Arad Octave User manual

Installation Manual
A Member of the
Integrated Metering Technologies

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Arad’s standard products (the “Products”) are sold to Customer and are purchased by Customer under the terms of
warranty set forth herein below:
1. Arad warrants that the Products shall, under conditions of normal use and when properly installed, administered ,
applied and maintained, be free from defects in material and workmanship (the “Warranty”), for a period of 12 months
following delivery thereof to Customer (the “Warranty Period”).
2. Arad’s sole obligation and liability under the Warranty shall be limited to the replacement, the repair or the refund of
the original purchase price, at Arad’s sole discretion, of any defective Products which are proven not to conform to the
Products’ specification and which are returned to the factory or service center designated by Arad during the Warranty
Period by the Customer after completing a failure report. All provided that written notice of such defect is given by the
Customer to Arad within 21 days after discovery thereof. Freight cost to such factory or service center will be paid by the
Customer and freight cost from such factory or service center to Customer will be paid by Arad.
3. Arad will not be responsible for and will have no obligation under the Warranty to any non-conformity of the Products,
caused, in whole or in part, as a result of misuse, abuse, tampering with or modification of any of the Products and/
or by accidents, fault or negligence, improper administration, application and/or use, installation, service, repair and/
or maintenance of the relevant Products, by act of vandalism or by any causes whatsoever (including but not limited to
environmental conditions) that are external thereto.
4. The foregoing warranty is a limited warranty and is exclusive and in lieu of all other warranties, express or implied,
including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose and shall
constitute the Customer’s sole and exclusive remedy with respect thereto. Replacement or repair in the manner provided
above will constitute fulfillment of all of Arad’s obligations with respect to the quality and performance of the products.
No dealer, distributor, agent or employee of either Arad or customer is authorized to modify these warranties. Such
modification shall be null and void and shall not bind Arad for any and all purposes.
5. Except and to the extent provided under the warranty, in no event shall Arad be liable, whether in contract, tort or
otherwise, for any damages, whether direct or indirect, consequential, incidental, special or punitive, resulting from any
defect in the products, including, without limitation, loss of profits, business, income, anticipated savings, goodwill or
other commercial loss, even if Arad had been advised of the possibility of such damages, except to the extent that such
liability may not lawfully be excluded.
Customer shall be solely responsible for the selection, use, efficiency and suitability of the Products.
1.0 General and safety
2.0 Product liability and warranty
• Do not install, operate or maintain this flow meter without reading, understanding and followingthe factory-supplied
instructions. Otherwise, injury or damage may result
• Read these instructions carefully before beginning installation and save them for future reference.
• Observe all warnings and instructions marked on the product
• Consider handling and lifting instructions to avoid damage
• If the product does not operate normally, refer to the service instructions or to a qualified ARAD service engineer
• There are no operator-serviceable parts inside this product

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3.0 Items included with order:
• One OCTAVE ultrasonic flow meter, size as indicated on the packaging box,
pieced together into a complete compact system (flow tube plus electronics)
• One OUTPUT module, either digital or analog (based on the customer’s order)
4.0 Supplied Documentation:
• Condensed installation and user manual
• Report of factory meter settings
• Certificate of calibration data
5.0 Unpacking and Inspection
• This product has been thoroughly inspected and tested before shipment and is ready for operation.
• After carefully unpacking the meter, inspect for shipping damage before attempting to install. If any indication
of mechanical damage is found, immediately contact the responsible transportation service and your local ARAD
LTD. representative.
6.0 System Description and Measurement Method
• The OCTAVE’s measurement method is based on an ultrasonic, transit-time, dual-beam sensor which determines
the length of time it takes an ultrasonic sound wave to travel the distance between the two sensors located on the
meter’s body. The two sensors function as both the sender and the receiver, each one alternating these functions
so that the ultrasonic wave travels both with and against the direction of the flow. Since the ultrasonic wave travels
slower against the flow than with the flow, the time difference of two waves traveling with and against the flow leads
to determining the velocity of the water
• The OCTAVE ultrasonic flow meter is a battery-powered precision flow meter designed for linear, bidirectional flow
measurement of water
• Flow measurement values can be transferred through the standard digital or analog output
• The OCTAVE can be set up for a wide range of applications
7.0 Mechanical Data
Maximum Working Pressure
Liquid Temperature
Precision Class
Configuration
Power Source
Environmental Protection
Display Units
Output (optional)
16 bar
0.1-50°C
ISO 4064 rev.2005
Compact - The display is built in to the unit
2 D size Li-battery -10 years life time
IP 68, Ambient operation temp. -25°C ÷ +55°C
Multi line 9 digit LC display (Programmable - m3,
USG, CuFt. Acre Feet, Flow rate and volume)
Programmable dual open collector pulse output
Powered loop 4-20 mA

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8.1 Handling the flow meter
8.0 Mechanical Installation
8.2 Installation: Location and Position
Wrong Installation
Proper Installation
Flow Direction
Flow Direction
Flow Direction
Flow Direction
Important handling information:
• Do not lift the Octave by the electronic housing.
• Do not carry the Octave by his lid.
• Do not place the Octave on the electronic housing.
• When handling the Octave, avoid hard blows, jolts or impacts.
Model Octave
Nominal size
(mm) 50
50
Threaded
65 80 100
(inch) 2
2
Threaded
2.5 3 4
L – Length (mm) 200 300 200 225 250
B – Width (mm) 165 113 185 200 220
H – Height (mm) 194 155 210 210 223
h – Height (mm) 40 35 90 90 103
Weight (kg) 9 8 11.5 13 15
H
LB
h
B
L
h
H
Dimensions

5
2 DN
2 DN
2 DN
5 DN
The following examples are Arad’s recommendations for achieving
top performance
Zero (0) pipe diameters before
and after elbows (90°)
Minimum of five (5) pipe
diameters after pumps
Minimum of two (2) pipe
diameters after strainers
Minimum of two (2) pipe
diameters before and after
Minimum of two (2) pipe
diameters before T connections
Zero (0) pipe diameters before and after
elbows (90°) in vertical installations
Flow Direction
Flow Direction
Flow Direction
Flow Direction
“O” DN
Flow Direction
2 DN 2 DN
2 DN
2 DN
Flow Direction

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• For proper flow measurements, the OCTAVE’s measuring tube should be completely full at all times. Non-wetted
sensors show loss of signal. Though this will not cause damage to the meter, it will, however, not measure flow and
display zero
• Flow direction: The OCTAVE is a bidirectional flow meter. Note the indicating arrow on the OCTAVE’s display for forward
and backward flows
• In case of direct sunlight exposure, it is recommended to keep the lid closed, though no direct damage will occur with
the lid open
• Do not expose the OCTAVE to excessive vibration. To avoid vibration, support the pipeline on both side of the meter
• Ambient working temperature: -25 to +55°C
• Water working temperature: 0.1 to +50°C
• To avoid measuring errors due to air in the flow tube, observe the following precautions:
• Since air collects at the highest point of the system, installation of the flowmeter should be at the lowest point
• Always install control valves downstream of the meter in order to avoid cavitation
• ever install the meter on a pump suction side in order to avoid cavitation
10.0 Pipe flanges
• Refer to the standard dimensional drawings for flange spacing, accommodating for the thickness of gaskets
• Install meter in line with the pipe axis. The pipe flange faces must be parallel to each other
• Permissible length deviation: Lmax - Lmin ≤ 0.5mm (0.02”)
11.0 Start-up
 Check that the meter has been installed correctly
 Check that the flow rate and volume units are correctly preprogrammed on the display
 Check that the output module is correctly attached
12.0 Electrical Outputs
12.1 Pulse Output (Digital)
• The OCTAVE is delivered with dual pulse output
• Pulse Type – open collector that allows current loading of 200mA, and up to 50volt
• The pulse width is programmable with a maximum resolution value of 1ms
Octave Pulse Output Module Specification
Outputs diagram
9.0 Notes
Pulse Out#1
1
10R
10R
1K
1K
AG3
AG3
AG3
1
1
Pulse Out#2
GND

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Output characteristics
Outputs Type Open Drain
Cable Length
3 meters
(up to maximum of
100 meters)
Maximum Supply Voltage 50Vdc
Maximum power load 200mA
Output wire colors
Warning - Signal connection polarity is mandatory!
Pulse Duration table
Pulse per
selected
quantity
M3 USG Cuft A.F
Max pulse
width [ms]
Max pulse
width [ms]
Max pulse
width [ms]
Max pulse
width [ms]
0.0001 1
0.001 10 125
0.01 90 3 125
0.1 125 4 32 125
1 125 40 125 125
10 125 125 125 125
100 125 125 125 125
1000 125 125
Output characteristics
Outputs Type 4-20mA
passive current output
Supplied Cable Length 3 [meters]
Loop supply voltage 12 - 24 [Vdc]
Output Impedance 25 [MΩ] typ
Output wire colors
Warning - Signal connection
polarity is mandatory!
• The current output is a passive 4-20mA.
• 4mA is always “0” (zero) flow and the 20mA is
factory programmable according to the customer
requirements.. (If the customer did not specify, the
20mA will be the maximum flow rate)
12.2 4-20mA Module (Analog)
13.0 Digital Display
Leak detector
Volume units
m3
Flow rate units
m3/h
Battery level
Flow direction
Output Mode
Coil/3G/GSM- Active communication
Alarm/Error
4-20mA Outputs diagram
Red Pulse Out#1
Green Pulse Out#2
Black GND
Octave
4-20mA
Module
12 - 24 [Vdc]
Read-out
Instrument
Red current loop +
Black current loop -

June 2011
Innovation through precision,
quality and performance
Arad Ltd. Association Dalia Ramot-Menashe, 19239 Dalia, ISRAEL
Tel:
(972)4-9897911 Fax: [phone] www.arad.co.il
14.0 Output Module Installation
If your Octave order includes output module, the following will explain how to attach it to the meter.
Output module kit includes (Pic.1)
1. Output module
2. 2 Allen Screws 3mm X 20mm
3. O-ring
4. Sealing cap
5. 3mm Allen key
Stage 1:
Using the 3mm Allen key disassemble the cover (Pic. 2)
from the meter, keep the cover the screws and the O-ring
for future use (Pic.3).
Pic. 2 Pic. 3
Stage 2:
Place the O-ring in the groove (Pic.4 & 5).
Pic. 4 Pic. 5
Stage 3:
Insert the output module into the plug (Pic.6), and tighten
the screws with the 3mm Allen key (Pic.7).
Pic. 6 Pic. 7
Stage 4:
Push the sealing cap to the lower hole of the module
(Pic.8) and fixed it all the way in with a hammer (Pic.9).
Pic. 8 Pic. 9