Instruction Manual QUICK GUIDE • Wiring Diagram Page 3-2 • Programming the Display Page 5-13 • Calibration Chapter 6 • Troubleshooting Chapter 7 Model 14 Dissolved Oxygen Transmitter 19 Thomas, Irvine, California 92618 USA Call Toll-Free: 877.246.7900 (USA & Canada) Phone: 949.452.1112 Fax: 949.452.1114 E-Mail: sales@broadleytech.
Model 14 Oxygen Analyzer Table of Contents Chapter 1 : Introduction ..........................................................................................................1-1 1.1 Introduction.............................................................................................................................1-1 1.2 Principles of Operation............................................................................................................1-1 1.3 Main Characteristics ........................
Model 14 Oxygen Analyzer Table of Contents (Continued) Chapter 5 : Programming the Analyzer (Continued) ...............................................................5-1 5.1.4 SERVICE Menu .....................................................................................................5-11 5.1.4.1 AVERAGE Menu .....................................................................................5-12 5.1.4.2 DISPLAY Menu .................................................................................
Model 14 Oxygen Analyzer Chapter 1: Introduction 1.1 Introduction The Model 14 Dissolved Oxygen Analyzer is a singlechannel analyzer for the measurement of dissolved oxygen in fermentation vessels and bioreactors, as well as in municipal applications. 1.2 Principle of Operation The measurement of dissolved oxygen is based on the well-known Clark cell principle. An oxygen-permeable membrane isolates the electrodes from the sample, thus eliminating the need for sample conditioning.
Model 14 Oxygen Analyzer 1.3 Main Characteristics ■ Range: 0 - 299.99% saturation; 0 - 29.99 ppm ■ Calibration in the air ■ Temperature compensation ■ Programmable alarm levels, outputs on relays ■ 4-20 mA, 0-20 mA analog outputs (standard) ■ Wall- , panel- and pipe mounting 1.
Model 14 Oxygen Analyzer Transmitter Display Units Calibration Analog Outputs Temperature Compensation RS485 (option) Transmitter Protection Error Reports Display in concentration units or % saturation Display of the direct cell current in nA Display of the sample temperature in °C/°F Programming via menus nA, ppm-mg/l, °C, °F, % saturation Electrical zero, chemical zero, slope calibration in the air, slope process calibration by comparison with a laboratory measurement 2 x 0/4 - 20 mA isolated from inp
Model 14 Oxygen Analyzer 1.5 Dimensions (Dimensions are in mm and inches) 144 mm 5.669" 24 mm 0.945" 1-4 Esc 28 mm 1.102" 2 Pg13 Enter 73 mm 2.874" 144 mm 5.669" 117 mm 4.606" 24 mm 0.936" 33.5 mm 1.
Model 14 Oxygen Analyzer Chapter 2: Description of the Analyzer 2.1 Transmitter 2.1.1 Presentation of the Transmitter The electronic unit amplifies the signal of the amperometric measuring cell and converts it into a direct digital readout in ppm, mg/l or % saturation.
Model 14 Oxygen Analyzer 2.1.2 Transmitter Schematic: REFERENCE 3 1 ANODE 2 U TEMP + 9 4 TEMP - CATHODE 5 AUX 6 7 1 : Programmable potentiostat 6 : Auxiliary input 2 : Polarization voltage amplifier 7 : Multiplexer 3 : Reversing switch for a 2 or 3 electrode 8 : A/D converter operation.
Model 14 Oxygen Analyzer 2.2 Application Fields Easy to use, install and program, this instrument is suitable for the following applications: - Fermentation / biotech - Municipal 2.3 Standard Mounting Options (using the red clamping bow) The transmitter housing conforms to norm DIN 43700. 8 mm (0.315”) max. Panel mounting Panel cut-out: 138 mm x 138 mm (5.4” x 5.4”) Front panel dimensions: 144 mm x 144 mm (5.7” x 5.
Model 14 Oxygen Analyzer Vertical pipe mounting Included hardware: 2 pan head screws, 4 mm x 60 mm long for red clamping bow 42 mm (1.653") max. 2-4 320 mm (12.598") max.
Model 14 Oxygen Analyzer Chapter 3: Installation of the Instrument 3.4 Location 3.1 Unpacking The analyzer should be unpacked with great care. The analyzer should be located in an accessible site. Watch for any loose accessories. The site should permit access for any inspection or maintenance operation. 3.2 Inspection 3.5 Power Connection The analyzer has been factory checked and tested prior to shipment.
Model 14 Oxygen Analyzer 3.8 Electrical Connections ■ Model 14 Do not switch the instrument on until completion of the installation. An aluminum armor plate inside the Model 14 gives a detailed description of the different terminals and their connections: ➯ The Relays and Main Power Supply terminals represented on the right side are accessible by removing the armor plate. Preamp. Supply + l1 S1 l2 Relays + S2 S3 / Sys.Alarm RX / TX + RX / TX Temp + Temp NC.
Model 14 Oxygen Analyzer 3.
Model 14 Oxygen Analyzer 3.10 Changing the Programming Language The default programming language is English. To change the language, follow the procedure below (example for French): MENU 100 CALIBRATION MAINTENANCE PROGRAMMING SERVICE % Sat 23.2°C Disp2 O2 Select Menu Enter SERVICE DISPLAY Enter CONC: ppm TEMP.: °C PRESSURE: mmHg LANGUAGE: GB Select Select DISPLAY CONC: ppm TEMP.: °C PRESSURE: mmHg LANGUAGE: F Select 3-4 AVERAGE DISPLAY CODE SOFT ISSUE DEFAULT VAL.
Model 14 Oxygen Analyzer 3.11 Programming the Power Supply Frequency The power supply frequency can be changed if necessary. This change occurs at the initial startup and after resetting the instrument. Follow the procedure below. MENU 100 % Sat 23.2°C Disp2 Enter CALIBRATION MAINTENANCE PROGRAMMING SERVICE O2 Menu Select Enter SERVICE CONFIGURATION FREQ: 50Hz Enter AVERAGE DISPLAY CODE SOFT ISSUE DEFAULT VAL.
Model 14 Oxygen Analyzer 3-6
Model 14 Oxygen Analyzer Chapter 4: Using the Instrument 4.
Model 14 Oxygen Analyzer 4.2 Displays 1 to 4 (live displays) 100% : Dissolved Oxygen measurement S1 S3 100 % Sat 23.2°C S2 Disp2 O2 Menu S1 S4 S3 100% 23.2°C 60.4 nA S2 S1 Display of the parameters measured : % Saturation Temperature Cell current S4 Disp3 S1: S2: S3: S4: 23.2°C : Temperature measurement O2 : Application S1...S4 : Alarm status (invisible if alarm is inactive) ppm >3 OK ppm >5 OK S3 S1...S4 : alarm status In this case relays S1 and S3 are active Disp4 I1: Conc 4.
Model 14 Oxygen Analyzer 4.3 Description of the Function Keys The function keys below will be highlighted at the bottom of the screen : Modify a parameter Select Scrolling in a list of menus Main Return to the main display Menu Display the main menu Disp2 Display screen 2 Disp3 Display screen 3 Disp4 Display screen 4 OK Validate the measure during calibration Yes Confirm a command - Decrease a value + Increase a value 4.
Model 14 Oxygen Analyzer 4.5 Enter or Modify a Value The highlighted digit can be modified with the key . Each digit can be validated by pressing ENTER. Repeat both operations for each digit. 03.89 ppm Increase the digit value 13.89 ppm Enter Validate the digit value 13.89 ppm 15.89 ppm 15.89 ppm Enter Enter 15.89 ppm 15.39 ppm Enter 15.39 ppm 15.37 ppm Enter 15.37 ppm To change the unit 15.
Model 14 Oxygen Analyzer Chapter 5: Programming the Transmitter 5.1 Main Menu S1 S3 100 % Sat 23.2°C S2 O2 Disp2 Menu S4 MENU CALIBRATION MAINTENANCE PROGRAMMING SERVICE Select CALIBRATION CONC. CALIB. TEMP. CALIB. MAINTENANCE 21.0 ppm PARAMETERS Select Page 5-2 23.2°C 60 nA Page 5-3 PROGRAMMING MEASURE ALARMS mA OUTPUTS RS485 Select Page 5-3 SERVICE AVERAGE DISPLAY CODE SOFT ISSUE DEFAULT VAL. ADJUST mA CONFIGURATION BROADLEY J.
Model 14 Oxygen Analyzer 5.1.1 CALIBRATION Menus ➯ Any calibration should follow the procedure below: 1. Configure the calibration characteristics in the “PROGRAMMING” menu. 2. Perform the calibration via the “EXECUTION” menu. m An access code may be required if one has been programmed, see page 5-14 for CODE Menu. The Temp. Calib. menu will not appear when instrument is set for manual temperature compensation. CALIBRATION Enter CONC. CALIB. TEMP. CALIB. PARAMETERS HISTORIC Enter Select CONC. CALIB.
Model 14 Oxygen Analyzer 5.1.2 MAINTENANCE Menu MAINTENANCE Used for any maintenance operation in the instrument; the transmitter continues to display the variables measured. The relay status is not modified. 21.0 ppm The relay status is not modified. The analog output value depends on the configuration in the mA OUTPUTS/SPECIAL PROG. /MAINTENANCE menu. 21.6°C 60.5 nA 5.1.3 PROGRAMMING Menu m An access code may be required. See page 5-14 for CODE menu.
Model 14 Oxygen Analyzer 5.1.3.1 MEASURE Menu PROGRAMMING Enter MEASURE P: 0760.0 mm Hg MEASURE ALARMS mA OUTPUTS RS485 TEMP. COMP. SALINITY COMP. Select Enter Select TEMP. COMP. TYPE: Manual TEMP.: 25.02˚C Select Temperature Compensation TYPE - Auto - Manual Choice of a temperature measurement with automatic compensation or manual compensation When manual temperature compensation is selected, the TEMP.CALIB. menu is no longer accessible! m TEMP. 5-4 - XX.
Model 14 Oxygen Analyzer 5.1.3.2 ALARMS Menu Relays S1 through S4 may be allocated to the limit, alarm system or timer functions. PROGRAMMING ALARMS ALARM 1 MEASURE ALARMS mA OUTPUTS RS485 Enter ALARM 2 ALARM 3 ALARM 4 Select Select ➯ LIMIT FUNCTION: The alarm relays are activated when the comparison between the measured value and the programmed limits meets the alarm function condition (up or down).
Model 14 Oxygen Analyzer ➯ SYSTEM ALARM FUNCTION: Relays S3 and S4 may be used as a fault indicater. To control the faults traced by the analyzer, connect the specific relay to an external alarm system. The relay is activated as soon as a default appears. In the case of a manual acknowledgment, the relay remains activated even if the default disappears. Press ENTER to deactivate the relay and the error message.
Model 14 Oxygen Analyzer ➯ TIMER FUNCTION: Relays S3 and S4 may be programmed to a timer function. Timer Function ALARM 4 MODE: Timer INTERV: 1440mm IMPUL. Nb.: 5 Ton: 005s Toff: 003s TmA: 05mn MODE -No -Limit -Timer The Alarm 4 may be a limit (see parameters above) or a timer function INTERV XXXXmn Interval between 2 active cycles (in minutes) IMPUL.
Model 14 Oxygen Analyzer 5.1.3.3 mA OUTPUTS Menu The analog output signals allow the transmission of the measurements from the analyzer to any external control system. It is highly recommended to use shielded cables for the output signals. This shielding should be connected to the earth terminal on the armor plate. PROGRAMMING MEASURE ALARMS mA OUTPUTS RS485 mA OUTPUTS Enter OUTPUT 1 OUTPUT 2 SPECIAL PROG. TEST Enter Enter Select Select SPECIAL PROG. OUTPUTS 1/2 MAINTENANCE CALIBRATION SYST.
Model 14 Oxygen Analyzer Output 1/2 AFFECT TYPE MODE LOWER MIDD. UPPER - Conc. - nA - ˚C/˚F - 0/20 - 4/20 - Lin - Dual XXXX XXXX XXXX To set the choice of analog output to the concentration or temperature measurement Choice of the analog output type Choice between a linear or dual range (see drawing below) Bottom scale value Mid-scale value (only in dual mode) Top of the scale value SPECIAL PROG. Special Prog.
Model 14 Oxygen Analyzer 5.1.3.4 RS485 Menu (optional) If the RS485 optional board is installed, program the parameters of the menu below. The optional RS485 board enables a connection between the analyzer and a digital communication system. The communication protocol is JBUS/MODBUS. Call Broadley Technologies for more information.
Model 14 Oxygen Analyzer 5.1.4 SERVICE Menu CALIBRATION AVERAGE DISPLAY CODE SOFT ISSUE DEFAULT VAL. ADJUST mA CONFIGURATION BROADLEY J. Select AVERAGE DEFAULT VAL. AVERAGE: 9 Loading TEST SOFT ISSUE m Default Values? Select Yes Model 1400 DO 1.00 DISPLAY ADJUST mA CONC: ppm TEMP: ˚C PRESSURE: mmHg LANGUAGE: GB OUTPUT 1 Select Select CODE CALIF. : 0000 PROG.
Model 14 Oxygen Analyzer 5.1.4.1 AVERAGE Menu m An access code may be required. See page 5-14 for CODE menu. Program a moving average on the concentration measurement. The measurement cycle lasts 4 seconds. SERVICE Enter AVERAGE DISPLAY CODE SOFT ISSUE DEFAULT VAL. ADJUST mA CONFIGURATION BROADLEY J. Select AVERAGE AVERAGE: 9 TEST TEST Enter Average 3.46 ppm Real 3.
Model 14 Oxygen Analyzer 5.1.4.2 DISPLAY Menu DISPLAY SERVICE AVERAGE DISPLAY CODE SOFT ISSUE DEFAULT VAL. ADJUST mA CONFIGURATION BROADLEY J. Enter CONC: ppm TEMP: ˚C PRESSURE: mmHg LANGUAGE: GB Select Select Display CONC TEMP.
Model 14 Oxygen Analyzer 5.1.4.3 CODE Menu Protection codes may be programmed for access to the PROGRAMMING, CALIBRATION, and SERVICE menus. This code is deactivated by entering 0000. CODE SERVICE AVERAGE DISPLAY CODE SOFT ISSUE DEFAULT VAL. ADJUST mA CONFIGURATION BROADLEY J. CALIB. Enter PROG. : 0000 : 0000 SERVICE: 0000 Select Select Code CALIB. PROG.
Model 14 Oxygen Analyzer 5.1.4.4 SOFT ISSUE Menu This menu displays the software version installed in the instrument. SERVICE AVERAGE DISPLAY CODE SOFT ISSUE DEFAULT VAL. ADJUST mA CONFIGURATION BROADLEY J. SOFT ISSUE Enter Model 1400 DO 1.00 Select 5.1.4.5 DEFAULT Menu SERVICE AVERAGE DISPLAY CODE SOFT ISSUE DEFAULT VAL. ADJUST mA CONFIGURATION BROADLEY J. Select m DEFAULT VAL. Loading Enter m Default Values? Yes Pressing YES will load the default values.
Model 14 Oxygen Analyzer 5.1.4.6 mA ADJUST Menu The analog output signals are factory-adjusted (upper limit: 20mA). However, if the upper limit of one of the outputs, drifts, the span value can be adjusted with the mA ADJUST menu. Connect an ampere meter in series to the analog output terminals. Adjust the value until the ampere meter displays 20mA. Note: The value displayed does not correspond to an actual mA value. AVERAGE DISPLAY CODE SOFT ISSUE DEFAULT VAL. ADJUST mA CONFIGURATION BROADLEY J.
Model 14 Oxygen Analyzer Chapter 6: Calibrating the Instrument NOTE See Chapter 5 for programming commands. REMARK Any result (calibration or measurement) is always brought back to the reference temperature (25˚C, 77˚F). If the sample temperature is different from the reference temperature, manual or automatic temperature compensation must be used. 6.1. Calibrating the Temperature Sensor The temperature sensor is located in the dissolved oxygen measurement probe.
Model 14 Oxygen Analyzer 6.1.1. Automatic Temperature Compensation The sensor continuously measures the sample temperature. The concentration values are automatically calculated using the algorithms programmed in the transmitter. 1. Programming PROGRAMMING Enter MEASURE ALARMS mA OUTPUTS RS485 MEASURE Choose automatic temperature compensation. ? P: 0760.0 mm Hg TEMP. COMP SALINITY COMP. Select Enter Select TEMP. COMP. TYPE: Auto. Select 2. Execution TEMP. CALIB.
Model 14 Oxygen Analyzer 6.1.2. Manual Temperature Compensation Manual temperature compensation should be used only when the sample temperature is constant. 1. Programming PROGRAMMING Enter Select manual temperature compensation. TEMP. COMP MEASURE ALARMS mA OUTPUTS RS485 Select MEASURE Enter Select TEMP. COMP. TYPE: Manual Select Enter TEMP. COMP. TYPE: Manual Enter the sample temperature. TEMP.: 25.0˚ Select 2. Execution Not applicable when manual temperature compensation is selected.
Model 14 Oxygen Analyzer 6.2. Measurement Calibration The slope calibration can be done in air or water. The zero can be set with an electronic zero or a chemical zero. A chemical zero uses Nitrogen gas or oxygen-free solution. 6.2.1. Slope Calibration in Air with an Electronic Zero Temperature compensation must be set to “auto.” 1. Programming ZERO : Select an electrical zero. The electrical zero is carried out automatically by the transmitter at regular intervals. Select slope in air.
Model 14 Oxygen Analyzer 6.2.2. Slope Calibration in Air with a Chemical Zero 1. Programming CALIBRATION CONC. CALIB. Enter ZERO : Select a chemical zero Select slope in air CONC. CALIB. TEMP. CALIB. ZERO PARAMETERS SLOPE Select Enter Enter Select ZERO CALIB. SLOPE CALIB. PROGRAMMING PROGRAMMING EXECUTION Enter Select Select ZERO CALIB. Enter SLOPE CALIB. TYPE: Chemical TYPE: Air SLOPE : Enter the atmospheric pressure in mmHg Enter the value of the ambient temperature PO: 760.
Model 14 Oxygen Analyzer 6.2.3. Slope Calibration in Process with an Electronic Zero 1. Programming CALIBRATION Enter CONC. CALIB. ZERO : Select the electrical zero. The electrical zero is carried out automatically by the transmitter at a regular frequency. Select process slope. CONC. CALIB. TEMP. CALIB. ZERO PARAMETERS SLOPE Enter Enter Select Select ZERO CALIB. PROGRAMMING SLOPE CALIB. PROGRAMMING EXECUTION Enter Select Select ZERO CALIB. TYPE: ElectAuto. Select Enter SLOPE CALIB.
Model 14 Oxygen Analyzer 6.2.4. Slope Calibration in Process with a Chemical Zero 1. Programming CALIBRATION Enter CONC. CALIB. CONC. CALIB. TEMP. CALIB. ZERO : Select chemical zero. Select slope process. ZERO PARAMETERS SLOPE Enter Enter Select Select ZERO CALIB. SLOPE CALIB. PROGRAMMING PROGRAMMING EXECUTION Enter Select Select ZERO CALIB. Enter SLOPE CALIB. TYPE: ElectAuto. Select TYPE: Process Select 2. Execution ZERO : Place the sensor in 99.999% Nitrogen gas. ZERO CALIB.
Model 14 Oxygen Analyzer 6-8
Model 14 Oxygen Analyzer Chapter 7: Start-up and Troubleshooting 7.1 Start-up 7.1.1 Probe Connection PROBLEM: No significant current increase when the probe is in the air during calibration See page 3-3 for the terminal connection. Causes and solutions: 7.1.2 Main Power Supply Connection A) The membrane has been torn. ➯ Change the membrane. Remove aluminum plate inside the Model 14. Power should be connected to the “Mains” terminal indicated B) Cable or connections have been damaged. on the plate.
Model 14 Oxygen Analyzer PROBLEM: Inaccurate readings Other problems Causes and solutions: Causes and solutions: A) The membrane permeability has changed (coating). ➯ Calibrate the analyzer and check if the concentration is back to normal. A) The probe current is zero. ➯ There is no electrolyte in the probe (leak). There may be a short-circuit in the connection. B) Electrolyte contamination. ➯ Inspect probe components. Change the electrolyte. B) The probe current is negative.
Model 14 Oxygen Analyzer 7.3 Troubleshooting the Electronics WARNING! Never attempt to service before disconnecting the instrument from the main power line.
Model 14 Oxygen Analyzer MALFUNCTION Temperature measurement is not correct Display reading static; cannot be changed in any way POSSIBLE CAUSE REMEDIES Interferences Are there any sources of potential interference, chemical, external, temperature, pressure, etc.? Cable shield is not connected Check and connect Defective CPU board If problem persists, call the Service Technician Probe connected wrong Check probe connection Temperature not calibrated Calibrate for temperature.
Model 14 Oxygen Analyzer Chapter 8: Error Messages During failure, the measurement is replaced by dashes “ - - -.” Error Message Description Error messages during a measurement - - CONCENTRATION TOO HIGH - - STAND-BY 1.99 ppm The concentration value exceeds the limits. Check the current value and the calibration parameters. Electrode protection If the measuring range displays “concentration too high” for more than 2 minutes, the error message “STAND-BY” appears.
Model 14 Oxygen Analyzer The current value exceeds the limits. Confirm there is no short-circuit in the measuring line. Check the polarization voltage. Error messages during calibration 21.6 ˚C ∆T OUT OF LIMITS 8-2 The temperature difference between the calibration temperature and the sensor’s theoretical exceeds the limit programmed.
Model 14 Oxygen Analyzer Appendix 1: Pressure Conversion Table hPa or mbars mm Hg psi inches Hg 690 mm H2O 9503.60 13.34 27.16 inches H2O 374.16 920.00 925.00 693.8 9555.25 13.42 27.31 376.19 930.00 697.5 9606.90 13.49 27.46 378.22 935.00 701.3 9658.55 13.56 27.61 380.26 940.00 705 9710.20 13.63 27.76 382.29 945.00 708.8 9761.85 13.71 27.90 384.32 950.00 712.5 9813.50 13.78 28.05 386.36 955.00 716.3 9865.15 13.85 28.20 388.39 960.00 720 9916.80 13.
Model 14 Oxygen Analyzer Appendix 2: Temperature Conversion Table • Conversion from ˚C into ˚F : • Conversion from ˚C into ˚K : A-2 ˚F = 1.8 * ˚C + 32 ˚K = ˚C + 273.15 ˚C ˚F ˚K ˚C ˚F ˚K 0 32 273.15 23 73.4 296.15 1 33.8 274.15 24 75.2 297.15 2 35.6 275.15 25 77 298.15 3 37.4 276.15 26 78.8 299.15 4 39.2 277.15 27 80.6 300.15 5 41 278.15 28 82.4 301.15 6 42.8 279.15 29 84.2 302.15 7 44.6 280.15 30 86 303.15 8 46.4 281.15 31 87.8 304.15 9 48.
Model 14 Oxygen Analyzer Appendix 3: Default Values Calibration CONC. CALIB. ZERO CALIB. Type : Elec. Auto SLOPE Type : Air PO: 0760.0 mm Hg PARAMETERS DATE :01/01/98 ZERO: 0.00 nA S: 3.000 nA/ppm ∆T: 0.0˚C Programming MEASURE TEMP. COMP. TYPE : Auto ALARMS S1/S2/S4 AFFECT. : Conc. DIR. : Down LIMIT: 0.000 ppb DELAY : 000 s HYST. : 00% RELAY : NO OUTPUT 1 AFFECT. : Conc. TYPE : 4-20 MODE : Lin. LOW : 0.000 ppb UP : 01.00 ppm MAINTENANCE MODE : Last SYST. ALARM MODE : Last ALARMS ALARM S3 AFFECT.
Model 14 Oxygen Analyzer Service AVERAGE AVERAGE : 1 DISPLAY DISPLAY CONC. : ppb/ppm TEMP. : °C PRESSURE : mmHg LANGUAGE : GB CODE CODE CALIB. : 0000 PROG. : 0000 SERVICE : 0000 CONFIGURATION CONFIGURATION FREQ.
Model 14 Oxygen Analyzer Broadley Technologies Corporation 19 Thomas Irvine, California 92618 USA Corporate Headquarters: Toll-Free: 877.246.7900 Tel: 949.452.1112 Fax: 949.452.1114 E-Mail: sales@biotechcatalog.
