Hach si792 D series User Manual Download

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Section 2

General Information

2.1 Safety information

Please read this entire manual before unpacking, setting up, or

operating this equipment. Pay attention to all danger and caution

statements. Failure to do so could result in serious injury to the operator

or damage to the equipment.
To ensure that the protection provided by this equipment is not

impaired, do not use or install this equipment in any manner other than

that specified in this manual.

2.1.1

Use of hazard information

DANGER
Indicates a potentially or imminently hazardous situation which, if
not avoided, could result in death or serious injury.

CAUTION
Indicates a potentially hazardous situation that may result in
minor or moderate injury.

Important Note: Information that requires special emphasis.

Note: Information that supplements points in the main text.

2.1.2

Precautionary labels

Read all labels and tags attached to the instrument. Personal injury or

damage to the instrument could occur if not observed. A symbol, if

noted on the instrument, will be included with a danger or caution

statement in the manual.

This symbol, if noted on the instrument, references the instruction

manual for operation and/or safety information.

Summary of Contents for si792 D series

Page 1: ...DOC026 52 00797 si792 D si792x D si792x D FF si792x D PA Dissolved Oxygen 2 Wire Transmitters USER MANUAL 03 2014 Edition 8 ...

Page 2: ...2 ...

Page 3: ...smitter 16 3 3 Mechanical installation 18 3 3 1 Transmitter assembly 18 3 3 2 Mounting 18 3 3 2 1 Wall mount 18 3 3 2 2 Panel or pipe mount optional 18 3 4 Wiring Safety Information 20 3 5 Electrical installation 21 3 5 1 Wire preparation 21 3 5 2 Power and communication connections 23 3 5 2 1 si792 x D 4 20 mA HART wiring 24 3 5 2 2 si792x D FF and si792x D PA wiring 25 3 5 3 Sensor wire connecti...

Page 4: ...ction menu configuration 40 5 2 4 Calibration mode configuration 41 5 2 5 Alarm settings configuration 41 Section 6 Operation Foundation Fieldbus 43 6 1 Configuration 43 6 1 1 Configuration steps 43 6 1 2 Configuration menu 44 6 2 Foundation Fieldbus communication 46 6 2 1 Standard resource block RB 46 6 2 2 Standard analog input block AI 49 6 2 2 1 Operating modes 49 6 2 2 2 Set the parameter and...

Page 5: ...mended 73 8 1 2 2 Calibration in water 74 8 1 3 Gas calibration volume concentration 74 8 1 4 Calibration by comparison 75 8 2 Temperature sensor adjustment 76 Section 9 Maintenance 77 9 1 Cleaning the instrument 77 9 2 Sensor maintenance 77 Section 10 Troubleshooting 79 10 1 Sensoface 79 10 2 Sensocheck 79 10 3 Error codes 80 10 4 Calibration errors 82 10 5 Diagnostic functions 83 Section 11 Part...

Page 6: ...Table of Contents 4 ...

Page 7: ...T or rigid metallic conduit Power Requirements HART 12 30 VDC 30 VDC maximum 100 mA maximum 0 8 W maximum Ex Power requirements FF and Profibus PA FISCO bus supply 9 to 17 5 VDC Linear barrier 9 to 24 VDC Loop current HART 4 20 mA floating 3 80 22 00 mA specifiable Current consumption FF and Profibus PA 13 2 mA Maximum current in case of fault FDE FF and Profibus PA 17 6 mA Measurement error1 0 3 ...

Page 8: ...792 D CSA certified to Class I Division 2 si792x D CSA certified and si792x C FF si792x D PA cFMus certified to Class I Division 1 Groups A B C D Class I Division 2 Groups A B C D Sensor Class I Zone 0 Group IIC Transmitter Class I Zone 1 Group IIC Enclosure Type 2 EU si792x P ATEX Certification II 2 1 G Ex ib ia Ga IIC T6 Gb si792x D FF si792x D PA II 2 1 G Ex ia IIC T4 Ga CE Marked to EMC Direct...

Page 9: ...current temperature Communications HART communication Digital communication by FSK modulation of loop current reading of device identification measured values status and messages reading and writing of parameters start of product calibration signaling of configuration changes according to FDA 21 CFR Part 11 Foundation Fieldbus FF_H1 Bus powered device with constant current consumption Cyclic and a...

Page 10: ...nt coupler to SPC PC PCS Address range 1 to 126 Temperature Input Probe NTC 30 k NTC 22 k selectable 2 wire connection Range 20 0 to 150 0 C 4 to 302 F Adjustment range 10 K Resolution 0 1 C 0 1 F Measurement error1 2 0 5 K 1 K at T 100 C Dissolved oxygen input Type A sensor3 Oxyferm Oxysens Hamilton Type B sensor3 Oxygold G Hamilton Measuring current 0 1200 nA resolution 20 pA Measurement error1 ...

Page 11: ...s Zero point 2 nA Range Type B sensor Slope 200 550 nA 25 C 1013 mbars Zero point 2 nA Calibration timer 0 to 9999 hours 1 IEC 746 Part 1 at nominal operating conditions 2 1 count plus sensor error 3 Sensor specifications given in Table 1 4 si792 x D and si792x D FF only Table 1 Sensor specifications Sensor type Screw cap Sensor current in air 25 C Detection limit Temperature sensor Type A sensor ...

Page 12: ...Specifications 10 ...

Page 13: ...icates a potentially or imminently hazardous situation which if not avoided could result in death or serious injury CAUTION Indicates a potentially hazardous situation that may result in minor or moderate injury Important Note Information that requires special emphasis Note Information that supplements points in the main text 2 1 2 Precautionary labels Read all labels and tags attached to the inst...

Page 14: ...ation of a fuse or current limiting device This symbol when noted on the product identifies a risk of chemical harm and indicates that only individuals qualified and trained to work with chemicals should handle chemicals or perform maintenance on chemical delivery systems associated with the equipment This symbol when noted on the product identifies the presence of a strong corrosive or other haza...

Page 15: ...ge 85 provides protection against direct weather exposure and mechanical damage Three communication options are available for the si792 transmitter 4 20 mA HART si792 D and si792x D si792 x D Foundation Fieldbus si792x D FF Profibus PA si792x PD PA This user manual includes instructions for all three protocols Important Note An x in the model number is an indication of an instrinsically safe IS in...

Page 16: ...codes may be used as electronic signatures Passcodes can be edited with the passcode editor Appendix A on page 87 2 2 2 2 Audit trail for si792 x D transmitters The si792 x D can automatically track all changes to the device settings Each change is tagged with a Configuration Change flag which is documented using HART communication Altered device settings or parameters can be retrieved from the tr...

Page 17: ...ation failure to operate properly If any of these conditions have occurred return the device to the manufacturer for recertification The si792 and si792x transmitters differ in hazard classification The si792 transmitter is designed for non hazardous or Class I Division 2 Groups A B C D hazardous locations The si792x transmitter is designed for Class I Division 1 Groups A B C D hazardous locations...

Page 18: ...he provided documentation CD Follow all regulations specified for the installation location Refer to the documentation CD for manuals provided in other languages 3 2 Unpacking the transmitter Check the shipment for transport damage and make sure all components have been shipped complete The package includes Display module Bag of hardware and fasteners Back enclosure Test report and user manual ...

Page 19: ...s 1 Back enclosure 8 Strain relief 3x 2 Optional conduit hardware 9 Filler plug 3x 3 Conduit washer 10 Enclosure screw 4x 4 Jumper 2x 11 Display module 5 Cable tie 3x 12 Hinge pin 6 Sealing insert 13 Hex nuts 5x 7 Rubber reducer 14 Sealing plug 2x ...

Page 20: ...e back enclosure using the hinge pin 3 3 2 Mounting Refer to the following sections to mount the transmitter on a wall panel or pipe 3 3 2 1 Wall mount 1 Use a punch to open the two wall mount holes in the back enclosure Figure 2 2 Drill holes in the wall suitable for the user supplied mounting bolts 3 Attach the back enclosure to the wall using two customer supplied bolts 4 Insert the clear plast...

Page 21: ...t dimensions 1 Breakout for wall mounting 2x 5 Groove for panel mount gasket 2 Hole for pipe mounting 4x 6 Strain relief opening 3x 3 Strain relief 3x 7 Strain relief or inch conduit opening 2x Ø 21 5 mm 0 85 in 4 Breakout for panel mounting ...

Page 22: ...damaged by static electricity resulting in degraded instrument performance or eventual failure The manufacturer recommends taking the following steps to prevent ESD damage to the instrument Before touching any electronic components such as printed circuit cards and the components on them discharge static electricity from the body by touching an earth grounded metal surface such as the chassis of a...

Page 23: ...ble control drawing or ATEX certificate Review the electrical code regulations Review the regulations for electrical installations in hazardous locations as needed e g EN 60079 10 EN60079 14 94 9 EC directive NEC CEC Profibus Technical Guidelines 2 091 Remove power or confirm non hazardous status before making any connections Confirm that the intrinsic safety of the device is maintained when conne...

Page 24: ... number 2 Stripping lengths for coaxial cables 7 Typical terminal 3 Cable shield connector1 1Not used for si792x D ff and si792x D PA transmitters 8 Seat insulation against connector 4 ESD shield removed 9 Removing terminal with screwdriver 5 Areas for screwdriver to pry terminal 10 Cable loop position in housing ...

Page 25: ...pparatus in the control drawing or to the EC Type Examination Certificate for input ratings Prerequisites Trained personnel only must install or commission the equipment Follow the instructions in this user manual and the applicable local and national codes Observe the technical specifications and input ratings during installation Disconnect all power sources during wiring and installation Use sin...

Page 26: ... and Table 2 and the following steps to connect the power supply to the si792 x D transmitter Figure 4 si792 x D 4 20 mA HART wiring 1 HART connection see warnings in section 3 6 on page 30 2 Wiring terminals see Table 4 Table 2 Terminal assignments si792 x D Terminal No Assignment 9 Equipotential bonding for ATEX Do not connect for FM and CSA 10 4 20 mA output 11 4 20 mA output ...

Page 27: ...wing sections to connect the transmitter to a sensor Oxygold G Oxyferm sensor si792 x D section 3 5 3 1 Oxygold G Oxyferm sensor si792x D FF si792x D PA section 3 5 3 2 Oxysens sensor si792 x D section 3 5 3 3 Oxysens sensor si792x D FF si792x D PA section 3 5 3 4 Figure 5 si792x D FF and si792x D PA wiring 1 Wiring terminals see Table 3 Table 3 Terminal assignments si792x D FF and si792x D PA Ter...

Page 28: ...als see Table 4 Table 4 Terminal assignments Oxygold G or Oxyferm sensor Terminal No Assignment Wire color1 1With VP cable LZY079 LZY353 and LZY354 Blue and gray are not used 1 Cathode coaxial center wire clear 5 Anode coaxial shield shield red 6 Cable shield connection Note Do not connect to earth ground shield yellow green 7 RTD resistive temperature device green 8 RTD resistive temperature devi...

Page 29: ...rm 1 Wiring terminals see Table 5 Table 5 Terminal assignments Oxygold G or Oxyferm sensor Terminal No Assignment Wire color1 1With VP cable LZY079 LZY353 and LZY354 Blue and gray are not used 2 Cathode receive high clear 4 Anode shield red 5 Cable shield connection Note Do not connect to earth ground shield yellow green 7 RTD resistive temperature device green 8 RTD resistive temperature device w...

Page 30: ...g example for Oxysens sensor fixed cable 1 Wiring terminals see Table 6 Table 6 Terminal assignments Oxysens sensor Terminal No Assignment Wire color 1 Cathode coaxial center wire clear 5 Anode brown 6 Cable shield connection Note Do not connect to earth ground shield 7 RTD resistive temperature device yellow 8 RTD resistive temperature device blue ...

Page 31: ...d si792x D PA wiring example for Oxysens fixed cable 1 Wiring terminals see Table 7 Table 7 Terminal assignments Oxysens sensor Terminal No Assignment Wire color 2 Cathode receive high clear 4 Anode brown 5 Cable shield connection Note Do not connect to earth ground shield 7 RTD resistive temperature device yellow 8 RTD resistive temperature device blue ...

Page 32: ...ng Do not connect or disconnect any equipment unless power has been switched off or the area is known to be non hazardous DANGER The si792x transmitter must be used with an explosion proof HART communication device Refer to the appropriate control drawing for the location of the HART Rosemount device Refer to Figure 4 on page 24 for the connector location ...

Page 33: ...h the menu and change settings Use the indicators to identify which mode the transmitter is in Refer to Figure 10 to identify the keys and indicators of the si792 x D Figure 10 User interface si792 x D 1 Calibration key 7 Wash mode indicator not available 2 Configure key 8 Configuration mode indicator 3 Measure mode indicator 9 Up arrow key 4 Calibration mode indicator 10 Right arrow key 5 Alarm i...

Page 34: ... the si792x D FF and the si792x D PA Figure 11 User interface si792x D FF and si792x D PA 1 Measure key 7 Communication indicator 2 Calibration key 8 Configuration mode indicator 3 Measure mode indicator 9 Up arrow key 4 Calibration mode indicator 10 Right arrow key 5 Alarm indicator 11 Enter key 6 Display 12 Configuration mode ...

Page 35: ...larm mode 3 4 20 mA output HART 15 Manual temperature on 4 Limit values FF and Profibus PA 16 Calibration mode 5 Alarm 17 Hold mode active 6 Sensocheck sensor error 18 Hourglass 7 Calibration active 19 Measure mode active 8 Calibration interval 20 Calibration complete 9 Parameter display 21 Calibration zero or first point 10 Enter prompt 22 Calibration second point 11 Configuration mode 23 Sensofa...

Page 36: ...Interface and navigation 34 ...

Page 37: ... return to the measure mode from the calibration menu press CAL and then ENTER Note The waiting time for the stabilization of the measured value is approximately 20 seconds 5 2 Configuration Use the configuration mode to specify the sensor range and other parameters for the system as shown in Table 8 1 Press CONF and enter 1200 to enter the configuration mode 2 Use the arrow and enter keys to chan...

Page 38: ...r is displayed Figure 12 on page 33 5 2 1 Output configuration o1 4 20 mA current output 1200 tc Temperature sensor Corr Correction for pressure salinity polarization voltage CAL Calibration setup AL Alarm settings Table 9 Output setup menu out 1MNU Select the parameter o1 FCT DO concentration by weight default GAS concentration by volume Select the sensor type o1 SnSR Type A standard default exam...

Page 39: ...1 4mA 4 Use the UP ARROW and RIGHT ARROW to edit the value to 03 00 mg L Press ENTER to save the value The display will show o1 20mA 5 Press CONF and then ENTER to exit the configuration menu Specify the value for the 4 mA signal section 5 2 1 1 o1 4mA Enter the minimum DO or GAS value default 0 Specify the value for the 20 mA signal section 5 2 1 1 o1 20mA Enter the maximum DO or GAS value defaul...

Page 40: ...The filter averages readings over a specified time interval The time interval can be set from 0 to 120 seconds default 0 seconds When set to 0 seconds there is no noise reduction and the signal is the same before and after the filter When set to 120 seconds the signal after the filter will be averaged over 120 seconds Increase the time interval to reduce the noise in the output signal Note The fil...

Page 41: ...aintained at the last measured value Figure 13 or fixed at a specified value Figure 14 The allowable range for the fixed value is 3 8 to 22 mA Figure 13 Output signal during HOLD last value 1 Output signal during HOLD 2 HOLD mode Figure 14 Output signal during HOLD fixed value 1 Output signal during HOLD 2 HOLD mode ...

Page 42: ...ation An overview of the corrections menu is shown in Table 11 Table 10 Temperature sensor setup menu tc MNU Select temperature unit tc UnIT C default F Select temperature sensor tc rTD 22NTC default 30NTC Table 11 Corrections setup menu Corr MNU Specify the polarization voltage Co UPoL Enter the polarization voltage 400 1000 mV default 675 mV Select pressure units Co UniT Bar default KPa PSI Spec...

Page 43: ...ration mode setup menu CAL MNU Select calibration units CA MOD SAt default Conc Enter calibration timer interval CA tiME Enter the time interval for calibration 0 to 9999 hours default 0 h Table 13 Output setup menu for alarm settings ALrt MNU Select Sensocheck on or off AL SnSO CHECK ON Continuous evaluation of sensor function CHECK OFF default Enter alarm delay AL dLY 0010 sec default Range 0000...

Page 44: ...Operation si792 x D 4 20 mA HART 42 ...

Page 45: ...ration steps Complete the following steps to configure the si792 transmitter 1 Press MEAS CAL and enter 1200 to enter the configuration mode 2 Use the arrow and enter keys to change the settings All settings and options are shown in section 6 1 2 To exit the configuration mode at any time press MEAS CAL and then ENTER The Hold mode will be active for 20 seconds and then the measured value will be ...

Page 46: ...t process medium O2 dissolved DO gas GAS ln FCT DO default ln UnIT default mg L µg L ppm ppb GAS ln UnIT ppm default Select filter time ln FtME 0000 0120 SEC default 0000 SEC Select temperature unit tc UnIT C default F Select temperature sensor tc rTD 22 NTC default 30 NTC Select polarization voltage Co UPOL 1000 0 mV default 0675 mV Select pressure unit Co UnIT BAR default kPa PSI Select pressure...

Page 47: ...efault 0000 h Select Sensocheck AL SnSO CHECK ON Continuous Sensocheck evaluation of sensor function CHECK OFF default LED in Hold mode AL LED HOLD ON LED blinks during hold HOLD OFF default LED off during hold Select Fieldbus address optional 1 FF ADR 0017 0031 BUS default 0026 BUS 1Use only when there is no bus connection The transmitter will restart and set all parameters to default values Indi...

Page 48: ...status The resource block must be in automatic mode for any of the other blocks to operate The bus parameters for the standard resource block RB are shown in Table 14 Table 14 Bus parameters resource block RB Parameter Description Default R W ST_REV Static revision 0 R TAG_DESC TAG description R W STRATEGY Strategy 0 R W ALERT_KEY Alert key 0 R W MODE_BLK Target OOS out of service R W Actual Permi...

Page 49: ...SIZE Memory size R NV_CYCLE_T Non volatile cycle time R FREE_SPACE Free space R FREE_TIME Free time R SHED_RCAS R W SHED_ROUT R W FAULT_STATE Fault state R SET_FSTATE Set fault state 1 R W CLR_FSTATE Clear fault state 1 R W MAX_NOTIFY Max notifications 20 R LIM_NOTIFY Limit of notification 8 R W CONFIRM_TIME Confirmation time 640000 1 32 ms R W WRITE_LOCK Write locking 1 Unlocked R W UPDATE_EVT Un...

Page 50: ..._OPTION Automatic acknowledge option 0 Disabled R W WRITE_PRI Write priority 0 R W WRITE_ALM Unacknowledged R W Alarm state R Time stamp R Sub code R Value R ITK_VER ITK_version 4 R DEVICE_LOCK Locks the device for local access 1 byte Data type uns8 Range 0 Unlocked 1 Locked 0 Unlocked R W Table 14 Bus parameters resource block RB continued Parameter Description Default R W ...

Page 51: ...f not write protected access to all parameters is allowed MAN manual Auto online normal state 6 2 2 2 Set the parameter and units Use CHANNEL to set the measured parameter and units Table 15 The corresponding measurement unit is selected in the UNITS subparameter of XD_SCALE Table 16 on page 51 Table 15 Measurement parameters and units Channel Parameter Unit Unit value 1 Saturation percent 1342 2 ...

Page 52: ...ms The AI block can generate block alarms and limit alarms Use the ACK_OPTION parameter to specify if an alarm must be acknowledged When the measured value status is bad the AI block BLOCK_ERR parameter indicates an Input Failure Block alarms a block error will be reported via the BLOCK_ERR parameter simulate active input failure block configuration error out of service OOS The BLOCK_ALM parameter...

Page 53: ...scription R W STRATEGY Strategy 0 R W ALERT_KEY Alert Key 0 R W MODE_BLK Target OOS R W Actual Permitted OOS Auto Normal Auto BLOCK_ERR Block Error R PV Process Value R Status R OUT Measured Value R Status R SIMULATE Simulate Status R W Simulate Value R W Transducer Status R Transducer Value R Simulate Enable Disable R W XD_SCALE High Range 100 R W Low Range 0 R W Units Index 0 R W Decimal Point 0...

Page 54: ...me Stamp 0 R Static Revision 0 R Relative Index 0 R BLOCK_ALM Unacknowledged 0 R W Alarm State 0 R Time Stamp 0 R Sub code 0 R ALARM_SUM Current 0 R Unacknowledged 0 R Unreported 0 R Disabled 0 R W ACK_OPTION Automatic Acknowledge Option 0 R W AlARM_HYS Alarm Hysteresis 0 50 R W HI_HI_PRI High High Priority 0 R W HI_HI_LIM High High Limit INF R W HI_PRI High Priority 0 R W HI_LIM High Limit INF R ...

Page 55: ...e Stamp 0 R Sub code 0 R Value 0 R HI_ALM Unacknowledged 0 R W Alarm State 0 R Time Stamp 0 R Sub code 0 R Value 0 R LO_ALM Unacknowledged 0 R W Alarm State 0 R Time Stamp 0 R Sub code 0 R Value 0 R LO_LO_ALM Unacknowledged 0 R W Alarm State 0 R Time Stamp 0 R Sub code 0 R Value 0 R Table 16 Bus parameters analog input blocks AI continued Parameter Description Default R W ...

Page 56: ...80 Good Active Advisory Alarm 10 00 10 xx 0 x 88 Good Active Critical Alarm 10 00 11 xx 0 x 8C Uncertain Uncertain Non Specific 01 00 00 xx 0 x 40 Last Usable Value LUV 01 00 01 xx 0 x 44 Substitute Set 01 00 10 xx 0 x 48 Initial Value 01 00 11 xx 0 x 4C Sensor Conversion Not Accurate 01 01 00 xx 0 x 50 Engineering Unit Violation 01 01 01 xx 0 x 54 Sub Normal 01 01 10 xx 0 x 58 Bad Non Specific 00...

Page 57: ... R W Bytes Data type Range ST_REV The revision of the static data associated with the function block Used by the host to determine when to re read the static data R 2 The revision value is incremented every time a static parameter in the block is changed TAG DESC The user description of the intended application of the block R W 32 Default Text STRATEGY The strategy field can be used to identify a ...

Page 58: ...Manual BLOCK_ERR Reflects the error status associated with the hardware or software of the block It is a bit string so multiple errors may be shown R 2 UPDATE_EVENT Unacknowledged Update State Time Stamp Static Rev Relative Index R 1 1 8 2 2 Default 0 BLOCK_ALM Unacknowledged Alarm State Time Stamp Subcode Value R 1 1 8 2 1 Default 0 Table 19 Transducer block bus parameters continued Parameter Des...

Page 59: ...ter R 1 Default 0 COLLECTION_ DIRECTORY A directory that specifies the number starting indices and DD item of IDs of the data collection in each transducer within a transducer block Used by the host for efficient transfer of information R 36 Output INPUT_RANGE Selects the connection of the sensor R W 2 uns16 0 LO_LEVEL 1 HI_LEVEL POLARIZATION_VOLTAGE Sets the polarization voltage R W 4 float 1000 ...

Page 60: ... value depending on the selected measuring method in APPLICATION parameter R W 2 uns16 0 DO_ 1 DO_mg l 2 DO_ g l 3 DO_ppm 4 DO_ppb 5 GAS_ppm 6 GAS_ FILTER_TIME Sets the filter time of the input filter R W 2 uns16 0 120 Default 0s IMPEDANCE Shows the impedance of the sensor R 4 float SENSOR_CURRENT Shows the momentary current of the sensor R 4 float Temperature Table 19 Transducer block bus paramet...

Page 61: ...sensor being used R W 2 uns16 1000 NTC30 1002 NTC22 TEMP_WIRE_IMPEDANCE Sets the wire impedance of the temp sensor Typically 0 unless the wire of the sensor gets too long R W 4 float Default 0 TEMP_SENSOR_CAL Desired temperature reading used for temperature measurement calibration R W 4 float 10 10K Default 0 Concentration Saturation PROCESS_PRESSURE_ UNIT Selects the process pressure measurement ...

Page 62: ... Oxy sensor in Ampere R W 4 float 30 110 Sensor A 220 525 Sensor B Default 60 E 9A CAL_ZERO The zero offset resulting from a calibration in Ampere R W 4 float 2 2 Default 0 E 9A CAL_SETTLINGTIME Shows the settling time in seconds R 4 float Default 0 s CAL_RH Shows the relative humidity in R 4 float CAL_PRESSURE Shows the pressure R 4 float CAL_TEMP Shows the temperature which was used during calib...

Page 63: ...CAL_SAMPLE_PRD_ STORED_VAL Shows the stored value of the first step of Oxy product calibration R float Default 0 if step 1 of product calibration was not started CAL_PRODUCT Sets the value for the 2nd part of Oxy product calibration R W 4 float Alert HOLD Sets the device to HOLD mode R W 1 uns8 0 Off 1 On SENSOCHECK Enables or disables Sensocheck R W 1 uns8 0 Off 1 On ALARM_LED_MODE Sets the LED t...

Page 64: ... of the Sensoface R 1 uns8 0 Good 2 Bad Identification and local parameter setting SW_REV_LEVEL Software revision number R 2 uns16 HW_REV_LEVEL Hardware revision number R 1 uns8 Table 19 Transducer block bus parameters continued Parameter Description R W Bytes Data type Range ...

Page 65: ...oxygen PRIMARY_VALUE_TYPE GAS_ppm or GAS_ APPLICATION Measurement in gases CALIBRATION_MODE Conc or Sat 2 Collect a grab sample and set CAL_SAMPLE_PRD to sample The measured value of the sample is stored After writing the parameter is automatically reset to NOP no operation 3 Read the parameter CAL_SAMPLE_PRD_STORED_VAL It contains the stored value 4 Measure the grab sample and write the lab value...

Page 66: ...Operation Foundation Fieldbus 64 ...

Page 67: ...o specify the sensor range and other parameters for the system 7 1 1 Configuration steps 1 Press MEAS CAL and enter 1200 to enter the configuration mode 2 Use the arrow and enter keys to change the settings All settings and options are shown in section 7 1 2 To exit the configuration mode at any time press MEAS CAL and then ENTER The Hold mode will be active for 20 seconds and then the measured va...

Page 68: ...o Level Hi Level default Select the units Lo Level µg L ppb mg L ppm default Hi Level mg L ppm default Select the temperature unit Auto C default Auto F man C man F Bus C 20 150 C Bus F 4 302 F If Auto is selected select the temperature sensor NTC 22 k default NTC 30 k Select the pressure measurement unit BAR default KPA PSI Enter the process pressure 0 9 999 bar default 1 013 BAR ...

Page 69: ...0 Enter polarization voltage U Pol 0 mV to 800 mV default 675 mV 0mV Off Select Sensocheck CHECK ON Continuous Sensocheck evaluation of sensor function CHECK OFF default Select the calibration mode CAL Saturation Sat Concentration Conc default Enter cal timer interval 0000 9999 h default 0000 h Off Enter Profibus address Edit 0001 0126 default 0126 Table 20 PROFIBUS PA communication Cause No of bi...

Page 70: ... 0100 0111 0100 1111 Failure ERR SENSOCHECK Yes Zero point Slope 8 0101 00xx Maintenance req CHK ZERO SLOPE Yes Sensor response time 9 0101 00xx Maintenance req CHK EL RESPONSE Yes Calibration timer Cal prompt 10 0101 00xx Maintenance req CAL REQUIRED Yes Calibration 9 0100 0111 0100 1111 Function check CAL RUNNING Yes Configuration 10 1010 00xx Function check CONF RUNNING Yes Table 20 PROFIBUS PA...

Page 71: ... 1101 Limit 1 Bit 4 LO_LO_LIMIT OXY HI_HI_LIM FB temperature 18 1000 1110 Limit 2 Bit 1 HI_HI_LIMIT TEMP HI_LIM FB temperature 19 1000 1010 Limit 2 Bit 2 HI_LIMIT TEMP LO_LIM FB temperature 20 1000 1001 Limit 2 Bit 3 LO_LIMIT TEMP LO_LO_LIM FB temperature 21 1000 1101 Limit 2 Bit 4 LO_LO_LIMIT TEMP Logbook empty 22 Function check EMPTY LOGBOOK Table 20 PROFIBUS PA communication continued Cause No ...

Page 72: ...Operation Profibus PA 70 ...

Page 73: ...d mode for safety reasons The loop current is frozen at the value specified in the o1 HoLD menu option The Sensoface icon is inactive The calibration mode indicator is displayed Figure 12 on page 33 To exit the calibration mode at any time press CAL and then ENTER The output current will be held for 20 seconds and the measured value will be displayed Note Calibrations must be performed by trained ...

Page 74: ...um the displayed current can be taken directly Complete the following steps to set the zero point 1 Press CAL enter passcode 1001 ENTER The main display will show CAL ZRO and then the entered value in nA for the zero point The secondary display shows the measured current 2 Place the sensor in an oxygen free medium 3 Press ENTER to accept the value or correct the value and then press ENTER 4 The sl...

Page 75: ...NTER A drift check will begin The drift check may take some time When complete the display will show the concentration in the units specified in the configuration menu Note To exit the drift check after 10 seconds press CAL accuracy will be reduced 5 Accept the calculated value for the concentration or adjust the value as necessary and then press ENTER The display will show the new slope and zero ...

Page 76: ...ift check will begin The drift check may take some time When complete the display will show the concentration in the units specified in the configuration menu Note To exit the drift check after 10 seconds press CAL accuracy will be reduced 5 Accept the calculated value for the concentration or adjust the value as necessary and then press ENTER The display will show the new slope and zero relative ...

Page 77: ...Hold 6 Press ENTER to return to the measure mode 8 1 4 Calibration by comparison The sensor can be calibrated for DO or gas volume concentration by entering the sample value from a measurement in an instrument such as a laboratory or portable meter The sensor does not need to be removed from the process during calibration The sample temperature should correspond to the measured process temperature...

Page 78: ...on via Foundation Fieldbus see section 6 2 4 on page 63 8 2 Temperature sensor adjustment Complete the following steps to calibrate the temperature sensor 1 Press CAL enter passcode 1015 ENTER CAL TMP will be displayed for 3 seconds The process temperature will be shown 2 Measure the process temperature with an external thermometer 3 Use the UP ARROW and RIGHT ARROW to enter the value of the tempe...

Page 79: ... instructions in section on page 20 before conducting any maintenance tasks 9 1 Cleaning the instrument Use only a moistened antistatic lint free cloth to remove dust dirt and spots from the external surfaces of the transmitter Use a mild household cleaner if necessary 9 2 Sensor maintenance Refer to the user manual supplied with each sensor for specific cleaning requirements ...

Page 80: ...Maintenance 78 ...

Page 81: ...sensor electrodes and wires for open circuits When problems are detected the error message Err 33 is displayed along with an icon corresponding to the type of problem Table 23 shows the sensor types that Sensocheck monitors Sensocheck can be switched off in the configuration menu Note For confirmation a Sensoface is displayed after calibration Table 22 Sensoface description Sensoface Description T...

Page 82: ... nA 300 600 seconds 80 100 expired 30 nA 1 0 nA 600 seconds timer expired 110 nA 1 0 nA 600 second timer expired Table 24 Error codes Code Description Corrective action ERR 01 Measured value SAT range flashes value is above or below the range limit Make sure that the correct sensor is connected to the transmitter Replace sensor and cable ERR 02 Measured value Conc range flashes value is above or b...

Page 83: ...nsmitter ERR 12 Current output icon flashes current is above 20 5 mA Make sure of the current output selection ERR 13 Current output icon flashes reading range value set too large or too small Check the range settings ERR 33 Sensocheck icon flashes error with sensor Make sure of the configuration settings Replace sensor and cable ERR 98 CONF flashes configuration or calibration data is defective M...

Page 84: ... values in the configuration menu are correct Make sure of the temperature specification in configuration Replace the sensor CAL ERR with calibration timer icon Calibration canceled due to large drift in mV reading Make sure that the temperature does not change during calibration Make sure that the cable is sufficiently shielded from strong electric fields Make sure that the sensor has electrolyte...

Page 85: ...e 0000 The last error message will show for 20 seconds or press ENTER to return immediately to the measuring mode After viewing the error the message will be deleted View the sensor current sensor monitor From the measuring mode press CONF and enter passcode 2222 The measured uncorrected current will show in the main display Press ENTER to return to the measurement mode Specify output current From...

Page 86: ...Troubleshooting 84 ...

Page 87: ...02 si792x D PA Dissolved Oxygen CID1 ATEX Zone 1 LXV504 99 76102 si792x D FF Dissolved Oxygen CID1 ATEX Zone 1 LXV504 99 77102 11 2 Accessories Description Catalog number Panel Mount Installation Kit si792 LZY484 Pipe Mount Installation Kit si792 LZY483 Protective Hood si792 LZY485 si792 D Dissolved Oxygen Manual English DOC026 53 00797 si792 Series Complete Documentation on CD DOC086 98 00794 ...

Page 88: ...Parts and accessories 86 ...

Page 89: ...or Refer to Table 27 for default passcodes Table 27 Default passcode settings Display Function Default setting Cal INFO Calibration information 0000 CAL 0 CAL Calibration zero 1001 CAL CAL Calibration Saturation Concentration 1100 CAL PROD Product calibration 1105 CAL RTD Temperature sensor adjustment 1015 CFG ERR Error information 0000 CFG CONF Configuration 1200 CFG SNSR MO Probe monitor 2222 CF...

Page 90: ...asscode editor cannot be accessed without the administrator passcode Record changes in a secure location It is not possible to override this system if the passwords are lost The unit must be exchanged Contact technical support for assistance ...

Page 91: ...A averaging filter 38 C calibration by product comparison 75 errors 82 temperature probe 76 zero adjustment 72 calibration mode exiting 71 cleaning the transmitter 77 configuration alarm 41 current output 44 66 overview 35 temperature 40 D diagnostic functions 83 dimensions 19 20 display 33 E error codes 80 H hold mode ...

Page 92: ...g hold 41 M measurement mode 35 menu navigation 37 N navigation menu 37 noise reducing 38 S Sensocheck description 79 setting on or off 41 Sensoface 79 symbols display 33 T temperature compensation 40 Testing 16 time constant 38 troubleshooting 83 W wiring 2 electrode probe 24 25 sensor 25 ...

Page 93: ...Index 91 Z zero adjustment 72 ...

Page 94: ...Index 92 ...

Page 95: ...93 ...

Page 96: ... com www hach com HACH LANGE GMBH Willstätterstraße 11 D 40549 Düsseldorf Tel 49 0 2 11 52 88 320 Fax 49 0 2 11 52 88 210 info hach lange de www hach lange de HACH LANGE Sàrl 6 route de Compois 1222 Vésenaz SWITZERLAND Tel 41 22 594 6400 Fax 41 22 594 6499 Hach Company Hach Lange GmbH 2007 2008 2013 2014 All rights reserved Printed in Germany ...

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