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User's Guide

Conductivity and TDS Meter

Pen Style Water Quality Meter

Model EC150

Extech EC100 Conductivity Temperature Meter

Extech EC150 Conductivity TDS Temperature Meter

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Summary of Contents for EC100

Page 1: ...e Conductivity and TDS Meter Pen Style Water Quality Meter Model EC150 Extech EC100 Conductivity Temperature Meter Extech EC150 Conductivity TDS Temperature Meter netzerotools com netzerotools com netzerotools com ...

Page 2: ...ttery efficiency Switchable temperature units of measure C F Multi point and one touch calibration features Powered by four 4 LR44 batteries Supplied Materials EC150 meter Four 4 LR44 button batteries Operation manual hard copy mini disk Battery Installation The meter is shipped with the four 4 LR44 button batteries removed The user must install the batteries before the meter can be used Refer to ...

Page 3: ...icro and milli Siemens units 3 Primary measurement reading 4 Parts per thousand and parts per million units 5 Temperature reading 6 Temperature units of measure 7 Battery strength indicator 8 Calibration icon Keypad Description 1 Power ON OFF and SET button 2 Down Arrow Data Hold and Calibration button 3 Up arrow and MODE Button netzerotools com netzerotools com ...

Page 4: ...easured value is below E02 or above E03 specified limits of the meter If this occurs please select another range as described in the Manual Range discussion in previous paragraph Set the temperature coefficient The factory default setting is 2 1 per o C this nominal value is correct for most applications Refer to the Setup section of this User Guide for details on changing this setting Also refer ...

Page 5: ...ly switches it OFF The meter reverts to the Sleep Mode Active state each time it is powered down Setup Mode Parameter P1 Temperature Units Ambient Temperature and Temperature Coefficient settings 1 From the normal operating mode press and hold the SET button for at least 2 seconds until the Px icon appears on the meter display x setup parameter number 2 Use the arrow buttons to scroll to the P1 ic...

Page 6: ...play icon will be visible above the P3 icon 3 Press the SET button momentarily a y or an n will be flashing 4 Use the arrow buttons to select y for YES RESET or n for NO RESET 5 Press the SET button momentarily to confirm the setting 6 Press and hold the SET button for at least 2 seconds to return to the normal operation mode or press the SET button momentarily to move to Parameter P4 see below Pa...

Page 7: ... second calibration solution container Tap the probe on the bottom of the container to remove air bubbles Allow the probe to stabilize to the solution temperature 15 minutes is typical 7 Press and hold the HLD CAL button for at least 2 seconds The conductivity value and the CAL icon on the display will flash 8 Press the MODE and the HLD CAL buttons simultaneously to adjust the displayed conductivi...

Page 8: ... value If detected value displayed value differs from the calibration standard by more than 30 the probe may need cleaning or the meter may require replacing For example The calibration standard is 10ppm and the detected value is 19ppm The adjustable range is 5 7ppm 19 30 In this example the values differ over the 30 limit 9 When the CAL icon stops flashing press the SET button momentarily to conf...

Page 9: ...eter E04 Temperature error TDS ERRORS Measurement outside of range In Manual Range mode press and hold the up arrow for 2 seconds to change range or use the Auto Range mode E04 Temperature error TEMPERATURE ERRORS E01 Temperature circuit damaged Repair meter E02 Temperature value is below allowable range or Temperature circuit damage Check again at room temperature If error persists repair meter E...

Page 10: ...048 79 688 0 9961 442 40 sodium sulfate 40 sodium bicarbonate and 20 chloride Appendix C Calculating TDS Conversion Factors This meter can be calibrated using TDS calibration standard solutions The calibration requires the TDS value at a standard temperature such as 25 C Note that the TDS calibration can be performed using the conductivity calibration detailed earlier in this user guide and therea...

Page 11: ...ctivity variation in C Refer to the following formula Where KTref Conductivity at Tref KT Conductivity at T Tref Reference temperature T Sample temperature Temperature coefficient Note The correction is accurate only within a limited temperature range near T1 and T2 the greater the difference between T and Tref the higher the risk of error Calculating Temperature Coefficient Measuring the conducti...

Page 12: ...alibration One point calibration per range Auto Power OFF After 20 minutes of inactivity Data Hold Freezes displayed reading Automatic Temperature Compensation ATC 0 to 50 C Waterproof IP65 rated TDS Factor Selectable from 0 40 to 1 00 Temperature Coefficient Selectable from 0 to 4 0 C Normalization Temperature Reference Temperature Selectable 20 C or 25 C Basic status indicators Out of range and ...

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