What to do if wtw Measuring Instruments shows E3 error?
If the WTW Measuring Instruments indicates that the cell constant is outside of the admissible range (Error E3), it could be due to a contaminated measuring cell or calibration issues. Try cleaning the measuring cell and check the calibration. If the problem persists, you might need to replace the cell.
General| Temperature accuracy | ± 0.1 °C |
|---|---|
| Salinity measuring range | 0.0 … 70.0 |
| Temperature measuring range | -5.0 to 105.0 °C |
| Reference temperature | 20 / 25 °C |
| Cell constant | 0.475 cm⁻¹ |
| Resolution | 0.1 °C |
| Power Supply | 2 x AA batteries |
| Weight | Approx. 0.3 kg |
Important safety guidelines and warnings for instrument operation.
Description of the components included in the LF 330/340 set.
Details of instrument components like Display, Keypad, and Sockets.
Instructions for initial instrument setup and operation.
Procedures for determining and setting the cell constant.
Methods for adjusting temperature compensation functions.
Covers conductivity, salinity, and TDS measurement procedures.
Information on probe status, symbols, and calibration intervals.
Instructions for storing, reading, and erasing measured data.
Description of analog signal output for external recorders.
Details on serial interface, remote control, and data transfer methods.
Guide to setting instrument parameters like Baud rate and interval times.
Information on system messages, causes, and remedies for errors.
List of available accessories for the instrument and conductivity cell.
Instrument specifications, EMC test, and manufacturer's compliance certificates.
Specific manual for the standard conductivity cell.
Details of instrument display indicators and keypad functions.
Description of the instrument's rear panel connection sockets.
Covers battery and mains operation, display indicators, and startup tests.
Procedures for determining and setting the cell constant.
Settings for temperature compensation functions.
Covers conductivity, salinity, and TDS measurement procedures.
Information on probe status, symbols, and calibration intervals.
Instructions for storing, reading, and erasing measured data.
Explanation of the various symbols and values shown on the display.
Description of the functions assigned to each button on the keypad.
Details on the connection sockets located on the rear panel.
Instructions for operating with non-rechargeable batteries and their replacement.
Instructions for operating with mains power and rechargeable batteries.
How to interpret the battery condition indicator and economy circuit.
Procedure for turning on the instrument and performing a display test.
Instructions for setting the date and time after total discharge.
Procedures for determining and setting the cell constant.
Method for determining the cell constant using a standard solution.
Instructions for manually inputting the cell constant value.
Procedure for selecting predefined cell constant values.
Selectable temperature functions and their settings.
Instructions for selecting and setting the linear temperature function.
Procedure for disabling temperature compensation.
Prerequisites and procedures for conductivity measurement.
Procedure for measuring salinity.
Procedure for measuring total dissolved solids (TDS).
Meaning of different probe symbols and their evaluation.
Explanation of probe quality indicators and their meaning.
Information on calibration interval expiration and recalibration.
Details on memory capacity and the structure of stored data records.
Instructions for manually saving measured data.
Procedure for setting up and using automatic data storage.
Indication when the memory is full and how to overwrite data.
Instructions for retrieving stored data from memory.
Procedure for displaying stored data on the screen.
Instructions for deleting all stored measuring records.
Description of analog signal output for external recorders.
Details on serial interface, remote control, and data transfer methods.
Instructions for connecting and configuring the serial interface.
Operating the instrument remotely via PC.
Information on the calibration protocol for conductivity/salinity.
Automatic transmission of calibration protocols and measuring records.
Setting transmission intervals for measurement data.
Example of timed data output during measurement.
Procedure for transmitting stored data from memory.
Guide to setting instrument parameters like Baud rate, Date, Time, and Interval times.
Instructions for resetting measurement functions to default settings.
Table of system messages for conductivity, their causes, and remedies.
Table of general system messages, their causes, and remedies.
List of general accessories, including cables and holders.
List of conductivity cells, cables, and standards.
Specifications for housing, EMC, VDE standards, and operating conditions.
Details on battery types, operation time, and data security.
Specifications for timekeeping, data memory, analog, and serial outputs.
Detailed specifications for conductivity measurement ranges, resolution, and cell constant.
Specifications for salinity, TDS, and temperature measurements.
EMC test results and compliance information.
Certificate for use in hazardous areas (Zone 2).
List of recommended application reports for conductivity measurements.
Description of the TetraCon® 325 cell, its components, and application range.
Instructions for connecting the conductivity cell to the meter.
Guidance on cleaning the conductivity cell for different types of contamination.
Information on cell aging, factors causing damage, and warranty limitations.
Recommendation for proper disposal of the conductivity cell.
Diagram showing sensor connections and 8-pin plug pinout.
Specifications for electrodes, shaft material, and dimensions.
Details on immersion depth requirements and pressure resistance.
Information on cell connections, plug types, and cell constant.
Specifications for the integrated thermistor and temperature measurement.
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