Page 5
MSL600
Installation, Operation & Maintenance Manual
IP262/Z0, Rev. AB
February 2012
(i) Safety precautions
BEFORE OPERATING THIS DEVICE THE MANUAL SHOULD BE READ FULLY
The following safety precautions should be observed before using this product or working on the attached cables.
x This MSL600 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.
x 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
should not be allowed 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. Otherwise, only service
personnel should perform them.
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. There are no user
serviceable parts on the main PCB section of the MSL600 product.
x Users of this product must be protected from electric shock at all times. The responsible body must ensure
that users are prevented access and/or insulated from every connection point. Product users must be trained
to protect themselves from the risk of electric shock.
x Before operating an instrument, make sure the line cord is connected to a properly grounded power
receptacle. Inspect the connecting cables for possible wear, cracks, or breaks before each use. When fuses
are used in a product, replace with same type and rating for continued protection against fire hazard.
x Chassis connections must only be used as shield connections for measuring circuits, NOT as safety earth
ground connections.
x Standard fuses, with applicable national safety approvals, may be used if the rating and type are the same. If
you are unsure about the applicability of a replacement component, call a MOBREY office for information.
Only use the MSL600 with the sensor supplied or Mobrey agreed replacement. The unit will not necessarily
work with apparently equivalent sensor units.
x To clean the instrument, use a damp cloth or mild, water based cleaner. Clean the exterior of the instrument
only. Do not apply cleaner directly to the inside of the instrument or allow liquids to enter or spill on the
instrument.
x WARNING - If this equipment is used in a manner not specified by Mobrey, the protection provided may be
impaired. The MSL600 is regarded as permanently installed equipment and as such a switch or circuit
breaker must be included in the installation. This should be in close proximity to the equipment, it should be
marked as the disconnecting device, and it should disconnect both current carrying conductors.
x A protective earth should be used for all applications.
x The normal application of the MSL600 requires it to be mounted on a water handling plant. The installation
point and power cables associated with the MSL600 must be such that tank overflow, local flooding or pump
failure do not cause these to be submerged or subject to flows of water. Sensor and sensor cabling can be
submerged without hazard to equipment operators when correctly connected as described in this manual.
Explanation of symbols: The IEC Protective Earth Symbol is:
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 the 2 voltage selection switches compared with the available power supply.
