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TOA-DKK ODM-135A Instruction Manual
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TOA-DKK ODM-135A Instruction Manual

Dissolved oxygen analyzer/transmitter
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ODM-IB38210E
No.
ANALYZER/TRANSMITTER
Please keep this instruction manual close at hand of the persons who are in charge of
the operation of this product.
Before operating this product, please read this instruction manual carefully for its
correct handling.
DISSOLVED OXYGEN
MODEL ODM-135A

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Summary of Contents for TOA-DKK ODM-135A

  • Page 1 DISSOLVED OXYGEN ANALYZER/TRANSMITTER MODEL ODM-135A Please keep this instruction manual close at hand of the persons who are in charge of the operation of this product. Before operating this product, please read this instruction manual carefully for its correct handling.
  • Page 2 Introduction Introduction (a) Thank you for your purchase of our product. The Model ODM-135A Dissolved Oxygen Analyzer/Transmitter (hereafter called the transmitter or the product) is a two-wire isolated type indicating transmitter used in a measurement system for various processes to measure dissolved Oxygen in liquid solutions.
  • Page 3 Model: ODM-135A Introduction (g) Since important items are described in “Safety Information”, read the contents carefully. (h) The product should be handled by persons who have received proper training. In addition, for technical services such as repairs, ask a specialist to do who is qualified for the technical certification system in our company or a person who has technical skills equivalent to that certification system.
  • Page 4 Model: ODM-135A Safety Information Safety Information (1) Meaning of markings Meaning of signal terms and symbols used in notations of warning in the instruction manual is described below. In addition, the alert symbol ( : General caution symbol) used on a product label, etc.
  • Page 5 Model: ODM-135A Safety Information Disassembly and Modification Do not disassemble or modify the sections of the product that are not described in the instruction manual. The product can be damaged. Warning Label Lost If any warning label affixed to this product becomes too difficult to read or lost, please order a new one through your local sales agent or our sales office and affix it to its original position.
  • Page 6 Model: ODM-135A Warranty Warranty (1) Warranty Coverage DKK-TOA Corporation (DKK-TOA) warrants its products against defective material or workmanship for the warranty period. (a) The warranty period is one year from the date of delivery to the original user. If the date of delivery cannot be specified, the warranty period is 24 months from the month following the date of manufacture shown on the product nameplate.
  • Page 7 Model: ODM-135A Reading Guide Reading Guide Refer to the necessary sections of this instruction manual depending on your purposes such as understanding the outline of this product or starting the product as shown below. The numbers in circles indicate sections to be referred to in sequential order.
  • Page 8 Model: ODM-135A Table of Contents Table of Contents ●Introduction ······················································································· 1 ●Safety Information ········································································· 3 (1) Meaning of markings  3 (2) Safety compliance items  3 (3) Notes on use of the instruction manual  4 ●Warranty ···························································································· 5 ●Reading Guide...
  • Page 9 Model: ODM-135A Table of Contents (10) Burnout selection  42 (11) Maintenance output type selection  44 (12) Transmission output response speed selection  46 (13) Applied voltage setting  47 (14) Measurement mode auto return selection  48 4. Maintenance ····················································...
  • Page 10 Model: ODM-135A Table of Contents 7.4 Extension by Cable··········································································· 78 (1) Extension cable  78 (2) Connector box  79 (Last page  80) - 9 -...
  • Page 11 Model: ODM-135A 1. Functions of Control Section 1. Functions of Control Section (1) Names of main components Case Digital display Rear cap Front cap Front cap Calibration switch Mode switch Standby switch Bracket Measure (MEAS) :Measure mode Standby (ST-BY) :Maintenance mode...
  • Page 12 Model: ODM-135A 1. Functions of Control Section (2) Switch functions Names and Functions of Switches Name Measurement Maintenance Function (used in text) mode mode  When pressed for 3 seconds or more in the Standby switch ○ ○ measurement mode (Standby indicator “ST-BY” is unlit), the mode changes to the maintenance mode (“ST-BY”...
  • Page 13 Model: ODM-135A 1. Functions of Control Section (3) Operation screen map (Power supply) 〔Maintenance mode: “ST-BY” is lit〕 (Press this switch for 〔 〕 3 seconds or more) ◎Calibration screen (D.CAL etc.) ◎DO measured value screen (DO) (Press this switch for 3 seconds or more) measured value screen (O2) ◎O...
  • Page 14 Model: ODM-135A 2.1 Operation Start Procedure 2. Operation and Calibration 2.1 Operation Start Procedure The transmitter can be put into normal operating state by following each operation below. ① Check the installation condition.  Check that the necessary installation work is completed, which is described in 7.
  • Page 15 Model: ODM-135A 2.1 Operation Start Procedure Calibration switch Mode switch Standby switch Switches on the Underside of the Transmitter 10.00 Example of 0.00 to 10.00mg/L mg/L RANG DO Measuring Range Screen  Normally, the setting is made according to the ordered specification.
  • Page 16 Model: ODM-135A 2.1 Operation Start Procedure Factory Setting Values of Setting Items Setting item Factory setting Reference item  DO value adjustment setting DO not adjusted (“oFF”) 3.3(2) “DO value adjustment setting”  Liquid temperature shift setting Liquid temperature not shifted 3.3(3) “Liquid temperature shift...
  • Page 17 Model: ODM-135A 2.2 Calibration 2.2 Calibration (a) Before measurement, this transmitter must always be calibrated and the characteristics of the electrode and transmitter adjusted using standard solution. (b) When measurements are continuous, the electrode characteristics are changed by contamination, etc. of the sample water, but calibration prevents this effect. Periodically perform calibration even after the start of operation.
  • Page 18 Model: ODM-135A 2.2 Calibration ③ Prepare the electrode.  Prepare the electrode tip so that it can be immersed in the zero solution prepared in the beaker. If the tip of the electrode is found dirty, thoroughly clean and rinse it with ion-exchanged water.
  • Page 19 Model: ODM-135A 2.2 Calibration ⑥ Immerse the electrode into the zero solution.  Rinse the electrode with ion-exchanged water and immerse it into the prepared zero solution (sodium sulfite solution). electrode zero solution (sodium sulfite solution) Immersing Electrode into Zero Solution ⑦...
  • Page 20 Model: ODM-135A 2.2 Calibration (2) Zero calibration with input off This is a simplified method of zero calibration to be executed by disconnecting the electrode lead wire from the terminal “1” of the transmitter, namely, by setting the input signal from the electrode side to off (oFF) without using the zero solution.
  • Page 21 Model: ODM-135A 2.2 Calibration  Finally, “0.00mg/L” appears on the main display (in case of D.CAL) and the zero calibration finishes.  If the zero calibration is required again, repeat the procedure of step ④．As for the span calibration, refer to the related section described later.
  • Page 22 Model: ODM-135A 2.2 Calibration  If the span calibration is required again, repeat the procedure of step ③． For returning to the setting screen group, press for 3 seconds or more. ④ Set to measurement mode.  Leave the electrode to the measuring point and press for 3 seconds or more.
  • Page 23 Model: ODM-135A 2.2 Calibration ⑥ Set to measurement mode.  Leave the electrode to the measuring point and press for 3 seconds or more. The transmitter returns to the measurement mode.  Return to the measurement mode (“ST-BY” unlit) and release transmission output hold.
  • Page 24 Model: ODM-135A 2.2 Calibration Span Calibration Values in each mode t℃ DO (mg/L) SAT (%) 14.16 20.9 100.0 8.11 20.9 100.0 6.60 20.9 100.0 ↑ Since the gas solubility varies with the temperature, the DO value changes accordingly. But the oxygen partial pressure remains constant without any change regardless of temperature.
  • Page 25 Model: ODM-135A 2.3 Stopping Operation 2.3 Stopping Operation When operation will be stopped for several weeks or more, as a rule, proceed as follows: ① Turn off the power source.  Turn off the power source to the transmitter at the supply side of the power transmission cable.
  • Page 26 Model: ODM-135A 3.1 Measurement Mode Screen Selection 3. Modes of Operations 3.1 Measurement Mode Screen Selection (a) The measurement mode contains screens such as the “DO measured value” screen shown in the table below and every time is pressed (less than 3 seconds), the screen switches from one to another.
  • Page 27 Model: ODM-135A 3.1 Measurement Mode Screen Selection (Continued from previous page) Screen name Screen display example Contents  Main display  DO measuring range set DO measuring range ⑤ 20.00 screen presently is displayed. RANG mg/L  Main display  Membrane thickness Membrane thickness ⑥...
  • Page 28 Model: ODM-135A 3.1 Measurement Mode Screen Selection (Continued from previous page) Screen name Screen display example Contents  Main display  One of the following three Transmission output ⑫ 1  Fast response speed screen 2  Standard 3  Slow...
  • Page 29 Model: ODM-135A 3.2 Maintenance Mode Calibration Screen Operation 3.2 Maintenance Mode Calibration Screen Operation (a) The maintenance mode contains the “Calibration” (D.CAL etc.) screen and the “Setting screen group” screens. (＞＞ 3.3 “Operations of Setting Screen Group in Maintenance Mode”) The “calibration”...
  • Page 30 Model: ODM-135A 3.2 Maintenance Mode Calibration Screen Operation (Continued from previous page) Procedure and display example Contents ST-BY ST-BY ST-BY 8.06 20.9 100.0 ％ ％ WAIT WAIT WAIT D.CAL O.CAL S.CAL mg/L <DO displayed calibration> <O displayed calibration> <SAT displayed calibration>...
  • Page 31 Model: ODM-135A 3.3 Operations of Setting Screen Group in Maintenance Mode 3.3 Operations of Setting Screen Group in Maintenance Mode For operation of the “calibration” (D.CAL, others) screen, refer to 3.2 “Maintenance Mode Calibration Screen Operation”. (1) Screen sequence of setting screen group (a) The setting screen group contains the screens shown below and each screen can be used for different purpose.
  • Page 32 Model: ODM-135A 3.3 Operations of Setting Screen Group in Maintenance Mode (Continued from previous page) Screen name Screen display example Contents  Main display  Upper limit value of the DO measuring range ③ ST-BY selection screen currently set DO measuring range 20.00...
  • Page 33 Model: ODM-135A 3.3 Operations of Setting Screen Group in Maintenance Mode (Continued from previous page) Screen name Screen display example Contents  Main display  Selected output type in the Maintenance output ⑩ ST-BY type selection screen maintenance mode HoLd “HoLd”...
  • Page 34 Model: ODM-135A 3.3 Operations of Setting Screen Group in Maintenance Mode (2) DO value adjustment setting (a) How to select on/off for DO value adjustment (sensitivity change) setting and how to set the DO value adjustment amount when “on” is selected are described in the table below. By this operation, the indication and the output signal of the transmitter can be adjusted to the DO measured value by another method (with a desk-top DO meter, etc.).
  • Page 35 Model: ODM-135A 3.3 Operations of Setting Screen Group in Maintenance Mode (Continued from previous page) Procedure and display example Contents ⑥ Enter DO value adjustment amount. Press to show DO measured ······················· value containing the adjustment amount on the main display.
  • Page 36 Model: ODM-135A 3.3 Operations of Setting Screen Group in Maintenance Mode (Continued from previous page) Procedure and display example Contents ③ Set to selection enabled state. ·························· Press for 3 seconds or more.  Selection for on/off setting is enabled.
  • Page 37 Model: ODM-135A 3.3 Operations of Setting Screen Group in Maintenance Mode Manual temperature transmitter compensation switch (M.TMP) remove Front cap Manual temperature compensation switch (M.TMP) (c) When making measurements by automatic temperature compensation, return the manual temperature switch (M.TMP) to the off (“OFF”) side. (Factory setting: “OFF”)
  • Page 38 Model: ODM-135A 3.3 Operations of Setting Screen Group in Maintenance Mode (5) DO measuring range selection (a) The DO value measuring range can be selected.  Operation screen ········ “DO measuring range selection” (RANG) screen (b) The following table shows the set value on the main display and the DO measuring range.
  • Page 39 Model: ODM-135A 3.3 Operations of Setting Screen Group in Maintenance Mode (6) Membrane thickness selection (a) The membrane thickness can be selected for the thickness change of membrane which is incorporated with electrode to be used.  Operation screen ········ “Membrane thickness selection” (MEMB) screen (b) This screen is provided mainly for technical service person.
  • Page 40 Model: ODM-135A 3.3 Operations of Setting Screen Group in Maintenance Mode (7) Displayed item for calibration selection (a) One of the three displayed items which is used for calibration can be selected.  Operation screen ········ “Displayed item for calibration selection” (CAL.S) screen (b) Usually set to “DO displayed calibration”...
  • Page 41 Model: ODM-135A 3.3 Operations of Setting Screen Group in Maintenance Mode (8) Stability check for calibration selection (a) The on/off procedure for the automatic stability check function, which performs calibration by checking that the electrode potential is stable at calibration, is shown in the table below.
  • Page 42 Model: ODM-135A 3.3 Operations of Setting Screen Group in Maintenance Mode (9) Signal amount for zero calibration and signal amount for span calibration setting (a) The signal amount for zero calibration or the signal amount for span calibration can be changed intentionally.
  • Page 43 Model: ODM-135A 3.3 Operations of Setting Screen Group in Maintenance Mode (Continued from previous page) Procedure and display example Contents ⑦ Set to entry state. ········································ Press for 3 seconds or more.  The figures of the main display blink and the transmitter enters the entry state.
  • Page 44 Model: ODM-135A 3.3 Operations of Setting Screen Group in Maintenance Mode Procedure for Burnout Selection Procedure and display example Contents ① Select the setting screen group. ························ Press for 3 seconds or more in the measurement mode and then press for 3 seconds or more.
  • Page 45 Model: ODM-135A 3.3 Operations of Setting Screen Group in Maintenance Mode (11) Maintenance output type selection (a) The procedure to set the transmission output type used during maintenance mode is described in the table below.  Operation screen ········ “Maintenance output type selection” (S.OUT) screen (b) For maintenance output type, you can select one of the three types: Hold (HoLd), Dummy (“12.0”...
  • Page 46 Model: ODM-135A 3.3 Operations of Setting Screen Group in Maintenance Mode (Continued from previous page) Procedure and display example Contents ⑤ Confirm the output mode. ······························· Press  If “HoLd” or “tH” is selected, go to Step ⑧. If is pressed here, the screen goes to the next screen.
  • Page 47 Model: ODM-135A 3.3 Operations of Setting Screen Group in Maintenance Mode (12) Transmission output response speed selection (a) The transmission output response speed can be selected.  Operation screen ········ “Transmission output response speed selection” (RESP) screen (b) For transmission output response speed, you can select one of the three selection items below: ...
  • Page 48 Model: ODM-135A 3.3 Operations of Setting Screen Group in Maintenance Mode (13) Applied voltage setting (a) The applied voltage to present electrode can be checked or set in the following screen.  Operation screen ········ “Applied voltage setting” (V.SET) screen (b) This screen is provided mainly for technical service person.
  • Page 49 Model: ODM-135A 3.3 Operations of Setting Screen Group in Maintenance Mode (14) Measurement mode auto return selection (a) If Off (oFF) is selected in this screen, the auto return from maintenance mode to measurement mode function can be canceled. When On (on) is selected, the mode can return to the auto return.
  • Page 50 Model: ODM-135A 4.1 Maintenance List 4. Maintenance 4.1 Maintenance List (a) To operate the product normally on a continuous basis and maintain its specified performance, understand its function, etc. thoroughly and perform maintenance work periodically. 【IMPORTANT】  Operating the product without performing maintenance periodically can result in a failure.
  • Page 51 Model: ODM-135A 4.2 Spare Parts 4.2 Spare Parts  Main DO electrode (temperature compensation resistor of 10kΩ) Model: 7533L (aeration tank for general) Model: 7536L (aeration tank for general or a night soil tank)  JIS special grade anhydrous sodium sulfite (sulfite soda)  “Zero” calibration by solution ...
  • Page 52 Model: ODM-135A 4.3 Operation Check Using Equivalent Input 4.3 Operation Check Using Equivalent Input 10kΩ fixed 1MΩ fixed resistance resistance － ＋ Standard voltage generator ＋ － Electrode lead wires ＋ － (or extension cable) Digital multimeter (Measurement of transmission output) <Rear view>...
  • Page 53 Model: ODM-135A 4.3 Operation Check Using Equivalent Input  1MΩ fixed resistance  Between terminal 1 and the output terminal on (+) side of standard voltage generator  Digital multimeter  Between terminal 21 and its lead wire ④ Calibrate  Perform the zero and span calibration as follows.
  • Page 54 Model: ODM-135A 4.3 Operation Check Using Equivalent Input Input and Output Standard Value for Measuring Range (Model ODM-135A) 0-1mg/L range 0-2mg/L range 0-5mg/L range Equivalent Displayed Transmission Equivalent Displayed Transmission Equivalent Displayed Transmission input value output input value output input...
  • Page 55 Model: ODM-135A 4.3 Operation Check Using Equivalent Input 〔NOTE〕  Always connect the standard voltage generator through the fixed resistor of 1MΩs. The equivalent input shown in the table “Input and Output Standard Value for Measuring Range” are based on that condition.
  • Page 56 Model: ODM-135A 4.4 Transmission Output Adjustment 4.4 Transmission Output Adjustment (a) If the transmission output value does not agree with the indication of a receiving instrument (such as a recorder), you can adjust the transmission output of the transmitter.  Operation screens ··········· “Transmission output adjustment 4mA” (4mA) screen “Transmission output adjustment 20mA”...
  • Page 57 Model: ODM-135A 4.4 Transmission Output Adjustment ST-BY 20.00 20mA Transmission Output Adjustment 20mA Screen ④ Adjust the 20mA side.  Press to increase or decrease the transmission output value of 20mA on the main display until the span value of the receiving instrument is adjusted correctly.
  • Page 58 Model: ODM-135A 5.1 Error Message 5. Troubleshooting 5.1 Error Message (1) Error messages for calibration and necessary actions (a) When measurement is continued, the characteristic of the DO electrode changes gradually by contaminants and chemical reactions. By performing the calibration, correct measurement can be maintained.
  • Page 59 Model: ODM-135A 5.1 Error Message (a) Zero calibration cannot be performed. (E--0) When zero calibration is performed outside the ±0.05µA range for the design standard, error message “E--0” is displayed. at 25℃ Input　 current (μ A) Zero calibration range ± 0.05μ A...
  • Page 60 Model: ODM-135A 5.1 Error Message (2) Other error messages and necessary actions Storage element error (E-20), Setting data error (E-21), and temperature error (E--3) are for burnout function. Other Error Messages and Necessary Actions Item Indication Message name and contents Actions, etc.
  • Page 61 Model: ODM-135A 5.2 Troubleshooting Flowchart 5.2 Troubleshooting Flowchart After calibration, error messages E-0 Check the electrode, etc. ＞＞ 5.1(1) “Error to E-2 appear. messages for calibration and necessary actions” Error messages E-20 and E-21 Contact DKK-TOA. appear. Voltage between terminals 20 and 21 Check the power supply and receiving devices.
  • Page 62 Model: ODM-135A 6.1 Specifications 6. Specifications and Explanation 6.1 Specifications (a) Basic Items Product name : Dissolved Oxygen Analyzer/Transmitter Model : ODM-135A Measuring object : Dissolved oxygen in water (DO), Oxygen in air (O ), Saturation ratio of Dissolved oxygen in water (SAT) and temperature (TEMP)
  • Page 63 Model: ODM-135A 6.1 Specifications (b) Performance : DO measurement  within 1%FS (equivalent input) Linearity (indication) However, for 0 to 1mg/L range, 0 to 2 mg/L range, within 0.05mg/L : Within 0.4%FS (0.06mA) with respect to indicated value (equivalent Conversion difference...
  • Page 64 Model: ODM-135A 6.1 Specifications (d) Functions Zero calibration  Calibration by opening the electrode terminal of Calibration method the transmitter or by immersing the electrode into the solution of 5 to 10% sodium sulfite Span calibration…Calibration of electrode by air or air saturated water.
  • Page 65 Model: ODM-135A 6.2 Key Point of DO Measurement 6.2 Key Point of DO Measurement The key point of DO measurement, especially, as for the characteristic of the dissolved oxygen analyzer, the nature of dissolved oxygen, etc. is described here. (1) Important factors affecting the measurement There are 4 factors which affect the DO measurement: temperature, pressure, flow rate and composition of the sample being measured.
  • Page 66 Model: ODM-135A 6.2 Key Point of DO Measurement (d) Composition of Sample Since the DO concentration falls by adding water-soluble component such as NaCl to the sample even if the oxygen partial pressure remains unchanged, correction of the DO concentration is necessary in such a case.
  • Page 67 Model: ODM-135A 6.2 Key Point of DO Measurement (2) Amount of saturated dissolved oxygen in water [Atmosphere 0.1MPa (absolute pressure) (760mmHg), Oxygen 20.9% in the moisture saturation air] Chloric-ion in water (mg/L) DO to be Temp. subtracted 5000 10000 15000...
  • Page 68 Model: ODM-135A 6.2 Key Point of DO Measurement 〔NOTE〕  However, figures of Temperature ≧40°C and dissolved oxygen at 25000mg/L of chloric-ion shown above are calculated based on Truesdale’s equation. <G.A.Truesdale, et, al.: J. appl.Chem., 5, 53(1955)> (3) Measurement for samples containing salts...
  • Page 69 Model: ODM-135A 6.2 Key Point of DO Measurement Indication of DO Analyzer (mg/L) DO concentration in Sample DO Concentration 20.000 10.000 Chloric-ion Concentration (mg/L) Relation between Chloric-ion Concentration and DO Concentration (25°C) For example, if the chloric-ion concentration increases to 20,000mg/L, the actual DO at 25°C falls to 6.52mg/L.
  • Page 70 Model: ODM-135A 6.2 Key Point of DO Measurement (c) Method to obtain DO concentration with correction factor This method is suitable for DO measurement of various kinds of samples. For the purpose of explanation, assume that the chloric-ion concentration is 20,000mg/L at 25°C and the saturated DO concentration under this condition is 6.52mg/L from the table of 6.2(2) “Amount of...
  • Page 71 Model: ODM-135A 7.1 Transmitter Mounting 7. Installation 7.1 Transmitter Mounting (1) Installation location of transmitter Install the transmitter in a location which conforms to the specification and satisfies the following conditions: (a) A location where the lead wires of the sensor and extension cable reach.
  • Page 72 Model: ODM-135A 7.2 Sensor Mounting Mounting bracket This bracket can also be installed on the left side of the transmitter. Fixing bolt 50A pipe (φ60.5), etc. How to Mount the Transmitter 7.2 Sensor Mounting The installation conditions of sensor are such as, it is easy to perform maintenance and no strong vibration exits.
  • Page 73 Model: ODM-135A 7.3 Wire Connection 7.3 Wire Connection Electric Shock If a “wash in progress” contact signal cable of sensor with cleaner (option) is connected to the transmitter, do not touch the terminals in the product while power is applied. An electric shock may result.
  • Page 74 Model: ODM-135A 7.3 Wire Connection (3) Power / transmission cable (a) Use a 2-core shielded cable to connect between the terminals 20(+), 21() of the transmitter terminal board, DC power supply and a receiving instrument (such as a recorder). (b) Provide a switch outside of this transmitter so that power supply can be turned off at the power source side.
  • Page 75 Model: ODM-135A 7.3 Wire Connection Removing the Rear Cap ③ Assemble watertight glands.  Among 3 sets of watertight glands, remove the glands on the left and in the center and put a corresponding cable through each gland as shown below.
  • Page 76 Model: ODM-135A 7.3 Wire Connection  To maintain airtight condition, use a taper packing 【IMPORTANT】 appropriate for the cable diameter. If a taper packing is not appropriate for the cable diameter, airtight condition cannot be maintained and it will cause insulation deterioration.
  • Page 77 Model: ODM-135A 7.3 Wire Connection ⑤ Tighten the watertight glands.  Tighten the watertight glands to keep airtight for the transmitter. ⑥ Put on the cap, etc.  Check the wiring of the terminal board again and install the insulation cover and put on the cap.
  • Page 78 Model: ODM-135A 7.3 Wire Connection 〔NOTE〕  Immediately before the washing operation begins, a “wash in progress” contact signal is output from the cleaner and the transmission output value becomes the transmission output type for maintenance mode. (7) Wiring using conduit (a) It is recommended that you use conduit for wiring.
  • Page 79 Model: ODM-135A 7.4 Extension by Cable 7.4 Extension by Cable (Option) When the product (transmitter, controller, meter etc.) must be installed at a place the electrode lead wire (standard: 5m) cannot reach, extend the lead wire by using the attached cable and connector box according to the order specifications.
  • Page 80 Model: ODM-135A 7.4 Extension by Cable (2) Connector box (Option) Cover Remove the cover Terminal block for Terminal block for extension cable electrode lead wire Wiring port for extension cable Wiring port for Ground terminal electrode lead wire Type D ground...
  • Page 81 Model: ODM-135A 7.4 Extension by Cable (e) When the taper packing for electrode has three holes, remove the rubber film of the hole matched to the thickness of the electrode lead wire and pass the lead wire through that hole.
  • Page 82 Head Office Address: 29-10, 1-Chome, Takadanobaba, Shinjuku-Ku, Tokyo, 169-8648 Japan Telephone: +81-3-3202-0225 Facsimile: +81-3-3202-5685 URL http://www.toadkk.co.jp/...