Fuji Electric ZKME Instruction Manual
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Fuji Electric ZKME Instruction Manual

Fuji Electric ZKME Instruction Manual

Flameproof type zirconia oxygen analyzer converter
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  • Page 2: Preface

    PREFACE We are grateful for your purchase of Fuji Flameproof Type Zirconia Oxygen Analyzer converter (ZKME).  First read this instruction manual carefully until an adequate understanding is acquired, and then proceed to installation, operation and maintenance of the converter. Improper handling may result in accidents or injury.

  • Page 3: Safety Precautions

    SAFETY PRECAUTIONS First of all, read this “SAFETY PRECAUTIONS” carefully, and then use in the correct way.  Be sure to observe the instructions shown below, because they describe important information on safety. Those safety precautions are ranked in 3 levels, “DANGER”, “CAUTION” and “PROHIBITION”. If operation is incorrect, a dangerous situation may occur, resulting in DANGER death or serious injuries.
  • Page 4 Cautions on use  If unusual smell or sound has been produced, immediately stop the DANGER instrument. Any discharge produced may cause a fire.  Leaving the converter unused for a long time or restarting it after CAUTION disuse requires procedures different from normal operation or suspension procedures.

  • Page 5: Table Of Contents

    Contents PREFACE ................................i SAFETY PRECAUTIONS..........................ii CHECKING OF CONTENTS OF THE PACKAGE ................. vii STORAGE CONDITIONS ........................... vii 1. GENERAL ..............................1 1.1 Direct insertion type zirconia oxygen analyzer ..................1 1.2 Description of flameproof ........................1 2. OPERATING PARTS AND THEIR FUNCTIONS .................. 2 2.1 External appearance ..........................
  • Page 6 6.4.3 Checking the alarm information ....................... 30 6.5 Oxygen detector standard output voltage ....................31 7. CALIBRATION ............................32 7.1 Preparation .............................. 32 7.2 Manual calibration ..........................33 7.3 Auto calibration (option) ......................... 35 7.4 Remote calibration ..........................37 7.5 All calibration (option) ........................... 39 8.
  • Page 7 10.4.12 Maintenance mode setting ......................81 10.4.13 Password setting .......................... 82 10.4.14 PID auto tuning ........................... 83 10.5 Parameter menu ........................... 84 10.5.1 Current date and time setting ......................84 10.5.2 Contact input setting ........................85 10.5.3 Selection of alarm contact output ....................86 10.5.4 High limit setting of oxygen concentration ...................

  • Page 8: Checking Of Contents Of The Package

    CHECKING OF CONTENTS OF THE PACKAGE  Check that all of the following are contained in the delivered package. (1) Flameproof Type Zirconia Oxygen Analyzer converter main unit 1 unit (2) Accessories 1 set (Refer to the table below.) Table 1 Standard accessories Item Quantity Remarks...

  • Page 9: General

    1.1 Direct insertion type zirconia oxygen analyzer The direct insertion type zirconia oxygen analyzer consists of a direct insertion type zirconia detector (type ZFKE) and converter (type ZKME). The analyzer intended for the measurement of oxygen concentration in exhaust gas is used for combustion control.

  • Page 10: Operating Parts And Their Functions

    BLOW ZV HEATER DI1 DI2 DI3 ALARM MAIN- COM SV TENANCE Fuji Electric systems Co.,Ltd. Fuji Electric Instruments Co.,Ltd. Cable gland for flame proof ø9 - ø12 / Ground terminal M4 closeup plug (To order) For contact In/Out For communication...

  • Page 11: Terminal Block

    2.1.2 Terminal block EXTERNAL TERMINAL (TM1) /M3 sensor sensor thermocouple input input Exclusive cable sensor Analog Fault Blow contact heater power output contact output output output 4-20mA DC 250V AC/3A 250V AC/3A or 0-1V DC 30V DC/3A 30V DC/3A − −...

  • Page 12: Operating Parts And Their Functions

    POWER FAULT BLOW ZV HEATER DI1 DI2 DI3 ALARM MAIN- COM SV TENANCE Fuji Electric systems Co.,Ltd. Fuji Electric Instruments Co.,Ltd. MODE Name Explanation (1) Cover Glass cover. (2) Display/operation panel Displays or operates the concentration values or setting values.

  • Page 13: Internal Constitution

    2.2.2 Internal constitution (2) I/O Board (1) CPU board (6) Tube type fuse (F1) (5) Tube type fuse (F2) Oxygen Analyzer MODE ENTER POWER (7) Earth terminal (4) Power switch (3) Terminal block Name Explanation (1) CPU board The liquid crystal display and the memory circuit are installed. (2) I/O Board The input / output circuit and the power circuit are installed.

  • Page 14: Description On Display/Operation Panel

    2.3 Description on display/operation panel (1) Display unit (2) MODE key (3) ESC key (4) Digit key (5) UP key (6) ENTER key Name Explanation (1) Display unit Displays the concentration value and setting values. (2) MODE key Used to switch measurement display and mode display. (3) ESC key Used to return to the previous screen or exit the setting.

  • Page 15: Installation

    3. INSTALLATION DANGER  Although this unit is the explosion-proof type, do not use it in the place (zone 0) where explosive gases are always exist. Otherwise serious accidents such as explosion or fire may result. CAUTION  For installation, observe the rule on it given in the instruction manual and select a place where the weight of converter can be endured.

  • Page 16: How To Install The Converter

    Quantity Accessories of converter 4-M12 Converter Hexagon bolt (M12×50) Code Standard tightening torque 42 N ･ m Fuji Electric systems Co.,Ltd. Fuji Electric Instruments Co.,Ltd. Panel face 3.2.2 Selector valves and flowmeter (as specified) Unit: mm Mounting dimensions Mounting Name...

  • Page 17: Wiring And Piping

    4. WIRING AND PIPING CAUTION : Wiring work must be carried out with all power supplies turned off. Otherwise electric shock may result. : Be sure to ground the Converter. (Class D grounding) 4.1 Before wiring (1) Power voltage for the converter must conform to that for the detector to be connected. (2) Power supply wiring ...

  • Page 18: Wiring To Terminals

    4.2 Wiring to terminals 4.2.1 How to open the cover Loosen the hexagon socket head screw, and then rotate the cover to open. (Use the supplied hexagon wrench.) Oxygen Analyzer Hexagon socket head screw Oxygen Ana MODE ENTER POWER POWER FUSE T 0.5A HEATER FUSE T 2.5A...

  • Page 19: Wiring To Terminals

    4.3 Wiring to terminals 4.3.1 O sensor input / Input method of O sensor thermocouple Oxygen Analyzer Grounding terminal MODE ENTER Terminal block POWER for communication (TM2) Main ground wire External terminal block (TM1) Power cable Note 1: Fix the exclusive cable (O sensor input / O sensor thermocouple input) with the cable gland so that its sheath is 10 mm or less.

  • Page 20: Allocation Of The Terminal Block

    4.3.3 Allocation of the terminal block External terminal (TM1) / M3 screw sensor sensor input thermocouple input Exclusive (Note 6) (Note 2) cable Analog output Full contact Blow contact sensor 4-20mA DC output contact output heater power or 0-1V DC capacity 250V AC / 3A output...

  • Page 21: Wiring And Piping Diagram

    AC power supply Sample gas outlet Black Black White Blue Yellow Gas temperature. 600ºC max. Flow guide tube for high particulate Converter (ZKME) Sample gas outlet TM-1 sensor sensor sensor ZERO Fault contact Blow heater power input input thermocouple output...
  • Page 22 AC power supply Sample gas outlet Black Black White Blue Yellow Gas temperature. 600ºC max. Flow guide tube for high particulate Converter (ZKME) Sample gas outlet TM-1 sensor sensor sensor ZERO Fault contact Blow heater power input input thermocouple output...
  • Page 23 AC power supply Sample gas outlet Black Black White Blue Yellow Gas temperature. 600ºC max. Flow guide tube for high particulate Converter (ZKME) Sample gas outlet TM-1 sensor sensor sensor ZERO Fault contact Blow heater power input input thermocouple output...
  • Page 24 AC power supply Sample gas outlet Black Black White Blue Yellow Gas temperature. 600ºC max. Flow guide tube for high particulate Converter (ZKME) Sample gas outlet TM-1 sensor sensor sensor ZERO Fault contact Blow heater power input input thermocouple output...

  • Page 25: Handling Of Standard Gas (An Article On Separate Order)

    4.5 Handling of standard gas (An article on separate order) 4.5.1.1 Operation (1) Make sure the handle is closed on the high pressure gas container, then detach the cap nut. (2) Attach the high pressure gas container using the cap nut with packing of the pressure reduction valve. (3) Make sure the secondary pressure adjusting valve is turned fully counterclockwise (pressure not applied) and the outlet needle is turned fully clockwise (closed), then open the handle.

  • Page 26: Operation

    5. OPERATION 5.1 Preparation for operation Preparation can be performed after installation or on the bench. Note: If using the existing detector, refer to “11. HOW TO CHANGE THE SETTING”. (1) Wiring check (Refer to “4.3”, “4.4”) (2) Confirmation of the power supply specifications (Please check the main power supply and the power supply voltage specification of the detector.) (3) Power ON.

  • Page 27: Key Operation Flow Diagram (Outline)

    5.2 Key operation flow diagram (outline) Automatic transition Displayed only during warming-up. Displayed only if the optional function is used. Displayed only if the optional function is used. Displayed only if the optional function is used. Displayed only if the optional function is used.
  • Page 28 Displayed only if the optional function is used. Displayed only if the optional function is used. - 20 - INZ-TN1ZKME-E...
  • Page 29 - 21 - INZ-TN1ZKME-E...
  • Page 30 - 22 - INZ-TN1ZKME-E...

  • Page 31: Initial Parameter Value Table

    5.3 Initial parameter value table 5.3.1 Parameters related to measurement Reference Parameter setting Displayed message Range Initial value paragraph OUTPUT RANGE Display range Range1 or Range2 Range-1 10.1.1 RANGE1 RANGE2 Decimal point position DECIMAL POINT [00.00] Range1 [00.00] 10.1.2  ...

  • Page 32: Parameters Related To Blowdown (Displayed If The Option Is Provided)

    5.3.3 Parameters related to blowdown (displayed if the option is provided) Reference Parameter setting Displayed message Range Initial value paragraph (The automatic BLOW DOWN Automatic blowdown YES or NO blowdown 10.3.1 function function is invalid.) START DATE Date and time for starting Date and time in the 99/01/01 00:00 10.3.2...

  • Page 33: Other Parameters

    5.3.5 Other parameters Reference Parameter setting Displayed message Range Initial value paragraph DATE SET Date and time in the Current date and time (00/01/01 00:00) 10.5.1 calendar 00/00/01 00:00 DI1 to DI3 [NONE] [BLOW DOWN ON] [NONE] [HEATER OFF] DI 1 Contact inputs 1 to 3 [PROHIBIT CAL.] 10.5.2...
  • Page 34 Reference Parameter setting Displayed message Range Initial value paragraph MEAS. WAIT TIME Measurement recovery 0 to 300 sec. in 1 sec. 10 sec. 10.5.12 time steps 010 s KEY LOCK (Key lock Key lock function YES or NO 10.5.16 function is invalid.) STATION NO Station No.

  • Page 35: Operation Start And Stop

    6. OPERATION START AND STOP 6.1 Operation start After correct wiring and piping has been completed, turn the power switch in the converter ON, and measuring operation will begin. Note: 10 min. of warm-up time is necessary after power ON. Caution of before starting (1) Furnace operation should be started after an elapsed time of 10 minutes from the point of turning “ON”...

  • Page 36: Actions During Operation

    6.3 Actions during operation While the instrument is operating, the following displays can be changed. warming-up display *1: This screen is displayed only during warm-up process. Analog output during warming-up is output at 4 mA/0 V constantly. oxygen concentration value display Maximum and minimum values display Cell electromotive force...

  • Page 37: Check The Contents Of Display

    6.4 Check the contents of display The condition of the unit is displayed on the left of the LCD with three letters. The maximum of three items are displayed on one display. If there are four or more items, “▼” is displayed at the bottom of the screen. Scroll the screen with the key to display the fourth and subsequent items.

  • Page 38: Checking The Error Information

    6.4.2 Checking the error information Display State Remarks message Appears when control temperature of the heater exceeds Fault of heater temperature the set range. The heater control is stopped. Appears when disconnection is detected at the sensor, or Disconnection detection thermocouples for temperature control.

  • Page 39: Oxygen Detector Standard Output Voltage

    6.5 Oxygen detector standard output voltage concentration Output value concentration Output value concentration Output value (mV) (mV) (mV) 0.01 176.38 32.73 25.0 -4.475 123.15 10.0 16.71 30.0 -8.689 85.95 15.0 7.333 40.0 -15.34 69.93 20.0 0.683 50.0 -20.50 60.56 20.6 –...

  • Page 40: Calibration

    7. CALIBRATION In order to maintain good accuracy, proper calibration using standard gas is necessary. The following 4 methods of calibration are provided. (1) Manual calibration (“7.2”), (2) Auto calibration (option) (“7.3”), (3) Remote calibration (“7.4”), (4) All calibration (option) (“7.5”) 7.1 Preparation ...

  • Page 41: Manual Calibration

    7.2 Manual calibration Description  Span/zero is calibrated once by key operation.  Calibration must be made in the order of span and zero.  Perform calibration after a calibration gas is supplied to the detector and the output signal of the detector becomes stable.
  • Page 42 Press the key to perform manual zero calibration. MANUAL ZERO CAL. If supplying calibration gas manually (without the auto- START calibration function) The operator shall open the span gas valve manually and adjust the flow rate to 1.5 ± 0.5 L/min. In the case of unit with the auto calibration function, an external solenoid valve can be driven by using the contact output signal from the terminal block.

  • Page 43: Auto Calibration (Option)

    7.3 Auto calibration (option) Description  Calibration is performed at time intervals set in advance.  The solenoid valve is driven by contact signal to feed the standard gas for automatic calibration with span gas and zero gas.  “CAL” is displayed on the left of the measurement screen during automatic calibration. ...
  • Page 44 The screen on the right appears. SET AUTO CAL AUTO CALIBRATION Press the key to display the screen on the right and press SET AUTO CAL key. START DATE The date and time for starting automatic calibration screen appears. Use the key to set the auto calibration starting START DATE date and time.

  • Page 45: Remote Calibration

    7.4 Remote calibration You can perform all calibration by the contact input of the external terminal block. To perform remote calibration, install piping and wiring for the standard gas cylinder and the solenoid valve according to Section 4. (1) Set one of the contact inputs DI 1 to 3 to “Remote calibration” in accordance with the following operation procedure.
  • Page 46 Press the key. DI 1 REMOTE CAL. The screen on the right appears. DIGITAL INPUT Press the key several times and return to the measurement DI 1 screen. Close the contact set to the “REMOTE CAL.” 12.34 Remote calibration is performed. Vol% How to cancel ...

  • Page 47: All Calibration (Option)

    7.5 All calibration (option) Description  Perform sensor maintenance [sensor check (setting), sensor recovery (setting)], span and zero calibration once for each sequentially by key operation.  Actuate the solenoid valve attached to the exterior by the contact signal from the terminal block and supply standard gases sequentially.

  • Page 48: Blowdown (Option)

    8. BLOWDOWN (OPTION) In order to prevent the flow guide tube from clogging with dust contained in gas being measured, dust deposits in the flow guide tube is removed by blowing compressed air such as instrumentation air, etc. Use the blowdown function by one of the following three methods. ...

  • Page 49: Automatic Blowdown

    8.3 Automatic blowdown Description  Blowdown operation is performed at time intervals set in advance.  Using contact signal from the terminal block, drive the solenoid valve and remove dust by blowing instrumentation air, etc. into the flow guide tube with blowdown nozzle. ...
  • Page 50 Use the key to set the auto blowdown starting START DATE date and time. 08/02/25 13:00 (Set the date and time of the future.) Press the key to set the value. Press the key. START DATE 08/02/25 13:00 The screen on the right appears. SET AUTO BLOW START DATE (10)

  • Page 51: Remote Blowdown

    8.4 Remote blowdown You can perform blowdown by the contact input of the external terminal block. To perform remote blowdown, install piping and wiring for the supply air and the solenoid valve according to Section 4. (1) Set one of the contact inputs DI 1 to 3 to “Blowdown ON” in accordance with the following operation procedure.
  • Page 52 Press the key. DI 1 BLOW DOWN ON The screen on the right appears. DIGITAL INPUT Press the key several times and return to the measurement DI 1 screen. Close the contact set to the “Blowdown ON.” 12.34 Blowdown is performed. Vol% How to cancel ...

  • Page 53: Maintenance And Check

    9. MAINTENANCE AND CHECK 9.1 Checking Please regularly maintenance, check, and use it always in good condition. Check and remedy the following items especially. Perform maintenance and check once every year or 2, or at time of furnace check. Recommended interval, method of checking, Items for check remedy for abnormalities, etc.

  • Page 54: Replacement Of Fuse

    9.4 Replacement of fuse If a fuse blows, turn off the power switch, and replace the fuse after investigating the cause. Open the front door and you can see the two fuses. The upper fuse is for protection of the converter circuit and the lower one is for protection of the heater.

  • Page 55: Troubleshooting

    9.5 Troubleshooting Phenomena Probable causes Checking methods (normal value) Remedy No display Converter fuse blown out Check the fuse and supply voltage Replace fuse Check specification. Power supply voltage Indication does Filter and/or flow guide tube Visual check of filter and flow guide Clean or replace filter not change or clogged...
  • Page 56 Phenomena Probable causes Checking methods (normal value) Remedy  Replace the Disconnection Break of thermocouples Cable check of wiring detection error Break of sensor Wiring check defective parts. Wrong wiring  Correct wiring  Turn on/off the power supply. Range cannot “Range setting”...

  • Page 57: Setting And Operating Of Parameter

    10. SETTING AND OPERATING OF PARAMETER 10.1 Measured menu 10.1.1 Display range setting screen Description  You can set the display range of oxygen concentration value using this function.  Settable range: Select one of the following (1) “Range 1”: Displayed in the range set in the range setting 1. (2) “Range 2”: Displayed in the range set in the range setting 2.

  • Page 58: Decimal Point Position Setting Screen

    10.1.2 Decimal point position setting screen Description  You can set the decimal point position of full scale for oxygen concentration display using this function.  Settable range: Select one of the following. (1) “00.00”: Displayed with two-digit integer and two decimal places. (2) “0.000”: Displayed with one-digit integer and three decimal places.

  • Page 59: Full Scale Setting Screen

    10.1.3 Full scale setting screen Description  You can set the full scale value for display of oxygen concentration value using this function.  Settable range: If the decimal point position is set to “00.00”: 02.00 to 50.00 vol% If the decimal point position is set to “0.000”: 2.000 to 9.000 vol% Operation Setting the full scale value to 20.00% (Range-1) (example)

  • Page 60: Setting Screen For Calculation Time Of Maximum And Minimum Values Appears

    10.1.4 Setting screen for calculation time of maximum and minimum values appears Description  You can set the calculation time of maximum and minimum values of oxygen concentration value using this function.  Settable range: 0 to 240h Operation Setting the calculation time of maximum and minimum values to 24 hours (example) Displayed message Key operation...

  • Page 61: Calibration Menu

    10.2 Calibration menu 10.2.1 Automatic calibration setting (option) Description  You can set the automatic calibration to valid or invalid using this function.  If changing the automatic calibration setting from valid to invalid during automatic calibration or remote calibration, the calibration is forcibly canceled. Operation Setting the automatic calibration to valid (example)

  • Page 62: Date And Time For Starting Automatic Calibration (Option)

    10.2.2 Date and time for starting automatic calibration (option) Description  You can set the date and time for starting automatic calibration using this function. Automatic calibration is performed in a specified cycle from a specified date and time.  If it is invalid, the automatic calibration does not start at a specified date and time. ...

  • Page 63: Cycle Time Setting Of Automatic Calibration (Option)

    10.2.3 Cycle time setting of automatic calibration (option) Description  You can set the automatic calibration cycle using this function. The cycle starts from a specified date and time for automatic calibration.  Settable range: 00d 00h to 99d 23h (h: 00 to 23) Operation Setting the automatic calibration so that it is performed every four days (example)

  • Page 64: Performing All Calibration (Option)

    10.2.4 Performing all calibration (option) Description  You can perform all calibration on the screen using this function. Zero calibration is automatically performed after the span calibration.  If the execution of the treatment is set in “10.4.7 Sensor check setting for calibration (option)” and “10.4.8 Sensor recovery setting for calibration (option),”...

  • Page 65: Performing A Manual Span Calibration

    10.2.5 Performing a manual span calibration Description  Before starting span calibration, the operator shall supply span gas to the detector and check that the display is stabilized. Operation Performing span calibration on the screen (example) Displayed message Key operation Description (LCD) Display the screen on the right in accordance with the key...

  • Page 66: Performing A Manual Zero Calibration

    10.2.6 Performing a manual zero calibration Description  Before starting zero calibration, the operator shall supply zero gas to the detector and check that the display is stabilized. Operation Performing zero calibration on the screen (example) Displayed message Key operation Description (LCD) Display the screen on the right in accordance with the key...

  • Page 67: Calibration Gas Setting

    10.2.7 Calibration gas setting Description  Set calibration gas concentration (span/zero calibration gas concentrations). Use the calibration gas concentration 1 for the range 1, and the calibration gas concentration 2 for the range 2.  Use normal air (atmosphere) as a span calibration gas and set its concentration to 20.600% O ...

  • Page 68: Calibration Waiting Setting (Option)

    10.2.8 Calibration waiting setting (option) Description  Set the waiting time from supply of calibration gas to start of calibration. (Set the time so that the calibration gas becomes stable before the calibration.)  Settable range: 10 to 300sec. Operation Setting the wait time to start of calibration to 20 seconds (example) Displayed message...

  • Page 69: Calibration Error Clear

    10.2.9 Calibration error clear Description  You can clear the errors occurred during calibration using this function. If an error occurs during calibration, an error display (Er4, Er5) and abnormal contact output (close) continues until the next calibration is properly completed. ...

  • Page 70: Operation Setting Screen Of Calibration Range

    10.2.10 Operation setting screen of calibration range Description  During calibration, you can select single or common range for the calibration factor using this function.  Settable range: Select one of the following. (1) “Range interlock”: Performs calibration of the range that is currently displayed and sets the calibration factors of the other ranges to the same value as above.

  • Page 71: Blowdown Menu (Option)

    10.3 Blowdown menu (option) 10.3.1 Automatic blowdown setting Description  You can set the automatic blowdown to valid or invalid using this function.  If changing the automatic blowdown setting from valid to invalid during automatic blowdown, the blowdown is forcibly canceled. Operation Setting the automatic blowdown to valid (example)

  • Page 72: Date And Time Setting Of Automatic Blowdown

    10.3.2 Date and time setting of automatic blowdown Description  You can set the date and time for starting automatic blowdown using this function. Automatic blowdown is performed in a specified cycle from a specified date and time.  If it is invalid, automatic blowdown does not start at a specified date and time. ...

  • Page 73: Automatic Blowdown Cycle Setting

    10.3.3 Automatic blowdown cycle setting Description  You can set the automatic blowdown cycle using this function. The cycle starts from a specified date and time for automatic blowdown.  Settable range: 00h 00m to 99h 59m (m: 00 to 59) Operation Setting automatic blowdown cycle to 24 hours.

  • Page 74: Procedure For Setting Blowdown Time

    10.3.4 Procedure for setting blowdown time Description  You can set the blowdown time using this function (common with manual blow down).  Settable range: 0 to 999 sec. Operation Setting blowdown time to 30 seconds. (example) Displayed message Key operation Description (LCD) Display the screen on the right in accordance with the key...

  • Page 75: Perfoming Manual Blowdown

    10.3.5 Perfoming manual blowdown Description  You can perform blowdown on the screen using this function. Operation Performing blowdown on the screen (example) Displayed message Key operation Description (LCD) Display the screen on the right in accordance with the key BLOW DOWN MENU operation summary and press the key, the manual...

  • Page 76: Maintenance Menu

    10.4 Maintenance menu 10.4.1 Error log display Description  You can display an error log on the screen using this function.  A latest piece of error information is displayed first. The maximum of 12 pieces of error information are saved. Press the key to display the older pieces of error information.
  • Page 77 Error logs Display message Status Sensorline Error Sensor line disconnection of the zirconia oxygen sensor was detected. TC-line Error Temperature control line disconnection of the zirconia oxygen sensor was detected. Sub temp. Error Line disconnection of the thermocouple for combustion control was detected. Warm-up was not completed within the warm-up monitoring time (45 minutes).

  • Page 78: Clearing Error Logs

    10.4.2 Clearing error logs Description  You can clear all error logs saved using this function. Operation Clearing all error logs saved (example) Displayed message Key operation Description (LCD) Display the screen on the right in accordance with the key MAINTE MENU operation summary and press the key.

  • Page 79: Alarm Log Display

    10.4.3 Alarm log display Description  You can display alarm logs on the screen using this function.  A latest piece of alarm information is displayed first. The maximum of 12 pieces of alarm information are saved. Press the key to display the older pieces of alarm information. The latest piece of alarm information is displayed next to the oldest piece of alarm information.

  • Page 80: Clearing Alarm Logs

    10.4.4 Clearing alarm logs Description  You can clear all alarm logs using this function. Operation Clearing all alarm logs saved (example) Displayed message Key operation Description (LCD) Display the screen on the right in accordance with the key MAINTE MENU operation summary and press the key.

  • Page 81: Operation Log Display

    10.4.5 Operation log display Description  You can display operation logs on the screen using this function.  A latest piece of operation information is displayed first. The maximum of 12 pieces of operation information are saved. Press the key to display the older pieces of operation information. The latest piece of operation information is displayed next to the oldest piece of operation information.
  • Page 82 Operation logs Display message Status Auto cal. Automatic calibration was performed. All calibration All calibration was performed. Manual span cal. Manual span calibration was performed. Manual zero cal. Manual zero calibration was performed. M sensor check Manual sensor check was performed. M sensor recover Manual sensor recovery was performed.

  • Page 83: Clearing Operation Logs

    10.4.6 Clearing operation logs Description  You can clear all operation logs saved using this function. Operation Clearing all operation logs saved (example) Displayed message Description operation (LCD) Display the screen on the right in accordance with the key MAINTE MENU operation summary and press the key.

  • Page 84: Sensor Check Setting For Calibration (Option)

    10.4.7 Sensor check setting for calibration (option) Description  You can set if a sensor check is performed for calibration using this function. Operation Making a setting so that a sensor check is performed for calibration (example) Displayed message Key operation Description (LCD) Display the screen on the right in accordance with the key...

  • Page 85: Sensor Recovery Setting For Calibration (Option)

    10.4.8 Sensor recovery setting for calibration (option) Description  You can set if a sensor recovery is performed for calibration using this function. Note that the sensor recovery is performed only if it is determined to be required at the sensor check. ...

  • Page 86: Performing A Manual Sensor Check

    10.4.9 Performing a manual sensor check Description  Supply zero calibration gas to the detector in order to calculate the internal impedance R of the sensor.  If the internal impedance R is more than 100 Ω, perform the sensor recovery process. Operation Performing a sensor check on the screen (example)

  • Page 87: Performing Manual Sensor Recovery

    10.4.10 Performing manual sensor recovery Description  Apply an alternating current to the sensor if the internal impedance R > 100 Ω in a sensor diagnosis. If R ≤ 100 Ω, this process cannot be performed. Operation Performing sensor recovery on the screen (example) Displayed message Key operation...

  • Page 88: Cell Internal Resistance Display

    10.4.11 Cell internal resistance display Description  You can display the latest cell internal resistance of the zirconia oxygen sensor in a sensor check, using this function. Operation Displaying an internal resistance of the zirconia oxygen sensor (example) Displayed message Description operation (LCD)

  • Page 89: Maintenance Mode Setting

    10.4.12 Maintenance mode setting Description  You can set the maintenance mode to valid or invalid with this function.  If the maintenance mode is set to valid, the analog output signal is held at the set value (see “10.5.10 Hold value setting.”) and the contact output for maintenance of the external contact is on.

  • Page 90: Password Setting

    10.4.13 Password setting Description  You can set a password for switching the “Key lock function” valid /invalid, which is to prevent unauthorized people from making various setting or operating the unit manually (modification, etc.) Note: Refer to “Setting of key lock” Paragraph (“10.5.16”). ...

  • Page 91: Pid Auto Tuning

    10.4.14 PID auto tuning Description  Heater temperature of the detector is PID controlled. Optimize each value of P (proportion), I (integration) and D (derivation) under the environment that the unit is installed. Note: Each value of P, I and D has been set at shipping. If temperature is not controllable under that environment, execute PID auto tuning.

  • Page 92: Parameter Menu

    10.5 Parameter menu 10.5.1 Current date and time setting Description  You can set a current date and time for the unit using this function.  Settable range: date and time in the future in the calendar Operation Setting the current date and time to 13:00, 08/02/25 (example) Displayed message Key operation...

  • Page 93: Contact Input Setting

    10.5.2 Contact input setting Description  You can set the functions for the contact inputs 1 to 3 using this function.  Settable range: Select one of the following (1) [NONE] : Performs no treatment by contact input. (2) [BLOW DOWN ON] : Performs blowdown by contact input. (Switch OFF to ON to perform blowdown.) (3) [HEATER OFF] : Turn off the heater by contact input.

  • Page 94: Selection Of Alarm Contact Output

    10.5.3 Selection of alarm contact output Description  You can set the alarm conditions for alarm contact output using this function.  Settable range: Select one of the following. (1) [ALARM NONE] : Alarm contact output is not performed. (2) [HIGH ALARM] : Alarm contact output is performed when an high limit alarm occurs.

  • Page 95: High Limit Setting Of Oxygen Concentration

    10.5.4 High limit setting of oxygen concentration Description  You can set the high limit of oxygen concentration using this function. Use the oxygen concentration alarm 1 for the range 1, and the oxygen concentration alarm 2 for the range 2. ...

  • Page 96: Lower Limit Setting Of Oxygen Concentration

    10.5.5 Lower limit setting of oxygen concentration Description  You can set the lower limit of oxygen concentration using this function. Use the oxygen concentration alarm 1 for the range 1, and the oxygen concentration alarm 2 for the range 2. ...

  • Page 97: Hh Limit Setting Of Oxygen Concentration

    10.5.6 HH limit setting of oxygen concentration Description  You can set the HH limit of oxygen concentration using this function. Use the oxygen concentration alarm 1 for the range 1, and the oxygen concentration alarm 2 for the range 2. ...

  • Page 98: Ll Limit Setting Of Oxygen Concentration

    10.5.7 LL limit setting of oxygen concentration Description  You can set the LL limit of oxygen concentration using this function. Use the oxygen concentration alarm 1 for the range 1, and the oxygen concentration alarm 2 for the range 2. ...

  • Page 99: Hysteresis Setting

    10.5.8 Hysteresis Setting Description  You can set the hysteresis for alarm condition of oxygen concentration. Use the oxygen concentration alarm 1 for the range 1, and the oxygen concentration alarm 2 for the range 2. Perform the setting using the percentage (%) of the range compared to the full scale. ...
  • Page 100 Hysteresis : If the value fluctuates around the condition value, there is a possibility that alarms occur frequently. When determining alarms, set a hysteresis width for the condition in order to prevent chattering. For alarm check, set the percentage (%) of the range compared to the full scale as hysteresis width (see the figure below).

  • Page 101: Hold Treatment Setting (Maintenance Hold)

    10.5.9 Hold treatment setting (maintenance hold) Description  You can set if the analog output hold function is valid or invalid using this function.  If the analog output hold function is valid, the value set for the analog output (see “10.5.10 Hold value setting (maintenance hold)”) is held at the value set for analog output when the following treatment is performed.

  • Page 102: Hold Value Setting (Maintenance Hold)

    10.5.10 Hold value setting (maintenance hold) Description  Using this function, you can set (select) the output value of analog output signal when the analog output hold function (maintenance hold) is enabled.  If the maintenance mode is set to “Valid,” analog output signal is held at the value set in this procedure.

  • Page 103: Setting Of Hold Setting Value (Maintenance Hold)

    10.5.11 Setting of hold setting value (maintenance hold) Description  Using this function, you can set the output value of analog output signal to an arbitrary value when the analog output hold function (maintenance hold) is enabled. This function is to set the output value of an analog output at a percentage (%) of the full-scale value, when “setting value”...

  • Page 104: Setting Of Measurement Recovery Time (Maintenance Hold)

    10.5.12 Setting of measurement recovery time (maintenance hold) Description  This function is to set the recovery time (hold of extension) from the analog output hold function (maintenance hold).  Settable range: 0 to 300 sec. Operation Setting the time for extension of hold to “10 seconds” (example) Displayed message Key operation...

  • Page 105: Hold Treatment Setting (Error Hold)

    10.5.13 Hold treatment setting (error hold) Description  Using this function, you can set whether the analog output hold function is valid or invalid when an error occurs.  If the analog output hold function (error hold) is set to valid, analog output signal is held at the set value (see “10.5.14 Hold value setting (error hold)”) if an error occurs.

  • Page 106: Hold Value Setting (Error Hold)

    10.5.14 Hold value setting (error hold) Description  Using this function, you can set (select) the output value of analog output signal when the analog output hold function (error hold) is enabled.  If the maintenance mode is set to “Valid,” analog output signal is held at the value set in this procedure.

  • Page 107: Setting Of Hold Setting Value (Error Hold)

    10.5.15 Setting of hold setting value (error hold) Description  Using this function, you can set the output value of analog output signal to an arbitrary value when the analog output hold function (error hold) is enabled.  This function is enabled if “Setting value” is set at “10.5.14 Hold value setting (error hold).” ...

  • Page 108: Setting Of Key Lock

    10.5.16 Setting of key lock Description  Authorized person can set if the key lock is valid or invalid using this function. You need a “password” to make a setting if the key lock is valid or invalid. Note: Refer to “Password setting” (Paragraph “10.4.13”). ...

  • Page 109: Station Number Setting

    10.5.17 Station number setting Description  You can set the station number of the unit for MODBUS communication using this function.  Settable range: 0 to 99 Operation Setting the station number to 01 (example) Displayed message Key operation Description (LCD) Display the screen on the right in accordance with the key PARAMETER MENU...

  • Page 110: Adjustment Screen For Analog Output 0

    10.5.18 Adjustment screen for analog output 0% Description  You can adjust the analog output 0% using this function. Operation Adjusting the analog output 0% (4 mA) (example) Displayed message Key operation Description (LCD) Connect the ammeter to the analog output terminals (5) – (6). Display the screen on the right in accordance with the key PARAMETER MENU operation summary and press the...

  • Page 111: Adjustment Screen For Analog Output 100

    10.5.19 Adjustment screen for analog output 100% Description  You can adjust the analog output 100% using this function. Operation Adjusting the analog output 100% (20 mA) (example) Displayed message Key operation Description (LCD) Connect the ammeter to the analog output terminals (5) – (6). Display the screen on the right in accordance with the key PARAMETER MENU operation summary and press the...

  • Page 112: Fuel Coefficient Setting (Option)

    10.5.20 Fuel coefficient setting (option) Description  You can set the fuel coefficient [k], which is for calculation of combustion efficiency, using this function.  Settable range ： 0.00 to 1.99 Operation Setting the fuel coefficient [k] to 0.73. (example) Displayed message Key operation Description...

  • Page 113: Factory Menu

    10.6 Factory menu 10.6.1 Password setting screen Description  You can input the password for authorization authentication in this screen in order to execute the factory setting menu. Customers cannot execute the factory setting menu. - 105 - INZ-TN1ZKME-E...

  • Page 114: How To Change The Setting

    11. HOW TO CHANGE THE SETTING 11.1 How to change the setting of converter ZKM depending on detector type You do not need to change the setting of the converter for ZFK2 (thermocouple R). The detectors for ZFK5 and thermocouple K cannot be used. If you need to change the setting, please contact our service representatives.

  • Page 115: Specifications

    12. SPECIFICATIONS 12.1 Specifications - 107 - INZ-TN1ZKME-E...
  • Page 116 - 108 - INZ-TN1ZKME-E...

  • Page 117: Code Symbols

    12.2 Code symbols <Detector> <Converter> < Exclusive-special cable > <Replacement Detector element> Power supply Code symbols 100 to 120V AC ZFK8YY15-0Y0YY-0YY 200 to 240V AC ZFK8YY35-0Y0YY-0YY - 109 - INZ-TN1ZKME-E...

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