Insertion Turbine
Sight Flow Indicators
Calibration
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Flowmeters: Cub 5 multi function counter and rate meter Instruction page
Contents
1.0 - Cub 5 Overview
2.0 - Cub 5 Dimensions & specification
3.0 - Cub 5 Programming
4.0 - Cub 5 Counter modes & scaling
5.0 - Cub 5 Typical sensor wiring
Flowmeters: Cub 5 multi function counter and rate meter specification
Display
LCD 8 digit total 6 digits for rate with “R” enunciator 5 programmable decimal points for both totaliser and rate indicator
Signal inputs
Universal pulse frequency input compatible with reed switch, Hall effect detector, Voltage pulse. Maximum input frequency 50 to 20Khz depending on sensor type minimum 0.01Hz,
Power
9 - 24 V dc @10mA to 125mA depending on backlight and relay set up.
Enclosure
IP66 (NEMA 4X) High impact glass polymer, front when fitted to panel.
Temp
-35°C to +35, 50, 60,70,75 or 80°C. depending on backlight & its brightness setting.
K Factor range
0.0001 - 99.9999
Programming is via the key pad and may be security code protected.
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Titan Flowmeters: Cub 5 multi function counter and rate meter
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Titan Flowmeters: Cub 5 multi function counter and rate meter - 1.0 Overview
When power is applied to the unit it will perform a self diagnostic and LCD
check and then display its revision level. If all “P”s appear in the display press
SEL and check all of the data set ups. The CUB5 can be set up to function a
single counter, rate meter, dual counter or a combination of single or dual
counter and rate meter, an optional relay card is also available. For the
counter the unit receives the incoming pulses and multiplies them by the count
scale factor. The count can be reset to zero by a manual or remote reset operation
and if power is lost during counting the last total is saved to the internal
memory. This feature permits consecutive counting even between shifts or accidental
power failure. If the maximum display of 99,999,999 is exceeded the
display will flash “tot OvER” indicating an overflow condition. The rate display
uses a time interval method. The unit counts the number of negative edges
until the next pulse is received after the selected minimum update time. The
number of pulses during this elapsed period is multiplied by the rate scaling
factor , this number is used to calculate the rate display. For low frequency
inputs the rate minimum update time can be programmed for the appropriate
response. The relay may be allocated to either the rate or total A.
In the normal operating mode the display indicates (to the left of the
display) either :-
“R” This indicates that the display is showing rate.
“b” This indicates the “B” count is being displayed.
“t” This indicates the set point (relay) status.
No enunciator indicates that the “A” count is being displayed.
If the select button is enabled this will toggle between rate and total. If
display scroll in enabled the unit will cycle between all displays automatically
approximately every 4 seconds. If both are enabled the select
button will hold the display on its current function until the button is
released.
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Titan Flowmeters: Cub 5 multi function counter and rate meter - 2.0 Dimensions
The drawings below show the CUB5 with its attached mains power supply and the wall
mounted enclosure. The panel cut out is 68.5 X 33.5 mm, the minimum vertical and
horizontal pitches are 55 & 75mm the panel thickness must be between 1.3 & 5mm.
Titan Flowmeters: Cub 5 multi function counter and rate meter: 3.0 Programming
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There are four stages to programming the CUB5. Input set up, Rate set up, Front
panel set up and if the relay card is fitted Set point set up.
For numeric entries the RST button increments display.
SEL advances to next digit or function.
On power up the display will display all of the LCD segments and the software revision.
To enter the programming mode press SEL button for 2 seconds. The display will then
show pro - no. RST exits the programme mode SEL enters the 4 set up menus.
This is the most common mode for totalising, Under normal operating conditions the
counter will increase the display with every pulse received on input “A” . If input “B”
has a low logic level the counter will reduce the display. 7 other modes are available
but as these are rarely used they have been detailed on another sheet.
Total decimal point select 0 0.0 0.00 0.000 0.0000 0.00000 or none (This is independent
of the rate decimal point). A second number of decimal points may be required
for input “B” if alternative count modes are selected. When the desired number
has been entered press the SEL key to advance to the next level.
This is the totaliser scale factor the incoming pulse is multiplied by this number to increment
the counter (the reciprocal of the ‘K’ factor). If alternative count modes are s elected
a second scale factor will be required for counter “B” RST increments the
number SEL advances to the next digit. Hold the SEL key for 2 seconds to advance to
the next level.
Total decimal point select 0 0.0 0.00 0.000 0.0000 0.00000 or none (This is independent
of the rate decimal point). A second number of decimal points may be required
for input “B” if alternative count modes are selected.
DUAL COUNT MODE ONLY
This is the totaliser scale factor the incoming pulse is multiplied by this number to increment
the counter (the reciprocal of the ‘K’ factor). If alternative count modes are s elected
a second scale factor will be required for counter “B”
Resets counters at power up. No, count “B”. Yes, count “A”, and both “A & B”.
User input. This permits the user input connection to be connected to common with an
external switch for remote control purposes.
“NO” User input disabled.
“Pro Loc” Program mode access.
“d-SELECt” Display select.
“RESET” Resets the selected counts to zero.
“STORE” Freezes display but the internal counts continue.
“STOR RST” Resets the selected counter(s) after storing the count.
“INHIBIT” Freezes the display and the input signal is ignored.
If “INP A_B” is “DUAL CNT” and “USER INP” not “DSP SEL” is set the program enters an extra step
“USEr ASn” the user input may be assigned as follows.
“Count A” A input count. “Count b” B input count. “BOTH A-B” A & B counters.
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Enable rate functions Yes or no. No skips rate functions.
Select rate decimal point 0 0.0 0.000 0.0000 0.00000 (this is independent of total decimal point). Alter as per cnta dp.
Rate display. This is the flow
rate you wish shown on the
display for the frequency
input at the next program step.
Increment as cnta scf.
Rate input. This is the frequency
at which you require
the display set above.
This is the minimum update
time, I.e. the minimum amount
of time between display updates.
It is effectively display
filtering and will average out
jittery rate displays set between
0.1 & 99.9 Sec
Maximum update time. Effectively
a minimum frequency cut
off as the display goes to
zero if no pulses are received
within the time set between
0.1 & 99.9 seconds.
If yes this permits the SEL
button to toggle through enabled
displays.
With “cn ud” selected the reset
enable is either yes or no. For
other options with alternative
count modes s ee the panel
at the end of the sheet.
If yes is selected the display
will automatically scroll
through the enabled displays.
Enter the desired backlight colour,
red or green.
These features are only available
on backlit models.
Enter the desired display
brightness 1-5.
To lock the programming mode
a security code must be entered.
This may then be
used in conjunction with the
“USEr InP” “Pro Loc” as detailed
on the previous page.
Yes restores internal default
settings.
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This function is only active
when the relay card is fitted.
Assign relay to Count a or rate.
Select relay action latch t-out or
bound see chart at bottom of page for
the individual functions.
If the spt act is set to t out set the
time in seconds that the relay is to
hold after the set point has been
reached.
Enter the value at which you require the
relay to operate. For count A it can be
set between -9999999 & 99999999,
for rate 0 - 999999.
Set the relay operation at power-up.
Save this will restore the relay to the
same state as at power down.
On will activate the relay on power up.
Off will de-activate the relay on
power up. This parameter is not active
if the t out mode is selected.
The counter resets to either to spt
(output ac tivates at 0.) or to zero.
Boundry mode is only active when
programmed for to zero (reset to
zero).
This is an auto reset option and it resets
the counter each time the set point is
reached at output end or start. It may
be set to no no reset out strt or out
end, out end is only active if t out is
selected.
Manual or remote (if the option is s elected
in rst enb) In count mode
counter A only.
With the backlit version the colour of
the display can be programmed to
change when the set point is
reached.
If “rst enb” is set “dual cnt” the front panel button can be enabled to reset:
counta - counter A
both a b - counters A & B
countb - counter B
dsplay - displayed count
no - neither counter may be reset from the front panel.
Set point functions
Setting | Description | Activates when | De-activates
latch | Relay latches | Count = set point | On reset if spt rst = yes
T-out | Times out | Count = set point | After time out time
bound | Boundary mode | Count > set point | Count < set point
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Titan Flowmeters: Cub 5 multi function counter and rate meter: 4.0 Counter modes and scaling
There are 8 count modes, the selection determines the functions of input “A” and input “B” and assigns the function
to either counter A, counter B, rate indicator or a combination of all three. The “user input” programming for
the inhibit functions can be used with any of the count modes. Input “A” is always the rate indicator.
Cnt ud
Counter “A” will increment or decrement the counter on every negative edge of input “A” depending
on the logic state of input “B”. A high level will cause the display to increment a low
level to decrement.
Rte cnt
Counter “A” increments the display for every negative edge received on the input “B”. The
direction is always plus and the input “A” is used exclusively for rate input.
Dual cnt
Both counters “A” and “B” increment the count on every received negative edge. This is the
only mode in which dual counting is a available.
Q.uad1
Quadrature counting modes are used primarily in positioning and anti-jitter applications. This
requires two identical square wave signals one of them shifted 90° relative to the other. The
operating function is as follows. Input “A” serves as the count input and input “B” as the
quadrature input. A negative edge at input “A” will increment the counter when the quadrature
input “B” is at a low level. If input “A” has a positive edge when input “B” is at a low level the
counter decrements. When input “B” is at a high level all level changes at input “A” are ignored.
These logic states should eliminate any false counts due to jitter or backlash.
Q.uad2
When double edge input counting is used the quadrature input works the same as single
quadrature input when the put “B” is low. When input “B” is a high level counts at input “A”
are no longer ignored. Instead the logic rules for input “A” are complimented allowing both
rising and falling edges on input “A” to be counted. This effectively doubles the resolution of
input “A”.
Q.uad4
This is one step further where both inputs count on both edges effectively quadrupling the input
resolution.
add/add
This effectively sums both inputs even if the pulses occur simultaneously.
Add/sub
In this mode input “A” increments the counter and input “B” decrements it giving the net difference
between the two signals.
Scaling the counter
The CUB5 multiplies the incoming pulse by the scale
factor and has the range of 0.0001 to 99.9999. The
scale is factor can be expressed as :-
Scale factor = 1/Pulses per measured unit.
The indicator does not automatically calculate the position
that has been set for the decimal place (DP) so the
equation must be modified to account for this :-
Scale factor = 1/Pulses per unit X DP position
Where the least significant digit for the DP position = 1
E.g. for no decimal places DP = 1
1 decimal place DP = 0.1
2 decimal places DP = 0.01
3 decimal places DP = 0.001
4 decimal places DP = 0.0001
5 decimal places DP = 0.00001
Increasing the scale factor to greater than 1 does not
improve the resolution of the system.
Counter scaling example
If a flowmeter ‘K’ factor is 2024 pulses per litre and you wish
the counter to display litres to two decimal places the equation
is as follows :-
Scale factor = 1/2024 X 0.01. = 0.049407
Scaling the rate indicator
To scale the rate meter the operator need only set the rate
display value for the relevant frequency. This should be set
towards the maximum range of the measurement. If the display
shows “r OLOLOL” it is over-ranged and the unit must be
re-calibrated for a lower full scale or a lower resolution.
Scaling rate example
For the flowmeter shown above, if the display is to measure in
litres per minute to two decimal places and full scale is 2 L/min.
The “RATE DISPLAY” would be set to 2.00 and the “RATE INPUT”
set to 67.5. This number is derived from the number of
litres per unit time base multiplied by the number of pulses per
litre and reduced to a frequency.
RATE INPUT = Pulses per unit/RATE DISPLAY X time base adjustment
RATE INPUT = 2.00 X 2024÷60 = 67.4646
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Titan Flowmeters: Cub 5 multi function counter and rate meter: 5.0 Typical Sensor Wiring
Installation guidelines
Always use good wiring
practice, never run signal
and power cables in the
same conduit. Where
possible use screened
signal cables and follow
good instrument practice
when earthing the
screen. Within an instrument
case or panel run
the signal cables as far
as possible away from
contactors, relays or any
other electrically “noisy”
apparatus including
transformers and motor
controllers. Use short cable
runs wherever possible.
It is recommended
that the power supplied
to the unit is protected by
an appropriate fuse or
circuit breaker.
Note :- The input circuit for the CUB5 can be configured for almost any type of sensor. Please contact your sales office if your sensor type
differs from the examples shown above.
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