Aquametro Oil & Marine CONTOIL DN15 Service manual

Mounting and operating instructions
CONTOIL®DN15 - 50
VZO / VZOA
Table of contents
1Safety 2
2Product description 4
3Installation 6
4Operation 16
5Maintenance and Repair 17
6Troubleshooting 20
7Decommissioning, Dismantling and
Disposal 21
8Technical Data 22
9Appendix 23

2CONTOIL® DN15 - 50
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

CONTOIL® DN15 - 50 3
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!

4CONTOIL® DN15 - 50
2 Product description
2.1 Scope of supply
1 Flow meter with mechanical counter.
1 mounting and operating instruction (this manual)
2.2 Flow meter configuration
The CONTOIL®flow meters consist of a hydraulic part, a coupling and an mechanical
counter.
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 VZOA with special calibration (pairing) should be
used.
Mechanical counter VZO / VZOA
local mechanical display with or without pulse output
For details, see the dimensional drawings in
Appendix, chapter 9. on page 23
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.
FL: DN15 - 50
RC: DN15 - 40
Hydraulics
Display units

CONTOIL® DN15 - 50 5
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 Oil & Marine 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 Oil & Marine AG can transport, examine and repair a returned device.
Use form FO0451e_Declaration of Decontamination
and FO0301e_Return Form

6CONTOIL® DN15 - 50
3 Installation
CAUTION
The surfaces of the device and the medium may be hot.
Risk of burns!
Carry out work only on cooled systems.
Work may only be performed by authorized specialists in
accordance with the applicable regulations.
Use appropriate protective equipment.
WARNING
The pipe and the device may be under pressure.
Risk of severe injury!
Carry out work only on non-pressurized systems.
When working on the device 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 goggles.

CONTOIL® DN15 - 50 7
3.1 Mounting
Flow meter installation
Easy access for reading the flow meter and controlling the ancillary equipment is important.
Provided that the arrow on the housingis in the direction offlow, the flow meter can be installed
in any position without any special modifications. The mechanical counter can be turned to the
desired position
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.
Tank
Pump
Non-Return
Valve
Flow meter
Flow meter
Tank

8CONTOIL® DN15 - 50
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 deter-
mined 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.
Select the flow meter and ancillaries according to the working conditions listed below:
Flow meters must be selected according to the maximum flow rate and not according
to the pipe diameter. If necessary, adjust the pipeline.
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 selected according to the flow rate and not according to the pipe diame-
ter. 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.
Filter
Non-Return-Valve
Flow meter
Pump
Tank

CONTOIL® DN15 - 50 9
Dirt filter, Safety filter
Filters should be fitted to prevent any damage to the flow meter from impurities in the oil.
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 or mechanical 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.
Maximum mesh width for filters
Nominal
Flow meter type
size
VZO
VZOA
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
No heat insulation in
this area
Heating coil (winding)
Pipe
Heat insulation

10 CONTOIL® DN15 - 50
Special requirements - differential measurements
For differential measurements, one flow meter is installed in the supply line pipe and one in the
return line pipe. The flow difference between these meters determines the consumption.
If ordered with the "differential measurement" option, VZOA flow meters are calibrated in ac-
cordance 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 pipe-
line, i.e. the supply flow meter shall be installed in the supply line pipe and the return flow meter
shall be installed in the return line pipe.
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 is damaged. 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.
Flow meter
Flow meter
Return
Supply
Pump
Filter
Engine
Tank