Titan Atrato 710 Скачать руководство пользователя страница 11

11

PULSE:

  Enter the number of pulses per unit volume 

required. This figure can be adjusted to suit the 
application and the flow range required from the meter. 
The maximum output frequency is 1000 Hz. So care 
must be taken to ensure that this pulse rate is not 
exceeded. 

E.g. 10 L/min at 1000 Hertz equals (1000x60)/10 = 6000 P/L

Therefore 6000 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 12000 P/L.

SINGLE FLOW ALARM:

Checking this option opens up input boxes for 
THRESHOLD; LATCHING and INVERT
Set the 

Threshold

 to the flow value you require the 

transistor to operate. The logic of operation can be 
adjusted with the INVERT check box (see left).

The 

Latching

 box gives the user three options of None; 

High Threshold and Low Threshold.
•   “None” will cause the alarm to be triggered when the 

threshold flow is met. The alarm state will then reset 
in accordance with the user set Hysteresis.

•   “High Threshold” will cause an alarm signal to Latch 

on when flow is seen above the set value

•   “Low Threshold” will cause an alarm signal to Latch 

on when flow is seen below the set value

Hysteresis (%): This is used when Latching is Set to 
NONE to prevent “fluttering” of the alarm signal when 
flow is around the threshold level.

LATCHED

 alarms will remain Active and the Local Display will show “LATCH” until they 

are reset. RESET LATCH ALARMS by either a signal Input on one of the other Input/
Output PINS, or by Pressing and Holding the Right Hand Button on the Local Display 
on the Flow meter for 3 seconds. 
Note the alarm points are driven by the display value on the “flow reading” screen. Any 
changes to the filter value of the display will affect the response time of the alarm points 
so there are two adjustable parameters to ensure “fluttering” does not happen with 
small flow fluctuations - response time and hysteresis.
INVERT – This Check box allows the user to invert the operation of the signal

• 

Checked – Alarm output logic HIGH

For details see the Alarm logic table or hover mouse over the set point to see the action 
of the output with the chosen settings.

Содержание Atrato 710

Страница 1: ...INSTRUCTION MANUAL Ultrasonic Flowmeter Range TM B r e a k t h r o u g h F l o w m ete r T e c h n o l o g y...

Страница 2: ...TM...

Страница 3: ...1 General 4 2 Installation 5 3 Electrical 6 4 Setup 7 5 Technical Specification 21 CONTENTS Page No...

Страница 4: ...General 4 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 N Nitrile E EPDM S Silicon Fifth digit end fittings 0 3 8...

Страница 5: ...on the flowmeter to keep any gas in solution We recommend 500mbar plus two times the fluid vapour pressure If there is any chance of air passing through the system mount the Atrato in a vertical pipe...

Страница 6: ...re conductors are clear of the surface of the connector strip prior to closing the housing 3 Electrical Atrato Connector Assignments Pin No Label Function 1 Relay NO Isolated relay contact normally cl...

Страница 7: ...ions of the panel on the top left of the screen Control buttons to apply the settings and recover previously set parameters 4 Setup 7 Send settings to system Retrieve Settings from meter Open settings...

Страница 8: ...bs whilst adjusting the User Settings The Flow Details window may be further reduced or expanded using the minimise and maximise icons respectively in the top right hand of the window USER SETTINGS TA...

Страница 9: ...ill not give outputs Display Mode The down arrow selects from the various display and Metraflow functions The options are Rate The display will show flow rate only Total The display will show total fl...

Страница 10: ...ppropriate terminal for each action The options are Not used Output Input PIN 7 NPN Pin 7 can be configured as either an output or an input but not both simultaneously If one input and one output is r...

Страница 11: ...dance with the user set Hysteresis High Threshold will cause an alarm signal to Latch on when flow is seen above the set value Low Threshold will cause an alarm signal to Latch on when flow is seen be...

Страница 12: ...or Reset Alarm 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 13 This option allows the user to...

Страница 13: ...rent cannot exceed 5mA An example circuit is given below Example Input to Pin 7 Pin 6 In input mode the PNP open collector output is disabled and the input pin responds to an external input voltage at...

Страница 14: ...ve 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...

Страница 15: ...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...

Страница 16: ...tab selected Low Input logic level Left push button selected will momentarily show high when remotely operated Low Input logic level Right push button selected will momentarily show high when remotel...

Страница 17: ...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...

Страница 18: ...he PIN protection To use these features it is first 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...

Страница 19: ...nd the user can click the FASTER button to adjust the measurement window a stronger signal point A RED graphic is a very poor signal ORANGE indicates a weak signal and GREEN is a Good strong signal Th...

Страница 20: ...rameter you wish to log choose a sensible sampling period i e for longer data logging periods choose 10 second intervals to limit the size of the file created and then click the Icon under Storage Fil...

Страница 21: ...ed 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...

Страница 22: ...TITAN ENTERPRISES LTD Coldharbour Business Park Sherborne Dorset DT9 4JW Phone 44 0 1935 812790 Email sales atratoflowmeters com www atratoflowmeters com Distributed by 01 19 1...

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