Instruction manual

5 1 Pump / Pressure Control5 1 Pump / Pressure Control
A regulated water supply system is widely used in residence, water plant,
chemical plant, electrical plant, semiconductor plant ... etc. Taking the
advantage of PUMP function, the ETR-3400 can be used for these
A regulated water supply system is widely used in residence, water plant,
chemical
plant, electrical plant, semiconductor plant ... etc. Taking the
advantage
of PUMP function, the ETR-3400 can be used for these
Figure 5.1
A water Supply System
Figure 5.1
A
water Supply System
ETR-3400-4137XX
Kg/cm
2
3
AC
3
AC
Motor
Pump
OUT1
IN1
OUT2
DC20V
4-20 mA
4-20 mA
4-20
mA
4-20
mA
Speed
Control
Speed
Control
AC
Inverter
Water
Water
Pressure
Sensor
Pressure
Sensor
Pressure
Reservoir
Pressure
Reservoir
Pressure Reservoir: Providing a smoother pressure for the system.Pressure Reservoir: Providing a smoother pressure for the system.
The water pressure is required to be controlled at 10 Kg/cm , to achieve this,
the following devices are used for this example:
The water pressure is required to be controlled at 10 Kg/cm , to achieve this,
the
following devices are used for this example:
2
Pressure Sensor: A three-wire or two-wire type pressure transducer with 0-20
Kg/cm range.
Pressure Sensor: A three-wire or two-wire type pressure transducer with 0-20
Kg/cm
range.
2
Pump: An economical typePump: An economical type
Motor: A 3- induction motor.Motor: A 3- induction motor.
Inverter: To supply a variable frequency AC voltage to the motor.Inverter: To supply a variable frequency AC voltage to the motor.
ETR-3400-4137XX: Order a ETR-3400 with standard input, 4-20 mA output 1,
20V DC output 2 for sensor power.
ETR-3400-4137XX: Order a ETR-3400 with standard input, 4-20 mA output 1,
20V
DC output 2 for sensor power.
82
PUMP: A Cost Effective
yet Perfect Solution
PUMP: A Cost Effective
yet
Perfect Solution
Chapter 5 ApplicationsChapter 5 Applications
O1
O2
A1
F
ETR-3400