How to clean a blackened silver anode on TPS 90-FL Measuring Instruments?
If the silver anode on your TPS Measuring Instruments meter is blackened, it means the electrode has been exposed to sulphides or other chemical poisoning. Remove the pressure compensation diaphragm and membrane, then soak in 5% Ammonia solution for 10 minutes. If cleaning is unsuccessful, return the sensor to the TPS factory for cleaning and service.
What causes 1 point calibration failures on TPS 90-FL?
A 1-point calibration failure (pH asymmetry is greater than ±1.00 pH) on your TPS Measuring Instruments meter can be caused by a blocked reference junction or contaminated reference electrolyte. Clean the reference junction as per instructions supplied with the pH or reference electrode. Flush with distilled water and replace the electrolyte.
Why do the readings drift on my TPS 90-FL?
If the readings on your TPS Measuring Instruments meter are drifting, it could be due to a build-up of dirt or oily material on the electrode plates of the sensor. Clean the sensor.
Why won't my TPS Measuring Instruments meter turn on?
If your TPS Measuring Instruments meter won't turn on, the battery may be exhausted. Try recharging the battery for approximately 18 hours. If it still fails to turn on, check the charger. If the charger is working, replace the battery.
Why does my TPS 90-FL attempt span calibration instead of zero calibration?
If your TPS Measuring Instruments meter attempts span calibration instead of zero calibration, the sensor has a zero error. Thoroughly rinse the sensor in distilled water and allow it to completely dry in air before attempting zero calibration.
Why does standard calibration fail with a low k factor on TPS 90-FL?
A standard calibration failure with a k factor greater than 25% below the nominal value on your TPS Measuring Instruments meter can be due to: * Inaccurate standard solution; replace the standard solution. * A build-up of conductive material, such as salt, on the sensor; clean the sensor. * A faulty sensor. * A faulty instrument.
What causes standard calibration failures with high k factor on TPS 90-FL?
A standard calibration failure with a k factor greater than 25% above the nominal value on your TPS Measuring Instruments meter can be caused by: * The sensor not being immersed correctly; immerse sensor correctly as per diagrams. * A build-up of dirt or oily material on electrode plates; clean sensor as per the instructions. * A worn-off platinum-black coating; sensor requires replatinization or return to the factory for replatinization. * Inaccurate standard solution; replace standard solution. * A faulty sensor. * A faulty instrument.
What causes 2 point calibration failures on TPS 90-FL?
A 2-point calibration failure (pH slope is less than 85.0%) on your TPS Measuring Instruments meter can be caused by: * Incorrectly set pH buffers. For automatic pH buffer recognition, ensure that you are using buffers that match the selected buffer set. Otherwise, ensure that the buffer value is entered correctly at pH calibration. * A pH glass bulb that is not clean; clean the sensor surface or glass bulb as per instructions supplied with the electrode. * An aged electrode; attempt rejuvenation as per instructions supplied with the electrode. If unsuccessful, replace the electrode. * A damp connector; dry it in a warm place. * Inaccurate pH buffers; replace the buffers.
Why does my TPS 90-FL fail to calibrate even with a new sensor?
If your TPS Measuring Instruments meter fails to calibrate even with a new sensor, it may be due to calibration settings being outside of allowable limits because of a previous failed calibration. Initialize the unit.
Why are the readings low or near zero on my TPS Measuring Instruments?
Low or near-zero readings on your TPS Measuring Instruments meter can be due to several reasons: * The sensor may have a build-up of dirt or oily material on electrode plates; clean the sensor. * The sensor might not be immersed correctly; immerse the sensor as per the diagrams. * The sensor could be faulty. * The instrument itself might be faulty.
Details the physical layout and interactive elements of the 90-FL unit's front panel.
Provides detailed technical specifications for the 90-FL instrument's various functions.
Guides on how to choose the desired units for Dissolved Oxygen readings.
Details the process for calibrating the sensor using zero and span standards, including air and solution methods.
Explains how to input the standard solution value for Conductivity calibration.
Details how to select the correct k factor for different Conductivity sensors.
Outlines the steps for performing zero and standard calibrations for Conductivity measurements.
Explains how to input the standard solution value for TDS calibration.
Details how to select the correct k factor for different TDS sensors.
Outlines the steps for performing zero and standard calibrations for TDS measurements.
Outlines the procedure for performing pH calibration using buffer solutions.
Details the process for calibrating the temperature sensor for accurate readings.
Details the process for manually saving measurements, including different A&B data input configurations.
Explains the different modes for automatic data logging: Rate per Day, Time of Day, and Sampling Period.
Lists common error messages, their causes, and remedies for general issues.
Provides solutions for specific problems encountered with Dissolved Oxygen measurements.
Offers solutions for problems related to Conductivity and TDS sensor calibration and readings.
Provides solutions for specific issues encountered with pH measurements and calibration.
Lists troubleshooting steps for temperature measurement inaccuracies.
General| Brand | TPS |
|---|---|
| Model | 90-FL |
| Category | Measuring Instruments |
| Language | English |
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