Fuji Electric ZKM Instruction Manual
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Fuji Electric ZKM Instruction Manual

Zirconia oxygen analyzer converter
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Instruction Manual
ZIRCONIA OXYGEN
ANALYZER CONVERTER
Type: ZKM
INZ-TN1ZKMe-E

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Summary of Contents for Fuji Electric ZKM

  • Page 1 Instruction Manual ZIRCONIA OXYGEN ANALYZER CONVERTER Type: ZKM INZ-TN1ZKMe-E...

  • Page 2: Preface

    PREFACE We are grateful for your purchase of Fuji Direct Insertion Type Zirconia Oxygen Analyzer Converter (ZKM). 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. Installation, transportation, wiring, use, maintenance of this product shall be carried out by suitably trained personnel. First-time users should operate the instrument under the supervision of a fully competent person in the operation.
  • Page 4 Cautions on wiring Be sure to turn off all the power before performing wiring. Otherwise CAUTION electric shock may result. Be sure to perform class D grounding work. Otherwise, electric shock or failure may result. Select a proper wiring material that satisfies the ratings of the instru- ment.
  • Page 5 - iv - INZ-TN1ZKM-E...

  • Page 6: Table Of Contents

    Contents PREFACE ................................i SAFETY PRECAUTIONS ..........................ii CHECKING OF CONTENTS OF THE PACKAGE ................viii STORAGE CONDITIONS.......................... viii 1. GENERAL ..............................1 1.1 Direct insertion type zirconia oxygen analyzer ..................1 2. OPERATING PARTS AND THEIR FUNCTIONS...................2 2.1 External appearance..........................2 2.1.1 Outline Drawing..........................2 2.1.2 Terminal block............................3 2.2 OPERATING PARTS AND THEIR FUNCTIONS..................4 2.2.1 External appearance ...........................4...
  • Page 7 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 8 10.5.22 Fuel coefficient setting (option) ....................106 10.6 Factory menu ............................107 10.6.1 Password setting screen........................107 11. HOW TO CHANGE THE SETTING....................108 11.1 How to change the setting of converter ZKM depending on detector type ........108 12. SPECIFICATIONS ..........................109 12.1 Specifications............................109 12.2 Code symbols............................111...

  • Page 9: 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) 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 10: 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 ZFK) and converter (type ZKM). The analyzer intended for the measurement of oxygen concentration in exhaust gas is used for combustion control.

  • Page 11: Operating Parts And Their Functions

    2. OPERATING PARTS AND THEIR FUNCTIONS 2.1 External appearance 2.1.1 Outline Drawing ZKM1 Mounting plate (option) Small case (IP66) Valve (option) U bolts M8 (option) Oxygen Analyzer MODE ENTER POWER Oxygen Analyzer Calibration gas outlet (for ø6 tube) Mounting for For contact Input/output 2B pipe Earth terminal (M4)

  • Page 12: Terminal Block

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

  • Page 13: Operating Parts And Their Functions

    2.2 OPERATING PARTS AND THEIR FUNCTIONS 2.2.1 External appearance ZKM1 ＜ IP66 ＞ Oxygen Analyzer MODE ENTER POWER Oxygen Analyzer ZKM2 ＜ IP67 ＞ MODE ENTER POWER Name Explanation (1) Door fixing screw Fixes the front door. (4-M5) (2) Display/operation panel Displays or operates the concentration value or setting values.

  • Page 14: Internal Constitution

    2.2.2 Internal constitution ZKM1 ＜ IP66 ＞ (1) CPU board (2) I/O board POWER FUSE T 250V T 0.5A Tube type fuse (F1) HEATER FUSE T 250V T 2.5A CAUTION Tube type fuse (F2) Power supply must be selected POWER the same voltage of detector.

  • Page 15: Description On Display/Operation Panel

    2.3 Description on display/operation panel (1) Display unit (3) ESC key (5) UP key (2) MODE key (4) Digit 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 16: Installation

    3. INSTALLATION DANGER This unit is not explosion-proof type. Do not use it in an atmosphere of explosive gases. 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 17: How To Install The Converter

    3.2 How to install the converter 3.2.1 Mounting on panel surface (ZKM1) Unit: mm Mounting dimensions Installation Name Quantity Accessories of converter 4-M8 Converter Pan head screw (M8×12) Spring washer (M8) Plain washer (M8) Code Standard tightening torque 12.5 [N ･ m] Panel face 3.2.2 Pipe mounting (ZKM1) Installation...

  • Page 18: Mounting On Panel Surface (Zkm2)

    3.2.3 Mounting on panel surface (ZKM2) Unit: mm Mounting dimensions Installation 4-M8 Name Quantity Converter Pan head screw (M8×12) Code Standard tightening torque 12.5 [N ･ m] Panel face 3.2.4 Pipe mounting (ZKM2) Installation Name Quantity Converter Hexagon nut (M8) Spring washer (M8) Plain washer (M8) U bolt (M8)

  • Page 19: 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 Use 1.25sq 600V vinyl insulated cable (JISC3307) or equivalent as power supply cable.

  • Page 20: Wiring To Terminals

    4.2 Wiring to terminals 4.2.1 O sensor input / Input method of O sensor thermocou- External terminal _POWER. (TM1) 0.5A HEATER. 2.5A POWER. ON FAULT BLOW HEATER 1 2 3 DI1 DI2 DI3 DICOM ALARM MAINTE COM SV Terminal block Earth terminal Main ground (Note 2)

  • Page 21: Allocation Of The Terminal Block

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

  • Page 22: Wiring And Piping Diagram

    Black (Max. 20m) White Blue Yellow Sample gas outlet Gas temperature. 600ºC max. Flow guide tube for high particulate Sample gas outlet Converter (ZKM) TM-1 Gas temperature. 600ºC max. ZERO FAULT BLOW O2 input Thermocouple Flow guide for high Calibrating...
  • Page 23 Black (Max. 20m) White Blue Yellow Sample gas outlet Gas temperature. 600ºC max. Flow guide tube for high particulate Sample gas outlet Converter (ZKM) TM-1 Gas temperature. 600ºC max. ZERO FAULT BLOW O2 input Thermocouple Flow guide for high Calibrating...
  • Page 24 4.3.1.3 Ejector system Flowmeter Reduction valve (ZBD) Ejector (ZTA) (unnecessary when supply air pressure Ejector (5 to 10L/min) is 200 to 300kPa ) Joint Supply air Power supply Copper pipe φ6/φ4mm Gas temperature. (not supplied) 1500ºC max. Heater temperature drop Alarm Solenoid valve Copper pipe...
  • Page 25 4.3.1.4 Ejector system (with valve) Flowmeter Reduction valve (ZBD) Ejector (ZTA) (unnecessary when supply air pressure Ejector (5 to 10L/min) is 200 to 300kPa ) Joint Supply air Power supply Copper pipe φ6/φ4mm Gas temperature. (not supplied) 1500ºC max. Heater temperature drop Alarm Solenoid valve Copper pipe...

  • Page 26: Handling Of Standard Gas (An Article On Separate Order)

    4.4 Handling of standard gas (An article on separate order) 4.4.1.1 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 ap- plied) and the outlet needle is turned fully clockwise (closed), then open the handle.

  • Page 27: 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 “4.2”, “4.3”) (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 28: 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 29 Displayed only if the optional function is used. Displayed only if the optional function is used. - 20 - INZ-TN1ZKM-E...
  • Page 30 - 21 - INZ-TN1ZKM-E...
  • Page 31 Displayed only if the optional function is used. - 22 - INZ-TN1ZKM-E...

  • Page 32: 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 [0.000] 00.00 Range2 Full scale...

  • Page 33: 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 BLOW DOWN Automatic blowdown (The automatic YES or NO 10.3.1 function blowdown func- tion is invalid.) START DATE Date and time for starting Date and time in the fu- 99/01/01 00:00 10.3.2...

  • Page 34: Other Parameters

    5.3.5 Other parameters Reference Parameter setting Displayed message Range Initial value paragraph DATE SET Date and time in the cal- Current date and time (00/01/01 00:00) 10.5.1 endar 00/00/01 00:00 DI1 to DI3 [NONE] [BLOW DOWN ON] [NONE] [HEATER OFF] DI 1 Contact inputs 1 to 3 [PROHIBIT CAL.]...
  • Page 35 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 function YES or NO (Key lock func- 10.5.16 tion is invalid.) CONTRAST Adjustment of brightness...

  • Page 36: 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 measur- ing 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 turn- ing ”ON”...

  • Page 37: 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 38: 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 39: 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 40: 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 41: 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 Check of piping and wiring Perform wiring and piping correctly referring to Item “4.3”.

  • Page 42: 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 de- tector becomes stable.
  • Page 43 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 exter- nal solenoid valve can be driven by using the contact output signal from the terminal block.

  • Page 44: 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. If the output signal hold is set, the output signal is held to the set value during calibration.
  • Page 45 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 ap- pears. Use the key to set the auto calibration starting START DATE...

  • Page 46: 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 op- eration procedure.
  • Page 47 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 Press the...

  • Page 48: All Calibration (Option)

    7.5 All calibration (option) Description Perform sensor maintenance [sensor check (setting), sensor recovery (setting)], span and zero calibra- tion 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 49: Blowdown (Option)

    8. BLOWDOWN (OPTION) In order to prevent the flow guide tube from clogging with dust contained in gas being measured, dust depos- its 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 50: 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. “BLW”...
  • Page 51 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 52: 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 opera- tion procedure.
  • Page 53 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 Press the...

  • Page 54: 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 55: 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 56: Troubleshooting

    9.5 Troubleshooting Phenomena Probable causes Checking methods (normal value) Remedy No display Converter fuse blown out Check the fuse and supply voltage speci- Replace fuse Check fication. 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 57 Phenomena Probable causes Checking methods (normal value) Remedy Disconnection Break of thermocouples Cable check of wiring Replace the defec- detection error Break of sensor Wiring check tive parts. Wrong wiring Correct wiring Turn on/off the power supply. Range cannot “Range setting” is set in the Check if “Range setting”...

  • Page 58: 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 59: 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 func- tion. 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 60: 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 61: Setting Screen For Calculation Time Of Maximum And Minimum Values Appears

    10.1.4 Setting screen for calculation time of maximum and min- imum 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 62: 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 re- mote calibration, the calibration is forcibly canceled. Operation Setting the automatic calibration to valid (example)

  • Page 63: 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. Settable range: date and time in the future in the calendar Operation Setting the automatic calibration so that it is performed from 13:00, 08/02/25...

  • Page 64: 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 65: 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 66: 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 op- CALIBRATION MENU...

  • Page 67: 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 op- CALIBRATION MENU...

  • Page 68: 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 Settable range: Span calibration gas 00.010 to 50.000 %O Zero calibration gas 00.010 to 25.000 %O Operation...

  • Page 69: 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 Key operation...

  • Page 70: 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. Clear the error display on the measurement screen and open the abnormal contact output.

  • Page 71: 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 func- tion. 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 72: 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 73: 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. Settable range: date and time in the future in the calendar Operation Setting the date and time for starting automatic blowdown to 13:00, 08/02/25...

  • Page 74: 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 75: 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 op- BLOW DOWN MENU...

  • Page 76: 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 op- BLOW DOWN MENU eration summary and press the key, the manual blowdown...

  • Page 77: 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 78 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 79: 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 op- MAINTE MENU eration summary and press the key.

  • Page 80: 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 81: 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 op- MAINTE MENU eration summary and press the key.

  • Page 82: 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 informa- tion.
  • Page 83 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 84: 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) Key opera- Displayed message Description tion (LCD) Display the screen on the right in accordance with the key op- MAINTE MENU eration summary and press the key.

  • Page 85: 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 op-...

  • Page 86: 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. This function is performed only if valid is selected in the sensor check setting for calibration.

  • Page 87: 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 88: 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 89: 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, us- ing this function. Operation Displaying an internal resistance of the zirconia oxygen sensor (example) Key opera- Displayed message Description tion...

  • Page 90: 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. The data portion of the measurement screen flickers.

  • Page 91: 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 unau- thorized people from making various setting or operating the unit manually (modification, etc.) Note: Refer to “Setting of key lock” Paragraph (“10.5.16”). When you set the “new password”...

  • Page 92: 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 93: 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 94: 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 95: 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 96: 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. Settable range: 0.001 to 55.000 vol% Operation Setting the high limit of oxygen concentration to “50.000 vol%”...

  • Page 97: 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. Settable range: 0.001 to 55.000 vol% Operation Setting the lower limit of oxygen concentration to “00.020 vol%”...

  • Page 98: 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. Settable range: 0.001 to 55.000 vol% Operation Setting the HH limit of oxygen concentration to “55.000 vol%”...

  • Page 99: 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. Settable range: 0.001 to 55.000 vol% Operation Setting the Low-Low limit of oxygen concentration to “00.010 vol%”...

  • Page 100: 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. Settable range: 0 to 20 % Operation Setting the hysteresis for alarm condition of oxygen concentration to “20%”...
  • Page 101 Hysteresis : If the value fluctuates around the condition value, there is a possibility that alarms occur fre- quently. 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 102: 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 103: 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 out- put 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 proce- dure.

  • Page 104: 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 105: 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 106: 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 107: 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 out- put 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 proce- dure.

  • Page 108: 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).” Set the output value of analog output signal as a percentage (%) of the full-scale value of the display range.

  • Page 109: 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”). If the key lock is valid, you cannot make settings and manual operation (manual calibration, manual browdown, etc.).

  • Page 110: Lcd Brightness Adjustment

    10.5.17 LCD brightness adjustment Description You can adjust the brightness of the screen (LCD) using this function. Settable range: 0 to 100 % Operation Setting the brightness of the screen (LCD) (example) Displayed message Key operation Description (LCD) Display the screen on the right in accordance with the key op- PARAMETER MENU eration summary and press the key.

  • Page 111: Setting Of Automatic Off Time

    10.5.18 Setting of automatic OFF time Description You can set the time for automatically turning off the backlight of the LCD (screen) using this func- tion. When the time set for turning off the backlight elapses after the last operation, the backlight is turned off.

  • Page 112: Station Number Setting

    10.5.19 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 op- PARAMETER MENU eration summary and press the key.

  • Page 113: Adjustment Screen For Analog Output 0

    10.5.20 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 op- PARAMETER MENU eration summary and press the...

  • Page 114: Adjustment Screen For Analog Output 100

    10.5.21 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 op- PARAMETER MENU eration summary and press the...

  • Page 115: Fuel Coefficient Setting (Option)

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

  • Page 116: 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 fac- tory setting menu. Customers cannot execute the factory setting menu. - 107 - INZ-TN1ZKM-E...

  • Page 117: 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.

  • Page 118: Specifications

    Flow guide tube: With or without blow-down nozzle N.O. (1a) contact, 200V AC, 2A Flange; JIS5K 65A FF (JIS5K-80AFF for high particulate gas) Converter specification (ZKM) Insertion length; 0.3, 0.5, 0.75, 1m (0.8m for high particulate gas) Concentration value indication: •...
  • Page 119 EMS requirements. process, and warm-up. The hold function can also be released. ZFK, ZKM Selects zero or span gas during manual Cock (option): zero or span calibration. Mounted on the side of the converter.

  • Page 120: Code Symbols

    12.2 Code symbols <Converter> 3 4 5 6 7 8 9 10 11 12 Description Construction IP66 IP67 Bench type Output signal 4 to 20mA DC 0 to 1V DC Other Communication function RS-232C RS-485 Mounting bracket None (Specify "None" when the bench type is selected) Mounting on panel surface Pipe mounting...
  • Page 121 <Detector> 4 5 6 7 8 9 10 11 12 13 14 15 16 Description Cal. gas inlet For f6mm tube For f1/4 inch tube Ball valve Power supply 100 to 120VAC 50/60Hz 200 to 240VAC 50/60Hz Flow guide tube flange application length...
  • Page 122 1000 1500 Power supply 100V/115V AC 50/60Hz 200V/220V AC 50/60Hz 230VAC 50/60Hz < Exclusive cable > 3 4 5 6 7 8 Description Connectable devices For ZKM Types For R thermocouple Conduit length Cable length None None None None None...

This manual is also suitable for:

Zkm1Zkm2Zfk8

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