INSTRUCTION MANUAL
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CONTENTS Page No
1 General 4
2 Installation 5
3 Electrical 6
4 Setup 7
5 Technical Specification 19
Revision No 2 - 1/5/2013
2 Installation 1 General
60
The Atrato range represents a new generation of through bore time of ight ultrasonic
owmeters that uses breakthrough technology to offer a wide ranging yet accurate
meter. It is ideal for many process control, instrumentation and laboratory applications.
The user must make sure that the owmeter selected is suitable for the application and
that the chemical compatibility, temperature and pressure requirements are within the
Atrato’s operating range. Please check the model number before proceeding. All meters
can be programmed and monitored via the USB connection.
First 3 digits Flow range
710 = 2-500 mL/min
720 = 0.01 - 1.7 L/min
740 = 0.02 - 5 L/min
760 = 0.1 - 20 L/min
Fourth digit seal material
V = Viton
E = EPDM
S = Silicon
Fifth digit end fittings
0 = 3/8” John Guest 10 bar
1 = 1/2” BSP PEEK 10 bar
2 = 1/2” NPT 316 St St 30 bar
3 = 1/2” BSP 316 St St 30 bar
Sixth digit Wetted materials
0 = PEEK/316 St St
1 = PEEK / Borosilicate glass
Seventh/eighth digit Electronics package
A = Analogue output
D = Display & analogue output
RA = 110°C Sensor remote electronics analogue output
RD = 110°C Sensor remote electronics display & analogue output
®
N = Nitrile
• Locate the owmeter in a sheltered position away from falling water.
• Care must be taken to ensure that the end ttings on the meter are not stressed during
use. Ideally, exible tubes should be used.
• Ideally the meter should be installed with straight lengths of tube either side for a
distance of 10 pipe diameters upstream and 5 downstream.
• Install the device well away from valves, regulators bends and other components that
could cause excessive turbulence on the uid entering or leaving the meter.
• If necessary use spacer blocks and mounting clips to raise the pipe work centre line
58mm above the surface.
• It is good practice to use upstream and downstream isolating full bore ball valves to
facilitate easy meter installation or removal.
• If push-in 3/8” John Guest ttings are used, clip the pipes to the mounting surface
300mm upstream and 150 downstream.
• The Atrato must be installed in a positive pressure system. Ensure that there is
sufcient back pressure on the owmeter to keep any gas in solution. We recommend
500mbar plus two times the uid vapour pressure.
• If there is any chance of air passing through the system mount the Atrato in a vertical
pipe with the ow in an upward direction otherwise air can remain trapped in the meter
and affect it’s performance.
End fitting ‘B’ Order code Dimension ‘A’ mm
3/8” John Guest 0 145
1/2” BSP PEEK 1 142
1/2” NPT 2 180
1/2” BSP stainless 3 180
22
58
75
‘A’
‘B’
82
14
PG9
For example
760 – V10 – D
This is a 20 L/Min owmeter with Viton seals, half inch BSP ttings and a 316 stainless
steel ow tube with PEEK end ttings, tted with a local digital display and an analogue
output.
Using suitable xings, mount the connection box onto a rigid surface with the cable entry
preferably at the bottom. The mounting screw centres are shown in the diagram on the
right. The owmeter should be clipped into place with the terminal screws positioned at
the lower edge. Note that the rubber strip covering the terminals on the meter will not
seal if water is persistently present in this area. Ensure the meter is not pressure washed.
The Atrato can easily be dismounted by inserting a screwdriver under the mounting
clip and gently unclipping it to release the main body. The PG9 thread can be either
connected to suitable exible conduit or may be tted with the supplied cable gland.
54
4 Setup 3 Electrical
The Atrato can be used entirely from a computer using the USB connection but this
may not be acceptable in many situations where remote operation or further functions
are required. The unit will work with systems from Windows XP onwards. The maximum
connector cable size is 2.5mm (22-14AWG), for ease of assembly we recommend 1mm
maximum. Care should be taken when terminating the wires as the conductors should
be stripped to 4 to 5mm maximum and the wire ends must be pushed fully into the
connector before tightening. These cables pass through a slot cut in the aluminium
housing please ensure that no bare conductors are clear of the surface of the connector
strip prior to closing the housing.
Before use, download and install Atrato software from memory stick or website.
The Atrato low-ow ultrasonic owmeter should be setup using the USB interface and a
suitable computer. Below is a screen shot of the Conguration screen.
= Operates on External Power or USB = Operates on External Power only
Atrato Connector Assignments
Pin No Label Function
1 Relay NO Isolated relay contact; normally closed contact 24V 100mA
2 Relay Common Isolated relay contact; change over contact 24V 100mA
3 Relay NC Isolated relay contact; normally open contact 24V 100mA
4 4-20mA Analogue current (4-20mA) output (reference to 0V)
5 0-5/10V Analogue voltage (0-5/10V) output (reference to 0V)
6 PNP Output 1 open collector PNP OR Input 1 (5-24V dc) e.g. switch to pin 9
7 NPN Output 2 open collector NPN OR Input 2 (5-24V dc) e.g. switch to pin 8
8 0V External ground; common for PNP, NPN and Analogue outputs
9 +9 -24V dc External power; 9V ~24V (> 12V for Analogue output)
The 3 tabs at the top of the display are, “Conguration, “Real Time-View” and “Advanced”.
The panel below shows the functions of the panel on the top left of the screen.
Control buttons to apply the settings and recover previously set parameters.
Send settings to system
Save settings to a file on the computer
Open settings file on the computer
Operate or stop flowmeter. PAuSEd shows in the real time view the meter is stopped
Test full scale analogue output
76
DISPLAY
DISPLAY MODE: The down arrow selects from the
various display and Atrato functions.
The options are:-
RATE – The display will show ow rate only.
TOTAL – The display will show total ow only.
BOTH – The display can be cycled from rate to total
using the left hand button on the Atrato or
the left button in the “Real time window”. A
remote input can be used if either pin 6 or
pin 7 has been utilised.
BATCH – This is a separate function and several
selection parameters change once this is
chosen. See batching option on page 15.
TOTAL DP POSITION: Use the drop down menu to
choose the required decimal point position.
DECREASE TOTAL FOR –VE FLOW: The meter will
not register negative ow unless this box is checked.
For reverse ow the rate will show a “-“ sign before the
rate and the total will be reduced accordingly. One of
the transistor outputs (PNP or NPN on Pin 6 or Pin 7)
could be congured to give a logic level when reverse
ow is detected.
RIGHT PUSH BUTTON RESETS TOTAL: Check this
box if you require the total resettable by either the right
push button or remotely through pin 6 or 7. Selectable
only in “Total” or “Both” modes.
UNITS: A drop down menu offers the choice of - Litres,
cc, gms, kg, US gallon, Imperial gallon or Custom units.
Selecting Custom Units leaves the Units area blank.
RATE (units per): This is the time base for the ow rate
and has the option of Second, Minute or Hour.
RATE DP POSITION: Use the drop down menu to
choose the required decimal point position.
SCALE
SCALE FACTOR ADJUSTMENT: This is a ne tune
adjustment on the signal to compensate for errors
introduced by erratic ow or other system irregularities.
DENSITY: The owmeter is fundamentally a volumetric
device but a density gure can be entered here if one
of the mass units are selected. Caution must be used
however as there is no temperature/density correction.
EXTERNAL CONNECTIONS
PIN 6 (NPN): Pin 6 can be congured as either an
output or an input but not both simultaneously. If one
input and one output is required the user must determine
whether they require a NPN or PNP output and use the
appropriate terminal for each action. The options are –
Not used
PIN 7 (PNP): Pin 7 can be congured as either an
output or an input but not both simultaneously. If one
input and one output is required the user must determine
whether they require a NPN or PNP output and use the
appropriate terminal for each action. The options are –
Not used
NOTE: the operation for Pin 6 and Pin 7 are identical with the exception of the
type of transistor output. These instructions are the same for Pin 7 except the
Pin 6 (PNP) would read Pin 7 (NPN).
Output Input .
Output Input .
98
PIN 6 (PNP)/PIN 7 (NPN)
Notes on using electrical inputs to the Atrato
The contents of this box will change depending on the
selection made in the External connection box.
If OUTPUT is selected the check box options are:Pulse
PULSE: Enter the number of pulses per unit volume
required. This gure can be adjusted to suit the
application and the ow range required from the meter.
The maximum output frequency is 400 Hz. So care must
be taken to ensure that this pulse rate is not exceeded.
E.g. 10 L/Min at 400 Hertz equals (400 x 60)/10 = 2400
Therefore 2400 pulses per litre is the maximum resolution
for 10 litres per minute assuming maximum frequency
output. If the meter is being used up to 5 L/Min the pulse
output and so resolution could be doubled to 4800 P/L.
FLOW SWITCH: The lower area of the section changes
so that the user can enter the Threshold at which the
transistor is to operate.
THE RESET OFFSET (%): (Hysteresis) is either negative
or positive depending on whether a falling or rising alarm
is required. This is to prevent output utter if the ow
is cycling around the set point value. To reduce power
consumption the transistor is off if positive hysteresis
is selected and only powers when the threshold is
exceeded. If negative hysteresis is chosen the transistor
is on up to the set point. The increments are preset and
can be cycled through using the + &- buttons. If more
than one set point is required either both transistors
must be used or one transistor and the relay. The right
hand push button (or pin 7 set as an input) temporarily
cancels the relay and resets the system.
Flow switch Reverse ow
Pin 6 : In input mode, the PNP open collector output is disabled, and the input pin
responds to an external input voltage at TTL levels (VinH ≥ 2.4V; VinL ≤ 0.8V). This input
must to be driven by an external voltage supply which can safely be in the full range of
zero to the external supply voltage. Because of the potential for conict should the PNP
output be activated accidentally, Titan Enterprises Ltd recommend a resistor so that the
sink current cannot exceed 5mA. An example circuit is given below:
Example Input to Pin 6
Pin 7 : In input mode, the NPN open collector output is disabled, and the input pin
responds to an external input voltage at TTL levels (VinH ≥ 2.4V; VinL ≤ 0.8V). This input
must to be driven by an external voltage supply which can safely be in the range of
zero to 24V. Because of the potential for conict should the NPN output be activated
accidentally, Titan recommend a resistor so that the source current cannot exceed
5mA. An example circuit is given below:
EXTERNAL CONNECTIONS
If INPUT
function can be operated remotely by using a switch
and resistor to apply a suitable voltage (between 5 and
24 Vdc) to either Pin 6 or Pin 7 as described on page 11.
is selected either the left or right push button
Example Input to Pin 7
1110
RELAY
RELAY MODE: If the relay is required for a ow switch
check the ow switch box and a further set of options
for set point and hysteresis will appear.
THRESHOLD: Set the required ow rate for the ow
switch. The Reset Offset (%) (Hysteresis) is either
negative or positive depending on whether a falling
or rising alarm is required. The relay has change over
contacts but to reduce power consumption the relay
is off if positive hysteresis is selected and only powers
when the threshold is exceeded. If negative hysteresis
is chosen the relay is on up to the set point. The
increments are preset and can be cycled through using
the + &- buttons. If more than one set point is required
either both transistors must be used or one transistor
and the relay.
ANALOGUE OUTPUTS
ANALOGUE MODE: There are four options on the
drop down menu: Not Used, 4-20mA, 0-5 Volt and
0-10 Volt. Once the selection has been made a further
two boxes for entry of the analogue output at zero ow
and full scale appear. These are numeric entries in the
units and time base selected earlier.
OUTPUT/DISPLAY DAMPING
VIEWING FILTER: This prevents the display, ow
switches and analogue outputs from jittering with
irregularities in the ow from say a peristaltic pump. The
increments are arbitrary with the degree of damping
approximately doubling with each level. Increments go
up to F8, which may take up to a minute to stabilise.
REAL TIME VIEW TAB: The large display reects the
meter readings showing on the Atrato LCD Display, if
tted and will mimic that display. The buttons either
side have the functions selected on the ‘Conguration’
screen and also work in parallel with the buttons on the
Atrato owmeter unit itself. The small window below the
rate and total display shows various relevant operational
parameters whilst the unit is operating e.g. relay status
and frequency output if these options are selected; and
overll or under ll if in batch mode.
FLOW RATE: This is the instantaneous ow rate and is updated
approximately every 100 milliseconds.
FILTERED FLOW RATE: This is the ltered ow rate and is identical to the LCD
display on the owmeter (if tted) and the speed of change
will depend on the lter setting. The lter will also affect
the response time for the analogue outputs and the ow
switches.
TOTAL: The total liquid passed since the last reset.
PIN 6 & 7: If no selection is made “Not used” will be in the Notes
column. See following text and chart for the display legends.
OR:- When Pin 6 or 7 is set to “Output” and set to “Pulse”
this will display the frequency of the running output and the
number of pulses per litre selected.
OR:- If it is selected to “Output” and set to “Flow switch” the
Value column will show the transistor status either “low” or
“high” and the notes will show the selected switch points.
OR:- If “Output” and “Reverse Flow” are selected the Value
column will show either “low” or “high” depending on
forward or reverse ow.
OR:- If “Input” is selected the Value column will show “high”
or “low” depending on the switch condition and “Input
Logic level” in the Notes column.
1312
The chart below shows the various display messages for various operating functions.
During operation only one message will be shown for each parameter.
Parameter Value Notes Function
Flow rate 2.5000 Litres per minute Units selected in configuration
Filtered flow rate 2.4981 Litres per minute This will lag flow rate
Total 16.95 Litres Total passed since last reset
Pin 6. Off Pin not being used
2000 pulses/Litre
On Will turn off when rate below 2.7 Flow switch set to 3 L/Min 10% -ve flow.
Off Will turn on when rate above 3.3 Flow switch set to 3 L/Min 10% +ve flow.
Forward Direction of flow Reverse flow tab selected
show high when remotely operated
show high when remotely operated
Pin 7. Off Pin not being used
152.1Hz Output Pulses (2000 per Litre) Pulse output selected
On Will turn off when rate below 2.7 Flow switch set to 3 L/Min 10% -ve flow.
Off Will turn on when rate above 3.3 Flow switch set to 3 L/Min 10% +ve flow.
Forward Direction of flow Reverse flow tab selected
show low when remotely operated
show low when remotely operated
Relay Off Relay not being used
On Will turn off when rate below 2.8 Flow switch set to 3 L/Min 10% -ve flow.
Off Will turn on when rate above 3.4 Flow switch set to 3 L/Min 10% +ve flow.
Off Total is reset Batching awaiting start command.
On Running Starts when Left button is pressed
Batch 0.00 0% will run to > selected volume When valve opens the volume will count up
Relay off Done This indicates the batch is complete
Batch (Vol) Total fluid delivered This shows the actual delivery volume
dispense.
Pressing the button again continues the dispense.
Pressing restart (RH) button starts the batch again.
152.1Hz Output Pulses (2000 per Litre)
Low Input logic level
Low Input logic level
High Input logic level
High Input logic level
Relay off Paused
Left push button selected will momentarily
Right push button selected will momentarily
Left push button selected will momentarily
Right push button selected will momentarily
This is if pause (LH) button is pressed during
Frequency output for current flow rate @
PIN 7: The display for “Pin 7” will function the same as “Pin 6” (see page 13).
RELAY: If no function is set for the relay the Value column will show “Off” otherwise
it will display the function and its operating parameters.
BATCHING If Batch is selected in the “Display mode” the relay is automatically
OPTION: assigned to the total display for batching pre-set volumes of liquid. The
preset batch size can be entered in the relay box. This value will be seen
on the LCD display and will count down when the left hand start button is
pressed. The batch can be interrupted by pressing the right hand button,
in the paused state a further press of the right button cancels the batch. If
you wish to continue the batch from the paused state the left hand button
continues the dispense from the point it was interrupted.
If an alternative batch size is required after the unit is disconnected from
the computer pressing both buttons together for 3 seconds will permit
the batch size to be altered by using the right hand key to increment the
digit that is ashing and the left hand button to advance to the next digit.
Holding the left button for 3 seconds enters the selected numbers and the
meter is ready to begin batching. Both buttons can be operated remotely
if required e.g. for remote start/stop signals.
ATRATO ADVANCED USER TAB
1514
PIN protection: This is for both the advanced and standard features.
Accumulated total: Accessible and resettable from both the front panel and
through the software.
Minimum flow cut-off: This is to ensure that inaccurate low ow measurements are
not recorded or returned. This is normally set to the minimum
ow for the meter.
Median filter: This is a lter that will remove short term erroneous ow
results.
Signal quality: The bar graph should be green, orange is a low signal quality
and red is very poor. This usually signies gas break-out in the
uid or a system not fully bled.
PIN protection.
There are 2 possibilities for the PIN protection:-
To use these features it is rst necessary to create a PIN. This is a four digit number in
the range 0001 to 9999. Setting a value of 0000 tells the software there is no PIN and
this is how to remove the PIN. After allocating a PIN these check boxes can lock all
of the settings or just the advanced user, including the accumulated total reset. If you
forget your PIN please contact you supplier for the default value. Once entered, all the
setting parameters remain visible. In the ‘Help’ menu, the user can ‘Log On using PIN...’
but the user will be prompted for the PIN prior to making any changes. If the display
version of the meter is being used and the display is set to view totals or rate and total
the left hand button will cycle through the various options.
Rate The display shows units and time base e.g. 1.0 Ltr/min.
Total The display is static with just the volume e.g. 10.3Ltr.
Accumulated total The display cycles “Ac tot” and the volume e.g. 120.3Ltr.
If the accumulated total is displayed and “right button resets totals” is selected in the
conguration screen it can be reset by pressing both buttons simultaneously for 4
seconds. If PIN protection is selected the display will change to a ashing curser awaiting
the pass word. The left button increments the value and the right button advances to
the next digit. After all 4 numbers are entered pressing and holding the right key for 4
seconds resets the Accumulated Total.
If a computer is being used for the reset simply press the “reset accumulated total” box.
Accumulated total.
Accumulated total DP position.
The chevron in the decimal point box calls a
drop down selection showing the possible
decimal point positions. Please ensure that the
value selected has sufcient resolution for your
anticipated accumulation period.
This resets the accumulated total. If PIN
protection is selected a PIN will be required.
Measurement control.
This sets the minimum ow for the meter. The
default is the normal minimum under ideal
conditions for the size of meter. This value can
be adjusted to suit the operating conditions.
e.g. If the automatic gain control is working
hard with an attenuating (ultrasound absorbing)
uid the threshold of operation is automatically
raised assuming that the background noise will
also be higher. This may not be the case and
the meter may perform reliably at a lower ow.
One method of establishing a safe minimum
ow is to set a low minimum cut off value with
no ow and a full pipe. Check the totaliser or
rate meter to see if any ow is being recorded if
yes increase the minimum ow value and repeat
until no ow is seen with zero ow in the pipe.
Median filter.
This lter removes short term anomalies in the recorded e.g. an air bubble passing
through. It should be used with caution as it is theoretically possible that over use of this
feature could lead to incorrect results in certain circumstances. Under normal operating
conditions the meter returns around 25 results per second and a regular occurrence at
this frequency could be completely ignored thus causing problematic readings.
The lter is a moving window taking the middle number from an odd number of results
selectable between 1 and 21. It is not an average or mean and it is designed to totally
ignore one or more results. A simple example is shown on page 18 for a median value
of “3”.
1716
Recorded flow Used flow
0 0
1 1
1 1
2 2
2 2
3 2
0 3
3 3
4 4
4 4
4 4
Recorded and numerical order
2 3 0 0 2 3 2 is used
3 0 3 0 3 3 3 is used
0 3 4 0 3 4 3 is used
The seventh ow in the table above is zero. This could have been a small bubble passing
through the 710 meter which has a 1mm bore which could completely absorb the
ultrasound. The median lter completely ignores this reading and for the zero reading
returns the value of 3 from the results either side. This lter is particularly useful at low
ows where a small dip in value could drop a result below the internal cut off levels.
5 Technical Specification
Linearity ±1.0% of reading over flow range
Repeatability ±0.1% from 25% to 100%
±0.5% from 0 to 25%
Housing IP54
Temperature range -10 to 60°C assembly with enclosed electronics
or -10 to 110°C sensor only (for use with remote electronics)
-10 to 60°C remote electronics
Fluid temperature range -10 to 60°C or -10 to 110°C with remote electronics
Storage temperature -20 to 110°C
Pressure rating 10 bar standard, 30 bar with stainless steel end fittings
Pulse output PNP or NPN maximum frequency 400 Hz
Relay 24 Vdc 500mA max non inductive
PIN 6 transistor output PNP 24 V @ 20mA maximum
Input Pull down resistor required (10K ohm)
PIN 7 transistor output NPN 24 V @ 20mA maximum
Input Pull up resistor required (10K ohm)
LCD display Reflective
6 x 8mm high main characters
2.5mm enunciators
Gal. cc. Kg. gms. Ltr. /min /Hr /Sec
4 – 20mA output into 250 ohm maximum
14 bit resolution
±0.1% linearity (plus flowmeter accuracy)
0 – 10 Volt output 14 bit resolution (14 Vdc min supply voltage)
±0.1% linearity (plus flowmeter accuracy)
0 – 5 Volt output 12 bit resolution
USB TypeA connector Windows XP or later
Wiring terminals 1mm maximum
Power supply 10 – 24 Vdc (15 -24 Vdc for 4-20mA or 0-10 V)
Power consumption 110mA (plus analogue output current)
Connections 1/2” BSP male PEEK or 1/2” NPT or BSP 316 stainless steel. 3/8” John Guest push-in
MATERIALS OF CONSTRUCTION
End fittings PEEK, food and medical grade or 316 Stainless steel
Flow tube 316 Stainless steel as standard
Alternative – Borosilicate glass
Seals Viton as standard
Alternative – Nitrile, EPDM, Silicon
Housing Aluminium extrusion
End caps ABS
Mounting bracket ABS
Ext. elastomeric seals PTE
1918
Distributed by:-
Taniya Infratech Co., Ltd.
965/234 Rangsit-Nakornnayok Rd.,
Prachathipat, Thunyaburi, Pathumthani 12130
Tel : 02-5498009 Fax : 02-5498010
www.taniyainfratech.com, www.thaiflowmeter.com
Email : info@taniyainfratech.com
TITAN ENTERPRISES LTD.
Coldharbour Business Park, Sherborne, Dorset DT9 4JW
Phone: +44 (0)1935 812790 Fax: +44 (0)1935 812890
Email: sales@atratoowmeters.com
www.atratoowmeters.com
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