Handling and Safety Instructions

The MFLI Instrument is a sensitive piece of electronic equipment, and under no circumstances should its casing be opened, as there are high-voltage parts inside which may be harmful to human beings. There are no serviceable parts inside the instrument. Do not install substitute parts or perform any unauthorized modification to the product. Opening the instrument immediately voids the warranty provided by Zurich Instruments.

Do not use this product in any manner not specified by the manufacturer. The protective features of this product may be affected if it is used in a way not specified in the operating instructions.

The following general safety instructions must be observed during all phases of operation, service, and handling of the instrument. The disregard of these precautions and all specific warnings elsewhere in this manual may negatively affect the operation of the equipment and its lifetime.

Zurich Instruments assumes no liability for the user’s failure to observe and comply with the instructions in this user manual.

Table 1. Safety Instructions

Ground the instrument

The instrument chassis must be correctly connected to earth ground by means of the supplied power cord. The ground pin of the power cord set plug must be firmly connected to the electrical ground (safety ground) terminal at the mains power outlet. Interruption of the protective earth conductor or disconnection of the protective earth terminal will cause a potential shock hazard that could result in personal injury and potential damage to the instrument.

Measurement category

This equipment is of measurement category I (CAT I). Do not use it for CAT II, III, or IV. Do not connect the measurement terminals to mains sockets.

Maximum ratings

The specified electrical ratings for the connectors of the instrument should not be exceeded at any time during operation. Please refer to the Specifications for a comprehensive list of ratings.

Do not service or adjust anything yourself

There are no serviceable parts inside the instrument.

Software updates

Frequent software updates provide the user with many important improvements as well as new features. Only the last released software version is supported by Zurich Instruments.

Warnings

Instructions contained in any warning issued by the instrument, either by the software, the graphical user interface, the notes on the instrument or mentioned in this manual, must be followed.

Notes

Instructions contained in the notes of this user manual are of essential importance for correctly interpreting the acquired measurement data.

Floating shield connectors

The Signal Input connector shields are allowed to float relative to earth ground. These shields are connected to each other through internal circuitry. Attempting to drive them to a different potential can result in high currents that may damage your instrument. The Signal Input connector shields are only allowed to float relative to earth ground within a certain voltage range, please refer to the Specifications. It is recommended to discharge the test device before connecting or to enable the floating Signal Input shields only after the signal source has been connected to the instrument.

High voltage transients due to inductive loads

When measuring devices with high inductance, take adequate measures to protect the Signal Input connectors against the high voltages of inductive load switching transients. These voltages can exceed the maximum voltage ratings of the Signal Inputs and lead to damage.

Location and ventilation

This instrument or system is intended for indoor use in an installation category II and pollution degree 2 environment as per IEC 61010-1. Do not operate or store the instrument outside the ambient conditions specified in the Specifications section. Do not block the ventilator opening on the back or the air intake on the chassis side and allow a reasonable space for the air to flow.

Cleaning

To prevent electrical shock, disconnect the instrument from AC mains power and disconnect all test leads before cleaning. Clean the outside of the instrument using a soft, lint-free cloth slightly dampened with water. Do not use detergent or solvents. Do not attempt to clean internally.

AC power connection and mains line fuse

For continued protection against fire, replace the line fuse only with a fuse of the specified type and rating. Use only the power cord specified for this product and certified for the country of use. Always position the device so that its power switch and the power cord are easily accessible during operation.

Main power disconnect

Unplug product from wall outlet and remove power cord before servicing. Only qualified, service-trained personnel should remove the cover from the instrument.

Operation and storage

Do not operate or store the instrument outside the ambient conditions specified in the Specifications section.

Handling

Handle with care. Do not drop the instrument. Do not store liquids on the device, as there is a chance of spillage resulting in damage.

Safety critical systems

Do not use this equipment in systems whose failure could result in loss of life, significant property damage or damage to the environment.

When you notice any of the situations listed below, immediately stop the operation of the instrument, disconnect the power cord, and contact the support team at Zurich Instruments, either through the website form or by [email protected].

Table 2. Unusual Conditions

Fan is not working properly or not at all

Switch off the instrument immediately to prevent overheating of sensitive electronic components.

Power cord or power plug on instrument is damaged

Switch off the instrument immediately to prevent overheating, electric shock, or fire. Please exchange the power cord only with one for this product and certified for the country of use.

Instrument emits abnormal noise, smell, or sparks

Switch off the instrument immediately to prevent further damage.

Instrument is damaged

Switch off the instrument immediately and ensure it is not used again until it has been repaired.

Table 3. Symbols

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Earth ground

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Chassis ground

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Caution. Refer to accompanying documentation

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DC (direct current)