Knick Stratos 2201 pH Instruction Manual
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Knick Stratos 2201 pH Instruction Manual

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Instruction Manual
Stratos 2201 (X) pH
Stratos 2211 (X) pH with
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Summary of Contents for Knick Stratos 2201 pH

  • Page 1 Instruction Manual Stratos 2201 (X) pH Stratos 2211 (X) pH with HARTr Communication...
  • Page 2 Beuckestr. 22, D–14163 Berlin Postfach 37 04 15, D–14134 Berlin Phone: +49-30-801 91-0 Fax: +49-30-801 91-200 Internet: http://www.knick.de E-mail: knick@knick.de Warranty Defects occurring within 3 years from delivery date shall be remedied free of charge at our plant (carriage and insurance paid by sender).
  • Page 3 Changes for software release 3 Temperature probe adjustment The Stratos can be adjusted to a connected temperature probe. This is particularly useful for Pt 100 temperature probes. (See Pg. 32) Note This function should only be used by experts. Incorrectly set parameters may go unnoticed, but change the measuring properties.
  • Page 4 Changes 4...

  • Page 5: Safety Precautions

    Safety Precautions Be sure to read and observe the following requirements! Warning Never use the Stratos 2201/2211 pH for measurement in areas that are subject to an explo- sion hazard during operation. Be sure that the supply voltage does not exceed 30 Vdc. Warning Stratos 2201/2211 X pH is approved for operation in hazardous locations.

  • Page 6: Information On This Instruction Manual

    Information on this Instruction Manual ITALICS are used for texts which appear in the Stratos 2201/2211 (X) pH display. Bold print is used to represent keys, e.g. cal. Keys for which the functions are explained are frequently shown in the left-hand column.

  • Page 7: Table Of Contents

    Contents Safety Precautions ..... . Safety Functions ....Information on this Instruction Manual .

  • Page 8: Assembly

    1 Assembly Package Contents and Unpacking Unpack the instrument carefully and check the ship- – Bag containing: ment for transport damage and completeness. ➀ ➆ 1 hinge pin 2 sealing plugs The package contains: ➁ ➇ 3 cable ties 5 hexagon nuts ➂...
  • Page 9 105 [4.13] 144 [5.67] [1.06] Note: All dimensions in mm [inches] For Pg 13.5 threaded cable glands (use only plastic glands) 42 [1.65] Pg 13.5 (3 pcs.) (not included in supply) [0.83] 84 [3.31] 43 [1.69] max. 25 78 [3.07] 32 [1.26] 80 [3.15] [0.98]...
  • Page 10 40–60 mm dia. Pipe-mount kit consisting of: [1.57–2.36] ZU 0276 protective hood ➀ ➀ 4 self-tapping screws (if required) ➁ 1 post mounting plate ➂ 2 hose clamps with worm gear drive to DIN 3017 ➁ ➂ For vertical or horizontal post/ pipe mounting Fig.
  • Page 11 Be sure not to notch the cable cores when stripping the insulation! 7 mm [0.28] 13 mm [0.5] ➃ ➄ ➂ ➁ ➀ Dimensions in mm [inches]. ➀ Recommended stripping lengths for multi-core cables ➁ Recommended stripping length for ➄ coaxial cable ➂...

  • Page 12: Installation, Connection And Commissioning

    2 Installation, Connection and Commissioning Proper Use Stratos 2201/2211 (X) pH is used for pH and temper- Warning Never use the Stratos ature measurement in industry, the environment, 2201/2211 pH for measurement in food processing and waste-water field. It can be areas that are subject to an explo- either field-mounted or fixed into a control panel.

  • Page 13: Terminal Assignment

    Terminal Assignment 11 10 – output input shield observe grounding conditions Fig. 7 Terminal assignment of Stratos 2201/2211 (X) pH Installation and Commissioning Warning Installation and commissioning of Warning Stratos 2201/2211 X pH may only the Stratos may only be carried out be connected to an explosion-proof in accordance with this instruction power supply unit (for input ratings...

  • Page 14: Wiring Diagrams (Ph)

    Wiring Diagrams (pH) 5 4 2 1 Fit jumper between terminals 4 + 5. shield Temperature Combination probe electrode Fig. 8a pH measurement with combination electrode and temperature probe,  Sensocheck limited to the glass electrode only 5 4 2 1 Fit jumper between terminals 4 + 5.
  • Page 15 5 4 2 1 Fit jumper between terminals 4 + 5. shield Specify temperature! Combination electrode Fig. 9 pH measurement with combination electrode without temperature probe,  Sensocheck limited to the glass electrode only Capabilities, Connection 15...
  • Page 16 5 4 2 1 Fit jumper between terminals 4 + 5. shield Temperature Reference Glass probe electrode electrode Fig. 10 pH measurement with separate glass and reference electrode and temperature probe,  Sensocheck limited to the glass electrode only 5 4 2 1 Fit jumper between terminals 4 + 5.
  • Page 17 5 4 2 1 shield Insulate! Temperature Aux. Combination probe electrode electrode Fig. 12 pH measurement with combination and aux. electrode and temperature probe,  Sensocheck for glass and reference electrode 5 4 2 1 shield Specify temperature! Insulate! Aux. Combination electrode electrode...
  • Page 18 5 4 2 1 shield Temperature Aux. Reference Glass probe electrode electrode electrode Fig. 14 pH measurement with separate glass, reference and aux. electrode and temperature probe,  Sensocheck for glass and reference electrode 5 4 2 1 shield Specify temperature! Aux.

  • Page 19: Wiring Diagrams (Orp)

    Wiring Diagrams (ORP) 5 4 2 1 shield Insulate! Temperature combination probe ORP electrode Fig. 16 ORP measurement with separate combination ORP electrode and temperature probe 5 4 2 1 shield Specify temperature! Insulate! combination ORP electrode Fig. 17 ORP measurement with combination ORP electrode without temperature probe Capabilities, Connection 19...

  • Page 20: Operation

    3 Operation User Interface Stratos Status fields: - Measuring mode - Calibration mode - Alarm (Contact only for Model 2401) -Wash contact active (only Model 2401 pH) meas conf - Configuration mode Alarm LED Keypad " conf enter Instrument designation Rating plate Fig.

  • Page 21: Display

    Display Loop Senso-  current Calibration Alarm check Display/ Tempera- setting Measured variable Interval/ ture Response time Mode code entry  Sensoface Unit value symbols Continue with Sensor enter data Bar for Wait instrument status Hold state Manual temp specification active Fig.

  • Page 22: Safety Functions

    Safety Functions  Sensoface electrode monitoring  Sensoface provides information on the electrode state. The asym- metry potential, slope and response time during calibration are eva-  luated. Sensocheck continuously monitors the glass and reference electrode. For more detailed information, see chapter “Diagnos- tic, Maintenance and Cleaning”...

  • Page 23: Outputs

    Outputs Loop current The current loop transports power to and output sig- nals from the Stratos. The current is controlled by the measured variable selected in the configuration. The current beginning and end can be set to any desired value. To check connected peripherals (e.g.

  • Page 24: Configuration

    Configuration Here the basic settings of the unit are carried out. Symbols show which parameter is being configured. Activate with conf change parameter with Y and ", conf confirm/continue with enter, end configuration with conf Mode code “1200” During configuration the loop cur- rent is frozen When the configuration mode is exited, the unit re- mains in the Hold state for safety reasons.
  • Page 25 22 mA signal for error message On / OFF  Sensocheck On / OFF (sensor diagnostics) Calibration mode: BUF –00– Knick techn. buffers BUF –01–  Automatic with Calimatic BUF –01– Mettler Toledo techn. buffers BUF –02– Merck/Riedel de Haën BUF –03– Ciba (94) BUF –04–...

  • Page 26: Calibration

    Calibration  You can conduct either a one or a two-point calibra- Automatic calibration with Calimatic tion. The calibration can be carried out with the Cali- and automatic calibration temp detection  matic automatic buffer recognition, with manual buffer input or by entering pre-measured electrode The instrument can only operate Note data.
  • Page 27 Buffer recognition At the end of calibration the slope and asymmetry potential (based on 25 °C) of the electrode are dis- Nominal buffer value is displayed played. Calibration is ended with enter. The Stratos remains in the Hold state. You can now reinstall Stability check: the electrode and the temperature measured mV value is displayed...
  • Page 28 Start calibration with enter. ❏ If you would like to carry out a two-point calibra- enter tion, immerse the electrode in the second buffer solution. Now start the calibration again with en While the hour glass flashes, the ter. The calibration process runs again as for the electrode remains in the first buffer first buffer.
  • Page 29 Manual calibration MAN Note The stability check can be aborted with cal. However, the calibration with automatic calibration temp detection (if selected in Conf mode) accuracy will be compromised. For calibration with manual buffer specification, you Calibration with the first buffer is must enter the pH value of the buffer solution used in completed.
  • Page 30 Manual calibration MAN Note The stability check can be aborted with cal. However, the calibration with manual specification of calibration temp (if selected in Conf mode) accuracy will be compromised. For calibration with manual buffer specification, you Calibration with the first buffer is must enter the pH value of the buffer solution used in completed.
  • Page 31 Data entry of premeasured electrodes DAT At the end of calibration the slope and asymmetry potential (based on 25 °C) of the electrode are dis- You can directly enter the slope and asymmetry po- played. Press enter to end calibra- tential of an electrode.
  • Page 32 Adjustment of temperature probe Using the Y , " keys enter the de- Note This function should only be used by experts. Incorrectly set parame- termined temperature value in the ters may go unnoticed, but change main display. If you take over the the measuring properties.

  • Page 33: Measurement

    Measurement Measuring mode Hold state In the measuring mode the main display shows the The unit will enter the Hold state under the following configured measured variable (pH or mV) and the conditions: secondary display the temperature. For calibration: Mode code 1015 Mode code 1100 Cal info Mode code 2222...

  • Page 34: Diagnostics, Maintenance And Cleaning

    4 Diagnostics, Maintenance and Cleaning   Sensoface , Sensocheck   Sensoface provides information The worsening of a Sensoface cri- Note on the electrode state. The slope, terion leads to the devaluation  asymmetry potential and response of the Sensoface indicator.

  • Page 35: Error Messages

     Sensoface displays during measurement Display Problem Status Calibration Over 80 % of the calibration interval has already past. timer The calibration interval has been exceeded. Electrode Check the electrode and its connections (also see error messages 33 defect and 34). Error Messages When one of the following error messages is output, Error info...
  • Page 36 Error Display Problem Possible causes number (flashing) Err 03 Temperature probe - Incorrect temperature probe connected or configured - Open or short circuit in temperature probe - Measured temperature less than –20 °C or greater than +150 °C (NTC 30 kW: +130 °C) Err 21 Loop current - Measured value below configured current beginning...

  • Page 37: Calibration Error Messages

    Calibration Error Messages (only during calibration) Display Problem Possible causes Asymmetry poten- - Electrode “worn out” tial (zero) out of - Buffer solutions contaminated range 〈±60 mV) - Buffer does not belong to configured buffer set - Temperature probe not immersed in buffer solution (for automatic temperature compensation) - Wrong buffer temperature set (for manual temperature specifica- tion)

  • Page 38: Diagnostics Functions

    Diagnostics Functions Cal info Current source Pressing cal and entering mode code “0000” is go- To check the connected peripherals (e.g. limit ing to activate the cal info. Cal info shows the current switches, controllers), the loop current can be manu- calibration data for approx.

  • Page 39: Maintenance And Cleaning

    Maintenance and Cleaning Maintenance The Stratos 2201/2211 (X) pH contains no user re- pairable components. If problems persist even after reviewing section 4, please contact the factory. Cleaning To remove dust, dirt and spots, the external surfaces of the unit may be wiped with a damp, lint-free cloth. A mild household cleaner may also be used if neces- sary.

  • Page 40: Annex

    5 Annex Product Line Units Suggested Power Supplies Ref. No. Ref. No. Stratos 2201 pH 2201 pH Power supply / isolator for WG 20 A2 24 Vac/dc Stratos 2201 X pH for application 2201 X pH Repeater power supply for...

  • Page 41: Specifications

    Specifications Stratos 2201 pH / 2211 pH Stratos 2201 X pH / 2211 X pH pH/mV input pH/mV input EEx ia IIC Ranges pH value 0.00 to +14.00 Ranges pH value 0.00 to +14.00 mV value –1500 to +1500 mV mV value –1500 to +1500 mV...
  • Page 42 Stratos 2201 pH / 2211 pH Stratos 2201 X pH / 2211 X pH – Manual entry of individual – Manual entry of individual buffer values (MAN) buffer values (MAN) – Data entry for pre-measured – Data entry for pre-measured...
  • Page 43 Stratos 2201 pH / 2211 pH Stratos 2201 X pH / 2211 X pH   HART Com- digital communication via FSK modu- HART Com- digital communication via FSK modu- munication lation of loop current, munication lation of loop current,...

  • Page 44: Certificate Of Conformity

    EC-Type-Examination Certificate Specifications 44...
  • Page 45 Specifications 45...
  • Page 46 Specifications 46...
  • Page 47 Declaration of conformity Specifications 47...

  • Page 48: Buffer Charts

    Buffer Charts -00- Knick technical buffers -03- Ciba (94) buffers -01- (correspond to Mettler-Toledo technical buffers) Nominal values: 2.06, 4.00, 7.00, 10.00 °C °C 2.03 4.01 7.12 9.52 2.04 4.00 7.10 10.30 2.02 4.01 7.09 9.45 2.09 4.02 7.08 10.21 2.01...
  • Page 49 -05- NIST standard-buffers -07- WTW technical buffers °C °C ST 1 ST 2 ST 3 ST 5 4.010 6.984 9.464 2.03 4.01 7.12 10.65 4.004 6.951 9.395 2.02 4.01 7.09 10.52 4.000 6.923 9.332 2.01 4.00 7.06 10.39 3.999 6.900 9.276 2.00 4.00...

  • Page 50: Technical Terms

    Buffer set Contains selected buffer solutions which can be used for automatic conf Key for starting and ending configu- calibration with the Knick Cali- ration.  matic . The buffer set must be se- lected prior to calibration. Is indicated in % of the theoretical Electrode slope (59.2 mV/pH at 25 °C).
  • Page 51   Mode code Preset four-digit number to select Sensocheck Sensocheck continuously moni- certain modes. tors the glass and reference elec- trodes. Calibration with which only the elec- One-point  trode asymmetry potential (zero Sensoface provides information on the status calibration point) is taken into consideration.

  • Page 52: Index

    Index , 34 Calibration, 26 Connecting automatic handheld terminal, 11 22 mA signal for alarm, 23, 35 with automatic cal temp lines, 11 configuring, 25 detection, 26 Connecting cable, fixing, 11 with manual cal temp, 27 Calimatic Current source, 38 with automatic cal temp detection, 26 Alarm, 23...
  • Page 53 Messages, Sensoface, 34 Self–test automatic, 38 Mode code, 6 manual, 22, 38 HART, definition, 50 definition, 51 Sensocheck, 34 HART communication, 23 definition, 51 Mounting diagram, 9 on or off, 25 Hold mode, 33 mV measurement, 33 Sensoface, 22 definition, 51 diagnostics, 34 Input voltage, display, 38 messages, 34...
  • Page 54 Wiring ORP measurement, 19 pH measurement, 14 Zero point, definition, 51 Index...

This manual is also suitable for:

Stratos 2211 phStratos 2201 x phStratos 2211 x ph

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