Hach si792 D-FF Series User Manual
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Hach si792 D-FF Series User Manual

Hach si792 D-FF Series User Manual

Dissolved oxygen 2-wire transmitters
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DOC026.52.00797
si792 D
si792x D
si792x D-FF
si792x D-PA
Dissolved Oxygen
2-Wire Transmitters
USER MANUAL
03/2014, Edition 8

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  • 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 3: Table Of Contents

    Table of Contents ............5 Section 1 Specifications ........... 11 Section 2 General Information 2.1 Safety information ..............11 2.1.1 Use of hazard information ..........11 2.1.2 Precautionary labels............11 2.2 General product information............. 13 2.2.1 Product overview............... 13 2.2.2 FDA 21 CFR part 11 Compliance (HART only)....13 2.2.2.1 Electronic signatures for si792(x) D transmitters ..
  • Page 4 Table of Contents ........31 Section 4 Interface and navigation 4.1 si792(x) D (4–20 mA/HART) interface........31 4.2 si792x D-FF and si792x D-PA interface ........32 4.3 Display..................33 Section 5 Operation—si792(x) D ................. 35 (4–20 mA/HART) 5.1 Measure mode ................. 35 5.2 Configuration ................
  • Page 5 Table of Contents ........65 Section 7 Operation—Profibus PA 7.1 Configuration ................65 7.1.1 Configuration steps ............65 7.1.2 Configuration menu ............66 7.2 Profibus PA communication ............. 67 .............. 71 Section 8 Calibration 8.1 Calibration ................71 8.1.1 Zero calibration ..............72 8.1.2 DO calibration (default) .............
  • Page 6 Table of Contents...

  • Page 7: Section 1 Specifications

    Section 1 Specifications Specifications are subject to change without notice. Transmitter Composition PBT (polybutylene terephthalate) Display 3 knockouts for M20 x 1.5 strain reliefs Fittings 2 knockouts for ½ inch NPT or rigid metallic conduit 12–30 VDC (30 VDC maximum) Power Requirements—HART 100 mA maximum 0.8 W maximum (Ex)

  • Page 8: Specifications

    Specifications si792 D FM listed for: Class I, Division 2 si792x D; si792x D-FF; si792x D-PA FM listed for: Class I, Division 1, Groups A, B, C, D Class II, Division 1, Groups E, F, Class III, Division 1 Class I, Zone 0, AEx ia, Group IIC T4 Enclosure: Type 2 Canada: si792 D CSA certified to:...
  • Page 9 Specifications Storage Temperature –20 to 70 °C (–4 to 158 °F) Operating Temperature –20 to 55 °C (–4 to 131°F) Weight Approximately 1 kg Dimensions H 144 mm, W 144 mm, D 105 mm Parameters and calibration data Data retention >10 years (EEPROM) Modifiable according to FDA 21 CFR Passcodes...
  • Page 10 Specifications Bus-powered device with constant current consumption. Cyclic and acyclic data exchange. Physical block, 2 analog input function blocks, 2 discrete input blocks, logbook block, alarm block. PNO directive: PROFIBUS-PA, Profile for Process Control Devices, Profibus-PA (DPV1) Version 3.0 Physical interface: MBP-IS (Manchester Bus Powered-Intrinsically Safe) to IEC 1158-2 (DIN-EN 61158-2) Connection: via segment coupler to...
  • Page 11 Specifications 0–50.00 mg/L; 0–50.00 ppm Range, concentration (–10 to 80 °C) 0–9999 µg/L; 0–9999 ppb 0–9999 ppm; 0–120.0% (–10 to 80 °C) Range, volume concentration in gas Process pressure 0–9.999 bars (0–999.9 kPa/0–145 PSI) Pressure correction 0–9.999 bars (0–999.9 kPa/0–145 PSI) Salinity correction 0–45 g/kg Probe calibration...
  • Page 12 Specifications...

  • Page 13: Section 2 General Information

    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.

  • Page 14: General Information

    General Information Electrical equipment marked with this symbol may not be disposed of in European public disposal systems after 12 August of 2005. In conformity with European local and national regulations (EU Directive 2002/96/EC), European electrical equipment users must now return old or end-of life equipment to the Producer for disposal at no charge to the user.

  • Page 15: General Product Information

    General Information 2.2 General product information 2.2.1 Product overview The si792 D and si792x D transmitters are used for continuous dissolved oxygen and temperature measurement. Applications include biotechnology, chemical, pharmaceutical and food processing as well as environmental monitoring and sewage treatment. This manual describes the installation, operation and maintenance for standard and EU models of the si792 D series transmitters.

  • Page 16: Electronic Signatures For Si792(X) D Transmitters

    General Information 2.2.2.1 Electronic signatures for si792(x) D transmitters Device functions are protected by passcode access, which prevents unauthorized modification of device settings or manipulation of measurement results. Passcodes may be used as electronic signatures. Passcodes can be edited with the passcode editor (Appendix A on page 87).

  • Page 17: Section 3 Installation

    Section 3 Installation DANGER Explosion hazard. Trained personnel only must install or commission the equipment. DANGER Explosion hazard. Never connect items to the transmitter that are not specified on the control drawing. Do not connect or disconnect any equipment unless power has been switched off or the area is known to be non-hazardous.

  • Page 18: Hazardous Location

    Installation 3.1 Hazardous location Before installation, review the applicable Hazardous Location Control Drawings or ATEX EC-type Examination certificate included with the instrument and on the provided documentation CD. Follow all regulations specified for the installation location. Refer to the documentation CD for manuals provided in other languages.
  • Page 19 Installation Figure 1 Instrument Components 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...

  • Page 20: Mechanical Installation

    Installation 3.3 Mechanical installation 3.3.1 Transmitter assembly Refer to and the following instructions to assemble the Figure 1 transmitter. 1. Insert the strain relief fittings in the holes of the back enclosure and secure with the hex nuts (Figure 2. Insert the conduit hardware or plugs in the back enclosure and secure with the hex nuts.
  • Page 21 Installation Figure 2 Wall attachment 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 ½ inch conduit opening (2x) Ø...

  • Page 22: Wiring Safety Information

    Installation 3.4 Wiring Safety Information When making any wiring connections to the instrument, the following warnings and notes must be adhered to, as well as any warnings and notes found throughout the individual installation sections. For more safety information refer to section 2.1 on page DANGER Always disconnect power to the instrument when making any...

  • Page 23: Electrical Installation

    Installation Electrical installation DANGER Explosion hazard. Do not connect any components that are not specified for the device. Always defer to the Hazardous Location Control Drawing. DANGER Hamilton dissolved oxygen sensors are ATEX certified. The combination of Hamilton dissolved oxygen sensors and the si792 D transmitter are FM C1D1 certified.
  • Page 24 Installation Figure 3 Wire preparation and insertion 1 Stripping lengths for cables 6 Terminals (vary by model number) 2 Stripping lengths for coaxial cables 7 Typical terminal 8 Seat insulation against connector 3 Cable shield 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: Power And Communication Connections

    Installation 3.5.2 Power and communication connections DANGER Explosion hazard. The AC power source for the power supply unit cannot exceed 250 VAC. Do not connect the transmitter directly to an AC power source. DANGER Explosion hazard. The output voltage of the power supply unit cannot exceed 30 VDC.

  • Page 26: Si792(X) D (4-20 Ma/Hart) Wiring

    Installation 3.5.2.1 si792(x) D (4–20 mA/HART) wiring DANGER Explosion hazard. Never connect items to the transmitter that are not specified on the control drawing. Refer to and the following steps to connect the Figure 6 Table 2 power supply to the si792(x) D transmitter. Figure 4 si792(x) D (4–20 mA/HART) wiring 1 HART connection (see warnings in 2 Wiring terminals—see...

  • Page 27: Si792X D-Ff And Si792X D-Pa Wiring

    Installation 3.5.2.2 si792x D-FF and si792x D-PA wiring Refer to to connect power and communications Figure 5 Table 3 to the si792x D-FF or si792x D-PA transmitters. 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 Terminal No.

  • Page 28: Oxygold G/Oxyferm Sensor-Si792(X) D (4-20 Ma/Hart)

    Installation 3.5.3.1 Oxygold G/Oxyferm sensor—si792(x) D (4–20 mA/HART) to wire the sensor to the transmitter. Figure 6 Table 4 Figure 6 Oxygold G/Oxyferm sensor (VP connector)—si792(x) D 1 Wiring terminals—see Table 4 Table 4 Terminal assignments—Oxygold G or Oxyferm sensor Terminal No.

  • Page 29: Oxygold G/Oxyferm Sensor-Si792X D-Ff Or Si792X D-Pa

    Installation 3.5.3.2 Oxygold G/Oxyferm sensor—si792x D-FF or si792x D-PA to wire the sensor to the transmitter. Figure 7 Table 5 Figure 7 si792x D-FF and si792x D-PA wiring for Oxygold G/Oxyferm 1 Wiring terminals—see Table 5 Table 5 Terminal assignments—Oxygold G or Oxyferm sensor Terminal No.

  • Page 30: Oxysens Sensor-Si792(X) D (4-20 Ma/Hart)

    Installation 3.5.3.3 Oxysens sensor—si792(x) D (4–20 mA/HART) to wire the sensor to the transmitter. Figure 8 Table 6 Figure 8 si792(x) D wiring example for Oxysens sensor (fixed cable) 1 Wiring terminals—see Table 6 Table 6 Terminal assignments—Oxysens sensor Terminal No. Assignment Wire color Cathode (coaxial center wire) clear...

  • Page 31: Oxysens Sensor-Si792X D-Ff And Si792X D-Pa

    Installation 3.5.3.4 Oxysens sensor—si792x D-FF and si792x D-PA to wire the sensor to the transmitter. Figure 9 Table 7 Figure 9 si792x D-FF and si792x D-PA wiring example for Oxysens (fixed cable) 1 Wiring terminals—see Table 7 Table 7 Terminal assignments—Oxysens sensor Terminal No.

  • Page 32: Hart Communication Connection

    Installation 3.6 HART communication connection DANGER Explosion hazard. Never connect items to the transmitter that are not specified on the control drawing. 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.

  • Page 33: Section 4 Interface And Navigation

    Section 4 Interface and navigation The si792 transmitter user interface contains a display, indicators and keys for navigation and menu selection. 4.1 si792(x) D (4–20 mA/HART) interface Use the arrow and enter keys to scroll through the menu and change settings.

  • Page 34: Si792X D-Ff And Si792X D-Pa Interface

    Interface and navigation 4.2 si792x D-FF and si792x D-PA interface Refer to to identify the keys and indicators of the si792x D-FF Figure 11 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...

  • Page 35: Display

    Interface and navigation 4.3 Display identifies all of the possible icons and symbols that may be Figure 12 seen in the si792 transmitter display. Figure 12 Display 1 Passcode 13 Secondary display 2 Temperature 14 Alarm mode 3 4–20 mA output (HART) 15 Manual temperature on 4 Limit values (FF and Profibus PA) 16 Calibration mode...
  • Page 36 Interface and navigation...

  • Page 37: Section 5 Operation-Si792(X) D (4-20 Ma/Hart)

    Section 5 Operation—si792(x) D (4–20 mA/HART) The following section describes how to navigate and operate the si792(x) D transmitters. 5.1 Measure mode In the measure mode the display shows the dissolved oxygen value and the temperature. The status bar is shown above the measure mode indicator.

  • Page 38: Output Configuration

    Operation—si792(x) D (4–20 mA/HART) Table 8 Configuration menu 4–20 mA current output Temperature sensor Correction for pressure, Corr 1200 salinity, polarization voltage. Calibration setup Alarm settings To exit the configuration mode at any time, press and then CONF . The output current will be held for 20 seconds and the ENTER measured value will be displayed.
  • Page 39 Operation—si792(x) D (4–20 mA/HART) Table 9 Output setup menu—out.1 (Continued) section 5.2.1.1 Specify the value for the 4 mA signal ( o1. 4mA Enter the minimum DO or GAS value (default: 0%) section 5.2.1.1 Specify the value for the 20 mA signal ( o1.20mA Enter the maximum DO or GAS value (default: 500%) section 5.2.1.2...

  • Page 40: Output Range

    Operation—si792(x) D (4–20 mA/HART) 5.2.1.1 Output range The upper and lower end of the dissolved oxygen range should correspond to the 4 mA and 20 mA signals. For example, to set a range of 3–10 mg/L O , set the 4 mA signal to a value of 3 mg/L and the 20 mA signal to a value of 10 mg/L O 5.2.1.2 Time averaging filter An averaging filter is available to reduce noise in the output signal.

  • Page 41: Output Signal During Hold

    Operation—si792(x) D (4–20 mA/HART) 5.2.1.4 Output signal during HOLD The output signal during hold periods can be maintained 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...

  • Page 42: Temperature Sensor Configuration

    Operation—si792(x) D (4–20 mA/HART) 5.2.2 Temperature sensor configuration An overview of the temperature compensation setup menu is shown in Table Table 10 Temperature sensor setup menu—tc Select temperature unit °C (default) tc.UnIT °F Select temperature sensor 22NTC (default) tc.rTD 30NTC Press to access a menu item.

  • Page 43: Calibration Mode Configuration

    Operation—si792(x) D (4–20 mA/HART) 5.2.4 Calibration mode configuration An overview of the calibration setup menu is shown in 12. Refer Table for buffer tables. Appendix A on page 87 Table 12 Calibration mode setup menu—CAL Select calibration units SAt (default) CA.
  • Page 44 Operation—si792(x) D (4–20 mA/HART)

  • Page 45: Section 6 Operation-Foundation Fieldbus

    Section 6 Operation—Foundation Fieldbus The following section describes how to navigate and operate the si792x D-FF. The transmitter can be operated as follows: • Direct interface with the transmitter (section 6.1) • Foundation Fieldbus communication (section 6.2 on page 6.1 Configuration Use the configuration mode to specify the sensor, range and other parameters for the system.

  • Page 46: Configuration Menu

    Operation—Foundation Fieldbus 6.1.2 Configuration menu Select signal level Hi level (default) ln.rnGE Lo level Select the sensor Type A (default). See Table 1 on page ln.SnSR Type B. See Table 1 on page Select process medium (O dissolved (DO) / gas (GAS) % (default) mg/L DO (default)
  • Page 47 Operation—Foundation Fieldbus 6.1.2 Configuration menu (continued) 0.000–9.999 BAR (default: 1.013 BAR) Co.PrES 999.9 kPa / 145.0 PSI (not in sensor) Select salinity correction Co.SAL 0.00–45.00 mg/L (default: 0.00 mg/L) Select calibration mode SAt (default) Ca.MOD Conc Select calibration interval CA.tiME 0000–9999 h (default 0000 h) Select Sensocheck CHECK ON...

  • Page 48: Foundation Fieldbus Communication

    (out of service) Target Actual — MODE_BLK Permitted OOS, Auto Normal Auto BLOCK_ERR Block error RS_STATE Resource state TEST_RW Test DD_RESOURCE DD resource ‘ MANUFAC_ID Manufacturer ID 0x001D6D for Hach DEV_TYPE Device type 0x0064 DEV_REV Device revision DD_REV DD revision...
  • Page 49 Operation—Foundation Fieldbus Table 14 Bus parameters—resource block (RB) (continued) Parameter Description Default Grant GRANT_DENY Deny HARD_TYPES Hardware type RESTART Restart FEATURES Feature supported Reports/ Soft W Lock FEATURES Feature selected Reports/ Soft W Lock Scheduled/ CYCLE_TYPE Cycle type Block Execution Scheduled/ CYCLES_SEL Cycle selected...
  • Page 50 Operation—Foundation Fieldbus Table 14 Bus parameters—resource block (RB) (continued) Parameter Description Default Unacknowledged Alarm state BLOCK_ALM Time stamp Sub-code Value Current Unacknowledged ALARM_SUM Unreported Disabled Automatic acknowledge ACK_OPTION 0 (Disabled) option WRITE_PRI Write priority Unacknowledged Alarm state WRITE_ALM Time stamp Sub-code Value ITK_VER...

  • Page 51: Standard Analog Input Block (Ai)

    Operation—Foundation Fieldbus 6.2.2 Standard analog input block (AI) Three Analog Input Function Blocks provide for cyclic transmission of measured values (currently measured value with status, alarm limits, freely selectable process parameter). 6.2.2.1 Operating modes Use the MODE_BLK parameter to set the following operating modes: •...

  • Page 52: Data Processing

    Operation—Foundation Fieldbus 6.2.2.3 Data processing Use the L_TYPE parameter to apply a linearization function to the data. • Direct—data is sent directly from the TB to the AI without processing. The units for the XD_SCALE and OUT_SCALE parameters must be identical. •...

  • Page 53: Bus Parameters For The Analog Input Block

    Operation—Foundation Fieldbus 6.2.2.5 Bus parameters for the analog input block The bus parameters for the analog input function block (AI) are shown Table Table 16 Bus parameters/analog input blocks (AI) Parameter Description Default ST_REV Static Revision TAG_DESC TAG Description STRATEGY Strategy ALERT_KEY Alert Key...
  • Page 54 Operation—Foundation Fieldbus Table 16 Bus parameters/analog input blocks (AI) (continued) Parameter Description Default Grant GRANT_DENY Deny IO_OPTS IO Block Options STATUS_OPTS Status Options CHANNEL Channel L_TYPE Linearization Type LOW_CUT Low Cut Off PV_TIME Filter Time Percent Value FIELD_VAL Status Unacknowledged Update State UPDATE_EVT Time Stamp...
  • Page 55 Operation—Foundation Fieldbus Table 16 Bus parameters/analog input blocks (AI) (continued) Parameter Description Default LO_LIM Low Limit –INF LO_LO_PRI Low Low Priority LO_LO_LIM Low Low Limit –INF Unacknowledged Alarm State HI_HI_ALM Time Stamp Sub-code Value Unacknowledged Alarm State HI_ALM Time Stamp Sub-code Value Unacknowledged...

  • Page 56: Cyclic Measured Value Status

    Operation—Foundation Fieldbus 6.2.2.6 Cyclic measured value status The cyclic measured value status is shown in Table Table 17 Cyclic measured value status Bin-coding Hex- Priority Quality Sub-status (no limit bits) coding Good Non-Specific 10 00 00 00 0 x 80 Good Good Active Advisory Alarm 10 00 10 xx...

  • Page 57: Transducer Block

    6.2.3 Transducer block The transducer block provides for acyclic data transmission. Calibration, configuration, and maintenance commands coming from the control station are processed in the Transducer Block. The bus parameters for the transducer block (TB) are shown in (default values Table 19 are in bold type).
  • Page 58 Table 19 Transducer block bus parameters (continued) Data Parameter Description R/W Bytes Range type Allows the user to set the Target, Permitted, and Normal device mode. Displays the Available modes: Actual mode. Automatic, Out Of MODE_BLK Target Service Actual (OOS), Manual Permitted Normal Reflects the error status...
  • Page 59 Table 19 Transducer block bus parameters (continued) Data Parameter Description R/W Bytes Range type Directory that specifies the TRANSDUCER_ number and the starting indices DIRECTORY of the transducers in the transducer block. Default: 65535 = TRANSDUCER_TYPE Identifies the transducer type. other A transducer block sub-code.
  • Page 60 Table 19 Transducer block bus parameters (continued) Data Parameter Description R/W Bytes Range type 0 = Dissolved Selects the measurement oxygen method APPLICATION R/W 2 uns16 1 = Measurement in (DO/ GAS) gases Shows the primary value and status PRIMARY_VALUE DS_65 Value Status...
  • Page 61 Table 19 Transducer block bus parameters (continued) Data Parameter Description R/W Bytes Range type Process temperature value and status SECONDARY_VALUE_2 DS_65 Value Status Degree C or degree F. Changes SECONDARY_VALUE_ 1001 = °C the unit of temperature being R/W 2 uns16 UNIT_2 1002 = °F...
  • Page 62 Table 19 Transducer block bus parameters (continued) Data Parameter Description R/W Bytes Range type 0–9.999 BAR 0–999.9 kPa PROCESS_PRESSURE Sets the process pressure R/W 4 float 0–145 PSI Default: 1.013 BAR 0–45 g/kg SALINITY Sets the salinity value R/W 4 float Default: 0 g/kg Calibration...
  • Page 63 Table 19 Transducer block bus parameters (continued) Data Parameter Description R/W Bytes Range type Shows the value of saturation CAL_VALUE_SAT float calibration Shows the value of CAL_VALUE_CONC float concentration calibration Sets the calibration timer (time 000–9999h CALIBRATION_TIMER in which the device should be R/W 4 float Default: 0000 h =...
  • Page 64 Table 19 Transducer block bus parameters (continued) Data Parameter Description R/W Bytes Range type Shows the current status of the 0 = Good SENSOFACE_STATUS uns8 Sensoface. 2 = Bad Identification and local parameter setting SW_REV_LEVEL Software revision number uns16 HW_REV_LEVEL Hardware revision number uns8...

  • Page 65: Calibration Via Foundation Fieldbus

    Operation—Foundation Fieldbus 6.2.4 Calibration via Foundation Fieldbus The transmitter can be calibrated via Foundation Fieldbus using the comparison or grab sample method. 1. Make sure the system is configured for the value that is measured: • Dissolved oxygen: PRIMARY_VALUE_TYPE = DO_mg/l, DO_ppm, DO_µg/l, DO_ppb or DO_% APPLICATION = Dissolved oxygen CALIBRATION_MODE = Conc or Sat...
  • Page 66 Operation—Foundation Fieldbus...

  • Page 67: Section 7 Operation-Profibus Pa

    Section 7 Operation—Profibus PA The following section describes how to navigate and operate the si792x D-PA transmitter. The transmitter can be operated as follows: • direct interface with the transmitter (section 7.1) • remote operation from the control station (section 7.2 on page Note: Calibration must be completed by direct interface with the transmitter.

  • Page 68: Configuration Menu

    Operation—Profibus PA 7.1.2 Configuration menu Select the sensor Type A (standard; default). See Table 2 on page Type B (trace measurements). See Table 2 on page Select the range Lo-Level Hi-Level (default) Select the units µg/L Lo-Level mg/L % (default) mg/L Hi-Level % (default)

  • Page 69: Profibus Pa Communication

    Operation—Profibus PA 7.1.2 Configuration menu (continued) Enter the salinity 0–45.00 SAL (default: 00.00) 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 Saturation (Sat) Concentration (Conc) (default)
  • Page 70 Table 20 PROFIBUS PA communication (continued) Physical Block No. of Text of binary message Logbook Analog input (PB) Cause binary status (default) (default) message Global status Memory error 0000 11xx Failure ERR MEMORY (RAM, ROM, EPROM) 0100 0111 Measurement range Failure ERR SAT VALUE violation...
  • Page 71 Table 20 PROFIBUS PA communication (continued) Physical Block No. of Text of binary message Logbook Analog input (PB) Cause binary status (default) (default) message Global status HOLD 0100 0111 Function check HOLD (Device state = 0100 1111 Maintenance) HI_HI_LIM Limit 1 1000 1110 HI_HI_LIMIT OXY FB analysis...

  • Page 73: Section 8 Calibration

    Section 8 Calibration 8.1 Calibration The transmitter is adjusted to the sensor through the calibration. The available calibration methods are shown in 21. Calibrate the Table sensor in air when the sensor can be removed from the process. The sensor will stabilize more quickly in air. When the sensor cannot be removed from the process (e.g.

  • Page 74: Zero Calibration

    Calibration 8.1.1 Zero calibration Perform a zero calibration as the first point whenever a 2-point calibration is required. Note: The DO sensor models SE 704, SE 705 and InPro6000 have a very low zero current. Therefore a zero calibration is only recommended for measurement of oxygen traces.

  • Page 75: Do Calibration (Default)

    Calibration (section 8.1.1 on page 72). 8.1.2.1 Calibration in air (recommended) 1. Press , enter passcode: 1100, . The display will briefly ENTER show CAL and then the entered (or default) humidity value. 2. Remove the sensor from the process and place in air. 3.

  • Page 76: Calibration In Water

    Calibration 8.1.2.2 Calibration in water The water must be in equilibrium with air (percent saturation for water is 100%). The exchange between air and water is very slow. To speed up the calibration, make sure that there is a steady flow during calibration. 1.

  • Page 77: Calibration By Comparison

    Calibration 2. Remove the sensor from the process and place in air or other (gaseous) calibration medium. 3. Enter the actual relative humidity and press . The display will ENTER show the entered (or default) barometric pressure. 4. Enter the barometric pressure and press .

  • Page 78: Temperature Sensor Adjustment

    Calibration 4. Press , enter passcode: 1105, to access the product ENTER calibration once more. The display will briefly show CAL PRD and then CALC. 5. Edit the displayed value to match the value measured by the laboratory or portable meter and press .

  • Page 79: Section 9 Maintenance

    Section 9 Maintenance DANGER Explosion hazard. Only qualified personnel should conduct the tasks described in this section of the manual. DANGER Electrostatic hazard. Follow the 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.
  • Page 80 Maintenance...

  • Page 81: Section 10 Troubleshooting

    Section 10 Troubleshooting 10.1 Sensoface The Sensoface feature is active whenever Sensocheck is active. This feature monitors the sensor for defects in the sensor or cable, and indicates the maintenance status of the sensor (Table 22). Table 22 Sensoface description Sensoface Description The sensor is functioning properly.

  • Page 82: Error Codes

    Troubleshooting Table 23 Sensocheck limits for Type A sensors Slope Zero Response time Cal timer Adm. 720 seconds 25–130 nA –2–2 nA — range maximum   35–90 nA –0.5–0.5 nA 300 seconds 80% expired 300–600 80–100% 30–35 nA –1.0–0.5 nA seconds expired 300–600...

  • Page 83: Troubleshooting

    Troubleshooting Table 24 Error codes (Continued) Code Description Corrective action Check the temperature sensor wiring. Make sure that the correct temperature sensor is Temperature sensor icon selected in the configuration ERR 03 flashes; open or short circuit; menu. temperature range exceeded Measure resistance of the temperature sensor in the sensor to check for correct...

  • Page 84: Calibration Errors

    Troubleshooting 10.4 Calibration errors describes the calibration error messages. Table 25 Table 25 Calibration error messages Display Description Corrective action Make sure that the specified values in the configuration menu are correct. Slope error icon Slope is out of range Make sure of the temperature specification in configuration.

  • Page 85: Diagnostic Functions

    Troubleshooting 10.5 Diagnostic functions lists the diagnostic functions. Table 26 Table 26 Diagnostic functions Function Description From the measuring mode, press . The output ENTER View the output current will show in the main display for five seconds, then current return to measuring mode.
  • Page 86 Troubleshooting...

  • Page 87: Section 11 Parts And Accessories

    Section 11 Parts and accessories 11.1 si792 D series versions Description Catalog number si792 D, Dissolved Oxygen, CID2 LXV504.99.70002 si792x D, Dissolved Oxygen, CID1, ATEX Zone 1 LXV504.99.70102 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...
  • Page 88 Parts and accessories...

  • Page 89: Appendix A Passcode Editor

    Appendix A Passcode editor For applications requiring compliance with FDA 21 CFR Part 11, certain device functions must be protected with editable passcodes. If passcode protection is not required, use the preset passcodes (Table 27). To activate the passcode editor: 1.
  • Page 90 Passcode editor Important Note: The passcode 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 Index Numerics 22 mA signal ..................38 4–20 mA output error notification ................. 38 hold mode configuration ............. 39 setting the range ................ 38 averaging filter ..................38 calibration by product comparison ............... 75 errors ..................82 temperature probe ..............76 zero adjustment .................
  • Page 92 Index during calibration ................ 71 during output ................39 icons ....................33 setting on or off during hold ............41 measurement mode ................35 menu navigation ................. 37 navigation, menu ................37 noise, reducing ................... 38 Sensocheck description .................. 79 setting on or off ................
  • Page 93 Index zero adjustment .................. 72...
  • Page 94 Index...
  • Page 96 Fax +49 (0) 2 11 52 88-210 orders@hach.com info@hach-lange.de www.hach.com 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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