Extech EC500 - Manuals - manualsarea.com

Page 3 - Meter Description; Front Panel Description; pH

EC500-en-GB_v2.6 10/14 3 EC500 Meter Description Front Panel Description 1. Battery compartment cover 2. LCD Display 3. MODE/HOLD button 4. CAL/RECALL button 5. ON/OFF button 6. Electrode Collar 7. pH/Conductivity Electrode (Note: The Electrode cap is not shown) LCD Display 1. Bargraph display 2. Me...

Page 4 - Measurement Procedure; ON

EC500-en-GB_v2.6 10/14 4 8888 Conductivity TDS Salinity PH L M H pH (ppm) (mg/l) mgL Measurement Procedure Sample Preparation: 1. For Conductivity, TDS or Salinity place the test sample in a sample cup with enough depth (2.5cm minimum) to cover the electrode. Stir the solution to remove any air bubb...

Page 5 - Changing Measurement Function; μS; TDS Compensation Ratio

EC500-en-GB_v2.6 10/14 5 Changing Measurement Function The meter can be set to measure pH, Conductivity, TDS or Salinity. To change the mode: 1. Press and Hold the MODE/HOLD button for 2 seconds and the display will begin to scroll through the units. µS (Conductivity); pH ; ppm S (Salinity); ppm (TD...

Page 6 - Recalling Stored Readings; clr

EC500-en-GB_v2.6 10/14 6 Recalling Stored Readings 1. Press the CAL/RECALL button and then press the MODE/HOLD button. A location number (1 through 25) will briefly appear and then the value stored in that location will appear. The displayed units will flash, indicating that the storage recall mode ...

Page 8 - Calibration - Conductivity; Considerations and Techniques

EC500-en-GB_v2.6 10/14 8 Calibration - Conductivity Meter accuracy verification should be performed on a periodic basis. Once per month is the recommended cycle for normal use. If calibration is required, a conductivity standardizing solution must be obtained. The meter can be calibrated in any or a...

Page 9 - Operational Matrix

EC500-en-GB_v2.6 10/14 9 Operational Matrix Function / Resulting Action Power Status Mode Setting Required Key Press Sequence On/Off On or Off Any Momentary press of the ON/OFF key Calibration On pH or Conductivity Press & hold CAL/RECALL key for 2 seconds, until it enters CAL function Store Rea...

Page 10 - Specifications

EC500-en-GB_v2.6 10/14 10 Specifications Display 2000 count LCD with Bargraph pH Range 0.00 to 14.00 pH Accuracy ±0.01 pH typical pH ATC Range 0°C to 90 o C (32°F to 194 o F) pH Reference Junction Permanent gel, non-refillable Conductivity ranges 0 to 199.9µS/cm 200 to 1999µS/cm 2.00 to 19.99mS/cm T...

Page 11 - Maintenance; EU Battery ordinance; disposal in the household garbage is prohibited!

EC500-en-GB_v2.6 10/14 11 Maintenance Battery Replacement 1. Twist off the battery compartment cap 2. Holding the battery housing in place with a finger, pull out the battery carrier using the two small tabs. 3. Replace the four (4) CR2032 batteries observing polarity. 4. Replace the battery compart...

Page 12 - Cleaning Recommendations

EC500-en-GB_v2.6 10/14 12 Cleaning Recommendations When cleaning the probe, take care not to scratch or damage the sensing surface or the platinized electrode surfaces. Contaminant Cleaning Solution Instructions Water soluble substances Deionized water Soak or scrub with a soft brush. Recondition in...

Page 13 - Troubleshooting; Copyright

EC500-en-GB_v2.6 10/14 13 Troubleshooting Problem Possible Cause Action Reading is frozen Unit is in “HOLD” mode Press MODE/HOLD key to exit “HOLD” mode “BAT” message Batteries are low Replace batteries Unit will not calibrate in pH Low pH slope Replace electrode, see reorder information Unit will n...