Proceed To A Check Of The Tight-Ness Of The Connections Of The Unit; Check The Flow Of The Installation; Electrical Equipment And Ancillaries; Maintenance - Aquametro Contoil VZO4 Montage- Und Bedienungsanleitung

Proceed to a check of the tight-ness of the connections of the unit.

Check the flow of the installation

Metering of the flow rate with the roller counter (or by remote transmission) for 30...60 sec. Establish the flowrate
per hour with the formula:
Totalised volume in litre x 3600
Measuring time in seconds
Should the established value lie over and above the specification of the meter (Q max), either a flow control
choke (throttle) must be inserted behind the measuring unit or a bigger measuring unit must be used.

Electrical equipment and ancillaries

Check proper functioning.

Maintenance

Dirt trap

Dirt traps must be cleaned periodically, initially at short intervals. When opening the dirt trap please pay atten-
tion to points "Preparation for the mounting". When putting back into operation watch points "Operating start"
of these instructions.

Meter, spare parts

Check connections periodically for tightness and if necessary tighten again.
The cleaning and revision cycle depends largely on the conditions of operation. Under favourable conditions
5...10 years are sufficient. Check the units for corrosion.
ATTENTION: the following steps are intended only for qualified peoples:
For cleaning purpose, the measuring chamber and the rotary piston can be disassembled.
When ancillary equipment is used, observe their mounting and operation instructions.
Spare part-lists may be requested from Aquametro.
Torque of the meter chamber screws

Guarantee, liability

Aquametro guarantees within the bounds of the general terms of business for its products. Aquametro units
are built according to ISO norms and directives.
• Please observe the mounting and operations instructions !
• Use the unit exclusively for its designed purpose.
• Maintain the unit and service it according to prescriptions.
• Use accessories only if their applicability is technically safe.
• The liability for installation and proficient operation of the meter is transferred to the owner or operator.
= Liter per hour
Meter
VZO4 / VZO4 OEM
VZO8
VZO8 OEM
DFM 8D / DFM 8S
DFM 20S
DFM 25S
Screw Torque Nm
M 4 2.5
M 4 4.0
M 5 4.0
M 5 5.0
M 6 6.0
M 8 16.0
9