Aquametro CONTOIL VZF II Service manual

Mounting and operating instructions Page 3 –47
CONTOIL®DN15 - 50
VZF II / VZFA II
Table of content
1Safety 3
2Product description 5
3Installation 7
4Operation 17
5Maintenance and Repair 29
6Troubleshooting 32
7Decommissioning, Dismantling and
Disposal 35
8Technical Data 36
9Appendix 47

2CONTOIL® DN15 - 50

CONTOIL® DN15 - 50 3
1 Safety
1.1 Intended Use
The CONTOIL®flow meter is designed and solely intended for the flow measurement of Diesel
oil to Heavy Fuel Oil according to ISO 8217-2010
Improper or non-intended use may lead to the operational reliability of the device and is no
longer guaranteed. The manufacturer accepts no liability for any resulting damage to human
and material.
1.2 Notes on safety rules and symbols
The devices are designed to meet the latest safety requirements. They were tested and deliv-
ered in a condition that ensures safe operation. Improper or non-intended use of the devices,
can however, be dangerous. Therefore pay particular attention to the safety instructions within
this manual always shown by the following symbols:
WARNING
WARNING indicates a hazardous situation which, if not avoided, could result
in death or serious injury.
CAUTION
CAUTION indicates a hazardous situation which, if not avoided, could result
in minor or moderate injury.
NOTICE
NOTICE indicates a hazardous situation which, if not avoided, could result in
property damage.
NOTE
NOTE indicates helpful tips and recommendations, as well as information for
efficient and trouble-free operation.
See doc VDxxxx, page ## or
See section XX on page ## or
WEB link to QR code

4CONTOIL® DN15 - 50
1.3 Safety rules and precautionary measures
The manufacturer accepts no responsibility if the following safety rules and precautions are
disregarded.
Modifications of the device implemented without preceding written consent from the
manufacturer, will result in the immediate termination of product liability and warranty
period.
Installation, operation, maintenance and decommissioning of this device must be car-
ried out by trained, qualified specialists, authorized by the manufacturer, operator or
owner of the facility. The specialist must have read and understood these Installation
and Operating Instructions and must follow the instructions here in.
Check the voltage and the information on the type plate before installing the device
Check all connections, settings and technical specifications of peripherals which may
be present.
Open the housing or parts of housings, which electric or electronic components in-
cluded, only when the electric power is turned off.
Do not touch any electronic components (ESD sensitivity).
Expose the system with respect to the mechanical load (pressure, temperature, IP
protection, etc.), only to a maximum of the specified classifications.
During operations that involve mechanical components of the system, release the
pressure in the pipe system or reduce the temperature of the medium to a safe level
for humans
None of the information stated here or elsewhere releases planners, installers and
operators from their own careful and comprehensive assessment of the respective
system configuration in terms of functional capability and operational safety
The local labor, safety laws and regulations must be adhered to.
1.4 About the operation manual
The manufacturer reserves the right to make changes to technical data without notice. The
latest information and versions of these operating instructions, can be requested at your local
dealer.
WARNING
The manufacturer accepts no responsibility if the instructions and
procedures as described in this manual are not followed!
NOTICE
This installation guide is intended for qualified personnel and therefore does
not include basic working steps.
Before operating the equipment or system, this Installation and Operating
Instructions must be completely read and understood.
Keep these instructions for later look up!

CONTOIL® DN15 - 50 5
2 Product description
2.1 Scope of supply
1 Flow meter with electronic display unit.
1 mounting and operating instruction (this manual)
2.2 Flow meter configuration
The CONTOIL®flow meters consist of a hydraulic part, a coupling with temperature sensor
included and an electronic display unit.
The hydraulic part determines the nominal size of the flow meter.
The flow meters are calibrated before they leave the factory. Nevertheless, for optimal results
of differential measurement, flow meters of VZFA II with either a pairing or a special linearized
calibration should be used.
Electronic display unit VZF II / VZFA II
local electronic display unit with 2 pulse output and 1 passive analog current loop
For details, see dimensional drawings in
Technical Data on page 42.
2.3 Handling, Transport and Storage
We congratulate you on purchasing this high-quality instrument. Please check all components
and parts delivered promptly after the receipt of goods.
Hydraulics
Display unit
with coupling and
temperature sensor

6CONTOIL® DN15 - 50
2.4 Return of materials
Never send a device/system back if you are not absolutely certain that all traces of
hazardous substances have been removed, e.g. substances which have penetrated
crevices or diffused through plastic.
Costs incurred for waste disposal and injury (burns, etc.) due to inadequate declara-
tion and/or cleaning will be charged to the delivering company or the operator.
For a device that is sent back to Aquametro Oil & Marine AG for repair or calibration the fol-
lowing point are an absolute must:
Always quote type and serial number when contacting an Aquametro Oil & Marine
AG office or a Aquametro representative.
Always enclose a duly completed "Declaration of decontamination” form (FO0451e).
Only in special cases (e.g. for the reconstruction of causes of errors) and only with
the prior consent of the Aquametro AG, equipment must be returned in the unpurified
state. In this case also the contact person at Aquametro Oil & Marine AG, which has
granted the approval to return a crude device must be stated.
Only then Aquametro AG can transport, examine and repair a returned device.
Use form FO0451e.

CONTOIL® DN15 - 50 7
3 Installation
CAUTION
The surfaces of the device/system and the medium may be hot.
Risk of burns!
Carry out work only on cooled devices/systems.
Work may only be performed by authorized specialists in
accordance with the applicable regulations.
Use appropriate protective equipment.
WARNING
The device/system may be under pressure.
Risk of severe injury!
Carry out work only on non-pressurized systems.
When working on the device/system watch out for leaking medium.
Work may only be performed by authorized specialists in
accordance with the applicable regulations.
Use appropriate protective equipment, particularly safety googles
3.1 Mounting
Flow meter installation
Identify the flowmeter and ensure that the flowmeter is suitable for the intended process and
conditions. Easy access for reading the flow meter and controlling the ancillary equipment is
important. Provided that the arrow on the housing is in the direction of flow, the flow
meter can be installed in any position without any special modifications.
The electronic display unit is rotateable in 90° steps to the installed position.

8CONTOIL® DN15 - 50
Exception: upside down installation.
Flow conditioners are unnecessary.
NOTE
The layout of piping must ensure that the flow meter is filled with liquid at all
times and that no inclusions of air, foam or gas may occur.
Aquametro Oil & Marine AG recommends to install bypass valves.
The quantities from all consumers must be registered by the flow meter.
Correct layout of flow meter and accessories
If the flow meter is used for viscosities higher than 5 mPa.s, or if it is mounted on the suction
side of a pump, the pressure loss and the flow rate that can still be attained should be
determined with the help of the pressure loss curves provided in CONTOIL®Technical
Information. In addition, the pressure loss due to installed filters must be taken into
consideration.
Tank
Pump
Non-Return
Valve
Flow meter
Flow meter
Tank

CONTOIL® DN15 - 50 9
Select the flow meter and ancillaries according to the working conditions listed below:
Flow rate (maximum expected application flow rate = maximum continuous flow rate of
flow meter Qcont)
Material compatibility with medium
Operating pressure and temperature
Ambient temperature
The flow meters must be selected according to the max. flow rate and not according to
the pipe diameter. If necessary, adapt the pipework.
Non-Return-Valves
In order to avoid backflow and draining, Non-Return-Valves must be mounted after the flow
meter. Backflow and draining can cause faulty measurements and may damage the flow meter.
Pulsations at the flow meter shall be avoided to ensure a trouble free operation of the
instrument.
Dirt filter, Safety filter
Filters should be fitted to prevent any damage to the flow meter from impurities in the oil.
Maximum mesh width for filters
Nominal
Flow meter type
size
VZF II
VZFA II
DN15
0.250mm
0.100mm
DN20
0.400mm
0.100mm
DN25
0.400mm
0.250mm
DN40
0.600mm
0.250mm
DN50
0.600mm
0.250mm
Filter
Non-Return-Valve
Flow meter
Pump
Tank

10 CONTOIL® DN15 - 50
NOTICE
The filter mounted in the flow meter inlet is only a safety filter and can not
act as a dirt filter.
Risk of malfunction or damage.
If the medium contains dirt always have a dirt filter installed
upstream of the flow meter .
Heat insulation
The electronic counter must not be insulated. This could cause its permitted temperature range
to be exceeded.
The permitted temperature ranges for the flow meter must be observed.
Special requirements - differential measurements
For differential measurements, one flow meter is installed in the supply pipeline and one in the
return pipeline. The flow difference between these meters determines the consumption.
If ordered with the "differential measurement" option, VZFA II flow meters are calibrated in
accordance with the indicated supply and return flow volumes. The flow meters are labeled
“SUPPLY” and “RETURN”. Make sure that these flow meters are installed in the correct
pipeline, i.e. the supply flow meter shall be installed in the supply pipeline and the return flow
meter shall be installed in the return pipeline.
Flow meter
Flow meter
Return
Supply
Pump
Filter
Engine
Tank

CONTOIL® DN15 - 50 11
Special requirements - ships
On ships, attention is required to ensure that the engine can continue to operate at full power
even if there is heavy filter contamination or if the flow meter requires maintenance. A pressure
switch can be used to switch over to the bypass and to draw attention for servicing. The engine
then continues to operate but without consumption measurements.
Ship classification societies require the installation of bypass pipes. The relevant regulations
must be followed.
Pressure switch
Filter
Pump
Monitor
Valve
Valve
Tank
IAS
Engine
Solenoid valve
Flow meter
Pressure switch
Filter
Pump
Monitor
Valve
Valve
Tank
IAS
Engine
Solenoid valve
Flow meter
Return
Intermediate
tank
Supply

12 CONTOIL® DN15 - 50
Installation of the flow meter on the suction side of a pump
If the flow meter is installed on the suction side of a pump, consideration must be given to avoid
air-intake or foam.
Installation of the flow meter on the pressure side of a pump
Special requirements - filling and dosing units
For filling and dosing, the valve must be fitted between flow meter and discharge.
The shorter the pipe section between valve and discharge, the higher the accuracy.
Avoid water hammer if fast closing valve is installed.
Flushing of pipes
If the pipes are to be flushed at a later stage, stop valves shall be provided on both sides of the
flow meter.
NOTICE
Accumulation of debris will occure in front of the stop-valve during flushing.
To eliminate this, replaced the flow meter with a spool piece.
Filter
Pump
Flow meter on pressure side
Filter
Flow meter on suction side
Pump
flushing
measuring
Filter
Valve
Flow meter
Pump

CONTOIL® DN15 - 50 13
3.2 Mechanical installation
WARNING
Leakage or rupture due to connections being made using force.
Risk of severe injury!
Risk of substantial property damage!
Never attempt to overcome misalignments (lateral, angular,
longitudinal, torsional) using force.
Make sure the pipings are flexible enough, if not: use compensators.
Consider the effects of thermal contraction and expansion.
WARNING
Leakage or rupture due to misuse of the mounting material.
Risk of severe injury!
Risk of substantial property damage!
Regarding mechanical strength, with bolts, screws and nuts, use the
prescribed dimensions.
Use the full number of bolts, screws and nuts.
Observe the prescribed thread lubrication (grease or dry!).
Tighten the bolts and nuts in the proper sequence to the specified
torque.
If using flanged connections, the correct number of bolts must be fitted and they must be
tightened with the correct torque in accordance with the screw manufacturer’s instructions.
Make sure that no hazardous fumes can build up in the piping and in the flow meter during
commissioning, decommissioning and dismantling. The flow meter must at all times during
operation be completely filled with liquid. Check the flow meter periodically for tightness of the
connections and for proper functioning. If work is to be done on the installation, before each
intervention: release the pressure in the installation if hazardous liquids are used, wear
protective clothing and safety goggles, place a collecting tray underneath the installation.
Preparing for installation
Check flow meters and installation material.
Compare the data of the flow meter name plate with the expected maximum conditions of the
installation. They may not exceed the flow meter specifications:
Maximum continuous flow rate (Qcont l/h)
Maximum operating pressure (PN bar)
Maximum temperature (°C)
Appropriate connections( threaded, or flanged) and seals (gaskets)
Fasteners for the flow meter
Resistance to liquid to be metered and temperature

14 CONTOIL® DN15 - 50
CAUTION
Unauthorized start-up while mounting.
Risk of injury!
Make sure that unauthorized start-up is not possible while
mounting.
Comply with the appicable working regulations during all work on the
system.
NOTE
When existing systems are altered:
Take the flow meter out of operation in order to flush the system clean of
debris. Flushing information on page 12.
Trial operation
Start trial operation (without flow meter); open the stop valves slowly when doing this.
Carry out a pressure test in the plant
Check for leaks and tightness of all bolts
Flush the pipework until clean (flow meter out of pipeline)
Release the pressure and stop the system again
This trial operation ensures that all pipework is tight, clean and free of foreign matter that could
damage the flow meter.
Installing the meter in the pipe
Remove the protection plugs or caps from the flow meter (inlet and outlet).
Insert the flow meter into the pipeline in the prescribed position and flow direction. The arrow
on the flow meter should correspond with the direction of flow. Install mating flanges parallel
and without tension in the pipe.
NOTICE
Mechanical connection of flow meter into the pipe systems.
Risk of leackage
Always use appropriate sealing material as per connection type.

CONTOIL® DN15 - 50 15
For pipes made of copper or thin-walled steel, the flow meter requires additional supports. Use
appropriate fasteners.
3.3 Electrical Installation
NOTICE
Electrical connection to power supply and other systems.
Risk of malfunction or damage
Review of technical data, chapter 8.1
3.4 Electrical connection
VZF II / VZFA II
Made in Switzerland
9

Pt1000 RTD
Cable connection
Cable gland
1/2
Power supply /
output current loop (passive)
-
Strain relief: Version A according to EN
62444
3/4
Output 1 (passive)
-
Thread: M25x1.5
5/6
Output 2 (passive)
-
Clamping range: 10.0mm - 17.0mm
7/8
Reserve
-
Key width: 29 mm
9
Temperature sensor Pt1000
NOTE
Wire size for terminal 1–6 is: 0.75…1.5mm2 / 20…16 AWG
Meter with flanged ends
Meter with threaded ends
X
X
Sensor area! (Sensor dome)
No cables, wires or other installation material
must be present in this area. This can lead to
incorrect measurements and damage to the
meter.
Solid state relay (out1 & out2
RON ≤ 100Ohm, RefOFF ≥ 10MOhm
Umax ≤ 48VAC/VDC, Imax ≤ 50mA

16 CONTOIL® DN15 - 50
3.5 Mounting of electronic display unit
NOTE
The display can be rotated +/-270° in 90° steps during installation to
improve readability.
NOTICE
Electrical connection to Pt1000 temperature sensor.
Risk of malfunction or damage
Ensure not to pinch cable while mounting electronic display unit onto
coupling.
Guide cable around sensor dome
Electronic display unit shall not be rotated more than 270° in same
direction
NOTE
Tighten bolts of electronic display housing with 2Nm of torque to the
coupling.
Factory setting of outputs
Output 1: Out.1 –Volume pulses: 50ms, 1Ltr/pulse (exception: DN15 is set to 0.1Ltr/pulse)
Output 2: Out.2 –Volume pulses: 50ms, 1Ltr/pulse (exception: DN15 is set to 0.1Ltr/pulse)
Analog: disabled
3.6 Engineering notes
Parameterizing ancillary devices
Some ancillary devices require programming of pulse values or frequency (see the relevant
operating instructions).
The maximum frequency is calculated with the following formula:
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CONTOIL® DN15 - 50 17
4 Operation
NOTE
Modification of operation settings may result in faulty or wrong
measuring results.
Multiple output functions are available, any of these functions can be used simultaneously.
2 potential-free digital outputs (Out.1 + Out.2), each freely programmable The passive current
loop is also used to power the flow meter at the same time.
Default settings:
Volume pulses; for external totalizer or monitoring systems.
Flow / Frequency; output 0...200Hz corresponding to flow rate.
Limiting switch; Switching function with programmable high and low flow rate
(NO / NC).
Status switch; control functions for Errors, Alarms and Supply Voltage (NO / NC).
Analog current loop 4...20mA corresponding to actual flow rate or actual temperature
of the medium
Compensation to Norm-Volume:
Compensation to norm-volume can be turned on, this means that the volumetric expansion
of the medium is calculated using actual temperature to its normalized volume (15°C).
The following outputs will change from volume only to compensated norm-volume.
Therefore, output values will have the following functions:
Volume pulses; for external totalizer or monitoring systems (50% Duty cycle).
Flow / Frequency; output 0...200Hz corresponding to flow rate.
Analog current loop 4...20mA corresponding to actual flow rate or actual temperature
of the medium.
Mass flow calculation:
Calculation to mass flow can be turned on, this means that the normalized volume of the
medium based on base density (15°C) and actual temperature is calculated to mass / mass
flow.
The relevant parameters are added and are displayed accordingly:
Therefore, the following outputs are added and can be set accordingly:
Mass pulses; for external totalizer or monitoring systems.
Mass Flow / Frequency; output 0...200Hz corresponding to mass flow rate.
Analog current loop 4...20mA corresponding to actual mass flow rate.

18 CONTOIL® DN15 - 50
4.1 Commissioning
Startup and commissioning of mechanical part of flow meter, without programming any
electronic counter (VZF II and VZFA II).
Open valves slowly, fill pipework gradually. Vent the installation well.
Water hammer must be avoided in order not to damage the flow meter. Inclusions of air cause
measuring errors in all types of flow meter and can damage them during operation.
Check the tightness of the connections watch for leakages.
Function check with electronic display: read the instantaneous flow value.
Should the established flow rate be greater than the specification of the flow meter (Qcont),
either a flow control valve (throttle) must be inserted behind the flow sensor or a larger size
flow meter must be used.

CONTOIL® DN15 - 50 19
4.2 Display and operation
The display shows 8-digits with a decimal point or text messages using letters. Units of
measurement and additional items of information are shown with symbols.
The references to these are shown in square brackets, e.g. [o1VoLum].
Use Step key to scroll the menu and to change field values.
Use Enter key to enter submenus and to edit / confirm field entries.
The display data and parameters are split into two menu groups:
Main Menu: displays measured data, accesses other menus, tests display segments
and displays error or alarm messages (if present).
Setup Menu: displays parameter settings for the display, output signals, additional
information about the flow meter and operating status.
When entering the access code, adjustment of parameters are possible
Enter key
Step key
units
actual value
flow bar
options to
actual display

20 CONTOIL® DN15 - 50
4.3 Parameterizing
In order to adjust the parameters, scroll to the [SEtUP] item from the Main Menu and press the
Enter key .
No code is required to view parameters.
To adjust any parameter in the Seutp menu, the device must be unlocked ( ) with the user
code. Press both keys ( + ) simultaneously for 4 seconds until [CodE0000] is displayed.
Press Enter again and the first right digit will start flashing, which means, the unit is ready for
the entry of the first digit of the user code 1111.
Enter the first digit by using the Step key. Press the Enter key to accept the value (in our case
1) and to move to the second right digit. Continue this way to enter all code digits.
At the end of the procedure a will be displayed. The flow meter is now in the edit mode and
parameters can be changed.
If no key is pressed within 1 minute, the device returns to the “home” display but the edit mode
is still active (15 minute timeout). Any entries that have not been completed by
pressing the Enter key are rejected.
Parameterizing the flow meter data
In order to guarantee accurate measurement, the electronic module of the flow meter
requires adjustment. During factory calibration, the data for nominal size and the exact
measuring chamber volume are entered for this purpose. These parameters cannot usually be
changed again.
If the display shows [UNCAL] the flow meter is not calibrated.
If the electronic counter has to be replaced, please mention the serial number of the defective
counter in your communication. Spare parts are set to the appropriate hardware size.
Reset of subtotalizers
To reset all subtotalizers, go to subtotalizer volume (*),
Press and hold both buttons for 4s until the counter are reset.
4.4 Main Menu
The Main Menu displays most important measured data and accesses the setup menu.
The standard “Home” display of the Main Menu is the volume total [TOT], when Mass
compensation is turned on the “Home” display is mass total [TOT].
Quich return to “home”: quickly press both key simultaneously.