Major Science MP-250V Manuel d'instruction - Page 6

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10. The unit shall be operated Only by qualified personnel.

Safety Information

Use the high level of precautions against any electrical device. Before

connecting with the electrical supply, check the supply voltage is within the

range stated at the rating label, and this device must be earthed. Place the unit

in a safe and dry location and MUST NOT touch things in the surrounding.

Also do follow the safety precautions for chemicals and dangerous materials.

If needed, please contact qualified service representative or contact

Environmental Conditions

Ensure the instrument is installed and operated strictly in the following

conditions:

- ≤95% RH,

- 75 KPa-106 Kpa,

- Altitude not to exceed 2000 meters

- Ambient ~ 40℃ operating temperature.

Avoiding Electrical Shock

Follow the guidelines below to ensure safe operation of the unit.

MS 250V / MS 300V power supply series has been designed to use with

shielded wires thus minimizing any potential shock hazard to the user. Major

Science recommends against the use of unshielded wires.

To avoid electrical shock:

1. In the event of solution accidentally spilled into the instrument, it must be

dried out for a period of time, at least 2 hours, and restored to NORMAL

CONDITION before each operation.

2. NEVER connect or disconnect wire leads from the power jacks when the red

indicator light at the Start/Stop key is light.

3. WAIT at least 5 seconds after stopping a run before handling output leads or

connected apparatus.

4. ALWAYS make sure that hands, work area, and instruments are clean and

dry before making any connections or operating the power supply.

5. ONLY connect the power cord to a properly 3-prong grounded AC outlet,