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HyQuest Solutions Pty Ltd

 

Point Velocity Display - Model PVD100 
© 

Copyright 

   

34

 

 

 

 

Issue 1.00   4 Apr, 2007 

Specifications…  

(continued) 

 
Contact time to Fault Detection (

absolute maximum

(Normal Mode) 

 

Magnetic Head Contact 

11 Seconds 

    Cat 

Whisker 

Head 

Contact 

Seconds 

 
(Slow speed Mode)   

Magnetic Head Contact 

30 Seconds 

    Cat 

Whisker 

Head 

Contact 

20 

Seconds 

 
Minimum dwell angle for  

10

o

 

Cat Whisker Head 
 
Signal Output driver pulse 

Normal mode :  100mS, active high to low pulse 

(FET open drain O/P)  

Slow mode     :  1 Sec, active high to low pulse 

(Fixed width) 

 

 (1) 

NOTES: a)  Measurements and Computations based on the following Rating Table 

Equations. 

 
 

Price AA Meter:  V=2.2048  +0.0178            where:   V= Velocity 

  

 

   

  

Seconds/rotation 

 
 

   Pygmy Meter:   V=0.9604  +0.0312 

 

   

 

 

 

   

 

 

b)  Measurements made with 0 microSiemens conductivity, open air, ambient 

room temperature.

 

 

 
User Serial Interface Program 
 
 

Example:   2.3456[n]+0.1234       where:  n=number of rotations/second 

 

     

   

 First Term:

    2.3456 

 

     

Second Term: 

   0.1234 

 

 

   

 First Term Entry:

 Maximum Allowable:  6.5535 

 

Second Term Entry:

 Maximum Allowable:  0.9999 

 

       

   Range Values:

 Maximum Allowable:  9.99 

 
 

Note:

  Incorrect or unreasonable entries can give unexpected results. 

Summary of Contents for PVD100

Page 1: ...9001 CERTIFIED OPERATING MANUAL PVD100 Current Meter Counter HYQUEST SOLUTIONS PTY LTD 48 50 Scrivener St Warwick Farm NSW 2170 AUSTRALIA Phone 61 2 9601 2022 Fax 61 2 9602 6971 Email sales hyquestso...

Page 2: ...asurement Time 13 4 3 8 Bluetooth Communications 13 4 3 9 Calibrate 14 4 3 10 Comms Test 15 4 3 11 Dwell Measurement 16 4 3 12 Spin Test 17 4 3 13 Battery Condition 18 4 3 14 Meter Selection 19 4 3 15...

Page 3: ...c to more than 6 1 m sec for a Price AA meter The PVD100 also provides a slow speed mode to improve measurements with extremely slow rotating current meters velocities less than 0 076 m sec The PVD100...

Page 4: ...nce cat whisker contacts offer the poorest quality for marking and counting rotations The PVD100 offers 2 modes of operation i e NORMAL and SLOW speed mode NORMAL is selected for meter rotations 0 076...

Page 5: ...in 9 provides an interface to other instruments that may use a current meter to perform velocity or flow measurements Examples include the JBS Instruments AquaCalc and Sutron s DMX Discharge Measureme...

Page 6: ...lly shut off after 5 minutes of no activity i e no meter contact closures no serial port activity no button presses and Bluetooth switched off or in Discover mode SELECT This center located button is...

Page 7: ...s selected The operating default power up setting is Magnetic Head The indicator also shows the operating mode If the indicator is not blinking then the operating mode is Normal If the indicator is bl...

Page 8: ...cant number position will begin to show special characters such as or etc These characters indicate to the operator that a rollover count of 999 has occurred This display position shows the total elap...

Page 9: ...n to stop the measurement at the next meter contact closure or the ON OFF button to simply stop and end the measurement This display position shows the indication of a current meter fault When the ind...

Page 10: ...ay will show velocity to two decimal places while if the selection is set to METERS the display will show velocity to three decimal places Trick if you want to get more resolution in the display of fe...

Page 11: ...ial Operating Functions Within the PVD100 are special operating functions that offer tools for adjusting the current meter and measuring its performance These special functions are described in order...

Page 12: ...r contacts offer the poorest quality for marking and counting rotations 4 3 5 Normal Slow Use the FUNCTION button to select this menu then press SELECT to toggle between Normal or Slow Press ON OFF to...

Page 13: ...protocol for communication Since the PVD100 can output data and be controlled using the RS 232 serial interface the physical cable connection can be eliminated using Bluetooth When the PVD100 is turne...

Page 14: ...en The PVD100 will not automatically power down when Bluetooth is enabled and connected If Bluetooth is On or connected when the PVD100 is manually powered Off the PVD100 will go directly into DISCOVE...

Page 15: ...an alternate ASCII character string This alternate character string represents the data string format that would normally be sent through the serial interface when making a current meter measurement T...

Page 16: ...ontact head i e magnetic head or cat whisker head contact This is done from a different menu 2 After selecting the type of meter contact head when the DWELL measurement function is enabled the opening...

Page 17: ...the first contact closure which is not counted the elapsed time counts begins Each following contact closure detected is counted and shown on the top line of the display The bottom line of the displa...

Page 18: ...e STATUS indicator is turned On at a lower indication level to inform the operator that the PVD100 will not turn On until the batteries are changed This prevents poor operation from a low battery cond...

Page 19: ...erial number and rating s To select a meter for the final velocity calculation use the Select button to bring the serial number into view then press ON OFF to return to the main display or press FUNCT...

Page 20: ...meter B Press ON OFF to return to the main display or press FUNCTION to step to the next menu item In this display setting the computation of velocity for the real time display will use the first rat...

Page 21: ...interface Command Function Performed S Start a measurement T Terminate the measurement I Abort the measurement R Resend the last data string U Buzzer ON Z Buzzer OFF H Speed Select set to Normal L Sp...

Page 22: ...apsed time and velocity while the measurement is being performed At the end of the measurement interval or if the T command is received the PVD100 sends the last tally of accumulated counts and time i...

Page 23: ...data display without a time limit The T or I command must be used to terminate the operation V The software version of the PVD100 is sent in the following manner vX X Example v1 0 4 4 1 Data Conversio...

Page 24: ...d interval time is then used to compute the measured velocity For the Normal mode the 1 second output data format displays the accumulating time interval counts based on a 300 Hz sample rate The follo...

Page 25: ...measurement To exit anytime from the User Serial Interface Program use the Esc key Step 1 Connect the PVD100 using the serial communications cable or Bluetooth connection If a Bluetooth connection is...

Page 26: ...ons for the rating If the meter has been calibrated the calibration certificate will show the number of equations that describe the full rating for the meter Refer to Appendix D for an example of a ca...

Page 27: ...onse to the Number of Equations entry For data entry position and control the following keys can be used The Space bar key moves the cursor position forward without changing the number The Backspace k...

Page 28: ...g S will show the following results numbers shown are arbitrary and are for example A S N 1000 00 3 Ratings Range 1 n 1 23 2 3456 n 0 2345 Range 2 1 23 n 4 56 1 2345 n 0 1234 Range 3 n 4 56 2 3456 n 0...

Page 29: ...e A S N 1000 00 if the user enters A or B S N 2000 00 if the user enters B Step 3 Edit the Serial Number then enter CR Carriage Return USIP response NUMBER OF EQUATIONS 3 Step 4 Enter 1 2 or 3 USIP re...

Page 30: ...press CR USIP response 2 2 2048 n 0 0178 if the user enters 2 or 3 for Number of Equations or 3 0 9604 n 0 0312 if the user enters 3 for Number of Equations Step 6 Edit the final equation then press...

Page 31: ...selections in the PVD100 are needed The selection of the meter type and turning the buzzer On and Off can all be done using the serial communications interface These functions can also operate using B...

Page 32: ...this causes the PVD100 to power up with Factory Defaults If this occurs simply remove the batteries while the unit is On then replace the batteries All previous settings should be restored Please Not...

Page 33: ...Velocity Flow absolute maximum 1 Normal Mode Price AA meter Mag 13 7m s 45 ft s 99o to 204o dwell CatW 6 7m s 22 ft s 10o to 62o dwell Pygmy meter CatW 2 8m s 9 4ft s 10o to 62o dwell Slow speed mode...

Page 34: ...open drain O P Slow mode 1 Sec active high to low pulse Fixed width 1 NOTES a Measurements and Computations based on the following Rating Table Equations Price AA Meter V 2 2048 0 0178 where V Veloci...

Page 35: ...end of the spin test the PVD100 sends a final data string that displays the total number of counts and total time all shown in decimal notation This format makes it easy to copy the final total number...

Page 36: ...seconds to the total number displayed 3 The maximum number of measured meter contact closures clicks is 999 If the accumulating contact closures continues beyond the maximum data form the count rolls...

Page 37: ...he Accessories folder listed in the Programs list on the desktop Within HyperTerminal and before spinning the meter select Capture Text found in the Windows label Transfer tab When the Capture Text ta...

Page 38: ...ick Do not import column skip in the Column data format window This will show Skip in the column 1 heading 11 Click on column 3 where the Time data is shown in HEX ASCII and change in the Column data...

Page 39: ...the response of a current meter created from data in a Spin Test file Spin Test for Meter 1234567 0 10 20 30 40 50 60 70 80 90 100 110 120 130 1 6 11 16 21 26 31 36 41 46 51 56 61 66 71 76 81 86 91 9...

Page 40: ...the following simple formula Dwell Angle Contact time x 360 Total Time The contact time and total time shown above in the formula are expressed in terms of the number of samples measured at a sample r...

Page 41: ...s key row and is the left most character key in the row The character is a shift key character and the shift key must be used to send the character This echo character command acts like a switch which...

Page 42: ...in meters per second Date 27 4 06 INSPECTED __________________ _____________________________________________________________ The above meter has been calibrated in accordance with AS 3778 6 3 1992 Thi...

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