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Summary of Contents for Extech Instruments ExStik II EC400
- Page 1 USER MANUAL Conductivity / TDS / Salinity / Temperature Meter ExStik II EC400 ®...
- Page 2 Introduction Congratulations on your purchase of the EC400 Conductivity / Total Dissolved Solids (TDS) / Salinity / Temperature meter. The EC400 uses dynamic cell-constant technology, allowing one electrode to do the job of many. Careful use and maintenance will provide years of reliable service. Powering the Meter The EC400 uses four (4) CR2032 lithium-ion batteries (included).
- Page 3 Meter Description Front Panel 1. Battery compartment 2. LCD 3. MODE/HOLD button (change mode, access Data Hold, store reading) 4. CAL/RECALL button (calibrate, change temperature units, recall reading) 5. ON/OFF button 6. Electrode Collar 7. Electrode Display 1. Bar graph display 2.
- Page 4 Operation Sample Preparation For Conductivity, TDS or Salinity place the test sample in a sample cup with sufficient depth to cover the electrode (1 in. minimum). Stir the solution to remove air bubbles. Measurements 1. Press the ON button. The icons and SELF CAL will appear during the power- up diagnostics.
- Page 5 Changing Measurement Function The meter can be set to measure Conductivity, TDS, or Salinity. To change the mode: 1. Long press the MODE/HOLD button for 2 seconds, to begin scrolling through the units. µS (Conductivity) ppm (TDS) mg/l (TDS) ppm S (Salinity) 2.
- Page 6 Auto Power OFF (APO) APO switches OFF the meter after 10 minutes of inactivity. APO Disable Switch ON the meter. Short press CAL/RECALL. Immediately long press the MODE/HOLD and ON/OFF buttons, simultaneously, for approximately 2 seconds, until oFF is briefly displayed. APO is now disabled. On the next power cycle, APO will be enabled again.
- Page 7 Calibration (Conductivity) Verify meter accuracy approximately once per month. If calibration is required, use a conductivity standard solution. The meter can be calibrated in any or all three of its ranges. ONLY standardizing solutions of 84µS/cm, 1413µS/cm, and/or 12.88mS/cm (12,880µS/cm) may be used for the automatic calibration recognition procedure.
- Page 8 Operational Matrix Function/Action Power Mode Button-Press Sequence Status On/Off On or Off Short press ON/OFF Calibration Conductivity Long press CAL/RECALL for 2 seconds, until it enters CAL function Store Reading Any measure Short press MODE/HOLD mode Hold Release Hold Mode Short press MODE/HOLD Enter Memory Any measure...
- Page 9 Maintenance Battery Replacement Twist off the battery compartment cap. Holding the battery housing in place, pull out the battery carrier, using the two small tabs. Replace the four (4) CR2032 batteries observing correct polarity. Replace the battery compartment cap. Battery Safety •...
- Page 10 Cleaning and Storage Recommendations • When cleaning the probe, take care not to scratch or damage the platinized electrode surfaces. • Do not touch the inner surfaces of the conductivity electrodes. Touching the surface of the platinized electrodes may damage and reduce the life of the probe. •...
- Page 11 Specifications Display 2000 count LCD with bar graph Conductivity ranges 0 to 199.9µS/cm 200 to 1999µS/cm 2.00 to 19.99mS/cm TDS ranges 0 to 99.9ppm or mg/L (Variable ratio) 100 to 999ppm or mg/L 1.00 to 9.99ppt or g/L Salinity range 0 to 99.9ppm 100 to 999ppm 1.00 to 9.99ppt...
- Page 12 Two-year Warranty Teledyne FLIR warrants this Extech brand instrument to be free of defects in parts and workmanship for two years from date of shipment. To view the full warranty text please visit: https://www.flir.com/support-center/warranty/instruments/extech-product-warranty/ Calibration and Repair Services Teledyne FLIR offers calibration and repair services for the Extech brand products we sell. We offer NIST traceable calibration for most of our products.
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