Optex TC-Mi Instruction Manual
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Optex TC-Mi Instruction Manual

Optex TC-Mi Instruction Manual

Turbidity checker
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Whole document of the DOC can be referenced in the following website;
OPTEX CO., LTD.
5-8-12, Ogoto, Otsu, Shiga, 520-0101 Japan
T el.+81-77-579-8680 Fax.+81-77-579-8199
https://www.optex.co.jp/e/products/environmental-sensor/
https://navi.optex.net/cert/contact/
www.optex.net
2023.07 59-2568-2
Turbidity Checker
TC-Mi
Thank you very much for purchasing Turbidity Checker TC-Mi.
All of this instruction manual must be read before operation of the
Turbidity Checker for safe and proper operation.
This instruction manual should be kept for future reference such as
maintenance.
The instruction manual is also available on the following website.
https://navi.optex.net/manual/05297/?lang=en
Instruction
Manual

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Summary of Contents for Optex TC-Mi

  • Page 1 TC-Mi Instruction Manual Thank you very much for purchasing Turbidity Checker TC-Mi. All of this instruction manual must be read before operation of the Turbidity Checker for safe and proper operation. This instruction manual should be kept for future reference such as maintenance.

  • Page 2: Table Of Contents

    Noise reduction setting ........... 22 TC-Mi Instruction Manual Thank you very much for purchasing Turbidity Checker TC-Mi. Turbidity unit selection ........... 23 All of this instruction manual must be read before operation of the Turbidity Checker for safe and proper operation.

  • Page 3: For Safe Use

    Use the Turbidity Checker only for measurement of water quality. In order to use the TC-Mi properly, observe the following precautions. Precautions which are the cause of failure: " " denotes "Prohibited action", and "...

  • Page 4: Names Of The Parts

    Names of the parts Up and down buttons Fuse Power supply DIP switch Measurement bath switch Cover Deaerator Terminal block [Inside panel] Panel Display Cable clamps Operation keys Display Measurement value (During the setting, the setting value is displayed.) 0.1234 MO DE Unit During the setting, the setting item is displayed.
  • Page 5 How to open / close the Cover How to connect / disconnect the tube Open/close the cover by loosening/fastening the four cover fixing screws. Caution Screws for fixing the cover •Do not apply strong impact or excessive force to the joint. Otherwise, it may damage the joint, as well as may cause crush, rupture, or disconnection of the tube.
  • Page 6 How to attach / detach the Deaerator How to attach / detach the Drain cap Attach the Deaerator and fix it by using the fixing screws. MO DE Deaerator Water inlet Water outlet Attaching Detaching Insert the Drain cap as far Pull out (②) while pressing down as it goes.

  • Page 7: Measuring Principle

    Measuring principle Installation Turbidity Checker TC-Mi uses a method of 90 degree scattered light. In Installing TC-Mi unit this method, a light source illuminates the surfaces of matter suspended in the water, and the light is scattered by these surfaces is detected by...

  • Page 8: Wiring

    Install the TC-Mi unit on the wall. For the mounting pitch, see the figure below. 2 Wiring Caution • Be sure to use the power supply of 24 VDC. Otherwise it may cause fire or electric shock. • Before installation, turn off the power supply switch, and then wire the power supply cable.

  • Page 9: Setting The Dip Switch

    ▼▲ to fine-adjust the 20 mA lower limit. 6) Turn OFF SW3. Start passing water through the TC-Mi unit. Do not use. •If leaking from the inlet passage, the outlet and the drain, check the connection of the tubes, joints and drains.

  • Page 10: Operation

    Checking water level Press and hold the button for 2 seconds or more to check or change the setting. Pass water until the water level becomes a certain. Use the button to change the setting value. Pressing and holding the If the water is overflowing from the measuring tank, check the measured water flow rate button keeps changing the displayed value.

  • Page 11: Output Selection

    ■The following table gives default settings and setting ranges. Output selection Default Setting range Select the output function at Self-Checking/Alarm. •The default output selection is Self-Checking. Output selection Self-Checking Self-Checking / Alarm •When Alarm output is selected, output is reversed. 0.01 to measurement range upper.

  • Page 12: Alarm Level, Alarm Timer

    Alarm level, Alarm timer Range of alarm timer from 1 to 120 minutes or it can be set to OFF (immediately output an alarm). When the measurements get higher than the Alarm level continuously beyond the time •The default Alarm timer setting is OFF. set by Alarm timer, the Alarm output will be produced.

  • Page 13: Noise Reduction Setting

    Turbidity unit selection Press the button to input 300. Press the button to increase the value, The turbidity unit used by the Turbidity Checker can be changed according to and press the button to decrease the specific standards or usage conditions. Response Time value.

  • Page 14: Offset Adjustment

    Offset adjustment Digital communication setting display The output of measuring clean water (zero turbidity) is adjusted. Display the digital communication setting. Refer to page 31, "11 Digital Communication". •Adjustable range is -1.0000 to +1.0000. •The default value is 0.0000. MODE: Display the communication protocol. (Example) Adjust in offset so that the measured value MODE Modbus RTU 1 BAUD: Display the baud rate.

  • Page 15: Troubleshooting

    TC-Mi needs repair. Contact your dealer. •Do not use organic solvent such as benzene for cleaning this product. Do not wipe TC-Mi with organic solvent such as benzine.  When Err3 is displayed, the self-checking output is produced, 3 mA is output to the signal •Wiping the light source window with a hard cloth may cause scratches, which disables...

  • Page 16: Specifications

    Storage for a long time (NTU/FNU: Formazine standard solution) Measuring range ■When the Turbidity Checker TC-Mi is not used over a prolonged period, keep it as Select from 0 to 2, 0 to 5 and 0 to 20 follows: (度: Polystyrene standard solution) •Drain off the water from the measurement tank and keep the water.

  • Page 17: Dimensions

    Transmission Method 2-wire, semi-duplicate MODBUS RTU 1 (default) MODBUS ASCII 1 MODBUS RTU 2 Protocol MODBUS ASCII 2 TC-Mi protocol Baud rate 9600 (default) / 14400 / 19200 / 38400 bps OUT IN Data bits 8 bit Start bits 1 bit...
  • Page 18 MODBUS RTU 2 (OM2) 0020 ushort Output selection 0xAAFE MODBUS ASCII 2 (OM2) string Serial number 0047-0054 0xAA0F TC-Mi protocol 0070 ushort Error number ushort Parity 0083 0084 ushort Protocol (Ex.) When changing from "MODBUS RTU 1 (OM1)" to "TC - Mi protocol". (When slave address=1)

  • Page 19: Tc-Mi Protocol

    ・Baud rate (OM1/OM2 common) TC-Mi protocol Value Description 0xAA02 9600bps (default) ◆Frame Configuration 0xAA03 14400bps Start Command Data 0xAA04 19200bps n byte n byte 0xAA05 38400bps Command 1 Command 2 Description ・Parity (OM1/OM2 common) (0x41) (0x42) Start measurement Value Description...
  • Page 20 ◇Read out span adjustment value Step2 byte0 Output measured value Measured value byte0 After sending ACK, send the measured value and error code in order. Request command (As soon as measurement is completed, send the measured value and error code in order one by one.) Send the decimal value as ASCII code by LSB first.
  • Page 21 Description 0xAA00 MODBUS RTU 1 (OM1) (default) byte0 0xAA01 MODBUS ASCII 1 (OM1) Request command 0xAA02 TC-Mi protocol byte0 0xAA03 MODBUS RTU 2 (OM2) Normal response Value 0xAA04 MODBUS ASCII 2 (OM2) Return the written setting of turbidity unit selection directly after receiving the request command normally.
  • Page 22 ◇Overwrite baud rate ◇Read out noise reduction setting byte0 3,4,5,6 byte0 Request command Value Request command byte0 2,3,4,5 byte0 Normal response Value Normal response Value Return the written setting of communication specification directly after receiving the request command. Immediately after normally receiving the request command, the value is sent back. (Return nothing unless the command can be received normally.) (Return nothing unless the command cannot be received normally.) Send the decimal value as ASCII code by LSB first.
  • Page 23 MEMO MEMO...

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