MANUAL FOR PUMP C0NTROLLER 703MANUAL FOR PUMP C0NTROLLER 703
MANUAL FOR PUMP C0NTROLLER 703
MANUAL FOR PUMP C0NTROLLER 703MANUAL FOR PUMP C0NTROLLER 703
Contents:Contents:
Contents:
Contents:Contents:
General information 3
Ultrasonic measuring system 3
Hydrostatic measuring system 3
Amplifier 703 4
Mounting 4
Electrical connection 5
Dimensions 6
Specifications 6
Maintenance 6
Orderingnumbers 6
Ultrasonic sensor 7005 7
Pressure transmitter 7050/7060 8
M703GB/9607
Page 1
CE – CERTIFICATE OF CONFORMITY
This product complies with the requirements concerning electromagnetic
compatibility (EMC) stipulated in Council directive no. 89/336/EEC of 3rd
May 1989, altered at directive no. 92/31/EEC, on the approximation of the
laws of the Member States relating to electromagnetic compatibility.
MJK Automation A/S declare that the product complies to the values
stipulated in EN 50081-1 and EN 50082-1.
Page 2
General InformationGeneral Information
General Information
General InformationGeneral Information
The MJK 703 Pump Controller is a compact unit designed
for the control of liquid levels in 2-3 pumps or valves
between four variable level settings. The Pump Controller
has 3-digit continuous display of level measurements.
Ultrasonic MeasuringUltrasonic Measuring
Ultrasonic Measuring
Ultrasonic MeasuringUltrasonic Measuring
HydrHydr
Hydr
HydrHydr
SystemSystem
System
SystemSystem
If hydrostatic measuring system is applied (703P), the
pump controller is delivered with a pressure transmitter for
either absolute or relative pressure.
At absolute pressure transmitter type 7050 measures the
hydrostatic pressure in the liquid (at the bottom). The
amplifier has a build-in pressure compensation.
ostatic Measuringostatic Measuring
ostatic Measuring
ostatic Measuringostatic Measuring
SystemSystem
System
SystemSystem
The ultrasonic sensor has a moulded-in piezoelectric
crystal which emits an ultrasonic signal and receives an
echo signal from the surface measured. The amplifier
converts the signals received from the sensor to a levelproportional signal which is used for display of level values
and for maximum and minimum level monitoring within the
six limit settings.
At relative pressure transmitter type 7060 is used, this
transmitter has a tube for pressure equalizing. The
measured bottom pressure is equalized with the surface
pressure via the tube, and the transmitter directly
measures the correct liquid pressure.
The 4-20 mA signal from the transmitter is sent to the
amplifier, where the level is indicated and the start / stop /
alarm signals are processed.
When measuring in pressure tanks, the maximal pressure
(super-pressure + liquid pressure) must not exceed the
range of the connected transmitter.
Page 3
Amplifier 703Amplifier 703
Amplifier 703
Amplifier 703Amplifier 703
OperationOperation
Operation
OperationOperation
The Pump Controller is operated by means of a display
selector which can be set to a number of positions for the
reading of level values during operation, as well as for
resetting. The Controller is designed for continuous
operation - also during calibration - so the selector cannot
be „forgotten“ in a calibrating position thereby disturbing or
spoiling the control action.
Start and stop levelsStart and stop levels
Start and stop levels
Start and stop levelsStart and stop levels
Set the start, stop and alarm levels by turning the selector
switch to the desired position, and adjust the relevant
potentiometer.
Note: To obtain the best accuracy when adjusting, the
potentiometer settings are relative to the chosen 0-level (for
ultrasonic measurig systems) or range (for hydrostatic
measuring systems)
If the 0-level/range is set for e.g. 3 m, the range for start/
stop and alarms will be limited to 0 - 2.25 m (ultrasonic) or
0 - 3 m (hydrostatic).
The amplifier has logic for both filling and emptying. When
the starting levels are set lower than the stopping levels, the
pumping action will be filling. When the starting levels are
set higher than the stopping levels, it will be emptying. This
logic prevents dry pumping in the event of failure.
the alarm indicator for ERROR will be lit. When an error is
detected, the pump controller will prevent the pumps from
running. The detected error can be set to activate one of
the output relays, see futher in section "Selection of output
signals".
Exceeding the measuring rangeExceeding the measuring range
Exceeding the measuring range
Exceeding the measuring rangeExceeding the measuring range
If the measurement exceeds the measuring range, the
amplifier will indicate that the measuring range has been
exceeded by showing three lit-up points in the display e.g.:
„0.5.6.“
Selection of output signalsSelection of output signals
Selection of output signals
Selection of output signalsSelection of output signals
A three-pole switch for coding of the output signals and
three potentiometers for time delay adjustment are located
on the back of the top circuit board.
Switch positions:Switch positions:
Switch positions:
Switch positions:Switch positions:
AlternatingAlternating
Alternating
AlternatingAlternating
The alternation selector is set to „NORMAL“ or „ALTERNATING“ as desired.
In the „NORMAL“ position the „level 1“ settings will control
pump no. 1 and the „level 2“ settings will control pump no.
2.
In the „ALTERNATING“ position „level 1“ will control pump
no. 1 and pump no. 2 alternately, and „level 2“ will act in
reverse.
Alarm levelsAlarm levels
Alarm levels
Alarm levelsAlarm levels
The setpoints for high and low alarm are adjusted as
follows: Turn the display selector to „level 3 high“ or „level
4 low“ as required, and turn the relevant potentiometer until
the desired level is displayed.
For low alarm, the alarm starts at the setpoint and
disconnects approx. 1% above the setpoint. Similarly, the
high alarm begins at the setpoint, and ceases approx. 1%
belove it.
The two alarm relays are active for normal levels, and idle
during alarm. The relays may instead be connected to the
echo failure circuit by means of the changeover switches
mentioned in section "Setting of output signals".
Adjustment of current outputAdjustment of current output
Adjustment of current output
Adjustment of current outputAdjustment of current output
Set the changeover switch located on the underside of the
top circuit to 0-20 or 4-20 mA (standard setting at delivery
4-20 mA). Set the selector switch to „mA OUTPUT“. Then,
by means of the mA OUTPUT SPAN potentiometer, set the
output current in per cent of 0-20/4-20 mA corresponding
to the value measured at the time.
1: mA output 4 - 20 mA 0 - 20 mA
2: Relay 4 Low level alarm Echo failure alarm
3: Relay 3 High level alarm Echo failure alarm
The three potentiometers have the following functions:The three potentiometers have the following functions:
The three potentiometers have the following functions:
The three potentiometers have the following functions:The three potentiometers have the following functions:
TIME DELAY RELAY 2:
In order to prevent simultaneous activation of two large
motors, Relay 2 may be set to delayed triggering. Delays
between 0 and 20 secs may be set.
TIME DELAY RELAY 3:
The Relay 3 alarm, whether usedas high alarm or echo
failure alarm may be delayed 0.1 - 5 mins.
TIME DELAY RELAY 4:
The Relay 4 alarm, whether usedas low alarm or echo
failure alarm may be delayed 0.1 - 5 mins.
MountingMounting
Mounting
MountingMounting
The amplifier can be mounted directly on a wall. For panel
mounting a mounting kit can be ordered. For outdor
mounting a local mounting kit with rain roof can be
ordered.
ERROR alarmERROR alarm
ERROR alarm
ERROR alarmERROR alarm
If the transmitter is wrongly connected, or if the wire is cut,
Page 4
Electrical ConnectionElectrical Connection
Electrical Connection
Electrical ConnectionElectrical Connection
703U Ultrasonic Pump Controller 703U Ultrasonic Pump Controller
703U Ultrasonic Pump Controller
703U Ultrasonic Pump Controller 703U Ultrasonic Pump Controller
Supply
Ultrasonic sensor
703P Pressure Pump Controller 703P Pressure Pump Controller
703P Pressure Pump Controller
703P Pressure Pump Controller 703P Pressure Pump Controller
Supply
Pressure transmitter
ExamplesExamples
Examples
ExamplesExamples
Installation with 2 pumps, high and low alarmInstallation with 2 pumps, high and low alarm
Installation with 2 pumps, high and low alarm
Installation with 2 pumps, high and low alarmInstallation with 2 pumps, high and low alarm
Controloutput 1
pump/ valve
Controloutput 1
pump/ valve
Controloutput 2
pump/ valve
Controloutput 2
pump/ valve
Alarm
high level
Alarm
high level
Alarm
low level
Alarm
low level
mA-output
0-20/4-20mA
mA-output
0-20/4-20mA
Installation with 3 pumps (2 operational and 1 stand-by)Installation with 3 pumps (2 operational and 1 stand-by)
Installation with 3 pumps (2 operational and 1 stand-by)
Installation with 3 pumps (2 operational and 1 stand-by)Installation with 3 pumps (2 operational and 1 stand-by)
Page 5
DimensionsDimensions
Dimensions
DimensionsDimensions
SpecificationsSpecifications
Specifications
SpecificationsSpecifications
Amplifier 703Amplifier 703
Amplifier 703
Amplifier 703Amplifier 703
Measuring range: Determined by sensor
Voltage: 220 - 240 / 110 - 120 / 24V AC
Consumption: Approx. 10 VA
Temperature: –20 - +60
Input signal: From ultrasonic sensor,
pressure transmitter or
4-20 mA
Accuracy: ±1%
Outputs:
Analog: 0 - 20/4 - 20 mA max. 500W
Digital: 4 relays with voltage free
change-over contact
Inductive load: 250V, 4A ohmic, max. 100V A.
Indication: 3-digit LED display
Operation: From front panel
Dimensions: 185 x 240 x 115 mm (HxWxD)
Materials: Polystyrol with clear cover
CE: EN50081-1, EN50082-1
Housing: IP 65
O
C.
MaintenanceMaintenance
Maintenance
MaintenanceMaintenance
The amplifier and the ultrasonic sensor does not
demand any particular maintenance.
When cleaning the presure transmitter, care must be
taken not to damage the membrane.
Ordering Details:Ordering Details:
Ordering Details:
Ordering Details:Ordering Details:
Part no.: Specification:Part no.: Specification:
Part no.: Specification:
Part no.: Specification:Part no.: Specification:
201020 703U-1111 Ultras. Pump Control. 0-10 m, with 7005-1013
202004 703P-1103 Pump Controller without transm., input 4-20mA
(only absolute pressure)
202010 703P-1104 Pump Controller without transm., input 4-20mA
202017 703P-1114 Pump Controller with 7060-1413, range 0-3 m
202019 703P-1124 Pump Controller with 7060-1423, range 0-10 m
202021 703P-1134 Pump Controller with 7060-1433, range 0-30 m
202015 703P-1113 Pump Controller with 7050-1413, range 0-10 m
(Absolute pressure transmitter with compensation)
Accessories for AmplifierAccessories for Amplifier
Accessories for Amplifier
Accessories for AmplifierAccessories for Amplifier
200105 Panel mounting kit
200115 Local mounting kit with rain roof
Accessories for Sensor 7005Accessories for Sensor 7005
Accessories for Sensor 7005
Accessories for Sensor 7005Accessories for Sensor 7005
200220 Bracket for 7005
200590 Cable connection box for 7005
200595 Cable length not standard for 7005
690010 Cable for 7005
Accessories for Pressure TransmittersAccessories for Pressure Transmitters
Accessories for Pressure Transmitters
Accessories for Pressure TransmittersAccessories for Pressure Transmitters
202920 Cable length not standard
202922 Cable connection box for pressure transmitters
202923 As 202922, with plug for programming unit
691010 Cable for 7050
691014 Cable for 7060
Page 6
Ultrasonic sensor 7005Ultrasonic sensor 7005
Ultrasonic sensor 7005
Ultrasonic sensor 7005Ultrasonic sensor 7005
MountingMounting
Mounting
MountingMounting
The sensor is mounted near the top of the well or container
where no tubes or cables obstruct the path between the
sensor and the surface of the liquid. The maximum distance between the sensor and the surface of the liquid
must not exceed 10 m. The best performance is obtained
by placing the sensor 1 m above the maximum level
desired (high alarm level).
The sensor should be positioned at precisely
perpendicular to the liquid surface (using a spirit level).
There must allways be at least 75 cm from max level to the
bottom of the sensor.
Where a sensor is mounted above an obstruction ex. a
concrete deck, we recommend that it should be
installed as shown below:
Table value +50%
If the upward edges cannot be angled as shown, the
width should be table value +100%.
Min. 200 mm
Sensor mounted in tube
for scum protection.
SpreadingSpreading
Spreading
SpreadingSpreading
The table shows
the spreading of
the sensor signal
for different
measuring ranges
selected, and i.e.
for different level
values.
Min. 75 cm
o
45
Sensor mounted near the
top of a closed container.
Table value
+25%
When measuring through a hole in ex. a metal plate or
grate, a pipe that ends near the end of the sensor
should be applied as shown.
SpecificationsSpecifications
Specifications
SpecificationsSpecifications
Ultrasonic Sensor 7005-1013Ultrasonic Sensor 7005-1013
Ultrasonic Sensor 7005-1013
Ultrasonic Sensor 7005-1013Ultrasonic Sensor 7005-1013
Measuring range: 0,75 - 10 m
Frequency: 30 kHz
Beam spread: 3
Temperature: –20 - +60 OC
Dimensions: ø103 x 94 mm
Materials: Reflector: PP, green
Cable: 12 m shielded oilresistant PVC,
Housing: IP 68, waterproof,
O
Inner parts: POM, black.
can be extended to 100 m
withstands immersion max. 1 bar
45
o
Setting of zero levelSetting of zero level
Setting of zero level
Setting of zero levelSetting of zero level
Set the selector switch to „ZERO LEVEL“. Measure the
distance from the lower edge of the sensor to the bottom of
the pump well and set this in centimetres on the ZERO
LEVEL potentiometer.
If the well is empty, the following method may be used:
Set the selector switch to position „LEVEL“. The sensor will
then be working against the bottom of the empty well. The
ZERO LEVEL potentiometer is now set to zero. To check
this setting, turn the selector switch to „ZERO LEVEL“ and
read the distance to the bottom in centimetres as
displayed.
Page 7
PrPr
essuressur
Pr
essur
PrPr
essuressur
7050 / 70607050 / 7060
7050 / 7060
7050 / 70607050 / 7060
MountingMounting
Mounting
MountingMounting
The Pressure Transmitter is hung inside
the well or container
where measurement is
desired. It is practical
to mount it in a tube,
fastening it at the top
end of the tube by
means of the fittings
supplied as this
facilitates subsequent
cleaning and
inspection.
e transmittere transmitter
e transmitter
e transmittere transmitter
Bracket
Min. 65mm
inside
SpecificationsSpecifications
Specifications
SpecificationsSpecifications
Pressure Transmitter 7050 or 7060Pressure Transmitter 7050 or 7060
Pressure Transmitter 7050 or 7060
Pressure Transmitter 7050 or 7060Pressure Transmitter 7050 or 7060
Measuring ranges:
0-10m Pressure Transmitter 7050-1413,(absolute press.)
0-3m Pressure Transmitter 7060-1413,(gauge pressure)
0-10m Pressure Transmitter 7060-1423,(gauge pressure)
0-30m Pressure Transmitter 7060-1433, (gauge pressure)
Function: 2-wire, 4-20 mA
Accuracy: ±1%
Temperature: –10 - +60
Dimensions: ø60 x 140 mm
Materials: House: PP
Diaphragm: Acidproof steel, AISI 316 L
Cable: 2 x 0,5mm², length=12m
(with 7060-1433: 35m), can be extended
Mounting: Immersed from supplied bracket
Housing: IP 68, waterproof, max. 3 bar
O
C
Zero, span and response timeZero, span and response time
Zero, span and response time
Zero, span and response timeZero, span and response time
The response time is set to minimum at delivery. When
replacing the Pressure Transmitter or when using the MJK
703P for differential level measurement or measurements in
pressure or vacuum tanks, it may be necessary to set the
zero point as well as the span. The setting is carried out by
simulating the zero point and the span. Depending on the
use, it may also be necessary to reset the response time.
If the Pump Controller is used for liquids with a specific
gravity different from that of water (e.g. sludge), the span
will need to be adjusted.
Page 8
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