Nokeval 2026 Manual de usuario

Manual

Model 2026

Totalizer / Batch controller

foranaloginputs

No 051201

Nokeval

Manufacturer:

Nokeval Oy

Tel. +358 3 342 4800

Fax. +358 3 342 2066

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

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

Flow sensor 4-20 mA

Flow rate e.g. 15,3 litres/mA/min Valve

4-20 mA

Typicalapplication

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

105

Gasket (IP65)

Panelcut out

43.5 (h) x 90.5 (w) mm

case corners have pins

whichhelpinstallation.Pins

centralizesmeterintopanel

cutout made with DIN-tool

ø2,0

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.

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

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.

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).

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

7 8 9

Slot A Slot B Slot C

Relay card REL2

Input card

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.

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

(Line 2 = relay 2)

Setup

Serial

LinE Norm AL

tot AL

Loop On

Off

★

Hold On

Off

Reset 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

789

Slot A Slot B Slot C

Input 6

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

Setup

Serial

Hold 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

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