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Dwyer Instruments PUB Series Скачать руководство пользователя страница 15

3: Operating Procedures

11

3.1

Setting-up the Instrument

3.1.1 Using the instrument for the first time

Before you use your PUB for the first time you should first charge the battery, then select the display language
and set-up the internal clock, as described below.

Charging the battery

1.

Connect the external battery charger to the charger socket at the bottom of the instrument then switch on the
utility supply.

Selecting a language

The first time you switch on the instrument you may be asked to select a user language.

1.

Switch on the instrument by pressing the

ON/OFF

button.

2.

If necessary, select the required language using the

UP/DOWN

scroll keys then press the

ENTER

key.

2.

The instrument should indicate

CHARGING

and

an animated battery symbol indicates that the
battery is taking on charge.

3.

Leave the instrument on charge for 6.5 hours
before using it for the first time.

CHARGING

DD-MM-YY HH:MM:SS

3.

The selected language will be the default when
the instrument is next used. To change the
language again select the

Change Language

option in the

SETUP INSTRUMENT

screen (see

below).

4.

The initialization screen will be displayed, giving
details of the instrument’s serial number and
software revision details.

5.

Press the

ENTER

key to start the instrument.

6.

This is the

MAIN MENU

and is the starting point

for all the operations described in this chapter.

Note: Data Logger and RS232/USB functions are
not implemented on the PUB.

Serial# 0012345 V 00.00.000

Press

to start

MAIN MENU

DD-MM-YY HH:MM:SS

Quick start

View/Edit Site Data

Data Logger

Setup RS232 /USB

Setup Instrument

Read flow

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Содержание PUB Series

Страница 1: ... and Operating Instructions Bulletin F PUB Copyright 2012 Dwyer Instruments Inc Printed in USA 9 12 Version 1 0 DWYER INSTRUMENTS INC P O BOX 373 MICHIGAN CITY INDIANA 46360 USA Phone 219 879 8000 www dwyer inst com Fax 219 872 9057 email info dwyer inst com ...

Страница 2: ......

Страница 3: ...strument 11 3 1 1 Using the instrument for the first time 11 3 1 2 Enabling disabling the backlight 12 3 2 Using the Quick Start Menu 13 3 3 Using the System at a Regularly Monitored Location 16 3 4 Managing Named Sites 18 3 4 1 Setting up a new site 18 3 4 2 Changing a site name 19 3 5 Instrument Calibration 19 3 5 1 Adjusting the zero cut off 19 3 5 2 Adjusting the set zero flow offset 19 3 5 3 ...

Страница 4: ... 2 Pulse output 26 4 Maintenance Repair 29 4 1 Warranty Return 29 5 Troubleshooting 30 5 1 Overview 30 5 2 General Troubleshooting Procedure 31 5 3 Warning Status Messages 32 5 4 Test Block 34 5 5 Microprocessor Reset Facility 35 5 6 Diagnostics Display 35 6 Specification 37 ...

Страница 5: ... pipes in the range 0 5 to 4 5 inches 12 7 to 114 mm and the PUB B with pipes in the range 2 to 40 inches 50 8 to 1016 mm Easy to operate the PUB standard features are Large easy to read graphic display with backlighting Simple to follow dual function keypad Simple Quick Start set up procedure Continuous signal monitoring Pulse output volumetric or frequency 4 to 20 mA 0 to 20 mA or 0 to 16 mA out...

Страница 6: ...distance between the transducers to obtain the strongest signal Figure 1 1 Operating modes Fluid flow Fluid flow Fluid flow Fluid flow Fluid flow U U U U D D D Separation Distance Separation Distance Separation Distance Separation Distance Reflex mode Reflex mode double bounce Reflex mode triple bounce Diagonal mode This is the mode most commonly used The two transducers U D are attached to the pi...

Страница 7: ...uropean adaptors 110 240 VAC 4 to 20 mA Pulse Output cable 2 lengths of chain Test block Transducer cables x2 79 inches 2m long Transducer set x2 type A or type B depending on model Set of transducer holders used for mounting the transducers Ruled separation bar 2 piece Ultrasonic couplant with syringe dispenser used when mounting the transducers Manual 4 to 20 mA Test Block Power Supply Pulse Out...

Страница 8: ...ansducer should always be connected to the RED socket and the downstream transducer to the BLUE one for a positive flow reading It is safe to connect or disconnect the cable while the instrument is switched on 4 to 20 mA and Pulse output connection The 4 to 20mA pulse output cable should be connected to the green 7 pin connector on the top of the flowmeter as shown in Figure 1 3 A single cable tha...

Страница 9: ...by pressing the ENTER SELECT key Some menus have more options than can be shown on the screen at the same time in which case the overflowed choices can be brought into view by continuing to scroll DOWN beyond the bottom visible item Menus generally loop around if you scroll beyond the first or last items If you select Exit on any menu it usually takes you back up one level in the menu hierarchy bu...

Страница 10: ...perating in the Flow Reading mode the percentage battery charge level is displayed symbolically on the LCD screen A warning message is triggered if the charge falls to approximately 30 at which point there is up to four hours of battery operation remaining depending on usage The battery can be charged both while the instrument is in use or when switched off The instrument s internal data is stored...

Страница 11: ... can be unpredictable Key Point Do not expect to obtain accurate results if the transducers are positioned close to any obstructions that distort the uniformity of the flow profile Flow Valid transducer location 10 x Diameter 20 x Diameter 45 The PUB equipment expects a uniform flow profile as a distorted flow will produce unpredictable measurement errors Flow profile distortions can result from u...

Страница 12: ...greasing it and removing any loose material or flaking paint in order to obtain the best possible surface A smooth contact between pipe surface and the face of the transducers is an important factor in achieving a good ultrasound signal strength and therefore maximum accuracy 2 2 2 Attaching the transducer holders Figure 2 2 Transducer holder attachment 1 Slide the separation bar D into the front ...

Страница 13: ...lder assembly to allow sufficient access to fit the transducer 2 Clean the face of the transducer removing all traces of dirt and grease 3 Apply a 1 10 inch bead of ultrasonic couplant along the center length of the transducer E 4 Fit the transducer into the holder ensuring the lugs on the sides of the transducer are correctly located into the slots on the sides of the guide block B 5 Slide the tr...

Страница 14: ...aph 3 5 2 How to adjust the Calibration Factor Paragraph 3 5 3 How to adjust the Roughness Factor Paragraph 3 5 4 How to adjust the Damping Factor Paragraph 3 5 5 Set up a monitoring application Paragraph 3 6 How to measure totalized flows Paragraph 3 6 1 Configure the interfaces Paragraph 3 7 Battery charging Set date time Language Backlight Initial instrument setup Paragraph 3 1 Connect and take...

Страница 15: ... should indicate CHARGING and an animated battery symbol indicates that the battery is taking on charge 3 Leave the instrument on charge for 6 5 hours before using it for the first time CHARGING DD MM YY HH MM SS 3 The selected language will be the default when the instrument is next used To change the language again select the Change Language option in the SETUP INSTRUMENT screen see below 4 The ...

Страница 16: ...ime and press the ENTER key 3 A flashing cursor should appear under the first date number Enter the date sequence in dd mm yy order then press the ENTER key 4 Repeat this action to set the time 5 Select Exit then press the ENTER key to return to the MAIN MENU SETUP INSTRUMENT DD MM YY HH MM SS Qxx xx Set Date Time dd mm yy hh mm ss Calibrate 4 20mA Pulse status Backlight Disabled Factory settings ...

Страница 17: ...ata 1 Select Quick Start from the MAIN MENU and press the ENTER key You will then be presented with a series of screens in which to enter the data mentioned above 2 Select the dimension units millimeters or inches used to measure the pipe then press the ENTER key DIMENSION UNIT DD MM YY HH MM SS Select the dimension units mm Inches 3 Enter the pipe outside diameter dimension then press the ENTER k...

Страница 18: ...e material is not listed select Other and enter the propagation rate of the lining material in meters sec Contact Dwyer if this is not known PIPE LINING MATERIAL DD MM YY HH MM SS Select pipe lining material Steel Rubber Glass Epoxy Concrete Other m s 10 Select the fluid type from the list provided and press the ENTER key If the liquid is not listed select Other and enter a propagation rate in met...

Страница 19: ... Take a note of the displayed parameters then press the ENTER key 17 The ATTACH SENSORS screen displays giving instructions to attach the sensors SENSOR SEPARATION DD MM YY HH MM SS Site Quickstart Pipe 0 40 Inches Wall 0 20 Inches Sensors A ST Reflex Temperature 5 00 C 41 00 F Set sensor separation to 1 7 Inches Press to continue UV to select sens ATTACH SENSORS DD MM YY HH MM SS Attach Sensor Se...

Страница 20: ...elect View Edit Site Data from the MAIN MENU 2 Select Choose from list of sites 3 Select one of the sites listed and press the ENTER key 4 The Site name will show the selected site and the site parameters will be listed on the screen 5 Scroll down through the menu list and enter change any data that might have changed since the last time the site was accessed 6 When you are satisfied that the para...

Страница 21: ... informs you of the type of sensor to be used the mode of operation and the distance to set up between the sensors In this example it recommends type A ST A standard sensors operating in the Reflex mode spaced 1 7 inches apart SENSOR SEPARATION DD MM YY HH MM SS Site MySite Pipe 4 00 Inches Wall 0 20 Sensors A ST Reflex Temperature 5 00 C 41 00 F Set sensor separation to 1 7 Inches Press to contin...

Страница 22: ...ning thickness 0 16 5 This opens the ALTER NAME screen 6 Select Alter the Site Name and you will be presented with a screen which allows you to enter a new name in much the same way as when composing a mobile text message 7 On completion press the ENTER key then select Exit This will take you back to the VIEW EDIT SITE DATA screen ALTER NAME DD MM YY HH MM SS Site name EmptySite1 Do you wish to Al...

Страница 23: ...ransducers in either direction A Set zero flow offset adjustment is provided to compensate for any inherent differences between the two sensors noise pick up internal pipe conditions etc It can be used to zero the flow indication under no flow conditions 1 Stop the liquid flow 2 With the instrument in FLOW READING mode press the Velocity function key and observe the reading m s Any reading other t...

Страница 24: ... key to return to the FLOW READING screen FLOW READING OPTION DD MM YY HH MM SS Data review Zero Cutoff m s 0 00 Set zero flow m s 0 00 Damping secs 10 Totalizer Run Reset Total Key Point In order to cancel any applied offset you must either read the flow via Quick Start or switch the PUB instrument OFF ON Any value that you trim out using the offset adjustment will be added subtracted from the fl...

Страница 25: ...For example if the PUB was reading 1 high then increase the Calibration factor value by 0 010 Conversely if the reading is 1 low then decrease the calibration factor to 0 990 7 Press the ENTER key to apply the change 8 Select Roughness factor or Exit as required FLOW READING OPTION DD MM YY HH MM SS Data review Zero Cutoff m s 0 00 Set zero flow m s 0 00 Damping secs 10 Totalizer Run Reset Total R...

Страница 26: ...10 Totalizer Run Reset Total Reset Total Calibration factor 1 000 Roughness factor 0 01 Diagnostics Exit 1 Press the Options key to access the FLOW READING OPTION screen shown 2 Scroll down and select Damping secs 3 This will open the DAMPING OPTIONS screen FLOW READING OPTION DD MM YY HH MM SS Data review Zero Cutoff m s 0 00 Set zero flow m s 0 00 Damping secs 10 Totalizer Run Reset Total Reset ...

Страница 27: ...select it and change it to Stall then press the ENTER key 3 Select Reset Total and press the ENTER key 4 Press the ENTER key on the subsequent screen to accept the reset 5 Press the ENTER key again to return to the FLOW READING OPTIONS menu FLOW READING OPTION DD MM YY HH MM SS Data review Zero Cutoff m s 0 00 Set zero flow m s 0 00 Damping secs 10 Totalizer Stall Reset Total 6 Select Reset Total ...

Страница 28: ...g the 4 to 20 mA output OFF ON 4 to 20 mA signal calibration and ranging This procedure describes how to calibrate the 4 to 20 mA output and scale it to operate over a defined flow rate range 1 With the instrument operating in the FLOW READING mode press the 4 20mA function key This will access the 4 20mA OUTPUT screen 2 The ON OFF status of the 4 20mA output is shown on line 2 of the display 3 To...

Страница 29: ...fine until the output is exactly 4 0 mA The DAC should indicate approximately 8000 4 Press the ENTER key when done CALIBRATE 4mA DD MM YY HH MM SS Qxx xx Adjust the output current to 4mA Use UV to set 5 6 to trim DAC Value 8000 Press when done 5 With the meter still connected to the 4 to 20 mA output adjust the Scroll keys to obtain an output of exactly 20 mA The DAC should indicate approximately ...

Страница 30: ...onding maximum flow rate Turning the pulse output OFF ON volumetric mode Generating a Test pulse If the PULSE OUTPUT menu screen is accessed from the SETUP INSTRUMENT menu you can generate a test pulse by selecting Flow units and pressing the Option key 0 20 mA 0 16 mA 4 20 mA 1 With the instrument operating in the FLOW READING mode press the Pulse function key to access the PULSE OUTPUT screen 2 ...

Страница 31: ...een and select the required units using keys 7 8 and 9 PULSE OUTPUT DD MM YY HH MM SS Pulse output is ON Qxx xx Flow units gal Output On Vol per pulse 10 00 Pulse width ms 10 Max Pulse Freq Hz 10 00 Flow at Max Freq 200 00 3 Select Vol per pulse and enter the required value In the example shown a 10 ms pulse is produced for every 10 gallons of flow Calculated Pulse Value 20 0 Exit 1 With the instr...

Страница 32: ...ating in the FLOW READING mode press the Pulse function key to access the PULSE OUTPUT screen 2 Select Max Pulse Freq Hz and enter the required value 3 Select Flow at Max Freq and enter the required value gal min 4 Select Exit and press the ENTER key to return to the FLOW READING screen PULSE OUTPUT DD MM YY HH MM SS A1 Pulse Frequency is ON Qxx xx Flow units gal Output Frequency Vol per pulse 10 ...

Страница 33: ...nd that the ultrasonic couplant is replaced on the sensors every 6 months especially on pipes where the application is too hot to touch If the signal level drops below 30 this is also an indication that the sensors need re greasing 6 Regularly check all cables parts for damage Replacement parts are available from Dwyer 7 Ensure the person who services your instrument is qualified to do so If in do...

Страница 34: ...g good surface contact with the transducer Flaking paint should be removed Variable air gap in concrete covered pipes affecting the ultrasonic signal quality Poor internal pipe construction Rough internal pipe walls affecting fluid flow see roughness factor Internal welds positioned in the transducer signal path affecting the signal quality The drippings in galvanized dipped pipes or other irregul...

Страница 35: ...ably due to non constant fluid flow Check the following the pipe data has been entered correctly the fluid type has been entered correctly the correct transducer type has been selected the pipe diameter is within specifications of the selected transducers the pipe is completely full the pipe surface is not corroded or protective surface loose no particles in the fluid Ensure the temperature is set...

Страница 36: ...u Response Enter a valid number Totalizer beyond maximum Interpretation The totalizer has overflowed its maximum count The counter will roll over and restart from zero but this message alerts you to the fact Response Reset the totalizer as described on page 23 PULSE ERRORS Pulse Rate Max Interpretation The flow rate exceeds the capability of the pulse output i e too many pulses per second are requ...

Страница 37: ... 20 mA output see page 24 SET UP ERRORS Pipe OD out of range Interpretation You have entered an out of range value for the pipe outside diameter dimension i e larger or smaller than the unit or sensor can be used on Response Enter a valid number Wall thickness out of range Interpretation You have entered an out of range value for the pipe wall thickness dimension accepted range is 0 4 to 3 inches ...

Страница 38: ...id and the mode cannot be verified Response Select a mode that gives a non zero separation distance BATTERY ERRORS Battery Low Interpretation The battery has discharged to below 30 remaining This leaves the instrument with approximately 4 hours remaining depending on power usage before it needs recharging Response Recharge the internal battery at the earliest opportunity Do not leave the instrumen...

Страница 39: ...located in the right hand side of the instrument to operate the internal reset switch Hold the paperclip perpendicular to the instrument while doing this 5 6 Diagnostics Display This feature is designed for advanced users and is intended to provide information that will aid the user to diagnose problems e g no signal strength When operating in the FLOW READING mode you can access a diagnostics scr...

Страница 40: ...e should be None A Switch value of 100 indicates poor sensor set up or poor connections UP DN time difference The difference in transit times between the upstream and downstream signals due to the fluid flow Fluid propagation rate This is the sound speed of the fluid calculated using the data entered by the user Sensor separation The same value as displayed in the setup screen ...

Страница 41: ...l min gal h USgals min USgals h Barrel h Barrel day m s m min m h Selectable Volume Units L gal USgals Barrel m Total Volume 12 Digits forward and reverse APPLICABLE FLUID TYPES Fluid Condition Clean liquids or oils that have less than 3 by volume of particulate content Applications include river water sea water potable water demineralized water glycol water mix hydraulic systems and diesel oil AP...

Страница 42: ...TL Max Current Volumetric mode Pulse Repetition Rate Frequency mode Max Pulse Frequency Flow at Max Frequency Opto isolated MOSFET relay 150 mA Up to 500 pulses sec depending on pulse width 500 ms for 1 pulse sec 5 ms for 100 pulses sec 200 Hz 9999 gals min ELECTRICAL Supply Voltage Input Voltage Range 9 to 24 Vdc Power Consumption 10 5 W Battery Technology 5 cell NiMH Capacity 3 8 AHr Operating T...

Страница 43: ...raphic display high contrast black on white with backlight Viewing Angle Min 30 typically 40 ENVIRONMENTAL Operating Temperature 4 F to 125 F 20 C to 50 C Storage Temperature 13 F to 150 F 25 C to 149 C Operating Humidity 90 RH MAX at 122 F Charging Temperature 32 F to 104 F 0 C to 40 C APPROVALS Safety BS EN 61010 EMC BS EN 61326 1 2006 BS EN 61326 2 3 2006 Battery Charger EN61204 3 SHIPPING INFO...

Страница 44: ...ation 40 Copyright 2012 Dwyer Instruments Inc Printed in USA 9 12 DWYER INSTRUMENTS INC P O BOX 373 MICHIGAN CITY INDIANA 46360 USA Phone 219 879 8000 www dwyer inst com Fax 219 872 9057 email info dwyer inst com ...

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