GEM 3040 User manual

GEMÜ 3040
Ultrasonic flowmeter
Operating instructions
EN
further information
webcode: GW-3040

All rights including copyrights or industrial property rights are expressly reserved.
Keep the document for future reference.
© GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG
18.11.2020
www.gemu-group.com2 / 34GEMÜ 3040

Contents
1 General information .................................................. 4
1.1 Information .......................................................... 4
1.2 Symbols used ...................................................... 4
1.3 Warning notes ..................................................... 4
2 Safety information .................................................... 4
3 Product description ................................................... 5
3.1 Construction ........................................................ 5
3.2 Description ........................................................... 5
3.3 Product label ....................................................... 6
4 Correct use ............................................................... 6
5 Order data ................................................................. 7
6 Technical data .......................................................... 8
7 Dimensions ............................................................... 11
8 Manufacturer's information ....................................... 12
8.1 Delivery ................................................................ 12
8.2 Transport ............................................................. 12
8.3 Storage ................................................................. 12
9 Installation in piping .................................................. 12
9.1 Preparing for installation .................................... 12
9.2 Installation position ............................................ 13
9.3 Installation of the measurement device ............ 13
10 Electrical connection ................................................. 15
10.1 Position of the connectors ................................. 15
10.2 5-pin plug with 1-wire communication ............... 15
11 Commissioning ......................................................... 16
11.1 Operation ............................................................. 16
11.2 Measurement device functions and default set-
tings ..................................................................... 20
11.3 Overview of factory settings ............................... 26
11.4 General information ............................................ 27
12 Measurement device replacement ............................. 27
13 Error messages ......................................................... 28
14 Inspection/maintenance ............................................ 29
15 Removal from piping ................................................. 29
16 Disposal .................................................................... 29
17 Returns ..................................................................... 29
18 Annex ....................................................................... 29
19 Declaration of conformity according to 2014/30/EU
(EMC Directive) ......................................................... 32
20 Manufacturer's declaration ........................................ 33
GEMÜ 3040www.gemu-group.com 3 / 34

www.gemu-group.com4 / 34GEMÜ 3040
1 General information
1 General information
1.1 Information
– The descriptions and instructions apply to the stand-
ard versions. For special versions not described in this
document the basic information contained herein ap-
plies in combination with any additional special docu-
mentation.
– Correct installation, operation, maintenance and repair
work ensure faultless operation of the product.
– Should there be any doubts or misunderstandings, the
German version is the authoritative document.
– Contact us at the address on the last page for staff
training information.
1.2 Symbols used
The following symbols are used in this document:
Symbol Meaning
Tasks to be performed
Response(s) to tasks
– Lists
1.3 Warning notes
Wherever possible, warning notes are organised according to
the following scheme:
SIGNAL WORD
Type and source of the danger
Possible
symbol for the
specific
danger
Possible consequences of non-observance.
Measures for avoiding danger.
Warning notes are always marked with a signal word and
sometimes also with a symbol for the specific danger.
The following signal words and danger levels are used:
DANGER
Imminent danger!
▶Non-observance can cause death or
severe injury.
WARNING
Potentially dangerous situation!
▶Non-observance can cause death or
severe injury.
CAUTION
Potentially dangerous situation!
▶Non-observance can cause moderate
to light injury.
NOTICE
Potentially dangerous situation!
▶Non-observance can cause damage to
property.
The following symbols for the specific dangers can be used
within a warning note:
Symbol Meaning
Danger – high voltage
2 Safety information
The safety information in this document refers only to an indi-
vidual product. Potentially dangerous conditions can arise in
combination with other plant components, which need to be
considered on the basis of a risk analysis. The operator is re-
sponsible for the production of the risk analysis and for com-
pliance with the resulting precautionary measures and re-
gional safety regulations.
The document contains fundamental safety information that
must be observed during commissioning, operation and main-
tenance. Non-compliance with these instructions may cause:
– Personal hazard due to electrical, mechanical and
chemical effects.
– Hazard to nearby equipment.
– Failure of important functions.
– Hazard to the environment due to the leakage of dan-
gerous materials.
The safety information does not take into account:
– Unexpected incidents and events, which may occur
during installation, operation and maintenance.
– Local safety regulations which must be adhered to by
the operator and by any additional installation person-
nel.
Prior to commissioning:
1. Transport and store the product correctly.
2. Do not paint the bolts and plastic parts of the product.
3. Carry out installation and commissioning using trained
personnel.
4. Provide adequate training for installation and operating
personnel.
5. Ensure that the contents of the document have been fully
understood by the responsible personnel.
6. Define the areas of responsibility.
7. Observe the safety data sheets.
8. Observe the safety regulations for the media used.

www.gemu-group.com 5 / 34 GEMÜ 3040
During operation:
9. Keep this document available at the place of use.
10. Observe the safety information.
11. Operate the product in accordance with this document.
12. Operate the product in accordance with the specifications.
13. Maintain the product correctly.
14. Do not carry out any maintenance work and repairs not de-
scribed in this document without consulting the manufac-
turer first.
In cases of uncertainty:
15. Consult the nearest GEMÜ sales office.
3 Product description
3.1 Construction
2
3
1
4
5
3
6
6
Item Name Materials
1 Housing bolt
2 Display
3 Electrical connection
4 Electronic system housing DN 10–25: PSU
DN 32–50: PE-HD
5 Body (threaded spigot) DN 10–25: PSU
DN 32–50: PE-HD
6 Seals EPDM
3.2 Description
The GEMÜ 3040 is an ultrasonic flowmeter which determines
the volumetric flow of conductive and non-conductive liquids
in a contact-free manner. The flowmeter is suitable for al-
kaline, toxic and corrosive media and can also be used for DI
water. The backlit display enables the device to be pro-
grammed on-site. Empty pipe monitoring and a quantity
measuring device are integrated as standard.
3.2.1 Areas of application
The GEMÜ 3040 flowmeter is particularly suitable for measur-
ing very dynamic processes in piping. Liquids are the media
measured. It is used, for example, in the following:
– Chemical supply for controlling, logistics and monitor-
ing
– Cooling circuits, for monitoring
– Production machines for controlling and monitoring
the formulations
– Valve actuation for the continuous release of volumes
of liquids
– DI water supply
– Very dynamic processes with dosing times of less
than 1 s.
3 Product description

www.gemu-group.com6 / 34GEMÜ 3040
4 Correct use
Its performance features include the following properties:
– No moving parts and therefore no wear
– High level of reproducibility
– Simple cleaning
– Tamper-proof design
– Compact design
– Integrated empty pipe detection
– Integrated batch control function with preset and cor-
rection quantity
– High chemical resistance
3.2.2 Measurement principle
Swimming against the current requires more strength than
swimming with the current. The ultrasonic flow measurement
in accordance with the phase differential method is based on
this simple physical fact:
Two sensors opposite each other alternately send and receive
ultrasonic signals. With a standing medium, both sensors re-
ceive the sent ultrasonic signals within the same phase, i.e.
no difference in phase occurs. With a flowing medium, a
phase shift takes place. When measured in the direction of
flow, it is different than when measuring against the direction
of flow. This phase difference is directly proportional to the
flow velocity. The flow volume is determined from the flow ve-
locity and the known pipe diameter.
Transmitter/
receiver
Receiver/
transmitter
Phase in flow direction
Phase against the flow direction
L: Metering tube length
K: Factor
D: Metering tube diameter
v: Flow velocity
c: Sound velocity of the liquid
Fig.3: Schematic diagram of ultrasonic flow measurement
3.2.3 Operational safety
Wide range of self-tests provide maximum possible opera-
tional safety.
Any occurring errors (process or system errors) are output at
a digital output or shown in the display.
The protection class is IP 67.
The product fulfils the general EMC immunity requirements in
accordance with CE, EN 61000-6-3, EN 61000-4-2, EN
61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6.
The product fulfils the conditions with regard to the safe extra
low voltage (EN 50178, SELV, PELV).
3.3 Product label
3040 20D 92214 MC1D 51D
GEMÜ Gebr. Müller Apparatebau GmbH& Co. KG
Fritz-Müller-Straße 6-8
74653 Ingelfingen-Criesbach
Art.Nr.: 88701777 Fab.Nr.: 20823
Made in Germany
1 VCC G 1
2 Q1 max: 60 l/min
3 GND 18...30VDC
4 Com 10 Bar
5 QA IP67
Tmax: 80°C
4 3
5
2
1
Product type/order code
Specification
The month of manufacture is encoded in the product type/or-
der code and can be obtained from GEMÜ.
The product was manufactured in Germany.
4 Correct use
DANGER
Danger of explosion
▶Risk of death or severe injury.
●Do not use the product in potentially
explosive zones.
WARNING
Improper use of the product
▶Risk of severe injury or death.
▶Manufacturer liability and guarantee will be void.
●Only use the product in accordance with the operating
conditions specified in the contract documentation and in
this document.
The product is not intended for use in potentially explosive
areas.

5 Order data
The order data provide an overview of standard configurations.
Please check the availability before ordering. Other configurations available on request.
Order codes
1 Type Code
Ultrasonic flowmeter 3040
2 DN Code
DN 10 10
DN 15 15
DN 20 20
DN 25 25
DN 32 32
DN 40 40
DN 50 50
3 Body configuration Code
2/2-way body D
4 Connection type Code
Threaded spigot 9
5 Metering tube material Code
PSU 22
PE-HD B3
6 Seal material Code
EPDM 14
7 Electrical connection Code
M12 x 1 plug, 5-pin M
8 Voltage/frequency Code
24 V DC C1
9 Display Code
With display D
10 Output Code
5-pin plug with 1-wire communication 51D
5 Order data
www.gemu-group.com 7 / 34 GEMÜ 3040

6 Technical data
6.1 Medium
Working medium: Corrosive, alkaline, toxic, inert and liquid media, including DI water, which have no negative impact
on the physical and chemical properties of the respective valve body and seal material.
6.2 Temperature
Media temperature: DN 10–25: -10 – +80 °C
DN 32–50: 0 – +50 °C
Ambient temperature: DN 10–25: 0 – +60 °C
DN 32–50: -15 – +50 °C
Storage temperature: 0 to 40 °C
6.3 Pressure
Operating pressure: 0 to 16 bar
Pressure rating: DN 10–15: PN16
DN 20–50: PN10
Pressure loss: Pressure loss with water at 22 °C, 100 kPa = 1 bar
DN25 (code 25)
Pressure loss [kPa]
Flow [l/min]
DN32 (code 32)
Pressure loss [kPa]
Flow [l/min]
www.gemu-group.com8 / 34GEMÜ 3040
6 Technical data

Pressure loss:
DN40 (code 40)
Pressure loss [kPa]
Flow [l/min]
DN50 (code 50)
Pressure loss [kPa]
Flow [l/min]
6.4 Product conformities
EMC Directive: 2014/30/EU
6.5 Mechanical data
Protection class: DN 10–25: IP 67
DN 32–50: IP 65
Weight: DN 10–15: 350 g
DN 20–25: 450 g
DN 32–40: 1100 g
DN 50: 1300 g
Measuring range: DN 10: 0.3–21.0 l/min
DN 15: 0.9–36.0 l/min
DN 20: 3.5–60.0 l/min
DN 25: 5.0–240.0 l/min
DN 32: 9.0–300.0 l/min
DN 40: 18.0–480.0 l/min
DN 50: 36.0–900.0 l/min
GEMÜ 3040www.gemu-group.com 9 / 34
6 Technical data

Error of measurement: DN 10: ± 2%, of the measured value, ± 6 mm/s
DN 15–25: ± 2% of the measured value, ± 3 mm/s
DN 32–50: ± 2% of the measured value, ± 0.3 % of the end value
Reference conditions (VDI/VDE 2642)
The error of measurement can be reduced to 1% of the measured value on request.
Example: Permissible range of deviation of a calibrated flowmeter in accordance
with the definition
020 40 60 80 100
0
1
2
3
4
5
-1
-2
-3
-4
-5
10 30 50 70 90
Flow [%] of the end value
Deviation [%]
Reproducibility: ≤ ±0.5%
6.6 Electrical data
Duty cycle: Continuous duty
Supply voltage: 24 V DC (-5/+10%)
Electrical connection
type:
1 x 5-pin M12 connector
Reverse battery protec-
tion:
Yes
Outputs: One digital output (optionally adjustable as pulse or alarm)
One analogue output (current output 0/4–20 mA)
www.gemu-group.com10 / 34GEMÜ 3040
6 Technical data

7 Dimensions
L
B
H
X
DN Connection L W H X
Channel offset
10 G1/2 147 84 83 5
15 G3/4 147 84 84.5 5
20 G1 160 84 94.2 5
25 G1¼ 168 84 98.5 5
32 G2 220 80 120 -
40 G2¼ 220 84 122 -
50 G2¾ 220 95 131 -
Dimensions in mm
GEMÜ 3040www.gemu-group.com 11 / 34
7 Dimensions

www.gemu-group.com12 / 34GEMÜ 3040
8 Manufacturer's information
8 Manufacturer's information
8.1 Delivery
●Check that all parts are present and check for any damage
immediately upon receipt.
The product's performance is tested at the factory. The scope
of delivery is apparent from the dispatch documents and the
design from the order number.
Provided in the scope of delivery:
– GEMÜ 3040 ultrasonic flowmeter
– 2 x EPDM seals
8.2 Transport
1. Only transport the product by suitable means. Do not drop.
Handle carefully.
2. After the installation dispose of transport packaging ma-
terial according to relevant local or national disposal regu-
lations / environmental protection laws.
8.3 Storage
1. Store the product free from dust and moisture in its ori-
ginal packaging.
2. Avoid UV rays and direct sunlight.
3. Do not exceed the maximum storage temperature (see
chapter "Technical data").
4. Do not store solvents, chemicals, acids, fuels or similar
fluids in the same room as GEMÜ products and their spare
parts.
9 Installation in piping
9.1 Preparing for installation
WARNING
▶The product may only be used for liquids. Gases are not
permissible.
WARNING
The equipment is subject to pressure!
▶Risk of severe injury or death.
●Depressurize the plant.
●Completely drain the plant.
WARNING
Corrosive chemicals!
▶Risk of caustic burns.
●Wear suitable protective gear.
●Completely drain the plant.
CAUTION
Hot plant components!
▶Risk of burns.
●Only work on plant that has cooled
down.
CAUTION
Exceeding the maximum permissible pressure.
▶Damage to the product.
●Provide precautionary measures against exceeding the
maximum permitted pressures caused by pressure
surges (water hammer).
CAUTION
Use as step.
▶Damage to the product.
▶Risk of slipping-off.
●Choose the installation location so that the product can-
not be used as a foothold.
●Do not use the product as a step or a foothold.
NOTICE
Suitability of the product!
▶The product must be appropriate for the piping system
operating conditions (medium, medium concentration,
temperature and pressure) and the prevailing ambient
conditions.
NOTICE
Tools
▶The tools required for installation and assembly are not
included in the scope of delivery.
●Use appropriate, functional and safe tools.
1. Ensure the product is suitable for the relevant application.
2. Check the technical data of the product and the materials.
3. Keep appropriate tools ready.
4. Wear appropriate protective gear, as specified in the plant
operator's guidelines.
5. Observe appropriate regulations for connections.
6. Have installation work carried out by trained personnel.
7. Shut off plant or plant component.
8. Secure plant or plant component against recommission-
ing.
9. Depressurize the plant or plant component.
10. Completely drain the plant (or plant component) and let it
cool down until the temperature is below the media vapor-
ization temperature and cannot cause scalding.
11. Correctly decontaminate, rinse and ventilate the plant or
plant component.
12. Lay piping so that the product is protected against trans-
verse and bending forces, and also from vibrations and
tension.
13. Only install the product between matching aligned pipes
(see chapters below).
14. Please note the flow direction.
15. Please note the installation position (see chapter "Installa-
tion position").

www.gemu-group.com 13 / 34 GEMÜ 3040
9.2 Installation position
NOTICE
▶There is an arrow on the measurement channel of the
product symbolizing the direction of flow measurement.
The measurement device must be installed so that the
medium flows through it in the direction of the arrow.
TOP -> outlet
BOTTOM -> inlet
Fig.4: Ideal installation position of the product
To ensure gas is detected as quickly as possible, it is import-
ant to keep the line path between the storage tank and the
product as short as possible. Faultless measurement can only
be ensured if the line is filled completely and the liquid does
not outgas.
Deviating from this, it can be advantageous for dosing applic-
ations to position the product as closely as possible to the
dosing valve as the cross-sections of hose lines increase de-
pending on the system pressure. This can lead to differences
in reproducibility.
NOTICE
▶It must be ensured that no gas elements dissolve out of
the medium. Depending on the liquid, sufficient back
pressure on the outlet of the product can prevent the li-
quid from outgassing. Suitable sealing material must be
used during assembly. The use of Teflon tape or similar
must be avoided.
Any carried solid matter can lead to measurement errors.
When using pumps, the product must be installed in the flow
direction behind the pump on the pressure side to ensure that
there is sufficient pressure. The maximum pressure rating of
the product must be taken into account.
Straight and uninterrupted inlet and outlet distances for the
product must be complied with for a correct volume flow
measurement. Dependent on the nominal size, these are at
least:
DN10 DN15 DN20 DN25 DN32 DN40 DN50
Inlet distance 10
cm
30
cm
40
cm
40
cm
40
cm
45
cm
60
cm
Outlet distance 0 cm 5 cm 10
cm
20
cm
20
cm
20
cm
20
cm
9.3 Installation of the measurement device
The measurement device is installed using the process con-
nections in the pipe or tube line. To ensure optimal degassing,
we recommend mounting the product vertically in the line.
The device must not be mounted behind an outlet valve as it
can run empty otherwise. To prevent gas diffusion and blister
formation of the medium during flow measurement, the
product must always be installed on the pressure side of the
system pump.
GEMÜ 3040
Valve
Container
Process valve
Pump
GEMÜ 3040
Fig.5: Installation situation
9 Installation in piping

www.gemu-group.com14 / 34GEMÜ 3040
9 Installation in piping
If the measurement device cannot be mounted vertically, the
line in which it is mounted must always be filled. An optimal
measurement is ensured if no gas bubbles can form in the
measurement channel of the product.
Valve
GEMÜ 3040
Process
Valve
GEMÜ
3040
Process
Fig.6: Possible installation variants
For applications in "Clean Design", i.e. when it must be en-
sured that the lines are completely drained, we recommend
vertical installation of the measurement device. If the installa-
tion position is horizontal, remnants of liquid could remain in
the device due to the geometry of the channel in the measure-
ment channel interior.
Vibrations or mechanical stress can affect the accuracy of the
measurement device. If it is therefore necessary to addition-
ally fix the product in place due to vibrations or mechanical
movements, two fastening clamps can be fitted on the inlet or
outlet of the measurement device.
Fig.7: Fixing the product in place
CAUTION
▶The product must always be mounted so that it is mech-
anically stress-free. Extreme tension in the pipe system
can cause damage to the device.
▶In this respect, the axial channel offset of 5 mm (only
DN10–DN25) must be observed during assembly (see the
chapter "Technical data").
Application with hot liquids:
CAUTION
▶For applications in which the product is subjected to tem-
peratures higher than 60 °C and is mounted horizontally,
we recommend installing the measurement device with
the electronics housing positioned downwards. This
means that the heat can be emitted upwards and the load
on the device's electronics is reduced. It must generally
be ensured that no external heat sources are additionally
acting on the measurement device.
Fig.8: Using the product with hot media
WARNING
Installation in metallic piping in combination with high me-
dia temperatures.
▶You must remember that the metal piping and the plastic
body of the measurement device have different expan-
sion behaviours. The forces acting on the measurement
device because of this can cause the plastic body of the
product to become distorted and for the process connec-
tion to tear off.
▶To ensure the mechanically stress-free installation of the
product, appropriate measures must be taken on-site to
ensure that no forces can act on the plastic body, for ex-
ample, a flexible metal hose or strain curve.

10 Electrical connection
CAUTION
Electric shock by high voltage
▶Danger of injury or death caused by electric shock.
●The measurement device must not be installed, wired or dismantled while live with
operating voltage.
●The supply voltage of the product must be switched off during these procedures.
10.1 Position of the connectors
X1
10.2 5-pin plug with 1-wire communication
Pin assignment: Plug/coupling for 5-pin
1
4
3
2
5
15
4
3
2
Plug assignment, 5-pin, with output assignment at the factory
The inputs and outputs can be reprogrammed specific to application.
Pin Signal name
1 Uv, 24 V DC supply voltage
2 Pulse output
3 Uv, GND supply voltage
4 Communication
5 Analogue output
GEMÜ 3040www.gemu-group.com 15 / 34
10 Electrical connection

www.gemu-group.com16 / 34GEMÜ 3040
11 Commissioning
11 Commissioning
CAUTION
Operation under prohibited operating conditions can cause
overloading, damage or faults.
▶The GEMÜ 3040 measurement device may only be oper-
ated within the limits specified on the product label and in
the operating instructions/datasheet.
NOTICE
▶If the product is to be used for a medium other than wa-
ter, the "Basic calibration" function must be carried out as
part of commissioning via the device display with the
device filled. The medium may not flow during the calibra-
tion, as it affects the function.
11.1 Operation
11.1.1 Display and user menu
The product is available with a display for showing current
measurement values as well as for setting application-spe-
cific parameters. The four keys of the membrane keyboard
can be used to navigate in the menu and configure settings.
Fig.9: Operating the display
Press the "Set" key to access the main menu level. Different
submenu levels can be accessed from here. The menu is nav-
igated using the two arrow keys. Press the "Set" key again to
confirm a menu item.
For the input of limit values such as, for example, under "Ana-
logue output QA – max. range", the required numbers are set
using the arrow keys. The entered value is accepted as soon
as the "Set" key is pressed. Press the "Esc" key to switch back
to the menu levels. A password must be entered as soon as a
parameter is to be changed via the display menu. This en-
sures that only authorized employees can make changes to
the device parameters. The menu password in the delivery
state is 41414. The password can be changed where neces-
sary. The user remains logged in for 30 minutes after the last
key has been pressed. 200 seconds after the last key has
been pressed, the device switches from the menu back into
display mode.
For operating examples, see the annex.
NOTICE
▶The current set and activated parameter of the menu al-
ways appears first in the display. The activated parameter
is shown inversed.
NOTICE
▶All possible functionalities of the measurement device
are visible in the menu.

www.gemu-group.com 17 / 34 GEMÜ 3040
11.1.2 Structure of the menu system
Start screen
Language
Dosing
Media
Gen. settings
Display
Deutsch
Español
Français
English
Batch quantity
Stop
Start
Dosing time
Input
Input
Zero balance
1-point correction
Leak flow volume
Basic calibration
Water
Leak flow delay
Leak flow volume
Input
Input
Daily quantity reset
Hysteresis limit value
Low set point
High set point
Pulse valence
Operating quantity counter
Daily quantity counter
Units
Display filter
Turn display
Alarm flashing
ml/s + L
L/h + L
L/min + m
Gal/min + Gal
2
L/min + L
Off
On
0°
270°
180°
90°
On
Off
11 Commissioning

www.gemu-group.com18 / 34GEMÜ 3040
11 Commissioning
Analogue output
Digital output 1
Function
Filter strength
Output value
Weak
Off
Function
Pulse output
NPN make contact
4-20 mA
Off
0-20 mA
Strong
Medium
Flow
PID controller
Sound velocity
Temperature
Min. range
Max. range
Input
Input
Off
Dosing
Negative flow
Low set point
High set point
Empty pipe
Transistor logic
PNP make contact
NPN break contact
PNP break contact
Digital output 2
Function
Transistor logic
PNP make contact
NPN break contact
Empty pipe
Pulse output
Off
NPN make contact
PNP break contact
Dosing
Negative flow
Low set point
High set point
= inactive

www.gemu-group.com 19 / 34 GEMÜ 3040
Status
PCK2
On
Control PCK1
PCK3
PCK4
PCK5
PCK6
Flag0
Flag1
Flag2
PuMo
Off
Pump mode
Diagnostics Fac.no.:
Versions
Test flow Flow input
Stop
SW Ver
DE Ver
HW Ver
Start
VST
PhF
Eamp
SLZ
Rohf
Values
Temp.
Off
Digital input
Reset counter
Dosing
Leak flow volume off
= inactive
Zero balance
11 Commissioning

www.gemu-group.com20 / 34GEMÜ 3040
11 Commissioning
11.2 Measurement device functions and default settings
11.2.1 Language
The language for display and menu texts can be changed.
Choose between German, Spanish, French and English in the
relevant "Languages" submenu.
11.2.2 Dosing
WARNING
●A technical solution for overflow protection and an EMER-
GENCY STOP switch must be provided on-site. For safety
reasons, both functions must lead to the valve closing.
NOTICE
Important:
▶If the dosing time = 0, timeout is deactivated.
Manual dosing can be configured via the dosing menu. It is
possible to enter the required "Batch quantity" and a "Dosing
time" for this. The dosing time is intended as a safeguard to
prevent unintentional overfilling, but can also be deactivated
when the value "Zero" is entered. "Start" and "Stop" of a dosing
can also be carried out via the menu.
"Batch quantity" setting range: 0–3500 litres, in 0.001 litre
steps
"Batch quantity" factory set-
ting:
0 litres
"Dosing time" setting range: 0–3000 seconds, in 1 sec
steps with an accuracy of +0
-1.
"Dosing time" factory setting: 3 seconds
Example:
Dosing time = 3 seconds. This means that the product issues
the closing signal to the valve after 2.1 to 3.0 sec. The dosing
time is meant as a fail safe function. Precise dosing using just
dosing time is not advisable.
11.2.3 Media
11.2.3.1 1-point correction
Setting range: -50.0 to 50.0% in steps of 0.1%
Factory setting: 0%
11.2.3.2 Leak flow volume
Leak flow volume suppression serves to exclude flows from
the measurement which can be created by convection within
a narrow scope around zero even with the valve closed. Leak
flow suppression is set at the factory to an advisable stand-
ard value in relation to the cross-section of the measurement
device.
There are greater tolerances under the error of measurement
below the factory setting. (see “Mechanical data“, page9)
Leak flow volume suppression operates with a hysteresis of –
25%.
Flow [l/min]
1 Switch-on point of leak flow volume suppression
2 Switch-off point of leak flow volume suppression
-25 % 1
2
1
2
1.2
0.9
1.05
0.6
0.75
0.3
0.45
0
0.15
Active
Pulse/
current output
ActiveInactive Active
Inactive
Fig.10: Function of the leak flow volume suppression, using 0.6
l/min as an example
Example: Leak flow volume suppression = 0.6 l/min
If the flow falls below a value of 0.45 l/min, the pulse output/
analogue output becomes inactive. When 0.6 l/min is ex-
ceeded, the flow rate is output as a pulse again and is added
to the daily quantity counter. A value is also output at the ana-
logue output again.
Setting range: 0.0 to 36.0 l/min, in steps of 0.006 l/min
Factory setting:
– 0.3 l/min for DN10
– 0.9 l/min for DN15
– 3.5 l/min for DN20
– 5.0 l/min for DN25
– 9.0 l/min for DN32
– 18.0 l/min for DN40
– 36.0 l/min for DN50