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PrimeLog

PrimeLog User Manual

12

1.5 Interfacing

1.5.1 Quadrina Insertion Meters

Quadrina insertion meters are probes which are inserted, usually on a temporary basis, into
mains supply pipes, and which measure the local velocity.

1.5.1.1

The Quadrina range

Probes are supplied in two sizes: standard (Probeflo) and miniature (Miniprobe). Each is
available for unidirectional or bi-directional flow. As two options are available for the insertion
tube, there are eight hardware variants. Any variant may be fitted with the MEP or QEP
electronic interface.

The QEP interface requires no power from the logger and so is compatible with all PrimeLog
instruments. Its pulse frequency is linear against velocity

The MEP interface normally requires power from the logger. The PrimeLog submersible
range requires an Auxiliary Battery Unit to be used. The MEP output pulse frequency is non-
linear.

If the MEP interface has been specified to be powered internally, PrimeLogs can be
interfaced directly without auxiliary batteries.

1.5.1.2

Volumetric flow measurement

Volumetric flow must be calculated from the measurement of velocity at one point in this flow.
It is common practice (which will be assumed here) for the measurement point to be set on
the centreline of the pipe, and to assume that flow is symmetrical about this point. There is
the additional complication that the probe forms an obstruction to the flow (blockage factor).

Happily, these problems are minimised by the probe manufacturer, who supplies tables (F
factors) which give the ratio of mean velocity to (measured) centreline velocity allowing for the
blockage of the probe in common sizes of pipe.

1.5.1.3 Probe

calibration

Each probe is supplied with a calibration certificate showing the number of pulses produced
per metre of flow. (If this value seems peculiar, consider “...number of pulses produced per
second for each metre per second of flow rate...” - the two figures are identical).

Probes fitted with QEP interfaces have a single-point calibration. For the non-linear MEP
interfaces, calibration figures are supplied for several different velocities. From these values a
mean factor is also calculated, which is convenient to use but which does introduce some
error.

1.5.1.4 Logger

Configuration

When the option

Quadrina Insertion Probe

is selected from the PrimeWare flowmeter menu,

the following information is required:

Probeflo (default) or Miniprobe
Unidirectional (default) or bi-directional
Standard (0.5”) or oversize (0.75”) insertion tube
Pipe diameter
MEP or QEP electronic interface

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Содержание PrimeLog

Страница 1: ...ser Manual Issue 6 1 Mai 2003 Primayer Limited Primayer House Parklands Business Park Denmead Hampshire PO7 6XP Telephone 44 0 23 9225 2228 Fax 44 0 23 9225 2235 Website www primayer com Email sales primayer com ...

Страница 2: ...Office Primayer France 1 rue Louis Juttet 69410 CHAMPAGNE AU MONT D OR France Telephone 33 0 4 72 19 10 62 Fax 33 0 4 72 17 70 54 Email primayer tiscali fr Primayer Limited reserves the right to amend any specification without notice Primayer Limited will not be responsible for any consequential damages arising from such changes or from errors contained in any publication Copyright Primayer Limite...

Страница 3: ...tion and Use 11 1 5 1 Logger Set Up 11 1 5 2 Logger Use 11 1 6 Interfacing 12 1 6 1 Quadrina Insertion Meters 12 1 6 1 1 The Quadrina range 12 1 6 1 2 Volumetric flow measurement 12 1 6 1 3 Probe calibration 12 1 6 1 4 Logger Configuration 12 1 6 2 Other Flowmeters 13 2 Appendices 14 2 1 Appendix 1 Meter Scaling Tables 14 2 1 1 Kent Domestic Helix Master Meters 14 2 1 2 Schlumberger Domestic Helix...

Страница 4: ...Table of Contents PrimeLog User Manual Index 22 ...

Страница 5: ...ional flow channels 1 1 1 2 2 Number of analogue channels for transducer voltage or current input 1 1 2 Number of internal pressure channels 1 1 2 Pressure analogue channel accuracy 0 1 0 5 or 0 1 0 1 0 1 0 1 0 1 1 1 2 Main features Single to four channel models Submersible to IP68 Powered for five years see note below Extremely robust Fits in small locations Maintainable can be disassembled Pleas...

Страница 6: ...y options to 0 1 meets WRC code of practice for network analysis 1 1 5 Special features One logger accepts many analogue inputs pressure and depth sensors 4 20mA voltage various ranges Loggers power Kent HRP PU100 pulse units directly Logger stores Quadrina calibration data internally 10 point calibration Velocity profile and blockage factor Table of Logger Types Submersible 1F 1FM 1P 1PM 2i 2iM 2...

Страница 7: ...e with an internal pressure transducer The range of loggers and the facilities provided by each type are shown in the tables in the previous section and are described in more detail below All loggers are fitted with military grade connectors and are sealed to IP68 Loggers are optionally available with an integral PSTN modem for remote programming and data collection PrimeLog Model 2 Local communic...

Страница 8: ...t containing 6 C size alkaline cells is available to supply additional power to digital sensors with heavy current demands When such a sensor is selected for a logger using Logger Setup and the Digital tab options see the PrimeLog Menu section of the PrimeWare manual a warning message is displayed to advise the user of the need to use the unit The disposable pack is fully encapsulated to meet IP68...

Страница 9: ...Auxiliary Battery Communications adaptor If it is necessary that logging continues during communication periods an adaptor is available which allows the battery pack to be connected continuously whilst providing access to the comms connector ...

Страница 10: ...ir connectors identified by logos which are shown against the appropriate input below IMPORTANT Due to the operational requirements of depth transducers it is essential that the connector is never immersed in or exposed to water The vent tube from the transducer sensor is terminated at the connector and must be open to atmosphere to sense pressure in vented gauge mode If water is allowed to enter ...

Страница 11: ...oltage ranges available are 0 5V and 0 10V Current input requires a special cable This is suitable for 0 10mA 0 20mA and 4 20mA ranges If the logger starts before the sensor is connected no malfunction will occur but the data up to the time when the sensor was connected will be zero values 1 3 3 4 Communication Link The communication link is a cable which interfaces directly to a PC serial port or...

Страница 12: ...ropriate connector 1 4 1 Logger Set Up The logger is set up by running the support software or by downloading programming data from the Psion Workabout Refer to the PrimeWare User Manual or to the PrimeLog Psion User Manual as appropriate 1 4 2 Logger Use No routine action is required when the logger is in use Data may be downloaded at any time without interrupting the recording of data either by ...

Страница 13: ...e which will be assumed here for the measurement point to be set on the centreline of the pipe and to assume that flow is symmetrical about this point There is the additional complication that the probe forms an obstruction to the flow blockage factor Happily these problems are minimised by the probe manufacturer who supplies tables F factors which give the ratio of mean velocity to measured centr...

Страница 14: ...Flowmeters Interfacing the PrimeLog instruments to other flowmeter sensors requires knowledge of the powering requirements of these sensors The following table specifies the power interface Powering Standard Sensors Type Sensor Power source 1 Contact Closure Kent PSM LRP MSM PU10 Kent Helix 4000 Reed Switch Meinecke Socam K01 K505R K510 RO2 2 RD022 Schlumberger Model S Cyble LF Cyble HF Datalogger...

Страница 15: ...PS40 40 5 5 PSM LT 15 0 5 MSM T ALL 1 MSM RS ALL 10 2 1 2 Schlumberger Domestic Helix Meters Pulse Unit Type CYBLE CYBLE LF METER S TLOS HF K 2 5 K 5 K 10 K 25 K 100 K 1000 Type Size mm FCAL Aquadis 15 20 1 0 01 0 1 0 25 0 5 1 2 5 10 100 25 30 10 0 05 1 2 5 5 10 25 100 1000 40 10 0 1 1 2 5 5 10 25 100 1000 P40M All 1 0 01 1 2 5 5 10 25 100 1000 Flowstar M 40 100 1 1 2 5 5 10 25 100 1000 50 100 100...

Страница 16: ...an be distinguished by the centre pointer dial registration 1000 litres rev Applies to 7 digit counters only the other FCAL s apply to the 8 digit counters Kent combination meters use a Helix 3000 meter as the main meter and a PSM T as the secondary meter Select the appropriate FCAL from the table above for each of the meters Master 2000 has been discontinued 2 1 4 2 Schlumberger meters It should ...

Страница 17: ...e values available The individual meter should be checked before selecting the appropriate FCAL The K505R is a removable reedswitch with only two FCAL values available It is recommended that the K10 position on the index head be used at all times when using the R02 2 and RD022 reedswitch as this will give a higher resolution The two Opto devices use K 1000 as a pulsed output value ...

Страница 18: ...omagnetic Meters ABB Krone Fisher Porter Insertion Meters Quadrina MEP QEP ABB Aquaprobe Analogue channels Voltage 100 mV 0 5 V 1 0 V 5 0 V 10 V Current 10 mA 20 mA 4 20 mA Pressure 350 mBar 20 Bar 3 5 m 200 m Accuracy 20 C 0 1 or 0 5 of range Dedicated pressure channel Range 3 25 Bar Accuracy 20 C 0 5 of range Auto Zero On site by Psion Workabout Outputs Alarm One per channel Local comms 19200 ba...

Страница 19: ...measurement intervals may reduce battery life Battery options Alkaline field replaceable battery Physical Sealing IP68 all models Operational range 0 C to 50 C Dimensions Submersible no modem 112 x 59 x 155 mm except 4 channel model 112 x 59 x 178 mm 4 channel model only Submersible with modem 112 x 59 x 195 mm except 4 channel model 112 x 59 x 270 mm 4 channel model only ...

Страница 20: ...ge There is no restriction on the number of loggers in any package A special warning label Hazard Label for Class 9 Miscellaneous Dangerous Goods must be affixed to the outside of the package This label is readily available from packaging suppliers 2 3 1 2 Shipment of loggers with discharged batteries It is expressly forbidden to ship equipment with discharged batteries Cells which are discharged ...

Страница 21: ...uide to indicate the maximum number of apparatus that may be connected simultaneously to a single telephone line without affecting the bell or tone ringing characteristics of the items connected The REN of the modem is I To calculate the maximum number of items that may be connected to a single exclusive telephone line add all the REN values of the connected equipment The total should be four or l...

Страница 22: ...modem will operate correctly under all possible conditions when connected to compatible PABX equipment Any cases of difficulty should be reported directly to Primayer These modems may not be connected to PABX systems which do not have a BT431A compatible socket connection ...

Страница 23: ...e logging 5 Flowmeters 13 Interfacing 12 Internal Pressure Transducer 9 Kent Meters 15 logger Features 4 Logger Configuration 12 Logger Set Up 11 Logging features 4 Meter Scaling Tables 15 Modem Connection 10 Polarisation 9 PrimeLog External view 7 Model 2 external view 6 Probe calibration 12 PSTN modem 6 Quadrina Insertion Meters 12 Safety 19 Scaling Tables 14 Schlumberger meters 15 Sealing 9 Soc...

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