Teledyne LXT-230 - Manuals - manualsarea.com

Page 2 - TABLE OF CONTENTS

Model LXT-230 Instruction Manual / 2 TABLE OF CONTENTS UNPACKING THE INSTRUMENT .................................................................................... 4 1.0 GENERAL DESCRIPTION ........................................................................................ 4 1.1 Membrane Switc...

Page 4 - Membrane Switches; adjustments are required for future buffer calibrations.; Back To Factory Calibration

Model LXT-230 Instruction Manual / 4 UNPACKING THE INSTRUMENT Your Teledyne instrument has been carefully packaged to protect it from damage during shipment and dry storage. Upon receipt please follow the procedure outlined below. 1. Before unpacking, inspect the condition of the shipping container ...

Page 5 - can have either a positive or negative common.; Optional Software; Allows only authorized personnel entry to calibration modes.

Model LXT-230 Instruction Manual / 5 Fahrenheit. A toggle function in the Temperature Calibration Menu allows this selection to be performed in the field. 1.7 PID Output (Optional) An optional PID output is available and provides a 4-20 mA, three-mode control signal to a transducer or a final contro...

Page 6 - or they can be powered by one power supply.

Model LXT-230 Instruction Manual / 6 2.0 INSTALLATION 2.1 Mounting Three typical installation configurations are available for the LXT-230 transmitter: universal mounting, handrail mounting, and panel mounting configurations. The universal mounting configuration allows the LXT-230 to be mounted on a...

Page 7 - not; The; Display Menus and Screens; Contrast

Model LXT-230 Instruction Manual / 7 3.0 FAMILIARIZATION This section will provide an overview of the front panel key functions and the display menus for a single channel pH and ORP transmitter. Multiple channel transmitters will have the same menus. 3.1 Key Functions Cursor positions or numeric adj...

Page 10 - SENTINEL DIAGNOSTICS; measurement standard; However, a dominant failure mechanism of an; Reference Half Cell; Diagnostic set up and configuration menus; pH

Model LXT-230 Instruction Manual / 10 4.0 SENTINEL DIAGNOSTICS The basic menu structure of the LXT-230 transmitter is architecturally the same as the LXT-230 pH, ORP and PION, with the only variable being the diagnostic information on the main and special diagnostic menus. The critical path to your ...

Page 11 - value, as set in by the user or TAI at time of shipment, may require; final pre-pHault alert

Model LXT-230 Instruction Manual / 11 To file the input, with the microprocessor, exit the calibrate mode by pressing either menu selection key. The upper half of the split screen menu displays absolute reference potential (±2 millivolts) directly from the electrode via the diagnostic signal co cond...

Page 12 - Replacement of the Microprocessor

Model LXT-230 Instruction Manual / 12 5.0 MAINTENANCE If service of the internal components is required, always turn off the power to the instrument. 5.1 Cleaning Cleaning the front panel can be performed with a detergent and water. DO NOT USE ACETONE, ACID OR CAUSTIC SOLUTIONS ON THE ENCLOSURE SURF...

Page 13 - Manual Output Mode; To release manual output:; Contrast Adjustment

Model LXT-230 Instruction Manual / 13 6.0 CALIBRATION 6.1 Manual Output Mode To perform calibrations without interfering with control or recorder functions, the LXT-230 incorporates a manual output mode. The current output is set to the desired level and saved until changed or released from the manu...

Page 14 - IMPORTANT

Model LXT-230 Instruction Manual / 14 2 pH 4.00 -58.2 mV/pH 2 ORP 180.0 mV .980 mV/ORP Procedure: 1. Press the appropriate MENU SELECTION key to reach the Electrode Standardization Menu and locate the cursor under the "1" as illustrated in section 3.2.4. 2. For diagnostic reasons note the pH...

Page 15 - Calibration Using a Grab Sample as a Standard; Procedure at the Standardization Menu:; Output Calibration

Model LXT-230 Instruction Manual / 15 diagnostic tool in determining the degradation of the electrode. Large differences between calibrations may indicate coating or damage to the measurement half-cell. 6.5 Calibration Using a Grab Sample as a Standard The LXT-230 allows easy standardization to a gr...

Page 16 - Temperature Calibration - Trim Adjustment; Procedure for trim adjust:

Model LXT-230 Instruction Manual / 16 Procedure: 1. Press the appropriate MENU SELECTION key to reach the Output Calibration Menu. 2. Position the cursor on the top line to change the 4 mA point or the bottom line to change the 20 mA point. 3. Press both horizontal CALIBRATE keys simultaneously to e...

Page 19 - TROUBLESHOOTING GUIDE; Symptom

Model LXT-230 Instruction Manual / 19 8.0 TROUBLESHOOTING GUIDE Symptom Possible Causes Suggested Actions No power to the instrument. Check power supply to be sure the correct voltage is being supplied to the transmitter. (13.5 to 50 VDC) Check polarity of transmitter wiring. Contrast level is set t...

Page 21 - APPENDIX A - SPECIFICATIONS; MAXIMUM LOOP IMPEDANCE

Model LXT-230 Instruction Manual / 21 APPENDIX A - SPECIFICATIONS MEASUREMENT RANGE pH: 0.00 to 14.00, fully expandable and reversible, standard. -2.00 to 14.00 pH, optional. ORP: +1000 to -1000 mV, fully expandable and reversible, standard. OUTPUT 4-20 mA or 20-4 mA, linear and expandable. Up to a ...