Pulsar Measurement FlowCERT Lite Product Manual

FlowCERT Lite

Instruction Manual

2

PULSAR MEASUREMENT

3

FLOWCERT LITE (FOURTH EDITION REV 1)

February 2021
Part Number M-150-L-004-1P

COPYRIGHT

© Pulsar Measurement, 2016 -21. All rights reserved. No part of this publication may be
reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any
language in any form without the written permission of Pulsar Process Measurement Limited.

WARRANTY AND LIABILITY

Pulsar Measurement guarantee for a period of 2 years from the date of delivery that it will
either exchange or repair any part of this product returned to Pulsar Process Measurement
Limited if it is found to be defective in material or workmanship, subject to the defect not being
due to unfair wear and tear, misuse, modification or alteration, accident, misapplication, or
negligence.

DISCLAIMER

Pulsar Measurement neither gives nor implies any process guarantee for this product and shall
have no liability in respect of any loss, injury or damage whatsoever arising out of the
application or use of any product or circuit described herein.

Every effort has been made to ensure accuracy of this documentation, but Pulsar Measurement
cannot be held liable for any errors.

Pulsar Measurement operates a policy of constant development and improvement and reserves
the right to amend technical details, as necessary.

The FlowCERT Lite shown on the cover of this manual is used for illustrative purposes only and
may not be representative of the actual FlowCERT Lite supplied.

CONTACT
For technical support, please contact:
Europe: [e-mail]

Outside Europe: [e-mail]
If you have any comments or suggestions about this product, please contact:
Europe: [e-mail]

Outside Europe: [e-mail]
Pulsar Measurement website: www.pulsarmeasurement.com

United States

11451 Belcher Road South
Largo,
FL 33773
888-473-9546

Canada

16456 Sixsmith Drive
Long Sault, Ont.
K0C 1P0
855-300-9151

United Kingdom

Cardinal Building, Enigma
Commercial Centre

Sandy’s Road, Malvern

WR14 1JJ
00 44 (0)1684 891371

4

CONTENTS

Chapter 1: Start Here… ........................................................................................................... 9

About this Manual ............................................................................................................... 9

About the FlowCERT ........................................................................................................ 10

Functional Description .................................................................................................... 11

Product Specification ....................................................................................................... 12

EU Certificate of Conformity ......................................................................................... 14

Chapter 2 FlowCERT Lite Installation ............................................................................. 15

Unpacking ............................................................................................................................ 15

Power Supply Requirements......................................................................................... 15

Safety Symbols ................................................................................................................... 16

Location ................................................................................................................................ 17

Dimensions .......................................................................................................................... 18

Wall Mount .......................................................................................................................... 18

Cable Entry ........................................................................................................................... 20

Terminal connection details .......................................................................................... 20

Terminal connections ...................................................................................................... 20

Transducer ........................................................................................................................... 21

ATEX ....................................................................................................................................... 21

FM ........................................................................................................................................... 21

Internal Temperature Compensation ........................................................................ 24

Mounting Bracket ............................................................................................................. 25

Voltage Selector and Fuse Location .......................................................................... 27

Preparation for Operation ............................................................................................. 28

Maintenance ....................................................................................................................... 28

Chapter 3 How To Use Your FlowCERT Lite ................................................................ 29

Operating the Controls ................................................................................................... 29

Run Mode ............................................................................................................................. 30

Program Mode ................................................................................................................... 31

How to Access Program Mode .................................................................................... 31

Hot Keys ................................................................................................................................ 32

Menu Keys ........................................................................................................................... 33

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Numeric Keys ...................................................................................................................... 33

Using the Menu System ................................................................................................. 34

Directly Editing Parameters ......................................................................................... 35

Test Mode ............................................................................................................................ 36

Using the Serial Interface ............................................................................................... 37

Parameter Defaults ........................................................................................................... 39

Chapter 4 Quick Setup Guide ........................................................................................... 40

Enter Program Mode ....................................................................................................... 40

Choose Quick Setup ......................................................................................................... 40

Choose Your Application ............................................................................................... 41

Quick Setup ......................................................................................................................... 43

Exponential Devices (P700 = 1) ................................................................................... 47

Point of Measurement .................................................................................................... 48

Calculations ......................................................................................................................... 50

Example 1 V-Notch Weir ................................................................................................ 52

BS3680 Flumes (P700 = 2) ............................................................................................. 54

Calculations ......................................................................................................................... 55

Rectangular Flume ............................................................................................................ 55

U-Throated Flume ............................................................................................................. 56

Example 2 BS3680 U-Throated Flume ...................................................................... 57

BS3680 Weirs (P700 = 3) ................................................................................................ 59

Calculations ......................................................................................................................... 59

BS3680 Rectangular Weir .............................................................................................. 59

BS3680 V-Notch Weir...................................................................................................... 60

Example 3 BS3680 Rectangular Weir ........................................................................ 61

BS3680 Rectangular Broad Crested Weir ................................................................ 63

Calculations ......................................................................................................................... 63

Special Devices (P700 =5) .............................................................................................. 65

Calculations ......................................................................................................................... 66

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Universal Calculations (P700=6) .................................................................................. 67

Calculations ......................................................................................................................... 67

Chapter 5 Parameter Guide ............................................................................................... 68

Menu System ...................................................................................................................... 68

Top Level Menu ................................................................................................................. 68

Application Menu .............................................................................................................. 69

Relays Menu ........................................................................................................................ 70

Data Logs Menu ................................................................................................................ 71

OCM Menu .......................................................................................................................... 72

Display Menu ...................................................................................................................... 73

mA Output Menu .............................................................................................................. 73

Compensation .................................................................................................................... 74

Stability Menu .................................................................................................................... 74

Echo Processing Menu .................................................................................................... 75

System Menu ...................................................................................................................... 76

Device Comm Menu ........................................................................................................ 77

Test Menu ............................................................................................................................ 78

Chapter 6 Parameter Listing and Description ............................................................ 79

Application Parameters................................................................................................... 79

Operation ............................................................................................................................. 79

Dimensions .......................................................................................................................... 80

Relay Parameters ............................................................................................................... 82

Alarms .................................................................................................................................... 83

Pumps .................................................................................................................................... 87

Control ................................................................................................................................... 91

Miscellaneous ..................................................................................................................... 93

Common Relay parameters........................................................................................... 95

Data Log parameters ....................................................................................................... 96

Totaliser Audits .................................................................................................................. 96

Temperature ........................................................................................................................ 96

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OCM Parameters ............................................................................................................... 98

PMD Setup ........................................................................................................................... 98

Dimensions ........................................................................................................................ 102

Calculations ....................................................................................................................... 108

Breakpoints ........................................................................................................................ 108

Tables ................................................................................................................................... 109

Average Flow .................................................................................................................... 109

Display Parameters ......................................................................................................... 110

Options ................................................................................................................................ 110

Failsafe ................................................................................................................................. 111

Auxiliary ............................................................................................................................... 112

Totaliser ............................................................................................................................... 114

Bargraph ............................................................................................................................. 116

mA Output Parameters ................................................................................................. 116

Range ................................................................................................................................... 116

Operation ........................................................................................................................... 117

Setpoint ............................................................................................................................... 117

Limits .................................................................................................................................... 118

Trim ....................................................................................................................................... 118

Failsafe ................................................................................................................................. 119

Allocation ........................................................................................................................... 119

Compensation Parameters .......................................................................................... 119

Offset.................................................................................................................................... 119

Temperature ...................................................................................................................... 120

Velocity ................................................................................................................................ 120

Stability Parameters ....................................................................................................... 121

Damping ............................................................................................................................. 121

Indicator .............................................................................................................................. 122

Rate ....................................................................................................................................... 122

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Filters .................................................................................................................................... 123

Echo Processing Parameters ....................................................................................... 124

Transducer Status ............................................................................................................ 124

System Parameters ......................................................................................................... 125

Passcode ............................................................................................................................. 125

Backup ................................................................................................................................. 125

System Information ........................................................................................................ 126

Date & Time ...................................................................................................................... 127

LED Colour ......................................................................................................................... 127

Watchdog ........................................................................................................................... 128

Daylight Saving Time ..................................................................................................... 129

Device Comm. .................................................................................................................. 133

RS232 Set Up .................................................................................................................... 133

RS 485 Set Up ................................................................................................................... 133

Remote Alarm ................................................................................................................... 134

Test Parameters ............................................................................................................... 136

Simulation .......................................................................................................................... 136

Hardware ............................................................................................................................ 137

Chapter 7 Troubleshooting .............................................................................................. 140

Chapter 8 Disposal .............................................................................................................. 141

Notes ........................................................................................................................................ 142

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CHAPTER 1: START HERE…

Congratulations on your purchase of a Pulsar FlowCERT Lite. This quality
system has been developed over many years and represents the latest in
high technology ultrasonic level measurement and control.

It has been designed to give you years of trouble-free performance, and a
few minutes spent reading this operating manual will ensure that your
installation is as simple as possible.

About this Manual

It is important that this manual is referred to for correct installation and
operation. There are various parts of the manual that offer additional help

or information as shown.

Tips

TIP: Look f o r this icon t h r oughout y o u r Pulsar Me a s u r e ment manual to
find help f u l informatio n a n d answers t o f r equentl y a s ked questio n s .

Additional Information

References

See Also

References to other parts of the manual.

Additional Information

At various parts of the manual, you will find sections
like this that explain specific things in more detail.

FLOWCERT INSTRUCTION MANUAL

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About the FlowCERT

The FlowCERT lite open channel flow meter is a state-of-the-art ultrasonic
flow metering and control system which provides comprehensive flow
monitoring with data logging (optional) and control functions for a
complete range of flumes, weirs and channels.

Easy calibration via the “Quick Set Up” menu and maintenance free “fit and
forget” performance means that you can install the FlowCERT LITE rapidly

and with confidence.
FlowCERT LITE is equipped with five user definable relays enabling initiation

of control or indication devices such as pumps, samplers and remote
totalisers, along with an isolated mA output to provide remote indication
while local indication of flow and total flow is provided by a back lit LCD
display and bar graph.

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Functional Description

FlowCERT Lite sends a transmit pulse to the transducer, which emits an
ultrasonic pulse perpendicular to the transducer face, and the returned echo
is sent back to the FlowCERT Lite. The time taken to receive the echo is
measured and the distance from the transducer face to the surface being
monitored is calculated.

FlowCERT Lite can measure from zero to 16m (52.49 feet) from the face of
the transducer to the surface being monitored, dependent on the
application chosen and transducer used.

The relays can be programmed to activate alarms, pump starters, or other
control equipment. There is an isolated 4-20 mA output that can be
connected to a recorder or PLC, to monitor, level space, distance, OCM
head, or OCM flow, independently from that shown on the display.
Additionally, there is an RS232 port, so that the FlowCERT Lite can be
operated remotely by a PC or other equipment.

FlowCERT Lite can be programmed either by the built-in keypad (standard),
or by PC via the RS 232 Serial Interface (optional). All parameters are stored
in non-volatile memory, so are retained in the event of power interruption. A
second backup copy of all parameters can also be retained in the FlowCERT
Lite memory, in case an alternative set of parameters needs to be stored.

Five user definable control relays with individual setpoints and intelligent
performance logging software features ensure maximum control versatility.

The system utilises the unique DATEM software (Digital Adaptive Tracking of
Echo Movement). This is a proven digital mapping technique developed
especially for the Pulsar Ultra range, which gives the system unequalled

ability when identifying the “true target level” in the face of competing

echoes from pipes, pumps, or other obstructions. Coupled with the powerful
‘all new’ dB transducer range, the FlowCERT Lite lives up to its reputation as
the most reliable ultrasonic level measurement system available.

The Pulsar FlowCERT Lite ultrasonic level controller has been designed to
provide maintenance-free fit and forget performance.

FLOWCERT INSTRUCTION MANUAL

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Product Specification

PHYSICAL

Wall Mount Outside Dimensions

235 x 184 x 120 mm (9.25 x 7.24 x 4.72 inch)

Weight

Nominal 1kg (2.2lbs)

Enclosure Material/Description

Polycarbonate, flame resistant to UL94-5V

Cable Entry Detail

10 cable entry knock outs, 1 x M16, 5 x M20
underside, 4 x 18mm dia (PG11) at rear

Transducer Cable Extensions

-core screened

Maximum Separation

1000m (3,280 ft), 500m (1,640 ft) for mmWave

ENVIRONMENTAL

IP Rating (Wall)

IP65 (NEMA 4X), IP20 when open

Max. & min. temperature
(electronics)

-20 ºC to +50 ºC (-4˚F to +120˚F)

Flammable atmosphere approval

Safe area: compatible with approved dB transducers
(see transducer spec' sheet)

CE Approval

See EU Declaration of Conformity

PERFORMANCE

Accuracy

0.1% of the measured range (dB3 and external
temperature compensation or internal
compensation using twin sunshields)

Resolution

0.5mm (dB3 and external temperature compensation)

Max. Range

Dependent on application and transducer (maximum
16m (52.49ft) dBR16)

Min. Range

Dependent upon application and transducer
(minimum zero dB Mach3)

Rate Response

Fully adjustable

ECHO PROCESSING

Description

DATEM (Digital Adaptive Tracking of Echo Movement)

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OUTPUTS

Analogue output

Isolated (floating) output (to 150V) of 4-20 mA or 0-20
mA into 500Ω (user programmable and adjustable)
1µA resolution

Digital output

Full Duplex RS232

Volt free contacts, number, and
rating

5 form "C" (SPDT) rated at 5A at 115V/240V AC

Display

6 digits plus 12-character text, plus bar graph with
direction indicators, remote communicator identifier,
and program/run/test mode indicators

PROGRAMMING

On-board programming

By integral keypad

PC programming

Via RS232

Programming security

Via passcode (user selectable and adjustable)

Programmed data integrity

Via non-volatile RAM, plus backup

SUPPLY

Power Supply

115V AC +5% / 10% 50/60 Hz, 230V AC +5% / 10%
50/60 Hz. DC 22-28V 10W maximum power (typically
6W)

Fuses

100 mA at 210-230 VAC (fitted as standard to wall
unit) 200 mA at 105-115 VAC

REMOTE COMMUNICATOR

Enclosure protection

IP68

Max and Min Temperature

-20 ºC to +70 ºC (-4˚F to +158˚F)

Pulsar Measurement operates a policy of constant development and
improvement and reserve the right to amend technical details, as necessary.

FLOWCERT INSTRUCTION MANUAL

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EU Certificate of Conformity

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CHAPTER 2 FLOWCERT LITE INSTALLATION

Unpacking

Power Supply Requirements

FlowCERT lite can operate from AC supply or from a DC battery. The AC is
either 115 +5%/-10% 50/60Hz or 230V +5%/-10% 50/60Hz, depending on
the position of the selector switch. The DC is 22-28V. In all cases the
FlowCERT lite will typically consume 6W of power, with a maximum of 10W.
If FlowCERT lite has both an AC and DC supply available then the AC supply
source will be automatically sensed and used, should the AC supply be
removed for any reason then the DC supply will take over.

The AC and DC wiring should be completed using either 1.5–2.5mm2 (16 –
14AWG) stranded or 1.5–4mm2 (16 – 14AWG) solid wire, with all terminals
being tightened to (0.5Nm) (4.5in. lbs.). An external supply isolator/circuit
breaker (AC or DC) must be fitted and labelled to identify the instrument to
which it refers.

Important Information

All shipping cartons should be opened carefully. When using a box cutter, do not
plunge the blade deeply into the box, as it could potentially cut or scratch
equipment components. Carefully remove equipment from each carton,
checking it against the packing list before discarding any packing material. If
there is any shortage or obvious shipping damage to the equipment, report it
immediately to Pulsar Process Measurement Limited.

FLOWCERT INSTRUCTION MANUAL

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Safety Symbols

Detailed below are descriptions and meanings of safety/warning symbols
that are used on the FlowCERT Lite and in this manual.

SYMBOL

DESCRIPTION

DIRECT CURRENT (DC)

ALETRNATING CURRENT (AC)

PROTECTIVE CONDUCTOR TERMINAL

CAUTION (Refer to accompanying Documents)

!

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Location

The FlowCERT Lite must be mounted in a non-hazardous (safe) area, and the
transducer fitted in the hazardous area

When choosing a location to mount the enclosure, bear in mind the
following:

• Ensure that the FlowCERT Lite is installed in a “Safe”, non-hazardous

area.

• For a clear view of the LCD display, it is recommended that it is

mounted at eye level.

• The mounting surface is to be vibration free.

• The ambient temperature is between -20°C and 50°C.

FLOWCERT INSTRUCTION MANUAL

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• There should be no high voltage cables or inverters nearby,

Dimensions

Wall Mount

The dimensions of the wall fixing holes are as shown below:

The FlowCERT Lite should be mounted by drilling three holes suitable for
size 8 screws (length to suit the application) and fixing the screw in place.
Hang the unit on this and fix the two remaining screws by removing the
terminal access cover to access the pre-drilled holes.

198mm (7.80”)

30mm
(1.18”)

142mm

(5.59”)

FIXING HOLES

Important Information

All electronic products are susceptible to electrostatic shock, so follow proper
grounding procedures during installation.

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The full dimensions of the enclosure are as shown below:

235mm (9.25”)

184mm (7.24”)

212mm (8.35”)

0.96”

(24.5mm)

1.89”

(48mm)

0.96”

(24.5mm)

1.06”

(27mm)

1.10”

(28mm)

1.10”

(28mm)

1.10”

(28mm)

1.18”

(30mm)

142mm (5.59”)

4.72” (120mm)

FLOWCERT INSTRUCTION MANUAL

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Cable Entry

There are 6 cable gland knockouts on the base of the FlowCERT Lite (5 x
20mm (0.79"), 1 x 16mm (0.63")) and 4 on the rear (4 x 18mm dia (0.73")).
Select which ones you wish to take out, and remove them by using a circular
cutter, such as a tank cutter. Take care not to damage the circuit board
inside whilst undertaking this. Do not use a hammer, as this may cause
damage to the enclosure. It is recommended that you use suitable cable
glands to ensure that the ingress rating is maintained.

Terminal connection details

There is a wiring diagram inside the terminal access cover, and is shown
below:

Terminal connections

Power

The FlowCERT can operate from mains AC and automatically from DC or
battery backup in the event of power failure or can be operated permanently
from DC or batteries.

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Transducer

The transducer should be installed, and connected, in accordance with the
installation instructions contained in the Transducer User Guide. The entire
range of standard dB/dBR transducers is certified for use in hazardous areas
and different models are available for use in Zone 1 or Zone 0. DBR16 is
also available for use up to Zone 0. Wire the transducer to the FlowCERT
Lite transducer terminals as follows:

Transducer 1

TERMINAL CONNECTION DETAILS

Unit Type

Green:
Screen

Red:

Power

White:

Signal 3 Wall Mount

37

38

39

40

When using 2-core screened extension cable, the Black and Green wires of
the transducer should be connected to the screen of the extension cable

which in turn should be connected to the appropriate 0 volts’ terminal of the

FlowCERT Lite.

ATEX

For Zone 1 applications a transducer certified to Sira 02ATEX5104X is used,
and must be supplied via a 4000A breaking fuse, which is fitted as standard
to the FlowCERT Lite.

For Zone 0 a transducer certified to Sira 02ATEX2103X is used, which must
be connected to the FlowCERT controller via an external Zener barrier.

FM

For EEx m (Zone 1) applications a transducer certified to FM Class I Div 1
Group A, B, C & D, ClassII Div 1 Group E, F & G, Class III is used, and must

be supplied via a 1500A breaking fuse, which is fitted as standard to the
FlowCERT level controller. Restrictions do not use in the presence of these
groups of Chemicals, Aliphatic Hydrocarbons, Ketones or Esters.

For EEx ia (I.S.) a transducer certified to FM Class I Div 1 Group A, B, C &
D, ClassII Div 1 Group E, F & G is used, which must be connected to the
FlowCERT via an external Zener barrier. See transducer label for certification
details.

FLOWCERT INSTRUCTION MANUAL

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Relay Outputs

The five relays can be programmed for a variety of alarms, pump control, or
other process functions. The relay contacts are all rated at 5A at 240V AC. All
connections should be such that the short circuit capacity of the circuits to
which they are connected, is limited by fuses rated so that they do not
exceed the relay rating.

Current Output

This is an isolated (floating) mA output (to 150 V), of 4 - 20mA or 0 - 20mA,
and the load should not exceed 500 .

Temperature Input

The FlowCERT Lite can be used with an external temperature sensor and a dB3 transducer, allowing more localised compensation of the measured distance due to changes in temperature.

There are 2 types of external models, Type A and Type B and their ranges are
as follows:

TYPE

RANGE

A

-25° to 50°C

B

-25° to 125°C

Important Information

The temperature sensor should be placed close to the point of measurement
and out of the effects of direct sunlight. This allows for the temperature sensor
to measure the true air temperature, thereby giving the most accurate results.

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The Temperature sensor connections are as follows:

DESCRIPTION

TEMPERATURE SENSOR

FLOWCERT LITE

Power Supply

Terminal 1

Terminal 29

Return

Terminal 2

Terminal 28

Temp Source (P852), should be set to option 4 or 5 depending on the
sensor range, set 4 for type A and 5 for type B (see above), the range is
specified on the label of the sensor.

92mm

182mm

100mm

M20 ENTRY

IP67 ABS HOUSING

316 STAINLESS STEEL

6mm

FLOWCERT INSTRUCTION MANUAL

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Internal Temperature Compensation

The FlowCERT Lite can also be used with a dB3 transducer fitted with twin
Pulsar sunshields, allowing a more localised compensation of the measured
distance due to changes in temperature

Parts supplied in the sun shield kit should be:

QTY

DESCRIPTION

2

Sunshield

1

Washer 1 (60mm O.D. x 33mm I.D.)

1

M20 Thread adapter

1

Washer 2 (34mm O.D. x 21mm I.D.)

1

Mounting bracket kit

1

M20 Nut

The upper sun shield is held in place by the mounting bracket and the M20
nut. The bracket can be fixed using the supplied ‘U’ bolts.

The assembly should be mounted perpendicular to the water surface at the
correct position as specified by the structure designer/manufacturer.

Important Information

The temperature sensor should be placed close to the point of measurement
and out of the effects of direct sunlight. This allows for the temperature sensor
to measure the true air temperature, thereby giving the most accurate results.

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Mounting Bracket

10 mm

22 mm

25 mm

75 mm

75 mm

175 mm

30 mm

30 mm

90 mm

30 mm

100 mm

14 mm

FLOWCERT INSTRUCTION MANUAL

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Temp Source (P852), should be set to option 2, so the temperature from the
transducer is always used.

The unit is connected as follows:

CABLE COLOUR

DESCRIPTION

TERMINAL NO.

Green

Screen

37

Red

Power

38

White

Signal

39

Black

0 Volts

40

RS232 Serial Interface

If required, you can connect to the serial interface, to operate your FlowCERT
Lite remotely.

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Voltage Selector and Fuse Location

The voltage selector switch, and mains fuse is located inside the terminal
compartment. This is left of the mains terminals, as illustrated below:

DON’T FORGET

Make sure you move the voltage selector switch to the correct position for your
power supply

Important Information

Before applying AC power (mains), make sure you have correctly selected
the voltage selector switch, as detailed in the preceding pages.

Please note that all units are supplied set to 230 volts AC for safety reasons,
and a 100mA fuse fitted as standard.

Never operate the FlowCERT Lite with terminal access exposed.

An external switch or circuit breaker should be installed near to the
FlowCERT Lite to allow the supply to be removed during installation and
maintenance. In addition, the relay contacts should also have a means of
isolating them from the FlowCERT Lite.

Interconnecting cables must be adequately insulated in accordance with
local regulations. Strip back 30 mm of the outer insulation of the cable.
Strip 5 mm of insulation from the end of each conductor. Twist all exposed
strands of the conductor together. Insert the stripped conductor into the
terminal block as far as it will go and tighten the terminal block screw.
Ensure that all strands are firmly clamped in the terminal block and that
there is no excess bare conductor showing, and no stray strands.

Important Information

If the equipment is installed or used in a manner not specified in this
manual, then the protection provided by the equipment may be impaired.

FLOWCERT INSTRUCTION MANUAL

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Preparation for Operation

Before switching on, check the following:

✓ FlowCERT Lite is mounted correctly and is in a ‘safe’ area.
✓ The power supply is correctly installed.
✓ The voltage selector switch is in the correct position.
✓ The relays are connected correctly.

Maintenance

There are no user serviceable parts inside FlowCERT Lite, except the mains
fuse. If you experience any problems with the unit, then please contact
Pulsar Measurement for advice.

To clean the equipment, wipe with a damp cloth. Do not use any solvents on
the enclosure.

Important Information

The unique DATEM software comes into operation as soon as power is
applied and is designed to monitor a moving level or target with the
transducer in a fixed position.

If, after any period of use, it should become necessary to move the
transducer, for any reason, from its original operating position, switch off
the FlowCERT Lite, before proceeding, in order to prevent any undesirable
updates to the DATEM trace. If after moving the transducer the reading is
not as expected, please refer to Chapter 8 Troubleshooting.

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CHAPTER 3 HOW TO USE YOUR FLOWCERT LITE

Operating the Controls

Display

The display provides information on the current mode of operation, and
status of the remote communication. Whilst in the Run Mode it will display
the current level reading and its units of measure, along with status
messages with regards to the Transducer, Echo reception and Fail Safe
Mode. Additionally, it can be programmed to provide status messages on
alarms, pumps etc. When in the Program mode the display is used to read
information on the Menu System, Parameter Number and parameter details
and values, which can be entered. During Test Mode, the display is used to
monitor the simulated level. A bar graph is also provided which will provide
a visual reading of the level, in percentage of span.

1. Displays the current mode of operation

2. Main 6-digit display:

Run Mode; current measurement displayed, dependent on mode
and measurement units chosen, and value of hotkey selected.
Program Mode; displays parameter number and values entered for
parameters.
Test Mode; displays simulated level.

1 2 3

4

0%

5

6

Run Mode Program Mode Test Mode 100%

REMOTE COMMUNICATOR OFF

XXXXXXXXXXXX

000.000

FLOWCERT INSTRUCTION MANUAL

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3. Auxiliary Display, scrolling twelve-digit display.

Run Mode; displays measurement units, status messages on signal
and transducer, details of Hot Key function selected. It can be also
programmed to provide notification messages on alarms and
pumps etc. For full details please refer to Display Parameters in the
relevant parameter listing.
Program Mode; displays menu and sub menu headings, parameter
details and options.

4. Communicator status, this displays the status of remote PC

connection and velocity sensor operation.

5. Bar graph display, this gives visual indication of measurement in %

of span.

6. Level indicators:

Run Mode; indicates in which direction the level is moving.
Program Mode; indicates at which level of the menu system you are

at.

There are two main operating modes for your FlowCERT Lite, Run Mode and
Program Mode. There is also a Test Mode, used for checking the set-up.
All modes are now described.

Run Mode

This mode is used once the FlowCERT Lite has been set up in program
mode. It is also the default mode that the unit reverts to when it resumes
operation after a power failure.

When the FlowCERT Lite is switched on for the first time, it will display, in
metres, the distance from the transducer face to the target. All relays by
default are switched off.

After programming is complete, any relays that are set will operate when the

level reaches the relevant setpoint, and the LED’s will change colour (unless

specifically switched off).

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Program Mode

This mode is used to set up the FlowCERT Lite or change information already
set. You must use either the built-in keypad (standard) or, alternatively the
unit can be set up with a PC via the RS232 Serial Interface.

Entering a value for each of the parameters that are relevant to your
application provides all the programming information.

How to Access Program Mode

To enter program mode on the FlowCERT Lite, you simply enter the
passcode, via the keypad, followed by the ENTER key. The default passcode
is 1997, so you would press the following:

Important Information

There is a time-out period of 15 minutes when in program mode. After
which time the run mode will resumed if you do not press any key.

ENTER

1

9 9 7

FLOWCERT INSTRUCTION MANUAL

32

Hot Keys

There are five hot keys on the keypad, which can be used to quickly access
common parameters for viewing only, while in Run Mode. Pressing the hot
key once will display the first parameter, then repeated pressing will display
the others, then the FlowCERT reverts to Run Mode. In program mode, they
have different functions, the functions are shown below.

HOT KEY

RUN MODE

PROGRAM MODE

When application is Flow, you can view
the non-resettable totalizer. View and
reset the resettable totalizer.

Not used with FlowCERT Lite

Displays echo confidence, echo
strength, height above loss limit (HALL),
average noise, peak noise and
temperature

Not used with FlowCERT Lite
Not used with FlowCERT Lite

Reset parameter to default
setting

Instantaneous mA output

Not used with FlowCERT Lite

Dependent on application. Displays
distance, level, space, flow or rate of
change of level, velocity (if velocity
sensor attached)

Toggle relay setpoints
between units of measure and
% of span.

Not used with FlowCERT lite

Takes you to the last
parameter edited when you
first enter program mode.

Shows details of function type, firmware
revision and serial number

Enter decimal point.

∑

mA

n

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Menu Keys

The menu keys have the following functions:

HOT KEY

FUNCTION

1) Arrow keys for moving left and right around the menu

system.

2) Used in test mode to simulate the level moving up and

down.

1) Used to confirm each action (e.g. select a menu option)

Used to navigate up a level in the menu system, and back to run
mode.

Used to cancel a value entered in error

Numeric Keys

These keys are used for entering numerical information during
programming.

CANCEL

ENTER

1

2

3 4 5

6

7

8 9 0

.

+

-

FLOWCERT INSTRUCTION MANUAL

34

There are two means of editing parameters, directly or using the menu
system. Each is now described.

Using the Menu System

The menu system has been designed to make the changing of parameters
very simple. There are two levels of menu: Main Menu and Sub Menu.

On the display, there is a line of text that displays the menu system. Pressing
the arrow keys scrolls the display between the top-level menu items, (as the
example shown below, starting at Quick Setup).

As you press the cursor keys to scroll left and right between these, you can
press ENTER at any time, to select the desired menu heading, and take you
to the sub-menu.

Each of these options, along with their sub-menus, are described later in this
manual. When you move down into the sub-menu, you can scroll round
using the arrow keys, press ENTER to go to the required section of
parameters.

Once you have reached the relevant section, scroll through the parameters,
and enter the necessary information. To enter the information, use the

numeric keys and then press ENTER, you will then see the message “Saved!”

If you press CANCEL, then the change you made will not be saved, and the
message “Unchanged!!” will be displayed.

When you have finished, press CANCEL to go back to the previous level.
When you have reached the top level, then the FlowCERT Lite will ask for
confirmation before allowing you to go back into run mode. This is done by
pressing ENTER at the display prompt.

Quick Setup

Application

Relays

Data Logs

OCM

Display

mA Output

Compensation

Stability

Echo Process

System

Device Comm

Test

PULSAR MEASUREMENT

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Directly Editing Parameters

If you already know the number of the parameter, that you wish to look at or
edit, simply type the number in at any time while you are in the menu
system. Thus, if you are in either the menu or sub-menu level by pressing a
numeric key, you can enter the parameter number directly and jump straight
there. You cannot type a parameter number whilst at parameter level, only at
one of the two menu levels.

When you are at a parameter, the text line rotates automatically displaying
the parameter name, number, the applicable units, and the maximum and
minimum figure you can enter. The top line shows the value you are setting.

Once you have accessed a parameter, you can either just look at it, or
change it.

Once a parameter has been changed, press ‘ENTER’ and you will see the

message “Saved!”. If you press ‘CANCEL’, then the change you made will not
be saved, and the message “Unchanged!!” will be displayed.

You can jump straight to the last parameter you edited, by pressing ‘+/-’
when you first enter program mode.

Important Information

You can tell which part of the menu system you are in, as the up/down level
indicators, (arrows) next to the bar graph will indicate as follows:

• Top level menu: Down arrow on, to indicate you can move down.

• Sub-menu: Up and Down arrows on, to indicate you can move up to the top

level, and down to parameter level.

• Parameter Level: Up arrow on, to indicate you can move up to sub-menu

level.

• Parameter Editing: No arrows on.

FLOWCERT INSTRUCTION MANUAL

36

Test Mode

Test mode is used to simulate the application and confirm that all
parameters and relay setpoints have been entered as expected. During
simulation, there is a choice of whether the relays will change state (hard

simulation) or not (soft simulation), but the LED’s will always change colour

as programmed, and the mA output will change in accordance to the chosen
mode of operation. If you wish to test the logic of the system that the relays

are connected to then select hard simulation, but if you do not wish to
change the relay state, then select a soft simulation.

There are two simulation modes, automatic and manual. Automatic
simulation will move the level up and down between empty level or the pre­determined Start Level (P983) and Pump/Control relay switch points, if you
wish to change the direction of the level movement e.g. to go beyond relay
setpoints, this can be done by using the arrow keys. In manual simulation,
using the arrow keys will allow you to move the level up and down as
required.

To enter simulation, first go to program mode. Using the menu system,
select menu item ‘Test’, then sub-menu item ‘Simulation’. Simply change
the value of the parameter P980 to one of the following:

1= Manual soft simulation
2= Automatic soft simulation
3= Manual hard simulation
4= Automatic hard simulation

To return to program mode, press ‘CANCEL’ and test mode will end.
When in manual simulation, by default test mode will move the level by

0.1m steps. Altering the increment (P981) will change this value.
In automatic mode, the rate at which the level moves up and down is set by

the increment (P981 in metres, and the rate (P982) in minutes, which can be
changed to make the level move up and down faster. E.g. if increment (P981)
is set for 0.1m and rate (P982) is set to 1 min then the level will increase or
decrease at a rate of 0.1m/min. To make the simulated level move slower,
decrease the value in increment (P981) or increase the value in rate (P982).
To make the simulated level move faster, increase the value in increment
(P981) or decrease the value in rate (P982).

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Using the Serial Interface

The RS232 serial interface is used to communicate between the FlowCERT
Lite and a PC using the optional Ultra PC and other associated Pulsar
software packages, to obtain information such as data logging and view
echo traces upload, download and save parameter files. In addition, it can
also be used to control or obtain information using a standard PC or other
computer base equipment. To do so, the settings for control are as follows:
baud rate 19,200, 8 data bits, no parity, 1 stop bit.

The device should be connected as shown in Chapter 2 FlowCERT Lite

Installation.

To use the device remotely, you need to log on to start, and log off when
finished. When logged on, FlowCERT Lite will show ‘Remote ON’ on the
display, and “Communicator OFF” when logged off.

All commands should be followed by a carriage return.
When logged on, the unit will respond either OK (or a value) if the command

is accepted, or NO if it is not.
To log on, send the command
/ACCESS:pppp where pppp is the passcode (P922).
To log off, send the command
/ACCESS:OFF
To read a parameter value, send the command
/Pxxx where xxx is the parameter you wish to read, and the FlowCERT will

respond with the parameter value.
To set a parameter, send the command
/Pxxx:yy where xxx is the parameter number, and yy is the value you wish to

set it to.

FLOWCERT INSTRUCTION MANUAL

38

Other commands you can use are:

/LEVEL (shows current level)

/SPACE (shows current space)

/HEAD (shows current OCM head)

/FLOW (shows current OCM flow)

/TEMPERATURE (shows current temperature)

/CURRENTOUT1 (show the mA output 1 value)

/CURRENTOUT2 (show the mA output 2 value)

/CURRENTIN (show the mA input value)

/BACKUP1 (take backup of parameters to area 1)

/BACKUP2 (take backup of parameters to area 2)

/RESTORE1 (restore parameters from area 1)

/RESTORE2 (restore parameters from area 2)

Please consult Pulsar Measurement or contact your local Pulsar
representative for further details and a full list of available commands.

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Parameter Defaults

When you first switch the FlowCERT Lite on, it will be reading the distance
from the face of the transducer to the surface. It will be indicating in metres,
as shown on the display. All relays are set OFF.

The date (P931) and time (P932) in the FlowCERT Lite were set at the
factory, but may need checking, and amending if, for example the
application is in a time zone other than GMT, see relevant parameter listing
for full details.

In some applications, it is easier to empty the vessel, take a reading from the
FlowCERT Lite for distance and then setup the empty level to this figure.

Once you are satisfied with the installation, and FlowCERT Lite is reading
what you would expect in terms of distance from the face of the transducer
to the material level, then you can proceed with programming, for the
intended application. It is sensible to program all of the required parameters
at the same time. The system will be then set-up.

Note: The span is automatically calculated from the empty level, so the
empty level should be entered first.

Factory Defaults

When first installing the FlowCERT, or subsequently moving or using the unit on
a new application, before proceeding to program the unit for its intended
application it is recommended that you ensure that all parameters are at their
default values by completing a Factory Default P930, as described in the relevant
unit type parameter guide.

FLOWCERT INSTRUCTION MANUAL

40

CHAPTER 4 QUICK SETUP GUIDE

This quick set-up guide shows you how to get up and running within a few
minutes of installing your FlowCERT Lite.

Enter Program Mode

First you need to go from run mode into program mode. Assuming the
passcode is the default 1997, then you should enter the following on the
keypad:

Choose Quick Setup

Now you need to go into the quick setup. You will see on the menu the

words ‘Quick Setup’, which is the first item on the menu system. Try pressing

the two arrow keys to see some more menu options, but return to Quick
Setup, and press

ENTER

1

9 9 7

ENTER

ENTER

This takes you to the ‘Quick Setup Menu’.

This takes you to the common applications
menu, and several options will appear on
the display.

Important Notice

If you have already setup a common application, then there will be a number
shown other than 0, and you will see messages showing what the current setup is.
If you want to reset this and start again, press 0 (which will reset all the quick setup
parameters), otherwise pressing ENTER will allow you to edit the parameters that
have been set.

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Choose Your Application

There are six categories of Primary Measuring Device, which are all
described in this chapter. They are Exponential, BS3860 flumes, BS3860
weirs, Area/Velocity, Special and Universal.

Calculations for flow can be performed using absolute or ratiometric
calculations. The answer will be the same, the choice of calculation method
being limited to the amount of information available, with regards to the
primary measuring device.

For ratiometric calculation it is normally sufficient to know the maximum
flow at maximum head for the device in question. All types of primary
measuring devices can be set up with a choice of alarms.

If you want to set-up a basic Exponential device, as described in the
following example 1, then choose 1. You then need to select the PMD for
your application from the following available options: Suppressed

Rectangular Weir, Cipolletti (trapezoidal) weir, Venturi flume, Parshall
flume, Leopold Lagco flume, V notch weir, Contracted Rectangular weir

or other, for any other type of exponential device.
To set-up an application for a BS3680 flume, as described in the following

example 2, then choose 2. You then need to select the PMD for your
application from the following available options: Rectangular flume with or
without hump, U-throated flume with or without hump.

To set-up an application for a BS3680 weir, as described in the following
example 3, then choose 3. You then need to select the PMD device for your
application from the following available options: Rectangular weir, V notch

full 90o (90degrees), V notch half 90o (53 degree 8 minutes), V notch
quarter 90o (28 degree 4 minutes) or a Broad Crested weir.

To set-up an application for Area Velocity, then choose 4. You then need to
select the PMD for your application from the following available options: U-

channel (circular bottom with straight sides), Rectangular channel,
Trapezoidal channel, Round pipe or a Fixed pipe.

To set-up an application for a device contained in Special, choose 5. You
then need to select the PMD for your application from the following
available options: Palmer Bowlus flume, H-flume or a V notch, other than
BS3680.

FLOWCERT INSTRUCTION MANUAL

42

For devices which do not match any of the above devices the application can
be setup using a Universal flow calculation, to select this option choose 6.
You then need to select the PMD for your application from the following
available options: Linear flow or Curved flow.

Once you have chosen your application you will be asked a series of
questions which are answered by choosing the appropriate option as
detailed in the flow chart below. Once all of the questions have been
answered you will be prompted to provide further information, as detailed in
the tables below, in order to complete the programming of the unit.

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Quick Setup

Universal

1 = Linear Flow
2 = Curved Flow

BS3680 Weirs

1 = Rectangular
2 = V-Notch 90° (Full 90°)
3 = U-Throat
4 = U-Throat with Hump

Exponent

1 = Rectangular
2 = Rect. with Hump
3 = U-Throat
4 = U-Throat with Hump
5 = Leopold
6 = V-Notch
7 = Other
8 = Contracted Rect.

Quick Setup

PMD Type

0 = Off (No calculation)
1 = Exponential
2 = BS3680 Flumes
3 = BS3680 Weirs
4 = Not Available
5 = Special
6 = Universal

BS3680 Flumes

1 = Rectangular
2 = Rect. with Hump
3 = U- Throat
4 = U-Throat with Hump

Special

1 = Palmer Bowlus
2 = H–Flume
3 = V-Notch Angle

Calculation

1 = Absolute

2 = Ratiometric

How Many Alarms

0 = No Alarms
1 = 1 Alarm
2 = 2 Alarms
3 = 3 Alarms
4 = Four Alarms
5 = Five Alarms

For Each Alarm

1 = High Alarm
2 = Low Alarm
3 = Hi Hi Alarm
4 = Lo Lo Alarm
5 = Loss Of Echo

For Each Alarm

1 = Set to Relay 1
2 = Set to Relay 2
3 = Set to Relay 3
4 = Set to Relay 4
5 = Set to Relay 5

FLOWCERT INSTRUCTION MANUAL

44

Wait….

PARAMETER

DEFAULT

DESCRIPTION

P101 Transducer

1 = dB3

Select transducer to be used.

P706
Volume Units

1 = Litres

Units of flow on display and used for calculations.
1=litres 2=Cubic metres
3=Cubic feet 4=UK gallons
5=US gallons 6=Mil. USG

P707
Time Units

1 = Second

Units of time that flow units will be displayed and
calculated in.

1=units/sec 2=units/min
3=units/hour 4=units/day

P104
Measurement
Units

1 = Metres

Units used to enter dimensions and displayed
where appropriate.

1=Metres 2=Centimetres
3=Millimetres 4=Feet
5=Inches

P105
Empty Level

2.70m

Distance from the face of the transducer (lower
transducer on DUET) or end of the horn (dB
Mach3) or lens face of a mmWAVE to the material
at the bottom of the measuring element.

P703
Minimum Head

0.00m

Distance from empty point (P105) to zero flow.

P704
Maximum Head

2.575m

Distance from zero flow to max flow. It should be
noted that any change from P704 updates P106
Span and vice versa

P824
Totaliser Enable

1 = On

Enables the flow totaliser, P820, options are
0=Off, 1=On. Note this totaliser can be viewed
during run via the totaliser “Hot Key” It can be
reset but only via P820, whilst in “program mode”.

P816
Totaliser (R)

0 = No

Enables the totaliser to be displayed in the

auxiliary display whilst in “run mode”. Note this
totaliser is “resettable”, whilst in “run mode”, via

the totaliser hot key.

PULSAR MEASUREMENT

45

PARAMETER

DEFAULT

DESCRIPTION

P823
Totaliser

Multiplier

4 = *1

Sets the factor by which the calculated volume
will be divided or multiplied by before it is
displayed.

1 = /1000
3 = /10
5 = *10
7 = *1000
9 = *100,000

2 = /100
4 = *1
6 = *100
8 = *10,000
10 = *1,000,000

The remaining parameters required to finalise the setup of your application
will follow on immediately from the above. These parameters relate to
details required to carry out the calculation for flow and will be dependent
on the PMD chosen and the method of calculation chosen, please enter
values for the parameters concerned as requested.

PARAMETER

DEFAULT

DESCRIPTION

P705
Max Flow

0.00

If Ratiometric is selected: When requested enter the
known maximum flowrate, in units of volume (P706)
and Time (P707) which occurs at maximum head
(P704). If Absolute is selected: The maximum
flowrate will be shown here as calculated by the unit.

P710
Dimension A

0

When requested enter, in measurement units, P104,
the required dimension.

P711
Dimension B

0

When requested enter, in measurement units, P104,
the required dimension.

P712
Dimension C

0

When requested enter, in measurement units, P104,
the required dimension.

P717
Exponent

Dependent
on chosen
PMD

Where available the FlowCERT will automatically enter
the default exponent value for the PMD chosen, but
this can be changed if required. When P700=7
(Other), enter the exponent value as defined by the
manufacturer of the PMD.

P718
K Factor

Enter the ‘K’ factor for the PMD, obtained from the
manufacture’s specification

P719
Throat Width

Enter the Throat Width for the Parshall Flume,
obtained from the manufacturer’s ‘specification

FLOWCERT INSTRUCTION MANUAL

46

For More Options Hit Enter….

PARAMETER

DEFAULT

DESCRIPTION

P213 / P214
Relay 1 ON/OFF
setpoints

depends on

application

Set required Alarm Setpoints.

P223 / P224
Relay 2 ON/OFF
setpoints

depends on

application

Set required Alarm Setpoints.

P233 / P234
Relay 3 ON/OFF
setpoints

depends on

application

Set required Alarm Setpoints.

P243 / P244
Relay 4 ON/OFF
setpoints

depends on

application

Set required Alarm Setpoints.

P253 / P254
Relay 5 ON/OFF
setpoints

depends on

application

Set required Alarm Setpoints.

P708 Flow
Decimal

2

Set the number of decimal points required in the
flow rate display

P709 Flow Cut
Off

5.00%

Enter as a percentage of maximum flow, the
minimum flow rate to be added to the totaliser.

P830
mA Out Range

2= 4 to 20

mA

What the mA output uses for the range.
0= Off, 1= 0 to 20 mA, 2= 4 to 20 mA, 3= 20 to
0 mA, 4= 20 to 4 mA.

P870
Fill Damping

10m/min

Rate of maximum fill rate (set above the actual
fill rate of the vessel).

P871
Empty Damping

10m/min

Rate of maximum empty rate (set above the
actual empty rate of the vessel).

Default values used for determining the relay setpoints, when setting
Alarm relays, via the Quick Setup menu are entered as a % of span and are
as follows:

PARAMETER

ALARM ID

ON SETPOINT

OFF SETPOINT

Alarm

Hi Hi

90%

85%

Alarm

High

85%

80%

Alarm

Low

10%

15%

Alarm

Lo Lo

5%

10%

PULSAR MEASUREMENT

47

Exponential Devices (P700 = 1)

If the primary measuring device is a simple exponential device, then an
exponent value is required. The FlowCERT will automatically enter the
exponent value for the device chosen as detailed in the table below.

EXPONENT TYPE

PMD SHAPE EXAMPLE

EXPONENT (P717)

Suppressed Rectangular
Weir
(Without end contractions)

1.50, automatically set by the
unit.

Cipolletti (Trapezoidal)
Weir

1.50, automatically set by the
unit.

Venturi Flume

1.50, automatically set by the
unit.

Parshall Flume

Automatically calculated
according to the throat size.

Leopold Lagco Flume

1.55

V-Notch Weir

2.50

Other

As per manufacturer

Value to be set as required.

Contracted Rectangular
Weir
(With end contractions)

1.50

FLOWCERT INSTRUCTION MANUAL

48

Point of Measurement

The transducer must be above the maximum head P704 by at least the
near blanking distance P107.

For Suppressed/Contracted Rectangular, Trapezoidal and V-notch, weirs,
the head is measured upstream at a minimum distance of 3 times
maximum head from the weir plate to ensure the surface of the liquid is not
affected by turbulence or drawdown. (See DRWG. 1)

In the case of a Venturi flume the point of measurement should be 150 mm
upstream from the beginning of the converging section and for a Parshall
flume 2/3 the length of the converging section upstream of the throat
section. (See DRWG 2 and 3).

3 x Hmax
minimum

FLOW (q)

DRWG. 1

DRWG. 2

DRWG. 3

FLOW (q)

FLOW (q)

2/3 L

L

VENTURI FLUME

PARSHALL FLUME

PULSAR MEASUREMENT

49

For a Leopold Lagco flume the head is measured at a point upstream of
the beginning of the converging section as detailed in the table below. (See

DRWG 4).

FLUME SIZE

POINT OF MEASUREMENT

mm

inches

mm

inches

100 - 305

4 – 12 25

1.0

380

15 32

1.3

455

18 38

1.5

530

21 44

1.8

610

24 51

2.1

760

30 64

2.5

915

36 76

3.0

1065

42 89

3.5

1220

48 102

4.0

1370

54 114

4.5

1520

60 127

5.0

1675

66 140

5.5

1830

72 152

6.0

When any Other device is chosen please consult the manufacturer of the
device for details of where the point of measurement should be located but

FLOW (q)

THROAT

DIVERGING

CONVERGING

TRANSDUCER MOUNTED
MIN. BLANKING DISTANCE
(P107) ABOVE MAX. HEAD

POINT OF MEASUREMENT

DRWG. 4

FLOWCERT INSTRUCTION MANUAL

50

ensure that it is chosen such that the surface of the liquid is not effected by
turbulence or drawdown.

Calculations

Absolute

If the flow calculation is to be absolute P702 = 1 the flow will be calculated
using the formula (s) as follows:

EXPONENT TYPE

FORMULA

EXPONENT

K FACTOR

Suppressed
Rectangular Weir
(Without end
contractions)

Q = KLh*
Where:
Q=Flow
K=K Factor
L=Crest length of weir
h=head
*=exponent

1.50
Automatically
selected by the
FlowCERT

Automatically
calculated,
dependent on
measurement,
flow and time
units chosen.

Cipolletti
(Trapezoidal Weir)

Q = KLh*
Where:
Q=Flow
K=K Factor
L=Crest length of weir
h=head
*=exponent

1.50
Automatically
selected by the
FlowCERT

Automatically
calculated,
dependent on
measurement,
flow and time
units chosen

Venturi Flume

Q=Kh*
Where:
Q=Flow
K=K Factor
h=head
*=exponent

1.50
Automatically
selected by the
FlowCERT

Enter value of
K Factor (P718)
as required

Parshall Flume

Q=Kh*
Where:
Q=Flow
K=K Factor
h=head
*=exponent

Automatically
calculated,
dependent on
throat size
(P719)

Automatically
calculated,
dependent on
measurement,
flow and time
units chosen

PULSAR MEASUREMENT

51

EXPONENT TYPE

FORMULA

EXPONENT

K FACTOR

Leopold Lagco
Flume

Q=KD

0.0953hx

Where:
Q =Flow
K=K factor
D=pipe diameter
h=head
*=exponent

1.55
Automatically
selected by the
FlowCERT

Automatically
calculated,
dependent on
measurement,
flow and time
units chosen

V-Notch Weir

Q=Kh

x

Where:
Q =Flow
K=K factor
h=head
*=exponent

2.50
Automatically
selected by the
FlowCERT

Automatically
calculated,
dependent on
measurement
flow and time
units chosen.

Other

Q=Kh*

Enter value as
required

Enter value as
required

Contracted
Rectangular Weir
(With end
contractions)

Q=K(L-0.2*h)h*

1.50
Automatically
selected by the
FlowCERT

Automatically
calculated,
dependent on
measurement
flow and time
units chosen.

Ratiometric

If the flow calculation is to be ratiometric P702 = 2 the flow will be
calculated using the formula: q = q

cal

(h/h

cal

)x

Where:

q = flowrate

q

cal

= flowrate at maximum head (705)

h = head

h

cal

= maximum head (P704)

x = exponent (determined as in absolute calculation above)

FLOWCERT INSTRUCTION MANUAL

52

Example 1 V-Notch Weir

In this example it is required to calculate the flow through a Simple
Exponential Device, which on this occasion is a V-Notch Weir. The K factor
for the weir is unknown so ratiometric calculation will be used, there is no
requirement for alarms and the flow rate is to be displayed in litres/second.
The totaliser is to record the flow in cubic metres but is not to be displayed
during RUN.

The distance from the face of the lower transducer (DUET) to zero flow
(P105) is 1 metre and max head (P704) is 0.4 metres, maximum
flow(P705) is known to be 96.5 litres/second.

Transducer mounted
Min. blanking distance (P107)
above max. head

h

Minimum
3 x hmax

TYPICAL SIMPLE EXPONENTIAL DEVICE

DRWG. 5

PULSAR MEASUREMENT

53

To program the FlowCERT Lite for Example 1 V-Notch Weir by using the

Quick Setup menu proceed as follows. If required access the Program
Mode , key in the passcode 1997 and press ENTER. Using the ‘right’ arrow

key, go to the Quick Setup menu press ENTER and as prompted, by the
questions, select the relevant option and press ENTER.

QUESTION

OPTION

PMD Type

1 = Exponent

Exponent

6 = V-Notch

Calculation

2 = Ratiometric

No. of alarms

0 = No alarms

Transducer

1 = dB3

Volume units

1 = Litres

Time units

1 = Per second

Measurement units

1 = Metres

Empty Level

1.00m

Minimum head

0.00m

Maximum head

0.40m

Totaliser enabled

1 = On

Totaliser (R)

1 = Yes

Totaliser multiplier

4 = *1

Maximum flow

96.5

Programming is now complete, and the unit can now be returned to the run
mode, press CANCEL until Run Mode? Is displayed on the LCD press

ENTER, and the FlowCERT Lite will return to run mode.

Important Notice

If relay setpoints do not meet the exact requirements of the application, they can

be modified to suit by pressing ENTER when, “For More Options Hit Enter”, is

displayed, and entering new values to relay setpoints as required. Alternatively,
access the setpoints by the main menu system or directly accessing the parameters.

FLOWCERT INSTRUCTION MANUAL

54

BS3680 Flumes (P700 = 2)

Point of Measurement

The transducer must be above the maximum head P704 by at least the
near blanking distance P107.

For a Rectangular and U-throated flume, the head is measured at 3 to 4

times the maximum head upstream from the beginning of the converging
section, to ensure the surface of the liquid is not affected by turbulence.

(See DRWG 6)

3-4 x hmax

DRWG. 6

THROAT LENGTH

DIM C (P712)

DIM A (P710)

APPROACH WIDTH

DIM B (P711)

THROAT WIDTH/DIA.

FLOW (q)

BS3680 FLUME

PULSAR MEASUREMENT

55

Calculations

Rectangular Flume

Absolute

If the flow calculation is to be absolute P702 = 1 the flow will be calculated
using the formula: q = (2/3)

1.5gn0.5

CsCvCdbh

1.5

Where:

q = flowrate
gn = gravitational acceleration (nominal value = 980.66 cm/s2)

Cs = shape coefficient (value = 1)
Cv = velocity coefficient calculated by FlowCERT (P721)
Cd = discharge coefficient calculated by FlowCERT (P722)
b = throat width P711

h = head

Ratiometric

If the flow calculation is to be ratiometric P702 = 2 the flow will be
calculated using the formula: q= q

cal(Cv/Cvcal

)(Cd/C

dcal

)(h/h

cal

)

1.5

Where:

q = flowrate

q

cal

= flowrate at maximum head P705

Cv = velocity coefficient calculated by FlowCERT (P721)

C

vcal

= velocity coefficient at maximum head

Cd = discharge coefficient calculated by FlowCERT (P722)
C

dcal

= discharge coefficient at maximum head

h = head

h

cal

= maximum head P704

FLOWCERT INSTRUCTION MANUAL

56

U-Throated Flume

Absolute

If the flow calculation is to be absolute P702 = 1 the flow will be calculated
using the formula: q = (2/3)

1.5

g

n

0.5

CuCvCdbh

1.5

Where:

q = flowrate
gn = gravitational acceleration (nominal value = 980.66 cm/s2)
h = head

Cu= shape coefficient calculated by FlowCERT (P724)
Cv = velocity coefficient calculated by FlowCERT (P721)
Cd = discharge coefficient calculated by FlowCERT (P722)
b = throat width P711

Ratiometric

If the flow calculation is to be ratiometric P702 = 2 the flow will be
calculated using the formula:

q= q

cal(Cv/Cvcal

)(Cd/C

dcal

)(Cu/C

ucal

)(h/h

cal

)

1.5

Where:

q = flowrate

q

cal

= flowrate at maximum head P705

Cv = velocity coefficient calculated by FlowCERT (P721)

Cv

cal

= velocity coefficient at maximum head

Cd = discharge coefficient calculated by FlowCERT (P722)
Cd

cal

= discharge coefficient at maximum head

Cu = shape coefficient P724
Cu

cal

= shape coefficient at maximum head

h = head h

cal

= maximum head P704

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Example 2 BS3680 U-Throated Flume

In this example, it is required to calculate to BS3680 the flow through a U­Throated Flume without any hump. Absolute calculation will be used, and
there is a requirement for an alarm to indicate a low flow condition which
will be set to relay 1. The flow rate is to be displayed in cubic meters/hour
and the totaliser is also to record the flow in cubic metres, the resettable
totaliser is to be displayed during RUN.

The distance from the face of the lower transducer (DUET) to zero flow
(P105) is 35 inches and max head (P704) is 15 inches, maximum
flow(P705) will be calculated by the FlowCERT as 0.1784 Mil USG/day

The dimensions of the flume are as follows:

Approach Channel diameter (Dim “A”) P710 = 28 inches
Throat diameter (Dim “B”) P711 = 20 inches
Throat length (Dim “C”) P712 = 40 inches

FLOWCERT INSTRUCTION MANUAL

58

To program the FlowCERT Lite for Example 2 BS3680 U-Throated Flume
by using the Quick Setup menu proceed as follows. If required access the
Program Mode, key in the passcode 1997 and press ENTER. Using the
‘right’ arrow key, go to the Quick Setup menu press ENTER and as
prompted, select the relevant option and press ENTER.

QUESTION

OPTION

PMD Type

2 = 3680 Flume

3680 Flumes

3 = U-Throat

Calculation

1 = Absolute

No. of alarms

1 = 1 Alarm

Type alarm 1

2 = Low

Alarm No.1

1 = Set to relay 1

Transducer

1 = dB3

Volume units

2 = Cubic metres

Time Units

4 = Per hour

Measurement units

1 = Metres

Empty level

1.00m

Minimum head

0.00m

Maximum head

0.40m

Totaliser enabled

1 = On

Totaliser (R)

1 = Yes

Totaliser multiplier

7 = 1000

Approach dia. (Dim A)

0.70m

Throat dia. (Dim B)

0.50m

Throat length (Dim C)

1.00m

Programming is now complete, and the unit can now be returned to the run
mode, press CANCEL until Run Mode? Is displayed on the LCD press

ENTER, and the FlowCERT will return to Run Mode.

Important Notice

If relay setpoints do not meet the exact requirements of the application, they can

be modified to suit by pressing ENTER when, “For More Options Hit Enter”, is

displayed, and entering new values to relay setpoints as required. Alternatively,
access the setpoints by the main menu system or directly accessing the parameters.

PULSAR MEASUREMENT

59

BS3680 Weirs (P700 = 3)

Point of Measurement

The transducer must be above the maximum head P704 by at least the
near blanking distance P107.

For a Rectangular and V-notch weir, the head is measured at a point 4 to 5
times the maximum head upstream from the weir plate, to ensure the
surface of the liquid isn’t affected by turbulence or drawdown. (See DRWG 7)

Calculations

BS3680 Rectangular Weir

Absolute

If the flow calculation is to be absolute P702 = 1 the flow will be calculated
using the formula: q = Ce 2/3(2gn)

0.5

beh

e

1.5

Where:
q = flowrate
Ce = discharge coefficient calculated by FlowCERT (P723)

gn = gravitational acceleration (nominal value = 980.66 cm/s2)
be =effective approach width where b is approach width
(Dim “A”) P710

he = effective head

4-5 x hmax
minimum

DRWG. 7

BS3680 WEIR

FLOWCERT INSTRUCTION MANUAL

60

Ratiometric

If the flow calculation is to be ratiometric P702 = 2 the flow will be
calculated using the formula: q= q

calCe/Cecal(he/hecal

)

1.5

Where:
q = flowrate

q

cal

= flowrate at maximum head P705

Ce = discharge coefficient calculated by FlowCERT (P723)

Ce

cal

= discharge coefficient at maximum head
he = effective head
he

cal

= effective head at maximum head

BS3680 V-Notch Weir

Absolute

If the flow calculation is to be absolute P702 = 1 the flow will be calculated
using the formula: q = Ce8/15tan(theta/2)(2gn)

0.5h2.5

Where:

q = flowrate
Ce = discharge coefficient calculated by FlowCERT (P723)
theta = V-notch angle
gn = gravitational acceleration (nominal value = 980.66 cm/s2)
h = head

The FlowCERT pre-sets the angle (theta) on selection of the chosen device
this angle is 90° for a BS 3680 full 90°V notch weir, 53° 8 minutes in the
case of the BS3680 half 90°V notch weir and 28° 4 minutes in the case of
the BS3680 quarter 90°V notch.

Ratiometric

If the flow calculation is to be ratiometric P702 = 2 the flow will be
calculated using the formula: q = q

calCe

(h)/Ce(h

cal

)(h/h

cal

)

2.5

Where:

q = flowrate

q

cal

= flowrate at maximum head P705

Ce(h) = discharge coefficient for head
Ce(h

cal

) = discharge coefficient for maximum head

h = head

h

cal

= maximum head P704

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61

Example 3 BS3680 Rectangular Weir

In this example it is required to calculate to the flow through a BS3680
Rectangular weir. Absolute calculation will be used, and there is a
requirement for an alarm to indicate a high flow condition to be set to relay

3. The flow rate is required to be displayed in litres/minute and the totaliser
is to record the flow in cubic metres, the resettable totaliser is to be
displayed during RUN. The transducer to be used is a dB3.

The distance from the face of the transducer to zero flow (P105) is 1 metre
and max head (P704) is 0.4 metres, maximum flow (P705).

Approach width (Dim “A”) P710 = 0.5 m
Crest width (Dim “B”) P711 = 0.3 m
Crest Height (Dim “C”) P712 = 0.3 m

FLOWCERT INSTRUCTION MANUAL

62

To program the FlowCERT Lite for Example 3 BS3680 Weir by using the

Quick Setup menu proceed as follows. If required access the Program
Mode, key in the passcode 1997 and press ENTER. Using the ‘right’ arrow

key, go to the Quick Setup menu press ENTER and as prompted, select the
relevant option and press ENTER.

QUESTION

OPTION

PMD Type

3 = 3680 Weir

3680 Flumes

1 = Rectangular

Calculation

1 = Absolute

No. of alarms

1 = 1 Alarm

Type alarm 1

1 = High

Alarm No.1

3 = Set to relay 3

Transducer

1 = dB3

Volume units

1 = Litres

Time Units

2 = Per minute

Measurement units

1 = Metres

Empty level

1.00m

Minimum head

0.00m

Maximum head

0.40m

Totaliser enabled

1 = On

Totaliser (R)

1 = Yes

Totaliser multiplier

7 = 1000

Approach dia. (Dim A)

0.50m

Crest Width. (Dim B)

0.30m

Crest Height (Dim C)

0.30m

Programming is now complete, and the unit can now be returned to the run
mode, press CANCEL until Run Mode? Is displayed on the LCD press

ENTER, and the FlowCERT will return to Run Mode.

Important Notice

If relay setpoints do not meet the exact requirements of the application, they can

be modified to suit by pressing ENTER when, “For More Options Hit Enter”, is

displayed, and entering new values to relay setpoints as required. Alternatively,
access the setpoints by the main menu system or directly accessing the parameters.

PULSAR MEASUREMENT

63

BS3680 Rectangular Broad Crested Weir

Point of Measurement

The transducer must be above the maximum head P704 by at least the
near blanking distance P107.

The head is measured at a point 3 to 4 times the maximum head upstream
from the weir crest, to ensure the surface of the liquid is not affected by
turbulence or drawdown.

Calculations

Absolute

If the flow calculation is to be absolute P702 = 1 the flow will be calculated
using the formula: q = (2/3)

1.5

Ceb(gh3)

0.5

Where:

q = flowrate
Ce = discharge coefficient calculated by FlowCERT (P723)
b = approach width P710

g = gravitational acceleration (nominal value = 980.66 cm/s2)
h = head

FLOWCERT INSTRUCTION MANUAL

64

Ratiometric

If the flow calculation is to be ratiometric P702 = 2 the flow will be
calculated using the formula: q= q

calCe/Cecal(he/hecal

)

1.5

Where:

q = flowrate

q

cal

= flowrate at maximum head P705

Ce = discharge coefficient calculated by FlowCERT (P723)

Ce

cal

= discharge coefficient at maximum head
he = effective head
he

cal

= effective head at maximum head

PULSAR MEASUREMENT

65

Special Devices (P700 =5)

Point of Measurement

The transducer must be above the maximum head P704 by at least the
near blanking distance P107.
In the case of a Palmer Bowlus flume the point of head measurement
should be half the value of Dim “A” P710 upstream of the device.
For an H-Flume the head measurement is taken at a point downstream
from the flume entrance as detailed in the table below:

FLUME SIZE-DIM A (P710)

POINT OF MEASUREMENT

cm

feet

cm

inches

15.25

0.5

4.7

1.88

23.00

0.75

6.7

2.69

30.05

1.0

9.1

3.63

45.70

1.5

13.5

5.378

61.00

2.0

17.9

7.19

76.20

2.5

22.5

9.00

91.45

3.0

27.2

10.88

137.15

4.5

40.5

16.19

Transducer mounted
Min. blanking distance (P107)
above max. head

Point of Measurement

See table below

FLOW (q)

FLOWCERT INSTRUCTION MANUAL

66

V-notch angle weirs, the head is measured upstream of the weir plate at a
minimum distance of 3 times maximum head to ensure the surface of the
liquid is not affected by turbulence or drawdown. See Exponential devices,
above, for further details.

Calculations

Absolute

Palmer Bowlus Flume and H-Flume - If the flow calculation is to be
absolute P702 = 1 the flow will be calculated using the formula: q = f(h)

Where:

q = flowrate
f = is an 8th degree polynomial solution for h (head)

Ratiometric

Palmer Bowlus Flume and H-Flume - If the flow calculation is to be
ratiometric P702 = 2 the flow will be calculated using the formula: q= q

cal

f(h)/f(h

cal

)

Where:

q = flowrate
q

cal

= flowrate at maximum head P705
f(h) = a polynomial solution for h (head)
f(h

cal

) = a polynomial solution for h

cal

(maximum head)

V-Notch Angle Weir (Non-BS 3680)

Absolute

If the flow calculation is to be absolute P702 = 1 the flow will be calculated
using the formula: q = Ce 8/15 tan (theta/2)(2gn)

0.5

(h = kh)

2.5

Where:

q = flowrate
Ce = discharge coefficient calculated by FlowCERT (P723)
theta = V-notch angle
gn = gravitational acceleration
h = head
kh = compensated head

PULSAR MEASUREMENT

67

Ratiometric

If the flow calculation is to be ratiometric P702 = 2 the flow will be
calculated using the formula: q= q

cal

(h+kh/h

cal

+kh)

2.5

Where:

q = flowrate

q

cal

= flowrate at maximum head P705

h = head
kh = compensated head

Universal Calculations (P700=6)

Point of Measurement

The transducer must be above the maximum head P704 by at least the
near blanking distance P107.
For all Universal calculation applications, the point at which the head is
measured should be chosen such that the surface of the liquid is not
affected by turbulence.

Calculations

Absolute

Universal Head Vs Flow - If the flow calculation is to be absolute P702 = 1
the flow will be calculated using the formula: q = q(h)
Where:

q = flowrate
q(h) = flowrate for head

The desired number of Breakpoints, (P730 - P793) are to be entered in pairs
in values of head and corresponding flow. (Minimum of 2 pairs of
Breakpoints is required).

FLOWCERT INSTRUCTION MANUAL

68

CHAPTER 5 PARAMETER GUIDE

This chapter describes all the parameters in your FlowCERT, as they appear
in the menu system.

Menu System

Shown below is a set of charts to show you how all the various functions and
features can be found using the menu system.

For further details and a full description of all parameters refer to the
Parameter Listings and Descriptions section of this chapter.

Top Level Menu

Quick Setup

Application

Relays

Data Logs

OCM

Display

mA Output

Compensation

Stability

Echo Process

System

Device Comm

Test

PULSAR MEASUREMENT

69

Application Menu

Operation

Distances

P100

Mode

P101

Transducer

P104

Measurement

Units

P102

Material

P105

Empty Level

P106
Span

P107

Near Blanking

P108

Far Blanking

FLOWCERT INSTRUCTION MANUAL

70

Relays Menu

Relay 1

P210
Type

P211

Function

P212

Alarm ID

or

Pump

Group

P214

Set 2

P213
Set 1

P216

Allocat.

P217

Closures

P218

Fail Safe

P219

R1

Max.Rate

If

P210=2

Relay 2

Relay 3

Relay 4

Relay 5

P220
Type

P230
Type

P240
Type

P250
Type

P221

Function

P231

Function

P241

Function

P251

Function

P222

Alarm ID

or

Pump

Group

P232

Alarm ID

or

Pump

Group

P242

Alarm ID

or

Pump

Group

P252

Alarm ID

or

Pump

Group

P223
Set 1

P233
Set 1

P243
Set 1

P253
Set 1

P224

Set 2

P234

Set 2

P244

Set 2

P254

Set 2

P226

Allocat.

P236

Allocat.

P246

Allocat.

P256

Allocat.

P227

Closures

P237

Closures

P247

Closures

P257

Closures

P228

Fail Safe

P238

Fail Safe

P248

Fail Safe

P258

Fail Safe

P249

R4

Max.Rate

If

P240=2

P259

R5

Max.Rate

If

P250=2

P229

R2

Max.Rate

If

P220=2

P239

R3

Max.Rate

If

P230=2

P215
Set 3

As

required

P225
Set 3

As

required

P235
Set 3

As

required

P245
Set 3

As

required

P255
Set 3

As

required

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71

Data Logs Menu

Totaliser

Audit

Temperature

P460

Total Date 1

P461

Totaliser 1

P462, 464,

466, 468, 470,

472, 474, 476

Total Dates

2 to 9

P463, 465,

467, 469, 471,

473, 475, 477

Totalisers

2 to 9

P478

Total Date 10

P580

Min. Temp

P479

Totaliser 10

P581

Min. Temp.

Date

P582

Min. Temp.

Time

P583

Max. Temp.

P584

Max. Temp.

Date

P585

Max. Temp.

Time

P586

Current

Temperature

FLOWCERT INSTRUCTION MANUAL

72

OCM Menu

PMD

Setup

Dimensions

Calcs

Break

Points

Tables

Average

Flow

P700 PMD

Type

P701

Primary

Measuring

Device

P702

Calculation

P703

Minimum

Head

P704

Maximum

Head

P705

Maximum

Flow

P706

Volume

Units

P707

Time Units

P708

Flow

Decimal

P709

Flow Cutoff

P710

Dimension

“A”

P711

Dimension

“B”

P712

Dimension

“C”

P713

Dimension

“D”

P714

Roughness

Coefficient

P715

Water

Temperature

P717

Exponent

Value

P719

Parshall

Throat Width

P718

K Factor

P720
Area

P721

Calc. 1

P722

Calc. 2

P723

Calc. 3

P724

Calc. 4

P725

Calc. 5

P792
Head

Bkpt 32

P731

Flow

Bkpt. 1

P732–P791

Head

&

Flow

Bkpts.

2 to 31

P730
Head

Bkpt. 1

P793
Flow

Bkpt 32

P796

Reset

Bkpts.

P797

Number

of

Bkpts.

Set

P863

Average

Flow

P864

Average

Time

PULSAR MEASUREMENT

73

Display Menu

mA Output Menu

Range

Operation

Setpoint

Limits

Trim

Fail Safe

Allocation

P830

mA Out

Range

P831

mA Out

Mode

P834

Low

Value

P836

Low

Limit

P835

High

Value

P838

Low

mA

Trim

P840

Fail

Mode

P841

Allocation

P837

High

Limit

P839
High

mA

Trim

Options

Fail Safe

Auxiliary

P802

Display

Offset

P801

Decimal

Places

P804

Display

Conversion

P808

Fail Mode

P809

Fail Time

P810
Units

P811

Alarms

P812

Pumps

P813

Control

P814
Misc.

P800

Display

Units

Bargraph

Totaliser

P829

Bargraph

P820

Totaliser

P821

Totaliser

(R)

P822

Totaliser

Decimal

P823

Totaliser

Multiplier

P824

Totaliser

Enable

P816

Totaliser

(R)

FLOWCERT INSTRUCTION MANUAL

74

Compensation

Stability Menu

Damping

Indicator

Rate

Filters

P870

Fill

Damping

P871

Empty

Damping

P872

Fill

Indicator

P873

Empty

Indicator

P874

Rate Update

P875

Rate Time

P876

Rate Distance

P877

Rate Value

P878

Lower Cutoff

P880

Gate Mode

P881

Fixed Distance

P882

Process Filter

P884

Peak Percent

P860

Sound

Velocity

Offset

Temperature

Velocity

P851

Measurement

Offset

P852

Temperature

Source

P854

Fixed

Temperature

PULSAR MEASUREMENT

75

Echo Processing Menu

Xdr. 1 Status

P900

Xdr. 1 Status

P901

Echo

Confidence

P902

Echo Strength

P903

Average Noise

P904

Peak Noise

P905

Sensitivity

P906

Side Clearance

FLOWCERT INSTRUCTION MANUAL

76

System Menu

Passcode

Backup

System

Info

Date

&

Time

LED

Colour

Daylight

Saving

P921

Enable Code

P925

Parameter

Backup

P926

Software

Revision

P931

Date

P935

Off

Colour

P970

DST

Enable

P922

Passcode

P927

Hardware

Revision

P928

Serial

Number

P929

Site

Ident.

P930

Factory

Default

P932
Time

P933

Date

Format

P936

Alarm

Colour

P937

Pump

Colour

P938

Control

Colour

P939

Misc.

Colour

P971

DST

Difference

P972

DST

Start Time

P973

Start Day

P974

Start Week

P975

Start

Month

P976

DST

End Time

P977

End Day

P978

End Week

P979

End Month

PULSAR MEASUREMENT

77

Device Comm Menu

RS485 Setup

(Optional)

If Comms.

Type is

Modbus

P130

Device

Mode

P131

Protocol

P132

Device

Addr.

P133

Device

Baud

RS232

Setup

P61

Comms Baud

Remote

Alarm

P144

Call Type

P145

Tel. No. 1

P146

Tel. No. 2

P147

Tel. No. 3

P134

Parity

P135

Stop Bit

P136

Data

Format

P137

Delay in

milli sec.

If Comms.

Type is

Profibus

P132

Device

Addr.

P143

Addr. Lock

FLOWCERT INSTRUCTION MANUAL

78

Test Menu

Simulation

P980

Simulate

P981

Increment

Hardware

P990

Self-Test

P991

Hard Test

P992

mA Out Test

P993

mA In Test

P994

Xdr. Test

P982

Rate

P983

Start Level

P984

Inc. Change

PULSAR MEASUREMENT

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CHAPTER 6 PARAMETER LISTING AND DESCRIPTION

Application Parameters

Operation

P100 Mode of Operation

This parameter sets the mode of operation, when in run mode, and can be
set to one of the following:

OPTION

DESCRIPTION

1 = Distance (Default)

Display shows the distance from the transducer face
to the surface of the material measured.

2 = Level

Shows how full a vessel is.

3 = Space

Shows how empty a vessel is.

4 = OCM Head

Display shows how high the head is.

5 = OCM Flow

Display shows the instantaneous flow.

P101 Xducer (Transducer)

This parameter should be set to the transducer being used with the unit, and
can be set to one of the following:

OPTION

DESCRIPTION

1 = dB3 (Default)

Transducer is a dB3. Range = 0 to 3.00 metres

2 = dB6

Transducer is a dB6. Range = 0.3 to 6.00 metres

3 = dB10

Transducer is a dB10. Range = 0.3 to 10 metres

4 = dB15

Transducer is a dB15. Range = 0.5 to 15.00 metres

7 = dBS6

Transducer is a dBS6. Range = 0.2 to 6.00 metres

8 = dBMach3

Transducer is a dBMach3. Range 0.3 to 1.50 metres

*11 = dBR16

Transducer is a mmWAVE radar. Range = 0.077 to 16 metres

*12 = dBR8

Transducer is a mmWAVE radar. Range = 0.077 to 8 metres

Important Notice

*Please consult your local Pulsar distributor for the versions of firmware that the
mmWAVE radars are available in.

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P102 Material

This parameter should be set to the type of material being monitored.

OPTION

DESCRIPTION

1 = Liquid (Default)

Used for liquids and flat solid materials.

2 = Solid

Used for sold material that is heaped or at an angle.

3 = Closed Tank

Use for applications within a closed tank or where a
secondary echo response may become focused to
create a larger echo than the first.

Dimensions

P104 Measurement Units

This parameter sets the units you want to use for programming and display.

OPTION

DESCRIPTION

1 = metres (Default)

All units of measurement are Metres

2 = cm

All units of measurement are Centimetres

3 = mm

All units of measurement are Millimetres

4 = feet

All units of measurement are Feet

5 = inches

All units of measurement are Inches

P105 Empty Level

This parameter is to be set to the maximum distance from the face of the
transducer to the empty point, in P104 Measurement Units. Note this
value affects span as well, (see the following important information notices),
so should be set before span.

Important Notice

When changing the Empty Distance (P105) you can also recalculate the values
for the Span so that it equals the empty distance (P105) minus Near Blanking
(P107) and the Relay Setpoints, so that they remain at the same percentage
values of the empty distance as they were before you changed the empty distance
(P105). You’ll be asked the question “Recalculate Span?” Yes (enter 1), Span is
then recalculated. Any other answer will leave the span at its original value.
You’ll then be asked if you want to “Recalculate Setpoints?”, if you choose yes
(enter 1), all Relay Setpoints will be recalculated as a % of the new empty
distance. Any other answer will leave the setpoints at their original values.

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P106 Span

This parameter should be set to the maximum distance from the Empty
Level (P105) to the maximum material level. It is automatically set to be

equal to the Empty Level (P105) less the Near Blanking distance (P107)
when you set the empty level.

P107 Span

This parameter is the distance from the face of the transducer that is not
measurable and is pre-set to the minimum value dependant on the
Transducer (P101) selected. It should not be set to less than this figure, but
can be increased, typically to ignore close in obstructions.

TRANSDUCER

NEAR BLANKING DISTANCE

P101 = dBMach3

Default blanking distance = 0.00 metres

P101 = dB3

Default blanking distance = 0.125 metres

P101 = dB6

Default blanking distance = 0.30 metres

P101 = dB10

Default blanking distance = 0.30 metres

P101 = dB15

Default blanking distance = 0.50 metres

P101 = dBS6

Default blanking distance = 0.20 metres

P101 = dBR16

Default blanking distance = *0.077 metres

P101 = dBR8

Default blanking distance = *0.077 metres

*The signal emanates from the curved face of the radar, but for the purposes
of measurement it is taken from the drip shield.

P108 Far Blanking Distance

This is the distance (as a percentage of the empty level P105) beyond the
empty point that the unit will be able to measure, and by default is pre-set
to 20% of the empty level.

If the surface being monitored can be extended beyond the empty level
(P105) then the far blanking distance can be increased to a max. of 100% of
the empty level, provided it does not exceed the max range of the
transducer being used. This parameter is always entered as a % of the
empty level.

Important Notice

When using the dB Mach 3 the empty distance is measured from the end of the
horn to the empty point in P104 Measurement Units.

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Relay Parameters

All relay related parameters are prefixed with a 2**.
The second digit of the three-figure parameter number denotes the relay

number as follows:

21* parameters for Relay 1
22* parameters for Relay 2
23* parameters for Relay 3
24* parameters for Relay 4
25* parameters for Relay 5

The third digit selects specific parameter for the setting of the relays, which
can be selected individually and results in the following parameter numbers
for each relay:

Relay 1 210 to 218
Relay 2 220 to 228
Relay 3 230 to 238
Relay 4 240 to 238
Relay 5 250 to 238

P210, 220, 230, 240, 250 - Relay Type

This parameter defines what type each relay should be, see the table below
for available options:

OPTION

DESCRIPTION

0 = Not in use (Default)

Relay is not in use or programmed and the LED will
always be off.

1 = Alarm

Relay is programmed as an alarm relay, which will de-
energise ON, and energise OFF. This will ensure an
alarm is raised if the power fails to the unit.

2 = Pump

Relay is programmed as a pump relay, which will
energise ON, and de-energise OFF.

3 = Control

Relay is programmed as a control relay, which will
energise ON, and de-energise OFF.

4 = Miscellaneous

Relay is programmed as a miscellaneous relay, which will
energise ON, and de-energise OFF.

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Alarms

P210, 220, 230, 240, 250 = 1 (Alarm)
The second parameter for each relay determines the function of the alarm.

P211, 221, 231, 241, 251 – Relay Function

OPTION

DESCRIPTION

0 = Off (Default)

Relay will not operate.

1 = Level

Alarm is based on the level in the vessel, and the type of
level alarm (P212, 222, 232, 242, 252) and two setpoints
must be set (P2b3, 223, 233, 243, 253 & 214, 224, 234, 244,

254). Setpoints are entered in display units or % of span as
referenced to empty level.

2 = Rate of Change

Alarm is based on the rate of change of level in the vessel,
and the type of rate of change alarm (212, 222, 232, 242,

252), and two setpoints must be set (213, 223, 233, 243, 253
& 214, 224, 234, 244, 254). Setpoints are entered in Display
Units per minute or % of span per minute and a negative
value should be entered for a Rate Alarm on a de-creasing
level, and a positive value for an increasing level.

3 = Temperature

Alarm is based on the temperature, and the type of
temperature alarm (P212, 222, 232, 242, 252) and two
setpoints must be set (P213, 223, 233, 243, 253 & P214,
224, 234, 244, 254). The temperature used depends on the
temperature source selected (P852). Setpoints are entered in

o

C.

4 = Loss of Echo

Alarm is raised if the Failsafe Timer (P809) expires. No
setpoints are required.

5 = Loss of Clock

Alarm is raised if the expires. No setpoints are required.

13 = Loss of Comms

Alarm is raised if there is a comms failure. No setpoints are
required. Available in firmware version 7.5.0 and greater

Important Notice

The Loss of Echo, Loss of Clock and Loss of Comms will also be shown on the
display as “Lost Echo”, Lost Clock” and Lost Comm” respectively.

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The third parameter for each relay determines the Alarm ID for the relay
you wish to set.

P212, 222, 232, 242, 252 – Relay Alarm ID

When P211, 221, 231, 241, 251 =4 (Loss of Echo) or 5 (Loss of Clock)
This parameter has no function and will not be displayed.

P211, 221, 231, 241, 251 = 1 (Level), 2 = Rate of Change or 3 (Temp)
This parameter defines which alarm type, or identification, the relay should

respond to, as follows:

OPTION

DESCRIPTION

SETPOINTS

1 = General (Default)

Relay goes “ON” when the

value reaches the ON

setpoint and goes “OFF”

when the value reaches the
OFF setpoint.

P213, 223, 233 is ON
Setpoint.
P214, 224, 234 is OFF
Setpoint

2 = High

Relay goes “ON” when the

value rises to the ON

setpoint and goes “OFF”

when the value lowers to
the OFF setpoint.

ON> OFF Relay Setpoints
P213, 223, 233 and P214,
224, 234
Setpoints, can be set in
any order as the unit

‘knows’ that you are

setting a high-level
alarm.

3 = HiHi

Same as 2 = High, but different identifier

4 = Low

Relay goes “ON” when the

value lowers to the ON

setpoint and goes “OFF”

when the value rises to the
OFF setpoint.

ON<OFF Relay Setpoints
P213, 223, 233 and P214,
224, 234. Setpoints, can
be set in any order as the

unit ‘knows’ that you are

setting a low-level alarm.

5 = LoLo

Same as 4 = Low, but different identifier

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OPTION

DESCRIPTION

SETPOINTS

6 = In bounds

Relay goes “ON” if value is

inside the zone between
the two setpoints.

Relay Setpoints, P213,
223, 233 and P214, 224,
234 can be set in any
order as the unit ‘knows’
that you are setting an
inbounds alarm.

7 = Out of bounds

Relay goes “ON” if value is

outside the zone between
the two setpoints.

Relay Setpoints P213,
223, 233 and P214, 224,
234 can be set in any

order as the unit ‘knows’

that you are setting an
out of bounds alarm.

The fourth parameter and the fifth parameter for each relay set the Alarm

“ON” and “OFF” points. For a high alarm, the “ON” is set higher than
“OFF”. For low alarm then “ON” is set lower than “OFF”. See the

appropriate alarm ID, table (P212, 222, 232) for further information.

When P211, 221, 231, 241, 251 = 4 (Loss of Echo) or 5 (loss of Clock)

This parameter has no function and will not be displayed.

When P211, 221, 231, 241, 251 = 1 (Level), 2 (Rate of Change), 3 (Temp),
11 (Flow) or 12 (Velocity).

P213, 223, 233, 243, 253 – Relay Setpoint 1

Determines the ‘ON’ or ‘OFF’ point for the alarm according to the ID
selected.

P214, 224, 234, 244, 254 – Relay Setpoint 2

Determines the ‘ON’ or ‘OFF’ point for the alarm according to the ID
selected.

To set figures in % press the hotkey to show and enter % figure,
relative to empty level.

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Important Notice

Setpoints are entered in values according to the function selected.
Level - entered in Display Units or % of span as referenced to Empty Level.

Rate of Change - entered in Display Units per minute or % of span per minute.

For an alarm on an increasing level enter setpoints as a positive value, for an
alarm on a decreasing level enter setpoints as a negative value.
Temperature - entered in ºC.

See the appropriate alarm function, table (P211, 221, 231, 241 and 251) for
further information.

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Pumps

P210, 220, 230, 240, 250 = 2 (Pump)

When a relay is being used for a pump function, the second parameter determines the pump duty that will be used to determine the operating cycle.

P211, 221, 231, 241, 251 – Relay Function

This parameter defines which pump duty the relay should respond to as
follows:

PUMP DUTY

DESCRIPTION

0 = Off (Default)

Relay is always de-energised

1 = Fixed duty assist

All pumps are used to assist each other (run at
the same time) and each pump has its own
setpoints. (P213, 223, 233, 243, 253 & P214, 224,
234, 244, 254).

2 = Fixed duty backup

If a pump fails to meet the demand (due to
malfunction, intake blockage etc.), then it is
stopped, and another pump shall take over. Each
pump has its own setpoints. (P213, 223, 233,
243, 253 & P214, 224, 234, 244, 254).

3 = Alternate duty assist

All pumps are used to assist each other (run at
the same time). Each pump has its own
setpoints, (P213, 223, 233, 243, 253 & P214, 224,
234, 244, 254) but each time all pumps have
stopped, the setpoints are sequentially rotated
between the pumps to ensure equal pump use.

4 = Alternate duty backup

If a pump fails to meet the demand (due to
malfunction, intake blockage etc.), then it is
stopped, and another pump shall take over. Each
pump has its own setpoints, (P213, 223, 233,
243, 253 & P214, 224, 234, 244, 254) but each
time all pumps have stopped, then the setpoints
are sequentially rotated between the pumps to
ensure equal pump use.

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PUMP DUTY

DESCRIPTION

5 = Duty backup and assist

First pump comes on, if it cannot cope, it goes
off and next pump comes on (duty backup). This
continues until the last pump comes on and if it
cannot cope the first pump comes back on to
assist the last pump (duty assist) if the level
continues to rise all other pumps will come on
(assist) in turn until the level decreases to the
pump off points. Each pump has its own
setpoints, (P213, 223, 233, 243, 253 & P214, 224,
234, 243, 253).

6 = Service ratio duty assist

All pumps are used to assist each other (run at
the same time) and each pump has its own
setpoints (P213, 223, 233, 243, 253 & P214, 224,
234, 244, 254). And a service ratio setting. The
third setpoint (P215, 225, 235, 245, 255) is used
to set the service ratio. Each time a pump is
required to start then the pump with the least
running hours (with respect to the service ratio)
is started (i.e. the setpoints are re-assigned
accordingly). For example, if two pumps A and B
have the service ratio set to 2 and 1 respectively,
then pump A will operate for twice as many
hours as pump B.

7 = Service ratio duty
backup

If a pump fails to meet the demand (due to
malfunction, intake blockage and so on), then it
is stopped, and another pump shall take over.
Each time a pump is required to start then the
pump with the least running hours (with respect
to the service ratio) is started (i.e. the setpoints
are re-assigned accordingly). Each pump has its
own setpoints (P213, 223, 233, 243, 253 & P214,
224, 234, 244, 254). The third setpoint (P215,
225, 235, 245, 255) is used to set the service
ratio. For example, if two pumps A and B have
the service ratio set to 2 and 1 respectively, then
pump A will operate for twice as many hours as
pump B.

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PUMP DUTY

DESCRIPTION

8 = First On First Off
Alternate duty assist

The first pump switched on is the first pump to
be switched off, etc. regardless of the set points,
so the setpoints are dynamically changed to
enable this.

9 = Service Ratio Standby

When a service ratio duty is being used, on all
other pumps in use, the standby pump can be
started on a ratio basis only, when it will assume
the setpoints of the next pump to start. The third
setpoint (P215, 225, 235, 245, 255) is used to set
the service ratio.

10 = Two Pump Sets

There are four pumps. Two rotate their start-up
sequence with each other. If the two pumps
cannot keep up, the level rise to the setpoints of
the other two pumps which take over and rotate
their sequence with each other.

The third parameter for each relay determines the pump group. You can
have two groups of pumps, and all similar duties within that group will
operate together.

P212, 222, 232, 242, 252 – Relay Pump Group

By default, all pump groups are set to 1, but if you want to have another
group, then set this parameter to 2, for each pump relay that should operate
together as part of a second group.

Important Notice

The pumps are started and stopped at the “ON” and “OFF” setpoints. To
pump down (reduce level) then set “ON” higher than “OFF”. To pump up
(increase level) then set “ON” lower than “OFF”.

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The fourth parameter and the fifth parameter for each relay set the pump
“ON” and “OFF” points, which are entered in Measurement units P104. For

pump down the “ON” is set higher than “OFF”. For pump up then “ON” is

set lower than “OFF”. See the appropriate pump duty, function table
(P212, 222, 232, 242, 252) for further information.

P213, 223, 233, 243, 253 – Relay Setpoint 1

This parameter determines the ‘ON’ point of the pump.

P214, 224, 234, 244, 254 – Relay Setpoint 2

This parameter determines the ‘OFF’ point of the pump.

The sixth parameter will determine the service ratio that will be used to
switch the pump, when pump duty selected is a Service Ratio duty.

P215, 225, 235, 245, 255 – Relay Setpoint 3

This parameter determines the Service Ratio in values of %. See the
appropriate pump duty function, table (P211, 221, 231, 241, 251), for
further information.

P219, 229, 239, 249, 259 – Relay Max Rate

This parameter will allow a pump to be switched at a pre-determined Rate
of change of Level, irrespective of the “ON” level setpoint P213, 223, 233,
243, 253. Once a pump relay has been switched “ON” by the pre-determined
Rate of Change, it will remain energised until the level reaches the “OFF”

level setpoint P214, 224, 234, 244, 254.
Max. Rate is entered in Measurement Units (P104) per minute and can be

entered as either positive (increasing level) or negative (decreasing level)
values.

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Control

P210, 220, 230, 240, 250 = 3 (Control)

When a relay is being set up as a control relay, the second parameter that
will be displayed in the menu determines its function.

P211, 221, 231, 241, 251 – Relay Function

This function allows the relay to be assigned to specific control functions
(other than pumps and alarms) several of these functions work in relation to
time.

This can be used to activate devices based on elapsed time or running
cycles, such as a timed rake control to keep a ram lubricated if idle for long
periods, or flush valve operation.

PUMP DUTY

DESCRIPTION

0 = Off (Default)

Relay is always de-energised

1 = Time

Relay will energise “ON” after the Cycle time that is set
in Relay Setpoint 2 (P214, 224, 234, 244, 254). And
turns “OFF”, de-energises, after the On-Time Period
that is set in Relay Setpoint 1 (P213, 223, 233, 243, 253)

2 = Step Time

Step Time Control allows relays to be used to control a
device, such as a motorised valve or gate, in order to
maintain the level within two predetermined points.
Relays will energise “ON” when Step Time condition is
in effect and de-energises “OFF” when Step Time goes
off. One relay will be required to control an increase in

level, (‘open’ the device) and a second relay is required

to control a decrease in level, (‘close’ the device). Alarm
ID (P212, 222, 232, 242, 252) is used to assign the relay

to control either the open or close condition. Step Time
Control relay requires three setpoints. The first set point
(P213, 223, 233, 243, 253) determines the level, at
which the relay is to be activated, (N.B. level setpoint for
open relay, increase the level, must be lower than the
setpoint for the close relay, decrease the level). The
relay will energise “ON” after the Limit time that is set
in Relay Setpoint 3 (P215, 225, 235, 245, 255). And
turns “OFF”, de-energises, after the Drive Period that
is set in Relay Setpoint 2 (P214, 224, 234, 244, 254).

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The third parameter for each relay determines the assignment or
condition of the relay, where required.

P212, 222, 232, 242, 252 – Relay Alarm ID/Pump Group

P211, 221, 231, 241, 251 = 2 (Step Time)

If the relay is selected for Step Time, then this parameter is used to assign
the relay to the 0 = Open condition (increase level) or 1 = Close condition
(decrease level).

The fourth parameter, fifth parameter and sixth parameter are set to
determine the switch points, “ON” and “OFF” for the relay and where
required the order of start. See control function, table (P211, 221, 231,
241, 251) for further information.

P213, 223, 233, 243, 253 – Relay Setpoint 1

P211, 221, 231, 241, 251 = 1 (Time)

This parameter determines the “Time Period” that the relay will remain “ON”.
Relay Setpoints are entered in Minutes. See the appropriate relay function

tables (P211, 221, 231, 241, 251) for further information.

P211, 2210, 231, 241, 251 = 2 (Step Time)

Relay Setpoint 1 is entered in values of Measurement Units (P104)
See the appropriate relay function tables (P211, 221, 231, 241, 251) for

further information.

P214, 224, 234, 244, 254 – Relay Setpoint 2

P211, 221, 231, 241, 251 = 1 (Time)

This parameter determines the “Cycle Time” for the operation of the relay.
See the appropriate relay function tables (P211, 221, 231, 241, 251) for

further information.

P211, 2210, 231, 241, 251 = 2 (Step Time)

Relay Setpoints are entered in Seconds to set Drive Period, the time that the
relay will remain ‘ON’.

See the appropriate relay Function tables (P211, 221, 231, 241, 251) for
further information.

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P215, 225, 235, 245, 255 – Relay Setpoint 3

P211, 221, 231, 241, 251 = 2 (Step Time)

This parameter is used to determine the Limit Time between each Drive
Period. Relay Setpoints are entered in Minutes, during which time the relay
will remain ‘OFF’.

See the appropriate relay Function tables (P211, 221, 231, 241, 251) for
further information.

Miscellaneous

P210, 220, 230, 240, 250 = 4 (Miscellaneous)

When a relay is set to be a miscellaneous relay, the second parameter determines its function.

P211, 221, 231, 241, 251 – Relay Function

This function allows the relay to work in relation to a clock or a specific event
and will be set to activate in relation to Real Time.

PUMP DUTY

DESCRIPTION

0 = Off (Default)

Relay is always de-energised

1 = Clock

Relay will energise ON at a specified time each day as set
in Relay Setpoint 1 (P213, 223, 233, 243, 253). And turns
OFF, de-energises, after the specified-On Time period as
set in Relay Setpoint 2 (P214, 224, 234, 244, 254).

2 = Totaliser

Relay will energise ON momentarily each time the
specified volume has passed as set in Relay setpoint 1
(P213, 223, 233, 243, 253), this parameter sets the
multiplication factor which will be applied to the on board
totaliser (P820) to determine the switch point of the relay.
E.g. if the totaliser is set to totalise in cubic metres and
the relay is required to provide a closure every 10,000
litres Relay setpoint 1 would be set to 10. Relay setpoint
2 (P214, 224, 234, 244, 254) is used to select the time the
relay will remain closed in seconds.

Important Notice

The pumps are started and stopped at the “ON” and “OFF” setpoints. To
pump down (reduce level) then set “ON” higher than “OFF”. To pump up
(increase level) then set “ON” lower than “OFF”.

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The third parameter has no function when miscellaneous relay is chosen
and will not be displayed.

The fourth parameter, and fifth parameter, are set to determine the switch
points, “ON” and “OFF” for the relay. See miscellaneous function table
(P211, 221, 231, 241, 251) for further information.

P210, 220, 230, 240, 250 = 1 (Clock)

P213, 223, 233, 243, 253– Relay Setpoint 1

Relay Setpoints are entered in Hours & Minutes (HH:MM) to set Time at
which relay will energise. Default = 00:00 (HH:MM)

P214, 224, 234, 244, 254– Relay Setpoint 2

Relay Setpoints are entered in seconds to set the time period that the relay

will remain ‘ON’. Default = 0.00 secs.

P210, 220, 230, 240, 250 = 2 (Totaliser)

P213, 223, 233, 243, 253– Relay Setpoint 1

Relay Setpoints are entered as a factor by which the on board totaliser (P820) should be multiplied by to provide a relay closure. Default = 0.00

P214, 224, 234, 244, 254– Relay Setpoint 2

Relay Setpoints are entered in seconds to set the time period that the relay
will remain ‘ON’. Default = 0.00 secs.

P219, 229, 239, 249, 259 – Relay Max Rate

This parameter will allow a pump to be switched at a pre-determined Rate
of change of Level, irrespective of the “ON” level setpoint P213, 223, 233,
243, 253. Once a pump relay has been switched “ON” by the pre-determined
Rate of Change, it will remain energised until the level reaches the “OFF”

level setpoint P214, 224, 234, 244, 254.
Max. Rate is entered in Measurement Units (P104) per minute and can be

entered as either positive (increasing level) or negative (decreasing level)
values.

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Common Relay parameters

P216, 226, 236, 246, 256 – Relay Allocation

This parameter determines which input the relay will act on. You can set it to
the transducer (default), or the optional auxiliary (current) input, or an
average of the two. In most cases, this will not need to be changed from the
default.

OPTION

DESCRIPTION

1 = Xducer 1 (Default)

Relay acts on Xducer 1 calculated values

P217, 227, 237, 247, 257 – Relay Closures

The FlowCERT will record how many times each relay is closed, this
parameter displays the number of times the relay has activated since the
relay has been in use. It can be reset with any value.

P218, 228, 238, 248, 258 – Relay Fail Safe

The FlowCERT has a general fail-safe parameter P808. However, this can be
overridden so that each individual relay has its own independent fail-safe
mode.

This parameter determines what the relay will do in the event of the Failsafe

Time (P809) expiring.

OPTION

DESCRIPTION

0 = Default

Relay assumes system default mode set in P808

1 = Hold

Relay remains in its current state

2 = De-energise

Relay will De-energise

3 = Energise

Relay will energise

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Data Log parameters

The data log parameters contain the following information:

Totaliser Audits

P460 to P479 Total Audits

Parameters P460-P479 show the date and total flow for the last ten days,
the first on the list are the most recent and last ones are the oldest. When all
ten total audits are full the oldest is pushed out and all totals increment
through to allow the new days total to be registered in the first day’s total
audit parameter allocation.

P480 Clear Logs

This parameter enables all of the Total Audits (P460 – P479) to be cleared to
factory default values.

Temperature

The following parameters give information on temperature conditions seen
by the Temperature source (P852) in ºC. All of these parameters are read
only and cannot be changed, though if P852 is changed they will be reset.

P580 Minimum Temperature

This parameter displays the minimum temperature recorded.

P581 Minimum Temperature Date

This parameter displays the date when the minimum temperature was
recorded.

P582 Minimum Temperature Time

This parameter displays the time when the minimum temperature was
recorded.

P583 Maximum Temperature

This parameter displays the maximum temperature recorded.

Important Notice

The pumps are started and stopped at the “ON” and “OFF” setpoints. To
pump down (reduce level) then set “ON” higher than “OFF”. To pump up
(increase level) then set “ON” lower than “OFF”.

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P584 Maximum Temperature Date

This parameter displays the date when the maximum temperature was
recorded.

P585 Maximum Temperature Time

This parameter displays the time when the maximum temperature was
recorded.

P585 Current Temperature

This parameter displays the current temperature.

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OCM Parameters

PMD Setup

P700 Primary Measuring Device Type

This parameter is used to select the type of Primary Measuring Device and
enable additional parameters required to calculate the flow of the particular
Primary Measuring Device chosen (P701). Options are as follows:

0 = Off (Default)

1 = Exponent
2 = BS3680 Flume
3 = BS3680 Weir
4 = Area/Velocity
5 = Special
6 = Universal

P701 Primary Measuring Device

Enter the Primary Measuring Device used:

If P700 = 1 Exponent

1 = Suppressed Rectangular Weir
2 = Trapezoidal (Cipolletti) Weir
3 = Venturi Flume
4 = Parshall Flume
5 = Leopold Lagco Flume
6 = V-Notch Weir
7 = Others

8 = Rectangular Weir with End contractions

If P700 = 2 BS3680 Flume

1 = Rectangular
2 = Rectangular with hump
3 = U-throated
4 = U-throated with hump

If P700 = 3 BS3680 Weir

PULSAR MEASUREMENT

99

1 = Rectangular
2 = V-Notch Full 90 degree (full 90°)
3 = V-Notch 53 degree 8’ (half 90°)
4 = V-Notch 28 degree 4’ (quarter 90°)
5 = Broad Crested (Rectangular) Weir

If P700 = 5 Special

1 = Palmer Bowlus Flume
2 = H-Flume
3 = V-Notch angle (other than BS3680)

If P700 = 6 Universal

Where the Primary Measuring device does not match any of the devices
contained in the above categories then a universal volume calculation can
be performed. A head Vs flow chart is used, to enter a number of
Breakpoints for head and flowrate (P730-793), which is either provided by
the manufacturer or created based on the dimensions of the device.

1 = Universal Linear calculation
2 = Universal Curved flow calculation

P702 Calculation

Select the required calculation method, both will give the same answer, but
the difference is the information required to complete the calculation. For
ratiometric it is normally sufficient to know the maximum flow at the
maximum head. Choose between:

1 = Absolute
2 = Ratiometric (Default)

P703 Minimum Head

This parameter is used to enter the distance, above empty, that represents
zero head and flow. This feature is used in Primary Measuring Devices

where the zero reference is at a higher level than the channel bottom, at the
point of measure. Enter distance in Measurement Units P104.

FLOWCERT INSTRUCTION MANUAL

100

P704 Maximum Head

Enter the head value that represents maximum flow, enter in
Measurement Units P104.

Note any change to the value of this parameter will be reflected in P106
(Span) and vice versa.

P705 Maximum Flow

When P702 = 2 Ratiometric enter the flow rate value that occurs at
maximum head (P704), enter in volume units (P706) per time units

(P707).
When P702 = 1 Absolute, and all relevant flow parameters have been

entered, the maximum flow that occurs at maximum head P704 will be
calculated, after the unit is returned to RUN mode, and displayed in this
parameter in volume units (P706) per time units (P707).