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Installation and Operating Manual
IP227, Rev DA
Mobrey MCU200 Series
February 2020
General safety precautions
The equipment described in this manual has been designed in accordance with EN61010 “Safety requirements for
electrical equipment for measurement, control and laboratory use”, and has been supplied in a safe condition.
To avoid injury to an operator or service technician, the safety precautions given below, and throughout the
manual, must be strictly followed whenever the equipment is operated, services or repaired.
For specific safety details, please refer to the relevant sections within the manual.The equipment is designed solely
for electronic measurement and should be used for no other purpose. Delta Mobrey accepts no responsibility for
accidents or damage resulting from failure to comply with these precautions.
Grounding
To minimise the hazard of electrical shock, it is essential that the equipment be connected to a protective ground
whenever the power supply, measurement or control circuits are connected, even if the equipment is switched off.
The electronics unit must be connected to ground using the marked case stud before control or signal leads are
connected. The ground connections must have a current rating of 25 A.
AC supply
Never operate the equipment from a line voltage or frequency in excess of that specified. Otherwise, the insulation
of internal components may break down and cause excessive leakage currents.To allow the electronics unit to be
isolated from the ac supply, the supply must be routed through a switch (or circuit breaker). The switch (or circuit
breaker) must be within easy reach of the operator and must be clearly identified as the means of supply isolation.
The maximum current drawn from the supply must be limited by a fuse or trip, to a maximum of 13 A.
Fuses
Before switching on the equipment, check that the fuses accessible from the interior of the equipment are of the
correct rating. The rating of the ac line fuse must be in accordance with the voltage of the ac supply. If any fuse
continually blows, do not insert a fuse of a higher rating. Switch the equipment off, clearly label it “unserviceable”
and inform a service technician.
Explosive atmospheres
Never operate the equipment, or any sensors connected to the equipment, in a potentially explosive atmosphere.
It is not intrinsically safe and could possibly cause an explosion.
Safety symbols
For the guidance and protection of the user, the following safety symbols appear on the equipment:
Symbol:
Meaning:
Fault indicator. Refer to the user manual for detailed instructions of use.
Hazardous voltages
