Simex SPP-N118 User manual

Assisting the automation
industry since 1986
User manual
FLOW METER
PP-N118
•Firmware: up to v. 5.
•Input type: 0/4-20 mA
•Batching and tota izer function
Read the user's manual carefully before starting to use the unit or software.
Producer reserves the right to implement changes without prior notice.
2013.08.1 SPP-N118_INSSXEN_v.2.05.001
11
Microlectra bv.
Microlectra bv.
Augustapolder 12. 2992 SR Barendrecht. The Netherlands.
www.microlectra.nl [email protected]

User manual for - FLOW METER SPP-N118
CONTENTS
1. BASIC REQUIREMENTS AND USER SAFETY........................................................................................3
2. GENERAL CHARACTERISTICS................................................................................................................4
3. TECHNICAL DATA......................................................................................................................................5
4. DEVICE INSTALLATION............................................................................................................................6
4.1. UNPACKING.......................................................................................................................................7
4.2. ASSEMBLY........................................................................................................................................7
4.3. CONNECTION METHOD...................................................................................................................8
4.4. MAINTENANCE................................................................................................................................12
5. FRONT PANEL DESCRIPTION................................................................................................................13
6. PRINCIPLE OF OPERATION...................................................................................................................13
6.1. MEASUREMENT MODE..................................................................................................................14
6.2. DETECTION OF THE PEAK VALUES............................................................................................17
6.3. CONTROL OF THE RELAY OUTPUTS..........................................................................................18
6.3.1. On thr shold mod ................................................................................................................20
6.3.2. Two thr sholds mod ..............................................................................................................21
6.3.3. Batch r mod and „PrE r1” mod ...........................................................................................22
6.3.4. Us of th batch r count r as a mark r.................................................................................23
7. DEVICE PROGRAMMING.........................................................................................................................24
7.1. PROGRAMMING MENU..................................................................................................................24
7.2. PARAMETERS EDITION.................................................................................................................25
7.2.1. Num ric param t rs (digit chang mod )...............................................................................25
7.2.2. Num ric param t rs (slid chang mod )..............................................................................25
7.2.3. Switch param t rs (“LIST” typ ).............................................................................................25
7.3. MENU DESCRIPTION.....................................................................................................................26
7.3.1. “rELAy1” m nu........................................................................................................................26
7.3.2. “FLouu” m nu..........................................................................................................................29
7.3.3. “bAtCH” m nu.........................................................................................................................33
7.3.4. “totAL” m nu............................................................................................................................34
7.3.5. “Pr inP” m nu..........................................................................................................................34
7.3.6. “Init d” param t r.....................................................................................................................35
7.3.7. “FiLtEr” m nu..........................................................................................................................35
7.3.8. ”briGHt” param t r..................................................................................................................35
7.3.9. ”HOLd” m nu...........................................................................................................................36
7.3.10. ”SECU” m nu........................................................................................................................36
7.3.11. ”rS-485” m nu.......................................................................................................................37
7.3.12. ”Edit t” param t r..................................................................................................................38
7.3.13. ”dEFS” param t r..................................................................................................................38
7.3.14. ”SErv” m nu..........................................................................................................................38
7.4. MENU STRUCTURE........................................................................................................................39
8. OVER CURRENT PROTECTION.............................................................................................................41
9. DISPLAYED VALUES CALCULATION....................................................................................................41
9.1. ADDITIONAL CALCULATIONS (USED CONVERSION CHARACTERISTIC)...............................41
9.1.1. Lin ar charact ristic................................................................................................................41
9.1.2. Squar charact ristic..............................................................................................................42
9.1.3. Squar root charact ristic.......................................................................................................43
9.1.4. Us r d fin d charact ristic.....................................................................................................43
9.2. EXAMPLES OF CALCULATIONS...................................................................................................44
10. THE MODBUS PROTOCOL HANDLING...............................................................................................47
10.1. LIST OF REGISTERS....................................................................................................................48
10.2. TRANSMISSION ERRORS DESCRIPTION..................................................................................53
10.3. EXAMPLES OF QUERY/ANSWER FRAMES...............................................................................53
11. DEFAULT AND USER'S SETTINGS LIST.............................................................................................56
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User manual for - FLOW METER SPP-N118
Explanation of symbols used in the manual:
- This symbol d not s sp cially important guid lin s conc rning th installation and
op ration of th d vic . Not complying with th guid lin s d not d by this symbol
may caus an accid nt, damag or quipm nt d struction.
IF THE DEVICE IS NOT USED ACCORDING TO THE MANUAL THE USER IS
RESPONSIBLE FOR POSSIBLE DAMAGES.
- This symbol d not s sp cially important charact ristics of th unit.
R ad any information r garding this symbol car fully
1. BASIC REQUIREMENTS AND USER SAFETY
-


- Installation should be conducted by qualified personnel . During installation all
available safety requirements should be considered. The fitter is responsible for
executing the installation according to this manual, local safety and EMC
regulations.
- GND input of device should be connected to PE wire;
- The unit must be properly set-up, according to the application. Incorrect
configuration can cause defective operation, which can lead to unit damage or
an accident.
-


-


- Neighbouring and connected equipment must meet the appropriate standards
and regulations concerning safety and be equipped with adequate overvoltage
and interference filters.
-


- Do not use the unit in areas threatened with excessive shocks, vibrations, dust,
humidity, corrosive gasses and oils.
- Do not use the unit in areas where there is risk of explosions.
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User manual for - FLOW METER SPP-N118
- Do not use the unit in areas with significant temperature variations, exposure to
condensation or ice.
- Do not use the unit in areas exposed to direct sunlight.
- Make sure that the ambient temperature (e.g. inside the control box) does not
exceed the recommended values. In such cases forced cooling of the unit must
be considered (e.g. by using a ventilator).


2. GENERAL CHARACTERISTICS
Main task of !!"#$$%is measurement of instantaneous flow (flow rate), and counting of
total flow (e.g. passage of fluid or gas ), The device can be used as regulator, to control
industrial process. Measurement of instantaneous flow can be indicated in range: 0 to 9999
(plus decimal point) and can be expressed in combination of two cubic measures (Litre and
m3) and three time measures (second, minute, hour). Total flow can be indicated in range
from 0.000 to 29 967295 m3 with maximum resolution of 0.001 L.
!!"#$$% can cooperate with flow sensors with current output (0-20mA or -20mA).
Sensors can be powered from sensor supply output (stabilized, 2 VDC +5%, -10% 100mA).
The device can be equipped with two relay (or OC type) outputs, which can be driven due
to instantaneous flow, total flow or batcher counter value. Optionally !!"#$$%with two relays
outputs can be equipped with active current output. Build in RS 85 interface enables access
to all internal registers, and supports MODBUS RTU communication protocol. The controller
can be ordered in two power supply versions. The meter can be ordered in three power supply
versions.
The device has 5 buttons being used for main presets programming. To get high
protection level, the keyboard is mounted under transparent cover. To allow user to change
presets without opening the cover, an IR sensor is mounted. Remote controller keyboard is
equivalent to the device keyboard (Note, that remote controller is not a part of the !!"#$$%
set – it is an additional equipment).
Additional features:
• alarm preset; alarm signal is released when measurement exceeds measurement range
• direct access to relays thresholds settings, without password,
• batcher mode.
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User manual for - FLOW METER SPP-N118
3. TECHNICAL DATA
Power supply voltage
(depending on version)
230V AC ± 10%, 50 ÷ 60 Hz (separated)
or 110V AC ± 5%, 50 ÷ 60 Hz (separated)
or 2 V AC ± 5%, 50 ÷ 60 Hz (separated)
or 2 V DC ± 15%, (not separated)
External fuse (required)
Power consumption
T - type, max. 2 A
max. 2.6 VA @ 230V AC and @ 110V AC
max. .5 W @ 2 V DC
Current input 0÷20 mA, ÷20 mA overload protected,
maximum input current about 0 mA
Programmable input
low level:
high level:
not separated
0V ÷ 1V
10V ÷ 30V (about. 12 mA @ 2 V)
Outputs
relay:
or OC-type:
sensor power supply UO:
0 or 2 NO, 1A/250V AC (cos ϕ = 1)
0 or 2 30mA / 30VDC / 100mW
not stabilized, not separated from measuring inputs,
in 230V AC and 110V AC and 2 V AC version:
UO = 2 V DC ± 3V / max. 25 mA;
in 2 V DC version:
UO = US / max. 100 mA, RO = 30 Ω,
(where US - device power supply, RO - internal
resistance for sensor power supply output);
Instantaneous flow range 0 ÷ 9999, plus decimal point
Current measurement accuracy ± 0,1% @ 25°C; ± one digit (for 0÷20 mA range)
Accepted prolonged input overload: 20%
Measurement input resistance: 50 Ω
Temperature stability 50 ppm / °C
Instantaneous flow precision Selected from range: 0 ÷ 0.000
Instantaneous flow unit L or m3 per min. or sec. or hour
Total flow range over x 109 m3 (max. 16 digits )
Total flow precision Selected from range: 0 ÷ 0.000
Total flow unit L or m3
Batcher counter range 65536 m3
Batcher counter precision Selected from range: 0 ÷ 0.000
Batcher counter unit L or m3
Number of batches counter range 0 ÷ 999999
Communication interface RS 85, 8N1 and 8N2, Modbus RTU, not separated
Baud rate 1200 bit/s ÷ 115200 bit/s
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User manual for - FLOW METER SPP-N118
Display LED, 6 digit, 13mm height, red
Data memory non-volatile memory, EEPROM type
Protection level IP 65
Housing type
Housing material
Housing dimensions
without glands:
with glands:
wall mounted
ABS + fibreglass
110 x 80 x 67 mm
110 x 105 x 67 mm
Operating temperature
(depending on version)
0°C to +50°C
or -20°C to +50°C
Storage temperature
(depending on version)
-10°C to +70°C
or -20°C to +70°C
Humidity
Altitude
5 to 90% no condensation
up to 2000 meters above sea level
Screws tightening max. torque 0,5 Nm
Max. connection leads diameter 2,5 mm2
Safety requirements according to: PN-EN 61010-1
installation category: II
pollution degree: 2
voltage in relation to ground: 300V AC
insulation resistance: >20MΩ
insulation strength between power supply and
input/output terminal: 1min. @ 2300V
insulation strength between relays terminal:
1min. @ 1350V
EMC according to: PN-EN 61326-1
        &                      
'              '   

4. DEVICE INSTALLATION
The unit has been designed and manufactured in a way assuring a high level of user
safety and resistance to interference occurring in a typical industrial environment. In order to
take full advantage of these characteristics installation of the unit must be conducted correctly
and according to the local regulations.
- Read the basic safety requirements on page 3 prior to starting the installation.
- Ensure that the power supply network voltage corresponds to the nominal
voltage stated on the unit’s identification label.
- The load must correspond to the requirements listed in the technical data.
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User manual for - FLOW METER SPP-N118
- All installation works must be conducted with a disconnected power supply.
- Protecting the power supply clamps against unauthorized persons must be
taken into consideration.
4.1. UNPACKING
After removing the unit from the protective packaging, check for transportation damage. Any
transportation damage must be immediately reported to the carrier. Also, write down the unit
serial number on the housing and report the damage to the manufacturer.
Attached with the unit please find:
- user’s manual,
- warranty,
- assembly brackets - 2 pieces.
4.2. ASSEMBLY
- Disconnect the power supply prior to starting assembly.
- Check the connections are wired correctly prior to switching the unit on.
To install device on the wall, a pinholes should be made. Figure .1 presents
dimensions of the device and distances between holes. The back side of the device
has four mounting holes. This part of the case should be mounted to a wall by
screws.
Figur 4.1. D vic and ass mbly dim nsions
!
!
!
110 mm
80 mm
67 mm
90 mm
60 mm
ø8.
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User manual for - FLOW METER SPP-N118
4.3. CONNECTION METHOD
Caution
- Installation should be conducted by qualified personnel . During installation all
available safety requirements should be considered. The fitter is responsible for
executing the installation according to this manual, local safety and EMC
regulations.
- The unit is not equipped with an internal fuse or power supply circuit breaker.
Because of this an external time-delay cut-out fuse with minimal possible nominal
current value must be used (recommended bipolar, max. 2A) and a power supply
circuit-breaker located near the unit. In the case of using a monopolar fuse it must
be mounted on the phase cable (L).
- The power supply network cable diameter must be selected in such a way that in
the case of a short circuit of the cable from the side of the unit the cable shall be
protected against destruction with an electrical installation fuse.
- Wiring must meet appropriate standards and local regulations and laws.
- In order to secure against accidental short circuit the connection cables must be
terminated with appropriate insulated cable tips.
- Tighten the clamping screws. The recommended tightening torque is 0.5 Nm.
Loose screws can cause fire or defective operation. Over tightening can lead to
damaging the connections inside the units and breaking the thread.
- In the case of the unit being fitted with separable clamps they should be inserted
into appropriate connectors in the unit, even if they are not used for any
connections.
" (

'
- If the unit is equipped with housing, covers and sealing packing, protecting
against water intrusion, pay special attention to their correct tightening or clamping.
In the case of any doubt consider using additional preventive measures (covers,
roofing, seals, etc.). Carelessly executed assembly can increase the risk of electric
shock.
- After the installation is completed do not touch the unit’s connections when it is
switched on, because it carries the risk of electrical shock.

 

–Avoid common (parallel) leading of signal cables and transmission cables together with
power supply cables and cables controlling induction loads (e.g. contactors). Such cables
should cross at a right angle.
–Contactor coils and induction loads should be equipped with anti-interference protection
systems, e.g. RC-type.
8
!

User manual for - FLOW METER SPP-N118
–Use of screened signal cables is recommended. Signal cable screens should be
connected to the earthing only at one of the ends of the screened cable.
–In the case of magnetically induced interference the use of twisted couples of signal
cables (so-called “spirals”) is recommended. The spiral (best if shielded) must be used
with RS- 85 serial transmission connections.
–In the case of measurement or control signals are longer than 30m or go outside of the
building then additional safety circuits are required.
–In the case of interference from the power supply side the use of appropriate anti-
interference filters is recommended. Bear in mind that the connection between the filter
and the unit should be as short as possible and the metal housing of the filter must be
connected to the earthing with largest possible surface. The cables connected to the filter
output must not run in parallel with cables with interference (e.g. circuits controlling relays
or contactors).
Connections of power supply voltage and measurement signals are executed using the
screw connections inside of the unit’s housing.
Figur 4.2. M thod of cabl insulation r placing and cabl t rminals
) &*
) +

) ,
 !!"#$$%
9
!
6-7 mm
max. 2 mm

User manual for - FLOW METER SPP-N118
Figur 4.3. T rminals d scription (r lay outputs)
Figur 4.4. T rminals d scription (OC-typ outputs)
10
-("
$.
$/
$0
$1 $$ $2 3 %

4$ 41
56 0/.
$
1
#
7

8#
29/"12&
-
8#
&&-
&&"
4 "/%0
 


!
(depending on version)
1/: ±3V
Imax = 25 mA
(depending on version)
$.
$/
$0
$1 $$ $2 3 %
8#
&&-
&&"
4 "/%0
5 6 0 / .
$
1
  
8#
29/"12&
-;,$ ;,1
"-"
;,$;,1< Umax = 30V DC,
Imax = 30mA, Pmax = 100mW

-("#
7


!
(depending on version)
1/: ±3V
Imax = 25 mA
(depending on version)

User manual for - FLOW METER SPP-N118
D p nding on v rsion:
230V AC ± 10%
or 110V AC ± 5%
or 24V AC ± 5%
or 24V DC ± 15%
Figur 4.5. Conn ction of pow r supply and r lays
,'=
 
            '       
         /5+9    102:&,      
$22490=
       '              


a) b)
Figur 4.6. Exampl s of suppr ssion circuit conn ction:
a) to r lay t rminals; b) to th inductiv load
11
!
+( >
4$ 41
0 / .
#7
+( >
#
7
$
1
!
#
0 / 0 /
77
#
!

User manual for - FLOW METER SPP-N118
Figur 4.7. Exampl of OC-typ outputs conn ction
4.4. MAINTENANCE
The unit does not have any internal replaceable or adjustable components available to
the user. Pay attention to the ambient temperature in the room where the unit is operating.
Excessively high temperatures cause faster ageing of the internal components and shorten the
fault-free time of unit operation.
In cases where the unit gets dirty do not clean with solvents. For cleaning use warm water with
small amount of detergent or in the case of more significant contamination ethyl or isopropyl
alcohol.
Using any other agents can cause permanent damage to the housing.
Product marked with this symbol should not be placed in municipal waste. Please
check local regulations for disposal and electronic products.
12
!
5 6
(
0 /
;,1
"- -"
+
voltage input
2 V
-
Logic controller
5 6
(
0 /
;,1
"-
-"
4
11
7>$2&

User manual for - FLOW METER SPP-N118
5. FRONT PANEL DESCRIPTION
Symbols and functions of push buttons:
Symbol used in the manual:?> ,9@>#(A
Functions:
• Enter to main menu ( press and hold by at least 2 sec.)
• Exit the current level and Enter to previous menu (or measure mode)
• Cancel the changes made in parameter being edited
Symbol used in the manual:?>#>4Aor?!&( >A
Functions <
• Start to edit the parameter
• Enter to the sub-menu,
• Confirmation of changes made in parameter being edited
• While batcher mode: pause/start batching.
Symbol used in the manual:?BA?A
Functions <
• Change of the present menu,
• Modification of the parameter value,
• Switching of the display between relay thresholds and number of batches
counter
Symbol used in the manual: ?ΣAor?4> >A
Functions <
• Switching of the display between total and instantaneous measurements
or batcher counter (while batcher mode only)
• Zeroing the currently displayed counter (press and hold by at least 2
sec.), the zeroing must be confirmed by ?>#>4A button.
6. PRINCIPLE OF OPERATION
After turning the power supply on, device ID and software version are showed on the
display, next the controller goes to the measurement mode.
13

@>#(
> , >#>4
4$ C
+7
C
infrar d
r c iv r
total flow mod
and batching mod
LED indicator ( Σ )
Thr sholds xc ding LED indicators (R)
display
programming pushbuttons
41

@>#(
> ,
>#>4
Σ
+7

User manual for - FLOW METER SPP-N118
6.1. MEASUREMENT MODE
In the measure mode, device displays instantaneous measurement (flow value or time per one
unit of flow, depending on „+!” parameter value) equivalent to input current, total flow or
batcher counter value.
Instantaneous flow (flow rate) is displayed in units defined by parameter D+E (L or
m3) and D+E (min., sec. or h), with resolution defined by D!E (max. 3 digits after
decimal point). Device converts measured current to selected units accordingly to conversion
characteristic selected by user. The measurement range equal to the nominal range is called:
nominal measurement range, and the measurement range equal to the extended nominal
range is called: permissible measurement range (Figure 6.1, 6.2).
Figur 6.1. D finitions of m asur m nt rang s in mod 4 ÷ 20mA
If the result of measurement exceeds the permissible measurement range, warning E"F"E or
E"7"E is displayed rather than input signal,depends on exceeded value (see description of
D7E i DFEparameters, paragraph ”FLouu” menu).
Figur 6.2. D finitions of m asur m nt rang s in mod 0 ÷ 20mA
–If input current range is strongly overloaded, device can display improper results
–While time per one unit of flow is displayed (parameter D+!E = “!>”):
• If flow value equals 0, then 0 value is displayed.
• If value of period is to high to be fitted on 6 digits, message D";7"E
(Overload) is displayed instead of the result.
• If flow value is different than 0 but value of period is to small to be fitted on
6 digits, message D"(7"E(Underload) is displayed instead of the result.
14
”7” parameter ”F” parameter
mA 20 mA
permissible measurement range
nominal measurement range
”F” parameter
0 mA 20 mA
permissible measurement range
nominal measurement range
i

User manual for - FLOW METER SPP-N118
Total flow is displayed in units defined by parameter DE (L or m3), with resolution
defined by parameter D!>E (max 3 digits after decimal point). If total flow counter
overflows, warning DE is displayed alternatively with maximum counter value. Total flow
counter can be zeroed using D,E option of D&7E submenu, using ?Σ A button (press
and hold by at least 2 sec.), electrically via programmabl input or via RS- 85 interface by
writing of value 0000h to any of total flow counter result registers.
Zeroing by ?ΣA button can be activated using „,7” option of D&7E submenu.
Zeroing via programmabl input can be activated using „+” option of D!!E
submenu.
Parameter D,++E, allows to define input current value, below which total amount of
flow (incremented).
D,++E
                    ;&7
,;(#>4 #;#,4>@>#>
,D,E<
CT =" CutoFF" ×20mA
100 for 0÷20 mA output
CT =" CutoFF" ×16mA
100 4mA for 4÷20 mA output
Batching counter value is displayed in units defined by parameter DE(L or m3), with
resolution defined by parameter D!>E (max 3 digits after decimal point). If batcher counter
overflows, warning D&E is displayed alternatively with maximum counter value. Batching
counter can be zeroed using D,7&Eoption of D&,FE submenu, using ?ΣA button (press
and hold by at least 2 sec.), electrically via programmabl input or via RS- 85 interface by
writing of value 0000h to any of batcher counter result registers.
Zeroing by ?ΣA button can be activated using „,7” option of D&,FE submenu.
Zeroing via programmabl input can be activated using „+” option of D!!E
submenu.
 
?Σ A. Kind of displayed value is signalised by DΣE LED. It lights,
while total flow is displayed. If batcher counter is displayed then DΣE LED is pulsing.
Batching counter can be displayed while batcher mode only (set „ ,>”=”&” in
G>7&$Esubmenu).
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User manual for - FLOW METER SPP-N118
Functions of ?BA and ?A buttons depend on kind of presently displayed value:
• If instantaneous flow (flow rate) is displayed ( LED marked DΣE is off) or batcher counter
value (DΣE LED is pulsing), user can check main threshold values and numb r of batch s
count r (which indicates how many times batcher was started). After pressing ?BA or ?A
buttons, name of the threshold (e.g. E>7!$E) and its value or E&,E label and
numb r of batch s count r will be displayed on the display in alternating mode.
If ?BA or ?A will be pressed in 5 sec again, the next threshold will be displayed, else the
device comes back to the measurement mode. If a free access is enabled (see description
of ”SECu” menu), user can change the value of particular threshold pressing button
?>#>4A (see: PARAMETERS EDITION). Using ?Σ A button while numb r of batch s
count r is displayed and confirm G,7>&HE message by ?>#>4A button causes zeroing
numb r of batch s count r.
• If particular parameter has been changed and confirmed in quick view mode, its
new value is displayed in alternating mode with parameter name by few
seconds. Confirmed changes may be checked or user can switch viewed
parameter pressing ?BAor ?A button.
•Numb r of batch s counter is incremented after each start of batching process
(every first start after batcher counter zeroing).
• If batcher counter value is displayed (DΣE LED is pulsing) and counter value
exceeds 6 digits, then decimal point of the most left digit is pulsing. To view
most significant digits, it is required to decrease resolution or/and change unit to
m3.
• If total flow counter value is displayed ( LED marked DΣE is on), and its length exceeds 6
digits, buttons ?BA and ?A enable switching between more and less significant digits.
Positions of currently displayed digits are signalized by flashing decimal points (see
example below).
Example of switchin g between less and more significant digits of total flow result .
Let, total counter result be equal 12367898765 3.21:
–while less significant 6 digits are displayed, flashing most left decimal point signalizes
that result is longer than 6 digits, to show more significant digits press ?BA,
–while medium digits are displayed both most left and most right decimal points are
flashing (Figure 6.3). Most right decimal point signalizes than result has less significant
digits – to see these digits press ?A button. Most left decimal point signalizes
additional more significant digits. Press ?BA button to see these digits.
–while most significant digits are displayed, most right decimal point is flashing, and
signalising that result has less significant digits, to see these digits press ?A.
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User manual for - FLOW METER SPP-N118
?ΣA ?ΣA ?ΣA
Figur 6.3. Switching b tw n digits (scr ns) of total flow r sult.
All accessible parameters (e.g. pulse input settings, decimal point position) can be
changed by entering the menu (see: DEVICE PROGRAMMING). Use the local keyboard or
the remote controller to do it. (Note: all parameters can be remote changed via RS- 85
interface).
Counting of pulses and controlling or relays is realised regardless of operation mode
(after entering to menu mode counting and controlling is continued in “background”.
6.2. DETECTION OF THE PEAK VALUES
The !!"#$$% flow meter is equipped with peaks detection function. It can detect a
peaks of the input signal and display their values. Presets connected with this function are
placed in EF;7Emenu (see description of ”HOLd” menu). The detection of the peak can be
done if the measured signal raises and drops of value at least equal to parameter E!>&E.
Detected peaks are displayed during the time defined by parameter E>E. If a new peak will
be detected while one is displayed, this new peak will be displayed and display time counter
will be cleared(Figure 6. ). If no peaks are detected while time E>Eelapses device starts
to show the current value of input signal again. If „F ”=”F;7” then setting parameter
I>I=22 causes holding peak value until ?> ,A button is pressed.If „F ”=”>&7” then
value I>I=22 means no holding. Displaying peak value is signalized by flashing most right
decimal point.
The relays/LEDs can be controlled depend on the current value of input signal or the
peak value (see ”HOLd” menu).
1
to instantaneous flow
display mode
to instantaneous flow
display mode
to instantaneous flow
display mode
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User manual for - FLOW METER SPP-N118
Figur 6.4. Proc ss of p aks d t ction
6.3. CONTROL OF THE RELAY OUTPUTS
The control of the object (measured signal) is done due to instantaneous flow value
(current flow rate), total flow counter value or batcher counter value, and is realized via relay
outputs. Front panel LEDs named „4” indicates the state of particular relay output.
If device is not equipped with one or more relay outputs, menus refer to this relays
are available, but apply to LED indicators only. In such case LEDs indicates
exceeding of particular thresholds.
Modes of the control can be changed depend on the values of parameters D ,>E,
D >!E, D >!1E, DFJ E, D>E, DE, D++E, DE and D&7& E (available in
”>7&$” ÷ ”>7&/” menu). If relay is controlled due to total flow counter value
(D ,>E=EE), additional parameters are available in menu. Parameters D!>,E and
DE defining the unit and resolution of displayed thresholds and hysteresis of selected
relay. If relay is controlled due to batcher counter value (D ,>E=E&E), in addition
D!>,Eand DEparameters are available in menu but parameters: D >!1E,DFJ E,
D>E, DE, D++E,DE are unavailable. Parameters D!>,E and DE define
the unit and resolution of displayed thresholds and hysteresis of selected relay. Depend on
D>E parameter, relays can be not used or controlled over one or two thresholds values.
If one threshold is used (Figure 6.5) the relay can be turned on (D>E= EE) or off
(D>E= E++E) when the input signal value is contained in zone A. If two thresholds are
used (Figure 6.6) the relay will be turned on when value of input signal is contained in zone A
(D>E= EE) or zone B (D>E= EE) and turned off if the signal is contained in the
second one.
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E>E
measure
time
E>E
E!>&E
E!>&E
real measurement result
display value
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User manual for - FLOW METER SPP-N118
Figur 6.5. On thr shold control of th r lay/LED outputs
Figur 6.6. Two thr shold control of th r lay/LED outputs
The relay outputs and LEDs (named 4) can be controlled depend on both - the
current value and the peak value (when peak detection is active, for flow rate only)
of the input signal.
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zone A
zone B
measure
”SEt P” parameter
”HYSt” parameter
state of
relay/LED
zone B
zone A
zone B
measure
”SEt P” or ”SEt P2” parameter
”HYSt” parameter
state of
relay/LED
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User manual for - FLOW METER SPP-N118
6.3.1. One threshold mode
Figure 6.7 presents the principle of relay outputs operation for one threshold mode, and
an example values of other parameters.
Description:
&K, - points where measured signal exceeds border values (expected value ± allowed deviation)
K;#,K;++,;#,;++ - relays state changes moments: (for DE > 0, D++E > 0)
&,K,,,- time periods while input signal is in zone A or zone B
Figur 6.7. Principl of LED/r lay output op ration for on thr shold mod
Parameter D >!E sets a  of the relay, and parameter DFJ E sets a
 of the relay (Figure 6.7 a). The relay can change its state  when input value
exceeds (over or under) border value and tA ,tB ,tC ,tD times (Figure 6.7) are bigger than the
time defined by parameters DE, D++E and DE. Border values means values equal
threshold+hysteresis and threshold-hysteresis respectively.
If DE and D++Eparametersare set to “0”, then the relay state will be changed
 as input value exceeds any of the border values (see points A and C, Figure 6.7 a,
b, c).
If values of DE or/and D++E are positive, then relay state will be turned on if the
input value exceeds the border values and stay bigger (or lower) during at least
DE (see points BON, DON, Figure 6.7 a, d, e). Similarly, the relay will be turned off if time
D++E elapse since the input signal value exceeds any of the border values (see points
BOFF, DOFF, Figure 6.7 a, d, e).
If tA ,tB ,tC or tD (when input signal stay in zone A or zone B) are lower than parameters “t on”
or “t oFF”, the relay will not change his state (see points A and C, Figure 6.7 a, d, e).
20
D >!Eparameter
(expected signal value)
DFJ Eparameter
(allowed signal
deviation)
measured
signal
displayed value
time
time
time
&K
,
relay state
(> =
 = 0
++ = 0)
relay state
(> =
 > 0
++ > 0)
&K,
K;#
;++
relay state
(> =++
 = 0
++ = 0)
relay state
(> =++
 > 0
++ > 0)
D++E
parameter
DE
parameter
K;++
;#
time
time
closed
open
a)
b)
c)
d)
e)
open
closed
open
open
closed
closed
DE
parameter
D++E
parameter
zone A
zone B