Safety Precautions
The following safety precautions should be observed before using this product or working on the attached cables. This MSM400 product is intended for use by qualified personnel who recognize shock hazards and are familiar with the safety precautions required to avoid possible injury. Read the operating information carefully before using the product.
The types of product users are:
Responsible body: This is the individual or group responsible for the use and maintenance of equipment, and for ensuring that operators are adequately trained.
Operators use the product for its intended function. They do not require access to the electrical connections within the control box, and would normally only operate the external keypad and monitor the display.
Maintenance personnel perform routine procedures on the product to keep it operating, for example, checking the line voltage or checking electrical connections, replacing mains fuses etc.
Service personnel are trained to work on live circuits, and perform safe installations and repairs of products. Only properly trained service personnel may perform installation and service procedures. However, the only serviceable part in MSM400 is the mains cartridge fuse.
Users of this product must be protected from electric shock at all times. Product users must be trained to protect themselves from the risk of electric shock.
Before operating the instrument, make sure the mains supply is connected to a properly grounded power supply. Periodically inspect the connecting cables for possible wear, cracks, or breaks. Check lid and glands are tight, also check unit for damage and if damaged do not use.
The fuse may only be replaced with same type and rating for continued protection against fire hazard.
To clean the instrument, use a damp cloth or mild, water based cleaner. Clean the exterior of the instrument only. Do not allow liquids to enter or spill on the instrument.
WARNING - If this equipment is used in a manner not specified by Mobrey Measurement, the protection provided may be impaired. The MSM400 is regarded as permanently installed equipment and as such a double pole supply isolating switch or circuit breaker must be included in the installation. This should be in close proximity to and not be obstructed by the equipment. It should be marked as its disconnecting device.
A protective earth must be used for all applications.
The installation of the MSM400 and its associated power cables must be such that tank overflow, local flooding or pump failure do not cause these to be submerged or subject to flows of water. Sensors and sensor cabling can be submerged without hazard to equipment operators when correctly connected as described in this manual.
CHECK THAT THE POWER SUPPLY IS SUITABLE BEFORE SWITCHING POWER ON.
Internal adjustments can select mains 115 Volts AC power, which makes the equipment unsuitable for 230V AC supplies. Check this Voltage selection switch compared to the available power supply.
Explanation of symbols:
The Protective earth terminal must be connected to an external Protective earthing system.
!Refer to manual.
Hazardous area systems :-
Where the MSM400 is connected to sensors located in an explosive atmosphere additional instructions apply. Refer to Safety Instructions IP258/SI
IP258
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