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Model LXT-230 Transmitter

Installation and Operating Manual

for

pH and ORP

Teledyne Analytical Instruments

16830 Chestnut Street • City of Industry, CA 91748

888-789-8168 • [email protected] • www.teledyne-ai.com

Содержание LXT-230

Страница 1: ...l LXT 230 Transmitter Installation and Operating Manual for pH and ORP Teledyne Analytical Instruments 16830 Chestnut Street City of Industry CA 91748 888 789 8168 ask_tai teledyne com www teledyne ai...

Страница 2: ...6 2 3 Sensor Wiring 6 3 0 FAMILIARIZATION 7 3 1 Key Functions 7 3 1 1 Menu Selection Keys 7 3 1 2 Calibrate Keys 7 3 2 Display Menus and Screens 7 3 2 1 Contrast Menu 7 3 2 2 Main Menu 8 3 2 3 Electro...

Страница 3: ...Guidelines 15 6 7 Back to Factory Calibration 15 6 8 Output Calibration 15 6 9 Temperature Calibration Trim Adjustment 16 6 10 Temperature Units Calibration Celsius Fahrenheit Conversion 16 7 0 LXT 2...

Страница 4: ...ane switches located on the front cover removing the need to open the NEMA 4X enclosure and exposing components to the environment No potentiometric adjustments are required 1 2 Digital Display A 32 c...

Страница 5: ...ic Ion Dissolved Oxygen or Temperature The second output is fully isolated from the inputs and the primary output and is floating so it can have either a positive or negative common 1 10 Three Outputs...

Страница 6: ...rtant to observe the polarity Although no damage to the LXT 230 will result from polarity reversal the LXT 230 will not function CAUTION Do NOT apply 110 vac to the 24 vdc wiring terminals Damage to t...

Страница 7: ...the cursor horizontally To enter the calibrate mode both horizontal CALIBRATE keys must be pressed simultaneously Once in the calibrate mode the cursor can be positioned by pressing the individual rig...

Страница 8: ...C This information is extremely helpful in determining the diagnostic status of a pH or ORP electrode In conjunction with regular calibrations the Electrode Diagnostic Screen provides valuable inform...

Страница 9: ...s linear with respect to the sensor input By reversing the signs the European convention or the Thermodynamic American convention can be defined 3 2 7 Temperature Calibration Menu This Menu has two ca...

Страница 10: ...rode is graphically depicted on the right side of the LXT 230 main process screen as a vertically expanding diagnostic bar culminating in a flashing pre pHault alert This pre pHault Alert warns the us...

Страница 11: ...es that would introduce new electrolyte contaminants thereby impacting the rate of reference contamination in the electrode After the desired mV values are set into the DIAGNOSTIC CALIBRATION SCREEN f...

Страница 12: ...ront panel can be performed with a detergent and water DO NOT USE ACETONE ACID OR CAUSTIC SOLUTIONS ON THE ENCLOSURE SURFACE If the enclosure cover must be removed it is wise to clean and inspect the...

Страница 13: ...in Menu by pressing the appropriate MENU SELECTION key 2 Observe that the M appears in front of the current output value The M signifies that the output is being held at the displayed value 3 Press th...

Страница 14: ...or efficiency Procedure 1 Perform a one point calibration as outlined in section 5 3 2 Press the appropriate MENU SELECTION key to reach the Electrode Span Menu and locate the cursor under the 2 as i...

Страница 15: ...e buffer solutions or the handling procedure should be questioned See the pH ORP sensor manual for specifics on the electrode 6 7 Back to Factory Calibration This feature allows the LXT 230 to be rese...

Страница 16: ...enu 3 Position the cursor on the top line 4 Press both horizontal CALIBRATE keys simultaneously to enter the calibrate mode Observe the cursor move under the last digit 5 Position the cursor under the...

Страница 17: ...Model LXT 230 Instruction Manual 17 4 To toggle back to the first unit of measurement press the CALIBRATE keys again Trim C 0 Unit 25 0 C Trim F 0 Unit 77 0 F...

Страница 18: ...to 200 C Channel 3 Output TMP1 Only output available on this channel Mounting Hardware UM Universal mounting plate PM Panel mounting hardware HM Handrail mounting plate including 2 hardware Other Opti...

Страница 19: ...or for proper operation To verify disconnect all sensor wires and cycle power off then on The slope calibration is mis calibrated Typically the transmitter is calibrated with no slope 0 mV pH Check bu...

Страница 20: ...orrection has been calibrated in the temperature trim Examine the temperature and the Temperature Calibration Menu Adjust trim as required LCD turns black Power to the transmitter dropped below the mi...

Страница 21: ...INEARITY 0 05 of full scale SENSITIVITY 1 0 mV STABILITY 0 2 per year 0 C to 70 C RESPONSE TIME 1 second to reach 90 of the change REPEATABILITY 1 0 mV TEMPERATURE COMPENSATION pH Automatic 30 C to 14...

Страница 22: ...Trim Allows for compensation for any differences in RTDs by programming the offset into the transmitter Temperature Display Temperature can be field configured to display in OC or OF Display Contrast...