HyQuest Solutions PVD100 Operating Manual

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HyQuest Solutions Pty Ltd

OPERATING MANUAL

PVD100

Current Meter Counter

QUALITY

SYSTEM

ISO: 9001

CERTIFIED

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@hyquestsolutions.com.au

Web:

www.hyquestsolutions.com.au

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Page 1 HyQuest Solutions Pty Ltd OPERATING MANUAL PVD100 Current Meter Counter QUALITY SYSTEM ISO: 9001 CERTIFIED 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@hyquestsolutions.com.au Web:...
Page 2: Table Of Contents
Appendix A Capturing a Spin Test ............... 35 Appendix B Measuring Meter Dwell ............40 Appendix C Serial Port Echo Command ............. 41 Appendix D Example Calibration Certificate ..........42 Point Velocity Display - Model PVD100 Issue 1.00 4 Apr, 2007 © Copyright...
Page 3: Introduction
A superior feature of the PVD100 is its ability to "clean" the signal and interface directly to a PDA, PocketPC, or other computing device and provide serial data that can be used by the external device to compute discharge.
Page 4: Overview
A very important feature of the PVD100 is the ability to detect a signal short during a measurement. If such a condition is detected, the ‘*’ symbol is displayed until the fault condition is removed.
Page 5: Installation
Field Effect Transistor (FET) that will act like a switch. The signal is processed by the PVD100. To verify operation of this signal with other equipment, use the Comms Test function which simulates a contact closure and operates this output.
Page 6: Operation
Description of Controls 4.1.1 Pushbuttons The PVD100 has three front panel buttons that are used to turn power On and Off, view menus, and choose operating settings. The buttons are labeled as follows: ON/OFF – This button is the far left button on the front panel and is used to turn power On and Off on the PVD100.
Page 7: Indicator Leds
HyQuest Solutions Pty Ltd 4.1.2 Indicator LEDs The PVD100 provides two LED indicators to show the unit is operating and to indicate current meter contact closures. Both indicators also show cable faults and other operating conditions of the PVD100. The following is a brief description for each indicator.
Page 8: The Main Display
300 seconds. The maximum displayed number is 999, however the PVD100 will ‘roll-over’ to ‘0’ and continue to count until a meter contact closure is detected. To terminate the measurement upon the next meter contact closure, depress the ‘SELECT’...
Page 10 0 = Continuous X. XX f 40 N XXX.XX * N = Normal Speed Blank = OK S = Slow Speed * = Fault Detected Elapsed Time in Seconds Point Velocity Display - Model PVD100 Issue 1.00 4 Apr, 2007 © Copyright...
Page 11: The Menus
4.3.1 Special 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 of appearance within the menu list. Refer to Section 4.4.4 below for the details of operating these functions using the serial communications interface.
Page 12: Magnetic Head / Cat Whisker
FUNCTION to step to the next menu item. One of the most important operating features of the PVD100 is the ability to signal process each contact closure. Contact closures from any type of meter are inherently noisy causing miscounting or double counting.
Page 13: Measurement Time
® standard (IEEE 802.14) that offers a transparent serial port 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 turned ®...
Page 14: Calibrate
When the fault is cleared, the indicators will reflect their fault-free operating condition. Finally, it may be necessary to recalibrate the PVD100 in areas where the water has a high conductivity. Use this function when the meter and wading rod or meter mounting are completely in the water.
Page 15: Comms Test
4.3.10 Comms Test The ‘Serial Port Test’ function, called ‘COMTEST’ in the menu, provides a way to test the setup of the serial communications interface between the PVD100 and an external device connected (cabled or wireless) to the PVD100. Set the external device’s communication port as follows :...
Page 16: Dwell Measurement
MAG. Again, select the type of meter contact head before selecting this function to measure the dwell angle of the meter. 8. To exit from this function, simply depress the ‘ON/OFF’ button. Point Velocity Display - Model PVD100 Issue 1.00 4 Apr, 2007 © Copyright...
Page 17: Spin Test
2. From the opening display presentation as shown above, depress the ‘SELECT’ button. 3. Spin the meter. When the PVD100 detects 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 display shows the continuing elapsed time in seconds.
Page 18: Battery Condition
For battery conditions, the PVD100 continuously monitors the power level of the batteries. In the event a low battery condition is detected, the PVD100 turns On both the red and green LED on the STATUS indicator to inform the operator. The menu function showing the battery condition is also messaged to show a low battery condition.
Page 19: Meter Selection
There are two meters that may be selected and they are designated by the PVD100 as ‘A’ and ‘B’. The ratings for the two meters must have already been entered using the special serial communications program designated ‘User Serial Interface Program’...
Page 20: Software Version
4.3.15 Software Version Use the FUNCTION button to select this menu and view the PVD100 Software Version. V 2.5  Point Velocity Display - Model PVD100 Issue 1.00 4 Apr, 2007 © Copyright...
Page 21: Serial Communications Interface
HyQuest Solutions Pty Ltd Serial Communications Interface The PVD100 can be connected to a hand-held or notebook computer or any device that can transmit and receive serial communications using RS-232C or Bluetooth using an ® application such as HyperTerm. Commands can be sent to the PVD100 to perform special functions or select operating modes.
Page 22 If there is no contact closure detected when the measurement interval has been reached, the PVD100 will continue to send data and the user must send the ‘I’ command to abort the function. Note that the meter contact number, nn, is limited to a total of 255 counts (hexadecimal notation ‘FF’).
Page 23: Data Conversion Example
4.4.1 Data Conversion Example The data format of the PVD100 is transmitted in HEX ASCII (base 16 numbers using the ASCII code which is displayable on any terminal) to provide efficiency in the number of data characters sent through the serial interface. Following is an example of the interpretation of the data.
Page 24 HyQuest Solutions Pty Ltd Data Format Notes The data format presented by the PVD100 during a measurement provides for displaying a computed velocity by an external device at a 1-second rate. The accumulating contact closure counts and time interval counts can be used in a rating equation to display velocity.
Page 25: The User Serial Interface Program
The User Serial Interface Program allows the user to input the rating(s) for a current meter. The user connects the PVD100 to a laptop, desktop, PocketPC, or other type of field computing device having a terminal emulator software program (such as HyperTerm) for communication.
Page 26 HyQuest Solutions Pty Ltd the user. This is what the PVD100 uses to distinguish between the two meters. The user enters any characters and numbers for the Serial Number. Up to seven alphanumeric, numeric, and special characters all can be used to give a serial number for the meter.
Page 27 ‘A’ or to request a Summary. Note: Incorrect or unreasonable entries can give unexpected results for velocity calculations. Be sure to provide the proper entries for these ratings. Point Velocity Display - Model PVD100 Issue 1.00 4 Apr, 2007 © Copyright...
Page 28 ‘ESC’. Entering <CR> or ‘ESC’ causes the program to end. Entering any character or the ‘space bar’ will move to display the Serial Numbers of both meters and make a selection as shown in Step 2 above. Point Velocity Display - Model PVD100 Issue 1.00 4 Apr, 2007 © Copyright...
Page 29: Quick-Step Procedure For The User Serial Interface Program
2 for Number of Equations then 1: 2.2048[n]+0.0178 2: 0.50 < n < 3.75 if the user enters 3 for Number of Equations Point Velocity Display - Model PVD100 Issue 1.00 4 Apr, 2007 © Copyright...
Page 30 Step 7: USIP response: ---------------------------- 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]-0.2345 ---------------------------- B=S/N 2000-00 1 Rating 0.1234[n]+0.0123 ---------------------------- Point Velocity Display - Model PVD100 Issue 1.00 4 Apr, 2007 © Copyright...
Page 31: Operating The Special Functions Using Serial Communications
® ’s HyperTerminal can be used to invoke the function. No menu 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.
Page 32: Changing The Batteries
“O” ring seal between the two case halves, which prevents the ingress of water and is rated to IP65. There are no user serviceable parts inside the PVD100. If the unit does not function properly, the unit must be returned to HyQuest Solutions for component repair.
Page 33: Specifications
- CatW 0.021m/s(0.07ft/s)@ 10 to 170 dwell Pygmy meter - CatW 0.012m/s(0.04ft/s)@ 10 to 90 dwell Maximum Conductivity > 50,000 Siemens (max velocity ranges must be derated 20%) µ Point Velocity Display - Model PVD100 Issue 1.00 4 Apr, 2007 © Copyright...
Page 34 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. Point Velocity Display - Model PVD100 Issue 1.00 4 Apr, 2007 © Copyright...
Page 35: Appendix A Capturing A Spin Test
(ASCII ‘0A’) At the 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 of counts and total elapse time information onto a form.
Page 36 4. When the meter is spun, the OPERATING STATUS indicator will blink when a contact closure is detected. 5. The PVD100 will output through the serial port a character string (as described Point Velocity Display - Model PVD100 Issue 1.00 4 Apr, 2007...
Page 37 Click “Stop”. The file will be saved under the file name given. The file can be opened using Windows “NotePad” or “WordPad” and can be easily imported into Excel for analysis. To better align the data being displayed, the PVD100 will respond to the Carriage Return key, . Entering a...
Page 38 13. Click ‘Finish’, and then click ‘OK’ to import data into the existing worksheet. 14. Save the workbook under a file name. 15. Shown below is an example of an imported ‘Spin Test’ file. Point Velocity Display - Model PVD100 Issue 1.00 4 Apr, 2007 © Copyright...
Page 39 Total Number of Meter Counts = 163 Total Spin Time = 119.3 seconds 96 101 106 111 116 121 126 131 136 141 146 151 156 161 166 Point Velocity Display - Model PVD100 Issue 1.00 4 Apr, 2007 © Copyright...
Page 40: Appendix B Measuring Meter Dwell
The contact time and total time shown above in the formula are expressed in terms of the number of samples measured at a sample rate of 1200 Hz as it is measured by the PVD100. A high sample rate is used to reflect a more accurate measure of the contact time and total time measured.
Page 41: Appendix C Serial Port Echo Command
HyQuest Solutions Pty Ltd Appendix C Serial Port Echo Command The PVD100 has a special serial port character echo command that can be used to echo characters or short strings appearing through the serial port. The command can be used to ‘see’...
Page 42: Appendix D Example Calibration Certificate
| whenever their performance is suspect. In practice for | individually rated meters, recalibration is sometimes | carried out at yearly intervals or after 300 hours of use, | whichever is the shorter. |_____________________________________________________________| D127.08.00 Point Velocity Display - Model PVD100 Issue 1.00 4 Apr, 2007 © Copyright...