Installation, Electrical - ProMinent Makro TZ Operating Instructions Manual

Installation
Motor The nameplate contains important motor data.
External fan Notes on electrical connection of the motor, of the external fan in the case of variable speed
Stroke sensor (optional)
intrinsically safe 5 -25 V DC, in accordance with Namur and/or DIN 19234 zero volts design.
Page 22
NOTICE
Ensure that dust and foreign bodies cannot penetrate through the upper hose nozzle.
The liquid end may otherwise be damaged.
Connection of flushing collar (TZKa only)
NOTICE
• The flushing medium pressure may not exceed 0.5 bar.
• The rinse aid must be suitable for the feed chemical and the liquid end materials.
• It is essential to fit a flushing assembly if using very aggressive and poisonous media,
or media with low lubrication properties.
Connect the flushing assembly to the hose nozzles via two hoses.
7.2

Installation, electrical

WARNING
• EX pump only: Always observe the "Important supplements for dosing pumps in
EX areas" section of the "General Operating Instruction for ProMinent
Metering Pumps and Hydraulic Accessories"!
NOTICE
• Observe the relevant directives for electrical installation.
• Observe applicable national directives.
• The device must be electrically installed by a trained and qualified person with
corresponding certification.
• Take suitable interference precautions when connecting ohmic/inductive loads.
• The motor must stop immediately if the overpressure sensor is triggered,
the liquid end may otherwise be seriously damaged.
• The diaphragm rupture sensor must be connected electrically!
The customer must install suitable evaluation electronics for the diaphragm rupture
signal and it must be ensured that the dosing pump is switched off after a diaphragm
rupture signal!
• When the drive motor has been stopped by the diaphragm rupture sensor or the
overpressure sensor, it must not restart automatically!
• For safety reason only protective low voltages may be connected to the diaphragm
rupture sensor and the overpressure sensor (SELV according to EN 60335-1).
The wiring diagram is in the terminal box.
motors with external fan and the temperature monitor can be found in the "General Operating
Instruction Manual for ProMinent
Voltage rating: 8 V DC (R ~1 K)
i
Power consumption:
active surface uncovered >3 mA
active surface covered
Nominal switch interval: 1.5 mm
The evaluation/power supply unit must be able to evaluate current changes in order to signal a
diaphragm rupture.
® Motor Driven Metering Pumps and Hydraulic Accessories"!
<1 mA
® Motor-Driven
ProMinent ®