4
Safety
Before applying power to the instrument please,
verify the following:
•
Power supply voltage must correspond to that
specified on the name plate of the instrument.
•
Electrical connections must be made as described
on pages 8-9.
•
Ground connections must be correctly installed.
Periodically Verify:
•
The integrity of the power supply cables, wiring, and
other connected electrical equipment.
•
The integrity of the instrument’s housing. The
housing must not have any damage that could
compromise the environmental sealing.
•
The torque setting of elements such as cable glands,
covers, etc. (Use supplied fittings if using hard
conduit).
•
The integrity of the front panel, display, and keyboard.
Damage may compromise the environmental sealing.
•
The mechanical attachment of the sensor to the pipe
and the converter mounted to a wall (for remote
converter mounting).
Grounding Instruction
For correct operation of the instrument, it is essential
that the sensor and the liquid are at the same electrical
potential. Always connect the sensor and converter to
a dedicated earth ground.
Always establish a reliable electrical connection to ground before using the instrument.
Verify that the supply voltage is the same as written on the nameplate of the converter.
Ensure that the power supply voltage is not connected to the outputs or to any terminals of terminal
blocks M1 or M2.
Carefully close the rear cover of the converter when the electrical connections are completed.
Do not open the converter’s rear cover when the power is on.
Avoid any attempt to repair the converter or sensor. If the system is not functioning properly, please
call the nearest authorized service center.
Legend
Dangerous voltage. Terminals identified by this symbol are subject to variable voltages that may exceed
60VDC and cause electric shock. Terminals 12 and 13 (page 7) have a 60VDC max with 250V spikes
during magnetic field switching.
Dangerous voltage. May cause severe electric shock.
General warning.
Caution.
Summary of Contents for LIQUID CONTROLS HML210
Page 43: ...43 Notes...
