failures generally account for about 50% of common faults. The special faults of electrical equipment are mostly soft faults, which require experience and instruments to measure and repair.

Warranty method includes three guarantees for one year and lifetime maintenance!

Our company has passed the ISO9001-2008 quality system certification