1. Introduction Thank you for purchasing this long cable dissolved oxygen pen. Please read the manual in its entirety and retain for future use. Proper use and mainte- nance of this product can result in accurate measure- ments and extended service life. Features: •...
3. LCD Display 4. Keypad Operation • Short press to turn on. When no key is oper- ated for 20 minutes, unit will auto power off. Press and hold when turning on until the word “n” appears to disable the auto off feature. •...
5. Quick Start 1. No need to remove the anti-collision cover before use. 2. This meter is ready to use and has been pre-filled with electrolyte. 3. Short press the “POWER” button to turn on. 4. Please allow the unit to stabilize for 5 minutes when first powered on.
6. Calibration In order to obtain accurate readings, we recommend performing calibration before each operation, after membrane and/or electrolyte replacement. There is no need to remove the anti-collision cover to perform calibration. 1. In normal mode, change measurement units to % and place the probe in fresh air.
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Before each regular use, shake the probe gently and visually inspect the electrolyte. Refill the probe with electrolyte if the fluid is less than half full. Power on & off the Meter Short press the “POWER” button to turn on the LCD. Long press the “POWER”...
6. Maintenance Visual Checks Check the probe every six months or when you ob- serve strange readings. 1. The probe does not need to be filled entirely with electrolyte but once the probe is less than half full, it will need to be refilled. 2.
5. Perform calibration once membrane replacement is complete. 7. Setup This meter has an advanced setting mode that allows you to customize parameters. To enter the settings mode, long press the “SET” button. The first setting you will see is the salinity value. If you want to select other parameters, short press the “POWER”...
8. Troubleshooting Error Code List D.O. Value E01: Indicates that the sensing element is damaged. Repairs to the sensing element are not possible and the probe will need to be replaced. E03: The signal strength is to high, it is normal to appear for a few seconds when powering on the unit.
If your model has since been discontinued, an equivalent Sper Scientific product will be substituted if available. This warranty does not cover probes, batteries, battery leakage, or damage resulting from accident, tampering, misuse, or abuse of the product.
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