Kobold DOG-4 User manual

DOG-4/-6 electronic option
G0/H0/I0/K0/L0
FLOW RATE INDICATOR/TOTALISER
Signal input flowmeter: pulse
Signal outputs: 4-20 mA ref. flow rate and pulse ref. volume quantity
Options: Modbus communication

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SAFETY INSTRUCTIONS
 Any responsibility is lapsed if the instructions and procedures as described in this
manual are not followed.
 LIFE SUPPORT APPLICATIONS: The flow rate/totaliser is not designed for use in life
support appliances, devices, or systems where malfunction of the product can
reasonably be expected to result in a personal injury. Customers using or selling these
products for use in such applications do so at their own risk and agree to fully
indemnify the manufacturer and supplier for any damages resulting from such
improper use or sale.
 Electro static discharge does inflict irreparable damage to electronics! Before
installing or opening the unit, the installer has to discharge himself by touching a well-
grounded object.
 This unit must be installed in accordance with the EMC guidelines (Electro Magnetic
Compatibility).
SAFETY RULES AND PRECAUTIONARY MEASURES
 The manufacturer accepts no responsibility whatsoever if the following safety rules and
precautions instructions and the procedures as described in this manual are not followed.
 Modifications of the flow rate/totaliser implemented without preceding written consent from the
manufacturer, will result in the immediate termination of product liability and warranty period.
 Installation, use, maintenance and servicing of this equipment must be carried out by
authorized technicians.
 Check the mains voltage and information on the manufacturer's plate before installing the unit.
 Check all connections, settings and technical specifications of the various peripheral devices
with the flow rate/totaliser supplied.
 Open the casing only if all leads are free of potential.
 Never touch the electronic components (ESD sensitivity).
 If the operator detects errors or dangers, or disagrees with the safety precautions taken, then
inform the owner or principal responsible.
 The local labor and safety laws and regulations must be adhered to.

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ABOUT THE OPERATION MANUAL
This operation manual is divided into two main sections:
 The daily use of the unit is described in chapter 2 "Operational". These instructions are meant for
users.
 The following chapters and appendices are exclusively meant for electricians/technicians. These
provide a detailed description of all software settings and hardware installation guidance.
This operation manual describes the standard unit as well as most of the options available. For
additional information, please contact your supplier.
A hazardous situation may occur if the flow rate/totaliser is not used for the purpose it was
designed for or is used incorrectly. Please carefully note the information in this operating
manual indicated by the pictograms:
A "caution" indicates actions or procedures which, if not performed correctly, may lead to
personal injury or incorrect functioning of the flow rate/totaliser or connected instruments.
A "note" indicates actions or procedures which, if not performed correctly, may indirectly affect
operation or may lead to an instrument response which is not planned.
Manufactured and sold by:
Kobold Messring GmbH
Nordring 22-24
D-65719 Hofheim
Tel.: [phone]
Fax: [phone]
E-Mail: [email protected]
Internet: www.kobold.com
Information in this manual is subject to change without prior notice. The
manufacturer is not responsible for mistakes in this material or for incidental
damage caused as a direct or indirect result of the delivery, performance or
use of this material.
© All rights reserved. No parts of this publication may be reproduced or used
in any form or by any means without written permission of your supplier.

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CONTENTS MANUAL
Safety instructions 2
Safety rules and precautionary measures ................................................................................................................................................. 2
About the operation manual ...................................................................................................................................................................... 3
Contents manual ................................................................................................................................................................................... 4
1.Introduction ................................................................................................................................................................................... 6
2.Operational ................................................................................................................................................................................... 7
3.Configuration ................................................................................................................................................................................ 9
1 - Total ........................................................................................................................... 13
2 – Flow rate .................................................................................................................... 14
3 - Display ........................................................................................................................ 15
4 - Power management ................................................................................................... 15
5 - Flowmeter .................................................................................................................. 16
6 - Linearisation ............................................................................................................... 17
7 - Analog output ............................................................................................................. 18
7 - Analog output (continued) .......................................................................................... 19
8 - Pulse output ............................................................................................................... 20
9 - Communication (optional) .......................................................................................... 21
A - Others ........................................................................................................................ 21
4.Installation ................................................................................................................................................................................... 22
5.Maintenance ............................................................................................................................................................................... 25
Appendix A:Technical specification of flow indictaor .................................................................................................................. 26
Appendix B:Problem solving ....................................................................................................................................................... 28
Appendix C:Communication variables ........................................................................................................................................ 29
Appendix D:Factory settings for flow indicator ............................................................................................................................ 32
6. EU Declaration of Conformance ................................................................................................................................................. 34

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The instruction manuals on our website www.kobold.com are always for currently
manufactured version of our products. Due to technical changes, the instruction
manuals available online may not always correspond to the product version you have
purchased. If you need an instruction manual that corresponds to the purchased
product version, you can request it from us free of charge by email
([email protected]) in PDF format, specifying the relevant invoice number and
serial number. If you wish, the operating instructions can also be sent to you by post
in paper form against an applicable postage fee.

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1. INTRODUCTION
1.1. General notice
This operating manual provides assistance and instructions to clients of Kobold Messring GmbH for
the installation and configuration of the flow rate/totaliser when used in combination with a type DOG-
… oscillation flowmeter.
This operating manual is a supplement to existing documents, such as the data sheet and the
operating manual for the DOG-… oscillation flow meter.
This document is subject to change due to technical improvements. This version replaces all previous
versions of the document.
1.2 Device description
The flow rate/totaliser is a microcontroller-operated display device for the volume flow and total volume
flow of gases. Figure 1 shows a typical application of the flow rate indicator/totaliser.
Fig. 1: Typical application for the flow rate indicator/totaliser
The flow rate/totaliser is installed together with, and pre-wired to, a DOG-… transmitter in a control
box. A connector rail with all required inputs and outputs is provided for the user. The rail’s connection
layout is displayed on the switch box’s safety cover. Electric wiring must be done in accordance with
the wiring diagram following in chapter 4.
The flow computer is preconfigured by the factory. The table containing the factory settings can be
found in annexure D.
The measuring range and the K-factor are pre-set according to client requirements. Linearization is
switched off. The linearization settings should not be altered.
The analogue output (4-20 mA) is also factory-calibrated. Please do not change the settings in menu
points 75 and 76, as the calibration points will otherwise be altered.
The pulse output is scaled according to volume quantity (for example, one pulse every 12 m3). The
factory setting is one pulse per m3. The pulse duration can be adjusted between 0.0078 and
2 seconds. The standard setting is 0.0156 seconds.

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2. OPERATIONAL
2.1. General
 The flow rate/totaliser may only be operated by personnel who are authorized and
trained by the operator of the facility. All instructions in this manual are to be observed.
 Take careful notice of the "Safety rules, instructions and precautionary measures" in
the front of this manual.
This chapter describes the daily use of the flow rate/totaliser. This instruction is meant for users
/ operators.
2.2. CONTROL PANEL
The following keys are available:
Fig. 2: Control Panel.
Functions of the keys

This key is used to program and save new values or settings.
 It is also used to gain access to SETUP-level; please read chapter 3.
 This key is used to SELECT accumulated total.
The arrow-key  is used to increase a value after PROG has been pressed
or to configure the unit; please read chapter 3.
Press this key twice to CLEAR the value for total.
 The arrow-key is used to select a digit after PROG has been pressed or to
configure the unit; please read chapter 3.

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2.3. OPERATOR INFORMATION AND FUNCTIONS
In general, the flow rate/totaliser will always act at Operator level. The information displayed is
dependent upon the SETUP-settings. All pulses generated by the connected flowmeter are measured
by the flow rate/totaliser in the background, whichever screen refresh rate setting is chosen. After
pressing a key, the display will be updated very quickly during a 30 second period, after which it will
slow-down again. All information displayed is corrected by using the linearization table as stored in the
flow rate/totaliser.
Fig. 3: Example of display information during process.
For the Operator, the following functions are available:
 Display flow rate / total or flow rate
This is the main display information of the flow rate totaliser. After selecting any other
information, it will always return to this main display automatically.
Total is displayed on the upper-line of the display and flow rate on the bottom line.
It is possible to display flow rate only with the large 17mm digits; in this instance press the
SELECT-key to read the total.
When "-------" is shown, then the flow rate value is too high to be displayed. The arrows 
indicate the increase/decrease of the flow rate trend.
 Clear total
The value for total can be re-initialized. To do so, press CLEAR twice. After pressing CLEAR
once, the flashing text "PUSH CLEAR" is displayed. To avoid re-initialization at this stage, press
another key than CLEAR or wait for 20 seconds.
Re-initialization of total DOES NOT influence the accumulated total.
 Display accumulated total
When the SELECT-key is pressed, total and accumulated total are displayed. The accumulated
total cannot be re-initialized. The value will count up to 99,999,999,999. The unit and number of
decimals are displayed according to the configuration settings for total.
 Alarm 01-03
When "alarm" is displayed, please consult Appendix B: problem solving.
RUN

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3. CONFIGURATION
3.1. INTRODUCTION
This and the following chapters are exclusively meant for electricians and non-operators. In
these, an extensive description of all software settings and hardware connections are provided.
 Mounting, electrical installation, start-up and maintenance of the instrument may only
be carried out by trained personnel authorized by the operator of the facility. Personnel
must read and understand this Operating Manual before carrying out its instructions.
 The flow rate/totaliser may only be operated by personnel who are authorized and
trained by the operator of the facility. All instructions in this manual are to be observed.
 Ensure that the measuring system is correctly wired up according to the wiring
diagrams. The housing may only be opened by trained personnel.
 Take careful notice of the "Safety rules, instructions and precautionary measures" in
the front of this manual.
3.2. PROGRAMMING SETUP-LEVEL
3.2.1. GENERAL
Configuration of the flow rate/totaliser is done at SETUP-level. SETUP-level is reached by
pressing the PROG/ENTER key for 7 seconds; at which time, both arrows  will be displayed.
In order to return to the operator level, PROG will have to be pressed for three seconds.
Alternatively, if no keys are pressed for 2 minutes, the unit will exit SETUP automatically.
SETUP can be reached at all times while the flow rate/totaliser remains fully operational.
Note: A pass code may be required to enter SETUP. Without this pass code access to SETUP
is denied.
To enter SETUP-level:



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Matrix structure SETUP-level:
SCROLLING THROUGH SETUP-LEVEL
Selection of function-group and function:
SETUP is divided into several function groups and functions.
Each function has a unique number, which is displayed below the word "SETUP" at the bottom of the
display. The number is a combination of two figures. The first figure indicates the function-group and
the second figure the sub-function. Additionally, each function is expressed with a keyword.
After selecting a sub-function, the next main function is selected by scrolling through all "active" sub-
functions (e.g. 1, 11, 12, 13, 14, 1, 2, 3, 31 etc.).

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To change or select a value:
To change a value, use  to select the digits and  to increase that value.
To select a setting, both  and  can be used.
If the new value is invalid, the increase sign or decrease-sign will be displayed while you
are programming.
When data is altered but ENTER is not pressed, then the alteration can still be cancelled by
waiting for 20 seconds or by pressing ENTER for three seconds: the PROG-procedure will be
left automatically and the former value reinstated.
Note: alterations will only be set after ENTER has been pressed!
To return to OPERATOR-level:
In order to return to the operator level, PROG will have to be pressed for three seconds. Also,
when no keys are pressed for 2 minutes, SETUP will be left automatically.

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3.2.2. OVERVIEW FUNCTIONS SETUP LEVEL
SETUP FUNCTIONS AND VARIABLES
1 TOTAL
 11 UNIT L‐ m3‐ kg‐ lb‐ GAL‐ USGAL‐ bbl‐ nounit
 12 DECIMALS 0‐ 1‐ 2‐ 3(Ref:displayedvalue)
 13 K‐FACTOR: 0.000010‐ 9,999,999
 14 DECIMALSK‐FACTOR 0‐ 6
2 FLOWRATE
 21 UNIT mL‐ L‐ m3‐ mg‐ g‐ kg‐ ton‐ GAL‐ bbl‐ lb‐ cf‐REV‐nounit‐
scf‐Nm3‐NL‐P
22TIMEUNI
T
sec‐min‐hour‐day
 23 DECIMALS 0‐ 1‐ 2‐ 3(Ref:displayedvalue)
 24 K‐FACTOR 0.000010‐ 9,999,999
 25 DECIMALSK‐FACTOR 0‐ 6
 26 CALCULATION per1‐ 255pulses
 27 CUT‐OFF 0.1‐ 999.9seconds
3 DISPLAY
 31 FUNCTION total‐ flowrate
4 POWER MANAGEMENT
 41 LCDUPDATE fast‐ 1sec‐ 3sec‐ 15sec‐ 30sec‐ off
 42 BATTERYMODE operational‐ shelf
5 FLOWMETER
 51 SIGNAL npn‐ npn_lp‐ reed‐ reed_lp‐ pnp‐ pnp_lp‐namur‐coil_hi‐
coil_lo‐act_8.1‐act_12‐act_24
6 LINEARISATION
 61 FREQ./M‐FACTOR1 0.1
–
9,999.9Hz/0.000001
–
9.999999
 62 FREQ./M‐FACTOR2 0.1
–
9,999.9Hz/0.000001
–
9.999999
 63 FREQ./M‐FACTOR3 0.1
–
9,999.9Hz/0.000001
–
9.999999
.. ..  ……..
6F FREQ./M‐FACTOR15 0.1
–
9,999.9Hz/0.000001
–
9.999999
 6G LINEARISATION enable/disable
 6H DECIMALSFREQUENCY 00000 - 1111.1 - 222.22 - 33.333
7 ANALOG
 71 OUTPUT disable‐ enable
 72 4mA/0V 0000.000‐ 9,999,999
 73 20mA/10V 0000.000‐ 9,999,999
 74 CUT‐OFF 0.0‐ 9.9%
 75 CALIBRATELOW default‐ calibrate‐ calibrateset
 76 CALIBRATEHIGH default‐ calibrate‐ calibrateset
 77 FILTER 01 ‐ 99
8 IMPULSE
 81 PERIODTIME 0‐ 250
 82 IMPULSEPER X,XXX,XXXquantity
9 COMMUNICATION
 91 SPEED/BAUDRATE 1200‐ 2400‐ 4800‐ 9600
 92 ADDRESS 1‐ 255
 93 MODE rtu‐ off
A OTHERS
 A1 TYPE/MODEL flowrate/totaliser
 A2 SOFTWAREVERSION ‐
A3SERIALNO. ‐
 A4 PASSCODE 0000‐ 9999
 A5 TAGNUMBER 0000000‐ 9999999

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3.2.3. EXPLANATION OF SETUP-FUNCTIONS
1 - TOTAL
MEASUREMENT UNIT
11
SETUP - 11 determines the measurement unit for total, accumulated total
and pulse output. The following units can be selected:
L - m3 - kg - lb. - GAL - USGAL - bbl - _ (no unit).
Alteration of the measurement unit will have consequences for operator
and SETUP-level values.
Please note that the K-factor has to be adapted as well; the calculation is
not done automaticall
y
.
DECIMALS
12
The decimal point determines for total, accumulated total and pulse output
the number of digits following the decimal point.
The following can be selected:
0000000 - 111111.1 - 22222.22 - 3333.333
K-FACTOR
13
With the K-factor, the flowmeter pulse signals are converted to a quantity.
The K-factor is based on the number of pulses generated by the
flowmeter per selected measurement unit (SETUP 11), for example per
cubic meter. The more accurate the K-factor, the more accurate the
functioning of the system will be.
Example 1: Calculating the K-factor.
Let us assume that the flowmeter generates 2.4813 pulses per
liter and the selected unit is "cubic meters / m3". A cubic meter
consists of 1000 parts of one liter which implies 2,481.3 pulses
per m3. So, the K-factor is 2,481.3. Enter for SETUP - 13:
"2481300" and for SETUP - 14 - decimals K-factor "3".
Example 2: Calculating the K-factor.
Let us assume that the flowmeter generates 6.5231 pulses per
gallon and the selected measurement unit is gallons. So, the K-
Factor is 6.5231. Enter for SETUP - 13: "6523100" and for
SETUP - 14 decimals K-factor "6".
DECIMALS K-FACTOR
14
This setting determines the number of decimals for the K-factor entered.
(SETUP 13). The following can be selected:
0 - 1 - 2 - 3 - 4 - 5 - 6
Please note that this setting influences the accuracy of the K-factor
indirectly. (i.e. the position of the decimal point and thus the value given)
This setting has NO influence on the displayed number of digits for total
(
SETUP 12
)
!

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2 – FLOW RATE
The settings for total and flow rate are entirely separate. In this way, different units of measurement
can be used for each e.g. cubic meters for total and liters for flow rate.
The display update time for flow rate is one second or more.
Note: these settings also influence the analog output.
MEASUREMENT UNIT
21
SETUP - 21 determines the measurement unit for flow rate.
The following units can be selected:
mL - L - m3 - mg - g - kg - ton - GAL - bbl - lb - cf - REV -
no unit - scf - Nm3 - NL - P.
Alteration of the measurement unit will have consequences for operator
and SETUP-level values.
Please note that the K-factor has to be adapted as well; the calculation is
not done automaticall
y
.
TIME UNIT
22
The flow rate can be calculated per second (SEC), minute (MIN), hour
(
HR
)
or da
y
(
DAY
)
.
DECIMALS
23
This setting determines for flow rate the number of digits following the
decimal point. The following can be selected:
00000 - 1111.1 - 2222.22 - 3333.333
K-FACTOR
24
With the K-factor, the flowmeter pulse signals are converted to a flow rate.
The K-factor is based on the number of pulses generated by the
flowmeter per selected measurement unit (SETUP 21), for example per
liter. The more accurate the K-factor, the more accurate the functioning of
the s
y
stem will be. For examples read SETUP 13.
DECIMALS K-FACTOR
25
This setting determines the number of decimals for the K-factor
(SETUP 24). The following can be selected:
0 - 1 - 2 - 3 - 4 - 5 - 6
Please note that this SETUP - influences the accuracy of the K-factor
indirectly.
This setting has NO influence on the displayed number of digits for "flow
rate"
(
SETUP 23
)
!
CALCULATION
26
The flow rate is calculated by measuring the time between a number of
pulses, for example 10 pulses. The more pulses the more accurate the
flow rate will be. The maximum value is 255 pulses.
Note: this setting does influence the update time for the analog output
directly (maximum update 10 times a second). If the output response is
too slow, decrease the number of pulses.
Note: the lower the number of pulses, the higher the power consumption
of the unit will be (important for battery powered applications).
Note: for low frequency applications (below 10Hz): do not program more
than 10 pulses else the update time will be very slow.
Note: for high frequency application (above 1kHz) do program a value of
50 or more pulses.
CUT-OFF TIME
27
With this setting, you determine a minimum flow requirement thresh-hold,
if during this time less than XXX-pulses (SETUP 26) is generated, the flow
rate will be displayed as zero.
The cut-off time has to be entered in seconds - maximum time is 999
seconds
(
about 15 minutes
)
.

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3 - DISPLAY
FUNCTION
31
The large 17mm digits can be set to display total or flow rate.
When "total" is selected, both total and flow rate are displayed
simultaneously.
When "flow rate" is selected, only flow rate will be displayed with it’s
measurin
g
unit while total will be displa
y
ed after pressin
g
SELECT.
4 - POWER MANAGEMENT
LCD NEW
41
The calculation of the display-information influences the power
consumption significantly. When the application does not require a fast
display update, it is strongly advised to select a slow refresh rate.
Please understand that NO information will be lost; every pulse will be
counted and the output signals will be generated in the normal way.
The following can be selected:
Fast - 1 sec - 3 sec - 15 sec - 30 sec - off.
Note: after a button has been pressed by the operator - the display
refresh rate will always switch to FAST for 30 seconds. When "OFF" is
selected, the display will be switched off after 30 seconds and will be
switched on as soon as a button has been pressed.
BATTERY-MODE
42
The unit has two modes: operational or shelf.
After "shelf" has been selected, the unit can be stored for several years; it
will not count pulses, the display is switched off but all settings and totals
are stored. In this mode, power consumption is extremely low.
To wake up the unit a
g
ain, press the SELECT-ke
y
twice.

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5 - FLOWMETER
SIGNAL
51
The flow rate/totaliser is able to handle several types of input signal. The
type of flowmeter pickup / signal is selected with SETUP 51.
Note: The selections "active pulse" offers a detection level of 50% of the
supply voltage.
TYPE OF SIGNAL EXPLANATION RESISTANCE FREQ./M
V
REMARK
NPN NPN input 100K
pull-up
6 kHz (open collector)
NPN - LP NPN input
with low pass filter
100K
pull-up
2.2 kHz (open collector)
less sensitive
REED Reed-switch input 1M
pull-up
1.2 kHz
REED - LP Reed-switch input
with low pass filter
1M
pull-up 120 Hz Less sensitive
PNP PNP input 100K
pull-down 6 kHz
PNP - LP PNP input
with low pass filter
100K
pull-down 700 Hz Less sensitive
NAMUR Namur input 820 Ohm
pull-down 4 kHz External power
required
COIL HI High sensitive
sine-wave (coil) input - 20mVp-p
Sensitive for
disturbance!
COIL LO Low sensitive
sine-wave (coil) input - 90mVp-p Normal sensitivity
ACT_8.1 Active pulse input
8.1 VDC
3K9 10KHz
External power
required
ACT_12 Active pulse input
12 VDC
4K 10KHz
External power
required
ACT_24 Active pulse input
24 VDC
3K 10KHz
External power
required

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6 - LINEARISATION
The linearization function is available to approach the real flow curve better as with the general
K-factor (KF0) entered with setup 14 and 24. This to obtain a more accurate flow rate, total and
accumulated total as well as the analog and pulse output at any flowmeter frequency.
A maximum of 15 linearization-positions can be entered while the interpolation will calculate any
other position in-between.
For each linearization position, the frequency and a Meter Factor (MF) must be entered.
The Meter Factor for each frequency is calculated with following formula:
Meter-Factor = K-Factor at flow rate X
KF0
The lowest frequency and MF you enter will be valid from 0Hz. The highest frequency and MF will
be valid till 10KHz. It is advised to enter the frequencies in increasing order, however it is not
necessary. Please have a look at following example to understand the method of linearization:
FREQUENCY /
M-FACTOR
61 TO 6F
The frequency is displayed at the bottom line of the display.
The maximum frequency is 9,999.9 Hz. With value 0.0Hz, the M-Factor is
disabled. (Please read Setup function 6H - decimals frequency)
The M-Factor is displayed at the top-line of the display. The minimum
value to be entered is 0.000001 and the maximum value is 9.999999.
Please note that this value has always six decimals while the "dot" is not
displayed.
Most M-factors will be around 1.000000 like 0.945354 or 1.132573.
DISABLE / ENABLE
6G
With this setup function, you can easily enable / disable the linearization
function.
DECIMALS
FREQUENCY
6H
For the frequency, following decimal positions can be selected:
00000 - 1111.1 - 222.22 - 33.333

electronic option G0/H0/I0/K0/L0
page 18 electronic option G0/H0/I0/K0/L0 K06/0422
7 - ANALOG OUTPUT
A linear analog 4-20 mA signal is generated according to the flow rate with a 10 bits resolution. The
settings for flow rate (SETUP - 2) influence the analog output directly.
The relationship between rate and analo
g
output is set with the followin
g
functions:
DISABLE / ENABLE
71
The analog output can be disabled.
In case of a passive analog output type AP, 3.5 mA will be generated if a
power supply is available but the output is disabled.
MINIMUM FLOW RATE
72
Enter here the flow rate at which the output should generate the minimum
signal (4 mA) - in most applications at flow rate "zero".
The number of decimals displayed depends upon SETUP 23.
The time and measuring units (L/min for example) depend upon SETUP
21 and 22 but are not displa
y
ed.
MAXIMUM FLOW
RATE
73
Enter here the flow rate at which the output should generate the maximum
signal (20 mA) - in most applications at maximum flow.
The number of decimals displayed depends upon SETUP 23.
The time and measuring units (L/min for example) depend upon SETUP
21 and 22 but cannot be displa
y
ed.
CUT-OFF
74
To ignore leakage of the flow for example, a low flow cut-off can be set as
a percentage of the full range of 16 mA.
When the flow is less than the required rate, the current will be the
minimum signal (4 mA).
Examples:
4MA
(SETUP
72
)
20MA
(SETUP
73
)
CUT-OFF
(SETUP 74)
REQUIRED RATE OUTPUT
0 L/min 100 L/min 2%
(
100-0
)
*2% = 2.0 L/min 4+
(
16*2%
)
= 4.32mA
20 L/min 800 L/min 3.5% (800-20)*3.5%= 27.3 L/min 4+(16*3.5%)=4.56mA
TUNE MIN / 4MA
75
The initial minimum analog output value is 4 mA. However, this value
might differ slightly due to external influences such as temperature for
example. The 4 mA value can be tuned precisely with this setting.
 Before tuning the signal, be sure that the analog signal is not
being used for any application!
After pressing PROG, the current will be about 4 mA. The current can be
increased / decreased with the arrow-keys and is directly active. Press
ENTER to store the new value.
Remark: the analog output value can be programmed “up-side-down” if
desired, so 20mA at minimum flow rate for example!
TUNE MAX / 20MA
76
The initial maximum analog output value is 20 mA. However, this value
might differ slightly due to external influences such as temperature for
example. The 20mA value can be tuned precisely with this setting.
 Before tuning the signal, be sure that the analog signal is not
being used for any application!
After pressing PROG, the current will be about 20mA. The current can be
increased / decreased with the arrow-keys and is directly active. Press
ENTER to store the new value.
Remark: the analog output value can be programmed “up-side-down” if
desired, so 4mA at maximum flow rate for example!
Continued next pa
g
e >>>

electronic option G0/H0/I0/K0/L0
electronic option G0/H0/I0/K0/L0 K06/0422 page 19
7 - ANALOG OUTPUT (CONTINUED)
FILTER
77
This function is used to stabilize the analog output signal.
The output value is updated every 0.1 second. With the help of this digital
filter a more stable but less precise reading can be obtained.
The filter principal is based on three input values: the filter level (01-99),
the last analog output value and the last average value. The higher the
filter level, the longer the response time on a value change will be.
Below, several filter levels with their response times are indicated:
FILTER VALUE RESPONSE TIME ON STEP CHANGE OF ANALOG VALUE.
TIME IN SECONDS
50% INFLUENCE 75% INFLUENCE 90% INFLUENCE 99% INFLUENCE
01 filter disabled filter disabled filter disabled filter disabled
02 0.1 second 0.2 second 0.4 second 0.7 second
03 0.2 second 0.4 second 0.6 second 1.2 seconds
05 0.4 second 0.7 second 1.1 seconds 2.1 seconds
10 0.7 second 1.4 seconds 2.2 seconds 4.4 seconds
20 1.4 seconds 2.8 seconds 4.5 seconds 9.0 seconds
30 2.1 seconds 4 seconds 7 seconds 14 seconds
50 3.5 seconds 7 seconds 11 seconds 23 seconds
75 5.2 seconds 10 seconds 17 seconds 34 seconds
99 6.9 seconds 14 seconds 23 seconds 45 seconds

electronic option G0/H0/I0/K0/L0
page 20 electronic option G0/H0/I0/K0/L0 K06/0422
8 - PULSE OUTPUT
One transistor or mechanic relay output is available as scaled pulse output according to the accumulated
total.
PERIOD TIME
PULSE OUTPUT
81
The period time determines the time that the transistor or relay will be switched;
in other words the pulse length. The minimum time between the pulses is as long
as the selected period time.
One period is approx. 7.8 msec. If the value selected is “zero”, the pulse output
is disabled. The maximum value is 255 periods.
Note: If the frequency should go out of range - when the flow rate increases for
example - an internal buffer will be used to "store the missed pulses": As soon as
the flow rate reduces again, the buffer will be "emptied".
It might be that pulses will be missed due to a buffer-overflow, so it is advised to
program this setting within it's range.
If a mechanic relay is used for the pulse output, it is recommended to reduce the
max. output frequenc
y
to 0.5Hz, else the life time will be reduced significantl
y
.
NUMBER OF PERIODS PERIOD TIME MAX.FREQUENCY
0 disabled disabled
1 0,0078 seconds 64 Hz.
2 0,0156 seconds 32 Hz.
3 0,0234 seconds 21 Hz.
64 0,5000 seconds 1 Hz.
255 1,9922 seconds 0.25 Hz.
PULSE PER
82
According to the measurement unit settings for total, a pulse will be generated
every X-quantity. Enter this quantity here while taking the displayed decimal
position and measuring unit into account.
Example: Calculating the time between two pulses.
Settings for a pulse per = 10
This means that after each 10 m3, one pulse will be generated, if m3 is set for total.
Settings for a total K-factor = 27000
This is number of pulses per unit volume.
With input pulse signal of 150 Hz, it takes 1800 s until a pulse is generated.