Sensorex TX2000 Operation Manual

Intelligent ph/orp
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Operation
Manual
T X 2 0 0 0
Intelligent
pH/ORP
Transmitter
1
2008 Certificate No. C0036132

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Summary of Contents for Sensorex TX2000

  • Page 1 Operation Manual T X 2 0 0 0 Intelligent pH/ORP Transmitter 2008 Certificate No. C0036132...
  • Page 2: Precautions For Installation

    Thank you for purchasing Sensorex products. In order to continually improve and enhance the transmitter’s function, Sensorex reserves the right to modify the content and icon display of the product. The actual situation is subject to the instrument without notice. The operation manual is only provided for function and installation description.
  • Page 3: Table Of Contents

    2.4.1 Cable set-up 2.4.2 Assembly of immersive electrode holder and junction box 2.5 Illustration and description of junction box (not shown) Overview of Intelligent pH/ORP transmitter TX2000 3.1 Illustration of rear panel 3.2 Illustration of terminal function 3.3 Description of terminal function 3.6 Typical wirings...
  • Page 4 6.6 Temperature 6.7 Relay 1 6.8 Relay 2 6.9 Clean 6.10 Analog output 1 (pH/ORP) 6.11 Analog output 2 (temperature) 6.12 Date/Time (Clock) 6.13 Sample average of measurements (Digital filter) 6.14 Backlight settings 6.15 Contrast settings 6.16 Automatically back to measurement mode(Return) 7.
  • Page 5: Specifications

    1. Specifications Model TX2000 Measuring modes pH / ORP / Temp. -2.00~16.00 pH -1999~1999 mV Ranges -30.0~130.0 C Temp. 0.01 pH Resolutions 1 mV 0.1 C Temp. ±0.01 pH (± 1 Digit) ±0.1% (± 1 Digit) Accuracy ±0.2C (± 1 Digit), Temp.
  • Page 6: Assembly And Installation

    2. Assembly and installation 2.1 Transmitter installation: This Transmitter can be installed through panel mounting, wall mounting and 2” pipe mounting. Installation of panel mounting: First, prepare a square hole of 3.66” (93mm) x 3.66” (93mm) on the panel box, and then insert the controller directly into the panel box. Insert the mounting bracket from the rear, and until it is fixed into the pickup groove.
  • Page 7: Illustration Of Wall Mounting And Pipe Mounting

    2.3 Illustration of wall mounting and pipe mounting Installation of pipe mounting Installation of wall mounting Fixed with U-shaped pipe clamp. Fixed with 4 x M4 screws (Optional, Order Number: 5333027) Penetrate the two prepared holes in the rear cover and fix the U-shaped pipe clip, and then install two waterproof squeezed caps (the transmitter’s standard accessory kit) into the holes from inner rear cover to prevent...
  • Page 8: Assembly Of Electrode And Housing

    2.4 Assembly of electrode and housing Set-up diagram of coaxial cable: 2.4.1 Cable set-up See the correct set-up method on the left: Note: The black conductive rubber Metal coaxial shield covering on the coaxial inner should be removed. Transparent coaxial inner (Remove the conductive rubber) a.
  • Page 11: Illustration Of Rear Panel

    3. Overview of pH transmitter TX2000 3.1 Illustration of rear panel: 3.2 Illustration of terminal function: POWER GLASS INPUT POWER 4/20m Temp RLY1 RLY2 WASH/Cln 4/20m ±12V...
  • Page 12: Description Of Terminal Function

    TX2000RS) 23 4~20mA - terminal G:Temperature current output terminal -, for external recorder or PLC control (only applicable for TX2000); or RS-485 output GND (only applicable for TX2000RS) 24 NC / D-(A): NC or RS-485 output D-(A) (only applicable for...
  • Page 13: Typical Wirings

    3.6 Typical wirings Two-wire distribution Three-wire distribution (No solution ground) GLAS REF. REF. GLAS Coaxial Coaxial Coaxial Coaxial shield Black shield inner inner Short circuit bar 3.7 Illustration of electrical connection 100 ~ 240VAC Transmitter Surge absorber Surge absorber External relay Cleaning device Surge absorber Surge absorber...
  • Page 14: Configuration

    4. Configuration: 4.1 Illustration of front panel: 4.2 Keypad: In order to prevent inappropriate operation by others, before the parameter setting and calibration, the operation applies multi-keys, and coding protection if necessary. Description of the key functions is in the following: :In the parameter set-up mode, pressing this key allows you exit parameter set-up mode and back to Measurement mode.
  • Page 15: Display

    4.4 Display: 1. When the function is activated, the display shows and twinkles the description, “Clean Running”. At the same time, the ACT indicator LED lights up, and the transmitter automatically turns off Relay 1 and Relay 2 function. After finishing cleaning, the Relay 1 and Relay 2 will automatically back to normal status.
  • Page 16 Clean function in action condition Note: The “HOLD” warning text appears when clean function is activated, or when entering setup menu, or when entering calibration menu. Under HOLD status, the corresponding display and output are as follows: 1. Both Relay 1 and Relay 2 are not functioning. If enter setting menu or calibration menu under clean status, the instrument will stop clean status automatically.
  • Page 17: Operation

    5. Operation 5.1 Measurement mode: After all electrical connections are finished and tested, connect the instrument to the power supply and turn it on. The transmitter will automatically enter measurement mode with the factory default settings or the last settings from user. 5.2 Set-up menu: Please refer to the set-up instructions in Chapter 6.
  • Page 18: Settings

    6. Settings Block diagram of setting-part 1 Overview Auto Code Language Mode Multi-Cal. Temperature Relay 1 Relay 2 Clean Return Setting Setting Setting Setting Setting Setting Setting Setting Setting Select Select Select Select Tradi- Simpli- Input English tional fied pH/ORP No.
  • Page 19 Block diagram of setting-part 2 CONTINUED FROM PREVIOUS PAGE Analog 1 Analog 2 Relay2 Clean Clock Digit Filter Back Light Contrast Return Code pH/ORP Temp. Setting Setting Setting Setting Setting Setting Setting Setting Output 1 Output 2 Select Select Select Select Number of Manual...
  • Page 20: Entry Of Set-Up Menu

    6.1 Entry of set-up menu In the measurement mode, pressing the two keys simultaneously allows you enter the overview of current setting, and press to enter the set-up mode to modify the setting if necessary. “Measurement (Mode)” Press Press Press Press Press to confirm it...
  • Page 21: Security Code Of Settings(Code)

    6.2 Security code of settings After entering set-up mode, select “code” item, press to enter into code procedure. The code pre-setting is 1111. Note: The code of setting mode is prior to the code for calibration. That means that the code of setting mode can be used for the code of calibration mode. Press to confirm it.
  • Page 22: Language

    6.3 Language Enter Language setup menu, select the system language from English, Traditional Chinese and Simplified Chinese. Press to confirm it. Press Press to select to select language type language type Press to confirm it. Enter “Measurement Mode” Setup...
  • Page 23 6.4 Mode Enter setup of “Mode”. Select between “pH” or “ORP” measurement. Press to confirm it. Press to select between pH or ORP Press to confirm it. Enter ”Multi-Cal” Setup...
  • Page 24 6.5 Multi-Cal Enter setup of multi-points calibration to set the number of calibration points. Press to confirm it. Press to select the number of calibration points. There are 1~3 points to choose from. The factory default is 2 points. When the calibration reaches the number of setting points, the calibration procedure will automatically finish and display the calibration result.
  • Page 26: Temperature

    6.6 Temperature Enter setup of “Temperature” to select temperature compensation mode. Select from NTC(NTC 30K), PTC(PT 1K) or MTC(Manual adjustment). Press to confirm it. Press Press to select to select Press to confirm it. Press to confirm it. Use standard thermometer to test If necessary, compare with the actual temperature of the the actual temperature value...
  • Page 27: Relay

    6.7 Relay 1 Enter setup of Relay 1. Select the item to turn on or turn of the relay 1 function. If you select to turn on the relay 1, then select for using relay 1 as “High set-point” alarm or “Low set-point” alarm. Set the value of set-point (SP) and Hysteresis (Hys.).
  • Page 28 6.8 Relay 2 Enter setup of Relay 2. Select the item to turn on or turn of the relay 2 function. If you select to turn on the relay 2, then select for using relay 2 as “High set-point” alarm or “Low set-point” alarm. Set the value of set-point (SP) and Hysteresis (Hys.).
  • Page 29: Clean

    6.9 Clean Enter setup of “Clean” function. Select the icon to turn on or turn off the clean function. If you select “Auto” turning on, then set the timer of the clean function including automatically turning on time and turning off time, and set the Hysteresis value(Hys.). Note: When the clean function is turned on, if any value is set to 0, the instrument will automatically turn off this function.
  • Page 31: Analog Output 1 (Ph/Orp)

    6.10 Analog output 1 (pH/ORP) Enter setup of Analog 1. Select 0~20mA or 4~20mA current output. Set the related value to the range of pH/ORP measurement. If the range of the pH/ORP measurement is to be set smaller, the resolution of current output is higher. When the measured value exceeds the higher range limit, the current will remain approximately 22mA output.
  • Page 32: Analog Output 2 (Temperature)

    6.11 Analog output 2 (Temperature) Enter setup of Analog 2. Select 0~20mA or 4~20mA current output. Set the related value to the range of temperature measurement. If the range of the temperature measurement is to be set smaller, the resolution of current output is higher. When the measured value exceeds the higher range limit, the current will remain approximately 22mA output.
  • Page 33: Date/Time(Clock)

    6.12 Date/Time(Clock) Enter setup of Date/Time(Clock). Set the “Year”, “Month”, “Date”, “Hour”, and “Minute” time. If you select to turn off the clock function, the clock will not display in measurement mode. The calibration time of calibration record will also show ”OFF” at the calibration overview display. Note: The clock needs to be reset in the event of a power failure.
  • Page 34: Sample Average Of Measurements (Digital Filter)

    6.13 Sample average of measurements (Digital Filter) Enter the setup of Digital filter. You may select the number of sample to be averaged each time to become a reading which is gradually counted in order to increase the stability of measurement. Press to confirm it.
  • Page 35: Backlight Settings

    6.14 Backlight settings Enter setup of backlight display. Set the brightness of display(-2~2, dark~bright) and sensitivity of the sensitization sensor(-2~2, insensitive~sensitive). When a key is pressed, the touch-on backlight function will be activated. Regardless of the type of backlight mode, the touch-on function will activate the backlight. If there is no keystroke for 5 seconds, the display will return to the original backlight setting status.
  • Page 36: Contrast Settings

    6.15 Contrast settings Enter setup of display contrast. Set the contrast of display according to (-2, -1, 0, 1, 2, light to dark) Press to confirm it. Press to select display contrast level. Press to confirm it. Enter “Auto return mode (Return)”Setup...
  • Page 37 6.16 Return Enter setup of auto return mode (Return) to set the function that the instrument automatically exit the setup menu after a period of time without pressing any key. The “Manual Exit” means that it needs to exit setup menu manually, while “Auto” means that the display will automatically exit the setup menu and return to measurement mode after a period of time without pressing any key.
  • Page 38: Calibration Block Diagram Of Calibration

    7. Calibration Block diagram of Calibration Cal. Info. Return Code TECH NIST Setting Setting Temp. adjust for Temp. adjust for Temp. adjust for Manual Input Auto first buffer (MTC first buffer (MTC first buffer (MTC Exit Password or ATC) or ATC) or ATC) Return Reading for first...
  • Page 39 7.1 Enter calibration setup menu In the measurement mode, pressing the two keys simultaneously allows you enter the Calibration Information. If you do not need to re-calibrate the measurement system, press to return to measurement mode. If you need to re-calibrate the system, press to enter to the calibration setup menu.
  • Page 40: Security Password Of Calibration

    7.2 Security password of calibration (Code) Select the Code (password) icon after entering calibration setup mode. Select to activate code function or not. The default Calibration setting code is “1100”. Press to confirm it. The first ‘0” of digits ‘0000” start to twinkle.
  • Page 41: Ph Calibration

    7.3 pH Calibration The instrument provides multi-point standard buffer solution calibration. You may decide how many points to calibrate the measurement system(up to 3-point). The principle is according to “Method of Least Squares”. Apply linear regression to calibration the electrode’s slope and zero point (Any, Offset or Zero point). When calibrating a electrode, you may calibrate 1 to 3 point in any sequence to provide linear regression for mV and pH multi-calibration of a electrode, and to show the electrode’s slope and zero point(Any, offset or Zero point) at 25˚C.
  • Page 42: Definition Of Calibration Parameter

    7.3.4 Definition of calibration parameter You can calibrate the electrode by one point or up to three points of standard solutions in any sequence. As different calibration point method is applied, the definition of the zero point and slope will be different. Calibration Determination The showed calibration value...
  • Page 43: Tech, Nist Buffer Calibration

    7.3.5 TECH, NIST buffer Calibration The procedure below is two-point calibration of TECH buffer. (The procedure is same as NIST buffer mode.) First, enter the setup of Multi-points calibration and set the number of calibration point to 2. (See chapter 6.5 Multi-Cal) Then, go to Calibration menu and select TECH mode.
  • Page 44: Any Calibration

    7.3.6 Any Calibration The procedure below is two-point calibration of Any mode. First, enter the setup of Multi-points calibration and set the number of calibration point for 2. (See chapter 6.5 Multi-Cal) Then, go to Calibration menu and select “Any” mode. Follow the procedure diagram below.
  • Page 45: Orp Calibration

    7.4 ORP Calibration Under ORP measurement mode, enter calibration setup menu. Select Calibration icon, and adjust mV value. The adjustable range is from -300mV to 300mV. Press to confirm it. Put the ORP electrode into ORP standard solution. Press to adjust the main display value until it is equal to the desired mV value.
  • Page 46 7.5 Return Enter setup of auto return mode (Return) to set the function that the instrument automatically exit the setup menu after a period of time without pressing any key. The “Manual Exit” means that it needs to exit calibration setup menu manually, while “Auto” means that the display automatically exit the calibration setup menu and back to measurement mode after a period of time without pressing any key.
  • Page 47: Error Messages (Error Code)

    , or maintain the the electrode recognized electrode or change a new electrode, and make another calibration. Wrong password Error5 Re-enter a password ERROR CODE Serious error that does Please contact Sensorex Technical Error9 not permit any further Support. measuring...
  • Page 48: Maintenance

    9. Maintenance Generally speaking, under normal operation, the transmitter needs no maintenance except regular cleaning and calibration of the electrode to ensure accurate and stable measurement and system operation. The cleaning cycle for the electrode depends on the pollution degree of the measurement sample.
  • Page 49: Appendix

    Appendix Table 1 TECH Buffers TECH buffers TEMP˚C Buffer 4.01 Buffer 7.00 Buffer 10.00 3.999 7.087 10.241 3.998 7.053 10.155 3.999 7.031 10.116 4.002 7.011 10.047 4.006 6.996 9.998 4.011 6.985 9.952 4.018 6.976 9.925 4.031 6.971 9.874 4.047 6.969 9.843 4.055 6.969...
  • Page 50 2008 Certificate No. C0036132...

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