Electrical Connections; Ancillary Units; Function Control; Operating Start - Aquametro Contoil VZO4 Montage- Und Bedienungsanleitung

Electrical connections

Pay attention to plant design point.
• Power data, operation data
• Maximum transmission length
• Cable cross section, length
• Ambient temperature, mounting position
Prepare cable connection, insert into and fasten it with the cable gland. Pull off the plug terminal
a) Connect wires (arbitrary polarity)
b) Reeinsert plug terminal firmly
Fix protective cover. Meters with protection IP54 require proper positioning of the gaskets.
Screw may be sealed if required using the protection cap (cap must be destroyed for reopening the cover).
Installation instructions (Pict. 5, page 14)
Pulse transmitters type RE
+/–
Ri 47 Ohm +/–
5.65078.4
VZO 4 OEM / VZO 8 OEM
5.65078.4a

Ancillary units

Some ancillary units require a programmation for pulse values or frequency (see their service instructions).
Pulse values of the meters: see type plate.
The frequency is calculated with the following formula:
1
= Pulses per liter
l/pulse

Function control

Put installation into operation following points "Operating start".
Check functioning of ancillaries.

Operating start

Put installation into operation, open valves slowly, fill pipeline network gradually
• Vent the installation well.
• Pressure shocks must be avoided in order not to damage the meter.
• Inclusions of air cause measuring errors in all types of meter and in operation they may damage them.
8
Amb. temperature:
Switching element :
Switching voltage:
Switching current:
Switching capacity:
Static current:
Pulse value:
Protection class:
Umgebungstemperatur:
+/–
Switching:
Switching voltage:
Switching current:
Switching capacity:
+/–
Static current:
Maximal flow rate Qmax
x
3600
• -10 °C...60 °C
• Reed contact (potential-free)
• max.48 VDC/AC
• max. 50 mA (Ri 47 Ω)
• max. 2 W
• open contact
• see type plate
• IP 50, Option IP 54
• -10 °C...60 °C
• Reed contact (potential-free)
• max. 230 VAC
• max. 0.5 A
• max. 10 W
• open contact
= Frequency in Hz