Why does my TPS Measuring Instruments say 'Memory Failed Calibration Lost'?
If your TPS Measuring Instruments displays 'Memory Failed Calibration Lost then: Initialized MUST ReCalibrate', user calibration settings have been lost or corrupted. Re-calibrate the instrument. A full 2-point calibration will be required for pH and a 1 point calibration for temperature.
What to do if my TPS WP-80 battery does not charge?
If the battery isn't charging, it could be a faulty charger or battery. Connect the charger and switch the power on. Display the battery volts in the battery saver menu. If the battery volts are increasing, the charger is OK. If the battery volts do not increase, then the charger is faulty. Replace the charger or the battery, as required.
What to do if my TPS WP-80 meter displays the word OFF, and switches off?
If your meter displays 'OFF' and switches off, the battery is likely below 5.00 volts. Recharge the battery. If this doesn't work, check the charger and replace the battery if the charger is OK.
Why are my TPS WP-80 readings inaccurate, even after calibration?
Inaccurate readings after calibration may be due to a blocked reference junction. Clean the reference junction as per the instructions supplied with the sensor.
Why are my TPS WP-80 readings unstable?
Unstable readings can occur for several reasons: * The electrolyte chamber may need refilling; refill it with saturated KCl filling solution. * The reference junction might be blocked; clean it as per instructions supplied with the sensor. * The glass bulb may be dirty; clean it as per instructions supplied with the sensor. * There might be a bubble in the glass bulb; flick the sensor to remove it. * There could be a faulty connection to the meter; check the connectors and replace if necessary. * The reference junction might not be immersed; ensure that the bulb AND the reference junction are fully immersed. * KCl crystals might be around the reference junction inside the electrolyte chamber; rinse the electrolyte chamber with warm distilled water until dissolved, then repla...
Why does the 2 point calibration fail on my TPS WP-80?
A failed 2-point calibration (slope less than 85.0%) on your TPS Measuring Instruments can be due to: * Incorrect primary buffer: Ensure you're using the buffers the WP-80 is set to automatically recognize. * Dirty glass bulb: Clean the glass bulb as per instructions supplied with the electrode. * Aged electrode: Attempt rejuvenation as per instructions supplied with the electrode. If unsuccessful, replace the electrode. * Damp connector: Dry in a warm place. * Inaccurate buffers: Replace the buffers.
What to do if my TPS Measuring Instruments displays OFF and switches off?
If your TPS Measuring Instruments displays 'OFF' and switches off, the battery is below 5.00 volts. Recharge the battery. If this doesn't solve the issue, check the charger. If the charger is working correctly, replace the battery.
Why are my TPS WP-80 readings inaccurate after calibration?
If your TPS Measuring Instruments gives inaccurate readings even after successful calibration, the reference junction might be blocked. Clean the reference junction, following the instructions supplied with the electrode.
What to do if 1 Point calibration fails (Asymmetry is greater than +/- 1.00 pH) on TPS Measuring Instruments?
If a 1 Point calibration fails with asymmetry greater than +/- 1.00 pH, it could be due to a blocked reference junction or contaminated reference electrolyte. Clean the reference junction as per the instructions supplied with the sensor. Flush with distilled water and replace the electrolyte.
What does it mean if my TPS WP-80 is showing flashing symbol?
A flashing symbol indicates that the battery is below 5.60 volts. Recharge the battery. The unit will switch itself off when the battery falls below 5.00 volts.
Details the display and physical controls of the WP-80 instrument.
Provides detailed technical specifications for the WP-80, including ranges, resolution, and accuracy.
Explains how to select between pH, mV, and Relative mV operating modes on the WP-80.
Step-by-step guide for performing a pH calibration on the WP-80 instrument.
Provides important notes and considerations for performing accurate pH calibrations on the WP-80.
Step-by-step guide for calibrating the temperature measurement function of the WP-80.
Describes the GLP function's behavior when a calibration fails and how it affects stored data.
Lists common error messages, their possible causes, and remedies for the WP-80.
Addresses specific troubleshooting steps for pH and mV measurement issues with the WP-80.
Provides troubleshooting guidance for temperature-related inaccuracies or calibration failures on the WP-80.
Provides a diagnostic test to help determine if the WP-80 instrument or its electrode is faulty.
General| Accuracy | ±0.05% + 1 digit |
|---|---|
| Resolution | 0.1 RPM (2.5-999.9 RPM); 1 RPM (1000-99, 999 RPM) |
| Power Supply | 9V battery |
| Display | LCD |
| Operating Temperature | 0 to 50°C |
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