Hach-lange SI794 D User Manual User Manual

si794 DDissolved Oxygen 4-Wire TransmittersUSER MANUALOctober 2008, Edition 1DOCXXX.xx.XXXXUser Manual Title Page TemplateUSER MANUALAugust 2008, Edi

Information on how to prevent electrostatic discharges (ESD)The sensitive electronic components in the device can be damaged by static electricity. Th

22 mA in the case of error 3888, display icon 59AAccess codes 108Accessories 89Alarm 27Alarm contact 48Alarm delay 48Alarm settings 48Assembly

Conguration steps 30Connections 16, 19Contact information 96Contact response 50Controller 54Controller equations 79Controller functions 78Contr

EElectrostatic discharge 10EMC 94Enclosure components 12Error codes 82Eror Info 75Error message, 22 mA signal 39Error messages 82External switc

LLED status 49Liability 98Limit function 50MMeasured value assignment 35Measurement 74Menu structure of conguration 29Mounting accessories 89M

PPackage contents 12Panel mounting 14Panel-mount kit (LZY 484) 15Parameter set 2 selected 59Parameter set for copy 62Passcodes 108PID controller

RRate time 54Rear housing 12Relay 1 50Relay 2 52Relay test 76Reset time 54Rinsing probe 56Rinsing system, connection 81SSafety functions 25, 2

TTable of contents 3Temp probe adjustment 74Temperature error 44Temperature probe 40Temperature unit 40Terminal assignments 16Time averaging lt

PasscodesThe passcodes allow fast access to the functions.CalibrationKey + CodeDescriptionCal Info Display of zero and slope00001001Product calibratio

Overview of si794 D12345EDC67891011121314151617181920O2 inputHold inputControl inputOutput 1 Output 2AlarmCleanPowerDo not c

Package contentsCheck the shipment for transport damage and completeness. The package should contain:• Front unit • Rear unit• Bag containing small p

Mounting plan1441441542848032214310527726,212341 Strain relief (3 x)2 Strain relief or 1/2“ conduit opening, ø 21.5 mm (2 x) Conduit hardware no

40 6013212345Fig.: Bracket kit (LZY483) – All dimensions in mm!1 Protective hood (LZY485) - if required2 Hose clamp with worm gear drive to DIN 301

12345max. 2578 271...221 Screw (4 x)2 Gasket (1 x)3 Control panel4 Span piece (4 x)5 Threaded sleeve (4 x)Fig.: Panel mounting kit (LZY484) – Al

Fig.: si794 D terminal assignmentsTerminal assignmentsInstallation and connectionInstallation instructionsCaution! Danger of electric shock!Any work o

13241 ESD shield covering the s

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Wiring exampleHamilton Oxyferm, Oxygold G, OxySens sensorsTerminalAssignmentOxyferm Oxygold GOxysens2 Cathode Transparent,coax coreTransparent,coax co

Return of products under warrantyPlease contact our Service Team before returning a defective device. Ship the cleaned device to the address you have

Protective wiring of relay contactsRelay contacts are subject to electrical erosion. Especially with inductive and capacitive loads, the service life

A: DC application with inductive loadB: AC/DC applications with capacitive loadC: Connection of incandescent lampsA1 Inductive loadA2 Free-wheeling

Interface and navigationThe si794 transmitter user interface contains a display, indicators, and keys for navigation and menu selection.Use the arrow

DisplayThe gure below identies all of the possible icons and symbolsthat may be seen in the si794 transmitter display.Interface and navigation334.3

Operation: KeypadStart, end calibrationStart, end configurationSelect digit position(selected position blinks)Edit digit• Calibration: Continue in

Sensoface provides information on the sensor condition.The slope and response time during calibration are evalu-ated. The three Sensoface indicators p

Safety functions Hold mode Display: The Hold mode is a safety state during conguration and calibra-tion. Output current is frozen (Last) or set to

AlarmThe alarm delay is congurable.During an error message the alarm LED blinks or lights.Error messages can also be signaled by a 22 mAoutput curren

The output current is frozen (at its last value or at a preset fixed value, depending on the configurati-on), limit and alarm contacts are inac-tive.

Select menu groupMenu group Code DisplaySelect menu itemOutput 1 o1.Menu item 1Menu item 2...Menu item ...Output 2 o2.Temperature compensationtc.Cali

Table of contentsIntended use ... 5Safety information ...

Overview of conguration stepsMenuCodeChoicesout1Output 1o1.Select sensor type Standard (Type A) / Traces (Type B)Select saturation / concentration% /

MenuCodeChoicesALrAlarm settingsAL.Select Sensocheck ON / OFFEnter alarm delayxxxx secLED in HOLD modeON / OFFrLAYRelay 1/2: Limit values, controllerr

CongurationOutput 1Select sensor type / Measurement procedureSelect sensor type*Select meas. procedureSelect 0-20 / 4-20 mAEnter current startEnter c

Note: Characters represented in gray are blinking and can be edited.Code DisplayActionChoiceso1.Select configuration(Press conf key).Enter passcode “1

CongurationOutput 1Output current range / Current start / Current end.Select sensor typeSelect meas. procedureSelect 0-20 / 4-20 mAEnter current star

Code4 - 20 mA(0 - 20 mA)DisplayActionChoiceso1.Set output current rangeSelect using key.Press enter to proceed.Current start Enter lower end of scal

CongurationOutput 1Time averaging lterSelect sensor typeSelect meas. procedureSelect 0-20 / 4-20 mAEnter current startEnter current endSet output fi

0 sec(0 ... 120 sec)CodeDisplay ActionChoiceso1.Time interval of output filterDefault setting: 0 sec (inactive).To specify a time interval: Select po

CongurationOutput 1Output current during Error and HOLDSelect sensor typeSelect meas. procedureSelect 0-20 / 4-20 mAEnter current startEnter current

OFF (ON)CodeDisplayActionChoiceso1.22 mA signal for error messageSelect using keyPress enter to proceed.Output signal during HOLD LAST: During HOLD

Controller ... 54Control of rinsing probe ...

CongurationOutput 2Temperature unit and probe / Output current.Select °C/°FSelect temp probeSelect 0-20 / 4-20 mAEnter current startEnter current end

°C(°F)CodeDisplayActionChoiceso2.Specify temperature unitSelect using key key.Press enter to proceed.Select temperature probeSelect using key key.

CongurationOutput 2Time averaging lterSelect °C/°FSelect temp probeSelect 0-20 / 4-20 mAEnter current startEnter current endSet output filter22 mA f

0 sec(0 ... 120 sec)CodeDisplayActionChoiceso2.Time interval of output filterDefault setting: 0 sec (inactive).To specify a time interval: Select pos

CongurationOutput 2Temperature error / Output current during HOLDSelect °C/°FSelect temp probeSelect 0-20 / 4-20 mAEnter current startEnter current e

OFF (ON)CodeDisplayActionChoiceso2.Output signal during HOLD LAST: During HOLD the last measured value is maintained at the outputFIX: During HOLD a

CongurationCorrectionPolarization voltage / Process pressure / Salinity correctionPolarization voltageMeas. unit (pressure)Process pressureSalinity c

0675 mVCode DisplayActionChoicesCo.Enter polarization voltageSelect using , edit number using , press enter to proceed.Select pressure unitSelect

CongurationCalibration modeAlarm settings Calibration mode Cal timer intervalSelect SensocheckDelayLED in HOLD modeCodeDisplayMenu groupSelect menu i

SAt(Conc)CodeDisplayActionChoicesCA.Specify calibration mode(Calibration to saturation or concentration)Select using , press enter to proceed.Cal t

Intended useThe si794 D transmitter is used for dissolved oxygen and tempera-ture measurement in biotechnology, pharmaceutical industry, as well as in

CongurationLimit FunctionRelay 1Relay / ControllerrL.CodeDisplayMenu groupSelect menu itemExit:Press conf, then enter.Contact functionContact respons

LiMIT(CtROL)CodeDisplayActionChoicesrL.Use of relays:• Limit function (LiMIT) • Controller (CtROL)Select using , press enter to proceed.Note: Selec

CongurationLimit functionRelay 2Relay / ControllerrL.CodeDisplayMenu groupSelect menu itemExit:Press conf, then enter.Relay 1 menu groupContact funct

CodeDisplay ActionChoicesL2.Hi (Lo)For limit 2 function principle,see Fig. below. Select using , press enter to proceed.Limit 2 contact responseN/C:

CongurationController (for description see page 78)Setpoint / Neutral zoneRelay 1 menu groupRelay 2 menu groupController setpointEnter neutral zone(P

SetpointSelect using , edit number using , press enter to proceed.Neutral zone (dead band)Select using , edit number using , press enter to proc

ConfigurationControlling a rinsing probe orSignaling parameter set 1/2Select CLEAN / PSet2Rinsing intervalRinse timeContact responseContact:CLEAN / PS

Signaling parameter set 1/21718Cleane.g. spray cleaningPower supplyControlling a rinsing probeThe “Clean” contact can be used to connect a simple rins

Selecting parameter set 1/2Manually or via a signal at the Control inputDisplayAction ChoicesSelect:• Parameter set 1 (MAN)• Parameter set 2 (MAN)• A

External switchover of parameter setsThe parameter set can be selected from outside by sending a signal to the Control input (e.g. from the process co

Safety informationBe sure to read and observe the following!The device has been manufactured using state of the art technology and it complies with a

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Two complete parameter sets are stored in the EEPROM. As delivered, the two sets are identical but can be edited. Note: Fill in your configuration da

Code. Parameter Settingo1. Sensor type ____________ ____________o1. %, mg/L, ppm ____________ ____________o1. 0/4-20 mA ____________ __

Code. Parameter SettingrL. Relay function ____________ ____________L1. Contact function ____________ ____________L1. Contact response ______

CalibrationCalibration adjusts the transmitter to the sensor.Activation Activate with calEnter passcode.Edit parameter using  and , conrm/proceed u

CalibrationIt is always recommended to calibrate in air. Compared to water, air is a calibration medium which is easy to handle, stable, and thus safe

DisplayActionRemarkEnter relative humiditySelect position using , edit number using , press enter to proceed.Enter calibration pressureSelect pos

Display ActionRemarkEnter setpoint value for saturationSelect position using , edit number using , press enter to proceed.Display of new slope

DisplayActionRemarkEnter relative humidity(Select position using , edit number using , press enter to confirm.)Enter calibration pressure(Select

DisplayActionRemarkEnter default for concentration(Select position using , edit number using , press enter to confirm.)Display of new slope and

This symbol, when noted on the product, identifies a risk of chemical harm and indicates that only indi-viduals qualified and trained to work with che

Zero calibrationZero calibrationThe sensors have a very low zero current. Therefore, a zero cali-bration is only recommended for measurement of oxygen

DisplayActionRemarkMain display: Zero current Press enter to save the value or correct it using the arrow keys and then save by pressing enter.Secon

Product calibrationCalibration by samplingDisplayActionRemarkProduct calibration step 1:Select calibration(Press cal key).Enter passcode: 1105(Select

DisplayActionRemarkMeasuring modeProduct calibration step 2:When a reference value has been determined, open the product calibration once more (cal ke

Temp Probe AdjustmentDisplayRemarkMeasurementIn the measuring mode the main display shows the configured process variable (%, mg/L, or ppm) and the lo

Display of output currentsPress enter while in measuring mode.The current at output 1 is shown in the main display, the current at output 2 in the sec

Relay test (manual test of contacts)• Press conf, enter code 5557The relays are frozen. This state is indicated in the display. The 4 digits in the d

The arrows indicate which relay (valve) is active:Controller characteristic +100 %-100 %Relay 2 active(Meas. value > setpoint)Relay 1 active(Meas.

P controller Application in integrating systems (e.g. closed tank, batch processes).PI controllerApplication in non-integrating systems(e.g. aeration

Proportional action YPProcess variables: % / (mg/L, ppm)Proportional action (Gradient KC [%])Deviation Neutral zone (Y=0)Tolerated deviation from desi

Signal words for hazard informationThis manual uses signal words to mark safety information. They are used alone or in combination with a safety symb

Controller functionsPulse length / pulse frequency controllerPulse length controller (PLC)The pulse length controller is used to operate a valve as an

1718Cleane.g. spray cleaningPower supplyConnecting a rinsing systemThe “Clean” contact can be used to connect a simple spray cleaning system. Rinse t

Alarm contactRed LEDOut 1 (22 mA)Out 2 (22 mA)Error messages(error codes)SAT rangeSensor defectiveWrong sensor connectedMeasuring range exceededError

Alarm contactRed LEDout 1 (22 mA)Out 2 (22 mA)Current output 1Current below 0 (3.8) mAErrorIcon(blinks)Problem Possible causesERR 11xxxTemperature pro

Alarm contactCleaningcontactLEDTimeoutOperating statusMeasuringOperating statesRel.1/2 ControllerRel.1/2 Limit valueOut 2Out 1Cal Info(cal) 000020 sEr

Product cal 1(cal) 1105Product cal 2(cal) 1105Configuration(conf) 120020 minParameter set 1/2(conf) 765420 minSensor monitor(conf) 222220 minCurrent s

Response timeCal timerSlopeZero pointSensoface(Sensocheck must have been activated during configuration.)RangeThe little smiley in the display (Sensof

Type B sensor (Hamilton Oxygold)Thermometer and Sensoface:Temperature out of concentration or saturation rangeSlopeZero pointResponse timeCal timerRa

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AppendixProduct line and accessoriesDevices Order No.si794 D LXV508.99.00002Mounting accessoriesPipe-mount kit LZY483Panel mount

General safety informationDo not use or install the si794 transmitter in any manner other than that which is specified in this manual.Important NoteWo

O2 input Type A sensor: Hamilton Oxyferm, Oxysens Type B sensor: Hamilton OxygoldMeasuring current -2 ... 1800 nAResolution 0.05 nA

Temperature input NTC 22 kohms / NTC 30 kohms* 2-wire connection, adjustableMeasuring range -20.0 ... +150.0 °C / -4 ... +302 °FAdjustment range

Alarm contact Relay contact, floatingContact rating AC < 250 V / < 3 A / < 750 VA DC < 30 V / < 3 A / < 90 WContact response N

Cleaning function * Relay contact, floating, for controlling a simple rinsing systemContact ratings AC < 250 V / < 3 A / < 750 VA DC

Protection against electric shock Safe electrical isolation of all extra-low-voltage circuits against mains by double insulation to EN 61010-1 Powe

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Contact informationHACH LANGE GMBHWillstätterstraße 11D-40549 DüsseldorfTel. +49 (0)2 11 52 88-320Fax +49 (0)2 11 52 [email protected]

HACH LANGE LTDUnit 1, Chestnut RoadWestern Industrial EstateIRL-Dublin 12Tel. +353(0)1 46 02 5 22Fax +353(0)1 4 50 93 [email protected]

Limited warrantyHach Company warrants its products to the original purchaser against any defects that are due to faulty material or workmanship for a

• Freight charges on expedited or express shipment of warranted parts or product• Travel fees associated with on-site warranty repairThis warranty co