Kobold DOG-4 User manual

DOG-4-6 electronic option
M0/N0/O0/P0
FLOW COMPUTER FOR CORRECTED GAS VOLUME
Signal input flowmeter - type P: pulse
Signal input pressure - type IA: 4-20mA
Signal input temperature - type TP: PT100 2- or 3 wire
Signal output: 4-20 mA ref. flow rate and pulse ref. volume quantity
Option: Modbus communication

electronic option M0/N0/O0/P0
page 2 electronic option M0/N0/O0/P0 K07/0422
SAFETY INSTRUCTIONS
 Any responsibility is lapsed if the instructions and procedures as described in this manual are
not followed.
 LIFE SUPPORT APPLICATIONS: The flow computer 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 computer 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 computer 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.

electronic option M0/N0/O0/P0
electronic option M0/N0/O0/P0 K07/0422 page 3
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 COMPUTER 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 computer 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.

electronic option M0/N0/O0/P0
page 4 electronic option M0/N0/O0/P0 K07/0422
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 ............................................................................................................ 10
1 - Total .......................................................................................................................... 15
2 - Flow rate .................................................................................................................... 16
3 - Display ....................................................................................................................... 17
4 - Flowmeter .................................................................................................................. 18
5 - Linearization .............................................................................................................. 19
6 - Temperature .............................................................................................................. 20
7 - Pressure .................................................................................................................... 21
8 - Equation .................................................................................................................... 22
9 - Analog output ............................................................................................................ 23
A - Impuls ....................................................................................................................... 25
B - Communication ......................................................................................................... 25
C - Others ....................................................................................................................... 26
4.Installation ................................................................................................................. 26
5.Maintenance .............................................................................................................. 30
Appendix A:Technical specification of flow computer ..................................................... 31
Appendix B:Problem solving .............................................................................................. 33
Appendix C:Communication variables............................................................................... 34
Appendix D:Factory settings for flow computer ............................................................... 38
6. EU Declaration of Conformance ............................................................................................ 40

electronic option M0/N0/O0/P0
electronic option M0/N0/O0/P0 K07/0422 page 5
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.

electronic option M0/N0/O0/P0
page 6 electronic option M0/N0/O0/P0 K07/0422
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 computer 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 computer is a microcontroller-operated display device for the calculation of the standard
volume flow and total volume flow of gases dependent on temperature and pressure. Figure 1 shows a
typical application of the flow computer.
Fig. 1: Typical application for the flow computer.

electronic option M0/N0/O0/P0
electronic option M0/N0/O0/P0 K07/0422 page 7
The flow computer 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 (4-20mA) is also factory-calibrated. Please do not change the settings in
menu points 95 and 96, as the calibration points will otherwise be altered.
The pulse output is scaled according to the volume quantity (for example, one pulse every 12m3).
The factory setting is one pulse per m3. The pulse duration can be adjusted between 0.001 and
9.999 seconds. The standard setting is 0.010 seconds.
Volume flow normalization is not active upon delivery of the flow computer and it is unable to
display normalized volume flow without temperature and pressure sensors.
If you wish to measure norm volume flow it is essential that you connect a pressure sensor (4-
20mA) and a temperature sensor (2 or 3-wire PT100). These are not included in the scope of
delivery.
1.3 Commissioning instructions
Before the DOG-… device is used with a flow computer the operator must adjust several
parameters.
1. If you make use of 2-wire temperature sensors you must set “NUMBER WIRES” in menu point 61
to 2.
2. Adjust the measuring range of the analogue pressure sensor used in menu points 72 and 73. The
factory setting for the measuring range is 2.5 bar.
3. If you make use of an absolute pressure sensor the input value for OFFSET in menu point 74
must be set to 0.000 bar.
4. If you enter the standard values in menu 82, 83, 84 and 85, the formula for conversion to the
norm volume flow is activated. It is not essential that the unit be changed from m3/h to the
standardised unit Nm3/h. It has no effect on the calculation of the norm volume flow.
5. You can deactivate the compressibility factor if you set one value in menu points 84 or 85 to zero.
If you wish to deactivate normalization completely you must set all norm values (menu points 82,
83, 84, and 85) to zero.
2. OPERATIONAL
2.1. GENERAL
 The flow computer 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 computer. This instruction is meant for users /
operators.

electronic option M0/N0/O0/P0
page 8 electronic option M0/N0/O0/P0 K07/0422
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 get 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.

electronic option M0/N0/O0/P0
electronic option M0/N0/O0/P0 K07/0422 page 9
2.3. OPERATOR INFORMATION AND FUNCTIONS
In general, the flow computer will always act function at Operator level. The information
displayed is dependent upon the SETUP-settings. The signal generated by the connected
flowmeter is measured by the flow computer 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.
Fig. 3: Example of display information during process.
For the Operator, the following functions are available:
 Display ‘calculated flow rate / total’ or only ‘calculated flow rate’
This is the main display information of the flow computer. After selecting any other
information, it will always return to this main display automatically.
Total is displayed at the upper-line of the display and Flow rate and Accumulated Total on
the bottom line.
Possibly, only Flow rate will be displayed with the large 17mm digits; do press the
SELECT-key to read the Total. When "-------" is shown, 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 in this
stage, press another key as CLEAR or wait for 20 seconds.
Re-initialization of total DOES NOT influence the accumulated total.
 Display calculated 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.
 Display line pressure
After pressing SELECT, the actual measured pressure is displayed.
 Display line temperature
After pressing SELECT, the actual measured temperature is displayed.
RUN

electronic option M0/N0/O0/P0
page 10 electronic option M0/N0/O0/P0 K07/0422
DISPLAY ALARMS
 Out of Range
When "(-)9999" is displayed, the frequency is out of range of the low or high limit settings.
Fig. 4: Example of Out of Range alarm.
 Alarm 01-03
When "alarm" is displayed, please consult Appendix B: Problem Solving.
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 computer 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 computer 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 computer remains fully operational.
Note: A password may be required to enter SETUP. Without this password access to SETUP is
denied.
To enter SETUP-level:

electronic option M0/N0/O0/P0
electronic option M0/N0/O0/P0 K07/0422 page 11
Matrix structure SETUP-level:
SCROLLING THROUGH SETUP-LEVEL
Selection 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 function. Additionally, each function is expressed with a
keyword.
After selecting a sub-function, the next main function is selected after scrolling through all
"active" sub-functions (e.g. 1, 11, 12, 13, 14, 1, 2, 3, 31 etc.).

electronic option M0/N0/O0/P0
page 12 electronic option M0/N0/O0/P0 K07/0422
To change or a select a value or value:
To change a value, use  to select the digits and  to increase that value.
To select a setting, both  and  can be used.
When the new value is not valid, 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.

electronic option M0/N0/O0/P0
electronic option M0/N0/O0/P0 K07/0422 page 13
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 FLOW RATE
21 UNIT mL - L - m3 - mg - g - kg - ton - GAL -
bbl -
lb - cf - REV - no unit - scf - Nm3 - NL - P
22 TIME UNIT 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 1 - 99
3 DISPLAY
31 FUNCTION total - rate
32 LIGHT
)
0% – 20% - 40% - 60% - 80% - 100% (FULL BRIGHTNESS)
 33 LCDUPDATE fast - 1 sec - 3 sec - 15sec - 30 sec - off
 34 BATTERYMODE operational - shelf
4 FLOWMETER
41 SIGNAL npn - npn_lp - namur
42 LO LIMIT 000.0 – 999.9
43 HI LIMIT 000.0 – 999.9
5 LINEARISATION
51 FREQ. / FLOW RATE 1 0.01 – 999,99 Hz / 0000.001 – 9999999
52 FREQ. / FLOW RATE 2 0.01 – 999,99 Hz / 0000.001 – 9999999
53 FREQ. / FLOW RATE 3 0.01 – 999,99 Hz / 0000.001 – 9999999
54 FREQ. / FLOW RATE 4 0.01 – 999,99 Hz / 0000.001 – 9999999
55 FREQ. / FLOW RATE 5 0.01 – 999,99 Hz / 0000.001 – 9999999
56 FREQ. / FLOW RATE 5 0.01 – 999,99 Hz / 0000.001 – 9999999
57 FREQ. / FLOW RATE 7 0.01 – 999,99 Hz / 0000.001 – 9999999
58 FREQ. / FLOW RATE 8 0.01 – 999,99 Hz / 0000.001 – 9999999
59 FREQ. / FLOW RATE 9 0.01 – 999,99 Hz / 0000.001 – 9999999
5A FREQ. / FLOW RATE 10 0.01 – 999,99 Hz / 0000.001 – 9999999
5B FREQ. / FLOW RATE 11 0.01 – 999,99 Hz / 0000.001 – 9999999
5C FREQ. / FLOW RATE 12 0.01 – 999,99 Hz / 0000.001 – 9999999
5D FREQ. / FLOW RATE 13 0.01 – 999,99 Hz / 0000.001 – 9999999
5E FREQ. / FLOW RATE 14 0.01 – 999,99 Hz / 0000.001 – 9999999
5F FREQ. / FLOW RATE 15 0.01 – 999,99 Hz / 0000.001 – 9999999

electronic option M0/N0/O0/P0
page 14 electronic option M0/N0/O0/P0 K07/0422
6 TEMPERATURE
61NR.OFWIRES 2 - 3
62FILTER 1 - 99
63DISPLAY °C - °F - K
7 PRESSURE
71UNIT mbar - bar- psi
72SPAN 0.000001 - 9,999,999 unit
 73 DECIMALSSPAN 0 - 6
74OFF‐SET 0.000 - 9,999.999 unit
75FILTER 1 - 99
 76 CALIBRATELOW default - calibrate - calibrate set
 77 CALIBRATEHIGH default - calibrate - calibrate set
8 EQUATION
 81 EQUATIONSTYPE EG - (fixed)
82NORMALTEMPERAT. 0.000 - 9,999.999
83NORMALPRESSURE 0.000 - 9,999.999
84NORMALCOMPRESS. 0 - 9,999,999
 85 COMPRESSIBILITY 0 - 9,999,999
9 ANALOG
91OUTPUT disable - enable
92Rate‐Min(4mA) 0000.000 - 9,999,999
 93 Rate‐Max(20mA) 0000.000 - 9,999,999
94CUT‐OFF 0.0 - 9.9%
 95 TUNEMIN‐4mA/0V 0 - 9,999
 96 TUNEMAX‐20mA/10V 0 - 9,999
97FILTER 1 - 99
A IMPULSE
A1
PULSE WIDTH 0.000 - 9.999 sec (0 = off)
A2
DECIMALS 0 – 1 - 2 - 3
A3
AMOUNT 0000.001 – 9,999,999 (ref. A2)
B COMMUNICATION
B1SPEED/BAUDRATE 1200 - 2400 - 4800 - 9600
B2ADDRESS 1 - 255
B3MODE rtu - off
C OTHERS
C1MODEL DOG-..
 C2 TYPE M-N
 C3 SOFTWAREVERSION 03.01.XX
C4SERIALNO.
C5PASSWORD 0000 - 9999
C6TAGNUMBER 0000000 - 9999999

electronic option M0/N0/O0/P0
electronic option M0/N0/O0/P0 K07/0422 page 15
3.2.3. EXPLANATION SETUP-FUNCTIONS
1 - Total
MEASUREMENT
11
SETUP - 11 determines the measurement unit for total and accumulated total. 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 and accumulated total 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 2481.3 pulses per m3. So, the K-factor is 2481.3. 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
(SETUP 13). The following can be selected:
0 - 1 - 2 - 3 - 4 - 5 - 6
Please note that this function influences the accuracy of the K-factor indirectly.
This settin
g
has NO influence on the displa
y
ed number of di
g
its for total
(
SETUP 12
)
!

electronic option M0/N0/O0/P0
page 16 electronic option M0/N0/O0/P0 K07/0422
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 day (DAY).
Sec – Min – Hr – 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 counting the number of pulses within a
certain time, for example 1 second. The longer the time the more accurate
the flow rate will be. The maximum value is 999.9 seconds.
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 shorter the time, the higher the power consumption of the unit will
be
(
important for batter
y
powered a
p
p
l
ications
)
.

electronic option M0/N0/O0/P0
electronic option M0/N0/O0/P0 K07/0422 page 17
3 - Display
When used with the internal battery option, the user may hold the concern of reliable measurement
over a long period of time. The flow computer has several smart power management functions to
extend the batter
y
life time si
g
nificantl
y
. Two of these functions can be set:
FUNCTION
31
The large 17mm digits can be set to display total or flow rate.
 "total": both total and flow rate are displayed simultaneously.
 "rate": only flow rate will be displayed with its measuring unit
while total will be displa
y
ed after pressin
g
SELECT.
LIGHT (BACKLIGHT
BRIGHTNESS)
32
Thedensityofthebacklightcanbesetinfollowingrange:

0%(OFF)–20%‐40%‐60%‐80%‐100%(FULLBRIGHTNESS)
LCD UPDATE
33
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; the input signal will be
processed normally as well as the output-signals. The following can be
selected:
Fast - 1 sec - 3 sec - 15 sec - 30 sec - off.
Example Battery life-time
battery life-time with a FAST update: about 2 years.
battery life-time with a 1 sec update: about 5 years.
Note: after a button has been pressed by the operator - the display
refresh-rate will always be FAST during 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
34
The unit has two modes: operational or shelf.
After "shelf" has been selected, the unit can be stored for several years; it
will not process the signal, 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.

electronic option M0/N0/O0/P0
page 18 electronic option M0/N0/O0/P0 K07/0422
4 - Flowmeter
SIGNAL
41
The flow computer is able to handle several types of signals. The type of
flowmeter pickup / signal is selected with SETUP 41.
Note: The selections "active pulse" offers a detection level of 50 % of the
supply voltage.
Read also par. 4.4.3. Flowmeter input terminal 09-11.
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
NAMUR Namur input 820 Ohm
pull-down
4 kHz External power
required
LO LIMIT
42
A low frequency limit with two decimals (12.34) can be entered.
To indicate the pulse frequency is lower than the frequency lo-limit:
• The flow rate will be set to its lowest possible value e.g. -9999.
• The analog output will drive the lowest current possible (< 4mA).
When the frequency is lower than Flo limit, the totalizer functionality is
stopped, preventin
g
an
y
additions.
HI LIMIT
43
A high frequency limit with two decimals (12.34) can be entered.
To indicate the pulse frequency is higher than the frequency hi-limit:
• The flow rate will be set to its highest possible value e.g. 9999.
• The analog output will drive the lowest current possible (< 4mA).
Furthermore, totalization will continue, unless the extrapolated flow rate is
<= 0.

electronic option M0/N0/O0/P0
electronic option M0/N0/O0/P0 K07/0422 page 19
5 - Linearization
The linearization function is available to approach the real flowcurve better as with the general K-factor
entered with setup 14 and 24. This to obtain a more accurate flow rate, total and accumulated total as
well as a 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 or extrapolation for any other position outside.
In each linearization entry, a frequency and its according flow rate can be entered.
When the frequency at the linearization entry is set to 0.00Hz, the entry is not used in the linearization.
The frequency ranges from 0.00Hz till 999.99Hz and is fixed on 2 decimals. 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:
Flo
Fhi
Flow rate
F lo limit F hi limit
extrapolated
flow rate values extrapolated
flow rate values
Note: When the extrapolated flow rate is below zero (<0), the error detection is activated (this means
showing -9999, analog output on minimum value, no totalizing action). The unit will never
calculate with negative numbers!
Note: Extrapolation uses the two closest points in the linearization table.
Frequencies between F lo – F limit lo will extrapolate using the two lowest entries in the
linearization table.
Frequencies between F hi – F limit hi will extrapolate using the two highest entries in the
linearization table.
Note: The limits provided by the F limit ranges (F limit lo and F limit hi) will overrule any calculation
from the linearization table. This means that when a frequency outside the F limit range is
entered in the linearization table, the calculations will only support that entry until the frequency
of the F limit lo or F limit hi is reached. Below or above that range, the error detection takes
over.

electronic option M0/N0/O0/P0
page 20 electronic option M0/N0/O0/P0 K07/0422
FREQ / FLOW RATE
1-15
51
The frequency is displayed at the bottom line of the display.
The maximum frequency is 999.99 Hz. When the frequency at the
linearization entry is set to 0.00Hz, the entry is not used in the
linearization.
The Flow rate 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.
Note: The number of decimals used for the flow rate is equal to the
number chosen at setup 23. Therefore always configure setup
23 before filling in the linearization entries.
6 - Temperature
Conversion formula’s temperature units:
xK = (x-273,15)°C = (9/5x-459,67)°F
x°C = (x+273,15)K = 9/5x+32°F
x°F = 5/9
(
x-32
)
°C = 5/9
(
x+459,67
)
K
NO. OF WIRES
61
Do select here the number of wires of the two PT100 elements - two or three
.
FILTER
62
The output signal of a sensor does mirror the actual temperature. This
signal is measured several times a second. The value measured is a
“snap-shot” of the real temperature as it will be fluctuating.
With the help of this digital filter a stable and accurate reading can be
obtained while the filter level can be set to a desired value.
The filter principal is based on three input values: the filter level (01-99),
the last measured analog value and the last average value. The higher
the filter level, the lon
g
er the response time on a value chan
g
e will be.
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
10 1.8 seconds 3.5 seconds 5.6 seconds 11 seconds
20 3.5 seconds 7.0 seconds 11 seconds 23 seconds
30 5.3 seconds 10 seconds 17 seconds 34 seconds
50 8.8 seconds 17 seconds 29 seconds 57 seconds
75 13 seconds 26 seconds 43 seconds 86 seconds
99 17 seconds 34 seconds 57 seconds 114 seconds
DISPLAY UNIT
63 SETUP - 63 determines the displayed unit for the Operator
The following units can be selected: °C‐°F‐K