ISTEC Corporation, your Flow Measurement and Control Specialist
 

ISTEC CORPORATION
Flow Measurement & Control
5 Park Lake Road, Unit 6
Sparta, NJ 07871 USA
Tel 973-383-9888
Fax 973-383-9088
Email

FreeFlow Newsletter from ISTEC

Newsletter Sign-up Here

OFFICE HOURS

We will be closed on May 24th and May 27th, 2019 in observation of Memorial Day.

We will open again on Tuesday May 28th, 2019

Remember our troops in your prayers as they keep us safe on this Memorial Day.

We Accept

We Accept MasterCard, Visa and American Express

Last Update:

 Aquametro Contoil Oil MetersAquametro Contoil Oil Meters Overview

Since 1928, the name Aquametro has been synonymous with metering technology – through the many generations of quality products and practical solutions provided. Aquametro is continually aware of the variety of specific requirements needed throughout the world – whether technological, economical, ecological, or cultural, and this determines the way we act. Our closeness to the market is based on our constant readiness to break new ground in our quest for optimum solutions. The experience and skills we have gained in this way are adopted in our daily work by both our operatives in Switzerland and our offices and representatives throughout the world.

FEATURES
  • Complete Range of Products Offering the Best Solutions for the Measurement of Oil Consumption
  • State-of-the-art Design with Electronic Counter, Flow Indication, Analog and Digital Output Signals and Limiting Value Switch
  • Mounting on the Pressure or Suction Side of a Pump, with No Straight Inlets or Outlets Required
  • Independent of Viscosity and Temperature
  • High Vibration Resistance
 BENEFITS
  • Reliable Solutions  with Everything from a Single Supplier
  • Dependable Monitoring and Flexible Control of System
  • Simplifies Burner Settings and Optimizing Consumption
  • Highly Flexible Mounting with Small Space Requirements
  • Accurate Measurements
  • Maximum Safety in the Shipbuilding and Automobile Industries
  • Cost-effective Metering

Aquametro Contoil Model VZF II 15-50 Multifunction Display

Aquametro Contoil Model VZF II 15-50

Contoil VZF II 15-50
Control with Multi-functional Display and Parameterizable Outputs

  • Totalizer, Total or Total Mass and Resettable Volume
  • Actual Flow Rate
  • Volume Pulses
  • Limiting Values (Qmin, Qmax)
  • Simple to Operate
  • Interactive Parameter Input
  • External Power Supply
  • Housing with Threaded or Flanged Connections
  • Flow Range 10 - 30 000 l/h
  • Temperature Ranges 130 and 180°C
  • Nominal Pressure PN 16 and 25 bar (PN 40 on request)

Contoil VZO 4 - 50
Classic Total Volume Display and Remote Transmission

  • Total Volume Display on Roller Counter
  • Option: Reed Pulser RE or RV for Remote Totalization
  • Option: Inductive IN Pulser for Control Purposes
  • Housing with Threaded or Flanged Connections
  • Flow Range 0.5 - 30.000 l/h
  • Temperature Ranges 60, 130 and 180°C
  • Nominal Pressure PN 16, PN 25 and PN 40 bar

Contoil VZF II / VZOA
Optimal Solution for Special Applications

  • Differential Measurement (VZFA II/ VZOA 15 - 50)
  • Certification/Official Verification for Commercial Transactions (VZOA 4 - 50)
  • Engine Test Benches (VZFA II / VZOA 15 - 50)

VZFA II

  • Electronic Display of Totalizer, Total or Mass Total and Resettable Volume, Actual Flow Rate, Other Flow Parameters
  • Volume Pulses
  • Actual Flow Rate
  • Limiting Values (Qmin, Qmax)
  • Simple to Operate
  • Interactive Parameter Input
  • External Power Supply

VZOA 4 and 8

• Volume Display on Roller Counter

VZOA 15-50

  • Volume Display on Roller Counter
  • Option: IN Inductive Pulser for Control Purposes
  • Option: RV Reed Pulser for Remote Totalization, Integrated into the Roller Counter
  • Housing with Threaded or Flanged Connections
  • Flow Range 10 - 30,000 l/h
  • Temperature Ranges 130 and 180°C
  • Nominal Pressure PN 16 and PN 25 bar (PN 40 on request)
  • Special Pairing for Minimum Measurement Variance

Aquametro Contoil Model VZO 4 - 50

Aquametro Contoil Model VZO 4 and 8

Aquametro Contoil Model VZO 4 - 50

Aquametro Contoil Model VZFA II / VZOA

Aquametro Contoil Model VZOA-15 - 50

Aquametro Contoil Model VZO-40-and-8-OEM.jpg

TECHNICAL DATA1)

Aquametro Control VZF II 15-50
  • Display of Total Volume, or Total Mass, Resettable Volume, and Flow Rate in m3, liters or U.S. gallons 2
  • User-friendly, Interactive Parameter Input
  • Fuel Oil Meter with Threaded or Flanged Connections
  • Mounting in Horizontal or Vertical Positions

Other Versions Available

  • Different Flange Drillings, such as ANSI, JIS
Type
VZF II 15
VZF II 20
VZF II 25
VZF II 40
VZF II 50
Nominal Diameter
DN
mm
inch
15
1/2
20
3/4
25
1
40
1-1/2
50
2
Installation length
mm
165
165
190
300
350
Nominal Pressure with Threaded Ends
Nominal Pressure with Flanges
PN
bar
16
16
16
16
16
Maximum Temperature
Tmax
°C
130,180
Maximum Flow Rate
Nominal Flow Rate
Minimal Flow Rate
Approx. Starting Flow Rate		 Qmax3)
Qcont3)
Qmin
l/h
l/h
l/h
l/h
600
400
10
4
1 500
1 000
30
12
3 000
2 000
75
30
9 000
6 000
225
90
30 000
20 000
750
300
Maximum Permissible Error
Repeatability
±1% of Actual Value
±0.2%
Safety Filter Mesh Size
Dirty Filter Mesh Size
mm
mm
0.400
0.250
0.400
0.400
0.400
0.400
0.800
0.600
0.800
0.600
Volume of Measuring Chamber
approx.cm3
12
36
100
330
1 200
Housing Finish
Enameled Red RAL 3013
Weight with Threaded Ends
Weight with Flanges PN 25
approx. kg
approx. kg
2.2
3.8
2.5
4.5
4.2
7.5
17.3
20.3
–
41.0
Smallest Readable Amount:
Total Volume
Resettable Volume
Digital Flow Rate Display
Registration Capacity
l, m3
l, m3
l/h
l, m3
No Decimal Places
1 Decimal Place
1 Decimal Place
8 Digits
Registration Time at Qcont until Overrunning to Zero
H
128 000
100 000
50 000
16 667
5 000
Outputs3
Pulse Value for Totalizer
Current 4 - 20mA for Flow Rate
Frequency for Flow
Limiting Switch
Vol./pulse
I4 /Q1, I20 Q2
f1/Q1, f2/Q2
Qmin, Qmax
 Pulse Value and Width Parameterizable
Flow Rates to 4 and 20mA Parameterizable
Frequency and Flow Rate Parameterizable
Minimum, Maximum and Hysteresis Parameterizable

1) Manufacturer's specification, valid for the reference conditions as specified under Meter Data
2) 1 U.S. gallon corresponds to 3.785 liters
3) For burners and engines or motors, the meter must be selected on the basis of the permanent flow rate. For higher viscosities, or if the meter is installed on the suction side, the pressure drop and any reduction in the measuring range must be taken into consideration.
4) Weight without couplings.
5) Two freely selectable outputs are available, totally independent of each other.

ELECTRONIC DISPLAY

Aquametro Contoil Electronic Display

Display Values:
  • Total Volume, Resettable Volume, Flow Rate
  • In the Information Menu, Hours of Operation and Other Data can be Obtained

Display:
  • 8-character LCD with Parameter Identification
  • Height of Numbers: 8mm
  • Flow Rate (meter load): Using Bar Indicator

Temperature:
  • Ambient Temperature -25 -+70°C
  • Storage Temperature -25 - +85°C

Safety:
  • CE, Vibration and Shock Test to DIN IEC 68

Power Supply:
  • 24V DC (6-30V DC)

Data Preservation:
  • By Non-volatile Memory (EEPROM)

Protection Class:
  • IP 66 (IEC 60529) Against Dust and Heavy Seas

OUTPUTS

Four different output functions are available -

  1. Pulser for volume pulses with programmable pulse value (for external totalizer)
  2. Analog current output 4-20mA corresponding to flow rate
  3. Frequency output 0-100Hz corresponding to flow rate
  4. Switching function (limiting value switch) specified by programmable upper and lower flow rates

Except for the current output function, any two of the remaining three functions can always be used simultaneously. This results in two types of connection:

1 Potential-free Digital Output (Rel. 1), Parameterizes to one of the three functions described below. 2 Potential-free Digital Outputs (Rel. 1 + Rel. 2), each Parameterizes to one of the three functions described below.
1 Passive Analog 4-20mA Output also used for Powering the meter. The Analog Output is not available in this case. The Power, however, is suppled over these terminals.
Outputs 1 Outputs 2

SPECIFICATION OF THE OUTPUTS

Passive Analog Output (1-2)

Voltage Range U: 6-30V DC
Maximum Load RL: (U-5) V / 0.0215A [Ω]
Resolution: 16-bit
Maximum Error: ± 0.2mA
Update Interval: <1 s

Digital Outputs (3-4, 5-6)

Maximum Voltage Umax: 48V AC/DC
Maximum Current Imax: 50mA
Maximum Output Frequency fmax: 100Hz
Update Interval: <1 s
ON-Resistance R0: ≤100Ω
OFF-Resistance R∞: ≥10 MΩ
Insulation Voltage: ≥100V AC/DC

ADJUSTABLE FUNCTIONS

Volume Pulses

Pulse Width t: 5, 50, 250, 500ms Aquametro Contoil Volume Pulses
Pulse Value: Parameterizable

Current Signal

Flow Rate at 4mA Q1: Parameterizable Aquametro Contoil Current Signal
Flow rate 20mA Q2: Parameterizable
Attenuation: Parameterizable

Frequency Signal

Output Frequency fmax: 100Hz Aquametro Contoil Frequency Signal
Pulse ratio: 1:1
Frequency / Flow Rate f1/Q1: Parameterizable
Frequency / Flow Rate f2/Q2 : Parameterizable

Limiting Value Switch

Limit Qmin Parameterizable Aquametro Contoil Limiting Value Switch
Limit Qmax : Parameterizable
Hysteresis H: Parameterizable

DIMENSIONS

Type
mm
VZF II 15
VZF II 20
VZF II 25
VZF II 40
VZF II 50
Aquametro Contoil Dimensions for VZF 15-10
Length
165
165
190
300
350
Width
105
105
130
210
280
Height
155
164
191
243
299

Detailed Dimensional Drawings in Meter Data

TYPE DESIGNATION KEY

Aquametro Contoil Type Designation Key

ORDERING SPECIFICATIONS

Threaded ends, PN 16
Type 130°C
Order No.
    
Aquametro Contoil Specifications for VZF 15-10 with Threaded Ends, PN 16
VZF II 15 RC 130/16
93705
    
VZF II 20 RC 130/16
93708
    
VZF II 25 RC 130/16
93725
    
VZF II 40 RC 130/16
93730
    
 
Flanges, PN 25    
Type 180°C
Order No.
Aquametro Contoil Specifications for VZF 15-10 with Flanges, PN 25
VZF II 15 FL 130/25
93706
    
VZF II 20 FL 130/25
93709
VZF II 20 FL 180/25
93710
VZF II 25 FL 130/25
93726
VZF II 25 FL 180/25
93727
VZF II 40 FL 130/25
93731
VZF II 40 FL 180/25
93732
VZF II 50 FL 130/25
93735
VZF II 50 FL 180/25
93736
 
Modification VZF II For Marine Type Approval (e.g., GL, LRS, DNV)
96295

TECHNICAL DATA1)

Aquametro Contoil Control VZF 15…50
  • Oil Meter with Internal Threaded Connections Located on the Bottom Plate
  • Mechanical Roller Counter, Volume Display in Liters
  • Meters in U.S. Gallons2
  • Mount in Horizontal, Vertical and Inclined Positions
  • VZOA 4 and 8 with EEC Legal Verification

Option: Reed Pulser 48V
Type
VZO 4
Qmin 0.5
VZO 4
VZO 8
Nominal Diameter
mm
inch
4
1/8
4
1/8
8
1/4
Connection Threads of Meter
inch
1/8
1/8
1/4
Nominal Pressure
bar
25
  
Temperature
Tmax
°C
60
  
Maximum Flow Rate
Nominal Flow Rate
Minimal Flow Rate
Approx. Starting Flow Rate
Qmax3)
Qcont3)
Qmin4)
l/h
l/h
l/h
l/h
40
25
0.5
0.3
80
50
1
0.4
200
135
4
1.6
Maximum Permissible Error
Repeatability
±1% of Actual Value4)
±0.2%
Smallest Readable Amount:
Registration Capacity:
Registration at Qcont until Overrun to Zero
l
m3
h
0.001
100
4 000
0.001
100
2 000
0.01
1 000
7 400
Safety Filter Mesh Size
Dirty Filter Mesh Size
mm
mm
0.125
0.080
0.125
0.080
0.150
0.100
Volume of Measuring Chamber
approx.cm3
5
5
12.5
Weight without Couplings
approx. kg
0.65
0.65
0.75
Reed Pulsers
RE 1
RE 0.1
RE 0.00125
RE 0.00311
l/ pulse
–
–
–
–
–
0.1
0.00125
–
1
–
–
0.00311
Pulse Frequency for
RE 0.001255)
at Qmax
at Qmin
Hz
Hz
–
–
17.777
0.222
–
–
Pulse Frequency for
RE 0.003115)
at Qmax
at Qmin
Hz
Hz
–
–
–
–
17.864
0.357

1) Manufacturer's specification, valid for the reference conditions as specified under Meter Data
2) 1 U.S. gallon corresponds to 3.785 liters
3) For burners and engines or motors, the meter must be selected on the basis of the permanent flow rate. For higher viscosities, or if the meter is installed on the suction side, the pressure drop and any reduction in the measuring range must also be taken into consideration.
4) Max. permissible error: VZO 4 Qmin 0.5: 0.5 l/h - 2 l/h = + 1% /– 2%. VZO 4: 1 l/h - 2 l/h = + 1% /– 2%
5) Note: pulses of short duration!

VZOA 4 and 8 with EEC Legal Verification D 04/5.232.14

Data According to Type Approval Specifications
VZOA 4
VZOA 8
Temperature max.
Tmax
°C
50
50
Maximum Flow Rate
Qmax
l/h
20
140
Nominal Flow Rate
Qcont
l/h
20
140
Minimal Flow Rate
Qmin
l/h
2
14
Max. Permissible Error
±% of Actual Value
0.5
0.3

See PRESSURE DROP CURVES

DIMENSIONS in mm

Aquametro Contoil VZOA 4 and 8 Dimensions in mm

Detailed Dimensional Drawings in Meter Data

MOUNTING KIT for VZO 8

Aquametro Contoil Mounting Kit for VZO 8

RE PULSERS

Aquametro Contoil RE Pulsers Switching Element: Reed Switch with Dry Contact (inert gas)
Switching Voltage: Max. 48V AC/DC, Protection Class III (SELV)
Switching Current: Max. 50mA
Quiescent Current: Open Contact
Switching Power: Max. 2 W
ON-time: VZO 4-RE 0.00125: 30-70% (17-39ms bei 80 l/h)
  VZO 4-RE 0.1: 40-60%
  VZO 8-RE 0.00311: 30-70% (17-39ms bei 200 l/h)
  VZO 8-RE 1: 40-60%
Temperature: Ambient -10 - +60°C
Protection Class: IP 50 (IEC 60529) against Harmful Dust Deposits
– Option: IP 54 additional against Splashing Water
Connections: On Plug Connector with Cable, 3, 5 - 5mm Ø

ORDERING SPECIFICATIONS

Aquametro Contoil Dimensions for VZO - VZOA
Type
Order No.
Type
Order No.
VZO 4
92680
VZO 8
92630
VZO 4
RE 0.00125
89763
VZO 8
RE 0.00311
89733
VZO 4
RE 0.1
89761
VZO 8 RE 1
89731
VZO 4
Qmin 0.5
92678
    
VZOA 4
93668
VZOA 8
93669
Modification
Increased Protection (IP 54)
80368

Special Versions with FPM Fluoroelastomer Gaskets
VZO 4 V – Order No. 92487
VZO 4 V – RE 0.1 Order No. 92489

TECHNICAL DATA1)

Aquametro Contoil VZO 40 and 8 OEM
  • Fuel Oil Meters for OEMs (Original Equipment Manufacturers), to be Mounted under the Burner Cover
  • Meters with Lateral Internal Threaded Connections
  • 230V Reed Pulser to Display Measurement Values on Remote Totalizer or on Burner Control Unit
  • Mount in Horizontal, Vertical or Inclined Positions
Type
VZO 4
OEM
VZO 8
OEM
Nominal Diameter
mm
inch
4
1/8
8
1/4
Connection Threads of Meter
inch
1/8
1/4
Nominal Pressure
bar
32
25
Temperature
Tmax
°C
60
60
Maximum Flow Rate
Nominal Flow Rate
Minimal Flow Rate
Approx. Starting Flow Rate
Qmax2
Qcont2
Qmin3
l/h
l/h
l/h
l/h
80
50
1
0.4
200
135
4
1.6
Maximum Permissible Error
Repeatability
±1% of Actual Value4)
±0.2%
Safety Filter Mesh Size
Dirty Filter Mesh Size
mm
mm
–
0.080
0.150
0.100
Volume of Measuring Chamber
approx.cm3
5
12.5
Weight
approx. kg
0.65
0.75
Reed Pulsers
RE
  
l/pulse
0.005
0.0125
Pulse Frequency
at Qmax
at Qmin
Hz
Hz
4.444
0.056
4.444
0.089

1) Manufacturer's specification, valid for the reference conditions as specified under Meter Data
2) For burners and engines or motors, the meter must be selected on the basis of the permanent flow rate. For higher viscosities, or if the meter is installed on the suction side, the pressure drop and any reduction in the measuring range must also be taken into consideration.
3) Max. permissible error: VZO 4 OEM: 1 l/h - 2 l/h = +1% / –2%

SAFETY PRECAUTION

When connecting the Reed pulser to a low-voltage power source (50 - 250V AC/DC), the specialist installing the equipment is responsible for ensuring that all local regulations are observed (e.g., regulations for electrical installations, personnel safety).

See PRESSURE DROP CURVES

DIMENSIONS in mm

Aquametro Contoil Dimensions in mm for VZO 4 and 8 OEM

RE PULSERS

Aquametro Contoil RE Pulsers Switching Element: Reed Switch with Dry Contact (inert gas)
Switching Voltage: Max. 230V AC/DC
Switching Current: Max. 50mA
Quiescent Current: Open Contact
Switching Power: Max.3 VA
ON-time: 40-55%  
Temperature: Ambient -10 - +60°C
Protection Class: IP 50 (IEC 60529) against Harmful Dust Deposits
Connections: Cable Cross Section 2 x 0.5mm2, Length 480mm

REMOTE TOTALIZER for VZO 4 OEM

Switching Element: Reed Switch with Dry Contact (inert gas) Switching Voltage: Max. 230V AC/DC Switching Current: Max. 50mA Quiescent Current: Open Contact Switching Power: Max.3 VA ON-time: 40-55% Temperature: Ambient -10 - +60°C Protection Class: IP 50 (IEC 60529) against harmful dust deposits Connections: Cable Cross Section 2 x 0.5mm2, length 480mm Power Supply: 230V, 50/60Hz
Pulse Value (input): 0.005 l
Smallest Readable Amount: 0.005 l
Registration Capacity: 10 000 l
Registration: at Q before Return to Zero 200 h
ON-time: 40-55%  
Panel Cut-out: 27 x 14.4 – 0 / +0.2mm
Installation Depth: 56mm

ORDERING SPECIFICATIONS

 
Type
Description
Order No.
Aquametro Contoil Ordering Specs for Remote Totalizer for VZO 4 OEM
VZO 4 OEM-RE 0.005
Version for OEMs
89765
 
Remote Totalizer for VZO 4 OEM
93349
VZO 8 OEM-RE 0.0125
Version for OEMs
89771

TECHNICAL DATA1)

Aquametro Contoil VZO 15-50
  • Volume Display on Roller Counter, in liters
  • Fuel Oil Meter with Threaded or Flanged Ends
  • Horizontal, Vertical or Inclined Mounting

Option: Reed Pulser or RV / IN Pulser

Other Versions Available

  • Different Flange Drillings, such as ANSI, JIS
  • Meters in U.S. Gallons 2 (option)
Type
VZF II 15
VZF II 20
VZF II 25
VZF II 40
VZF II 50
Nominal Diameter
DN
mm
inch
15
1/2
20
3/4
25
1
40
1-1/2
50
2
Installation Length
mm
165
165
190
300
350
Nominal Pressure with Threaded Ends
Nominal Pressure with Flanges
PN
PN
bar
bar
16
25, 40
       
Maximum Temperature
Tmax
°C
130,180
        
Maximum Flow Rate
Nominal Flow Rate
Minimal Flow Rate
Approx. Starting Flow Rate
Qmax3)
Qcont3)
Qmin
l/h
l/h
l/h
l/h
600
400
104)
4
1 500
1 000
30
12
3 000
2 000
75
30
9 000
6 000
225
90
30 000
20 000
750
300
Maximum Permissible Error
Repeatability
±1% of Actual Value
±0.2%
Safety Filter Mesh Size
Dirty Filter Mesh Size
mm
mm
0.400
0.250
0.400
0.400
0.400
0.400
0.800
0.600
0.800
0.600
Volume of Measuring Chamber
approx.cm3
12
36
100
330
1 200
Housing Finish
Enameled Red RAL 3013
Weight with Threaded Ends5)
Weight with Flanges PN 25
Weight with Flanges PN 40
approx. kg
approx. kg
approx. kg
2.2
3.8
4.4
2.5
4.5
5.5
4.2
7.5
7.8
17.3
20.3
20.5
–
41.0
42.0
Smallest Readable Amount:
Registration Capacity
Registration Time at Qcont until Overrun to Zero
l
m3
h
0.01
1 000
2 500
0.1
10 000
10 000
0.1
10 000
5 000
0.1
10 000
1 667
1
100 000
5 000
Pulse Values of Pulser
IN Inductive according to IEC 60947-5-6
RV Reed
RV Reed

l/ pulse
l/ pulse
l/ pulse

0.01
0.1
1

0.01
1
–

0.01
1
–

0.01
1
10

1
10
100
Pulse Frequency IN
at Qmax
at Qmin
Hz
Hz
16.667
0.278
41.667
0.833
8.333
0.208
25.000
0.625
8.333
0.208

1) Manufacturer's specification, valid for the reference conditions as specified under Meter Data
2) 1 U.S. gallon corresponds to 3.785 liters
3) For burners and engines or motors, the meter must be selected on the basis of the permanent flow rate. For higher viscosities, or if the meter is installed on the suction side, the pressure drop and any reduction in the measuring range must also be taken into consideration.
4) Min. flow rate VZO 15 with IN-pulser: 15 l/h
5) Weight without couplings.

DIMENSIONS in mm

Type
mm
VZO 15
VZO 20
VZO 25
VZO 40
VZO 50
Aquametro Contoil Dimensions for VZO 15 50
Length
165
165
190
300
350
Width
105
105
130
210
280
Typical 130°C
Height
106
115
142
235
291
Height -RV
130
139
166
259
315
Height -IN
185
194
221
273
329
Typical 180°C
Height
147
156
183
235
291
Height -RV
171
180
207
259
315
Height -IN
225
234
261
313
369

See Detailed Dimensional Diagrams in Meter Data

RV PULSERS

Aquametro-Contoil-rv-pulsers-VZO-15059 This type of pulser is integrated into the roller counter and thus is especially appropriate for remote totalization For other applications the IN inductive pulser is preferable.
  Switching Element: Reed Switch with Dry Contact (inert gas)
Switching Voltage: Max. 48V AC/DC, Protection Class III (SELV)
Switching Current: Max. 50mA (Ri = 47Ω/0.5 W)
Quiescent Current: Open Contact
Switching Power: Max.2 W
ON-time: 50% ±10%  
Temperature: Ambient -10 - +70°C
Protection Class: IP 50 (IEC 60529) against Dust and Water-jets
Connections: Cast-in Cable, Length 3m
Cable Cross Section: 2 x 0.14mm2

IN PULSERS

Aquametro-Contoil-rv-pulsers-VZO-15059 Pulser for Industrial Applications. Supplied with Plug-in Pulser Sensor
  Switching Element: Inductive Slot Initiator According to IEC 60947-5-6
Switching Voltage: 5-15V DC
Residual Ripple: Max. 5%
Switching Current: >3mA at 8V DC / 1kΩ
Quiescent Current: <1mA at 8V DC / 1kΩ
ON-time: 50% ±10%  
Ambient Temperature: -10 - +70°C
Protection Class: IP 50 (IEC 60529) against Dust and Water-jets
Connections: Pulser supplied with special plug. Required cable min.
2 x 0.35mm2 and 4 - 6mm External Diameter or the Cable is already mounted if the option “Order No. 80019” is chosen.
Option: Cable Mounted, 2 x 0.14mm2, PVC Black, Length 3m (Order No. 80019)

TYPE DESIGNATION KEY

TYPE DESIGNATION KEY FOR VZO

ORDERING SPECIFICATIONS

Threaded Ends, PN 16 Type 130°C
Order No.
 Type 130°C
Order No.
VZO 15 RC 130/16
92041
 VZO 25 RC 130/16
92057
VZO 15 RC 130/16-RV 0.1
92042
 VZO 25 RC 130/16-RV 1
92058
VZO 15 RC 130/16-RV 1
92043
 VZO 25 RC 130/16-IN 0.1
91913
VZO 15 RC 130/16-IN 0.01
91900
    
VZO 20 RC 130/16
92047
 VZO 40 RC 130/16
92004
VZO 20 RC 130/16-RV 1
92048
 VZO 40 RC 130/16-RV 1
92018
VZO 20 RC 130/16-IN 0.01
91902
 VZO 40 RC 130/16-IN 0.1
91906
Flanges, PN 25 Type 130°C
Order No.
 Type 130°C
Order No.
VZO 15 FL 130/25
92044
 VZO 40 FL 130/25
92005
VZO 15 FL 130/25-RV 0.1
92045
 VZO 40 FL 130/25-RV 1
92020
VZO 15 FL 130/25-RV 1
92046
 VZO 40 FL 130/25-IN 0.1
91907
VZO 15 FL 130/25-IN 0.01
91910
    
VZO 20 FL 130/25
92049
 VZO 50 FL 130/25  
VZO 20 FL 130/25-RV 1
92050
 VZO 50 FL 130/25-RV 10  
VZO 20 FL 130/25-IN 0.01
91903
 VZO 50 FL 130/25-IN 1  
VZO 25 FL 130/25
92059
  
92007
VZO 25 FL 130/25-RV 1
92060
  
92024
VZO 25 FL 130/25-IN 0.1
91914
  
91909
Flanges, PN 25 Type 180°C
Order No.
 Type 180°C
Order No.
VZO 15 FL 180/25
92250
 VZO 40 FL 180/25
92274
VZO 15 FL 180/25-RV 0.1
92251
 VZO 40 FL 180/25-RV 1
92275
VZO 15 FL 180/25-RV 1
92252
 VZO 40 FL 180/25-IN 0.1
92276
VZO 15 FL 180/25-IN 0.01
92253
    
VZO 20 FL 180/25
92258
 VZO 50 FL 180/25
92280
VZO 20 FL 180/25-RV 1
92259
 VZO 50 FL 180/25-RV 10
92281
VZO 20 FL 180/25-IN 0.01
92260
 VZO 50 FL 180/25-IN 1
92282
VZO 25 FL 180/25
92264
    
VZO 25 FL 180/25-RV 1
92265
    
VZO 25 FL 180/25-IN 0.1
92266
    
Flanges, PN 40 Type 180°C
Order No.
 Type 180°C
Order No.
VZO 15 FL 180/40
92254
 VZO 40 FL 180/40
92277
VZO 15 FL 180/40-RV 0.1
92255
 VZO 40 FL 180/40-RV 1
92278
VZO 15 FL 180/40-RV 1
92256
 VZO 40 FL 180/40-IN 0.1
92279
VZO 15 FL 180/40-IN 0.01
92257
    
VZO 20 FL 180/40
92261
 VZO 50 FL 180/40
92283
VZO 20 FL 180/40-RV 1
92262
 VZO 50 FL 180/40-RV 10
92284
VZO 20 FL 180/40-IN 0.01
92263
 VZO 50 FL 180/40-IN 1
92285
VZO 25 FL 180/40
92267
    
VZO 25 FL 180/40-RV 1
92268
    
VZO 25 FL 180/40-IN 0.1
92269
    
DN 15 Only when the Plant has a Dirt Filter with a max. 0.1mm Mesh Size
Modification VZO For Marine Type Approval (e.g., GL, LRS, DNV)
96295
Option / Accessory Cable Mounted on IN
80019

DN 15 Only when the Plant has a Dirt Filter with a max. 0.1mm Mesh Size

TECHNICAL DATA1)

Aquametro Contoil VZFA II / VZOA

 
  • Versions for Optimal Results from Differential Measurement or Fiscal or Commercial Transactions
  • VZFA II with Electronic Display of Total Volume or Total Mass, Resettable Volume and Flow Rate; Units of Measurement: liters, U.S. Gallons 2 or m3
  • VZOA with Display of Total Volume on Roller Counter; Units of Measurement: liters Optional Versions with Counter in U.S. Gallons.
  • VZOA Option: with RV Reed or IN Inductive Pulser
  • Threaded or Flanged Connections Available
  • Mounting in Horizontal or Vertical Positions Possible (for Calibrated Meters Horizontally Only).
  • VZFA II: User-friendly, Interactive Parameter Input. Easy Integration into Control Systems.

Other Versions Available

  • Different Flange Drillings, such as ANSI, JIS
Type     VZFA II/VZOA
Nominal Diameter DN mm
inch		 15
1/2		 20
3/4		 25
1		 40
1-1/2		 50
2
Installation Length   mm 165 165 190 300 350
Nominal Pressure with Threaded Ends
Nominal Pressure with Flanges		 PN
PN		 bar
bar		 16
25		  
Maximum Temperature Tmax °C 130, 180        
Maximum Flow Rate
Nominal Flow Rate
Minimal Flow Rate
Approx. Starting Flow Rate		 Qmax3)
Qcont3)
Qmin

 l/h
l/h
l/h
l/h		 600
400
104)
4		 1 500
1 000
30
12		 3 000
2 000
75
30		 9 000
6 000
225
90		 30 000
20 000
750
300
Maximum Permissible Error
Repeatability		     <0.5% of Actual Value
±0.1%
Safety Filter Mesh Size
Dirty Filter Mesh Size		   mm
mm		 0.400
0.100		 0.400
0.100		 0.400
0.250		 0.800
0.250		 0.800
0.250
Volume of Measuring Chamber   approx.cm3 12 36 100 330 1 200
Housing Finish     Enameled Red RAL 3013
Weight with Threaded Ends5)
Weight with Flanges PN 25		   approx. kg
approx. kg		 2.2
3.8		 2.5
4.5		 4.2
7.5		 17.3
20.3		 –
41.0
VZFA II
Smallest Readable Amount:
Total Volume
Resettable Volume
Digital Flow Rate Display
Registration Capacity
Registration Time at Qcont until Overrun to Zero

l, m3
l, m3
l/h
l, m3
h 		No Decimal Places
1 Decimal Place
1 Decimal Place
8 Digits
128 000 100 000
50 000 16 667 5 000
Outputs6)
Pulse Value for Totalizer
Current 4-20mA for Flow Rate
Frequency for Flow Rate
Limiting Value Switch		   V/Imp
I4 / Q1, I20 / Q2
f1 / Q1, f2 / Q2
Qmin, Qmax		 Pulse Value and Width Parameterizable
Flow Rates to 4 and 20mA Parameterizable
Frequency and Flow Rate Parameterizable
Minimum, Maximum and Hysteresis Parameterizable
VZOA
Smallest Readable Amount:
Registration Capacity
Registration Time at Qcont until Overrun to Zero		   l
m3
h		 0.01
1 000
2 500		 0.1
10 000
10 000		 0.1
10 000
5 000		 0.1
10 000
1 667		 1
100 000
5 000
Pulse Value of Pulsers:
IN Inductive According to IEC 60947-5-6
RV Reed
RV Reed		   l/ pulse
l/ pulse
l/ pulse		 0.01
0.1
1		 0.01
1
–		 0.01
1
–		 0.1
1
10		 1
10
100

1) Manufacturer's specification, valid for the reference conditions as specified under Meter Data
2) 1 U.S. gallon corresponds to 3.785 liters
3) For burners and engines or motors, the meter must be selected on the basis of the permanent flow rate. For higher viscosities, or if the meter is installed on the suction side, the pressure drop and any reduction in the measuring range must also be taken into consideration.
4) Min. flow rate VZO 15 with IN-pulser: 15 l/h
5) Weight without couplings.
6) Two freely selectable outputs are available, totally independent of each other.

Technical Data for VZOA with PTB Certification: 5.232 / 04.37 Class 1

Type     VZOA 15 VZOAb 20 VZOA 25 VZOA 40 VZOAb 50
Temperature Max. Tmax °C 130        
Maximum Flow Rate Qmax1)
Qcont1)
Qmin		 l/h
l/h
l/h		 400
400
40		 1 000
1 000
100		 2 000
2 000
200		 6 000
6 000
600		 20 000
20 000
2 000
Accuracy Class
Max. Permissible Error		 ±% of Actual Value 0.5
0.3		 0.5
0.3		 0.5
0.3		 0.5
0.3		 0.5
0.3

Two items are required when ordering: the VZOA Meter and EEC Legal Verification, Order No. 96026

1) For burners and engines or motors, the meter must be selected on the basis of the permanent flow rate. For higher viscosities, or if the meter is installed on the suction side, the pressure drop and any reduction in the measuring range must also be taken into consideration.

Electronic Display and Outputs VZFA II: see page 6
RV Pulsers and IN Pulsers: see page 15
See Pressure Drop Curves

Dimensions VZFA II

Type
mm
VZFA II 15
VZFA II 20
VZFA II 25
VZFA II 40
VZFA II 50
Aquametro Contoil VZFA
Length
165
165
190
300
350
Width
105
105
130
210
280
Height
155
164
191
243
299

Dimensions VZOA

Type
mm
VZOA 15
VZOA 20
VZOA 25
VZOA 40
VZOA 50
Aquametro Contoil VZOA
Length
165
165
190
300
350
Width
105
105
130
210
280
Typical 130°C
Height
106
115
142
235
291
Height -RV
130
139
166
259
315
Height -IN
185
194
221
273
329
Typical 180°C
Height
147
156
183
235
291
Height -RV
171
180
207
259
315
Height -IN
225
234
261
313
369

See Detailed Dimensional Diagrams in Meter Data

TYPE DESIGNATION KEY

Aquametro Contoil Type Designation Key for VZOA

Information Required to Process Orders

When the order is placed, information is required on the plant operating conditions (as stated at the beginning of this section). For fiscal and commercial transactions only VZOA type meters may be used.

Example for Differential Measurement

Application:   Differential Measurement Diesel, Supply 200 l/h, Return 120-190 l/h
2 Units Order No. 93758 Contoil Fuel Oil Meter, Type VZFA II 20 RC 130/16
2 Units Order No. 96112 Modification for Differential Measurement

Example for Fiscal or Commercial Transactions

Application:   Commercial transactions in Germany, extra light heating oil,flow rate 200 - 400 l/h, temperature approximately 20°C
1 Units Order No. 92290 Contoil Fuel Oil Meter, Type VZOA 20 RC 130/16
1 Units Order No. 96026 Modification with EC Official Verification

Example for Standard Applications Without Options

Application:   Measurement of Diesel Fuel on Testing Facility, Flow Rate 200 - 400 l/h, Temperature 20 - 50°C
1 Units Order No. 93758 Contoil‚ fuel oil meter, type VZFA II 20 RC 130/16

Ordering Details for VZOA (Meter with Roller Counter)

Threaded ends, PN 16
Type 130°C
Order No.
    
Aquametro Contoil Ordering Details for VZFA with Threaded Ends, PN 16
VZFA II 15 RC 130/16
93755
    
VZFA II 20 RC 130/16
93758
    
VZFA II 25 RC 130/16
93763
    
VZFA II 40 RC 130/16
93768
    
 
Flanges, PN 25
Type 130°C
Order No.
Type 180°C
Order No.
Aquametro Contoil Ordering Details for VZFA with Flanges, PN 25
VZFA II 15 FL 130/25
93756
VZFA II 15 FL 180/25
93757
VZFA II 20 FL 130/25
93759
VZFA II 20 FL 180/25
93760
VZFA II 25 FL 130/25
93764
VZFA II 25 FL 180/25
93765
VZFA II 40 FL 130/25
93769
VZFA II 40 FL 180/25
93770
VZFA II 50 FL 130/25
93773
VZFA II 50 FL 180/25
93774
     
Modifications Paired for Differential Measurement
96112
  Type Approval for Ships (e.g., GL, LRS, DNV)
96295

Ordering Details for VZOA (Meter with Roller Counter)

Threaded ends, PN 16
Type 130°C
Order No.
Type 130°C
Order No.
Aquametro Contoil Ordering Detail for VZOA with Threaded Ends, PN 16 for 130°C
VZOA 15 RC 130/16
92286
VZOA 25 RC 130/16
92293
VZOA 15 RC 130/16-RV 0.1
92287
VZOA 25 RC 130/16-RV 1
92294
VZOA 15 RC 130/16-RV 1
92288
VZOA 25 RC 130/16-IN 0.1
92295
VZOA 15 RC 130/16-IN 0.01
92289
    
VZOA 20 RC 130/16
92290
VZOA 40 RC 130/16
92296
VZOA 20 RC 130/16-RV 1
92291
VZOA 40 RC 130/16-RV 1
92297
VZOA 20 RC 130/16-IN 0.01
92292
VZOA 40 RC 130/16-IN 0.1
92298
         
Flanges, PN 25
Type 130°C
Order No.
Type 130°C
Order No.
Aquametro Contoil Ordering Detail for VZOA with Flanges PN 25 for 130°C
VZOA 15 FL 130/25
92299
VZOA 40 FL 130/25
92309
VZOA 15 FL 130/25-RV 0.1
92300
VZOA 40 FL 130/25-RV 1
92310
VZOA 15 FL 130/25-RV 1
92301
VZOA 40 FL 130/25-IN 0.1
92311
VZOA 15 FL 130/25-IN 0.01
92302
    
VZOA 20 FL 130/25
92303
VZOA 50 FL 130/25
92312
VZOA 20 FL 130/25-RV 1
92304
VZOA 50 FL 130/25-RV 10
92313
VZOA 20 FL 130/25-IN 0.01
92305
VZOA 50 FL 130/25-IN 1
92314
VZOA 25 FL 130/25
92306
    
VZOA 25 FL 130/25-RV 1
92307
    
VZOA 25 FL 130/25-IN 0.1
92308
    
         
Flanges, PN 25
Type 180°C
Order No.
Type 180°C
Order No.
Aquametro Contoil Ordering Detail for VZOA with Flanges PN 25 for 180°C
VZOA 15 FL 180/25
92315
VZOA 40 FL 180/25
92325
VZOA 15 FL 180/25-RV 0.1
92316
VZOA 40 FL 180/25-RV 1
92326
VZOA 15 FL 180/25-RV 1
92317
VZOA 40 FL 180/25-IN 0.1
92327
VZOA 15 FL 180/25-IN 0.01
92318
    
VZOA 20 FL 180/25
92319
VZOA 50 FL 180/25
92328
VZOA 20 FL 180/25-RV 1
92320
VZOA 50 FL 180/25-RV 10
92329
VZOA 20 FL 180/25-IN 0.01
92321
VZOA 50 FL 180/25-IN 1
92330
VZOA 25 FL 180/25
92322
    
VZOA 25 FL 180/25-RV 1
92323
    
VZOA 25 FL 180/25-IN 0.1
92324
    
 
Modifications Paired for Differential Measurement
96112
  Type Approval for Ships (e.g., GL, LRS, DNV)
96295
  With EEC Legal Verification
96026
 
Option / Accessory Cable Mounted on IN 80019

ORDERING DETAILS for ACCESSORIES

Threaded Connections

Threaded Connections Type
Description
Order No.
  VSR 1/2"
For DN 15
81160
VSR 3/4" x 1/2"
For DN 20
81163
VSR 3/4"
For DN 20
81166
VSR 1"
For DN 25
81169
VSR 1-1/2"
For DN 40
81181

Threaded Connections Kit

Threaded Connections Kit Type
Description
Order No.
  VSR 1/2"
For DN 15
81160

Mounting Kit

Threaded Connections Kit Type
Description
Order No.
  PS-Kit VZO 8
Mounting Kit
81130
  VSR 3/8"
Threaded connections to suit PS-Kit VZO 8
81156

ORDER DETAILS for SUPPLEMENTARY EQUIPMENT

Remote Totalizer

Remote Totalizer Type
Description
Order No.
  Pulse Counter
Pulse counter, with or without zeroing, adjustable
93374

Isolated Switch Amplifier

Isolated Switch Amplifier Type
Description
Order No.
  Ex version
With relay output, max. 10Hz
81705
  Ex version
With electronic output, max. 5kHz
80013

ORDER DETAILS for SUPPLEMENTARY EQUIPMENT with MOUNTING KITS

Transducer

Transducer Type
Description
Order No.
  Flow Calculator
Freely programmable, with analog output 4 - 20mA, indication of flow rate, limiting values
92439
Differential Flow Calculator
Freely programmable, with analog output 4 - 20mA, indication of flow rate, limiting values. Both inputs can be read out individually.
92440
Frequency Current Converter
Freely Programmable
92439
     
Mounting Kit Kit
For Wall Mounting or on DIN-35mm Rail
on request

Contoil – The World's Most Frequently Used Oil Consumption Meter

Leading manufacturers of oil burners and operators of heating systems, ships or diesel engines rely on Contoil fuel oil meters - and with good reasons.

Advantages of Contoil Fuel Oil Meters – Your Benefits

  • Optimal Solutions for Every Application
  • Simple Burner Setting with Flow Rate Display (Types VZF II)
  • Simple Consumption Monitoring with Limiting Value Switch Qmin / Qmax (Types VZF II)
  • Manual Dosing Feature, with a Resettable Counter (Types VZF II)
  • Can be Mounted on the Pressure or Suction Side of a Pump
  • Space-saving Installation – No Straight Inlet / Outlet Sections Required
  • Flexible Mounting of the Meter in Horizontal, Vertical or Inclined Positions
  • Accurate Measurement Result, since the Reading is Independent of the Temperature and Viscosity of the Fluid
  • Minimum Failure Costs due to Simple Function Monitoring, Rapid Fault Analysis and the possibility of Simple Repairs On-site

Areas of Application

  • Measure Heating Fuel Consumption by Oil Burners (for example, Heating Boilers, Industrial Furnaces, Tar Processing Plants, Ships' Boilers)
  • Measure Propellant Fuel Consumption by Motors and Engines (such as Diesel Locomotives, Construction Machinery, Ships, Emergency Power Units, Combined Heating and Power Stations)
  • Consumption Monitoring and Optimization
  • Flow Measurement for Mineral Oils
  • Optional Remote Processing and Integration into Superior Systems
  • Manual Dosing / Batching
  • Flow Measurement for Machine and Motor / Engine Oils
  • Engine Test Benches

Fuel Types

  • Heating Fuel – Extra Light, Light, Medium, Heavy
  • Naphtha
  • Diesel
  • Petrol and Other Lubricating Liquids

See also - METER DATA • PRESSURE DROP CURVES

 

Download Contoil VZF II 2017 Oil Meters PDF Brochure • Download Maintenance Manual • Visit Aquametro