User Guide ExStikTM Model RE300 Waterproof ORP Meter
ExStikTM Description 1 Front Panel Controls 1. Battery compartment cap 2. LCD Display 3. MODE button 4. CAL button (unused on RE300) 5. ON/OFF button 6. Electrode collar 7. Electrode 2 mV 3 4 5 (Electrode cap is not shown) 6 7 3 Display Description 1. Reading 2. Units 3. Bargraph 4. Data Hold 5. Scale 6. Low Battery 2 5 1 4 6 2 RE300-en-GB_V4.
Operation Getting Started Battery Activation: An insulating tab is located in the battery compartment and prevents battery drain during storage. It must be removed before use. White KCL crystals may be present on the electrode. These crystals will dissolve in a distilled water soak or they can be simply rinsed with tap water. Do NOT wipe the end of the RE300 electrode as it may damage the sensor. When the RE300 is turned on, it enters the Automatic Calibration mode.
Measurement and Display Considerations If the unit appears to be locked (display frozen). It is possible that the Data Hold mode has been inadvertently accessed by pressing the MODE button. Simply press the MODE button again or turn the meter off and restart if the display appears frozen. If the meter does latch up and no button presses revive it, remove the batteries and restart. Note that if the batteries are removed, any stored readings will be discarded.
Battery Replacement 1. 2. 3. Twist off the battery compartment cap Replace the four (4) 2032 batteries observing polarity. Replace the battery compartment cap Never dispose of used batteries or rechargeable batteries in household waste. As consumers, users are legally required to take used batteries to appropriate collection sites, the retail store where the batteries were purchased, or wherever batteries are sold. Disposal: Do not dispose of this instrument in household waste.
