6
DOC No: 8540 REV E
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DOC No: 8540 REV E
Installation in Explosive and Fire Danger Zones
Micropump offers products designed and tested for installation in explosive or
fi
re danger
zones. Contact your local Micropump distributor or contact Micropump directly to deter-
mine if your EagleDrive product combination can be certi
fi
ed for this use.
In addition to the warnings provided throughout this manual, the following must be consid-
ered in any explosion or
fi
re danger zone installation:
Ensure the pump head, motor, and any mounting adapter are suitable for
area classi
fi
cation.
Limits of Use
The EagleDrive motor is intended for use with pumps handling
fl
uids in a variety of pump-
ing systems. These
fl
uids may be innocuous or hazardous, depending on the speci
fi
c
application. You should contact your local Micropump distributor or contact Micropump
directly about special limitations of your pump/motor unit with regard to your speci
fi
c
system.
To achieve optimum performance and safe operation Micropump products must be
operated with the limits given in the Technical Speci
fi
cation. Operation outside these
limits is not recommended and may result in damage to the pump, motor, and/or ancillary
equipment.
Temperature. Operating beyond the maximum operating temperature
given in the Technical Speci
fi
cation is not recommended and may result
in damage to the product and compromise safety by creating high surface
temperature.
CAUTION
CAUTION
CAUTION
Corrosive Liquids. Corrosive liquids may eventually produce leak paths
around the sealing surfaces of the product. The product should be
inspected for leaks on a regular basis.
Flooding and Water Immersion. The products covered by this guide
are not designed to operate immersed in water. Refer to the Technical
Speci
fi
cation for the environmental rating.
Condensation. When pumping cold liquids ensure that condensation does
not present a safety hazard. Condensation on the external surfaces of the
magnet cup may result in a short-circuit in the motor controller.
Mechanical Danger. The product must be installed in a location that
exposes it to a low risk of external damage.
Hot Surfaces. Under some operating conditions, surface temperatures can
exceed 90°C (195°F.) Do not touch products while operating. Do not touch
within 30 minutes of system shutdown to allow surfaces to reach safe
handling temperature.
Description
The EagleDrive is a brushless DC motor with integrated controller specially designed to
be electromagnetically coupled to a variety of Micropump pump heads. When properly
assembled to the pump head with sealing o-ring, this comprises a sealed unit where
the driven magnet is within a magnet cup that separates the pumped
fl
uid from the
atmosphere.
The enclosed versions are within a thermoplastic housing. The motor is capable
of rotating in both directions and has several other speed control input options. A
tachometer signal, with a 0-5 V square-wave output provides speed feedback. The
tachometer output has 2 pulses per revolution. The output frequency is multiplied by 30
to obtain RPM. The main input power is 12-36 VDC from a class 2 (SELV) source.
There are two EagleDrive models, the DEMSE and DEELE. Both models are available in
12-36 VDC versions, with speed control and power supply as separate functions. Each
model has 0-5 V square wave tachometer feedback and FWD/REV capability.
Both EagleDrive models can be controlled using one of these options:
1. Externally applied 0-5 VDC supply
2. Externally applied PWM (Pulse Width Modulation) signal
3. Externally applied 4-20 mA signal (conditioned with resistor)
4. Manually-adjusted speed control (through use of potentiometer)
Function
The driven magnet is connected to the pumping parts and is sealed in the magnet cup.
This magnet forms the rotor of the brushless DC motor and is driven by the rotating
magnetic
fi
eld in the stator. Rotation of the pumping elements produces
fl
ow.
The control signal (supplied internally or externally) controls pump speed. Internal
feedback monitors the rotational speed of the pump and regulates the speed in relation to
the control voltage. The controller increases current to regulates speed against increasing
back pressure (within the operating limits of the pump and motor).
Ensure that pumping liquid temperature, and motor housing temperature
are maintained within acceptable range as speci
fi
ed by Micropump
Certi
fi
cation of ATEX Conformity.
