Greyline Instruments AVFM-II Bedienungsanleitung

USER’S GUIDE

Installation & Operation

Instructions

Area-Velocity Flow Meter

Model AVFM-II

Manual Series A.10

Note: This page has been left blank intentionally.

IMPORTANT NOTE: This instrument is manufactured and calibrated to meet product specifications.

Please read this manual carefully before installation and operation. Any unauthorized repairs or

modifications may result in a suspension of the warranty.

Available in Adobe Acrobat pdf format

Page 3

AVFM-II Area-Velocity Flow Meter

Manual Series A.10

INDEX

Function Test ·····················································4

Connections ······················································4

Keypad System ···················································4

Menu - Flow Chart·················································5

Run·····························································7

Totalizer ························································8

Password ························································8

Units / Mode ·····················································9

Calibration - for Open Channel Flow··································12

Sensor Cleaning Instructions ········································24

Relay Parameters ·················································14

Special Functions ·················································15

Sensor Location ··················································17

Enclosure Installation··············································21

Field Troubleshooting ·············································23

Sensor Cleaning Instructions ········································24

Applications Hotline ··············································25

Product Return Procedure ··········································26

Warranty ·······················································27

Appendix A - Options ·············································28

Data Logger ·····················································34

RS232C Serial Output ·············································40

Conversion Guide ················································42

Specifications····················································43

INTRODUCTION:

The Greyline AVFM-II Area Velocity Flow Meter measures open channel flow in pipes and other

channels. Flow calculation is based on the formula: Q = V x A. Q is flow, V is velocity, and A is the

cross-sectional area of flow volume in the pipe or channel.

The AVFM-II measures both level and velocity continuously. Level readings plus the user-entered

diameter or channel width are used to calculate the cross-sectional area. Combined with velocity

readings the AVFM-II measures the flow rate.

FUNCTION TEST:

Connect the sensor to the TDCR terminals as shown below, then

apply power. Allow 30 seconds for the AVFM-II to initialize.

A. Place QZ02L sensor (flat to the bottom) in a bucket of

water about 6” deep and select Level mode (from

UNITS/MODE menu) to see a level reading.

B. Select Velocity mode and stir the water to see a

velocity reading.

CONNECTIONS:

POWER INPUT: The standard model

requires AC power input between

100-130VAC 50/60Hz (2 amp fuse is

recommended). No adjustments are

necessary for any voltage in this range.

Optional 230VAC requires power

input between 200-260VAC 50/60Hz.

(See OPTIONS section of this manual

for connection of optional 9-36VDC

power input).

IMPORTANT NOTE: To comply with

CSA/NRTL standards, AC power

input and relay connection wires must

have conduit entry to the instrument

enclosure.

Manual Series A.10

AVFM-II Area-Velocity Flow Meter

Page 4

BAD

GOOD

LNGAC

IMPORTANT:

MUST CONNECT TO A

GOOD GROUND (<1 Ohm)

WITH 12 AWG CONDUCTOR

100-130VAC (50/60 Hz)

OPTIONAL:

200-260VAC (50/60 Hz)

***

N.O CN.C N.O CN.C

RELAY 1 RELAY 2

RX PU GND TX

RS 232

4 - 20

FLOW

4 - 20

VLCTY

GROUND STUD

IMPORTANT:

ATTACH ALL CABLE

SHIELDS (SENSOR

AND 4-20mA)

THIS END ONLY

TDCR.3

TDCR.1 TDCR.2

WHT

STRIPE

GRN

STRIPE

(VELOCITY)

NO STRIPE

(LEVEL)

4 - 20

LEVEL

KEYPAD SYSTEM

The AVFM-II has a simple 3-button

calibration system. Operating and

calibration modes are shown on the

16-digit alphanumeric display. The

keypad is used to move around the

menu to calibrate the AVFM-II, and to

view operating mode and functions. A

beep is sounded as each key is pressed.

If the keypad is not used for 2 minutes,

the AVFM-II will automatically go to

RUN mode (scrolling display). Use the

keypad to explore the Menu and

become familiar with its features.

MENU - FLOW CHART

The following diagram shows part of the AVFM-II Menu system. Arrows show the three directions to

leave a box. Pressing a corresponding keypad arrow will move to the next box in the direction shown.

Move the cursor (or underline) under numerals to increase or decrease the number with the ÈÇkeys.

At the bottom of each Menu column is a Store? Yes box. To store the calibration values permanently

(even through power failure), move the cursor under Yes and press the Èor Çkey. If the Èkey is

pressed with the cursor under Store?no changes will be stored and the system will return to the top of

the Menu column.

AVFM-II Area-Velocity Flow Meter

Manual Series A.10

Page 5

PASSWORD: 00

OPTIONAL FEATURES

RUN

24 HR LOG

Jan 01/2000 ->

Daily TOTAL

Daily AVERAGE

Daily MAX Flow

MAX Flow TIME

Daily MIN Flow

MIN Flow TIME

Dec 31/1999 ->

255 Days

- no more data -

AVFM-II - CALIBRATION MENU

Velocity:0.00ft/s

Level: 0.000 ft

CALIBRATION

DATA LOGGING

Log Site ID 1

Session No 1

Formtd Trend LVT

RUN STOP Setup

StartJan 01/2000

Start 03:02:16

Interval: 24 Hrs

Interval: 12 Hrs

Interval: 1 Hrs

Time Event

HiAlm LoAlm

At: 5.0 ft3/s

StartJan 01/2000

Start 03:02:16

Interval: 8 Hrs

Interval: 4 Hrs

Interval: 30 Sec

Interval: 10 Sec

Interval: 5 Sec

Interval: 2 Sec

Interval: 1 Sec

Interval: 30 Min

Interval: 10 Min

Interval: 5 Min

Interval: 2 Min

Interval: 1 Min

*** STORING ***

Reset Log? Yes

26640 Hrs Left

Store? Yes

WrapAround? Yes

Store? Yes

CHANNEL SETUP

Round

Width Width

UNITS/MODE

ft in m cm

Range

Store? Yes

ft3 USG USMG IG IMG m3 L

s min hr d

Chan ID

Square

Level Flow Velocity

Trapezd

Slope

Egg

Height MaxV 10.00 ft/s

MaxF 10.000 ft3/s

MinRg 1.333 ft

MaxRg 32.00 ft

Damping 20 %

Store? Yes

MaxLvl 3.000 ft

MinLvl 0.125 ft

Relays:1 2

Tot:

SC v

EC 8

SPECIAL FUNCTION

AVFMII V 2.86

RELAY PARAMETERS

Pulse

R1 Function Off

R1on 0.00 ft3

Flow

R1 on 0.00 ft3/s

R1 OFF 0.00 ft3/s

R1 LOE Off On

Store? Yes

Hold Tag 01

Date May 31/1999

Time 23:39:51

View Codes? Yes

1234567890123456

LOE Time 30 s

Reset Tot? Yes

Temp 20.3 Cº

Min Temp 20.0 Cº

Max Temp 23.0 Cº

DISPLAY C Fºº

Cal Const

Velocity Level

Flow Velocity

R1 on 0.00 ft

R1 OFF 0.00 ft

Pulse

R2 Function Off

R2on 0.00 ft3

R2 on 0.00 ft3/s

R2 OFF 0.00 ft3/s

R2 LOE Off On Hold

Level

R2 on 0.00 ft

R2 OFF 0.00 ft

ISB?: No Yes

Defaults? Yes

Simul 0.00%

New Password: 00

Com 96 192

Store? Yes

LvlOFFSET 0.000ft

RUN

A scrolling display shows the units selected from the UNITS/MODE

column, the maximum value in the mode being displayed (Level,

Flow or Velocity), the Totalizer value, and the logging status if

that option is enabled.

LEVEL READING

From RUN use Èto view Level. View the level of fluid measured by the instrument.

VELOCITY READING

From RUN use ÈÈ to view Velocity. View the velocity of fluid measured by the instrument.

ECHO CONFIDENCE - Level

From RUN use ÈÈÈ to view Echo Confidence, EC. This indicator

displays the echo strength for the level measurement.

SIGNAL CONFIDENCE - Velocity

From Run use ÈÈÈÈ to view Signal Confidence, SC. This indicates

consistent or widely varying flow rates and helps gauge the quality of the

velocity signal in the application.

AVFM-II Area-Velocity Flow Meter

Manual Series A.10

Page 7

Current

Signal Confidence

Arrow

Current

Echo Strength

Arrow

Minimum

Marker

EC 8

PASSWORD: 00

RUN

Velocity:0.00ft/s

Level: 0.000 ft

Relays:1 2

Tot:

SC v

EC 8

TOTALIZER

From RUN use Èor Çkeys to display Tot: value. The Totalizer value is updated every 2 seconds

with flow volume > 1 litre (0.264 USG). The display will show up to 10 digits and then restart at 0

automatically.

Press Èor Çkeys to return to RUN.

The totalizer can be reset to zero by going to SPECIAL FUNCTION and Èto Reset Tot?.

RELAY STATUS DISPLAY

Press Èfrom Tot: to RELAYS 1,2.

Energized relays will be displayed in reverse type RELAYS:

PASSWORD

The password (a number from 00 to 99) prevents unauthorized access to the

CALIBRATION menu.

From RUN (scrolling display) press Æto PASSWORD.

Press Æto place the cursor under the digits and Èor Çto change the

number and then Æto proceed to CALIBRATION.

Factory default Password is 00. A new password can be stored by going Æto SPECIAL FUNCTION

and Èto New Password.

Manual Series A.10

AVFM-II Area-Velocity Flow Meter

Page 8

T: 9999999999

T: 0283168470

TOT: 0

Units: ft³, USG, IG, L

Units = m³

PASSWORD: 00

PASSWORD: 10

132

UNITS / MODE

Press Æto UNITS/MODE, then È. Press Æto move the cursor under the required measurement units:

ft - feet

in - inches

m- meters

cm - centimeters

%- percent

Press Èto Level Flow Velocity > Range.Use Æto select the operating mode of the AVFM-II.

Level mode measures water level above the calibrated zero level.

Flow mode is for open channel flow in pipes or rectangular channels. Displays flow in

engineering units.

Velocity mode displays flow velocity in units/time (eg: ft/sec/ or m/sec).

Range mode displays distance from the sensor to the liquid surface like a tape measure. (PZ12-LP

option only)

Press Èto make your selection.

ft3 - cubic feet

USG - US gallons

USMG - US million gallons (FLOW only)

IG - Imperial gallons

IMG - Imperial million gallons (FLOW only)

m3 -cubic meters

L- liters

Press Æto position the cursor underneath your selection and press Èto make your selection.

Repeat for selection of time units:

s-seconds

min - minutes

hr - hours

d- day

Note: The AVFM-II will display Er:ILLEGAL UNITS if your choice of Units exceeds a maximum

value of 9,999,999. Use US MGD, Imp MGD or m3/d so that Units will be 9,999,999 or less. Press È

to Store and Æto Yes. Then press Èor Çto store all your UNITS/MODE selections.

AVFM-II Area-Velocity Flow Meter

Manual Series A.10

Page 9

DATA LOGGING CHANNEL SETUP

UNITS/MODE

ft in m cm

Store? Yes

ft3 USG USMG IG IMG m3 L

s min hr d

Range

Level Flow Velocity

CHANNEL SETUP

From CHANNEL SETUP press Èto Round Egg Trapezd Square.

Round Select Round for open pipes. Press Èto Chan ID and Æto edit the channel/pipe inside

diameter. Use Èand Çto change the numbers and decimal point.

Egg Select Egg for channels with cross-section dimensioned as shown. Press Èto Height

and Æto edit the channel height. Press Çand Èto change numbers and decimal point.

Page 10

Manual Series A.10

AVFM-II Area-Velocity Flow Meter

R/2

HEIGHT

= 3R

CALIBRATION

Store? Yes

CHANNEL SETUP

Round

Width Width

UNITS/MODE

Chan ID

SquareTrapezd

Slope

Egg

Height

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