Nokeval 2026 User manual

1
Manual
Model 2026
Totalizer / Batch controller
foranaloginputs
No 051201
Nokeval

2
Manufacturer:
Nokeval Oy
Tel. [phone]
Fax. [phone]
Yrittajakatu12
37100 Nokia, Finland
• • •
Contents
Rate / Batch controller 2026 for analog inputs............................................................3
Dimensions................................................................................................................................................ 4
Front panel indicators and buttons ......................................................................................................... 5
Configuration................................................................................................................. 5
Resetofconfigurationparameters................................................................................. 5
Settingofalarmvalue.................................................................................................... 5
Settingof alarms........................................................................................................... 5
Selection of input ..................................................................................................................................... 7
Alarm functions .............................................................................................................8
General description.................................................................................................................................. 8
Alarm card connections ........................................................................................................................... 8
Alarm settings by front panel keys.......................................................................................................... 8
Selection of alarm card and relay-function settings ...................................................9
Mainmenu.................................................................................................................... 9
Shiftinginmenu............................................................................................................ 9
Minimum and maximum value memory .............................................................................................. 10
Resetmemeory .......................................................................................................... 10
Setting of secret codes (Programming stage/ alarms) ........................................................................ 10
Terminal connections ................................................................................................. 11
Currentintput 0/4..20 mA.............................................................................................11
Voltageinput 0-10V ....................................................................................................11
Cardslots..................................................................................................................................................11
2-wire4-20mA ............................................................................................................11
Panelmeter2000construction .......................................................................12
2000 series input and option cards: ............................................................................ 13
Modular indicator serie 2000 ................................................................................................................. 13

3
Rate / Batch controller 2026 for analog inputs
• •
• •
• Input signal 0/4-20 mA, mV or 0-5/10V
• •
• •
• Kumulative counter (quantity)
• •
• •
• Mass flow display according to weighing
• •
• •
• Up or down count
• •
• •
• Rate/batch operation
• •
• •
• 6 digit display 999999
• •
• •
• Counter non-volatile memory
• •
• •
• Scalable display
• •
• •
• One alarm level for batch function
• •
• •
• Front panel protection IP65
• •
• •
• Sensor supply 24 VDC, max. 150 mA
• •
• •
• Power supply 90..240 VAC or 12..32 VDC
Counter 2026 assorts as volume counter or Batch
contollerforflowmeters.Upordowncounterhas6-digit
red or green display. Display scaling indicates flow
rate corresponding to one V/mA in time unit.
Displaymemory(optional)storescalculatedvaluefor
oneweekafterpowerbrake. Youmayusethecounter
as a batch controller by setting alarm value
correspondingdesiredbatchvolume.Optionaloutput
relay changes its stage when alarm level is reached.
Youcanstartnewcountbyresettingcounterbyremote
contact or configure unit to stars automatically new
batch. You may also determine start level (START)
fromwhichyoucancountdown(empty)orup(filling).
Configurationstagegivesuserthepossibilitytospecify
what values can be seen in display. Alternatives are
rate-of-change (flow rate), totalizer (total flow) or
scaledvalueoftheinput.Usermaychangethedisplay
betweentwo alternatives by★-key .
Calculated amount is set by front panel keys. Front
panelprotectionisIP65andmetercanbemountedto
cabinet door without protection cover.
Nokevalmakescounteralsoforpulsesensors,model
2061,separatedatasheetavailable.
Output relay closes
valve when counter
reaches setvalue.
Reset opens relay and
opens dosing valve.
Reset and start
Example:
Dose 100 litres/
batch.
Display scaled to
litres from sensor
which output is
15,3 litres / mA/
min
Closing contact
when new barrel
ready for fill up
*
100.0
Dosage
relay
Valve
Quantity
t
Flow sensor 4-20 mA
Flow rate e.g. 15,3 litres/mA/min Valve
4-20 mA
Typicalapplication

4
2026 Technical specifications:
Input 0..20 mA, 4..20 mA
0..5,0..10V
20, 50, 100, 1000 mV
Display scaling On whole display range
Input resistance current 50 ohm
voltage 1 Mohm
Accuracy 0.03% FS
Linearity 0.005% FS
Supply for sensor
24 VDC, max. 150 mA
Displayscaling
Number of digits per one mA in time unit. Time setting
in seconds
Countdirection
Up or down. Direction changed by converting input
signal.
Mass flow display of weighing sensor alteration
Fillng or emptying rate container according to weighing
sensor. Counts alternation between two measurement in
time unit. Display e.g. ton/h (rate-of-change = Flow).
Functionofoutputrelay
Alarm relay is set by front panel keys. Only one relay is
available for totalizer function, batch controller.
Dosage function (batch)
When set point is reached output relay is activated and
will be reset only by remote reset and that resets at the
same time the display. Dosage can be started from any
value up- or downwards. Output relay is mounted to
additionalslot.Relay contacts max.240VAC, 1A,alterna-
tively logic relays, 60V, 0,5 A.
Display memory: Add- on card 2000-MEM stores
display for one week in case of power brake
Display reset
Automatically according to the alarm border or by
outside key from 2000-MEM card.
General
Input filter Digital, freely adjustable
AD-conversion 16 bits (64 000)
Temperaturestab. 0,0004 %/°C
Display 6-num. bright red LED,
digit height 14.5 mm
Power 85...240 VAC or 12...30 VDC/ 24VAC
Power demand 3VA
Front panel protection IP65 with gasket
Weight 240 g
Optional:
Field enclosure 2000IP65-1
Type specification
2026-REL2-MEM-24VDC
2026 red display
2026GR green display
Relay card REL2
MemorycardMEM
Power
12 -32 VDC, 24VAC
or 85-240VAC
Optionaladd-oncards:
Memory 2000-MEM (for slot B)
Relay card for 2 relays 2000-REL2 (for slot C)
Mother board has two slots (B and C) for add-on cards.
Dimensions
96
48
105
10
Gasket (IP65)
6
Panelcut out
43.5 (h) x 90.5 (w) mm
case corners have pins
whichhelpinstallation.Pins
centralizesmeterintopanel
cutout made with DIN-tool
ø2,0

5
*
5620.0
Front panel indicators and buttons
With ▲▼-keys You can move on or change
numbersandvaluesinprogramming menu.
Another measuring value can be viewed by
pressing the ★★
★★
★-button, the follwing alternatives
can be selected in programming stage:
(See closer in chapter programming)
1. Rate-of-change value (flow)
2. Scaled display (function de_nor selected)
1. Scaled display (e.g. 4..20 mA = 0..100,0%)
2.Rate-of-changevalue (functionnor_de selected)
1.Totalizer
2 Scaled display (function to_nor selected)
1. Scaled display
2. Totalizer (function nor_to selected)
Alarmlights A1..A4.
Conf-lightindicates
programstage
Configuration
You can enter configuration stage by pressing two
seconds▲and★-keysatsametime.Inprogramstage
f. ex. scaling of display, sensor selection and alarm
mode are chosen.
See closer in chapter programming.
Reset of configuration parameters
Forgotten secret code may be reset by connecting
powersupplyandpressing▲,▼and➤-keysatsame
time.Thenyoucanenterconfigurationstagebykeys
▲▲▲▲▲▲.Changesecretcodeandexitby SAVE.
Setting of alarm value
You can set alarm value by ▲▼-keys number
by number. Setting starts from largest number
from left to right. You may go to next number by
➤-key. Exit by ★-key.
M1min memory led
M2maxmemoryled
400.00
Number setting
Numbers
0...9 and , (decimal)
Checking of alarm value
First pressing of ➤key shows setpoint of alarm one
(A1),correspondinglysecondpressingshowssetpoint
of alarmtwo (A2) etc. Alarmindicationlight blinks in
displayinformingthatalarmlevelisdisplayed(ifyoudo
not touch keys during 8 seconds display returns to
normalstateautomatically).
Preventing of entering alarms (secret code)
Ifyouhavesetsecretcodeforalarmsyoumustfeedit
beforeyoucanchangealarms(seechapter”settings
of secret codes” Page 8).
Change of alarm value
See chapter ”Alarm settings by front panel key”
Page8.

6
Input
+
*
Display scaling whit minimum input signal. e.g. 4 mA.
Countingdownwardsthedisplay’sminimumvalueisbeingsetfornegative(-).
Look for e.g. page 7. (Zero shift for non scalable inputs)
Display scaling whit maximum input signal. e.g. 20 mA.
Countingdownwardsthemaximumvalueofthedisplayis being set for negative (-) .
Look for e.g. page 7. (multiplier function for mV- and R inputs)
InPut
DEC
Lo
Hi
OPErAt
TimE
StArt
Halt
rESEt
FiLt
dISP
PEAK
CALib
SEtCod
Configurationmenufunctions
Input selection. See chapter 'Selection of input'.
Decimal selection. Select 1..5
FL_nor Rate-of-change (flowrate) Scaled display
Empty (-) 20-4 mA, Fill (+) 4-20 mA e.g. 4..20 mA = 0..100,0%
nor_FL Scaled display without time factor Rate-of-change(Flow/timeunit)
to_nor Totalizer, e.g. litre/1mA/h Scaled display
nor_to Scaled display Totalizer
Normaldisplay displaywith*-button
Counting time in seconds, e.g. 500 litres / mA /min, set time to 60 s (=1 min).
Displayvaluewherecountingstarts(batching).Defaultvalue=0.
WhencountingdownwardsdisplaywillshownegativevaluesiftheStartvalueissettozero.
Haltvaluepreventscountingunderthisdisplayvalue(posive).By givinganynegative
value,totalizer canbecounted also downwhen input isunder Low -value(eg. < 4mA).
Forexample: Scale4-20mA=0-1000, Halt=10(4.16mA), countingonlybetween10....1000.
Undo Returnwithoutresettingthetotalizervalue(counter)
rESEt TotalizedvalueresettoStart-valuesettinga(newbatch)
Press and hold ➤➤
➤➤
➤-button for 2 seconds. See also remote reset, page 10.
Digital filter for input signal (damping) selectable 0,01...1.0 (1.0= no filter)
0.2 = factory setting = 2 new and 8 old values
1= display update time 15/s. 7= 2/s. (average of 7 measurements)
Min/maxfunction:On=enabled,Off=disabled
IndicatorsM1=min,M2=max
For factory settings
Secret code settings ▼(▲back): ALCod= Code for alarm settings
CFCode= Code for configuration. See also section 'Secret code setting.
You can enter configuration stage by pressing two seconds ▲▲
▲▲
▲and ★★
★★
★keys at
sametime.Byarrowkeysyoucanmoveupwardsanddownwardsinmainmenu.
By pressing ➤➤
➤➤
➤key you can enter configuration stage at wished point. From
setting stageyou can skipdirect to savestage or toprevious levelwith ★★
★★
★-key.

7
Selection of input
25mV
55mV
100mV
1000mV
2500mV
5000mV
4-20mA
0-20mA
0-10V
Following inputs are designed only for special applications and they can
beskippedwithout notice.
Pt100 4W
Pt100 3W
Pt1000 4W
Pt1000 3W
Ni100 4W
Ni100 3W
tc-b, tc-c, Chr-Co, Tc-d,
tc-E, tc-G, tc-J, tc-k, tc-L
tc-n, tc-r, tc-S, tc-t,
Ir 440 factory settings
VoltageandmA-inputs
Inputselection
Input
+
*
Unitsacceptinputfrombelowlist.Movewitharrowsintodesiredinputandselectwith*-key. Defaultselection
is 4-20 mA. You can enter configuration stage by pressing two seconds ▲▲
▲▲
▲and ★★
★★
★keys at same time.
Savewith ➤key and exit fromconfiguration
Alarm level setting. See also section 'Alarm functions'.
Undochangesandexitfromconfiguration
Alarm level setting. See also section 'Alarm functions'.
mV-inputacceptsbothBibolar*andUnipolar**
Square root
selection
sqr = ON
lin = OFF
* Bibolar e.g. ± 25 mV
** Unipolar e.g. 0-25 mV
Unipolarmeasurementhasdouble
accuracy on positive side
Slot b
Slot c
SAVE
Undo
Example downwards counting
Typical downwardscountingapplication is emptyingofcontainer. Normally inthe containerhas 1000 litresof
water. When you empty it, it is necessary to know how much water is discharged. In the bottom of container
is flow meter, which has a scaling of 0..100 litres / min and output signal of 4..20 mA. Set follows: Lo = 0,
Hi = -100, Start = 1000, Time = 60. (By Hi-value +100 counting would start upwards).

8
General description
Panelmeterdefaultrelaycardis REL2. Incomissioning
you have to ensure the hardware setup before
programming.Youcanfinddescriptionofalarmcard
and its place on meter plate (def slot C).
When basic selections are done in program
stage, normal use by front panel keys is very
simple.
Alarmcards:
REL 2 =two relays with changeable contacts
(greyconnectorcolour).
Greyconnectorsaredesignedformainsvoltage 230
VAC,2Aandgreenconnectorsfor36VDC,100mA.
Alarm settings by front panel keys
*
5620.0
Relay indication lights A1...A4
6
5
4
3
2
1
6
5
4
3
2
1
7 8 9
Slot A Slot B Slot C
A1
A2
Relay card REL2
Input card
No
Nc
Nc
No
6
5
4
3
2
1
Max.
230 VAC,
2 A
I/O card
Alarm card connections
Optional cards in configuration menu are named as Slot C or B
Removing electronics from case:
Pressmetergentlybehindfront
plateanddrawfront frame
upwardsatupperedge.
Alarm functions
Only one relay is
available, Relay A1
(default) or A2
In menu:
Line1=A1
Line2=A2
Checking of alarm value
Pressing ➤once shows setpoint of alarm one (A1),
correspondingly second pressing shows setpoint of
alarm two (A2) etc. Alarm indication light blinks in
displayinformingthat alarm level isdisplayed(ifyou
do not touch keys during 8 seconds the display
returns to normal state automatically).
Preventing of entering alarms (secret code)
Ifyou havesetsecretcodeforalarms youmustfeed
it before you can change alarms (see chapter ”set-
tings of secret codes” Page 14).
Changeing alarm value
First pressing of ➤ key shows setpoint of alarm one
(A1), second pressing shows setpoint of alarm two
etc. When indication light (A1..A4) blinks you can
changealarmlevelbypressing▲or▼-key.Youcan
change setpoint of relay inquestion with keys ▲,▼,
➤.Acceptchangeby★-key(ifyoudonottouchkeys
during8secondsdisplayreturnstonormalstatewith
automaticallyandsave with same madechanges).
Alarmmode, hysteresis and othersettings aredone
inconfigurationstate.

9
Card 2
Slot b
Slot C
Card 4
Off
Line 1
Line 2
ALArm
OFF
Hold
Level 100.0
HyST 1.0
Type AL Lo
AL Hi
Reset User
Auto
Contact Nc
No
(Line 2 = relay 2)
A1
Setup
Serial
LinE Norm AL
tot AL
Loop On
Off
★
★
Hold On
Off
Reset Lo
Hi
Lo
Hi
Hi
Lo
Open
contact
Closed
contact
Output
Input
Return to
main menu
Select Slot C
Meterhas versatile alarm functions.Ininitial settings
youcan select firsttypeof alarm card(default REL2)
intoslotC.Therearetworelaysbutonlyoneofrelays
isavailable. When initial settingshavebeen made
user can easily set alarm levels by front panel
keys(seechapter”alarmfunctions”Page8).Youcan
prevententeringtoalarmchangestagebysecretcode
(see chapter ”settings of secret codes”. Alarm card
must always be mounted to slot C (for totalizer).
Shifting in menu
Youshiftinmenutonextlevel(toright)inprogramming
stageby➤-key.By★★
★★
★-keyyou returntopreviouslevel
or to main menu. Only one relay (line 1 or 2) can be
usedforalarmorbatchfunction.
What starts the alarm (Line):
NormAL Scaled value withouttimeunit
totAL Totalized valueor flowrate /time unit
Counterautoreset(Loop):
ON Counterresetand new start without
manualreset
Off Manualresetwithexternalbutton
For Hold input (I/O-line 3 in slot b):
On = relay changes its stage when hold input is closing or batch item is reached
Off = (default) relay changes its stage only when batch item is reached (alarm value)
Selection of alarm card and relay-function settings
Mainmenu
Output line
Hysteresis
selection
Front panel Led's
A1-A4
AL Lo = Low level
AL Hi = High level
AlarmReset:
Manuallyfrom
input line (slot b)
orautomatic
Relaydirection:
No=normalopen
Nc=normalclosed
Alarmlevelsetting
Unitrememberswhichcardisinuseandskipsdirect
toselectionofrelaynumber(line1).Youcanselect
new card in setup-point by holding down ▲ or
▼-keys 3 seconds. Point OFFand then ★★
★★
★-key
excludes the card from use. Front panel indication
lights A1..A4 correspond to relay (line) numbers
1..4. Serial = serial card, see chapter 'serial output
RS-485/RS-232'.
Slot B tai Slot C = Card slot B or C
Inputs
See page 10
Hold On
= Stop counting
Relay card
(3 sec.)
Off = no input
functions
Default
Noalarms

10
6
5
4
3
2
1
6
5
4
3
2
1
789
Slot A Slot B Slot C
Input 6
5
4
3
2
1
I/O-card (MEM)
Reset
=Line 4
Hold
=line 3
Line 3
Line 4
Com
I/O-card connection (Slot B) for totalizer function
Remote reset and hold function (totalizer)
GENERALDESCRIPTION
In addition to automatic reset you can reset also by
remote contact (optional). Contact is connected to
add-card 2000-MEM, which acts also as display
memory.Displayisstoredforoneweekwithoutpower.
Countingof display canbestopped by Holdfunction
from I/O-line 3 or 4 installed to Slot B.
PROGRAMMING
InprogrammingstateyouselectSlotb.Bythe➤-key
youenterSetup-menuinwhichyouselectcard2(I/O-
card).Thenyoumovetonextmenuby➤-key,inwhich
youselectLine3 or 4. In nextmenu you selectReset
or Hold of counter. After reset selection you choose
functiondirectionofresetcontact(openingorclosing).
You can return to main menu by ★★
★★
★-key.
In the Hold menu you can select opening or closing
contactofhold input that stopscounting. Ifyou need
to use relay together with hold function, see page 9.
Theresetandholdfunctions(inputs)canbeclosedby
selecting OFF menu only.
Returntomainmenu
by ★★
★★
★-key
Card 2
Slot b
Slot C
Card 4
Off
Line 4
Line 3
ALArm
OFF
Reset
L4
Setup
Serial
Hold Lo
Hi
Lo
Hi
Hi
Lo
Opening
contact
Closing
contact
Output
Input
Return to
main menu
If you have selected Hold or Reset function
earlier, you skiptothismenudirectlyfromLine
menu.
All inputs can be revented by selecting
OFF menu and leave it by ★★
★★
★-key.
SelectCard2
(default)
OFF=no inputfunctions
Reset(Line3):
Lo=closing contact
resets display (default)
Hi=opening contact
Hold(Line4):
Lo=closing contact
stops counting (default)
Hi= opening contact
(3 sec.)
Select Slot B
Default
Input lines 3 or 4
Default settings:
Hold (Lo) =line 3
Reset (Lo) =line 4

11
Minimumandmaximumvaluememory
Meter has min. and max. memory as standard. This
function must be selected in programmimg stage,
parameterPEAK=ON.
Youcanglancevaluesby➤-key.Whenyoupressthe
➤-key indication lights, above display, turns on in
followingorder:
1. A1 alarmlevel
2. A2 alarmlevel
3. A3 alarmlevel
4. A4 alarmlevel
5. M1 Minimum value memory
6. M2 Maximum value memory
7. Back to measuring stage
Reset memeory
*
5620.0
Youmayreset memory when youpress ★-keywhen
display shows memory in question, either M1 or M2.
A1 A2 A3 A4 M1 M2
Memorycanbe viewed
with ➤-key
Memorycanberesetted
with ★★
★★
★ -key when indi-
cator M1 or M2 lits.
SEtCod ALCode
On _ _ - _
OFF
CFCode
Accept new code
and exit
Back
Setting of secret codes (Programming stage/ alarms)
In Main menu position SETCod press ➤➤
➤➤
➤-key
and move on to selection stage.
Secret code:
ON = enable
OFF = disable (default)
Type new secret code twice.
(Accepts new value only after
second input)
ALCode = Secret code setting for alarms
CFCode = Secret code setting for Programming
Yousetsecretcodebypressingsixtimekeys(1-4)in
wished order (lines goes forward in display). Setting
mustberepeatedinsameorderbeforenewsettingis
accepted.
Example:Pressoneafteranotherkeys▲▲★➤▲▲▲▲★➤▲▲
▲▲★➤▲▲▲▲★➤▲▲
▲▲★➤▲▲
andoncemore▲▲★➤▲▲▲▲★➤▲▲
▲▲★➤▲▲▲▲★➤▲▲
▲▲★➤▲▲.Youmaythinkthekeys
as numbers from left to right 1,2 3,4 in order to help
Back
recordingandremembering.
Mainmenu
Select secret code mode:
CFCodeprogramming
ALCode foralarms
123
4
e.g.
A1-A4 lits if alarm
card(s)is(are)fitted.
Input code ▲ ▲ ★➤▲▲ and once more.
Examplenumbervaluewouldbe113411.
★

12
Manufacturer:
Nokeval Oy
Yrittäjäkatu12
37100NOKIA
FINLAND
www.nokeval.com
Tel. [phone]
Fax. [phone]
[email protected]
6
5
4
3
2
1
-
+
Voltage input 0-10V
0-10V
Sensorsupply
24 VDC, max 150 mA
0...20 mA
4...20 mA
J1 1 2 3
1 2 3
1 2 3
6
5
4
3
2
1
+
-
0...20mA
4...20mA
Power 90.....230 VAC, Gray connector
12.....32VDC,24VAC,greenconnector
(no polarity)
Colour codes:Gray 230 VAC
Green 24 VDC
Terminal connections
Cardslots
Card slot A only for input card.
Slots B and C for optional cards.
6
5
4
3
2
1
6
5
4
3
2
17 8 9
Slot A Slot C
A1
A2
Relays (REL2)Inputs
Sensor supply
24 VDC
max. 150 mA
No
Nc
Nc
No
(-)
(+)
Reset
Slot B
6
5
4
3
2
1
I/O-card (MEM)
Hold
Line 3
Line 4
Com
+
-
6
5
4
3
2
1
+
-
Short cut 3-4
2-wire 4-20 mA
2-wire
transmitter
6
5
4
3
2
1
+ 24 VDC
-
Transmitter
output 3-wire
Com
+
0/10 V input requires shortcut jumper J1 to
position 1-2, for other inputs shortcut 2-3.
Inputcard 2021-MU
Current intput 0/4..20 mA
(activetransmitter)
Factorysettings(2-3)
0/10Vinput
Input:
Relays max.
230 VAC 2A
(A1isdefaultfor
totalizerfunction)